CS232085B1 - A method of constituting a carbide wafer for soldering to a milling body and a preparation for performing this method - Google Patents

Abstract

The purpose of the invention is to improve the technology of establishing hard metal wafers when soldered to the cutter body and the preparation for performing this method. The essence of the method lies in the fact that a constant and uniform pressure force is applied to the carbide wafer when it is attached to the body of the cutter before soldering, during soldering and during cooling, which is created by the gravitational force converted into a pressure force. The essence of the device is that it has a prismatic-shaped expansion body, the pressure wall of which is adjacent to the carbide plate is rounded from top to bottom along the entire flat bulge, and the wall opposite to it is equipped with a support screw 8 with a setting point, and a bracket is attached to the expansion body at one end from above, which is equipped with a weight at the other end

Description

BACKGROUND OF THE INVENTION The present invention relates to a method of aligning hammers in soldering to a milling cutter body and a jig for performing the method.

In the prior art methods, carbide blades have been established when brazing them to milling bodies and devices and devices for carrying out these methods employing hired elastic elements or screw spacers which, however, at higher temperatures lose the biasing or thrust effect in addition to an unsuitable and obviously undesirable blade. or even falling off the tool body before or during soldering.

These drawbacks are eliminated by the method of setting hard metal sheets during soldering to the milling cutter body according to the invention, characterized in that the carbide tip is subjected to a constant and uniform pressing force when fastened to the cutter body before soldering, during soldering even during cooling. is generated by a gravitational force converted into a thrust force.

The essence of the device according to the invention consists in that it has a square-shaped expander body whose pressing wall adjacent to the carbide tip is top-down over the entire flat, rounded out and the opposite wall is provided with a support screw with locating spike and topped into the expanding body one end fastened bracket, which is provided with a weight at the other end.

The method of aligning the carbide blades during soldering to the cutter body according to the invention achieves a higher uniformity of contact force throughout the brazing process, which in turn affects the performance and result of the brazing technology that requires tight pressing of the soldered surfaces.

232 085 in particular at the time of melting the solder which distances itself before melting the surfaces to be bonded · This applies to any type of soldering, but especially soldering in vacuum or in a protective atmosphere where additional correction of the carbide tip is relative to the cutter body without disturbing the vacuum or protective atmosphere. is cured.

The novel effects of the formulation according to the invention are that it allows to overcome all dilatations during alignment as well as dilatations resulting from thermal expansion during soldering and cooling as they have a constant contact force. Alignment is quick and reliable.

In the accompanying drawing, a specific example of an embodiment of the device according to the invention is shown in two figures. In FIG.

is a longitudinal section of the jig, taken vertically. In FIG.

is a top view of a carbide tip set and pressed against the cutter face of the cutter with the composition of the invention.

The JL 1.1 cutter is inserted into all cut-outs at the cut-out face

1.3 carbide tip 2, pressure expansion body ffc, which is pressed against the carbide tip by pressure wall 4.1. which is inserted into a conical well 6 formed on the back 1.2 of the slot 1.1. The screw has an opening 5.2 in the shaft. Furthermore, in the expander body 2 zvrohu fixing the bracket 2 in the "U ^W with its shorter end · 7.1 7.2 The second end bracket 2 is mounted weight & · '

Before expanding the brazing metal, the expansion body 4 is first inserted into the tapered hole 6 with the tip 5.1 of the support screw 2 and pressed against the carbide insert 2 with the pressure wall 4.1.

The gravitational force of the weight member ^{2, the} bracket 2 OEZ rozplnaoie transmitted to the body 4 and creates thereon tilting moment on the lever as pdsobiaci pressure expansible inch.

Rotation of the support 2 ^may be a screw and plug define a variable width slit for different species and size is otherwise cutters, thereby making universal formulation, the pressing force can be varied by size is otherwise the weights 8 on the bracket 2 ·

Both the bracket 2 and the expander body 4 are made of heat-resistant steel or preferably also of ceramic material.

232 085

The method and the preparation according to the invention can also be advantageously used in electron beam welding.

Claims (2)

OBJECT OF THE INVENTION 1. A method of aligning carbide tips when soldering to a milling cutter body, characterized in that a constant and uniform contact force is applied to the carbide tip during attachment prior to soldering, during soldering and during cooling, by a gravitational force converted to a thrust force; 2. A device for carrying out the method according to claim 1, characterized in that it has an expansive body (4) of prismatic shape, whose pressure wall (4.1) adjacent to the carbide plate? (2) the top has a rounded outwardly rounded shape and the opposite wall is provided with a support bolt (5) with an adjusting tip (5.1) and a bracket (7) is fastened to the expanding body (4) from above with one end (7,1) »Which is provided with a weight (8) at the other end.