CN220278499U

CN220278499U - Novel extrusion tap with dual-purpose external groove

Info

Publication number: CN220278499U
Application number: CN202322295278.3U
Authority: CN
Inventors: 龚兴
Original assignee: XIAMEN YUANXING PRECISION TOOL CO Ltd
Current assignee: XIAMEN YUANXING PRECISION TOOL CO Ltd
Priority date: 2023-08-25
Filing date: 2023-08-25
Publication date: 2024-01-02
Anticipated expiration: 2033-08-25

Abstract

The utility model provides a novel extrusion tap with a dual-purpose outer groove, which comprises a handle part and a cutting part which are connected, wherein the cutting part is provided with a cutting edge, the end face of the handle part is provided with a plurality of liquid inlet grooves, the liquid inlet grooves extend from the center to the edge of the end face, and the extending parts are all not crossed; the outer wall of the extrusion tap is further provided with a plurality of diversion trenches which are respectively communicated with the liquid inlet groove, and the diversion trenches extend from the head end to the tail end. The novel extrusion tap with the dual-purpose outer groove is stable in structure and can effectively guarantee the cooling effect and the lubricating effect.

Description

Novel extrusion tap with dual-purpose external groove

Technical Field

The utility model relates to the technical field of tap tools, in particular to a novel extrusion tap with a dual-purpose outer groove.

Background

The extrusion tap is a thread tool for processing internal threads by utilizing the metal plastic deformation principle, and when the extrusion tap is used, cooling liquid is matched for cooling so as to ensure the protection and the processing precision of the tap.

Traditional extrusion screw tap often runs through along the center and sets up a cooling hole and cooperate and set up a plurality of oil guide groove at cutting edge portion and cool off or lubricate, but above structure has following defect:

1. the structure with the cooling holes inside can cause the strength of the whole tap to be reduced, and particularly the blade part is easy to break during high-speed rotary cutting;

2. when the through hole is machined, the cooling liquid or the lubricating liquid is easy to directly jet out of the through hole from the center, and most of the cooling liquid or the lubricating liquid cannot be guaranteed to pass through the inner wall of the through hole so as to achieve good cooling and lubricating effects on the tap.

In view of this, the present inventors have invented a novel extrusion tap with dual-purpose external flutes that is structurally stable and can effectively ensure cooling and lubrication effects.

Disclosure of Invention

The utility model aims to provide a novel extrusion tap with a dual-purpose outer groove, which can be firm in structure and can effectively ensure a cooling effect and a lubricating effect.

In order to achieve the above purpose, the present utility model adopts the following technical scheme:

the novel extrusion tap with the dual-purpose outer groove comprises a handle part and a cutting part which are connected, wherein a cutting edge is arranged on the cutting part, a plurality of liquid inlet grooves are formed in the end face of the handle part, the plurality of liquid inlet grooves extend from the center of the end face to the edge, and the extending parts are not crossed; the outer wall of the extrusion tap is further provided with a plurality of diversion trenches which are respectively communicated with the liquid inlet groove, and the diversion trenches extend from the head end to the tail end.

As a further improvement, the number of the liquid inlet tanks and the diversion trenches is four, and the four liquid inlet tanks are cross-shaped on the end face.

As a further improvement, the number of the liquid inlet tanks and the diversion trenches is three, and the included angle between every two adjacent liquid inlet tanks is 120 degrees.

As a further improvement, the width range of the liquid inlet groove and the diversion trench is 0.5 cm-1 cm.

As a further improvement, the depth range of the liquid inlet groove and the diversion trench is 0.5 cm-1 cm.

Compared with the prior art, the utility model has the beneficial effects that:

1. according to the novel extrusion tap with the dual-purpose outer groove, disclosed by the utility model, the whole body of the novel extrusion tap is provided with the liquid inlet groove and the flow guide groove which are arranged on the outer wall of the tap, so that a flow channel which extends from the center of the end face to the tail end of the cutting part is formed, and the mode of feeding liquid from the outside of the tap is realized; on the other hand, the mode that the liquid flows through the outside of the tap and directly contacts with the inner wall of the hole to be processed can also directly and fully cool the inner wall of the hole or directly lubricate the outer wall of the tap, so that the tap is not only suitable for two modes of cooling liquid or lubricating liquid, but also is more suitable for working scenes of processing the through hole, and the tap is ingenious in overall structural design and easy to operate in function.

2. According to the novel extrusion tap with the dual-purpose outer groove, the liquid inlet groove and the diversion groove adopt proper widths, so that cooling liquid or lubricating liquid can be conveniently fed from the end part, the liquid is prevented from being blocked by the liquid inlet, and the whole liquid can flow more smoothly by adopting the same widths of the liquid inlet groove and the diversion groove.

