CN216502544U

CN216502544U - Guide pillar countersink drill for machining and forming curved surface countersink

Info

Publication number: CN216502544U
Application number: CN202123161616.1U
Authority: CN
Inventors: 余苏妍; 黄丹平; 胡杨健; 刘峰
Original assignee: Jiangxi Jiehao Carbide Tool Co ltd
Current assignee: Jiangxi Jiehao Carbide Tool Co ltd
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2022-05-13
Anticipated expiration: 2031-12-15

Abstract

The utility model relates to the technical field of countersinks, and discloses a guide post countersink drill for processing and forming a curved countersink, which solves the problems that the conventional common guide post type cutter can only process vertically, cannot process at a swinging angle and cannot ensure that the dimple of the countersink is a regular circle at present, and comprises a cutter body, a cutting edge, a guide post, a threaded handle, a through hole, a curved surface, a connecting hole, a bearing and a connecting rod, wherein the cutting edge is formed at one end of the cutter body, the guide post is connected at one end of the cutting edge, the threaded handle is connected at the end of the cutter body far away from the guide post, and the through hole is arranged at one side of the cutter body close to the threaded handle in a penetrating way. The shape of the support cannot be elliptic, dimple trimming can be performed, and supporting force is guaranteed.

Description

Guide pillar countersink drill for machining and forming curved surface countersink

Technical Field

The utility model belongs to the technical field of countersinks, and particularly relates to a guide pillar countersink drill for machining and forming a curved-surface countersink.

Background

Countersinks, i.e. countersinks, are also known as chamfers, pit cutters, chamfers, drills for countersinking conical countersinks. The method can be used for processing orifice deburring, chamfering and sinking head nest on the premise that a guide hole is needed, subsequent processing can be carried out, and the taper conical hole is large at the top and small at the bottom; placing a taper flat head screw, and processing a counter bore and a taper hole socket; the deburring of the orifice trimming is to trim the edge of the orifice lightly and remove the edge fillet of the orifice.

The processing of curved surface dimple at aircraft covering junction is generally used for carbon fiber material surface dimple, little surplus metal material surface dimple, and what traditional dimple used is that ordinary cylinder type guide pillar processing, is 3 tooth designs (as figure 1) generally, and ordinary cylinder type guide pillar is vertical parts processing, can not carry out pivot angle processing, can only provide the holding power, and processing on curved surface, face of cylinder, the dimple generally presents the ellipse type, and the nest that can't guarantee the dimple is regular circle.

SUMMERY OF THE UTILITY MODEL

Aiming at the situation, in order to overcome the defects of the prior art, the utility model provides the guide pillar socket drill for processing and forming the curved surface socket, and the problem that the socket of the socket cannot be guaranteed to be a perfect circle because only vertical processing and angle swinging processing can be carried out in the conventional common guide pillar type tool processing at present is effectively solved.

In order to achieve the purpose, the utility model provides the following technical scheme: the utility model provides a curved surface dimple machine-shaping guide pillar dimple bores, includes blade, cutting edge, guide pillar, screw thread handle, through-hole, curved surface, connecting hole, bearing and connecting rod, blade one end is formed with the cutting edge, and cutting edge one end is connected with the guide pillar, and the blade is kept away from guide pillar one end and is connected with the screw thread handle, and the blade is close to screw thread handle one side and runs through and has seted up the through-hole.

Preferably, the outer end of the guide post is formed with a curved surface.

Preferably, the diameter D of the maximum position of the knife body is 12.7 mm; the total length L of the knife body, the guide pillar and the threaded handle is 32 mm; the diameter D1 of the maximum part of the guide post is 6.1 mm; the radius of the R part of the guide pillar is 2.2mm, and the radius of the R1 part of the guide pillar is 10.9 mm; the angle value a is 80 °; the front angle a is 5 degrees; rear angle a1 is 15 °; the front and rear edge widths W, W1 are 0.3mm and 2.6mm, respectively.

Preferably, a connecting hole is formed in one end of the cutter body, and a bearing is embedded in the connecting hole.

Preferably, one end of the guide post is connected with a connecting rod, and one end of the connecting rod is embedded in the bearing.

Preferably, the bearing is made of high-carbon chromium bearing steel.

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

(1) the utility model adopts the design of the curved surface type guide pillar and the multi-tooth structure, the multi-tooth has large contact surface with the part during processing, the supporting force is increased, the finishing effect is better, the service life is prolonged, the processing on the curved surface and the cylindrical surface is solved, the dimple of the dimple is ensured to be a regular circle, the dimple cannot be in an elliptical shape, the dimple finishing can be carried out, and the supporting force is also ensured;

(2) the novel countersink correcting tool is strong in universality, a countersink can be corrected, the service life of the tool is prolonged, the cost is saved, and the efficiency is improved;

(3) the novel setting through the bearing for the cutter in the course of working, the guide pillar position can reduce and the work piece between the friction, thereby the life of extension cutter.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the principles of the utility model and not to limit the utility model.

