CN211218847U

CN211218847U - Hard alloy drilling and chamfering combined tool

Info

Publication number: CN211218847U
Application number: CN201922096088.2U
Authority: CN
Inventors: 张延文
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-29
Filing date: 2019-11-29
Publication date: 2020-08-11
Anticipated expiration: 2029-11-29

Abstract

The utility model belongs to the technical field of the machining cutter, especially, relate to a carbide drilling chamfer gang tool. Including cutter body, drilling blade, chamfer blade and set up the handle of a knife at cutter body tip, be provided with the chip groove on the cutter body, the chip groove is the heliciform setting, the one end that the handle of a knife was kept away from to the chip groove is the inclined plane setting, be provided with drilling blade mounting hole on the inclined plane, the middle part that the one end of handle of a knife was kept away from to the chip groove is provided with location blade mounting hole, the mounting screw has location blade on the location blade mounting hole, still be provided with chamfer blade mounting hole on the lateral wall of chip groove, chamfer blade mounting hole is close to the handle of a knife setting. The utility model discloses an utilize location blade, drilling blade and chamfer blade to realize the integrated into one piece of intermediate positioning, both sides drilling, last chamfer, the effectual speed that has changed the machine tooling of body, simultaneously, the utility model discloses a structure of combination, and then convenient the change, reduction in production cost.

Description

Hard alloy drilling and chamfering combined tool

Technical Field

The utility model belongs to the technical field of the machining cutter, especially, relate to a carbide drilling chamfer gang tool.

Background

When a mechanical part is machined, the hole machining generally needs to perform orifice chamfering, and at present, three machining modes are mainly adopted: firstly, drilling holes, and then replacing a chamfering cutter to chamfer the orifices at two ends; secondly, chamfering the orifices at two ends by using a portable chamfering cutter machine after drilling; and thirdly, after drilling, utilizing two fixed blades at the rear end to interpolate and mill chamfer angles of orifices at two ends. The first processing mode has the problems of tool changing and secondary clamping, not only is the production efficiency low, but also the chamfering and drilling are not concentric easily, and the defective rate is high; in the second processing mode, chamfering is carried out by a portable chamfering machine, and the surface quality of the chamfering machine cannot meet the requirement of high-quality products; the third processing mode needs the numerical control machine to walk the interpolation mode of milling and carry out the chamfer of both ends drill way, and machining efficiency is not high, and the cutter rigidity is relatively poor, influences the processing surface quality. Especially when the requirements on chamfering precision and efficiency are high, the three machining modes can not better meet the two requirements at the same time.

SUMMERY OF THE UTILITY MODEL

The utility model discloses to the technical problem that foretell machining exists, provide a reasonable in design, simple structure, low cost and facilitate the use, effectively improve cutter life's carbide drilling chamfer gang tool.

In order to achieve the purpose, the utility model discloses a technical scheme do, the utility model provides a carbide drilling chamfer gang tool, including cutter body, drilling blade, chamfer blade and set up the handle of a knife at the cutter body tip, be provided with the chip groove on the cutter body, the chip groove is the heliciform setting, the chip groove is kept away from the one end of handle of a knife and is the inclined plane setting, be provided with drilling blade mounting hole on the inclined plane, the middle part that the one end of handle of a knife was kept away from to the chip groove is provided with location blade mounting hole, there is the location blade location screw mounting on the location blade mounting hole, and the terminal surface of adjacent location blade is 140 contained angle settings, still be provided with chamfer blade mounting hole on the lateral wall of chip groove, chamfer blade mounting hole is close to the handle of a knife setting.

Preferably, the drilling blade, the chamfering blade and the positioning blade are all mechanically clamped blades.

Preferably, the inclination angle of the inclined surface is between 10 ° and 20 °.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. the utility model discloses a carbide drilling chamfer gang tool utilizes location blade, drilling blade and chamfer blade to realize the integrated into one piece of intermediate location, both sides drilling, last chamfer, and the effectual speed that has changed the machine tooling of body, simultaneously, the utility model discloses a structure of combination, and then convenient change reduction in production cost.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor.

