SU394129A1 - MACHINE FOR THE PRODUCTION OF FLANGES - Google Patents

Description

one

The invention relates to the field of metal forming, in particular, to equipment for the manufacture of flexible-break-in flanges.

Known flange walls containing a table with a mandrel for bending and bending heads with the possibility of radial movement and rotation around the mandrel. They have a complex structure or require considerable time to remove the ends of the workpiece and remove the finished product from the mandrel.

In order to improve the quality and facilitate the removal of the finished product in the proposed machine, the heads are made turning by an angle of 180 ° independently of each other, and the mandrel is movable in the axial direction, for example, by means of a pneumatic cylinder mounted in the table.

FIG. 1 shows the proposed machine, a longitudinal section; in fig. 2 - the same plan view.

The machine consists of a stationary table 1 with an eccentric clamp 2 installed in it and a mandrel 5, designed as a movable plunger connected to a vertical movement drive, for example, a pneumatic cylinder 4. The table is fixed on the column 5, which is the axis of the two swivel brackets 6 with the drives 7 .

The brackets are fixed calipers 8 with bending rollers 9 installed in them, making radial movement from the actuators 10.

The machine works as follows.

The workpiece // is fed to the machine table and pressed onto the mandrel by an eccentric clamp, while the brackets with calipers and bending rollers are in the initial position shown in FIG. 2

When the brackets are turned, the bending rollers begin to bend the workpiece around the mandrel, while one of the rollers is rotated with greater speed than the second, and, having curved half of the workpiece, is retracted to its original position. The second roller, having carried out the bending of the other half, performs a running-in of the joint, after which it returns to its original position. At the end of the process of bending-running

the mandrel 3 is lowered below the level of the table plane when the pneumatic cylinder 4 is made, and the product is freely removed from the machine, the mandrel is returned to its original position.

25

Subject invention

Flange making machine, containing a table with a mandrel located on it

30 for bending and bending heads having

the possibility of radical movement and rotation around the mandrel, characterized in that, in order to improve the quality and facilitate the removal of the finished product, the heads are made turning at an angle greater than 180 °, independently of each other, and the mandrel is nodvizhnoi in the axial direction, for example, using pneumatic cylinder mounted in the table.

/ 2 ////////// /////////////////

11 9 I