CN102825313B

CN102825313B - Efficient cutting device of ball-end milling cutter

Info

Publication number: CN102825313B
Application number: CN201210325723.XA
Authority: CN
Inventors: 邵昌林
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-09-05
Filing date: 2012-09-05
Publication date: 2017-02-15
Anticipated expiration: 2032-09-05
Also published as: CN102825313A

Abstract

A mechanical transmission device is capable of enhancing the cutting property of a ball-end milling cutter, and comprises a driving shaft, an intermediate shaft, a plurality of gears (cylindrical gear, internal gear, bevel gear, spiral gear), a driven shaft and a milling cutter; the driving shaft and the driven shaft form an included angle; when a main shaft is driven to rotate by a power source, the main shaft drives the driven shaft to rotate around the main shaft by the gears and rotates around the axis. The centre of the ball-end is corrected by a scale or by other methods, so as to be arranged on the centre line of the main shaft. The method is simple and convenient. Therefore, the centre part of the ball-end milling cutter does not participate in cutting due to the fact that the centre part is likely to tip and wear. The part of the end face of the ball-end milling cutter which does not participate in cutting is increased along with the increment of included angle between the driving shaft and the driven shaft. The centre of the ball-end milling cutter is avoided from tipping, thereby enhancing the wearing resistance of the cutter, fastening the cutter feeding speed, and improving the cutting efficiency.

Description

Rose cutter high-efficient cutting device

Technical field

The present invention relates to the device in a kind of machine driving and metal cutting technology field, specifically a kind of spherical surface milling dress Put.

Background technology

Find through retrieving to prior art, up-to-date publication《Miller》(publish before including《Miller》) all useful boring Knife or the method for milling cutter processing concave spherical surface.Because to knife difficulty, machining accuracy is low；Most importantly cutter rotation, workpiece also will Rotated.It is only used for processing concave spherical surface, range of application is very narrow.

With profiling machine, particularly CNC milling machine is more and more universal, and rose cutter can be to the processing of free form surface Using more and more extensive.The drawbacks of rose cutter is it will be apparent that its cutting force analyzed in some articles, claims core to be plough Scrape, rather than cutting.

Before more than 30 years, Japanese greatly studies to rose cutter, and ball head knife is sharpened into S-shaped,《Tool technique》Right This has been reported that.But this improvement to improving stock-removing efficiency is limited.The crux of problem is：Rotating speed is slower closer to center, that is, Make rotating speed high again, but center a little in theory rotating speed be equal to 0.A little being difficult to of ball-end mill center is ground accurately, that is, Make to grind very accurate, in milling, this point both can be described as front cutting edge metal is carried out with plough scraping it may also be said to be rear knife edge pair Metal is extruded, and along with rose cutter is bigger closer to central axial force in cutting, the machined surface of therefore workpiece has one Bar bright line.Center due to the reason cutter such as above-mentioned is easy to tipping, connects paracentral part and is easy to wear and tear.

Content of the invention

The present invention is a kind of efficient cutting spherical surface device.Main shaft is rotated, install the driven shaft of cutter except and actively Axle has angle and is revolved round the sun, simultaneously rotation.Make the blade close to core not participate in cutting, allow periphery sword to complete to cut Cut.

The otch of the arbitrary tangent to spheroid for the plane is all round, if tangent plane passes through center, that is, the diameter of otch is equal to ball Diameter, then otch, around central rotation, just can obtain a complete circle.If arteriotomy diameter is equal to R/COS45, and (R is ball Radius) make 45 degree of rotations (when namely cutting, ball center is on the centrage of main shaft) around ball center, you can obtain half Ball is also half sphere obtaining required for rose cutter.If without rose cutter, ball also can be processed with cylindrical milling cutter Face.But check and correction is difficult, workpiece fineness is poor, is only suitable for roughing.So still using rose cutter, the manufacturing technology of this cutter is Very ripe.And the center being most difficult to sharpen recedes into the background, because core no longer participates in cutting, close to the portion of cutting edge Divide and only play smoothing effect.Crudy is good, and ball head knife sharpening facilitated than originally, and because core does not participate in cutting, cutting edge is not Need by center, therefore can increase the number of teeth, effect can be greatly improved.

Brief description

Fig. 1 is the structural representation of embodiment 1；

Fig. 2 is the structural representation of embodiment 2；

Fig. 3 is the structural representation of embodiment 3；

Fig. 4 is the structural representation of embodiment 4；

Fig. 5 is schematic diagram 2A-A sectional view.

Specific embodiment

Below embodiments of the invention are elaborated, the present embodiment is to carry out reality under premised on the present invention program Apply, give detailed implementation and specific operating process, but protection scope of the present invention is not limited to following embodiments.

