SU1738479A1 - Cutter with mechanically fastened cutting plate - Google Patents

Abstract

The invention can be used for turning. At the end of the holder 1, screws 3 fix a clamp 3 which has a through-hole 4 with a thread in the upper part, smooth in the lower part. A stop screw 5 is installed in the threaded part of the hole 4, a protrusion 7 is placed in the smooth part of the hole 4, on which the spring 6 acts, with its other end abutting against the stop screw. The protrusion 7 acts on the recess on the front surface of the cutting plate 2 and fixes it in the seat of the holder 1. When replacing the cutting plate 2, the protrusion 7, compressing the spring 6, goes into the hole 4. 2 Il.

Description

FIG. one

The invention relates to mechanical engineering and can be used in turning.

A known cutter with a mechanical fastening of a cutting plate comprising a holder, in the slot of which a cutting plate is installed with a recess on the front surface intended to interact with the protrusion on the tack, the clamping being made spring-loaded and fixed with a screw on the upper end of the holder.

The disadvantages of the known cutter with mechanical fastening of the cutting plate is the reduced productivity, due to the need to loosen and tighten the fastening screw to replace the plate.

The purpose of the invention is to increase productivity by speeding up the plate replacement process.

This goal is achieved due to the fact that the fixing of the cutting plate with a recess on the front surface in the seat of the holder is made by clamping it fixed to the upper end of the holder with a screw. The grip has a combined hole: from the bottom - smooth, and in the upper part - threaded. A stop screw is screwed into the threaded part, against which the spring rests, with its other end acting on the protrusion identical to the surface of the recess on the cutting plate and fixing it.

 Figure 1 shows the cutter with the mechanical fastening of the plate, section; figure 2 - view And figure 1.

The cutter with the mechanical fastening of the cutting plate consists of a holder 1, in the slot of which a cutting plate 2 is installed with a recess on the front surface. Fastening the cutting plate 2 is made by clamp 3. containing a combined hole 4 with a thread in the upper part and smooth at the bottom. In the threaded upper part, a stop screw 5 is installed, at the end of which rests the spring 6, with its other end acting on the protrusion 7. the surface of which is identical to the surface of the recess on the cutting plate 2. The clamp 3 is fastened with screws 8 on the upper end of the holder 1.

The mounting of the cutting plate 2 in the cutter is carried out as follows. At the moment of the absence of the cutting plate 2 in the seat of the holder 1, the spring 6 is in the unclenched state and the protrusion 7 rests against the base plane of the slot under the cutting insert 2 in the holder 1. When inserting the cutting plate 2, it presses on

the spherical surface of the protrusion 7 and the latter rises, compressing the spring b and thereby passing the cutting insert 2 into the seat of the holder 1. At the moment of coincidence

recesses on the front surface of the cutting plate 2 with a protrusion 7. under the influence of the spring 6, the protrusion 7 emerges from the smooth part of the hole 4 in the clamp 3 and presses the cutting plate 2 to the base

0 surface nest holder 1.

Replacement is as follows.

The horizontal cutting plate 2 is pulled out of the holder holder 1,

5, the protrusion 7 compresses the spring b, withdrawing upward into the smooth part of the hole 4, after releasing the protrusion 7, the spring 6 expands and the protrusion 7 abuts against the base surface of the socket in the holder 1. Shank

0 of the protrusion 7 provides communication with the spring, 6. Due to the fact that a combined through hole with a thread in the upper part is made in the tack and a smooth screw is installed in the lower part, the stop screw is installed in the threaded part, at the end of which a spring rests, with its other end acting on the protrusion the lashing plate is carried out

0 the ability to move the spring-loaded protrusion up and down, under the influence of the inserted and removable cutting plate, without additional mechanical effect on the sticking that in its

Turn 5 allows to increase productivity while ensuring reliable fixation of the cutting insert.

The proposed cutter improves productivity by speeding up the process.

0 replacement plate.

Claims (1)

Claims of the invention With a mechanical fastening of the cutting plate, containing a holder, in the slot of which a cutting plate is installed with a recess on the front surface intended to interact with the protrusion on the strap, fixed with a screw on the upper end of the holder, and the spring, while the surface of the protrusion is identical 0 of the surface of the recess, characterized in that, in order to increase productivity by accelerating the process of replacing the plate, a combination hole is made on the sticking 5 thread in the upper part and smooth in the lower part, and the cutter is equipped with a stop screw placed in the threaded hole, and the protrusion is placed in a smooth hole of the sticking, with a spring located between the protrusion and the end of the stop screw. Bu / uh i