SU24966A1 - Tool for machining curved surfaces on a lathe - Google Patents

Description

The proposed fixture is intended to accelerate the rough finish of curved surfaces on a lathe, without having to resort to a template every time you check it and not stop for this machine.

In FIG. 1 is a front view of the device; FIG. 2 - its position (when used) with respect to the pattern.

The proposed device consists of a ruler A with divisions, which has an angle B with a slot B at the end for attaching to it with the thumb clamp G of pattern E, which is also equipped with a corresponding slot R. The ruler A can be walked by an I slider carrying a mobile per-, pendicle The ruler D to it is also divided.

The device is used as follows: attaching template E to square B, which requires turning the product, and moving the engine I along the ruler A, and the ruler D in the engine down (according to the drawing) so that the angle of the lower edge touches different points 1, 2 , 3 ... curve pattern (Fig. 2), determined by reference

divisions of both rulers, the coordinates of these points of the curve and write them. According to these readings, the cutter for coarse turning of the product is made in the form of steps in several steps according to the number of measured points of the curve, and for each reception there is no need to stop the machine, and it is enough to turn off only the caliper.

The ledges obtained on the product, the tops of the inner corners of which will correspond to the measured points of the curve (with the necessary allowance), are smoothed in the future by the same cutter.

The subject matter of the invention.

A device for machining curved surfaces on a lathe, characterized by the use of ruler A with an angle C attached to its end, provided with a slit B for fastening a template corresponding to the profile of the workpiece, on which ruler A is placed the slider AND carrying a mobile ruler D serving to mark points of the profile of the processed product.

Fig