SU1526926A1 - Device for milling - Google Patents

Abstract

The invention relates to mechanical engineering, in particular to a handheld mechanized tool, and can be used to drill holes, straight and figured grooves. The aim of the invention is to expand the technological possibilities of cutting holes of any configuration, as well as straight and figure grooves. The device contains a base 1 with a drill 8 fixed on it, pins 10, 11 and a device moving mechanism including a spherical hinge 3. In the latter there is an opening in which a rod 5 with a pointed triangular end 6 is mounted with axial movement. Base pins 10, 11 and the movement mechanism are set so that the vertical axes of the pins 10, 11 and the spherical hinge 3 are in the same plane with the spindle 8. When milling a shaped (curvilinear) groove, only the base uyuschy pin 10, sinks into the milled groove. When milling the straight groove, both pins 10 and 11 are involved in the work. When cutting a round hole, either pin 11 or pin 10, which are the center of the hole being cut, are involved in the work. 2 hp ff, 3 ill.

Description

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8, the spigots 10, 11 and the mechanism for moving the device, including a spherical hinge 3. In the latter there is an opening in which a shaft 5 with a pointed triangular end 6 is mounted with the possibility of axial movement; 6, The grip bases 10, 11 and the displacement mechanism are installed so that the vertical The JQ axes of the pins 10, 11 and the spherical hinge 3 are in the same plane

with a drill spindle 8. When milling a shaped (curvilinear) groove, only the base pin 10 participates in the work, which falls into the groove milling groove. When milling the straight groove, both pins 10 and 11 are involved. When cutting a round hole, either the It pin, or pin, which are the center of the hole being cut, 2 hp f-ly, 3 silt „

The invention relates to the field of mechanical engineering, in particular, to a handheld mechanized tool, 20 and can be used to drill holes, straight and figured grooves.

The aim of the invention is the expansion of technological capabilities 25 by cutting openings of any configuration, as well as straight and figured grooves.

Fig, 1 shows the device, a general view; in fig. 2 is a view A of FIG. one; 30 in FIG. 3 - node I in FIG. 1,

The milling device comprises a base 1, made in the form of a bracket, a drill holder 2, made in the form of a yoke fixed on the base 1, and a moving mechanism. The latter contains a spherical hinge 3. whose body is fixed on the plane of the base 1 "A hole is made in the spherical hinge 3, in which a rod 5 is mounted for axial movement, having a pointed end 6 and a handle 7. The pointed end 6 is triangular. The drill 8 is fixed in the holder 2 by means of a 9o yoke. The spring-loaded clamping pin 10 is mounted on the base 1 and is intended for the base of the device when milling shaped (curvilinear) grooves. The spring-loaded second-positioning pin 11 is mounted on the base and is designed to mill only straight grooves. In this case, the pin 11 works in conjunction with the pin 10. The pins 10 and 11 and the movement mechanism are set so that the vertical axes of the pins 10 and 11 and the spherical the hinge 3 is in the same plane as the drill spindle

8. Pin 11 also has the possibility of axial movement and fixation in the upper (non-working) position. The base 1 is equipped with a support roller 12,

The device works as follows

Two holes are drilled in the workpiece so that the cutting tool of the device (a milling cutter or drill bit) can be inserted into one of them, into the other pointed end 6 of the shank 5. Holding the drill with one hand, turn it on with the other hand, holding the shank 7 of the shank 5, apply force in the direction of the drill, moving the device within the possible angle of inclination of the rod. 5 This position of the rod is shown by a dotted line. When the device is moved, the cutting tool leaves a groove in the product. The spring-loaded clamp pin 10 automatically falls into the cut groove, fixing the cutting direction. When milling the shaped groove, the second clamp pin 11 is set in the upper (non-working) position and milling is performed only with the pin 10 Next, it moved the pointed end of the rod into the slot formed, like a lever, moving the device in the desired direction, along the previously marked out line of the cut figure (curvilinear ) Slot. The rod 5 is mounted in a hinge with the ability to move freely along its axis. Having moved the pointed end 6 of the rod 5 to a new initial position, the cycle is resumed. The depth of the cut and is regulated by the drill in the chuck. When milling the straight grooves, the base pin 11 is lowered down to the lower position and milling takes place with

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using two clamping pins 10 and 11. The device also allows a round hole to be cut, a cutting tool is inserted into one of them, and one of the 10 or 11 clamping pins is inserted into the other. Applying force to the rod 5, a round hole is cut out (groove) with a radius equal to the distance between the tool d and the engaged pin. The triangular pointed end 6 provides reliable adhesion of the rod 5 with the walls of the cut-through groove.

Claims (3)

1. A milling device comprising a drill, a base with a drill holder, a first clamping pin and a moving mechanism, characterized in that, in order to expand the technological capabilities, the device is provided with a supporting roller associated with the base, and the moving mechanism is made in the form of a fixed spherical hinge mounted in it with the possibility of axial movement 11 11 five 0 five a rod with a support end designed to interact with the surface to be machined, the base pin being spring-loaded relative to the base, located between the drill holder and the transfer mechanism, the vertical axes of the base pin, the drill and the spherical hinge are in the same plane. 2. The device according to claim 1, which is equipped with an axially mounted axially displaced and spring-loaded relative to it second pivot pin located between the support roller and the displacement mechanism, the vertical axis of the second pivot pin It is located in the same plane with the vertical axes of the spherical hinge, the first clamping pin and the drill. 3. The device according to claim 1, in accordance with the fact that the supporting end of the rod is made triangular and pointed. Vida eight fJJuz.l A / aJ