SU1025495A1 - Lengthwise turning automatic lathe - Google Patents

Abstract

A LONG-TERMINAL AUTOMATIC machine containing a threaded vortex head with an electric motor and a spindle, characterized in that, in order to expand technological capabilities, the machine is equipped with a longitudinal feed screw, kinematically connected with the machine spindle through the overrunning sleeve introduced into the machine, and the spindle and lead screw for threading kinematically connected with the motor thread-cutting vortex head. UfjUtfffJtAffOf

Description

The invention relates to machine tool industry.

A known longitudinal automatic turning machine comprising a movable headstock mounted on a bed, a caliper assembly and a threading device £ 1].

The disadvantage of this machine is the inability to thread with a shoulder, low threading performance and limited technological capabilities.

The purpose of the invention is to increase processing productivity, simplifying the design and expanding technological capabilities.

This goal is achieved in that the longitudinal turning machine, comprising a thread-cutting vortex head with an electric motor and a spindle, is equipped with a longitudinal feed screw kinematically connected to the machine spindle via an overrunning clutch, the spindle and the screw during thread-cutting are kinematically connected to the thread-cutting vortex head motor .

The drawing shows a kinematic diagram of the machine.

The machine contains a thread-cutting vortex head 1, with the possibility of longitudinal movement from the lead screw 2 and lateral movement from the copier 3 through a breaking arm 4 and driven by rotation from the electric motor 5 through a belt drive 6 with a pull roller 7. The vortex head is equipped with an additional lunette sleeve 8, moving only in the longitudinal direction. The electric motor 5 of the drive of the thread-cutting vortex head 1 drives the nut 9 of the lead screw 2, the V-belt drive 10 and the gearbox 11. The overrunning clutch 13 is mounted on the spindle 12 of the machine, connected via gears 14 and 15 and a removable gear pair 16 with a nut 9.

On the main shaft 17 of the machine, driven by the engine 18 through a flat-belt gear 19, a roller overrunning clutch 20 is installed, through which the rotation is transmitted using a V-belt transmission 21 to the machine spindle 12. From the main shaft 17 receives the rotation of the

Compiled by Y. Yelchanin Editor N. Grishanova Tehred M. Gergel Corrector V. Rovnaya

Order 4461/8 Circulation 1106 Subscription

VNIIIPI of the USSR State Committee for Inventions and Discoveries

113035, Moscow, Zh-35, Raushskaya nab., D. 4/5

Branch of PPP Patent, Uzhhorod, st. Project, 4

Claims (1)

VARIABLE VARIABLE AUTOMATIC MACHINE, containing a thread-cutting vortex (a head with an electric motor and a spindle, characterized by tech that, in order to expand technological capabilities, the machine is equipped with a longitudinal feed screw kinematically connected to the machine spindle via an overrunning clutch inserted into the machine, and the spindle and lead screw for thread cutting kinematically connected with an electric motor of a thread-cutting swirl head. Lunette rate with calipers 26 25 Shldelnaya oaope 11 9 2 26 liter shaft 22. -Fit 23 is mounted on it, acting on the microswitch 24 to turn off the engine 18 and turn on the engine 5. The longitudinal stroke of the vortex head 5 is limited to two microswitches 25 and 26. The machine works as follows. The motor 18 is turned on, the coupling 20 Yu is jammed and the rotation is transmitted to the machine spindle 12 — turning is performed, simultaneously with the motor 18 the rotational motor 5 of the thread-cutting vortex head 5 is turned on, which, turning the nut 9 of the lead screw 2 into rotation, moves the vortex head 1 to longitudinal direction to the spindle to the start of threading, defined by microswitch 25. The operation of turning and approach can be combined because the clutch 13 allows the spindle 12 of the machine to overtake the threading chain. After turning the fist 23 on the camshaft 22 presses 25 microswitch 24 and turns off the engine 18, at the same time turning the motor 5 of the vortex head in the opposite direction to threading. Cross feed is carried out from 30 copier 3 through a breaking lever 4. During thread cutting, the spindle 12 rotates from the engine 5 of the vortex head, since the freewheel 13 is jammed. At the same time, the main 35 shaft 17 and the camshaft 22 do not rotate, as the engine 18 is turned off, and the rotation of the spindle 12 wedges the clutch 20. ' After the thread cutting window ^{1 is} started, the microswitch 26 is pressed. From the motor 5 ⁴⁰ , the supply of the vortex head 1 starts again, and at the same time, the motor 18 is turned on by rotating the spindle 12 - the part is cut and a new cycle begins. 45 The application of the proposed design of the machine allows high-performance manufacturing in one operation parts of considerable length with threads formed by the vortex processing method 50, to simplify the design of the thread-cutting device, to expand the technological capabilities of the machine, and it is possible to sharpen the thread behind the shoulder.