SU1426706A1 - Multiple-tool drilling head - Google Patents

Abstract

The invention relates to the machining of metals by cutting, in particular, to equipment for drilling holes in plates. The aim of the invention is to increase reliability by eliminating the wear of rotating assemblies. The gearbox 2 of the engine I is fixed on the support 3. The output shaft of the gearbox 4 is connected to the planet carrier 5, in which a slot is made, where the shaft 7 with the bearing 8 is located. The shaft 7 is mounted in the disk 9, bearing the pins 10, resting on the curved levers 11, connected to the drills 12 by means of rollers 13, which rotate in bushes 15 of the sleeves placed in the disk 16. Evenly, along the circumference of the same radius on the first and second disks, the exentric shafts ITj are installed between the connecting disks. 2 Il.

Description

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The invention relates to metal cutting, in particular, equipment for drilling holes in the boards.

The purpose of the invention is to increase reliability by eliminating the wear of rotating components.

Figure 1 shows the kinematic scheme of the proposed multi-tool head, a longitudinal section; figure 2 - section in figure 1.

j The head contains an actuator consisting of both the engine 1 and the gearbox 2, which is fixed on support 3. The output shaft of the transmitter 4, connected by the carrier 5 with slot 6, covers the shaft 7 with the bearing 8 located in the first disk 9. In disk 9 pin installed

The trajectories are pressed on the ends of the levers II, in connection with which the drills 12 are rotated. Feed movement report details.

Marking and drilling holes in the disk 9 for the pins 10 and in the disk 16 for the sleeves 15 can be performed at a very low accuracy class. All manufacturing inaccuracies are selected due to the operation of the kinematic links consisting of pins 10 and levers 11. The lever 11 also does not require increased accuracy. When drilling holes up to 3 mm, the lever 11 can be made by cold bending.

The lever 11 is bent at a certain angle to the axis of the drill. Change step

You are 10, leaning on a curved growl 20 remote control drills possible while maintaining the same amplitude of movement of the disk. At sharper angles between the drill axis and the lever 11, it is possible to achieve smaller distances between the drills 25.

Claims (1)

Invention Multi-Tool Drilling gf II connected to drills 12 with rollers 13 in which the press-shafts of drills 14 are pressed 12. The rollers $ 1 rotate in sleeves 15 that are located in the second disk 16, in which three also uniformly in three places around the disk circumference eccentric shaft 17, connecting the first disk with the second and Servants for imparting a plane-parallel-head, which is associated with the direct movement along a circular path of a mipBoro disk relative to the second. Bearings 18 and 19 are located at the ends of the eccentric shafts 17. The second disc rests on the base 20 with the plate 21. The drills 12 can be connected to the rollers 13 by pressing in, or by using another connection. 35 water through the shaft disk with holes, installed with the possibility of plane-parallel movement in a circular, trajectory relative to the second disk carrying drill, and the axis of the holes of the first disk are parallel to the axis of the drills, In order to increase reliability, the head is provided with a carrier with a slot designed to accommodate a shaft which is mounted eccentrically by a carrier, pins, placed in the holes of the first disk, fixed on the last circumferentially one radius eccentric shafts connected with the second disk and mounted in the plane passing through the axes of the drills, with levers connected at one end with pins, and the other with drills. The head works as follows. G turning on the motor 1, the rotation is transmitted to the output shaft 4 and then the carrier 5, which rotates around the axis of the shaft 4. The pushing force through the bearing 8 is transmitted to the shaft 7, as a result of which the disk 9 makes a plane-parallel movement along a circular path. The BMiecTe pins 10 with the disk 9, rotating in a rotary header, containing the associated water through the shaft disk with holes, installed with the possibility of plane-parallel movement in a circular, trajectory relative to the second disk carrying drill, and the axis of the holes of the first disk are parallel to the axis of the drills, In order to increase reliability, the head is provided with a carrier with a slot designed to accommodate a shaft which is mounted eccentrically by a carrier, pins, placed in the holes of the first disk, fixed on the last circumferentially one radius eccentric shafts connected with the second disk and mounted in the plane passing through the axes of the drills, with levers connected at one end with pins, and the other with drills. 2