CN217452171U

CN217452171U - Special cutter bar for processing deep and long hole high-precision copper sleeve

Info

Publication number: CN217452171U
Application number: CN202220489714.3U
Authority: CN
Inventors: 吴东平; 许宗炎; 张佳奇; 施晓锋
Original assignee: Zhejiang Shuangjin Machinery Group Co Ltd
Current assignee: Zhejiang Shuangjin Machinery Group Co Ltd
Priority date: 2022-03-09
Filing date: 2022-03-09
Publication date: 2022-09-20
Anticipated expiration: 2032-03-09

Abstract

The utility model relates to a special cutter bar for processing deep long hole high-precision copper bush, which can avoid the tool bit from vibrating, comprising a tool bit, a cutter bar and a tool apron, wherein the length of the cutter bar is more than 1.5 m; the cutter bar, the fixed assembly part of the lathe and the counterweight part are integrally cast by nodular cast iron; the tool bit is in concave-convex matching with the end face of the tool bar and is fixed by the bolt, and the machining turning tool is located in the groove of the end face of the tool bit and is locked by the tool bar bolt. The advantages are that: under the condition that the deep long hole is processed to be larger than 1000mm, the tool bit can be prevented from vibrating, and the surface precision of a processed workpiece is improved.

Description

Special cutter bar for processing deep and long hole high-precision copper bush

Technical Field

The utility model relates to a can avoid the tool bit can quiver deep slot hole high accuracy copper sheathing processing to use special cutter arbor belongs to the lathe tool field of making.

Background

When the applicant processes the copper bush with the length of more than 1000mm, the depth of an inner hole to be processed is long, so that the length of the cutter bar is long, the cutter head is far away from the clamping position of the cutter bar, the cutter bar is not enough in strength and rigidity, the cutter head can shake during processing, the surface of a part machined is corrugated, and the requirement on product quality cannot be met.

Disclosure of Invention

The design purpose is as follows: the defects in the prior art are avoided, and the special cutter bar for machining the deep long hole high-precision copper sleeve is designed, so that the cutter head can be prevented from vibrating.

The design scheme is as follows: in order to achieve the above design objectives. The utility model discloses on background art's basis: 1. the cutter arbor and the base are integrally cast by ductile iron materials, and the purpose is to increase the strength of the cutter arbor by utilizing the good mechanical property of the ductile iron materials and improve the processing precision of a lathe. 2. The counterweight is increased at the clamping part of the cutter bar, because the cutter bar is longer, the counterweight area is increased by 50kg at the position opposite to the cutter bar, and the integral stability of the cutter rest is increased. 3. The angle of the cutter head is designed to be adjustable: the purpose of this is to: the tool bit is fixed with the cutter bar bolt, and the tool bit can adjust the tool bit machining angle through adjusting the position of the fixing hole. The purpose is because the copper sheathing material is softer, when the car is smart, in order to make the roughness on workpiece surface better, great rake angle should be selected to the lathe tool, can effectively improve the machining precision.

The tool rake angle refers to the angle between the rake face and the base plane measured in orthogonal planes. The main functions are as follows: firstly, the cutting deformation and the cutting force can be reduced by increasing the front angle, and the cutting consumption is reduced; secondly, the processing hardening can be reduced, the generation of built-up edge can be inhibited, and the quality of the processed surface can be improved.

The technical scheme is as follows: a special cutter bar for machining a deep and long hole high-precision copper sleeve comprises a cutter head, a cutter bar and a cutter holder, wherein the length of the cutter bar is more than 1.5 m; the cutter bar and lathe fixing assembly part and the counterweight part are integrally cast by nodular cast iron; the tool bit is in concave-convex matching with the end face of the tool bar and is fixed by the bolt, and the machining turning tool is located in the groove of the end face of the tool bit and is locked by the tool bar bolt.

Compared with the prior art, the utility model, under the condition that the deep slot hole of processing is greater than 1000mm, can avoid the tool bit can quiver, improved the surface precision of work piece.

Drawings

FIG. 1 is a schematic front view of a special cutter bar for machining a deep and long hole high-precision copper bush.

Fig. 2 is a schematic view of the tool tip of fig. 1.

Detailed Description

Example 1: reference is made to fig. 1-2. A special cutter bar for machining a deep and long hole high-precision copper sleeve comprises a cutter head, a cutter bar and a cutter holder, wherein the length of the cutter bar 2 is more than 1.5 m; the cutter bar 2, the lathe fixing assembly part 3 (with the length of 300 mm) and the counterweight part 4 (with the length of 250 mm) are integrally cast by adopting a ductile cast iron material; tool bit 1 and 2 terminal surface unsmooth matchings of cutter arbor and adopt bolt 5 fixed, and processing lathe tool 6 is located 1 terminal surface recess of tool bit and locks through cutter arbor bolt 7. The tool bit should generally have a large rake angle (20-25 degrees). Rake angle refers to the angle between the rake face and the base plane measured in the orthogonal plane of the tool.

It is to be understood that: although above-mentioned embodiment is right the utility model discloses a design has done more detailed word description, but these word descriptions, are only right the utility model relates to a simple word description of idea, rather than right the utility model relates to a restriction of idea, any do not surpass the utility model relates to a combination, increase or the modification of idea all fall into the utility model discloses a within the protection scope.

Claims

1. The utility model provides a deep hole high accuracy copper sheathing processing is with special cutter arbor, includes tool bit, cutter arbor and blade holder, characterized by: the length of the cutter bar (2) is more than 1.5 m; the cutter bar (2), the lathe fixing assembly part (3) and the counterweight part (4) are integrally cast by ductile cast iron; tool bit (1) and cutter arbor (2) terminal surface unsmooth matching and adopt bolt (5) to fix, and processing lathe tool (6) are located tool bit (1) terminal surface recess and lock through cutter arbor bolt (7).

2. The special tool bar for processing the deep and long hole high-precision copper bush as claimed in claim 1, wherein: and a front angle of 20-25 degrees is selected for machining the turning tool (6).

3. The special tool bar for processing the deep and long hole high-precision copper bush as claimed in claim 2, wherein: rake angle refers to the angle between the rake face and the base plane measured in the orthogonal plane of the tool.