Fig. 1 is a schematic structural diagram of a cemented carbide drilling and chamfering combined tool provided in embodiment 1;

in the above figures, 1, a cutter body; 11. a chip pocket; 111. a bevel; 12. drilling a blade mounting hole; 13. chamfering the blade mounting hole; 2. a knife handle; 3. drilling a blade; 4. chamfering the blade; 5. and positioning the blade.

Detailed Description

In order to make the above objects, features and advantages of the present invention more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the present invention is not limited to the limitations of the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1, the present embodiment is directed to providing a tool capable of being integrally formed in drilling

In order to achieve the above object, the hard alloy drilling and chamfering combined tool provided by the present embodiment includes a tool body 1, a drilling blade 3, a chamfering blade 4, and a tool shank 2 disposed at an end of the tool body 1, and the tool body 1 is provided with a chip pocket 11, so that the tool body 1 and the tool shank 2 are combined to have a twist drill shape, unlike the conventional troublesome drill which uses sharpness of its end to drill a hole, in the present embodiment, a replaceable blade is used to drill a hole.

Specifically, the end of the chip pocket 11, which is far away from the holder 2, is provided with the inclined surface 111, so that a design similar to a notch is formed at the end of the cutter body 1, and the design aims at two purposes, one purpose is to facilitate installation of the drilling blade 3, and the other purpose is to improve the installation strength of the drilling blade 3. In order to optimize the corresponding design, the inclination angle of the inclined surface 111 is between 10 ° and 20 °, in the present embodiment 15 °. For this purpose, a drill insert mounting hole 12 is provided in the inclined surface 111.

Considering that the drilling blades 3 are positioned on two sides of the cutter body 1, if the drilling operation is directly performed, the blades may be broken, for this reason, a positioning blade mounting hole (not shown in the figure) is formed in the middle of one end, away from the cutter handle 2, of the chip pocket 11, a positioning blade 5 is mounted on the positioning blade mounting hole through a screw, the end faces of adjacent positioning blades 5 are arranged at an included angle of 140 degrees, specifically, the middle of the chip pocket is grooved, and then drilling is performed, so that the end faces of the mounted positioning blades 5 are arranged at an included angle of 140 degrees. The positioning blade 5 is arranged to enable the end part of the cutter body 1 to form a pointed design, and further, the purpose of positioning and drilling is achieved.

For convenience of chamfering, chamfering blade mounting holes 13 are further formed in the side walls of the chip pockets 11, and the chamfering blade mounting holes 13 are formed close to the tool shank 2. It should be noted here that the drilling blade 3, the chamfering blade 4, and the positioning blade 5 are all machine-clamped blades, and then are mounted by using tapered countersunk head screws, and in addition, in order to further improve the stability and convenience of fixing the drilling blade 3, the chamfering blade 4, and the positioning blade 5, positioning grooves may be provided at corresponding mounting holes to facilitate mounting.

Through the arrangement, the positioning blade 5, the drilling blade 3 and the chamfering blade 4 are used for realizing the integrated assembly forming of middle positioning, two-side drilling and final chamfering, and deep holes within the range of 50-500 mm can be drilled.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may use the above-mentioned technical contents to change or modify the equivalent embodiment into equivalent changes and apply to other fields, but any simple modification, equivalent change and modification made to the above embodiments according to the technical matters of the present invention will still fall within the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a carbide drilling chamfer gang tool, includes cutter body, drilling blade, chamfer blade and sets up the handle of a knife at cutter body tip, be provided with the chip groove on the cutter body, the chip groove is the heliciform setting, its characterized in that, the chip groove is kept away from the one end of handle of a knife and is the inclined plane setting, be provided with drilling blade mounting hole on the inclined plane, the middle part that the one end of handle of a knife was kept away from to the chip groove is provided with location blade mounting hole, the last mounting screw of location blade mounting hole has the location blade, and the terminal surface of adjacent location blade is 140 contained angles settings, still be provided with chamfer blade mounting hole on the lateral wall of chip groove, chamfer blade mounting hole is close to the handle of a knife setting.

2. The cemented carbide drilling and chamfering composite tool as claimed in claim 1, wherein the drilling, chamfering and locating inserts are mechanically clamped inserts.

3. The cemented carbide drilling and chamfering cluster tool of claim 2, wherein the bevel is inclined at an angle between 10 ° and 20 °.