RU1815032C - Nut-tapping automat - Google Patents

Abstract

Use: nut-cutting machine provides threading in nuts. SUMMARY OF THE INVENTION: aBTOMaf comprises a housing 1 in which a spindle 2 with a tap 3 is mounted. The spindle 2 rotational drive is made in the form of shafts 4 mounted parallel to the spindle 2, provided with gear sectors 5, 6. Sectors 5, 6 periodically interact with the gear surface of the spindle 7 2. The mechanism for fixing the spindle is made in the form of 4 sectors 12, 13, and 14, 15 mounted on the shafts, which periodically interact with the cylindrical grooves 8, 9 and 10, 11 of the spindle 2. 5 ill.

Description

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The invention relates to metalworking and can be used in threading nuts.

The purpose of the invention is to increase operational reliability and ensure manufacturability.

This goal is achieved by the fact that in a nut-cutting machine, in the housing of which a spindle with a tap is installed, kinematically connected to a rotation drive, made in the form of shafts mounted parallel to the spindle, provided with gear sectors deployed relative to each other, periodically interacting with the gear surfaces of the spindle made in the form of a gear shaft with cylindrical grooves at the ends, and shafts located around the gear shaft are provided with additional unfolded relative each other with smooth sectors that periodically interact with cylindrical grooves of the pinion shaft.

The proposed nut-cutting machine is characterized by the following salient features:

a) the spindle is made in the form of a gear shaft;

b) at the ends of the pinion shaft, cylindrical grooves are made;

c) shafts located around the pinion shaft are provided with additional smooth sectors deployed relative to each other;

d) smooth sectors (like gear) periodically interact with the cylindrical grooves of the pinion shaft.

Sign a provides the manufacturability of the production of the spindle, t, to. the gear surface of the pinion shaft can be performed by any known tools according to known technology.

Signs gd provide increased reliability in the operation of a nut-cutting machine, since the tap can be positioned at the bottom, thereby preventing chips from falling into gears, and smooth sectors can tighten tolerances in comparison with gears and thereby guarantee a minimum, constant in size , the radial clearance between the sectors and surfaces of the cylindrical grooves, and this, in turn, stabilizes the vertical position of the spindle, i.e. gear shaft, excluding jamming.

Figure 1 shows a schematic kinematic diagram of the proposed nut-cutting machine; figure 2 - section aa

in Fig. 1 is a top view of smooth sectors located in cylindrical grooves of the pinion shaft; in Fig. 3 - section BB in Fig. 1 is a top view of the smooth sectors located outside the cylindrical grooves of the pinion shaft; Fig. 4 is a section BB of Fig. 1 is a plan view of the gear sectors engaged with the gear surface of the pinion shaft; figure 5 - section GG

Fig. 1 is a plan view of the gear sectors located away from the gear surface of the pinion shaft.

The nut-cutting machine comprises a housing 1 in which a spindle 2 with a tap 3 is mounted kinematically connected to a rotation drive; made in the form of installed around and parallel to the spindle 2 shafts 4, equipped with deployed

relative to each other by gear sectors 5 and 6, periodically interacting with the gear surface 7 of the spindle 2, the latter being made in the form of a pinion shaft with cylindrical grooves 8,

g and 10, 11 at the ends, and the shafts 4 are equipped with additional smooth sectors 12,13 and 14, 15 deployed relative to each other, periodically interacting with the corresponding cylindrical

the grooves 8, 9 and 10, 11 of the pinion shaft 2. The shafts 4 are kinematically connected to each other and to the pinion gear 16 through the pinion 17, which ensures their synchronous rotation in one direction. Smooth and toothed sectors are mounted on shafts 4 in antiphase, i.e. deployed relative to each other in the following order: if the gear sector 5 and smooth sectors are in contact with the counter surfaces of the pinion shaft 2

12 and 14, then the remaining sectors of the same name are in antiphase, i.e. rotated relative to the first by 180 ° - this is the gear sector 6 and the smooth sectors 13 and 15. The functions of the sectors are different: the gears transmit torque from the drive shaft gear 2 (sp-indela) with a tap 3, and smooth ones support the gear shaft 2 weight and limit to a minimum the radial movement of the pinion shaft from the vertical axis.

A screw-cutting machine operates as follows.

After the drive gear 16 is turned on, the torque through the gears 17 is transmitted to the shafts 4 and sectors 5, 6. 12, 13, 14 and 15, while the gear sectors 5 and b are alternately engaged with the gear lever 7 of the gear shaft 2 torque is transmitted to the tap 3. and the smooth sectors 12, 14 and 13. 15 also alternately entering the corresponding cylindrical grooves 8, 10 and 9, 11 hold the pinion shaft 2 in an upright position. A nut 18 from the loading device (not shown to hell) is supplied to the upper end of the pinion shaft 2 and, under its own fan, is lowered to the ends of the smooth sectors 12, which, when turned through 180 °, form an annular gap around the pinion shaft 2, whose mask is sufficient for the smooth passage of nut 18 down to the next level, i.e. to the second group of smooth sectors 13, where the process of its passage is repeated. When the nut 18 passes through all six levels along the pinion shaft 2, it enters the inlet cone of the tap 3 and, due to the self-locking of the grooving, a thread is formed in it. After the nut 18c of the tap 3 has passed, it falls into the receiver of finished parts (not shown).

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Claims (1)

SUMMARY OF THE INVENTION A nut-cutting machine comprising a housing, a spindle with a tap, kinematically coupled to a rotary drive by means of gear pairs. the driven link of each of which is located on the spindle, and the driving links are located on the shafts parallel to the spindle, the spindle fixing mechanism, which is two pairs of grooves made on the spindle and two pairs of sectors mounted on the shafts and deployed relative to each other, characterized in that, to simplify the design, the driven link of the gear pairs is a gear-shaft made between the pairs of grooves, and the drive links are made in the form of two gear sectors deployed relative to each other, when The volume of the sector of the spindle fixing mechanism is cylindrical. 6-6