CN106378481A - Milling head applied to numerical control machine tool, and numerical control machine tool - Google Patents
Milling head applied to numerical control machine tool, and numerical control machine tool Download PDFInfo
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- CN106378481A CN106378481A CN201611123087.7A CN201611123087A CN106378481A CN 106378481 A CN106378481 A CN 106378481A CN 201611123087 A CN201611123087 A CN 201611123087A CN 106378481 A CN106378481 A CN 106378481A
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- milling head
- main frame
- control machine
- machine tool
- annulus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C9/00—Details or accessories so far as specially adapted to milling machines or cutter
- B23C9/005—Details or accessories so far as specially adapted to milling machines or cutter milling heads
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Abstract
The invention discloses a milling head applied to a numerical control machine tool. The milling head comprises a connecting seat, an elongation seat, a first rotating shaft, a first gear, a milling head body, a second rotating shaft and a second gear, wherein the connecting seat is provided with a hole for a main shaft of a host machine to enter; the elongation seat is fixedly connected with the end face of the connecting seat; the first rotating shaft is arranged in the elongation seat; the first gear is fixedly arranged on the first rotating shaft; the milling head body is fixedly connected with the elongation seat; the second rotating shaft is arranged in the milling head body and is used for driving a cutter to rotate; the first rotating shaft and the second rotating shaft are arranged in a manner of being vertical to each other; the second gear is fixedly arranged on the second rotating shaft and is matched with the first gear. Besides, the invention also discloses a numerical control machine tool. According to the milling head disclosed by the invention, the connecting seat and the elongation seat are designed as separated structures, so the connecting seat and the elongation seat can be respectively designed according to different dimensions and required lengths of the host machine or a ram end face of the host machine. By the design, the complexity coefficient of each member is reduced, and the manufactured connecting seat and elongation seat are better in precision.
Description
Technical field
The present invention relates to digit ctrol machine tool field, particularly to a kind of strong milling head of degree of flexibility for Digit Control Machine Tool and adopt
Digit Control Machine Tool with this milling head.
Background technology
The external shell of existing milling head is an entirety, and an end face of this housing is used for and main frame ram combines, should
The length of housing is the extended length of milling head.Therefore, when the ram change in size of main frame or the geometrical extension change of milling head
When, it is required for changing the shell body of milling head.The degree of flexibility of this milling head is poor, and complex contour coefficient height leads to be designed and manufactured as
This is all higher.
Additionally, when installing, milling head needs to align using the play main frame ram of sum control lathe of driving, then can be manually rotated
The main shaft of milling head, makes the driving key on the straight end-face key and milling head transmission disk on main frame main shaft combine, then can be manually rotated milling head
Main shaft, then with screw, milling head is fixed on main frame ram.During dismounting, milling head is also required to play using driving, and keeps sum
The main frame ram of control lathe aligns, and then loosens screw more manually.Therefore, the handling of milling head rely on technical ability and the warp of workman completely
Test, complete once to load and unload needs 2 hours about, and due to lacking identification safety guard, often due to operational error
The positioning of damage milling head or main frame ram end face, drive disk assembly.
Although the pin-and-hole with the detent fit on main frame ram is provided with existing milling head housing, due to the two
Positioning accuracy request very high, this requires that process equipment precision is very high, in turn result in processing cost improve.And, one
As main frame can configure multiple milling heads of different size, then the pin-and-hole on each milling head housing will with ram on determine
Position pin has very high positioning precision, is not inconsistent it is possible to cause milling head shell in work of numerical control machine once the position of the two
Body is scrapped.
Content of the invention
In view of defect present in prior art, one embodiment of the present invention provides a kind of milling for Digit Control Machine Tool
Head, including:
End face has the main frame of described Digit Control Machine Tool or the connecting seat of main frame ram mating shapes, described connection seat tool
There is the hole entering for described main frame main shaft;
For the extended seat being fixedly connected with described connecting seat other end;
Be arranged in described extended seat for the first rotary shaft being fixedly connected with the main shaft of described main frame;
It is fixedly installed on the first gear in described first rotary shaft;
For the body of milling head being fixedly connected with described extended seat, described first rotary shaft can enter described body of milling head;
It is arranged at the second rotary shaft for driving cutter rotation in described body of milling head, described first rotary shaft and described
Second rotary shaft is arranged mutual vertically;And
It is fixedly installed on the second gear in described second rotary shaft, described second gear and mutual of described first gear
Join, so that the power of described main frame main shaft can conduct to the second rotary shaft via described first rotary shaft.
