SU1202716A1 - Head to lathe - Google Patents

Description

The invention relates to metalworking and can be applied on lathes in the final machining of the internal surfaces of these parts.

The aim of the invention is to expand the technological capabilities of lathes and improve the finishing performance of the internal surfaces of the parts.

The goal is achieved by mounting the head housing on the hub of the drive gear of the gearbox and connecting the head housing to the tool holder of the machine.

FIG. 1 shows the device, a general view; in fig. 2 shows section A-A in FIG. one; in fig. 3 - diagram of the installation of the device on the machine and work; in fig. 4 is a section BB in FIG.

The body of the head 1 is mounted on a shaft 2, which is driven into rotation by the submarine pin 3. From the shaft 2, the rotation to the machining tool is transmitted through the gear train 4, and the translational movement (feed) through the lever 5 connected to the tool holder. A polishing washer 6 is used as the machining tool, which rotates from the gear 4 and the belt 7 gears.

The head shaft is installed in the front 8 and rear 9 centers of the lathe. The machining tool is mounted on the shaft 10. The installation of the head on the required size of the workpiece 11 is carried out with the help of the bracket 12.

BUT

ten

15

027162

The head works as follows.

In order to polish the inner cylindrical surface, for example, a skimmer, a driving center 8 is installed in the machine spindle, a guide pin 3 is fitted, then the workpiece 11 is fixed by cams of the 3-jaw chuck; On the shaft 2, wear a polishing head in the case of which gear-wheel gear 4 is fixed, having a hole with a shaft key 2. Ball 2 is pressed against the center 9. The lever 5 of the body is fixed in the tool holder, then the polishing washer 6 12 is exhibited on neob-- divergence processing resolution. On the iaib 6, a polishing paste is applied, the machine is turned on, the required amount of feed to the caliper and the number of revolutions of the workpiece 11 is set. Depending on the number of revolutions of the part 11, the polishing washer 6 rotates at about 4 times as large as the gear ratio of gear 4 and peJ .Ion 7 transmission and counter-rotation (relative to the washer 6) of the workpiece 11. By moving the polishing head through the lever 5 inside the workpiece 11 with the selected longitudinal feed, polishing is achieved. chnost to the required degree of purity;

The proposed device will expand the technological capabilities of the finishing treatment of the internal surfaces of parts on turning machines.

20

25

35

Figg

ttt tttsttttsh

SZ6, to

fig-3

Editor A. Shandor

Compiled by A. Kornilov

Tehred A.Kikemezey Proofreader A.T.

Order 8355/12 Circulation 1085 Subscription VNIIPI USSR State Committee

for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5

Branch PPP Patent, Uzhgorod, st. Project, 4

ft

Claims (1)

HEAD TO A TURNING MACHINE for finishing machining a workpiece fixed in a chuck, 'containing a drive shaft mounted in the center of the machine, on which the head housing with a gearbox is mounted with the possibility of axial movement, the drive link of which is connected to the drive shaft, and the driven link to the processing tool, characterized in that, in order to expand the technological capabilities of the lathe and increase the productivity of finishing, the leading link of the gearbox is made in the form of a gear with a hub, on which bearings mounted head housing, connected by means of a thrust entered into the device with the tool holder of the machine, and the drive rotation of the workpiece and the processing tool is kinematically connected with the spindle of the lathe. S3 SU „1202716 Ή FIG. 1