SU1486214A1 - Method of beading a cylindrical part - Google Patents

Description

The invention relates to the processing of metals by pressure and can be used in the manufacture of beads and grooves under the elastic sealing element on the pipe end. The purpose of the invention is the expansion of technological capabilities due to the formation of the calibration sides and grooves on the outer surface of the workpiece 1. For this, in the method of manufacturing a cylindrical part with a side (B) 14 by axial impact, the tool (I) 2 on the rotating workpiece 1 is initially pierced through the outer surface of the workpiece 1 and groove 13. After that, the impact And 2 form a mountainous B 14. After further movement, -A 2 along the workpiece 1 form B 15 grooves 13, B 15 calibrate force th exposure and 2 during its return stroke. In this case, localization of the deforming force is prevented. 2 Il.

fi & 1

80 ,,,, 1486214 A1

3

1486214

four

The invention relates to the processing of metals by pressure and can be used in the manufacture of beads and grooves under the elastic sealing element on the end of the tube.

The purpose of the invention is the expansion of technological capabilities due to the formation of the calibration sides and grooves on the outer surface of the cylindrical billet.

Figure 1 is given a device in the process of obtaining the bead, a general view} in figure 2 - calibration of the bead of the groove

• during the return stroke of the tool.

The pipe 1 of plastic, for example, aluminum alloy, clamped in the lathe chuck (not shown). The tool 2, containing the cutting part 3, the front deforming part 4 with the top 5, calibrating 6, 7,

8 and the deforming surfaces 9 and the rear part 10 provided with the deforming 11 and the calibrating 12 surfaces are set so that the back surface 8 is located from the axis of rotation of the pipe 1 at a distance equal to the radius of the groove 13. The front edges of the deforming surfaces

9 and 11 are rounded by radius.

\ When the pipe 1 rotates and the tool 2 is fed along its generator, the outer surface of the pipe 1 is preliminarily cut with the cutting part 3, then the deforming surface 9 acts on the peripheral part of the pipe 1 end. 6. Upon further movement of the tool 2 along the pipe 1, the deforming surface 11 acts on the inner part of the pipe 1 end and bends the back side 15, the outer diameter of which th restricted surface gauge 12. The surface 8 calibrates the surface of the groove 13 of refusing increase its diameter from

longitudinal force during the formation of the rear side 15. The front part of the side 15 is calibrated by the surface 7

$ by feeding tool 2 along

forming pipe to the board, at a distance C calculated depending on the width of the groove 13 and on the width a · of the cutting part 4, as well as on the size (0 pa δ "of the deforming part 10. Only after the side 15 of the groove is calibrated by the reverse stroke of the tool 2 does it pipes in the radial direction.

15 ₍ The advantages of the method lie in the possibility of using structurally simple devices and technologies for the processing of metals by pressure in the manufacture of beads and grooves for up20) Another sealing element on

pipes due to localization of the deforming force and simultaneous calibration of the surfaces of the product and, consequently, increase the accuracy

25 processing products pressure.

Claims (1)

Claim A method of manufacturing a bead on a cylindrical part by axial action of the deforming force of a tool on a rotating workpiece, characterized in that, in order to expand technological capabilities due to the formation of calibrated sides and a groove on the outer surface of the cylindrical workpiece, the external surface on rotating tubular billet, after che. The impact of the deforming force of the tool on the peripheral part of the end of the billet form a toroidal bead and a groove on its outer surface, and with further movement of the tool along the billet by force action on the frontal part of the billet form the bead of the groove, which is calibrated by the force action of the tool during its reverse. 1486210 fi? 2