SU893412A1 - Apparatus for cutting cylinder billets - Google Patents

Description

(54) DEVICE FOR CUTTING CYLINDRICAL

PREPARATION

I

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

A device for cutting cylindrical blanks is known, which contains a drive faceplate, mounted therein with the possibility of rotation of a crank, at the ends of which cutting discs are mounted, as well as a hydraulic actuator of rotation of the cranks 1.

A disadvantage of the known device is its complexity caused by the necessity of using a planetary mechanism for transmitting rotation from the hydraulic drive to the cranks.

The purpose of the invention is to simplify the design.

The goal is achieved by the fact that in a device for cutting cylindrical billets, containing a drive faceplate, installed in it rotatably cranks, at the ends of which cut-off discs are mounted, as well as a hydraulic actuator for turning the cranks, the crankshaft mounted on the faceplate with shafts cranks, with each shaft of the motor and the corresponding crank is made in one piece.

FIG. 1 shows a device, a general view; in fig. 2 is a section A-A in FIG. one; in fig. 3 - section B - B in FIG. 2; in fig. 4 — device, longitudinal section.

The device contains a faceplate 1, mounted on the hollow shpindle 2, inside which wiring 3 is placed for the workpiece 4. Inside the faceplate 1 in the housing 5 at least two blade-type hydraulic motors 6 are mounted, separated by an insert 7, in which channels 8 and 9 are made .

The blades 10 of the hydraulic motors 6 are mounted rigidly on the cranks 11, on the output ends of which the cutting discs 12 are mounted.

In plate 1, channels 13 and 14 are made, which coincide respectively with channels 15 and 16 of spindle 2.

Claims (2)

On pin 2, a housing 17 is mounted, carrying a double-acting distribution sleeve 18, having channels 19 and 20, which coincide with channels 15 and 16 of the spindle, respectively. 2. The housing 17 provides channels 21 and 22 for supplying fluid to the distribution sleeve 18. The lubricator 23 is mounted on the housing 17 to fill the gap between spindle 2 and distribution coupling 18 with refractory grease, preventing the latter from heating and preventing leakage of fluid. The device works as follows. V-belt drive (not shown) plate 1 and spindle 2 are rotated. Together with them, the housing 5 mounted in the faceplate, the insert 7, the hydraulic motors 6 and the cutting discs 12, which make the rolling motion around the cut product 4, rotate. The cutting discs 12 are maintained in their initial angular position due to the flow of fluid through the channels 22, 20 , 15, 13 and 8 into the working cavities of the hydraulic motors 6. To cut the product, fluid is supplied through the air distributor to the channel 2, channels 19, 16, 14 and 9 into the working cavities of the hydraulic motors 6, turning the blades 10, and with them the cranks 11 carried out The barrel feed (in an arc) of the cutting discs 12 and thereby producing a cut of the product 4. The working cavities B of the hydraulic motors 6 are connected via channels 8, 13, 15, 20 and 22 with a fluid distributor (not shown). Instead of hydraulic motors, pneumatic motors can be used in the device. The device has a simple design. Apparatus of the invention for cutting cylindrical billets comprising a drive plate, mounted therein to rotate a crank, at the ends of which cut-off discs are mounted, as well as a hydraulic drive for turning the cranks, characterized in that, to simplify the design, the hydraulic drive for turning the cranks is designed as installed in the faceplate of motors with shafts ON the number of crankshafts, with each shaft of the hydromotors and the corresponding crank made in one piece. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 329963, cl. B 23 D 21/04, B 26 D 3/16, 08.04.70. / 7 (rig f at 12 R (Reg. Z 1B (Riga.Z