SU1602692A1 - Table for positioning blanks - Google Patents

Abstract

The invention relates to mechanical engineering, and more specifically to devices for positioning rectangular workpieces when machining sides. The purpose of the invention is to increase productivity in the positioning of rectangular blanks due to the combination in time of rotation and translational movement of the blank. When the pneumatic cylinder 17 is actuated, the axis 2 rotates in the bearing assembly 4 by 90 ° and transmits the rotation of the guide 12 and the slot 10 of the base plate 1. The latter rotates and simultaneously acts through the slot 11 and the guide 13 to the support sleeve 9 located in the bearing assembly 8 Since the axis 2 and the axis of the support sleeve are not aligned, the base plate 1, together with the workpiece, rotated by 90 °, is simultaneously displaced along the guides 12 and 13. 1 CF of the flap, 1 slug.

Description

1602692

. The invention relates to mechanical engineering, and more specifically to devices for positioning rectangular workpieces when machining sides.

The purpose of the invention is to increase productivity in the positioning of rectangular blanks by combining in turn time and translational movement of the blank.

The drawing shows a table, a general view, a partial section.

The hundred contains a base plate 1, with which the axis 2 is rigidly connected, mounted in the base 3 through the sub-unit 4. In the guides 5 of the base 3, the slide 6 is movable under the action of the screw 7. In the case 6 by means of the bearing unit 8 there is a support sleeve 9 can be rotated. In the base plate I, nests 10 and 11 are made at a right angle, and axes 2 and sleeve 9 are rigidly connected, respectively, guides 12 and 13, which are arranged to move in slots 10 and 11 of the base plate 1. Geometric axes The knots 4 and 8 are perpendicular to the plane of the base plate 1 and are separated from each other by a distance equal to the half-difference of the longitudinal and transverse adjacent sides of the processed rectangular blank (not shown).

JloBopOTHO-fixing indexing mechanism of the table can be executed of the type: lever-cam, Maltese, ratchet, rocker, cam-; tsevochnym, gear-lever, etc., depending on the required speed of accuracy of indexation, the necessary flexibility and adjustment and adjustment. The drawing shows a lever cam-cam swing-locking mechanism with a pneumatic actuator, consisting of a cam sprocket 14 fixed on the axis 2, a rocker arm 15 mounted on an axial support 16 of the base 3 and a pneumatic cylinder 17, the width of which is mounted on an axial support 18 bases 3 ..;

The base plate 1, in addition to the sockets 10 and 11 forming translational pairs with guides 12 and 13, has supporting elements 19 serving to base the blank (not shown) on the table.

The blank is based on the supporting elements 19, so that the sides of its rectangular contour to be machined are positioned strictly perpendicular to slot II, with the adjacent side coinciding with the path of the machining tool (not shown). After machining, the tool is retracted from the workpiece.

four

Energy is supplied to the driving pneumatic cylinder 17 of the pivot-fixing mechanism and by means of the rocker arm 15 and the cam cam 14 (pivot 5 on the right angle axis 2 in the bearing assembly 4 of the base 3. At the same time, the drive action through axis 2 and the translational pair - a guide 12 and a socket 10 - is transmitted to the base plate I and through the second

Q translational pair - nest 11 and guide 13 - to the support sleeve 9, turn it to the right angle in the pinch assembly 8. The base plate I together with the workpiece fixed on it as a result of interaction with the axis 2 and the supporting sleeve 5 turns 90 °, simultaneously shifting along the guides 12 and I;}. At the end of processing, the workpiece is again rotated with an offset by an angle of 90 °, etc. When the processing of the right blank contour of the workpiece is completed, the base plate 1 of the table is finally reset to the next 90 ° angle;

In the case of a transition to the processing of a workpiece with a different aspect ratio of the rectangular contour, the table is re-adjusted as follows.

to remove axis 2 to position

Workings of a trajectory of any party saved.

elk equal to half the length of the most of

adjacent sides of the machined rectangular contour, and the position of the axis of the support sleeve 9 relative to axis 2 is adjusted so that the distance between them

was equal to. half-length for; 1H adjacent

sides of the Novbi blanks. For this, the slide 6 is not moved on base 3 with

Screw 7 ..:

35

Claims (2)

1. A table for positioning the workpiece, including a base plate with a pivot axis located at the base, and a driving pivot-fixing mechanism, characterized in that, in order to increase productivity when positioning the rectangular billets, the table is equipped with a support sleeve that is eccentrically located base plate can be rotated relative to the latter, and two mutually perpendicular guides placed in the nests, which are made in the base plate, with the possibility of movement, one of rigidly connected to the axis of the base plate, and the other to the support sleeve. 2. The table according to claim, characterized in that the one supporting sleeve is mounted for movement perpendicular to the axis of the base plate.