SU19887A1 - Screw cutter for making screws or the like items - Google Patents

Description

In this machine, the incisors, which successively enter into operation, are rotatably fixed on a rod located between the guide runners, of which. one is provided with a template that transversely gives the incisors.

In FIG. 1 depicts a top view of the caliper of this machine; FIG. 2, too, side view; FIG. 3 is a side view of a modified caliper; FIG. 4 is also a top view; FIG. 5-side view of a modified caliper; FIG. 6, too, vvd from above; FIG. 7 is a top view of the support rollers supporting screws; FIG. 8, too, side view; FIG. 9, 10, and 11 - bolt head with tools for feeding the cutters in three modifications.

On the rod 5 (Figs. 1 and 2), the holders 20 are pivotally fixed, moving along the helical surfaces of the guide runners 3, 2, of which the latter is provided with a template 8 intended to communicate the transverse feed to the cutters 1 fixed inside the holders with screws 21, with tool holders 3, 2, the machine calipers are always under the influence of team 6 in order to set the cutters differently with respect to the screws.

In the modified caliper (figs. 3 and 4), the tool holders 22 are placed between curved closed guide surfaces 2 of concentrically mounted shaped washers 23, 24 located on the roller 9, on which with the help of nuts 12, 13, adjustable leashes 10, 11 are mounted, designed to move the holders. For the purpose of the message supplying cutters 1 moving with the help of screws 14 inside the holders, the ends of the latter are affected by a template not shown in the drawing.

In the modified caliper (Figs. 5 and 6), the tool holders 33 are fixed on a roller 30, associated with a sector 32 rotatable around an axis 34, which, for the purpose of communicating the feed to the cutters 1, is under the influence of the cam 25.

In order to support the screws during cutting, on the side opposite to the incisors, forcibly rotated support rollers 16, 1 & (Fig. 7 and B), the surface of which is provided with cutting.

FIG. 9 and 10 depict bolt heads, in which, for the purpose of self-supplying, to each of the cutters 40, the latter are connected by t: levers 42 influenced by the figured coupling 43 (Fig. 9) or 43 (Fig. 10).

The image in FIG. And the bolt cutter is provided with axles 44 which are rotatable on axes 44 for holders 26, which, with the help of screws 46, are connected with levers 42, designed to communicate with each other the cutters.

When the caliper is fed to the workpiece 27 clamped in the rotating chuck 4 (FIGS. 1 and 2), the tool holders 20, rotating on the rod 5, move along the helical surfaces of the guide rails 2, 3, as a result of which the cutters 1 change all the time its position relative to the axis of the workpiece. When the cutters are at the height of the axis of the workpiece 27, they cut the screw, and the cutters are informed that "i.pe3" is attached to the blade 2 of the tool 8, which acts on the rear end 28 of the holder, the front end of which is under the influence of the spring 6.

In the modified device shown in FIG. 3 and 4, the incisors move in the direction of the workpiece axis with the leads 10 and 11, and the number of the incisors 1 involved in the work may vary due to the fact that the guiding surfaces of the 2 washers 23 and 24 are curved.

In the device shown in FIG. 5 and 6, the cutters 1 are guided to the workpiece by sector 32, which, through the cam 25, rotates on the axis 34, whereby the feed to the cutters is communicated by a copier 29.

In the device shown in FIG. 9 and 10, the cutters 40 mounted on the die head are connected to the levers 42, the ends 30, 30 of which, moving along the figured coupling 43 or 43, turn the levers, thereby jointly feeding the cutters 1, 1.

In the device shown in FIG. 11, the tool holders 26 are connected by bolts 46 to the levers 42, which, by moving, turn the guides 44 on the axles 36 together with the cutters 1, thereby communicating with the latter the feed towards the workpiece.

During cutting, the workpiece is supported by support rollers 16, 16 (Fig. 8), which receive a forced rotation, and as the cutting is deepened, the rollers respectively move along the direction of the axis of the workpiece.

The subject of the patent.

1. A screw-cutting machine for the manufacture of screws or the like of objects, characterized by using guide rails 2–3 mounted on a machine caliper (Figs 1 and 2), which are pivotally movable on an axial direction, rotatably fixed on the rod 5 between the skids. and adjacent cutters 1, which are transversely fed by means of a template 8 on a skid 2.

2. Alteration of the machine described in paragraph 1, characterized in that the cutter-blade rails are made in the form of concentrically mounted shaped washers with curvilinear closed guide surfaces 2 (Fig. 3 and 4) used to move the tool holders with them. adjustable on vulyuk 9 leads 10 and 11.

3. Variation of the machine described in paragraph 1, characterized in that the cutters 1 are located on the turning sector 32 (Fig. 5 and 6) of the machine supplied to the object being processed and shared with them by means of any known device.

4. When described in pp. 1-3 of the machine tool, using forcibly rotated support rollers 16; 16 (Fig. 7 and 8) installed with anti-incisive side cutters, used to support the screws during cutting.

5.Visual change - the machine described in p. 1, so that in order to supply re40, installed, for example, on a bout of 1x heads,

The latter are equipped with cutter-connected levers 42, driven by a figured coupling 43 or 43 (Fig. 9 and 10).

6. When characterized in paragraph 5

the bolt head of the machine; the use of rotary guides 41 for the clamps of the cutters 1 (Fig. 11) connected to the levers 42 by means of clamping screws 46, 464

FIG. 8 of FIG. 41. With .je -ferr P. :. | i., lte S .; I; JliVit fig.d 4 "42