In embodiments of the present invention, connecting seat and extended seat are designed as Split type structure, so can be according to difference
Main frame or main frame ram end face size and need conversion length, separately design connecting seat and extended seat.So design
So that the quantity manufacturing mould reduces, the complexity coefficient of part reduces, and therefore manufactured connecting seat and extended seat precision are more preferable,
Cost is lower.
In an embodiment of the invention, the described milling head for Digit Control Machine Tool can also include regularly sheathed
Drive plate in described first rotary shaft, the end face of described drive plate has and the main shaft straight end-face key coupling of described main frame
Keyway, described drive plate is additionally provided with locating slot;And quasi- stop device, including:It is fixedly arranged at the upper of described extended seat
Housing;It is fixedly arranged at the first flexible member in described housing;It is arranged in described housing and and described first bullet
Property element associated telescopic element, described telescopic element have extend towards described main frame or described main frame ram direction described
First bar of housing and the second bar extending described housing towards described drive plate radial direction;Described first flexible member tool
There are relaxed state and impaction state:When described first flexible member is in relaxed state, described second bar is in described transmission
In the locating slot of disk;When described first flexible member is in impaction state, the end face extruding of described main frame or main frame ram
Described first bar, so that described second bar is deviate from by the locating slot of described drive plate.
In an embodiment of the invention, described first gear and described second gear are curved-tooth bevel gear wheel set;
External spline teeth is provided with described first rotary shaft, in the endoporus of described first gear, is provided with the inner spline gear of coupling;Described
Flat key groove is symmetrically provided with the second rotary shaft, in the endoporus of described second gear, is symmetrically provided with flat key.
In an embodiment of the invention, the described milling head for Digit Control Machine Tool can also include being arranged at described
Expansion sleeve in first rotary shaft, described expansion sleeve includes:
Circumferential multiple screw;
The first tapered annulus of the section that is sheathed on described screw;
The second tapered annulus of the section that is sheathed on described screw, described second annulus narrow end and described first
The end of narrowing of annulus is oppositely arranged;
It is arranged at the section of described first annulus and described second annulus lateral surface the 3rd annulus triangular in shape, described
The protuberance of three annulus is filled between described first annulus and described second annulus;
It is arranged at the section of described first annulus and described second annulus medial surface the 4th annulus triangular in shape, described
The protuberance of four annulus is filled between described first annulus and described second annulus;
When described expansion sleeve is squeezed, the expansion end radial contraction of described first annulus, the expansion of described second annulus
Open end radial dilatation.
In an embodiment of the invention, the described milling head for Digit Control Machine Tool can also include being arranged at described
Graduated ring on body of milling head periphery;Be arranged on described extended seat periphery for the vernier indexing for described body of milling head.
In an embodiment of the invention, the described milling head for Digit Control Machine Tool can also include being close to described
Body of milling head end place plane, is circumferentially formed at the water dumping groove in described second rotary shaft below this plane;It is close to institute
State body of milling head end place plane, side is circumferentially formed at the labyrinth seal portion in described second rotary shaft on this plane;Institute
State labyrinth seal portion to include:It is formed at the ring-shaped depression on axle journal in described second rotary shaft;It is arranged in described ring-shaped depression
The second flexible member, the periphery of described second flexible member and described body of milling head be in close contact, described second flexible member
It is respectively provided with gap with each surface of described ring-shaped depression.
In an embodiment of the invention, the inner headed face of described extended seat axially arranged there is reinforcement along it.
Inner chamber due to the frequent part to be put in of vertical elongated milling head is processed, and it requires that body of milling head size is little, prolongs
The excircle dimension of swinging seat is little.Existing milling head extended seat is using cylindrical, thick-walled structure, weight weight poor rigidity, milling head of the present invention
Extended seat using cone, thin-walled and internal setting reinforcement structure, lightweight rigidity is good.
The main shaft supporting of existing milling head adopts angular contact ball bearing, and gear pair adopts straight bevel gear pair, poor rigidity, cutting
Ability.Second rotation e axle supporting of milling head of the present invention adopts taper roll bearing, and gear pair adopts curved-tooth bevel gear wheel set, rigidity
Good, cutting power is strong.
Additionally, cutting fluid often in existing milling head entering in the bearing of the second rotary shaft, dilution grease, corrosion axle
Hold, cause the situation of bearing failure.The bearing of second rotary shaft of the present invention adopts the group of water dumping groove, labyrinth seal and grease
Conjunction mode, not only the size of milling head is little but also good sealing effect.
