SU1462607A1 - Apparatus for cutting pipes - Google Patents

Abstract

The invention relates to the processing of metals by pressure and can be used in mechanical engineering for cutting work on billets. The purpose of the invention is to twist the quality of the cut. The device contains a faceplate 4, a lever 6 fixed on the spindle 3 so as to rotate in the plane perpendicular to the axis of the hapindle, a disk knife 7 fixed on the lever 6, there is an Asynchronous head spindle 3 mechanism and a faceplate 4 and a pipe clamp mechanism 5 mixed on the axis of the faceplate 4 parallel to the spindle 3. The lever 6 is wicked in the form of a ring mounted coaxially with the extruder of the spindle 3, which is made with an eccentricity to its axis of rotation. On the eccentric surface of the spindle 3, a stop is installed, which interacts with the surface of the groove of the lever 6, which is made on its inner surface. The length of the groove is determined from the condition of ensuring the stroke of the arm relative to the spindle by 180 On the outer surface of the lever 6 and the plate 4 performed additional stops interacting with each other. The axis of the knife 7, the lever 6 and the faceplate 4 are located in the same plane. The axis of the lever 6 is located between the faceplate and leather. 1 hp f-ly, 3 cells

Description

The invention relates to the processing of metals by pressure and can be used in mechanical engineering for cutting pipes into dimensional workpieces.

The purpose of the invention is to increase the ca-. honest cut.

Figure 1 shows the described device, a General view; FIG. 2 is a section A-A in FIG. FIG. 3 is a cutting scheme;

The device for cutting pipes consists of the body 1 of the mechanism 2 of asynchronous rotation of the spindle 3 and the plate 4, the mechanism 5 of the clamping of the pipe, placed along the axis of the faceplate 4 parallel to the spindle 3, and the ring arm

; fixed on it with a disk knife 7. The mechanism 2 of asynchronous rotation makes it possible to rotate spindle 3 faster than faceplate 4, the console end of spindle 3 is made with eccentricity e relative to the axis of rotation.

The stroke of the circular knife during the cutting cycle relative to the pipe being cut is determined from the formula

L K + ut + S,

taking K ---, we get the value of eccentricity

t

 At.

and

ABOUT)

g

At the eccentric end, the spindle 3 is mounted with an annular lever 6, which can oscillate 180 degrees perpendicular to the axis of rotation along the eccentric surface of the spindle. The link pin 3 and the lever b is made through the spiral return spring 8 and the stop 9 of the extreme position fixed on the spindle 3 and the slide in the groove of the lever b during its oscillatory motion relative to the spindle 3 from the end of the groove to the other, the groove in the lever b around the ring, equal to half the diameter. On the arm b, a slider 10 with a disk; a knife 7 is installed. The slider 10 allows you to install disk-shaped holes of various diameters after regrinding, moving radially to the pipe using a screw mechanism. The gap between the cutting edge of the knife 7 and the pipe being cut. 11 it

is equal to -2

From the opposite

side slider 10 is set to counterbalance} 2 to balance the various disk nocks. On the faceplate 4 is the stop-dog 13, which can engage with the ledge b. The doggie 13 has a spring 14 which exceeds the force generated by the return spring 8 when it is twisted by 1B (f, the knife axes 7, the lever b and the faceplate 4 are aligned, the axis of the lever b is between the axis 4 meters of the knife 7 ,

The device works as follows.

Faceplate receives rotation from the electric motor. Through the mechanism 2, the spindle 3 rotates, along with it the pin b. Spindle

L Z. Disc Knife 7 describes a tangential trajectory with respect to the Tube (a copy of the eccentricity of the spindle), characterized by a small radial component of the cutting force. A cut is made. Lever b, turning the spindle 3 relative to the spindle 3 by 180, rests against the end of the groove at the stop 9, clears the stop-soyachk 13. and under the action of the spring 8 catches up with the gimmand, becoming the starting point and pressing the other end of the groove K the stop 9. .

Then the cycle repeats.

Claims (1)

1. A device for cutting pipes, holding the faceplate, a lever fixed in the spindle so that it can be rotated in the plane, perpendicular to the axis of the pindel, a disk knife fixed on the lever, a mechanism for asynchronous rotation of the 25th spindle and faceplate and a clamping pipes placed along the axis of the faceplate parallel to the spindle. distinguished by the fact that, in order to improve the cut quality, the end part of the spindle in the mounting area of the lever is eccentric relative to the axis of rotation of the spindle and provided with a fixed on the eccentric surface The stop lever is made in the form of a ring mounted coaxially with the eccentric end part of the spindle, on the inner surface of the ring there is a groove for accommodating the specified one. The stop can be rotated 180 °, additional stops are arranged on the outer surface of the lever and the face plate with one another 35 40 3 and the lever b are rotated several times along the axis of the disk knife, the ring and the reamer of the faceplate 4. and are located in a certain precision plane in one flat lever b engages with the stop dog 13, the lever b is decelerated relative to the spindle 3, which continues to rotate with its speed, squeezing the spring with 8 and advancing the stop 9 from the swing position in the groove of the lever га g into the final one. Lever 6 slides: yo eccentric surface. Spindle- g50 bone, with the axis of the ring located between the axis of the La ligdaiba and the circular knife, 2 ,, Device pop, 1, characterized in that the circular knife is fixed on the lever with a bb. Possibility of adjusting movement in the radial direction. This axis of the disk knife, ring and planiby are located in one plane 50 bone, with the axis of the ring located between the axis of the La ligdaiba and the circular knife 2 ,, Device pop, 1, characterized in that the circular knife is fixed on the lever with a bb. Possibility of adjusting movement in the radial direction. "City / Phage.Z