RU38454U1 - SHAPED DISK MILL WITH TURNING TOOTHS - Google Patents

Description

SHAPED DISK MILL WITH RETAINED TEETH

The invention relates to metalworking and tool technology and is intended for milling shaped grooves and grooves.

Known prefabricated worm cutters with rotary rails 1, p. 546.

A common disadvantage of the known designs with respect to the function of milling shaped grooves and grooves is the inability to mill various, for example, serrated grooves of a different module or shaped surfaces with a milling cutter with one profile shape. Functionally, the presence of rotary rails in a known mill has technological sense and is intended for use only in the manufacture of a mill for grinding the profile of the rails in two fixed positions in order to thereby exclude the backing operation. The well-known milling cutter is given here only due to the verbal coincidence of the name “rotary.

The aim of the invention is 11 to create a shaped disk cutter for shaping various shaped grooves and grooves with a single profile cutter, due to the adjustment of stepless adjustment of the position of the knives in the cutter body.

This goal is achieved due to the fact that the knives 1 (Fig. 1 and 5) due to the adjusting actions can be installed at different angles E (Fig.4). Changing the position of the knives 1 in the housing 4 Allows using a knife with one profile (Fig.Z) to obtain grooves of various shapes when milling. The fixation of different positions of the knife 1 in the body of the cutter 4 is carried out by a knife-wedge system, which provides the system in the groove of the body in two possible ways, one of which (Fig. 1) bursts the system due to the wedge 2 that is retracted by the screw 3, and the second due to the screw 6 that extends wedge 7 (Fig.Z). In both cases, reIllli, .li i.gC., r W УЯ Д I

the placement of the wedges leads to the back of the knife against the supporting surface of the groove, thereby fixing the position of the knife.

In FIG. 1 shows a shaped disk mill with rotary teeth, an end view with a knife fastening with a retractable wedge; figure 2 shows a straight line, i.e. parallel to the axis of the cutter, knife position, view along arrow A; in Fig.3 - the direct position of the knife, a view along arrow B, illustrating the position of the shaped profile of the cutter; figure 4 shows the oblique position of the knife rotated by a certain angle S in a plan view along arrow A; on Fig.3 shows the fastening of the knife retractable wedge; Fig.6 shows a straight line, i.e. position of the knife parallel to the milling axis with fastening by a retractable wedge.

The cutter contains knives 1 having circular backs 5 installed in the grooves of the body 4 so that the circular back of the knives and the circular supporting wall of the groove are aligned around the circle 5. On the side of the front edge of the knife in the grooves are wedges 2 or 7, adjacent one flat side to the knife and the other, the circular side, to the circular wall of the groove, also made in the form of a surface of revolution, for example, a cylinder or cone. In this case, the circular surfaces of the wedge and knife can be geometrically uniform with a common center, as shown by circle 5 in FIG. 2. However, the circular surfaces of the knife and the wedge 5 and 8 may not coincide and have different centers and sizes, as shown in Fig.6. The screws 3 are screwed into the case and in the wedges 2 are located in the circular grooves, and the screws 6 are wrapped in wedges 7, reaching the bottom to the bottom of the groove.

The tool works as follows. Before milling, the knives are fixed in the required position by selection or calculation of angle 2. For this, the tightening of screws 3 or 6 is first loosened, i.e. they are slightly inverted, which allows you to rotate the knives and wedges along circular surfaces 5 or 5 and 8 on the corresponding Z groove to be machined. Then turning

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screws 3 or 6, this oblique position of the knives is fixed, and their pressing to the rear supporting circular surface of the body is carried out either by sliding the wedge 2 in the direction of the center of the cutter, or by sliding the wedge 7 from the center of the cutter through the stop of the end face of the screws 6 into the bottom of the groove. In both cases, wrapping helps to fasten the knives by expanding the wedge-knife system, and turning - vice versa. Next, the shaped groove is milled. If the problem arises of milling some other shaped groove, of a similar configuration, but with different parameters, this can be done by adjusting the position of the knives by changing the angle S.

1. Information source: Semenchenko I.I., Matyushin V.M., Sakharov G.N. Design of metal cutting tools. M .: Mashgiz, 1962. -952s.

Claims (3)

1. Shaped disk mill with insert knives, characterized in that the knives inside the grooves of the housing can be rotated by some angle and alternately fixed in the housing socket using wedges in a selected oblique position. 2. The shaped disk mill according to claim 1, characterized in that the rotation of the knives in the grooves of the body is due to the presence of circular surfaces on the backs of the knives and wedges that are joined with the corresponding circular surfaces in the grooves of the body, despite the fact that the circular surfaces of the knives, wedges and the body in the combined position, they can have either one common geometric center or can be described by two different circles, separate for a pair of knife-case and for a pair of wedge-case. 3. Shaped disk mill according to claims 1 and 2, characterized in that the fixed position of the knives can be ensured by wedges sliding to the center of the cutter or sliding from it.