CN210878756U

CN210878756U - Bridge type boring cutter handle

Info

Publication number: CN210878756U
Application number: CN201921583421.6U
Authority: CN
Inventors: 周道俊; 范凡; 范仲舜
Original assignee: Zhejiang Younio Tools Co ltd
Current assignee: Zhejiang Younio Tools Co ltd
Priority date: 2019-09-23
Filing date: 2019-09-23
Publication date: 2020-06-30
Anticipated expiration: 2029-09-23

Abstract

The utility model provides a bridge type boring cutter handle, includes the cone section, the linkage segment, straight section and canned paragraph, the cone section is provided with the mounting hole along the axis direction, be provided with mounting groove on the linkage segment, canned paragraph top circumference array is provided with the fixed orifices, the utility model discloses light in weight, and can be stably connected with main shaft and boring cutter to can effectively provide the stability of boring cutter operation.

Description

Bridge type boring cutter handle

Technical Field

The utility model belongs to the technical field of machining instrument, concretely relates to bridge type boring cutter handle.

Background

The boring cutter handle is a necessary tool for connecting the spindle and the boring cutter, the structure of the boring cutter handle plays a vital role in the operation stability of the boring cutter, particularly in the operation process of the bridge type boring cutter, the structure of the cutter handle is particularly important, the existing bridge type boring cutter handle is often connected with the spindle insecurely and connected with the bridge type boring cutter insecurely, and therefore the operation stability of the boring cutter is affected, and in addition, the existing bridge type boring cutter handle is heavy in quality and short in service life due to the reason of materials.

SUMMERY OF THE UTILITY MODEL

The utility model aims at overcoming the deficiency of the prior art and providing a bridge type boring cutter handle with light weight and firm connection.

The technical scheme of the utility model as follows: the utility model provides a bridge type boring cutter handle, includes the cone section, the linkage segment, straight section and canned paragraph, the cone section is provided with the mounting hole along the axis direction, be provided with mounting groove on the linkage segment, canned paragraph top circumference array is provided with the fixed orifices.

Preferably, the whole tool shank is made of 20CrMnTi material.

Preferably, the interior of the cutter body is of a hollow structure.

Preferably, the taper of the taper segments is 7: 24.

Preferably, the shank length is 451.8mm and the taper segment length is 101.8 mm.

Preferably, the diameter of the radial section of the straight section is 72mm, the diameter of the top surface of the fixing section is 100mm, and the diameter of the circle where the fixing hole is located is 66.7 mm.

The utility model has the advantages that:

(1) the fixed section adopts a disc type design, so that the contact area between the fixed section and a bridge plate of the bridge type boring cutter is increased, and the connection firmness is improved;

(2) the taper of the cone section is 7:24, the contact rate of the cone surface is more than 90%, the contact area of the cone section and the main shaft is increased, and the connection firmness is improved;

(3) the handle is made of 20CrMnTi, so that the hardness is high, the wear resistance is good, the service life can be prolonged, and the overall weight of the handle is lighter due to the hollow structure design.

Drawings

Fig. 1 is a front view of the present invention;

fig. 2 is a side view of the present invention;

in the figure: 1. the taper section, 11, mounting hole, 2, linkage segment, 21, mounting groove, 3, straight section, 4, fixed section, 41, fixed orifices.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

As shown in fig. 1 and 2, a bridge type boring cutter handle comprises a cone section 1, a connecting section 2, a straight section 3 and a fixing section 4, wherein the diameter of the radial section of the straight section 3 is 72mm, the length of the cutter handle is 451.8mm, the length of the cone section 1 is 101.8mm, the taper of the cone section 1 is 7:24, the contact rate of the cone is more than 90%, the contact area between the cone section 1 and a main shaft is increased, the connection firmness is improved, the cone section 1 is provided with mounting holes 11 along the axial direction, the mounting holes 11 can be blind rivet holes, the blind rivets can be connected with the main shaft, the connecting section 2 is provided with mounting grooves 21, the circumferential array at the top of the fixing section 4 is provided with fixing holes 41, the number of the fixing holes 41 is preferably 4, the diameter of the top surface of the fixing section 4 is 100mm, the diameter of the circle where the fixing holes 41 are located is 66.7mm, the design of a disc type, the contact area between the, the connection firmness is improved;

the whole 20CrMnTi material that adopts of handle of a knife, hardness is high, and the wearability is good, can improve practical life, and the cutter body is inside to be hollow structure, reduces the holistic weight of handle of a knife.

Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.

Claims

1. A bridge type boring cutter handle is characterized in that: including cone section (1), linkage segment (2), straight section (3) and canned paragraph (4), cone section (1) is provided with mounting hole (11) along the axis direction, be provided with mounting groove (21) on linkage segment (2), canned paragraph (4) top circumference array is provided with fixed orifices (41).

2. The bridge boring tool shank of claim 1, wherein: the whole cutter handle is made of 20 CrMnTi.

3. The bridge boring tool shank of claim 1, wherein: the interior of the cutter body is of a hollow structure.

4. The bridge boring tool shank of claim 1, wherein: the conicity of the cone segment (1) is 7: 24.

5. The bridge boring tool shank of claim 1, wherein: the length of the tool shank is 451.8mm, and the length of the taper section (1) is 101.8 mm.

6. The bridge boring tool shank of claim 1, wherein: the diameter of the radial section of the straight section (3) is 72mm, the diameter of the top surface of the fixed section (4) is 100mm, and the diameter of the circle where the fixed hole (41) is located is 66.7 mm.