CN201760611U - Integrated deburring cutter by cylindrical lathe cutting - Google Patents

Abstract

The utility model relates to an integrated deburring cutter by cutting and belongs to the field of mechanical processing. The integrated deburring cutter is characterized in that: below a cutter head, a deburring tool bit (8) is matched and installed through a dovetail groove (10); the deburring tool bit (8) is also provided with a deburring blade (9); a bolt base (5) is arranged below a hilt and connected with the tail of the deburring tool bit through a spring (6); and the front end of a precision screw rod (4) screwed in the bolt base (5) pushes against the tail of the deburring tool bit. Before turning an excircle, the elongation amount of the deburring blade (9) relative to a cutting blade (1) is first adjusted so that the tip of the cutting blade (1) and the tip of the deburring blade (9) are both on an arc with the axis of a workpiece as the center of a circle and the turning radius as the radius. Simultaneously, the main cutting edge of the cutting blade and the main cutting edge of the deburring blade coincide with a bus of which the surface is to be processed; and after the cutting blade (1) cuts away the workpiece, the bur with the surface to be processed is right scraped out by the deburring blade (9).

Description

Cylindrical turning-burring integrated tool

Invention field

The utility model relates to a kind of cylindrical turning that is used for, and the metal cutting tool that has the deburring function simultaneously belongs to field of machining.

Background technology

Along with machinery manufacturing industry strides forward to high accuracy, high efficiency and automatic direction, also more and more higher to the requirement of machining precision.Just make and think that when requirement on machining accuracy is not too high the negligible traditional understanding of shadow of burr has been subjected to challenge.Machining period statistic analysis result to most of workpieces to be machined shows, removes the 5%-10% that the burr operation accounts for the whole machining periods of workpiece used man-hour.Since 1973, the U.S. is used to remove about 6,000,000,000 dollars of the usefulness of burr every year.

Cutting burr can directly influence the quality of finished surface usually.When some difficult-to-machine materials of high-speed cutting (as nickel base superalloy), find, form jagged smear metal burr and cutting burr easily.These zigzag side cutting burrs and smear metal burr impact swiping on the cutter front and rear knife face, produce continuous stress impact and temperature fluctuation and impact.Tool surface micro-crack occurs through a large amount of impact cycle, and the microlith fragmentation takes place then, rolls up groove wear in a big way at last, causes tool failure.

This seminar has designed a kind of deburring testing stand, adopts two cutters to align in the test and cuts, and one is used for cutting to cutter, one cutter with the burr that removes surface to be processed.The burr of work surface after the burr of the work surface during with common cutting and the employing deburring testing stand, measure at three-dimensional microscopically respectively, found that and adopt after the deburring testing stand that the burr size has reduced about 50%, cutter life also improves greatly simultaneously.This has proved that also cutting burr is the major reason that causes the cutter slot wearing and tearing.Therefore, at the high speed cylindrical turning processing of difficult-to-machine material, online removal burr not only can improve machined surface quality in process, and can reduce the influence of burr to the cutter groove wear.The development and Design deburrer is significant.

The utility model proposes a kind of novel cutting, deburring integrated tool at the cylindrical turning processing of difficult-to-machine material.

Summary of the invention

The purpose of this utility model is to provide a kind of external cutting deburring integrated tool, when being implemented on the lathe size, the function of on-line automatic removal work surface burr is to improve crudy, reduce tool wear, improve cutter life and economic benefit.

A kind of cylindrical turning-burring integrated tool, comprise handle of a knife, be positioned at the cutter tip of handle of a knife front end, be installed on the cutting tip on the cutter tip, it is characterized in that: below cutter tip, also cooperate a deburring cutter head is installed, deburring blade also is installed on the deburring cutter head by dovetail groove; There is a bolt block above-mentioned handle of a knife below, and this bolt block and burring knife portion end to end are connected by spring, are threaded onto the interior accurate screw front end of bolt block and withstand on burring knife portion end to end.

Above-mentioned cylindrical turning-burring integrated tool is characterized in that: the natural length of above-mentioned spring can equal, and when the cutting tip point of a knife alignd with the deburring blade point of a knife, burr cutter head afterbody was to the distance of bolt block front portion.When by screwing precision bolt when regulating the deburring cutter head and moving forward, the spring generation pulling force that is stretched helps the fixed-site of deburring cutter head.

Above-mentioned cylindrical turning-burring integrated tool is characterized in that: above-mentioned cutter tip and deburring cutter head can have the scale that is used to indicate two cutter head position offsets, are convenient to regulate both relative distances.

The above-mentioned method of utilizing cylindrical turning-burring integrated tool size and deburring, it is characterized in that: the deburring cutter head can be along the dovetail groove guide rail with respect to sliding before and after the cutter tip, utilizes accurate screw rod to regulate the deburring cutter head relatively and the position of cutter tip in the effect of spring; Before the size, regulate the elongation AE of the relative cutting tip of burr blade earlier, so that the point of a knife of the point of a knife of cutting tip and deburring blade is being that turning radius in the center of circle is on the circular arc of radius with the workpiece axle center all; The main cutting edge of cutting tip and the main cutting edge of deburring blade overlap with the work surface bus simultaneously; Wherein

Wherein L represents cutting tip and the deburring blade vertical range at basal plane, and R1 represents workpiece radius. because the main cutting edge of cutting tip and deburring blade is just in the same plane, and all tangent with the work surface of workpiece.After cutting tip cut workpiece, the burr of work surface was just struck off by deburring blade.

