SU59498A1 - Stamp for cutting off pipe ends at an angle and along a curved line - Google Patents

Description

Nowadays, in all tubular structures, various brackets, struts, rods and other parts, their ends are sawn into various radii by hand using templates or are milled on milling machines, which of course requires a lot of time and tools like cutting, and auxiliary. After such processing, the part requires further operations: removing burrs (after milling) and fitting the part in place (after filing it in a pattern). These operations of processing the ends of pipes at an angle or along a curved line can be performed, however, with the help of a special stamp, which will save working time and expense of the cutting and auxiliary tools. For this, according to the invention, the die matrix is provided with a hole extending into the socket intended for the punch and serving for inserting into it a chop pipe with a core inserted into it. In FIG. 1 and 2 show a side view and a top view of the proposed chip for cutting pipes along a curve using a round punch; FIG. 3 and 4 - two projections of such a punch; FIG. Figures 5 and 6 are a side view and in terms of a stamp for cutting pipes at an angle of a straight line; FIG. 7 and 8 are two projections of a punch for this stamp. The stamp consists of a matrix 2 (Figs. 1 and 2), to which, with the aid of bolts 5, a bracket 3 is attached with an Aa part at an angle to the surface of the matrix. The end of the latter is made in the form of two ears 12. With the help of the control pin 4, the clip 3 is set in the correct position with respect to the matrix. In Matrix 2 there is a nest II in which a punch 1 is inserted (Figs. 3 and 4). A sloping hole 10 enters the socket 11 and serves to pip the pipe to be chopped therein. The latter is put on for this purpose on the thinned part of the core b up to the stop in the thickened end 6a, which passes through the cracker 8, which is located between the lugs of the 12 part. The length of the bracket depends on the length of the pipe being cut; depending on the needs of such brackets there may be a necessary set.

After the pipe with the core 6 inserted into it is inserted into the hole 10 of the die 2, it is chopped off by the core 1.

In the embodiment of FIG. 5, b, 7, and 8 part of the bracket 3, in accordance with the purpose of the stamp, cut the pipes in a straight line not inclined, but at the right angle to the matrix 2.

Punch 1 has rectangular shapes: as well as slot 11 for it, there is an IB matrix 2.

In order to be able to cut the pipe at an angle at both ends, the head of the core 6 of the core 6 is made with a bevel i at the desired angle.

The rod 7 is fixed in place after the core is inserted into the head of the core, using the pin 4.

In the device, the device and the action are the same as in the embodiment according to FIG. 1 and 2.

The subject matter of the invention.

A die for cutting off pipe ends at an angle L in a curved line, characterized in that the die 2 has an opening 10, which extends into the socket 1I intended for punch 1 and serves to insert a chopped pipe into it with a core inserted into it.

FIG. 10

// h

IgZ, Fig4

FIG B

 I f ..,

LT

ba

fig7