In the drawings:

FIG. 1 is a schematic structural view of a conventional guide post type countersink;

FIG. 2 is a schematic structural view of the present invention;

FIG. 3 is a side view of the present invention;

FIG. 4 is a partial cross-sectional view of the present invention;

FIG. 5 is a schematic view of the mounting structure of the bearing of the present invention;

FIG. 6 is a schematic view of the overall structure of the present invention;

FIG. 7 is a schematic view of a blade structure according to the present invention;

FIG. 8 is a schematic view of a processing configuration of the present invention;

in the figure: 1. a blade body; 2. a cutting edge; 3. a guide post; 4. a threaded shank; 5. a through hole; 6. a curved surface; 7. connecting holes; 8. a bearing; 9. a connecting rod.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments; all other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the first embodiment, as shown in fig. 1 to 8, the utility model includes a blade 1, a cutting edge 2, a guide pillar 3, a threaded shank 4, a through hole 5, a curved surface 6, a connecting hole 7, a bearing 8 and a connecting rod 9, the cutting edge 2 is formed at one end of the blade 1, the guide pillar 3 is connected to one end of the cutting edge 2, the threaded shank 4 is connected to one end of the blade 1 away from the guide pillar 3, the through hole 5 is formed at one side of the blade 1 close to the threaded shank 4 in a penetrating manner, and the curved surface 6 is formed at the outer end of the guide pillar 3.

In the second embodiment, on the basis of the first embodiment, the maximum diameter D of the blade 1 is 12.7 mm; the total length L of the knife body 1, the guide post 3 and the threaded handle 4 is 32 mm; the maximum diameter D1 of the guide post 3 is 6.1 mm; the radius of the R part of the guide pillar 3 is 2.2mm, the radius of the R1 part of the guide pillar 3 is 10.9mm, the guide pillar is ensured to be of a curved surface type, and the curved surface countersink can be realized by swinging a certain angle; the angle value A is 80 degrees, and the angle value A is used for countersinking; the front angle a is 5 degrees, and the negative front angle ensures the cutting force of the cutter; the back angle a1 is 15 degrees, and avoidance is realized, so that the sharpness of the cutter is increased; the front and rear edge widths W, W1 are 0.3mm and 2.6mm, respectively.

In the third embodiment, on the basis of the first embodiment, one end of the cutter body 1 is provided with a connecting hole 7, a bearing 8 is embedded in the connecting hole 7, one end of the guide post 3 is connected with a connecting rod 9, one end of the connecting rod 9 is embedded in the bearing 8, and the bearing 8 is made of high-carbon chromium bearing steel and has high and uniform hardness and wear resistance; the setting of bearing 8 is conveniently passed through for the cutter is in the course of working, and 3 positions of guide pillar can reduce and the work piece between the friction, thereby the life of extension cutter.

The working principle is as follows: when using, through assembling this cutter and actuating mechanism, then process in needs dimple department, this is novel through adopting curved surface type guide pillar 3 and multiple tooth structural design, and the multiple tooth is big with the part contact surface when processing, increases its holding power, and the effect is also better on repairing, also increases its life.

Claims

1. The utility model provides a curved surface dimple machine-shaping guide pillar dimple bores, includes blade (1), cutting edge (2), guide pillar (3), screw thread handle (4), through-hole (5), curved surface (6), connecting hole (7), bearing (8) and connecting rod (9), its characterized in that: the cutting blade (2) is formed at one end of the blade (1), the guide pillar (3) is connected to one end of the cutting blade (2), the thread handle (4) is connected to one end, away from the guide pillar (3), of the blade (1), and the through hole (5) is formed in one side, close to the thread handle (4), of the blade (1) in a penetrating mode.

2. The curved face countersink machining and forming guide pillar countersink drill as claimed in claim 1, is characterized in that: the outer end of the guide post (3) is provided with a curved surface (6).

3. The curved face countersink machining and forming guide pillar countersink drill as claimed in claim 1, is characterized in that: the diameter D of the maximum position of the knife body (1) is 12.7 mm; the total length L of the knife body (1), the guide post (3) and the threaded handle (4) is 32 mm; the diameter D1 of the maximum part of the guide post (3) is 6.1 mm; the radius of the R part of the guide post (3) is 2.2mm, and the radius of the R1 part of the guide post (3) is 10.9 mm; the angle value a is 80 °; the front angle a is 5 degrees; rear angle a1 is 15 °; the front and rear edge widths W, W1 are 0.3mm and 2.6mm, respectively.

4. The curved face countersink machining and forming guide pillar countersink drill as claimed in claim 1, is characterized in that: one end of the knife body (1) is provided with a connecting hole (7), and a bearing (8) is embedded in the connecting hole (7).

5. The curved face countersink machining and forming guide pillar countersink drill as claimed in claim 1, is characterized in that: one end of the guide post (3) is connected with a connecting rod (9), and one end of the connecting rod (9) is embedded in the bearing (8).

6. The curved face countersink machining and forming guide pillar countersink drill as claimed in claim 4, is characterized in that: the bearing (8) is made of high-carbon chromium bearing steel.