CN203140801U

CN203140801U - Multi-point, multi-edge concave grooving cutter

Info

Publication number: CN203140801U
Application number: CN 201220658177
Authority: CN
Inventors: 曹靖云; 陈振超; 周玉贵; 李银涛
Original assignee: HENAN CSR HEAVY EQUIPMENT CO Ltd
Current assignee: Henan Zhongche heavy equipment Co. Ltd.
Priority date: 2012-12-04
Filing date: 2012-12-04
Publication date: 2013-08-21
Anticipated expiration: 2022-12-04

Abstract

The utility model relates to the turning technical field and discloses a multi-point, multi-edge concave grooving cutter which comprises a grooving cutter body, wherein the middle part of a main cutting edge 1 of the grooving cutter is in the shape of a micro concave type arc; and two finishing tool noses and a left and a right cutting edge 3 are arranged on two sides of the main cutting edge 1. The grooving cutter is suitable for batch processing of workpieces, suitable for processing and cutting workpieces on which grooves with different widths are required to cut. The grooving cutter can be set in parallelism with respective workpiece in one-step clamping, and a rotary cutter frame is not required. The grooving cutter can be used for radial or axial cutting processing, avoids sticking and vibration, and also avoids phenomena of sticking and galling and vibration-caused corrugation due to too small machining allowance of a common cutter; the radial roughness of the groove bottom of the processed workpiece is small so as to ensure cylindricity and roundness of the workpiece; and the back force during cutting is small to avoid possible corrugation caused by vibration. Therefore, the grooving cutter is more suitable for a numerical control machine tool for cutting and processing of grooved workpieces.

Description

Matrix Multi-tip and edge grooving cutter

Technical field

The utility model relates to the Technology for Turning Machining field, relates in particular to a kind of matrix Multi-tip and edge grooving cutter.Be fit to turning in batches and process the workpiece that a plurality of groove widths do not wait, do not need the swivelling tool-holder control time reduced in size, easily controlling dimension tolerance and fineness.

Background technology

Along with company's hydraulic support production scale constantly enlarges, the piston of hydraulic support jack, column, piston rod processing capacity are also increasing.Piston, piston rod are the chief components of jack, also are the vital parts that directly influences the jack life-span, and when machining piston, piston rod, footpath roughness, cylindricity are most important at the bottom of the seal groove.If footpath roughness value height at the bottom of the seal groove, very the quick-wearing seal makes seal failure, and phenomenons such as leakage, decompression, support performance reduction take place.

When processing the workpiece of trough of belt, often adopt common grooving cutter processing cutting in the past.The workpiece of common grooving cutter processing roughness value in the 6.3-3.2um scope meets the demands substantially, and piston, piston rod trough of belt position in the jack, it generally is seal groove, roughness requires in the 3.2-1.6um scope, tolerance is at the Js8 class precision, like this to add man-hour size Control and cutter use just require quite strict.Therefore be difficult to guarantee cylindricity, the roughness in bottom land footpath with common grooving cutter processing jack trough of belt sealing workpiece, dimensional tolerance also is difficult to control.Reason:

When 1, workpiece needs the many and groove width of grooving Working position inequality, many during the grooving cutter at clamping, increase knife rest rotation location proof time, as when utilizing wide moulding cutter to process each grooving position, increase non-cutting times such as measuring, proofread cutter, simultaneously after the each rotation of knife rest is fixing, be not that position when adorning cutter first overlaps.Therefore the size Control that is increased in the machining is measured equal time;

2, etc. groove width moulding cutter is too wide because of cutter, and when radial cutting, back force increases and causes that ripple appears in vibration.Therefore increase workpiece bottom land footpath roughness and cylindricity, circularity;

3, use grooving Tool in Cutting less than groove width, at each radial feed after cutter withdraws from during to size, surface of the work can the residual tool marks mark that connects; Connect the tool marks mark if want to remove, meeting is too wide because main cutting edge contacts with the workpiece external diameter, and back force increases, and allowance is too little, the sticking cutter phenomenon of plucking occurs.

Collapse open-minded phenomenon if 4 with wide moulding cutter cutter the main cutting edge wearing and tearing take place in use, surface, workpiece bottom land footpath can remaining convex vestige.

Summary of the invention

In order to overcome the deficiency in the background technology, the utility model provides a kind of matrix Multi-tip and edge grooving cutter,

In order to realize the foregoing invention purpose, the utility model adopts technical scheme as follows:

A kind of matrix Multi-tip and edge grooving cutter comprises: the grooving cutter is that the nick type is circular-arc in the middle of the described grooving cutter main cutting edge; Two smoothing points of a knife are arranged on the main cutting edge both sides, two cutting edges about reaching.

Owing to adopt aforesaid technical scheme, the utlity model has following superiority:

A kind of matrix Multi-tip and edge grooving cutter can be at workpiece in radially having only 0.05-0.01mm allowance, but also smoothing surface, not plucking, sticking cutter, do not produce built-up edge, can not vibrate, ripple does not appear.Improved matrix grooving cutter has following several advantages:

1, its most suitable batch machining workpiece; 2, one is fit to the workpiece that machining does not wait the several groove widths of workpiece cutting to cutter; 3, only clamping of need and workpiece carry out depth of parallelism tool setting, do not need swivelling tool-holder; 4, dimensional tolerance control easily.In back engagement of the cutting edge has only the 0.05-0.01 scope, also can be radially or axial machining, sticking cutter does not vibrate, and has avoided common cutting knife too little because of allowance, sticking cutter plucking and vibration occur and produces waviness phenomena; 5, processed workpiece bottom land footpath roughness is little, and can guarantee cylindricity, the circularity of workpiece; 6, little because of cutter and workpiece contact-making surface, back force reduces during cutting, is difficult for vibration and produces ripple; 7, be more suitable for Digit Control Machine Tool machining trough of belt workpiece.

Description of drawings

Fig. 1 is the structural representation of existing common grooving cutter;

Fig. 2 is structural representation of the present utility model;

The specific embodiment

As shown in Figure 2, a kind of matrix Multi-tip and edge grooving cutter comprises: the grooving cutter is that the nick type is circular-arc in the middle of the described grooving cutter main cutting edge 1; Two smoothing points of a knife 2 are arranged on main cutting edge 1 both sides, two cutting edges 3 about reaching.

The utility model can be at workpiece in radially having only 0.05-0.01mm allowance, but also smoothing surface, not plucking, sticking cutter, do not produce built-up edge, can not vibrate, ripple does not appear.

Claims

1. a matrix Multi-tip and edge grooving cutter is characterized in that: comprising: be that the nick type is circular-arc in the middle of the grooving cutter, described grooving cutter main cutting edge (1); Two smoothing points of a knife (2) are arranged on main cutting edge (1) both sides, two cutting edges (3) about reaching.