Present invention also offers a kind of Digit Control Machine Tool, including:
Any one milling head as above;
Alignment pin at least two main frames being fixedly installed on described Digit Control Machine Tool or main frame ram;
Be fixedly embedded in described connecting seat end face etc. quantity and described alignment pin coupling positioning sleeve, described fixed
Between the periphery of position set and described connecting seat, there is annular chamber;
It is opened in the glueing channel connecting with described annular chamber on described connecting seat and plastic emitting passage.
The present invention is provided with positioning sleeve on the connecting seat of milling head, arranges alignment pin on main frame or main frame ram, fixed
It is accurately positioned by the way of encapsulating after position set and alignment pin centering.So design is so that alignment pin on main frame ram
Pitch-row tolerance and the pitch-row tolerance of connecting seat can reduce, processing request can be met using common process equipment, therefore drop
Low processing cost.Positioning sleeve can also be made using after superior alloy steel quenching, qualitative, accurate grinding, and stable accuracy uses
Life-span length, even if replacement cost is relatively low after abrasion.
In certain embodiments of the present invention, described connecting seat is provided with outward for the position embedding described positioning sleeve
The venthole of portion's connection, so that when described alignment pin and described positioning sleeve combine, the gas within described positioning sleeve can be through
Discharged by described venthole.
In certain embodiments of the present invention, described Digit Control Machine Tool can also include being fixedly arranged at described numerical control
Pulling claw on the main frame of lathe or main frame ram;It is fixedly arranged at the blind rivet on described connecting seat;Described pulling claw has and draws
Tight state and relaxed state:When described pulling claw is in tension, described blind rivet is clamped by described pulling claw;At described pulling claw
When relaxed state, described blind rivet can disengage with described pulling claw.
In certain embodiments of the present invention, described Digit Control Machine Tool can also include being arranged at described connecting seat and be used for
The signal shaft on end face fitted with main frame or the main frame ram of described Digit Control Machine Tool;It is arranged at the main frame of described Digit Control Machine Tool
Or the signal supervisory instrument of on main frame ram and described signal shaft coupling.
Digit Control Machine Tool provided by the present invention being capable of automatic loading and unloading milling head.This milling head is provided with quasi- stop device, lathe or machine
Bed ram is provided with signal shaft.During handling milling head, milling head positions in head storehouse or adnexa dolly, by main frame (ram) along X and Y-direction
Move to setting position (the main frame alignment of shafts and milling head central alignment), unclamp pulling claw, main frame is moved to setting position along Z-direction
(main frame ram end face and milling head connecting seat end contact), tension pulling claw, the blind rivet on pulling claw automatic tension milling head connecting seat, so
Sequentially start Y, Z, X-coordinate afterwards by setup program to complete to change an action, this process is executed automatically by machine tool numerical control system, behaviour
As long as making, workman presses executive button, a process is changed in monitoring, as long as loading and unloading about 5 minutes, drastically increases work effect
Rate.Quasi- stop device and signal shaft constitute identification safety guard, thus without damage or damage milling head and main frame or main frame
Ram.
Brief description
Fig. 1 is the Digit Control Machine Tool of the milling head putting different size in a storehouse;
Fig. 2 is the front view that milling head and main frame ram combine;
Fig. 3 is the right view of milling head;
Fig. 4 is the sectional view in Fig. 3 along A-A hatching;
Fig. 5 is the sectional view in Fig. 4 along F-F hatching;
Fig. 6 is the enlarged diagram of the quasi- stop device shown in Fig. 4;
Fig. 7 is the schematic diagram of the quasi- stop device of milling head;
Fig. 8 is the sectional view along the B-B hatching in Fig. 7;
Fig. 9 is the partial enlarged drawing of expansion sleeve in Fig. 4;
Figure 10 shows figure for milling head internal construction details;
The partial enlarged drawing of water dumping groove and labyrinth seal (H part) in Figure 11 Fig. 4;
Figure 12 is the partial sectional view in Fig. 4 along C-C hatching;
Figure 13 is the sectional view in Fig. 3 along D-D hatching;
Figure 14 is the sectional view in Fig. 3 along E-E hatching;
Figure 15 is the schematic diagram of the signal shaft cooperation in detection switch and milling head on main frame or main frame ram.
