CN213195679U

CN213195679U - Reverse boring cutter

Info

Publication number: CN213195679U
Application number: CN202021383924.1U
Authority: CN
Inventors: 钟鹏
Original assignee: Ningbo Xusheng Auto Technology Co Ltd
Current assignee: Ningbo Xusheng Group Co ltd
Priority date: 2020-07-14
Filing date: 2020-07-14
Publication date: 2021-05-14
Anticipated expiration: 2030-07-14

Abstract

The utility model belongs to the cutter field provides an anti-boring cutter, include: the tool post, the interval is provided with first eccentric portion and second eccentric portion on the tool post, first eccentric portion and second eccentric portion diameter all are less than the tool post diameter, first eccentric portion and second eccentric portion up end all flush with the tool post up end, first recess has been seted up to first eccentric portion lower extreme, the second recess has been seted up to second eccentric portion lower extreme, first eccentric portion upper end detachable connections has first cutting edge, second eccentric portion upper end detachable connections has the second cutting edge, be provided with first inclined plane on the first cutting edge, first inclined plane is by being close to handle of a knife to keeping away from handle of a knife department downwardly extending, be provided with the second inclined plane on the second cutting edge, the second inclined plane is by keeping away from handle of a knife department to being close to handle of a knife department downwardly extending. Compared with the prior art, the utility model has the advantages of this anti-boring cutter can make the second cutting edge through less work piece through-hole, realizes not needing the tool changing and carries out the purpose of processing to two faces of little through-hole work piece.

Description

Reverse boring cutter

Technical Field

The utility model belongs to the cutter field, concretely relates to reverse boring cutter.

Background

The box-like parts are typically integrally cast and have a relatively large number of holes. The parts are usually bored in a hole system by a boring cutter on a horizontal machining center or a combined machine tool, and a reverse boring cutter (a reverse scraper) is a common cutter on the inner side surface of a through hole of a machining machine product part. At present, the existing reverse boring cutter mainly comprises a cutter post, a common reverse boring blade and a compression screw, the section structure of a cutter rod is usually circular, the reverse boring blade part is divided into a whole high-speed steel cutter, the cutter is fixed on the cutter post through the compression screw, in the prior art, when the diameter of a hole workpiece through hole is small, the reverse boring cutter of one type can only machine one surface of the workpiece, after a first machining surface is finished, the cutter needs to be replaced, the workpiece is turned over, then the machining operation of a second surface of the workpiece is carried out, and the machining mode has various procedures and influences the machining efficiency.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the current situation of prior art, and provide an anti-boring cutter.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: a reverse boring tool is proposed, comprising: the tool handle is used for being connected with a lathe;

the knife post is arranged on the knife handle, a first eccentric part and a second eccentric part are arranged on the knife post at intervals, the diameters of the first eccentric part and the second eccentric part are smaller than the diameter of the knife post, the upper end faces of the first eccentric part and the second eccentric part are flush with the upper end face of the knife post, a first groove is formed in the lower end of the first eccentric part, a second groove is formed in the lower end of the second eccentric part, a first cutting edge is detachably connected to the upper end of the first eccentric part, a second cutting edge is detachably connected to the upper end of the second eccentric part, a first inclined plane is arranged on the first cutting edge, the first inclined plane extends downwards from the position close to the knife handle to the position far away from the knife handle, a second inclined plane is arranged on the second cutting edge, and the second inclined plane extends downwards from the position far away from the knife handle to the position close to the knife.

In the above reverse boring cutter, the first cutting edge includes a first boring cutter and a first connecting block, the first connecting block is detachably connected to the first eccentric portion by a bolt, the first boring cutter is disposed at an upper end of the first connecting block, and the first inclined surface is disposed on the first connecting block.

In the above reverse boring cutter, the second cutting edge includes a second boring cutter and a second connecting block, the second connecting block is detachably connected to the second eccentric portion by a bolt, the second boring cutter is disposed at an upper end of the second connecting block, and the second inclined surface is disposed on the second connecting block.

In the reverse boring cutter, the cutter handle is provided with the connecting ring, the connecting ring is provided with the cutter changing clamping groove, and the end part of the cutter handle is provided with the bolt connecting hole.

Compared with the prior art, the utility model has the advantages of this anti-boring cutter can make the second cutting edge through less work piece through-hole, realizes not needing the tool changing and carries out the purpose of processing to two faces of little through-hole work piece.

Drawings

FIG. 1 is a structural view of the present reverse boring tool;

FIG. 2 is a cross-sectional view of a work piece being machined;

FIG. 3 is a view of the second blade entering the through hole;

FIG. 4 is a view of the second blade fully extending through the through hole;

FIG. 5 is a view of the first blade as it enters the through hole;

fig. 6 is a structural view of the first blade fully penetrating the through hole.

In the figure, a tool holder 1, a tool post 2, a first eccentric part 3, a second eccentric part 4, a first groove 5, a second groove 6, a first inclined surface 7, a second inclined surface 8, a first boring tool 9, a first connecting block 10, a second boring tool 11, a second connecting block 12, a connecting ring 13, a tool changing clamping groove 14, a bolt connecting hole 15, a first processing surface 16, a through hole 17 and a second processing surface 18 are arranged.

