SU430963A1 - CUTTING AND PIPING DEVICE - Google Patents

Description

The invention relates to a machine tool industry and you can find an application in portable machines for threading, cutting, and removing accessories for tube blanks.

A device for cutting threads and pipe sections during processing of non-rotating workpieces is known, comprising a frame, a vice for storing workpieces, a thread and a carved head with a lead, a cutting tool and fur, a cutting tool feeding line.

The purpose of the invention is to improve the quality of processing.

This is achieved by the fact that in the proposed device, the cutting rests are mounted on the front end face of the thread-cutting head on the side of the vice and are connected to the feed mechanism through the non-working thread and cutting head, as well as reducing the size and size of the cutting head. weight of the portable machine. Cutting rails are installed (on carriages driven at the same time by pivotally connected levers with them (turned around an axis using pushers, which are acted upon by an axially bushing, which interact through conical rollers with face bevel gears, the transducer chain ego with a worm. Cherv. k is rotated from a handwheel.

FIG. 1 shows the proposed device for cutting threads and cutting pipes; in fig. 2 is a view 1 along arrow A in FIG. one.

In iKOpnyce / (Fig. 1). On rolling bearings there is mounted a spindle 2, on which the thread-cutting head 3 is attached to the cam. 4 and carrying the cutting cutters 5. And the fascia cutter 6 (Fig. 2). The rolling pins 7 move the thiacs 8 with the product.

The device for cutting off the blanks (Fig. 1) is a worm to 9, seated in an eccentric sleeve 10 installed in the orbit. To enter the screw 9 into engagement with the spur gear // and remove it from the gear and handle J2. The rotation of the worm 9 is carried out by the flywheel 13 (Fig. 2).

The wheel 1} is mounted on the sleeve 14 and on the torus: the price of the klann bevel (face fist). On the spindle 2 are mounted bushings 15 and 16, between which is installed a separator 17.

An eccentric axis f8 is fixed in sleeve 16, carrying roller 19 with a cone generator.

In the openings of the pitch 2 and the threaded slotted head 3, the pushers 20 are mounted, which interact with the lever 21, which sits on the axis 22, fixed in the threading head 3. The lever 21 is pressed against the pusher 20 by means of a spring 23. The spherical end of the lever 2 / enters the hole in the flange 24 of the cut-outs of the carriage 4. The sleeve 15 is standing. Compressed to the bushing 16: the spring: other 25.: K (an extension spring 26 is attached to the oblique wheel 11. The drive is carried out through the worm 27, interacting with a worm wheel, cut into a shinel 2.

The axial movement of the vice 8 is carried out by rotating the gear 28 mounted in the vice relative to the rail 29 fixed in the housing /.

The “cut” and thread of the part is fixed, in thiocs 8, moves axially along with the vice and floats into the rotating thread-cutting holoak 3.

When cutting the workpieces by hand 12, the eccentric bushing 10 is turned, the 1K 9 screw is engaged with the helical gear 11. The rotation of the flywheel 13 rotates around the axis of the swivel wheel 11, which with the help of clan bevels acts "on the rollers 19, axially displacement sleeve 16.

This causes the spring 26 to expand. Through the sleeve 15 and the pushers 20, the movement is transmitted to the lever 21 and the carriage 4 with the cutter 5. After being cut by turning the handle 12, the worm to 9 is disengaged from the spur-wheel // and thanks to the springs 23, 25 and 26 all the details of the mechanism are returned to their original position.

The removal of treads is carried out by axial movement of the clamp 8 with the product to the fixed on the rotating head, the bevel cutter 6.

Subject invention

Claims (3)

1. A device for cutting threads and lengths of pipes 1 when processing nevrashchayushchiesya blanks containing a frame, a vice for fastening and blanks, a thread-cutting head with driven and mounted on it a cutting tool with a mechanism for its supply, characterized in that, in order to improve the quality of processing by feeding the cutting tool through the non-operating area of the thread-cutting head, the cutting tool is installed on the vise side connected with pushers and hinged levers with its feed mechanism, performed in the form of a rotary face cam. 2. The device according to claim 1, characterized in that it is provided with a mechanism for turning off the drive of a rotary face cam, made, for example, in the form of an eccentric rotary sleeve, in the holes | acting on the rotary face cam and movable in the axial direction of the sleeve. 3. A device according to claim 1, characterized in that a chamfering cutter is provided on the thread-cutting head. 20/5 77 / ff GZ 22 2S. ; d 1 A --K / -. feztxiLiil / About.