SU1348064A1 - Method of separating chips - Google Patents

Abstract

The invention relates to mechanical engineering and can be used to separate chips during turning of workpieces with uneven oversize. The aim of the invention is to increase the reliability and reduction of energy consumption during chip separation by reducing the force during chip separation. The cutter 2 and the roller 3 are mounted on both sides with respect to the workpiece 1. The chips formed during the cutting process are separated by means of knives (separating elements) 8 and 9. The coordinated operation of the cutter 2, roller 3 and separating elements is carried out by the control system . During the processing of the workpiece, the radial component of the cutting force is controlled and at the time of reaching the maximum value and with a time delay required by half a turn of the workpiece, roller 3 is applied to the groove on the cutting surface of the workpiece. The separation of chips by elements is carried out in the place where the groove is applied. 4 il. S (L pv CO 4 00 O O5 4

Description

one

The invention relates to mechanical engineering and can be used for chip separation during turning of workpieces with uneven allowances.

The purpose of the invention is to increase reliability and reduce energy consumption in chip separation by reducing the force on chip separation.

FIG. 1 scheme for implementing the method; in fig. 2 is a diagram of the delay line; in fig. 3 is a graph of the radial component of the cutting force when machining an eccentric billet; in fig. 4 - 1 the change in force of the knurling of the sinusoidal groove when machining parts with varying allowance per revolution of the part.

The workpiece 1 is installed in the base elements of the machine (not shown) for machining with the cutter 2, and on the opposite to the cutter side of the workpiece there is a roller 3 having a sinusoidal groove and mounted rotatably on the axis 4 mounted on the guide 5. Chip 6 formed during the cutting process, is crushed into elements 7 by means of knives 8 and 9. In order to coordinate the operation of the knives, the roller, depending on the cutting force, the device has a control system that includes a measuring device And the user 10, the information processing unit 11, the control unit 12, the delay unit 13 and the executive G) locks 14 and 15.

The use of the chip separation method will make it possible to reduce power consumption for the implementation of the crushing process by about 1.5%, significantly reduce the consumption of troenergy, as well as increase the durability and durability of the device assigned to the mechanical chips, by reducing

The machining of a part 1 with an unequal "2рny cutting edge 2, pro 40 P division into elements, flows with a variable force of radial component cutting force P (Fig. 3), the minimum value of which is measured and accelerated by block 10, information from block 10 the number of formula inventions

45

The method of chip separation, but in the process of processing, the radial components of the cutting and periodically nano cutting surface are monitored with a groove, in which the chips are separated, which, in order to reduce the energy costs of ki separation, are delayed the time required for the half turn of the workpiece, from the moment the minimum value of the component of the cutting force is given.

The detail n and the value of the workpiece diameter d are fed to the information processing unit 11, then to the control unit 12, from which the execution commands are sent to the execution unit 15 and through the delay unit 13 to the executive unit 14. At the moment of reaching the roller 3, on axis 4, fixed in guide 5, a sinusoidal groove is applied with a force P a as and a time lag of half a turn of part 1, and

Yu R,

480642

ro. boom 3 and cutter 2 are located symmetrically with respect to the axis of part 1. Splitting (shavings 6 and 7 are formed using knives 8 and 9 at a distance of 1 equal to the length of the arc of the circumference of the part from the cutting zone to the knurling area of the groove, with a lag in time to reach the radial component

R,

V

values at steady-state cutting process by an amount determined by

made from the relation jTdn

B v

Where

- cutting speed.

1000

Example. The diameter d of the workpiece is 40 mm, the number p of the part revolutions is 600 rpm, the linear velocity V at the maximum diameter of 75.36 m / min, the If angle in terms of the cutter is 45 °, the cutting depth t when turning 3 mm, length surface pe / 01t Ud

under 4.23 mm, distance 1 - - 22.8 mm, time delay Cz

 V 005

(experimentalV min

total value) 620 N,. With 845 N P:, “e 1200 N, p ;,“ 800 N.

The use of chip separation method will reduce the power consumed by the crushing process by about 1.5-2 times, significantly reduce energy consumption, as well as increase the reliability and durability of devices designed for mechanical chip splitting due to reduced efforts

P division into elements

P division into elements

Claims (1)

Invention Formula P division into elements The chip separation method, according to which, during the processing, the radial component of the cutting force is controlled and periodically applied to the cutting surface is a groove, within which chip separation is carried out, characterized in that, in order to reduce the energy costs of chip separation, the groove is applied delay in the time required for a half turn of the workpiece from the moment the minimum value of the radial component of the cutting force is reached. R Compiler A.Kornilov Editor M.Tovtin Tehred M.DIDYK Proofreader M.Demchik Order 5147/10 Circulation 969 Subscription VNIIPI USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Pro : Vostenveno-11oligraphic enterprise, Uzhgorod, st. Project, 4 Fie.2 I FIG.