RU54547U1 - DEVICE FOR EXTERNAL AND INTERNAL THREAD CUTTING - Google Patents

Abstract

The invention relates to the processing of metals by cutting, in particular to devices for cutting external and internal threads.

The essence of the utility model lies in the fact that the device for cutting external and internal threads, comprising a housing with a socket for a die and a holder with shaped holes for the tool shank, additionally contains clamps for dies installed in each other, while the holder with shaped holes for the tool shank made in the form of a die - insert, the handle is equipped with a removable lock, and a cutout for the tool shank is made in the housing socket.

Description

The utility model relates to the processing of metals by cutting, in particular to devices for cutting external and internal threads by manual and mechanical means, and can be used during repair work, both in workshops and in the field

A device is known for cutting external and internal threads manually, containing handles, a housing with a clip fixed to it, and fasteners for clamping a die in the housing (RU patent No. 2098239, publ. 12.10.1997, class B 23 G 1/30).

The disadvantages of this device include the fact that it has a limited number of dies used for cutting external threads. Cannot be used for threading on a lathe.

The problem solved by the utility model is an increase in the standard sizes of the cut thread, both internal and external, and an increase in labor productivity.

The essence of the utility model lies in the fact that the device for cutting external and internal threads, comprising a housing with a socket for a die and a holder with shaped holes for the tool shank, additionally contains clamps for dies installed in each other, while the holder with shaped holes for the tool shank made in the form of a die - insert, the handle is equipped with a removable lock, and a cutout for the tool shank is made in the housing socket

Using the clips placed in the socket of the device’s case, it is possible to cut the external thread from M2 to M16, both manually and on a lathe. Using the insert-plate with shaped holes and a clamp in the device, it is possible to perform internal threading using standard taps from M2 to M16, both manually and on a lathe.

Photo 1. shows a device for cutting external and internal threads,

consisting of two handles 1, housing 2 inside of which there is a socket for clips a special cutout 3 for the shank of a thread-cutting tool for internal threading, fixing screws 4 with which clips and dies are fastened in the case, holder 5 for installing dies in the case, die - insert 6 with shaped holes for the shank of a thread-cutting tool, interchangeable lock 7 designed for reliable fastening, thread-cutting tool. Photo 1.

The device operates as follows. For cutting internal threads from M2 to M8, a die - insert 6 with shaped holes is installed in case 2, Photo 2, the thread of a thread-cutting tool is inserted into the hole, and the die - insert is tightened with screws 4. For cutting threads larger than M8, a 3-in shaped cut-out is used the housing of the device, where a thread-cutting tool is inserted and pressed by a replaceable lock 7 for taps. Photo 3.

Holders are used for cutting external threads 5. Photo 4. A thread-cutting tool (die) of the required size is inserted into the appropriate holder, then the clips are inserted into each other and inserted into the device socket, the holder is pressed by the fixing screws 4, and the latch 7 enters the notch of the thread-cutting tool ( dies) and fixes it from turning. Photo 5. When cutting M16 thread, a thread-cutting tool (die) is inserted directly into the housing socket 2, is also pressed with fixing screws 4 and fixed with a retainer 7 for dies. When the tool is prepared for work, a force is applied to the handles 1 and a thread is cut.

To thread on a lathe, using the proposed device can be as follows: the part is clamped into the lathe chuck. A device with a thread-cutting tool is brought to the surface of the part and pressed against the thread-cutting tool with a certain force, while the part is notified of rotation, and the tool is axially moved.

The device, simple in design, very compactly reduces the amount of tool used when working, both in the workplace and in the field.

Claims (1)

A device for cutting external and internal threads, comprising a housing with a socket for a die and a holder with shaped holes for the tool shank, characterized in that it further includes holders for dies, which are installed in each other, while the holder with shaped holes for the tool shank is made in the form of a die -inserts, the handle is equipped with a removable lock, and a cutout for the tool shank is made in the housing socket.