Specific embodiment
In order that invention purpose, technical scheme and advantage clearer, below in conjunction with the accompanying drawings with specific embodiment to send out
Bright it is described in further detail.Although showing disclosure exemplary embodiment in accompanying drawing it being understood, however, that can be with each
The form of kind is realized the present invention and should not be limited by embodiments set forth here.On the contrary, these embodiments are provided to be able to
The more thorough explanation present invention, and complete for the scope of the present invention can be conveyed to those skilled in the art.
Shown in by Fig. 1 there is the Digit Control Machine Tool of ram as a example, the main shaft of the main frame of this Digit Control Machine Tool is arranged at main frame and slides
On pillow, ram can move to exact position according to the instruction of digital control system in the range of movement in tri- directions of X, Y, Z, and then
Main frame main shaft can combine with adnexa dissimilar, various sizes of in head storehouse.
With reference to shown in Fig. 2~Fig. 4, one embodiment of the invention provides a kind of milling head for Digit Control Machine Tool, main inclusion
For connect with main frame ram 1 connecting seat 2, extended seat 3, the first rotary shaft 4 being arranged in extended seat 3, be arranged at first
First gear 5 in rotary shaft 4, body of milling head 6, the second rotary shaft 7 being arranged in body of milling head 6, it is arranged in the second rotary shaft 7
Second gear 8.
The end surface shape of the shape of one end face of connecting seat 2 and main frame ram 1 matches, and has to enter for main frame main shaft
The hole entering.Extended seat 3 passes through another end face positioning of pin and connecting seat 2, is then fixed by screw.First rotary shaft 4
It is arranged in extended seat 3, its one end can connect with main frame main shaft 1-1.Body of milling head 6 is fixedly installed on one end of extended seat 3, and
And it has the hole entering for the first rotary shaft 4.Second rotary shaft 7 is arranged in body of milling head 6.Second gear 8 is fixedly disposed
In the second rotary shaft 7, second gear 8 and first gear 5 match.Therefore, the power of main frame main shaft 1-1 can be via first
Rotary shaft 4 is passed to the second rotary shaft 7.First rotary shaft 4 and the orthogonal arrangement of the second rotary shaft 7.Second rotary shaft 7
Lower end be used for fixed cutting tool.
In the present embodiment, main frame is horizontal, and therefore extended seat 3 is horizontally disposed with, and body of milling head 6 is vertically arranged.Other
Embodiment, when main frame for vertical when, extended seat 3 should be vertically arranged, and body of milling head 6 is then horizontally disposed with.Of course it is not excluded main frame is deposited
In other arrangements, so that extended seat 3 and body of milling head 6 angled (non-be mutually perpendicular to) arrangement.
In conjunction with Fig. 5, extended seat 3 is simple revolving body, when needing different development length, can adopt various sizes of
Extended seat 3, such as 500mm, 750mm, 1000mm, 1250mm etc..Connecting seat 2 is simple rectangular shape, changes its size
So that it can adapt to the main frame ram of different cross section size, such as 450mm × 450mm, 480mm × 580mm, 500mm ×
500mm、520mm×580mm.Split type extended seat 3 and connecting seat 2 manufacture more simple, and the main frame for various sections is slided
Pillow and required development length all can simply be selected.For example, it is possible to simple select to be applied to cross-sectional sizes be 480mm ×
The connecting seat 2 of the main frame ram of 580mm and extent are the extended seat 3 of 1000mm.
In an embodiment of the invention, the left end of extended seat 3 and right-hand member are in substantially straight mesa-shaped, and mid portion is hammer
Body, the diameter of left end is less than the diameter of right-hand member, and is provided with four reinforcements in the endoporus of extended seat 3.
With reference to shown in Fig. 3~4, in an embodiment of the invention, the first rotary shaft 4 is regularly arranged with transmission
Disk 9, the end face of drive plate 9 has the keyway 91 with the straight end-face key 1-2 coupling of main frame main shaft 1-1, on the periphery of drive plate 9
It is additionally provided with locating slot 92.Quasi- stop device 10 is fixedly installed on the inner headed face of extended seat 3.
Referring in particular to Fig. 6~8, housing 101 that quasi- stop device 10 includes being fixedly arranged on the inner headed face of extended seat 3,
The flexible member 102 that is fixedly arranged in housing 101, be arranged in housing 101 and stretching on flexible member 102 of conflicting
Contracting element 103.
