SU905011A1 - Abrasive cutting-off machine tool - Google Patents

Description

one

The invention relates to metalworking and can be used when cutting bar and strip materials.

A cutting machine is known, on the frame of which a spindle is placed with a drive for its rotation and a feed mechanism hinged on the frame

However, on a known machine it is impossible to cut blanks whose width exceeds the diameter of the abrasive wheel.

The purpose of the invention is the expansion of the technological capabilities of the machine.

The goal is achieved by the fact that the feed mechanism is made in the pide of two pivotally connected levers, one of which is provided with a lock and the second with a copy finger installed with the ability to interact with the copier inserted on the frame.

FIG. I shows the abrasive cut-off machine, side view (the solid line shows the initial position, the dotted one shows the position at the moment the copier finger approaches the copier ruler, and the dash-dotted line indicates the position of the machine elements at the end of cutting the strip material); in fig. 2 - the same, front view.

Claims (2)

Abrasive cutting machine contains frame 1, support lever 2, pivotally fixed on frame 1, lever 3, pivotally connected at one end to support lever 2 and carrying at the other end a control pin 4 of an adjustable overhang, spiidel 5 n handle 6. At lever 3 an electric motor 7 for rotational rotation of the spindle 5 is fixed. The frame is not, the set latch 8 fixes the position of the support arm 2, the copier bar 9 interacting with the copy finger 4, and the locking mechanism 10 of the material being cut. An abrasive wheel 11 is fixed to the spindle 5. The handle 6 serves as a manual drive of the feed mechanism formed by the levers 2 and 3. The ruler has a side groove for the copying finger 4 and an open spot for entering the finger 4 into the side groove. By changing the offset - the distance between the spindle axis and the surface of the material being cut, it is positioned so that the end of the vertical movement of the abrasive wheel (the entry of the finger 4 into the open part of the ruler 9 coincides with the end of the metal cutting The machine is operating when cutting a strip material as follows: The cut strip is fixed on frame 1 by the clamping mechanism 10, the lever 2 is unlocked, the latch 8 is disconnected, the spindle rotation drive motor 7 and the handle 6 lower the spindle 5 into the strip being cut, slamming it into it with abrasive edge 1 until the copier 4 is lowered onto the open portion of the copier ruler 9. At this time, the lever 3 rotates around its swivel joint with the supporting arm 2. Then the handle 6 moves the spindle 5 across the strip being cut. At the same time, the copying finger 4 enters the groove of the copying ruler 9 and moves along it, ensuring the directed horizontal movement of the abrasive wheel 11 along the entire width of the cut strip. The top shelf of the ruler 9 ensures the force closure of the finger 4 (and, consequently, the entire spindle system), and thereby prevents the lifting - tearing of the abrasive wheel from the cut strip during the cutting process, ensuring reliable operation of the machine. During the transverse movement of the spindle 5, the support arm 2 rotates around its hinge with the base 1, and the lever 3 performs a complex plane-parallel movement similar to the crank of the crank mechanism. After the cut is completed, the spindle 5 returns to its initial position first by moving the handle 6 towards itself, and after the release finger 4 comes out of the groove of the copy guide 9 by moving the handle 6 upwards. The band is then released and, if necessary, the cycle can be repeated. When cutting the strip material of a curvilinear profile, especially when the curvature height of the strip is greater than the working height of the circle, instead of a linear copying ruler, a curved groove copy is installed on the machine that approximates the contour of the strip to be cut. Thus, the abrasive cutting machine provides the possibility of cutting both bar and strip material, the width of which exceeds the diameter of the abrasive wheel. Claims Abrasive cutting machine, on the bed of which is placed the spindle with its rotation drive and feed mechanism, hinged on the bed, characterized in that, in order to expand technological capabilities, the feed mechanism is made in the form of two pivotally connected levers, one of which is equipped a latch, and the second - a copy finger, installed with the possibility of interaction with the copier ruler inserted into the machine and placed on the frame. Sources of information taken into account during the examination 1. USSR Author's Certificate No. 310786, cl. B 24 B 27/06, 1970.