CN203679358U

CN203679358U - Deep hole machining cutter system capable of preventing bending deformation of cutter bars

Info

Publication number: CN203679358U
Application number: CN201320839726.5U
Authority: CN
Inventors: 郑建明; 葛成龙; 尤亚军; 肖继明; 李言
Original assignee: Xian University of Technology
Current assignee: Xian University of Technology
Priority date: 2013-12-18
Filing date: 2013-12-18
Publication date: 2014-07-02
Anticipated expiration: 2023-12-18

Abstract

The utility model discloses a deep hole machining cutter system capable of preventing the bending deformation of cutter bars. The system comprises a drill, wherein the drill is sequentially connected with two or more cutter bars; a cutter bar supporting ring is arranged in the position where every two adjacent cutter bars are connected. The system has a simple structure, and can effectively solve the problems of unstability and bending deformation of cutter bars and serious deflection of machined holes during super-deep hole machining in the prior art.

Description

Prevent the diastrophic deep hole processing cutter system of knife bar

Technical field

The utility model belongs to Deep-Hole Drilling Technology field, is specifically related to one and prevents the diastrophic deep hole processing cutter system of knife bar.

Background technology

Deep hole machining has a wide range of applications in all trades and professions of national economy as a kind of important Machining Technology.Different from the processing method such as car, milling, deep hole processing drill bit machining condition is very severe, the generation of smear metal and discharge be all to complete in narrow and small hemi-closure space, especially the processing of ultralong deep hole, because knife bar is long, intensity is low, poor rigidity, very easily produce vibration and buckling phenomenon, cause drill bit easily to occur that deflection and hole crudy do not reach requirement.Therefore, deflection problem in hole is a difficult problem in deep hole machining field always.

Utility model content

The purpose of this utility model is to provide one and prevents the diastrophic deep hole processing cutter system of knife bar, has solved the ultralong deep hole existing in prior art and has added the problem that serious deflection appears in knife bar unstability in man-hour, flexural deformation and machining hole.

The technical scheme that the utility model adopts is: one prevents the diastrophic deep hole processing cutter system of knife bar, comprise tooling system body, tooling system body comprises drill bit, drill bit is connected with two or more knife bars in turn, and the junction between adjacent knife bar is provided with knife bar support ring.

Feature of the present utility model is also,

It between knife bar, is the connection of bull square thread.

Junction between each adjacent knife bar arranges at least 2 knife bar support rings.

The internal diameter of knife bar support ring is that interference fits is connected with the centering external diameter of knife bar.

Knife bar support ring be shaped as spline housing shape.

The tooth top of knife bar support ring is provided with rounding; Two ends on the length direction of knife bar support ring are provided with rounding.

Knife bar support ring is bakelite, polytetrafluoroethylene (PTFE) or Gr15 and quenches.

The beneficial effects of the utility model are:

(1) for deep hole machining cutter holder is providing supplemental support in hole in machining hole, prevent that knife bar is due to not enough unstability and the flexural deformation phenomenon causing of rigidity;

(2) rigidity of support, guiding and the cushioning effect of enhancing knife bar, reduce machining hole deflection, improves hole machining accuracy;

(3) for deep hole processing system provides hydraulic oil transfer passage;

The utility model is simple in structure, can effectively reduce the flexural deformation of deep hole machining process knife bar, has solved preferably the deflection problem of ultralong deep hole processing mesopore.

Brief description of the drawings

Fig. 1 is the working method schematic diagram of knife bar support ring in deep hole that the utility model prevents the diastrophic deep hole processing cutter system of knife bar;

Fig. 2 is the working method sectional side elevation of knife bar support ring in deep hole that the utility model prevents the diastrophic deep hole processing cutter system of knife bar;

Fig. 3 is the front view that the utility model prevents the knife bar support ring of the diastrophic deep hole processing cutter system of knife bar;

Fig. 4 is the side view that the utility model prevents the knife bar support ring of the diastrophic deep hole processing cutter system of knife bar.

In figure, 1. the first knife bar, 2. knife bar support ring, 3. the second knife bar, 4. workpiece, 5. drill bit.

Detailed description of the invention

Below in conjunction with the drawings and specific embodiments, the utility model is elaborated.

The utility model provides one to prevent the diastrophic deep hole processing cutter system of knife bar, as depicted in figs. 1 and 2, comprise tooling system body, tooling system body comprises drill bit 5, drill bit 5 is connected with two or more knife bars in turn, and the junction between adjacent knife bar is provided with knife bar support ring 2.

Fig. 1 provides knife bar and comprises the first knife bar 1 and the second knife bar 2, is provided with knife bar support ring 2 in the junction of the first knife bar 1 and the second knife bar 3.

Wherein, between knife bar, be the connection of bull square thread.Each junction arranges at least 2 knife bar support rings 2.The internal diameter of knife bar support ring 2 is that interference fits is connected with the centering external diameter of knife bar, and in the external diameter of knife bar support ring 2 and workpiece 4 is little matched in clearance between machining hole.

As shown in Figure 3 and Figure 4, knife bar support ring 2 be shaped as spline housing, when knife bar supplemental support is provided, for deep hole processing system provides hydraulic oil transfer passage; The tooth top of knife bar support ring 2 is provided with rounding; Two ends on the length direction of knife bar support ring 2 are provided with rounding, and knife bar support ring 2 length direction two ends preferably add go to work certain cone angle rounding, to reduce knife bar support ring 2 to processing the damage of hole wall.

Knife bar support ring 2 is bakelite, polytetrafluoroethylene (PTFE) or Gr15 quenching, and specifically depending on processing work material soft or hard, soft material workpiece adopts bakelite or polytetrafluoroethylene (PTFE), and hard-material work pieces adopts Gr15 and quenches.

The utility model has the advantage of:

(3) for deep hole processing system provides hydraulic oil transfer passage;

Claims

1. one kind prevents the diastrophic deep hole processing cutter system of knife bar, it is characterized in that, comprise tooling system body, tooling system body comprises drill bit (5), drill bit (5) is connected with two or more knife bars in turn, and the junction between adjacent knife bar is provided with knife bar support ring (2).

2. the diastrophic deep hole processing cutter system of knife bar that prevents according to claim 1, is characterized in that, is the connection of bull square thread between described knife bar.

3. the diastrophic deep hole processing cutter system of knife bar that prevents according to claim 1, is characterized in that, the junction between described each adjacent knife bar arranges at least 2 knife bar support rings (2).

4. the diastrophic deep hole processing cutter system of knife bar that prevents according to claim 1, is characterized in that, the internal diameter of described knife bar support ring (2) is that interference fits is connected with the centering external diameter of knife bar.

5. the diastrophic deep hole processing cutter system of knife bar that prevents according to claim 1, is characterized in that, described knife bar support ring (2) be shaped as spline housing shape.

6. the diastrophic deep hole processing cutter system of knife bar that prevents according to claim 1, is characterized in that, the tooth top of described knife bar support ring (2) is provided with rounding; Two ends on the length direction of knife bar support ring (2) are provided with rounding.

7. the diastrophic deep hole processing cutter system of knife bar that prevents according to claim 1, is characterized in that, described knife bar support ring (2) is bakelite, polytetrafluoroethylene (PTFE) or Gr15 and quenches.