Housing 101 is fixedly mounted on extended seat 3 by screw, and it has a long and narrow chamber.Flexible member 102 can
To adopt spring, it is arranged at above-mentioned long and narrow within the chamber.Conflict on the inwall of housing 101 in one end of flexible member 102.Stretch
One end that contracting element 103 contacts with flexible member 102 is in "] " shape.The depth that "] " is held is shallower than oneself when flexible member 102 relaxes
By length.Telescopic element 103 also has first bar 104, Yi Jiyi extending housing 101 towards main frame ram 1 direction
The individual radial direction towards drive plate 9 extends the second bar 105 of housing 101.Second bar 105 can be with the positioning of drive plate 9
Groove 92 mates.
During use, flexible member 102 has relaxed state and impaction state, when flexible member 102 is in relaxed state,
Second bar 105 is in the locating slot 92 of drive plate 9.When main frame ram end face extrude the first bar 104 when, the first bar 104 to
Move left, flexible member 102 is compressed, the second bar 105 is moved to the left simultaneously to be deviate from by the locating slot 92 of drive plate 9.
The advantage of this design is, when milling head leaves unused, (milling head does not have selected, not with main frame or main frame cunning
Pillow combines), by the locating slot 92 of drive plate 9 and the locking of the second bar 105, so that the first rotary shaft 4 does not rotate, enter
And the keyway 91 on drive plate 9 is horizontal forever.When milling head is selected, the straight end-face key 1-2 of main frame main shaft 1-1 is with regard to energy
Enough it is exactly in keyway 91, it is to avoid relative position mistake between drive plate 9 and main frame main shaft 1-1 and the end caused
Face is damaged.
In an embodiment of the invention, the first rotary shaft 4 is arranged with an expansion sleeve 11, in this expansion sleeve 11
Expansion under, complete the first rotary shaft 4 and the connection of drive plate 9.
With reference to shown in Fig. 4 and Fig. 9, specifically, this expansion sleeve 11 includes the first tapered annulus 111 of section, section is in
Second annulus 112 of taper, section the 3rd annulus 113 triangular in shape, section the 4th annulus 114 triangular in shape and along
Multiple screws 115 of circle distribution.The end of narrowing of the first annulus 111 and the second annulus 112 is relatively sheathed on multiple screws 115
On, therefore all it is inwardly formed depression in their lateral surface and medial surface.Section the 3rd annulus 113 triangular in shape is as outer ring
It is placed on the first annulus 111 and the lateral surface of the second annulus 112, the protuberance of the 3rd annulus 113 is filled in the first annulus 111 He
In depression between second annulus 112.Section the 4th annulus 114 triangular in shape is arranged at the first annulus 111 He as inner ring
The medial surface of the second annulus 112, the protuberance of the 4th annulus 114 is filled in depression between the first annulus 111 and the second annulus 112
Interior.When being extruded to expansion sleeve 11 using multiple screws 115, the expansion end (the big one end of diameter) of the first first annulus 111
Radial contraction, expansion end (the big one end of the diameter) radial dilatation of subsequent second annulus 112, extrude the 3rd annulus 113 and the 4th
Annulus 114 so that it is deformed so that the periphery swelling drive plate 9 of the 3rd annulus 113 is so that the inner headed face of the 4th annulus 114 is swollen
Tight first rotary shaft 4.It is all interference fit actually between expansion sleeve 11 and the first rotary shaft 4, drive plate 9.
The milling head that Figure 10 provides for the present invention is installed on the schematic diagram on main frame ram, the content phase that Figure 10 and Fig. 4 represents
With merely for convenience being marked to detail section and describe.
With reference to shown in Figure 10, the first rotary shaft 4 is mainly by the bearing 31 being arranged in extended seat 3, bearing 32 and bearing 33
Supporting positioning.Positioning sleeve 34 and positioning sleeve 35 are installed in the endoporus of extended seat 3.Bearing 31, bearing 32 are installed on positioning sleeve 34
On, and separated by the equal outer separator of thickness 36 and inner spacing collar 37, to increase supporting rigidity.Bearing 33 is installed on positioning sleeve 35
On.
Extended seat 3 and body of milling head 6 position via sleeve 12, and by four along the circumferentially distributed screw in extended seat 3 left side
With the nut fastening being arranged in body of milling head 6 right side T-slot.It is provided between the axle journal of sleeve 12 and first gear 5 in pairs
Angular contact ball bearing 36, this paired angular contact ball bearing 36 is locked nut check on the axle journal of first gear 5, and by bearing
Cover 37 axially positions.Angular contact ball bearing 36 is separated by inner spacing collar 38 and outer separator 39 in pairs.