Embodiment 1

As shown in figure 1, main shaft 1 rotarily drives gear 2, gear 2 drives duplicate gear 3,4, and gear 4 is driven by gear 5 Jackshaft 6, jackshaft 6 drives driven shaft 10 by bevel-gear sett 8,9, and driven shaft 10 makes cutter 11 rotate.Connector 7 is (specially Do not need connector with device) make driven shaft enclose while rotation to rotate around the spindle.

Embodiment 2

As shown in Fig. 2 main shaft 1 drives connector 2, connector 2 makes lateral shaft 6 rotate, and carries dynamic bevel gear 5 around main shaft Central rotation, is engaged bevel gear gear ring 4 and is mounted in (or on fuselage) on sleeve 3, be non-rotary with it, so bevel gear 5 Carry out rotation, lateral shaft 6 is rotated through a pair 45 helical gears 7,8 and drives driven shaft 9, and driven shaft 9 makes cutter 10 rotate simultaneously. Bevel gear 11 plays balanced action.The feature of this structure is driven shaft adjustable angle.

Embodiment 3

As shown in figure 3, jackshaft 2 is fixed on end mill head upper end by pin 3, it is non-rotary；Bevel gear 5 is arranged on centre On axle, it is also non-rotary.Rotate together when main shaft 1 rotarily drives connector 4, and make the cone tooth engaging with bevel gear gear ring 5 Wheel 6 is around central rotation rotation simultaneously.Bevel gear 6 drives transverse axis rotation, transverse axis pass through a pair of helical gear make driven shaft and in The heart rotates in an angle, and rotation；Angle is adjustable in.Driven shaft makes cutter rotate.

Embodiment 4

As shown in figure 4, main shaft 1 drives disjunctor 3 to rotate, and make jackshaft (bearing omission) 6 around central rotation.Internal gear Gear ring 4 is mounted on sleeve 2, is non-rotary, so the roller gear 5 being engaged with produces rotation.Jackshaft 6 passes through one Bevel gear 7,8 is made driven shaft rotate, and at a certain angle with the alignment of shafts revolved round the sun.Driven shaft makes cutter rotate.

The advantage of this device is that structure is simple, compact, can make complex compound motion, be not required to as special purpose device Want connector, structure is more simple.

Claims

1. a kind of cutting spherical surface actuating device, including main shaft, gear train one, jackshaft, gear train two, driven shaft and bulb milling Knife, main shaft makes jackshaft rotate by gear train one, and jackshaft makes driven shaft rotate by gear train two, and rose cutter is arranged on On driven shaft；It is characterized in that：Driven shaft and main shaft have angle, and the ball center of rose cutter is on the centrage of main shaft.

2. cutting spherical surface actuating device according to claim 1 it is characterised in that：Jackshaft is sleeved on the alignment of shafts, main Axle upper end is provided with gear train one, and main shaft passes through gear train one jack shaft, and jackshaft lower end is provided with gear train two, this gear Group two is bevel-gear sett, and jackshaft makes driven shaft rotate by this to bevel gear.

3. a kind of cutting spherical surface actuating device, including main shaft, connector, lateral shaft, bevel gear, bevel gear gear ring, a pair of spiral Gear, driven shaft and rose cutter, rose cutter be arranged on driven shaft it is characterised in that：Main shaft is driven horizontal by connector Rotate together to axle, and lateral shaft rotation simultaneously is made by bevel gear and the engagement of bevel gear gear ring, lateral shaft passes through a pair of spiral Gear driven driven shaft rotates, and then so that the rose cutter on driven shaft is rotated；Driven shaft and main shaft have angle, this angle angle Degree can adjust.

4. a kind of cutting spherical surface actuating device, including main shaft, jackshaft, pin, bevel gear, connector, bevel gear gear ring, laterally Axle, a pair of helical gear, driven shaft and rose cutter, rose cutter be arranged on driven shaft it is characterised in that：Jackshaft is set with In the alignment of shafts, jackshaft upper end is fixed by pin, does not rotate；Main shaft rotarily drives connector rotation, and connector passes through cone Gear-wheel gear-ring and bevel gear engagement make lateral shaft rotate, and lateral shaft makes driven shaft rotate by a pair of helical gear, and then makes Obtain the rose cutter rotation on driven shaft.

5. a kind of cutting spherical surface actuating device, including main shaft, connector, jackshaft, internal gear gear ring, roller gear, a pair of cone Gear, driven shaft, rose cutter, rose cutter be arranged on driven shaft it is characterised in that：Main shaft makes jackshaft by connector Around alignment of shafts rotation, internal gear gear ring is connected with sleeve or fuselage, fixes and does not rotate, jackshaft by roller gear with interior Gear-wheel gear-ring engagement carries out rotation, and jackshaft makes driven shaft rotate by bevel-gear sett, and then makes the bulb on driven shaft Milling cutter rotates.