CN213729809U

CN213729809U - High-performance spiral forward-inclination angle screw tap

Info

Publication number: CN213729809U
Application number: CN202022768859.0U
Authority: CN
Inventors: 王晨曦
Original assignee: Wenling Hongtai Measuring Tool Co ltd
Current assignee: Wenling Hongtai Measuring Tool Co ltd
Priority date: 2020-11-25
Filing date: 2020-11-25
Publication date: 2021-07-20
Anticipated expiration: 2030-11-25

Abstract

The utility model provides a high performance spiral anteversion angle screw tap belongs to screw tap technical field. It has solved the current problem that straight flute anteversion angle screw tap effect is not good among the conventional art. This high performance spiral anteversion screw tap, including the screw tap main part that has fixed square head, the front end of screw tap main part is equipped with the screw tap working part of processing work piece, is equipped with the changeover portion between fixed square head and the screw tap working part, be equipped with a plurality of thread cutting tooth on the screw tap working part, the screw tap working part on thread cutting tooth and the screw tap main part forms a plurality of helicla flute, and fixed square head is last and has seted up the recess that is used for the coolant liquid circulation along the axle body direction one, the recess inner wall seted up a plurality of with the hole that the helicla flute is linked together, the axis of helicla flute and screw tap main part forms angle alpha. The utility model has the advantages of high heat dissipation and high processing efficiency.

Description

High-performance spiral forward-inclination angle screw tap

Technical Field

The utility model belongs to the technical field of the screw tap, in particular to high performance spiral anteversion screw tap.

Background

The tap is a tool for processing various internal threads with medium and small sizes, has simple structure and convenient use, can be manually operated and can also work on a machine tool, and has wide application in production. Especially for small-sized internal threads, the wire is almost the only machining tool. The manual screw tap is flexible to use and low in cost, is suitable for machining of special parts and machining of internal threads in field emergency situations, is poor in effect due to the fact that the conventional straight flute anteverted angle screw tap in the conventional technology, and due to the fact that the screw tap easily generates a large amount of heat in the machining process, the temperature of the screw tap and a workpiece rises, high temperature can have negative effects on the screw tap, and finally product quality is affected.

Disclosure of Invention

The utility model aims at providing a good heat dissipation, high performance spiral anteversion angle screw tap that the accuracy is high to the above-mentioned problem that exists among the prior art.

The purpose of the utility model can be realized by the following technical proposal: the utility model provides a high performance spiral anteversion angle screw tap, is including the screw tap main part that has fixed square head, its characterized in that, the front end of screw tap main part be equipped with the screw tap working part of processing work piece, fixed square head and screw tap working part between be equipped with the changeover portion, screw tap working part on be equipped with a plurality of thread cutting tooth, thread cutting tooth and screw tap main part on screw tap working part form a plurality of helicla flute, fixed square head on and along the axle body direction seted up the recess that one is used for the coolant liquid circulation, the recess inner wall seted up a plurality of with the hole that the helicla flute is linked together, the axis of helicla flute and screw tap main part form angle alpha.

In the high-performance spiral anteversion wire, the angle formed by the spiral groove and the central axis of the tap body is 13 degrees.

In the high-performance spiral anteversion wire, the number of the spiral cutting teeth and the number of the spiral grooves are 3.

In the high-performance spiral anteversion wire, the tap body is integrally formed.

Compared with the prior art, the high-performance spiral anteversion angle tap has the following advantages:

1. through seting up a recess on the screw tap body to it is linked together with the helicla flute to open the hole from the recess, in the course of working, the coolant liquid gets into the helicla flute gradually through the recess and cools down it, greatly increased the thermal diffusivity.

2. Brings good news to difficult processing work piece, changes the cooling bath of certain angle into with original straight flute cooling bath, reduces and improves the situation of generating heat to a great extent, reduces the cutting rupture, effectual improvement tapping efficiency and precision.

Drawings

Fig. 1 is a schematic structural view of a tap body.

Fig. 2 is a schematic sectional view of the tap body.

In the figure, 1, a tap body; 2. a tap working part; 3. fixing the square head; 4. thread cutting teeth; 5. a transition section; 6. a helical groove; 7. a hole; 8. and (4) a groove.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the high-performance spiral forward-inclination-angle screw tap comprises a screw tap main body 1 with a fixed square head 3, a screw tap working part 2 for processing a workpiece is arranged at the front end of the screw tap main body 1, a transition section 5 is arranged between the fixed square head 3 and the screw tap working part 2, a plurality of thread cutting teeth 4 are arranged on the screw tap working part 2, a plurality of spiral grooves 6 are formed by the thread cutting teeth 4 and the screw tap working part 2 on the screw tap main body 1, a groove 8 for circulating cooling liquid is formed in the fixed square head 3 along the shaft direction, a plurality of holes 7 communicated with the spiral grooves 6 are formed in the inner wall of the groove 8, when in processing, the cooling liquid gradually enters the spiral grooves 6 through the grooves 8 to cool the spiral grooves 6, the heat dissipation performance is greatly increased, an angle alpha is formed by the spiral grooves 6 and the central axis of the screw tap main body 1, and the angle formed by the spiral grooves 6 and the central axis of the screw tap main body 1 is 13 degrees, spiral cutting tooth and helicla flute 6 are 3, screw tap main part 1 is integrated into one piece, in the course of working, coolant liquid and lubricating oil get into in recess 8 under the effect of centrifugal force and gravity, disperse between helicla flute 6 and spiral cutting tooth through hole 7 that is linked together with helicla flute 6, play heat dissipation and lubricated effect, prevent that the high temperature that produces in the tapping process from causing the condition of warping to the internal thread in processing hole, improve the quality of tapping, the sharp life of extension tapping, the high practicality, such operating mode brings the gospel for difficult processing work piece, change traditional straight flute cooling bath into the cooling bath of certain angle, reduce and improve the situation of generating heat in very big degree, reduce the cutting rupture, effectual improvement tapping efficiency and precision.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein may be made by those skilled in the art without departing from the spirit of the invention or exceeding the scope of the invention as defined in the accompanying claims.

Although the terms are used more often herein, the possibility of using other terms is not excluded. These terms are used merely to more conveniently describe and explain the nature of the present invention; they are to be construed in a manner that is inconsistent with the spirit of the invention.

Claims

1. A high-performance spiral anteversion tap comprises a tap body (1) with a fixed square head (3), it is characterized in that the front end of the tap main body (1) is provided with a tap working part (2) for processing a workpiece, a transition section (5) is arranged between the fixed square head (3) and the screw tap working part (2), the screw tap working part (2) is provided with a plurality of thread cutting teeth (4), the thread cutting teeth (4) and the tap working part (2) on the tap body (1) form a plurality of spiral grooves (6), a groove (8) for the circulation of cooling liquid is arranged on the fixed square head (3) along the shaft body direction, the inner wall of the groove (8) is provided with a plurality of holes (7) communicated with the spiral groove (6), the spiral groove (6) and the central axis of the tap body (1) form an angle alpha.

2. A high performance spiral anteversion tap according to claim 1, characterised in that the spiral flute (6) forms an angle of 13 degrees with the central axis of the tap body (1).

3. A high performance spiral rake tap according to claim 1, wherein said spiral cutting teeth and spiral flutes (6) are 3 in number.

4. A high performance spiral rake tap according to claim 1, characterized in that said tap body (1) is formed in one piece.