SU1404240A1 - Clamping device for bearing shells - Google Patents

Abstract

The invention relates to a machine tool industry, in particular, to devices for fastening parts on metal-cutting machines, for example, sliding bearing shells during drilling and countersinking of holes. The aim of the invention is to improve the accuracy of fixing the part. The device is mounted on the feed tray of the flUiJ casting machine. It is formed by struts 2 and 3, a stop bar 4 and grate 5 and 6 mounted on eccentric rollers 7. The device includes a yoke 8, guide pins 9, a clamp 10, an adjusting wedge 11, studs 12, nuts 13 and a load cylinder 14 with rod 15. In traverse 8 there is a groove with inclined planes in which regulating wedges 11 are installed, located on both sides of the clamp 10. Wedge 11 are designed to adjust the position of the clamp 10, which provides the exact position of the hole in the workpiece 1. In clamp 10 there is a cylindrical slot 18 along the outer radius of the workpiece 1 and the groove 19 for the passage of the tool 17, which is guided by conductor sleeves 20. The adjusting wedges 11 are moved with the help of nuts 13 on the studs 12. The studs 1.1 are fixed on the crosspiece 8. 3 Il. B (L to j

Description

The invention relates to a machine tool industry, and in particular to devices for fastening parts on metal-cutting machines, for example, sliding bearing shells when drilling and countersinking holes

The aim of the invention is to improve the accuracy of fixing parts.

FIG. 1 shows a clamping device for bearing shells, general view; in fig. 2 is a section A-A in FIG. one; in fig. 3 is a section BB in FIG. one.

A clamping device for clamping blanks of 1 bearing shells is mounted on the feed tray of the drilling machine.

ten

The cutting tools 17 of the power heads are guided by conductor sleeves 20, which are mounted for the drilling position on a special bracket 21 mounted on a rack 3, and for a zeroing position on a rack 2.

The clamping device for bearing shells works as follows.

In the initial position, the clamps 10 and the cutting tool 17 for drilling the hole are in the outermost position, and the cutting tool 17 for countersinking the hole is in the right extreme position.

From the store (not shown), the blanks 1 are oriented in an oriented position (the joints of the feed tray are formed by racks to the elastic bar) are moved

and 3, installed on the bed of the machine, on the feed tray.

a stop bar 4 fixed on the stand-A drive of the stepper conveyor 2, and the grate bars 5 and 6, mounted by a miter (not shown) of the workpiece 1, is turned on.

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on eccentric rollers 7 between posts 2 and 3.

The clamping device comprises a traverse 20 su 8, guide pins 9, a clamp 10, a adjusting wedge 11, studs 12, nuts 13 and a salt cylinder 14 with a brush 15.

The guide pins 3 serve to guide the axial movement of the crosspiece 8 and the clamp 10 placed therein perpendicular to the axis of the feed tray. The pins 9 are mounted on the rack 3. On the pins 9, the bolster 8 is worn with its holes. In the latter there is a groove with inclined planes in which the adjusting wedges 11 are located, located on both sides of the clamp 10. The clamp 10 is connected to the rod 15 of the power cylinder 14 and the latter is mounted on a bracket 16 mounted on a rack 3.

The adjusting wedges 11 are intended to adjust the position of the clamp 10 and, therefore, the workpiece 1 of the bearing shell relative to the cutting tool 17.

The adjusting wedges 11, using special nuts 13 mounted on them, which are screwed onto the studs 12, can be moved along the groove of the traverse 8. The clamp 10 is moved perpendicular to the axis of the feeding tray. The studs 12 are fixed on the traverse 8.

In the clamp 10 there is a cylindrical seat 18 along the outer radius of the workpiece 1 and the groove 19 for the passage of the cutting tool 17.

The groove 19 is designed in such a way that it does not interfere with the passage of the cutting tool 17 when moving the presser 10 perpendicular to the axis of the feed tray.

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The actuators of the clamps 10.

Here, the clamps 10 move to the right and clamp the blanks 1. The actuators of the power heads (not shown) are activated, as a result of which the cutting tools 17 (drills and countersinks) are rotated and fed to the blank 1. The holes are drilled and countersink. The actuators of the clamps 10 and of the cutting tools 17 are switched to reverse, as a result of which the latter are retracted from the workpiece 1 to the initial position, and the cycle is repeated.

To adjust the position of the clamp 10 with the workpiece 1 in the direction of the axis of the feed tray, the adjusting wedges 11 are moved in different directions, rotating the nuts 13 of the studs 12 in turn.

Claims (1)

Invention Formula A clamping device for bearings inserts comprising a clamping element mounted for reciprocating movement associated with an actuator, characterized in that, in order to improve the fixing accuracy, the clamping element is designed as a cross-piece with a wedge groove and a clamp in it wedges installed on both sides, one side of each wedge designed to interact with the clamp and the other with the wedge surface of the groove of the crosshead, and the clamp is mounted movable perpendicular to the direction of movement of the traverse. The cutting tools 17 of the power heads are guided by conductor sleeves 20, which are mounted for the drilling position on a special bracket 21 mounted on a rack 3, and for a zeroing position on a rack 2. The clamping device for bearing shells works as follows. In the initial position, the clamps 10 and the cutting tool 17 for drilling the hole are in the outermost position, and the cutting tool 17 for countersinking the hole is in the right extreme position. From the store (not shown) of the workpiece 1 in the oriented position (joints ob5 0 0 The actuators of the clamps 10. Here, the clamps 10 move to the right and clamp the blanks 1. The actuators of the power heads (not shown) are activated, as a result of which the cutting tools 17 (drills and countersinks) are rotated and fed to the blank 1. The holes are drilled and countersink. The actuators of the clamps 10 and of the cutting tools 17 are switched to reverse, as a result of which the latter are retracted from the workpiece 1 to the initial position, and the cycle is repeated. To adjust the position of the clamp 10 with the workpiece 1 in the direction of the axis of the feed tray, the adjusting wedges 11 are moved in different directions, rotating the nuts 13 of the studs 12 in turn. 35 Invention Formula A clamping device for bearings inserts comprising a clamping element mounted for reciprocating movement associated with an actuator, characterized in that, in order to improve the fixing accuracy, the clamping element is designed as a cross-piece with a wedge groove and a clamp in it wedges installed on both sides, one side of each wedge designed to interact with the clamp and the other with the wedge surface of the groove of the crosshead, and the clamp is mounted movable perpendicular to the direction of movement of the traverse.