SU154142A1 - - Google Patents

Description

Grinding machines for grinding the surface of the length of the pipe of an infinite abrasive lepto, one branch of the KOTOpoii price line through the cavity of the rotating pipe and attaches to the processing: o1 of the surface with an elastic elemental with BUNTjicJiHcii is ineffective; Kagisra, making in the;; spine of the pipe ;;; returning the 1-th leg of the patent movement, and not provide a constant pressure of the augurine element in all sections of the pipe.

In addition, when operating such machines, the abrasive tape is twisted.

In the proposed 1 machine; a; ev; atic chamber of the uruguic element is made in the form of a woven tissue, reinforced with the skin of the larger perimeter, which, in turn, is larger than the largest perimeter of the pipe section.

In order to prevent the abrasive leita from twisting when it enters the pipe, a professional roller can be mounted, perpendicularly perpendicular to the axis of the processed pipe.

FIG. 1 schematically shows a machine; in fig. 2 - clamping element, in section.

The abrasive belt 1 is tensioned between the reels 2 and 5, one of which is tensioned and the other reducible. Rollers 6 are mounted on frame 4 on racks 5; they rotate pipe 7. A shaping roller 8, which does not fit, is perpendicular to the axis of pipe 7, serves for the “NO 154142”

No tape entering the pipe and preventing it from twisting. The bar 5 of the uirugim element 10 is secured between two pairs of rotating rollers 11 and performs a reciprocating and forward motion.

The elastic element 10 is made in the form of a cloth bed 12, no.Menieiii into the leather shell 13. The elastic element is seated on the frame 14, having openings 15 for air intake. The inner element inserted into the tube presses the abrasive tape to the inner surface of the pipe being ground.

As the profile of the pipe changes, but the cross section of the elastic element is compressed or, on the contrary, expanded. The profiling roller 8 prevents the abrasive tape from curling during the pipe rotation.

Subject invention

Claims (2)

1. A machine for grinding the inner surface of a long tube with an endless abrasive belt, one branch of which is passed through the cavity of the rotating tube and pressed against the surface to be treated with an elastic element with an internal pneumatic chamber, which has return-translation movement in the tube cavity, characterized in that the purpose of ensuring a constant pressure of the elastic element in all sections of the pipe when processing pipes with variable sections and thereby preventing the burns of the treated surface and jamming An abrasive belt, the pneumatic chamber of an elastic element is made in the form of a weaver bag placed in the shell of a larger transverse perimeter, which, in turn, is larger than the maximum perimeter of the pipe section. 2. Staple according to Claim 1, characterized in that, in order to prevent the abrasive tape of the rotating tube from twisting when processing it with intrinsic top surface of an oval section, a profiling roller is used for moving the tape into the pipe when it enters the pipe, the adjustable axis of the processed pipe is perpendicular. 7 fff // 9 Fig / ..й32й-; Y 5SH; G s -.rr sssss csaESs: / P tgVv4y.4T T TrTrr, .m.