CN203292555U

CN203292555U - Multifunctional drill

Info

Publication number: CN203292555U
Application number: CN2013203624296U
Authority: CN
Inventors: 王必永; 于忠光; 彭荣发
Original assignee: Wuxi Guohong Measuring & Cutting Tools Co Ltd
Current assignee: Guohong Tools System Wuxi Co ltd
Priority date: 2013-06-24
Filing date: 2013-06-24
Publication date: 2013-11-20
Anticipated expiration: 2023-06-24

Abstract

The utility model discloses a multifunctional drill. The multifunctional drill comprises a cutter handle, a cutter groove and a drill tip structure; the drill tip structure comprises a first drill tip, a second drill tip and a third drill tip; the first drill tip is arranged in the middle of the drill tip structure; the second drill tip and the third drill tip are arranged on bilateral sides of the first drill tip; the height of the first drill tip is higher than the height of the second drill tip and the third drill tip. The angle of the first drill tip is 90 degrees and the angles of the second drill tip and the third drill tip are 70 degrees. According to the multifunctional drill which has three drill tips which are formed by four sides and three blades, the middle drill tip which has the angle value of 90 degrees can drill holes, the two drill tips which are arranged on sides and have the angle values of 70 degrees can be used for trimming burrs on the unthreaded hole wall, a procedure of manually removing the burrs is saved when workpieces are machined, the machined orifices are smooth, the drilling time is saved by 20 %, the orifice quality is improved, the cutter service life is prolonged, and the production cost is reduced.

Description

A kind of Multifunctional drill

Technical field

The utility model relates to the machining tool technical field, relates in particular to a kind of Multifunctional drill.

Background technology

Common drill bit forms an apex point by two face one swords, when the similar plastics product of processing, can only play the function of boring, the product aperture burr that process and tartar need manual burr and the tartar who removes aperture, so add man-hour just two operations of needs complete the processing to a workpiece, waste time and energy like this, cost is higher.

The utility model content

In order to overcome the problems referred to above, the utility model provides a kind of Multifunctional drill with three apex points that are comprised of four sides three swords, makes drill bit in boring, remove burr and the tartar in aperture, and is time saving and energy saving, reduces costs.

The purpose of this utility model is carried out specific implementation by the following technical programs:

A kind of Multifunctional drill, comprise handle of a knife, cutter groove and apex point structure, described apex point structure comprises the first apex point, the second apex point and the 3rd apex point, described the first apex point is positioned at the middle part of apex point structure, the second apex point and the 3rd apex point are distributed in the both sides of the first apex point, and the height of described the first apex point is higher than the height of the second apex point and the 3rd apex point.

Described the first bit tip angle is 90 °, and the second bit tip angle and the 3rd bit tip angle are 70 °.

The indent angle of described the second apex point and the 3rd apex point is 20 °

Aspect ratio second apex point of described the first apex point and the high 0.608mm of the 3rd apex point.

Between described the second apex point and the 3rd apex point and the first apex point, be provided with transition arc, the radius of described transition arc is 0.8mm.

A kind of Multifunctional drill of the utility model is by the Multifunctional drill of four sides three apex points forming of three swords, and this cutter can be that 90 ° of apex points are holed by an angle value at middle part, and two angle values on limit are that 70 ° of apex points are for smoothing hole wall burr.During processing work, save the operation of one manual deburring, the aperture of processing is very smooth and saved 20% drilling time, has not only improved the aperture quality after adopting this kind of cutter, has also extended cutter life simultaneously, has reduced manufacturing cost.

The accompanying drawing explanation

Below according to drawings and embodiments the utility model is described in further detail.

Fig. 1 is the overall structure schematic diagram of the described a kind of Multifunctional drill of the utility model embodiment;

Fig. 2 is the apex point structure enlarged drawing of the described a kind of Multifunctional drill of the utility model embodiment.

In figure: the 1-handle of a knife; 2-cutter groove; 3-the first apex point; 4-the second apex point; 5-the 3rd apex point; The 6-transition arc; A-the second bit tip angle and the 3rd bit tip angle; B-the first bit tip angle; C-indent angle.

The specific embodiment

As shown in Figure 1-2, the described a kind of Multifunctional drill of the utility model embodiment, comprise handle of a knife 1, cutter groove 2 and apex point structure, the apex point structure comprises the first apex point 3, the second apex point 4 and the 3rd apex point 5, the first apex point 3 is positioned at the middle part of apex point structure, the second apex point 4 and the 3rd apex point 5 are distributed in the both sides of the first apex point 3, aspect ratio second apex point 4 of described the first apex point 3 and the high 0.608mm of height of the 3rd apex point 5, the indent angle c of the second apex point 4 and the 3rd apex point 5 is 20 °, the first bit tip angle b is 90 °, and the second bit tip angle and the 3rd bit tip angle a are 70 °.Between the second apex point 4 and the 3rd apex point 5 and the first apex point 3, be provided with transition arc 6, the radius of described transition arc 6 is 0.8mm.

Finally it should be noted that: the foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, although with reference to previous embodiment, the utility model is had been described in detail, for a person skilled in the art, it still can be modified to the technical scheme that aforementioned each embodiment puts down in writing, or part technical characterictic wherein is equal to replacement.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.

Claims

1. Multifunctional drill, it is characterized in that: comprise handle of a knife, cutter groove and apex point structure, described apex point structure comprises the first apex point, the second apex point and the 3rd apex point, described the first apex point is positioned at the middle part of apex point structure, the second apex point and the 3rd apex point are distributed in the both sides of the first apex point, and the height of described the first apex point is higher than the height of the second apex point and the 3rd apex point.

2. a kind of Multifunctional drill according to claim 1, it is characterized in that: described the first bit tip angle is 90 °, the second bit tip angle and the 3rd bit tip angle are 70 °.

3. a kind of Multifunctional drill according to claim 1 and 2, it is characterized in that: the indent angle of described the second apex point and the 3rd apex point is 20 °.

4. a kind of Multifunctional drill according to claim 1 and 2, is characterized in that: aspect ratio second apex point of described the first apex point and the high 0.608mm of the 3rd apex point.

5. a kind of Multifunctional drill according to claim 1 and 2, it is characterized in that: between described the second apex point and the 3rd apex point and the first apex point, be provided with transition arc, the radius of described transition arc is 0.8mm.