SU761168A1 - Apparatus for cutting square tubes - Google Patents

Description

The invention relates to the processing of metals by pressure and can be used for cutting rectangular pipes and columns.

A device for cutting rectangular pipes, containing a pipe clamping mechanism, made in the form of a rectangular split frame, a carriage _} bearing cutting tool, and a cut feed mechanism [ΐ] are known.

However, this device has a low productivity when cutting large-sized pipes, since it is necessary to cut it on each side of the pipe.

The purpose of the invention is to increase productivity by ensuring the cutting of the pipe without turning.

To do this, the device is equipped with additional carriages, additional cutting tools placed on them. but . additional feed mechanisms for the cut, with the carriage and the feed mechanism for the cut mounted

2

on one side of the frame, and additional

carriages and additional feed mechanisms to cut on the other three sides of the frame.

Each cut feed mechanism is made

in the form of pushers placed on the carriage, eccentrics mounted on

frame can be rotated in one

direction when interacting with the pushers, and the clamping bar, located in the guides of the frame and mutually ¹⁰ acting with the carriage.

FIG. 1 shows the proposed device; in fig. 2 - also, top view; in fig. 3 - section A-A of FIG. one; in fig. 4 - carriage with cutting tool; Fig 5 is also a top view; in fig. 6 is a section BB of FIG. 2

A device for cutting rectangular pipes contains a pipe clamping mechanism, made in the form of a detachable rectangular frame 1, a carriage 2, a carrier cutting tool 3, a feed mechanism 4 for a cut, additional carriages 5 _; carrying additional cutting tools 761

cops and additional mechanisms 6 filing for cut '.' The “this" “K” arch “2 ^ nd” mechanism 4 feeds to the cut are mounted on one side of the 7th frame, and additional carriages 5 and additional feedings 6 mechanisms to the cut on the other three sides of the frame 1.

Each feed mechanism to the cut is filled with pushers 8 placed on the carriage 2 or 5, eccentrics 9, _]

mounted on the frame 1 With the ability to rotate in one direction when interacting with the pushers 8, and the clamping bar 10 located in the guides 11 of the frame 1c the possibility of movement and interacting with. carriage. Plank 10 is moved in ¹ right way by means of projections 12 or pins.

The frame 1 is made detachable in dia ₂ θ gonat and is equipped with an articulated plug 13 with 'nodes 14 and 15 fastening the rods of the power cylinders (not shown) for the information of the frame. To compensate for the inaccuracies of the dimensions of the frame 1 and the pipe being cut 25, elastic gaskets can be installed on the inner edges of the frame.

The carriage has a shank 16, which passes through the sleeve 17, the spring ₃₀ 18 and is fixed by a nut 19. The sleeve is connected by means of the power cylinder 21 / for example, by moving the carriage by means of the sleeves 20, fixed '' / '''' ....... '' ₃₅

The eccentrics 9 are mounted on the frame "by means of ramming shreds" and have a serrated knurling at the point of contact with the pushers 8. Each cutting tool 3 is made in the form of two ₄ θ grinding rollers.

The device works as follows. .......... _ν .. ί λ. ..... '. „.' .. mm .'........

In the opened ⁷ position of the frame 1 diagonally, the device also diagonally _{connects the} rectangular tube ₄₅ with the aid of a rod and directs it towards the tube and covers it. At the same time, the cutting tools 3 are flush with the edges of the body 1, as the eccentrics 9 mini- ₅ θ have mole radii in the direction of the clamping strips 10, and the spring 18 through the nut 19 and; the shank 16 together with the carriage 2 and the presser bar 10 retracts the cutting tools in, ₅₅

21 second cylinders, which follow ** ”“ Lost one after the other in a circle, serve

pressure hydraulic systems move their

rods and through thrust 20 sleeve 17 per

168 4

the shank 16 moves the carriage 2 with ΐ cutting tools to the extreme I position so that one of the cutting tools passes over the corner of the pipe. The pusher 8 runs onto the gear rolling of the eccentric 9. Then into the power cylinders; The engines 21 also change the pressure of the hydraulic system in the reverse order, the carriages return to the initial position, and then the mechanisms move in another Direction, the carriages 2 'Overlap from one extreme position to another extreme position. Starting the movement from the extreme position, the pusher 8 with its tooth engages the tooth of the eccentric 9 and turns it at a certain angle, while it “with its varying radius runs onto the pressure bar 10 and re-moves it a little to the side of the pipe being cut. The clamping bar 10 moves the carriage 2, which moves the cutting tools 3. The latter go deep into the surface layer of the metal of the cut pipe. '

In this way, multiple changes are made in the direction of pressure of the hydraulic system into the power cylinders 21, at each stroke which leads to longitudinal movement of the cutting tools and their deepening into the metal of the pipe being cut to its full length. The depth of re-, depending on the type of pipe and permissible inaccuracies of its geometric shape is determined by the diameters of cutting tools and eccentrics 9.

The proposed device improves productivity when cutting rectangular / pipes.

Claims (2)

Claim 1. A device for cutting rectangular pipes, containing a pipe clamping mechanism, made in the form of a rectangular split frame, a carriage carrying a cutting tool, and a feed mechanism for cutting, are distinguished by the fact that, in order to increase productivity by / ensuring cutting the pipe without turning, it is equipped with additional carriages, additional cutting tools placed on them, as well as additional feed mechanisms for cutting, and the carriage and feed mechanism for cutting are mounted on one side of the frame, and additional aretki and additional mechanisms' -zg 5 761168 6 filing at times on the other three sides of the frame. ' 2. Device by π. 1, that is, that each feed mechanism for the cut is made in the form of a pusher, eccentrics mounted on the frame, which can be rotated in one direction when interacting with the pushers, and the clamping ¹ yanky located in guides of a frame with a possibility ^ of movement and interacting with the carriage. five