CN212552102U

CN212552102U - Tool for taking broken screw tap

Info

Publication number: CN212552102U
Application number: CN202021033232.4U
Authority: CN
Inventors: 王世敏; 李鸿
Original assignee: Guizhou Hangrui Aviation Precision Parts Manufacturing Co ltd
Current assignee: Guizhou Hangrui Aviation Precision Parts Manufacturing Co ltd
Priority date: 2020-06-08
Filing date: 2020-06-08
Publication date: 2021-02-19
Anticipated expiration: 2030-06-08

Abstract

A tool for taking a broken screw tap comprises a hexagonal head, a polished rod and a plug pin; the hexagonal head is fixedly connected with one end of the polish rod, the other end of the polish rod is provided with plug pins, and the plug pins are inserted into the broken screw tap. The utility model discloses can take out the screw tap of rupture in the work piece under the intact circumstances of assurance work piece, reduce cost.

Description

Tool for taking broken screw tap

Technical Field

The utility model relates to a get instrument of disconnected screw tap especially relates to a get instrument that disconnected screw tap is greater than or equal to M12.

Background

The screw tap is a common hardware tool, is usually used for machining cylindrical internal threads on workpieces, is the most main tool for machining threads by manufacturing operators, is used for a long time and in large quantities in machining, and is a tool for manufacturing the internal threads in a large quantity.

In the process of machining internal threads, the tap is usually broken due to 1) too small tapping bottom hole, 2) too blunt tap, 3) too large tap wrench and large torque, the hand of an operator is insensitive and often the tap is not clamped and can not be sensed, the tap is broken by continuous pulling, 4) the cuttings in the chip groove of the tap are not removed in time, particularly the materials with high toughness, the cuttings are blocked in the hole, 5) the materials with high toughness such as stainless steel and the like are not used for cooling lubricating liquid during tapping, a workpiece is bitten by the tap, 6) the tap is inclined, the single side of the tap is too large in stress, 7) when the tap is tapped by a blind hole, the tip of the tap is abutted against the bottom of the hole, the tap is still rotated, the tap is broken and the like, and the broken situation frequently occurs, and the common solution is drilling, clamping and screwing out by a pliers or knocking and. However, these conventional methods may fail, may result in scrapping of the entire workpiece, and may be costly.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve how to take out the screw tap of rupture in the work piece under the intact circumstances of assurance work piece, reduce cost is the technical problem who urgently needs the solution among the prior art at present.

In order to solve the technical problem, the utility model discloses a following technical scheme:

a tool for taking a broken screw tap comprises a hexagonal head, a polished rod and a plug pin; the hexagonal head is fixedly connected with one end of the polish rod, the other end of the polish rod is provided with plug pins, and the plug pins are inserted into the broken screw tap.

The beneficial effect of adopting above-mentioned technical scheme is:

the utility model discloses can take out the screw tap of rupture in the work piece under the intact circumstances of assurance work piece, reduce cost.

Drawings

Fig. 1 is a schematic view of the broken tap structure of the present invention.

Fig. 2 is a bottom view of the drawing.

In the figure: 1-hexagonal head, 2-polished rod, 3-plug pin, 4-broken screw tap and 5-workpiece.

Fig. 3 is a schematic view of a broken tap tool.

Fig. 4 is a left side view of fig. 3.

Fig. 5 is a right side view of fig. 3.

In the figure: 1-hexagonal head, 2-polish rod, 3-pin.

Fig. 6 is a schematic view of a broken tap structure in tapping on a workpiece.

Fig. 7 is a bottom view of fig. 6.

In the figure: 4-breaking screw tap and 5-workpiece.

FIG. 8 is a schematic view of a broken tap in its perfect tap configuration.

Fig. 9 is a top view of fig. 8.

Fig. 10 is a schematic view of a broken tap structure of the broken tap.

Fig. 11 is a bottom view of fig. 10.

FIG. 12 is a schematic diagram of a broken tap preparation structure.

In the figure: 3-pin, 4-broken tap and 5-workpiece.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings:

a tool for taking a broken screw tap comprises a hexagonal head 1, a polished rod 2 and a plug pin 3; the hexagonal head 1 is fixedly connected with one end of the polish rod 2, the other end of the polish rod 2 is provided with a plug pin 3, and the plug pin 3 is inserted into the broken tap 4. In tapping on a workpiece, the tap breaks off in the workpiece 5, the broken tap section being approximately flush with the thread mouth end face. The plug-in pins 3 are aligned with the holes of the screw tap and inserted downwards, the hexagonal head 1 is reversely rotated anticlockwise by a wrench, and the screw tap 4 can be rotated out under the driving of the plug-in pins 3.

Claims

1. A tool for taking a broken screw tap is characterized in that: the device comprises a hexagonal head (1), a polish rod (2) and a plug pin (3); the hexagonal head (1) is fixedly connected with one end of the polish rod (2), the other end of the polish rod (2) is provided with the plug pin (3), and the plug pin (3) is inserted into the broken screw tap (4).