3. The liquid inlet groove and the diversion trench of the novel extrusion tap with the dual-purpose outer groove can effectively ensure the whole liquid inlet amount by adopting proper depth, meanwhile, inconvenient processing caused by too deep liquid inlet groove and diversion trench can also enable the whole liquid to flow more smoothly by adopting the same depth.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the construction of a novel extrusion tap with dual purpose external flutes of the present utility model;

FIG. 2 is a schematic view of the end face of a novel extrusion tap with dual purpose external flutes showing the shank portion of the present utility model.

Description of the main reference signs

10. A handle; 11. a liquid inlet tank; 20. a cutting portion; 21. a cutting edge; 30. and a diversion trench.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Referring to fig. 1 to 2, a novel extrusion tap with dual-purpose external grooves comprises a handle and a cutting part which are connected, wherein a cutting edge is arranged on the cutting part, a plurality of liquid inlet grooves are formed in the end face of the handle, each liquid inlet groove extends from the center to the edge of the end face, and the extending parts are not crossed; the outer wall of the extrusion tap is further provided with a plurality of diversion trenches which are respectively communicated with the liquid inlet groove, and the diversion trenches extend from the head end to the tail end.

The whole flow channel extending from the center of the end face to the tail end of the cutting part is formed through the liquid inlet groove and the diversion groove which are arranged on the outer wall of the tap, so that the mode of feeding liquid from the outside of the tap is realized, and compared with the traditional mode of feeding liquid from the inside, on one hand, the strength of the tap can be effectively improved, and the safety risk of fracture during high-speed cutting is reduced; on the other hand, the mode that the liquid flows through the outside of the tap and directly contacts with the inner wall of the hole to be processed can also directly and fully cool the inner wall of the hole or directly lubricate the outer wall of the tap, so that the tap is not only suitable for two modes of cooling liquid or lubricating liquid, but also is more suitable for working scenes of processing the through hole, and the tap is ingenious in overall structural design and easy to operate in function.

Referring to fig. 1 to 2, the number of the liquid inlet tanks and the diversion trenches is four, and the four liquid inlet tanks are cross-shaped on the end surface. The mode has a large number of flow channels, is suitable for large-flow requirements when processing large-aperture through holes or blind holes, and meanwhile, the cross-shaped structure is also beneficial to ensuring stable and uniform flow distribution. In addition, as the flow demand is greater, more flow channel center diffusion structures may be employed.

In addition, in another embodiment, the number of the liquid inlet tanks and the diversion trenches is three, and the included angle between every two adjacent liquid inlet tanks is 120 degrees. The flow channel number of the method is small, so that the method is suitable for flow requirements when processing through holes or blind holes with normal aperture or small aperture, and is beneficial to ensuring stable and uniform flow distribution; besides, when the flow demand is smaller, a two-runner structure in a straight shape can be adopted.

Referring to fig. 1 and 2, the width of the liquid inlet groove and the width of the flow guiding groove are in the range of 0.5 cm-1 cm, preferably, the width is 0.15cm, and the liquid inlet groove and the flow guiding groove can be used for conveniently feeding cooling liquid or lubricating liquid from the end part by adopting a proper width, so that the liquid is prevented from being blocked by the liquid inlet, and the whole liquid can flow more smoothly by adopting the same width.

Further, the depth range of the liquid inlet groove and the diversion trench is 0.5 cm-1 cm. Preferably, the depth is 0.15cm, the whole liquid inlet amount can be effectively ensured by adopting the proper depth, meanwhile, inconvenient processing caused by too deep liquid inlet is avoided, and the whole liquid can flow more smoothly by adopting the same depth of the liquid inlet groove and the diversion trench.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A novel extrusion tap with dual-purpose external groove, its characterized in that: the cutting device comprises a handle and a cutting part which are connected, wherein a cutting edge is arranged on the cutting part, a plurality of liquid inlet tanks are formed in the end face of the handle, the liquid inlet tanks extend from the center to the edge of the end face, and the extending parts are not crossed; the outer wall of the extrusion tap is further provided with a plurality of diversion trenches which are respectively communicated with the liquid inlet groove, and the diversion trenches extend from the head end to the tail end.

2. The novel extrusion tap with dual purpose external flutes of claim 1, wherein: the number of the liquid inlet tanks and the flow guide tanks is four, and the four liquid inlet tanks are cross-shaped on the end face.

3. The novel extrusion tap with dual purpose external flutes of claim 1, wherein: the number of the liquid inlet tanks and the diversion trenches is three, and the included angle between every two adjacent liquid inlet tanks is 120 degrees.

4. A novel extrusion tap with dual purpose external flutes according to any of claims 1 to 3, wherein: the width range of the liquid inlet groove and the diversion trench is 0.5 cm-1 cm.

5. A novel extrusion tap with dual purpose external flutes according to any of claims 1 to 3, wherein: the depth range of the liquid inlet groove and the diversion trench is 0.5 cm-1 cm.