SU1752485A2 - Device for profiling pitch try-squares - Google Patents

Abstract

Use: for producing castings of propeller type with variable pitch and overlapping blades. SUMMARY OF THE INVENTION: The device is further provided with several pairs of rollers, frames, brackets and mechanisms for locking and moving the frame, consisting of a screw fixed to the cross bar, a stopper and a detachable nut. The stopper and the detachable nut are mounted in a frame and interact with each other by means of fingers fixed in the separable nuts. 1 h, para. f-ly, 7 ill.

Description

The invention relates to a foundry, namely to rod boxes for producing casting molds and overlapping blades, and is an improvement of the known device according to the author. No. 1502158,

A device for profiling stepping gons with skeletons is known, where using two rollers mounted on a frame and a divider traverse capable of turning around a stand, it is possible to set stepping gons to the desired radius,

The disadvantage of such a device is its low productivity and quality of forming the working surfaces of the core box.

The aim of the invention is to increase labor productivity and quality of the working surfaces of the core box.

The goal is achieved by the fact that the device for profiling step squares with skeletons is additionally equipped with several pairs of rollers, frames, brackets and mechanisms.

for moving and locking the frame, when-: this axis of the rollers is fixed on brackets that are installed in the frame hole, and the mechanism for moving the frame and its locking consists of a screw fixed on the yoke, a detachable nut and a stopper, the detachable nut and the stopper mounted in frame and are arranged to interact with each other through the fingers, fastened to the split nuts.

Such a constructive solution allows to increase labor productivity in the manufacture of the core box and the accuracy of the formation of its working surfaces.

Figure 1 shows the core box from the side of the packing of the rod, a general view; figure 2 - the bottom half of the core box, top view with a local alignment; Fig. 3 is a section A-A in Fig. 2 with a device for profiling; Figure 4 is a diagram of joint manufacturing of the parts of the step square and skeleton, where for the cross section of the characteristic radius S is the depth of the groove

(L

WITH

Xi

ate

Yu

4 00

ate

Yu

the supporting disk, H - the height of the step square, h - the height of the Skelton; Fig. 5 shows a device for profiling; 6 is a sectional view in FIG. 5; Fig, 7 is a view In fig, b,

The rod box contains the lower 1 and upper 2 halves with the corresponding parts 3 and 4 blades made on them, the supporting disk 5 with annular grooves 6, the limiting plate 7, the stepping square 8, which is made integral with the skeleton 9, the mounting brackets 10, the studs 11. The profiling device comprises a post 12, a nut 13, a pivot yoke 14, a frame 15, a fixed 16 and a movable 17 rollers, brackets 18, nuts 19, detachable nuts 20, a frame displace Vit 21, a stop 22, pins 23, a sleeve 24 and forming mixture.

The manufacture (formation of parts of the hills and blades) of the core box is carried out as follows.

Aluminum-cast workpieces supporting discs 5 (2 LUT) are machined. At this time, on the working surface of each disk, from the side of the formation of the slide, annular grooves are pierced on radii equal to the characteristic radii of the distribution of hfg along the length of the blade. On the supporting disk 5, the restrictive plate 7 is mounted in the required place. The steppe squares Skeltons 8 and 9 made together are pre-bent, installed in the slots of the supporting disk 5 and the restrictive plate 7, attached to them by the angles 10 and pre-fastened with studs 11. Due to the non-rigid ™ construction of the Skeleton squares 8 and 9, their upper part is not set strictly along the radius. In order to eliminate this, the rack 12 of the profiling device is attached to the supporting disk 5 by means of a nut 13. The axis of the main rollers 16 is fixedly fixed to the brackets 18 and mounted so that the rotating 1 ester corresponds to a certain radius on the traverse 14 and is indicated by the cheek frame 15, moves along the traverse by means of a nut 0 mounted in the frame and a screw 21 fixed on the traverse. When the roller is installed at the required radius by an eyepatching stopper 22, lifting it to the upper position, the frame is fixed on the traverse and, at the same time, the nut 20 opens through the pallet 23. The bracket 18 is installed in the frame hole 15 and fixed in the vertical way by the nuts 19. 16 plant on both sides of the stepping squares-skeletons on the opposite side of the restrictive platform 7, then the movable rollers 17 select the gap between them with the fixed roller 16 to the size of the thickness of the stepping squares-sk ltonov and fixed in this position. By turning the yoke 14, the rollers 16 and 17 are brought to the place of fixation by the first pin from the restrictive pin and are fastened with the help of nuts in this position. Further, the traverse is successively moved along the step squares to the helmetons, thus creating the correct position for their fastening to the package. After which the device is removed. A sleeve 24 is then installed and attached. The assembled frame is half rod

the box is packed with the mixture. The profile of the parts of the slide and the blade of the core box is finally formed on the upper sides of the stepping squares Skeletoi 8 and 9 with the required accuracy. Technological grooves 6

Claims (2)

In the working area of the discs is filled with a mixture for the manufacture of parts of the slide and the blade. Claim 1: A device for profiling stepping squares with skeletons according to ed. No. 1502158, from the fact that, in order to increase labor productivity and quality of the working surfaces of the core box, it is additionally equipped with several pairs of rollers, frames, brackets and mechanisms of movement and stopping of the frame, with the axes of the rollers mounted on brackets that are mounted in the frame hole. 2. The device according to claim 1, wherein the mechanism for moving and locking the frame consists of a screw fixed on the traverse, a detachable nut and a stopper, the detachable nut and the stopper mounted in a frame and arranged with the ability to interact with each other through the fingers, fastened in a detachable nut. -f-g FIG. 7 6 b 5 FIG. 2 Che } Si 21 a oz yushapsho DMf / J se & ssa 15 Vid I'm 18 / Fie.7