RU70180U1 - KNIFE - Google Patents

Abstract

The invention for a utility model relates to the processing of metals by cutting, in particular for removing burr (burr) after welding long products with a curved profile (for example, rails). The technical result from the use of the invention on a utility model is to create a knife suitable for processing long products with a curved profile (rails) for stripping after butt welding. As well as increasing the life of the cutting tool, due to the use of interchangeable cutting inserts. The technical result from the use of the invention on a utility model is achieved due to the fact that it is made detachable, equipped with interchangeable plates with cutting edges, the shape of the plates, which corresponds to the outer profile of the processed lengthy product, while the thickness of the interchangeable plate is 15% of the total thickness of the knife, the latter is made of carbon steel, the interchangeable plate is made of austenitic steel, and the cutting edges are made of wear-resistant tool material, while the fasteners are interchangeable the fins to the knife are carried out either by soldering or by fastening by means of countersunk bolts. The knife 1 is detachable and equipped with interchangeable plates 2 with cutting edges 3, the shape of the plates corresponds to the outer profile of the processed lengthy product 4. After welding the lengthy product with the formation of a burr 5, the rail 4 moves along the rollers 6 towards the cutting tool 1. 1 cp formula, 1 z.p. formulas, 3 of FIG.

Description

The invention for a utility model relates to the processing of metals by cutting, in particular for removing burr (burr) after welding of long products with a curved profile (for example, rails).

There is a method of removing flare when processing products with a curved profile (see AS No. 5778184, class B26D 3/00, publ. 1977), which consists in influencing the cutter’s edge when moving the profile to meet it, while the edge is unbent and shift the front surface of the cutting tool.

However, such a flashing removal method is not suitable for processing long products after butt welding, and the knife structure is not disclosed.

The closest in structural essence is a knife (see RF patent No. 2014134, class B02C 18/36, publ. 1994), in which the design is disclosed, but the cutting tool has a different purpose and is not suitable for removing hot burr after welding products.

The technical result from the use of the invention on a utility model is to create a knife suitable for processing long products with a curved profile (rails) for removing burrs after butt welding. As well as increasing the life of the cutting tool, due to the use of interchangeable cutting inserts.

The technical result from the use of the invention for a utility model is achieved due to the fact that the blade of a plate shape with cutting edges is made detachable provided with interchangeable plates with cutting edges, the shape of the plates, which corresponds to the outer profile of the processed lengthy product, while the thickness of the interchangeable plate is 15% of the total thickness of the knife, the latter being made of carbon steel, the interchangeable plate is made of austenitic steel, and the cutting edges are made of

wear-resistant tool material, while the fastening of interchangeable plates to the knife is carried out either by soldering or by fastening with countersunk bolts.

The technical essence of the invention for a utility model is illustrated in the drawing. Figure 1 - detachable profile of a cutting tool (knife). Figure 2 - view A (fastening of the cutting knife to the base). Figure 3 - diagram of the processing of a cutting tool moving along the rollers of the rail.

The knife 1 is made detachable, fixed at the base of the device (the latter is not shown in the drawing). The knife 1 is equipped with interchangeable plates 2 with cutting edges 3, covering the profile of the processed long products (rail 4). In this case, the fastening of the cutting part 3 to the knife 1 is carried out by means of countersunk bolts, which are indicated conditionally on the drawing. Figure 3 shows the place of welding with the formation of burr 5 and the feed rollers 6. The knife is made of carbon steel, interchangeable plates 2 are made of austenitic steel with non-magnetic properties to prevent sticking of hot burr when it is removed. And the thickness of the interchangeable plates 2 is 15% of the thickness of the knife 1. This parameter is selected optimal based on economic feasibility. Replaceable plates 2 are attached to the knife 1, either by means of countersunk bolts or by soldering (in FIG. 2, a method of soldering is indicated).

After welding (see Fig. 3) of the product (rail) with the formation of a burr 5, the rail 4 moves along the feed rollers 6 towards the cutting knife 1, which covers (see Fig. 1) the outer rail profile 4 with its interchangeable plates, the rail profile 4 and the cutting edge 3 cuts off the burr 5, while ensuring the required purity of the workpiece.

The alleged invention is technologically advanced and increases the tool life through the use of interchangeable cutting inserts.

Claims (2)

1. The blade is a plate-shaped knife with cutting edges, characterized in that it is detachable, equipped with interchangeable plates with cutting edges, the shape of the plates of which corresponds to the outer profile of the processed long product, the thickness of the interchangeable plate being 15% of the total thickness of the knife, the latter being made made of carbon steel, the replaceable plate is made of austenitic steel, and the cutting edges are made of wear-resistant tool material. 2. The knife according to claim 1, characterized in that the fastening of the interchangeable plates to the knife is carried out either by soldering or by fastening by means of countersunk bolts.