Detailed Description

The following are specific embodiments of the present invention and the accompanying drawings are used to further describe the technical solution of the present invention, but the present invention is not limited to these embodiments.

As shown in fig. 1 and 2, the reverse boring tool includes: the tool handle 1 is used for being connected with a lathe; knife post 2, it is located on handle of a knife 1, the interval is provided with first eccentric part 3 and second eccentric part 4 on the knife post 2, first eccentric part 3 and the 4 diameters of second eccentric part all are less than knife post 2 diameters, first eccentric part 3 and the 4 up ends of second eccentric part all flush with 2 up ends of knife post, first recess 5 has been seted up to 3 lower extremes of first eccentric part, second recess 6 has been seted up to 4 lower extremes of second eccentric part, 3 upper end releasable connection of first eccentric part have first cutting edge, 4 upper end releasable connection of second eccentric part have the second cutting edge, be provided with first inclined plane 7 on the first cutting edge, first inclined plane 7 is by being close to handle of a knife 1 to keeping away from handle of a knife 1 department downwardly extending, be provided with second inclined plane 8 on the second cutting edge, second inclined plane 8 is by keeping away from handle of a knife 1 department to being close to handle of a knife 1 department downwardly extending.

The tool holder 1 is connected with a lathe, and the lathe can drive the tool holder 1 to rotate and move during machining, so that the tool holder 1 can be driven to rotate and move, and the purpose of boring and milling a workpiece is achieved.

During processing, the lathe drives the handle of a knife 1 to move forward, so that the second cutting edge is abutted to the first processing surface 16, then the lathe drives the handle of a knife 1 to rotate, and then the second cutting edge can process the first processing surface 16.

As shown in fig. 2 and 3, after the first machining surface 16 is finished, the lathe drives the tool shank 1 to vertically move downwards, so that the second groove 6 abuts against the inner wall of the through hole 17, then the lathe drives the tool shank 1 to move forwards, so that the second cutting edge can enter the through hole 17, and the lathe continues to move forwards until the second cutting edge passes through the through hole 17.

As shown in fig. 2 and 4, when the second cutting edge passes through the through hole 17, the lathe drives the tool shank 1 to move vertically upward, so that the tool post 2 between the first eccentric portion 3 and the second eccentric portion 4 can pass through the through hole 17.

As shown in fig. 2, 5 and 6, after the tool post 2 between the first eccentric portion 3 and the second eccentric portion 4 completely passes through the through hole 17, the lathe drives the tool shank 1 to move vertically downward, so that the first groove 5 abuts against the inner wall of the through hole 17, the lathe drives the tool shank 1 to move forward until the first tool edge completely passes through the through hole, and then the lathe drives the tool shank 1 to move vertically upward, so that the first tool edge abuts against the second machining surface 18, and further the second machining surface 18 can be machined.

When the machining mode is used for machining the machining surfaces on two sides of the through hole 17 of the same workpiece, the cutter does not need to be additionally replaced, and the machining efficiency is greatly improved.

As shown in fig. 1, the first cutting edge includes a first boring cutter 9 and a first connecting block 10, the first connecting block 10 is detachably connected to the first eccentric portion 3 by a bolt, the first boring cutter 9 is disposed at an upper end of the first connecting block 10, and the first inclined surface 7 is disposed on the first connecting block 10.

The first connecting block 10 is connected with the first eccentric part 3 through a bolt, so that first cutting edges with different specifications can be replaced when workpieces with different precisions are machined.

The second cutting edge comprises a second boring cutter 11 and a second connecting block 12, the second connecting block 12 is detachably connected with the second eccentric part 4 through a bolt, the second boring cutter 11 is arranged at the upper end of the second connecting block 12, and the second inclined surface 8 is arranged on the second connecting block 12.

The second connecting block 12 is connected with the second eccentric part 4 through a bolt, and second cutting edges with different specifications can be replaced when workpieces with different precisions are machined.

A connecting ring 13 is arranged on the cutter handle 1, a cutter changing clamping groove 14 is arranged on the connecting ring 13, and a bolt connecting hole 15 is arranged at the end part of the cutter handle 1.

Tool changing clamping groove 14 is used for being connected with the lathe in a clamping mode and preventing tool shank 1 from being separated from the lathe during rotation.

The specific embodiments described herein are merely illustrative of the spirit of the invention. Various modifications, additions and substitutions for the specific embodiments described herein will be apparent to those skilled in the art without departing from the scope and spirit of the invention as defined in the accompanying claims.

Claims

1. A reverse boring cutter, comprising: the tool handle is used for being connected with a lathe;

2. The reverse boring cutter as claimed in claim 1, wherein the first cutting edge comprises a first boring cutter and a first connecting block, the first connecting block is detachably connected to the first eccentric portion by a bolt, the first boring cutter is disposed at an upper end of the first connecting block, and the first inclined surface is disposed on the first connecting block.

3. The reverse boring cutter as claimed in claim 2, wherein the second blade includes a second boring cutter and a second connecting block, the second connecting block is detachably connected to the second eccentric portion by a bolt, the second boring cutter is provided at an upper end of the second connecting block, and the second inclined surface is provided on the second connecting block.

4. The reverse boring cutter as claimed in claim 3, wherein the shank is provided with a connecting ring, the connecting ring is provided with a cutter changing slot, and the end of the shank is provided with a bolt connecting hole.