Advantage of the present utility model is, the main cutting edge of deburring blade and cutting tip at grade, when workpiece be cut blade cut one the circle after, the burr of work surface is just struck off by deburring blade, has improved surface quality and cutter life greatly.Dovetail groove guide rail, spring, accurate screw rod and calibration system can be regulated the relative position of deburring cutter head easily and accurately simultaneously, to adapt to the processing conditions of different exradius.

Description of drawings

Fig. 1, Fig. 2 are the graphics of cutting, deburring integrated tool.

Fig. 3 is the X-Y scheme of deburring-cutting integrated tool original state.

X-Y scheme when Fig. 4 is deburring-cutting integrated tool cutting.

Fig. 5 be type deburring cutter head and blade X-Y scheme.

The schematic diagram of Fig. 6 deburring-adjustment when the incorporate cutter of cutting changes according to workpiece size.

Number in the figure title: 1, cutting tip, 2, cutter tip, 3, handle of a knife, 4, accurate screw rod, 5, bolt block, 6, spring, 7, scale, 8, the deburring cutter head, 9, deburring blade, 10, the dovetail groove guide rail, 11, cutter I, 12, cutter II, 13, workpiece I, 14, workpiece II.

The specific embodiment

As shown in Figures 2 and 3, the utility model is by cutting tip 1, cutter tip 2, handle of a knife 3, deburring cutter head 8, deburring blade 9, dovetail groove guide rail 10, accurate screw rod 4, bolt block 5, spring 6, graduation mark 7 compositions such as grade.

As shown in Figure 6, blade 1 is a cutting tip 1, and blade 2 is a deburring blade 9, and the vertical range of both place basal planes is L.When the radius of workpiece was R1, the elongation of deburring blade 9 was:

$\mathrm{AE}=R1-\sqrt{{\mathrm{<figure-callout\; id="1"\; label="R"\; filenames="HSA00000230544800031.png,HSA00000230544800041.png"\; state="\{\{state\}\}">R</figure-callout>}1}^2-{\mathrm{<figure-callout\; id="2"\; label="L"\; filenames="HSA00000230544800022.png,HSA00000230544800031.png"\; state="\{\{state\}\}">L</figure-callout>}}^2}$

At this moment, the point of a knife of the point of a knife of cutting tip 1 and deburring blade 9 is being the center of circle with the workpiece axle center just, and the turning radius is on the circular arc of radius.The main cutting edge of cutting tip 1 and deburring blade 9 is just in the same plane, and all tangent with the work surface of workpiece.After cutting tip 1 cut workpiece, the burr of work surface was just struck off by deburring blade 9.

As shown in Figure 3, when the radius of workpiece became R2 by R1, deburring blade needed to adjust, and adjustment amount is:

$\mathrm{\&Delta;}=\mathrm{BF}-\mathrm{AE}=(R2-\sqrt{{R2}^2-L^2})-(R1-\sqrt{{R1}^2-L^2})$

When the value of Δ was positive number, expression deburring blade 9 is equivalent to cutting tip 1 needs to be adjusted forward, rotates accurate screw rod 4, and it is travelled forward; When the value of Δ was negative, expression deburring blade 9 is equivalent to cutting tip 1 needs to be adjusted backward, rotates accurate screw rod 4, and it is moved backward.Δ is adjusted value, reflects by graduation mark 7.

Use that this is novel, during the deburring integrated tool, the operative employee only needs aside to monitor and gets final product, and does not need additionally to use cutter to carry out deburring again.And this integrated tool tool changing is easy, also is easy to the deburring blade position is adjusted when workpiece size changes, and the position of graduation apparatus demonstration deburrer, the degree of accuracy height of adjustment are arranged.This new-type cutter not only can reduce tool wear greatly after effectively removing the burr of work surface, improve cutter life, can also improve the quality of surface of the work, raises labour productivity.

Claims (3)

1. a cylindrical turning-burring integrated tool comprises handle of a knife (3), is positioned at the cutter tip (2) of handle of a knife front end, is installed on the cutting tip (1) on the cutter tip, it is characterized in that:

Below cutter tip, also cooperate a deburring cutter head (8) is installed, deburring blade (9) also is installed on the deburring cutter head (8) by dovetail groove (10);

There is a bolt block (5) above-mentioned handle of a knife below, and this bolt block (5) and burring knife portion end to end are connected by spring (6), are threaded onto interior accurate screw rod (4) front end of bolt block (5) and withstand on burring knife portion end to end.

2. cylindrical turning-burring integrated tool according to claim 1 is characterized in that: the natural length of above-mentioned spring (6) equals, and when the cutting tip point of a knife alignd with the deburring blade point of a knife, burr cutter head afterbody was to the distance of bolt block front portion.

3. cylindrical turning-burring integrated tool according to claim 1 is characterized in that: above-mentioned cutter tip (2) has the scale that is used to indicate two cutter head position offsets with deburring cutter head (8).

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