SU1217596A1 - Apparatus for cutting internal thread with cutting tool - Google Patents

Description

I

The invention relates to metal cutting, in particular to threading on radial drilling, vertical coordinate boring and milling machines.

The purpose of the invention is to expand the technological capabilities of the device, achieved due to the possibility of thread cutting in ynot and expanding the range of threading and threading.

The drawing shows the proposed device, a General view.

A device for cutting an internal thread with a cutter contains a shank 1, a bearing 2 mounted on it with a holder 3 fixed on it, on which is placed a setting mechanism for the depth of the thread being cut in the form of a pivotally mounted double-arm lever with a fork 4, one shoulder of which is made in the form of a handle 5 and the other is rigidly connected with a self-aligning threaded segment 6. Segment 6 interacts with a coping screw 7, made in the form of a sleeve rigidly mounted on the housing 8 of the device with a tool holder, with the housing 8

Editor A.Revin

Compiled by A.Klimov Tehred O.Netse

1039/17

Circulation 1000 Subscription

VNIIPI USSR State Committee

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

Branch PPP Patent, Uzhgorod, st. Project, 4

17596. 2

limited from turning around the axis of the shank by means of key 9, but has the possibility of axial movement.

5 The device operates as follows.

The hole of the workpiece is set strictly along the axis of rotation of the spindle of the machine, then into the spindle

 The machine is equipped with a tool for cutting a thread with a cutter. At the same time, a clamp 10 with an anvil 11 is placed on the spindle head of the machine, necessary to keep it from turning

15 of the handle 5, then the depth of thread cutting is set by lifting the machine table or lowering the spindle and setting the housing 8 with the tool holder to a predetermined depth of the thread being cut, while entering segment 6 in contact with the cam, fixing the handle J to the ledge of the abutment 11. Turning the machine on, thread cutting is performed. Then, the CTSVEOK is turned off and, using the chuck of the chuck or the table of the machine, the cutter is engaged with the part. The subsequent threading process is continued in the same way.

thirty

Proofreader I. Muska

Claims (1)

DEVICE FOR CUTTING INTERNAL THREADS WITH A CUTTER, containing a shank and a housing mounted with axial movement with a tool holder and a screw copy pair in the form of a screw and nut rigidly connected to the housing, characterized in that, in order to expand technological capabilities, the device is equipped with a setting mechanism for the depth of the thread, representing a two-arm lever with a fork mounted on the shank with the possibility of rotation, one shoulder of the lever is made in the form of a handle, and the other is rigidly connected ano nut formed as a segment. ¹