SU1351724A1 - Arrangement for vibration drilling - Google Patents

Abstract

The invention relates to the machining of metals by cutting and can be used when drilling deep holes in blanks of alloyed viscous steels and alloys. The aim of the invention is to increase the reliability of the device and improve chip breaking by eliminating resonance in the AIDS technological system. Concentric located sleeves 8 and 9 are placed in housing 1 with the possibility of interaction with rings 6 made of analogues of piezo materials. The sleeve 7 is rigidly connected with the holder 3 on the tool 4 side. In the cavity formed by the body 1, the cup 10 and the sleeves 8 and 9, plastic material is placed. With the aid of the nut 12 in the device, all the clearances are selected. 1 il. (L

Description

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one . 1351724

The invention relates to metal cutting and can be used for drilling deep holes in blanks of alloyed viscous steels and alloys.

The aim of the invention is to improve the reliability of the device and improve chip breaking by eliminating resonance phenomena in the technological system of AIDS.

The drawing shows the device, a general view.

The device for vibratory drilling comprises a body 1, a spindle 2, a conical tail holder 3 of the tool 4, a block 5 consisting of rings 6 made of analogs of piezomaterials. In the internal cavity of the holder 3 of the tool 4, the size of the sleeve 7 is rigidly connected with the holder 3 from the tool 4 side. The device also includes the sleeves 8 and 9, the cup 10 in which the inlet cone 11 is mounted. The glass 10 is fixed in the housing with nuts 12. In the cavity formed by the end surfaces a and b of the sleeves 8 and 9, the cup 10 and the inner surface of the housing 1, an insert 13 of plastic material is placed. The spindle 2 is fixed in the housing 1 with pins (not shown).

For example, a soft grade polyurethane or a hydroplast can be used as an insert made of plastic material.

The device works as follows.

Before starting work, it is necessary to compress the plastic material by turning the nut 12 and longitudinal movement of the glass 10 relative to the body 1. As a result

machine feed carriage using external thread. At the same time With the action on the tool 4 by cutting forces in the device, depending on the voltage pulsation frequency and frequency, which is supplied by an electric winding placed on the outer surface of the housing 1 (electric supply channels not shown), a change in the total thickness of the rings 6 is observed which leads to movement of the ends a and b of the sleeves 8 and 9. When the thickness of the rings 6 of the block 5 changes, the thickness of the rods 7 (axial compression) of the sleeves 7 decreases and the total force changes, respectively, from cutting forces and axial compression Tue LKI 7, whereby the movement of the cutting tool is occurred. Thus, an oscillating movement of the cutting tool relative to the machined workpiece with an amplitude of oscillation equal to the axial deformation of the tool used in the drilling of deep holes is provided.

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When operating this device, if necessary, it is possible to apply axial oscillation frequencies in a wide range from a few tens to hundreds of hertz.

Claims (1)

Invention Formula A device for vibrating the deep holes, comprising a spindle placed in the housing, a non-existent tool and equipped with a ring-shaped vibrator and a sleeve, exc. that, with the aim of increasing reliably With these devices and chip breaker improvements, all crushing operations are selected by eliminating gaps in the device joints, and sleeve 7 transfers the created force by nut 12 to long sleeve 7, creating tension in the holder 3, since sleeve 7 is rigid associated with the holder 3 from the tool 4 side. In the process of drilling deep holes, the tool 4 from the side of the workpiece is subjected to cutting forces and torque, which are perceived simultaneously by the holder 3 and the long bushing 7 and further by the body 1 installed in 0 20 machine feed carriage using external thread. At the same time With the effect on the tool 4 by cutting forces in the device, depending on the magnitude and frequency of the voltage ripple, which is supplied by means of an electric winding placed on the outer surface of the housing 1 (electrical feed channels not shown), a change in the total thickness of the rings 6 is observed, which leads the displacement of the ends a and b of the sleeves 8 and 9. When the thickness of the rings 6 of the block 5 is changed, the tension of the sleeve 7 decreases (the axial compression) of the sleeve 7 decreases and the total force from the cutting forces and the axial contraction changes accordingly. These sleeves 7, resulting in a movement of the cutting tool. Thus, an oscillating movement of the cutting tool relative to the workpiece with an oscillation amplitude equal to the axial deformation of the tool used in the drilling of deep holes is provided. 25 20 thirty 35 When operating this device, if necessary, it is possible to apply axial oscillation frequencies in a wide range from a few tens to hundreds of hertz. Invention Formula A device for vibratory drilling of deep holes, comprising a spindle placed in a housing, a supporting tool and equipped with a vibrator made in the form of rings, and a sleeve, exc. In order to increase the reliability of phenomena in the AIDS technological system, the device is equipped with two concentrically located and installed with the possibility of movement in the axial direction in addition. body sleeves with different cross-sectional areas, a cup mounted in the housing with the possibility of interaction with an additional sleeve with a smaller cross-sectional area and an insert of plastic material placed in a closed cavity formed by the housing, cup and additional sleeves. - 1351724 with an additional sleeve with a less-bath with the main sleeve, and.the second the cross-sectional area of the us-additional sleeve is connected to Tanovlena with the possibility of contact rings.