SU405694A1 - COMPOSITION STOP - Google Patents

Description

FIELD: machine tool industry.

Known composite bursts with a preliminary set of values are necessary for machine-controlled machine tools.

However, these unors are complex and require making them of a high accuracy class.

The purpose of the invention is to eliminate the effect of errors of rotational drive drives with measuring rods.

For this, the working ends of the measuring rods are made in the form of cylindrical surfaces, the diameters of which correspond to a given number of numbers.

FIG. 1 shows schematically the description of the stop, general view; in fig. 2 is a section along A-A in FIG. one.

Unor consists of identical construction blocks 1, 2 and 3 with measuring rods 4, which roll to the disks with 5 nuts 6 and screws 7. Such fastening makes it possible to adjust the axial position of the rods 4. Twenty-two are mounted on each of the three disks 5 diametrically located dimensional rods. The working end surfaces 8 of the rods 4 are made in the form of cylindrical surfaces with an axis that coincides with the axis of rotation of the disks 5. For the first block there is a numerical series of values of the diameters of the end faces.

surfaces 8 coaxially spaced stops has a spacing of 10 mm.

For example, the diameter C is larger or smaller than the diameter B (Fig. 2) by 10 mm, respectively, for the second block this interval is 1 mm, for the third block 0.1 mm.

Thus, the first block sets the dimensions from zero to 100 mm with an interval of 10 MM; the second block is from zero to 10 lsh with an interval of 1 mm, the third block is from zero to I mm with an interval of 0.1 mm.

The combination of rods 4 of the entire composite stop can be set to any size from a series of numbers from zero to 111 mm with an interval of 0.1 mm.

For rotation of discs with stops, self-locking worm gears 9 are used, driven by small electric motors 10 attached to block housings. Melsdu blocks are springs 11, which return the mechanism to its original position.

But the signal from the control panel, on which the required number is set by the program, the electric motors 10 start to work, which rotate the disks 5 with the rods 4 through worm gearboxes. When installed, the electric motors turn off according to the programmed number of the corresponding measuring rods along the longitudinal axis 12 .

The movable stop 13 displaces the entire system of blocks to the right until all the rods mounted along the 12 axis touch each other and with the fixed stop 14. Thus, the distance between the working end of the movable stop 13 and the working end of the fixed stop 14 will be equal to the specified size plus a constant for a given software stop, the values depend on the parts of the mechanism included in the mechanism. The cylindrical thrust surfaces 8 eliminate the influence of the inaccuracy of the installation of the rods along the axis 12 from the inertial forces and the frictional forces in the drive.

With a slight overrun or underrun during the rotation of the disks 5 at the corresponding positions, the rods are in contact on surfaces with the same diametral size. The accuracy of the installation of a given size depends only on the accuracy of the surfaces of 8 rods 4.

At another given size, the movable stop 13 and the blocks 1.2 VI 3 return to their original position and the cycle of operation of the mechanism is repeated.

Subject invention

Composite support for machine tools with programmed control, made in the form of rotating discs with dimensional rods fixed to them, the dimensions of which correspond to a given number of numbers, characterized in that, in order to eliminate the effect of rotational disk drives error, the rods the ends of the lugs are made in the form of cylindrical surfaces, the diameters of which correspond to a given number of numbers.

FIG. one