SU382096A1 - COMPUTATIONAL DEVICE FOR DETERMINING INSTALLATION GEOMETRIC PARAMETERS - Google Patents

Description

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The invention relates to computing devices for determining mounting geometric parameters, in particular, for determining the initial displacements of the working members of metalworking machines in the manufacture of cutting tool teeth, such as cutters, drills, countersinks, reamers, etc.

Computational instruments for determining installation geometrical parameters are known, which contain a sector with an angular scale and: a nonius engine, a linear scale bar rigidly fixed along the sector chord, a vernier slider moved along the ilanca, mounted in a slider in the sector plane perpendicular to the bar movable interchangeable pins.

The proposed device differs from the known one in that it is provided with a second bar fixed rigidly along the sector parallel to the bar with a linear scale interlaced along this bar with a second vernier slider, a goniometer whose sector is rigidly mounted on the second slider, a second ruler mounted movably in the goniometer slider , and the second protractor, the engine of which is movably mounted on the second ruler, and the sector is provided with a pointer.

This implementation of the computing device allows you to determine the initial displacement

working bodies of metalworking machines in the manufacture of teeth cutting tools.

The drawing shows the proposed computational device.

The device contains a sector 1 with an angular scale and a vernier engine 2. On the sector along its chord and diameter two ilans 3 and 4 are rigidly fixed with linear scales, and

the strap 3 is fixed above the strap 4 on the uprights 5. On the strap 5 there is a slider 6 being moved along it with a nonius, and in the slider a movable ruler 7 is installed in the sector plane and perpendicular to the slat

with interchangeable pins 8.

On the plaik 4, the Jeremiah aamyp along this elaika is installed the second slider 9 with a vernier, with which the goniometer 10 is rigidly fastened 10. In the slider of the protractor 10 iodvizno

a second ruler 11 is installed, on which the slider of the second protractor 12 is also iodvily mounted. The sector of the protractor 12 is provided with a pointer 13. The device works as follows.

All angular and linear scales are aligned with zero marks. For given values of the rake angle v is the number of teeth Z, the chamfer f of the tooth and the diameter D of the tool being cut, for example a disc one-sided

cutters on the sector / 2 set the value of the front angle y. Then move the slider 9 on the strap 4 until the combination of the ruler 11 with the sector / value of the rake angle is set. The offset of the slider 9 along the strip 4 is measured on the scale of this strip and will be equal to the desired horizontal offset S, for example, of the table of the milling machine.

To determine the vertical displacement of the table, the angle a of the taper of the machining tool, for example a one-angle cutter, is set on the protractor 12. Then on sector 1 engine 2 set the angle

- -. f

-I - I

Where

  360 °

Z

Next, the protractor 12 is moved along the ruler // so that the pointer 13 coincides with the value of the angle 61 deferred by the slider 2, and combine the pin 8 with the pointer 13 and the line 11. In this case, the offset of the ruler 7 relative to the slider 6 will be equal to the vertical offset of the milling table I machine tool. The obtained values of the 5 and H offsets are recalculated taking into account the Masibab:

5 5- and H, H-, 2R2R

where R is the radius of the iribor sector.

The diameter of the pin 8 is selected depending on the radius of rounding of the tip of the machining cutter and also taking into account the scale.

With the same parameters set, but for a three-sided disk milling cutter, the ruler // on the protractor 10 is rotated by angle 0, which is equal to the small angle of the two-angle machining cutter. Engine 2 lay on the sector / device angle +9 n move the slider 9 so that the ruler // is combined with the delayed on the sector / value of the angle y + c. On the protractor 12 set the pointer so that the pointer and the ruler 11 form an angle of cone cone processing

cutters. On the sector / engine 2 set the angle

s; e- (i-f 9) -f.

The protractor 12 is moved along the ruler 11 so that the pointer 13 coincides with the value of the angle g 1, deferred by the slider 2, and the pin 8 is aligned with the intersection of the pointer 13 and the ruler 11. In this case, the offset 5 is determined by the slit 5, and the offset I by the scale of the ruler is 7. The obtained values of S and I are also recalculated taking into account the scale. The described device can be applied

for determining the initial displacements of the working parts of machine tools in the manufacture of both straight and spiral teeth of cylindrical or conical cutting tools, in particular mills, using

cutting teeth of single-angle, two-angle or shaped machining cutters.

Subject invention

Computing device to determine

geometrical parameters, containing a sector with an angular scale and a vernier slider, a bar with a linear scale rigidly installed along a sector chord, a slider with a vernier moved along the bar,

a movable ruler with replaceable fasteners mounted in a slider in the plane of a sector perpendicular to the slat, characterized in that, in order to determine the initial displacements of the working members of metalworking machines in the manufacture of cutting tools teeth, it is equipped with a second plank with a linear scraper fixed by the sector diameter, moving along this bar

a second slider with a nonius, a goniometer, the sector of which is rigidly mounted on the second slider, a second ruler, which is movably mounted in the slider of the goniometer, and a second goniometer, whose slider is movably mounted

on the second line, and the sector is equipped with a pointer.