In an embodiment of the invention, the second rotary shaft 7 is by the high-precision conical rolling being arranged within body of milling head 6
Sub- bearing 61,62 supporting positioning, then by locking nut 63, adjustment packing ring 64 and 65 pretensions.Cutter is then by being arranged on the second rotation
The screw 71 of axle 7 end cone in the hole is strained, and the keyway on cutter can be tied with the straight end-face key 72 of the second rotary shaft 7 end
Close, to realize the smooth transfer of power.
With reference to Fig. 4 and Figure 11, in an embodiment of the invention, the described milling head for Digit Control Machine Tool also includes tightly
Against described body of milling head 6 end place plane, be circumferentially formed at the water dumping groove in described second rotary shaft below this plane
73.And it is close to described body of milling head 6 end place plane, side is circumferentially formed at described second rotary shaft 7 on this plane
On labyrinth seal portion.Labyrinth seal portion includes the ring-shaped depression 74 being formed on axle journal in the second rotary shaft 7 and is arranged at ring
The second flexible member 75 in shape depression 74.The periphery of the second flexible member 75 and body of milling head 6 are in close contact, the second elasticity unit
Each surface (upper, left, lower three faces in Figure 11) of part 75 and ring-shaped depression 74 is respectively provided with gap.Above-mentioned gap is used for filling profit
Lubricating oil fat.
During work, fill grease between ring-shaped depression 74 and the second flexible member 75 (can be spring leaf), be conducive to
Therebetween relative motion, and can stop further in the entrance bearing of cutting fluid.The main shaft bearing of existing milling head is adopted
With clearance seal it is impossible to intercept cutting fluid well, cutting fluid often occurs and enters dilution profit in the bearing 62 of the second rotary shaft 7
Consistent lubricant, corrosion bearing, cause bearing failure.Present embodiment then adopts the compound mode of water dumping groove+labyrinth seal+grease,
Not only reduce the size of this part, and there is better seal effect.
In an embodiment of the invention, spacer can also be arranged on the axle journal of first gear 5 and second gear 8
13 and spacer 14, it is beneficial to the engagement of adjustment first gear 5 and second gear 8.
With reference to shown in Fig. 4, in an embodiment of the invention, above-mentioned first gear 5 and second gear 8 are arc
Bevel gear pair.The periphery of the second rotary shaft 7 is symmetrically provided with flat key groove, is provided with symmetrical in the endoporus of second gear 8
Ground flat key.Shown in ginseng Figure 12, the first rotary shaft 4 is provided with external spline teeth, in the endoporus of first gear 5, is provided with the interior of coupling
Spline tooth.
In an embodiment of the invention, the side of body of milling head 6 is also provided with for processing, assembling, keep in repair
Dismountable cover plate 66 of maintenance.
Additionally, a kind of present invention also offers Digit Control Machine Tool.Because Fig. 4 and Figure 10 all shows milling head and machine ram phase
In conjunction with schematic diagram, therefore referring still to Fig. 4 and Figure 10, this kind of Digit Control Machine Tool is described herein.
With reference to Fig. 3, Fig. 4 and Figure 13, Digit Control Machine Tool provided by the present invention includes any embodiment as described above
Milling head, and at least provided with two alignment pin 1-3 on the main frame ram 1 of Digit Control Machine Tool, fixing in the end face of connecting seat 2
The positioning sleeve 21 of the quantity such as embedded and described alignment pin 1-3 coupling.Between the periphery of positioning sleeve 21 and connecting seat 2, there is ring
Shape chamber 22.The glueing channel 23 connecting with annular chamber 22 and plastic emitting passage 24 are offered on described connecting seat 2.Positioning glue can be from
Glueing channel 23 enters, and after whole annular chamber 22, part positioning glue is discharged (to prove annular chamber 22 by plastic emitting passage 24
It is filled).After encapsulating, positioning sleeve 21 is limited in the degree of freedom of six direction.
Using this design, the pitch-row tolerance on main frame ram 1 and connecting seat 2 can be loosened, with common equipment
Just processing request can be met, reduce processing cost.Even if main frame ram 1 and connecting seat 2 go out in initial positioning combination
Now position deviation slightly, also will not damage because of rigid collision, and technical staff only needs to use encapsulating again by after the two combination
Mode be accurately positioned.Positioning sleeve is quenched using superior alloy steel, make after qualitative, accurate grinding, stable accuracy, uses
Life-span length, even if replacement cost is relatively low after abrasion.
With continued reference to Figure 13, in an embodiment of the invention, the position that connecting seat 2 is used for embedding positioning sleeve 21 sets
It is equipped with the venthole 25 with ft connection, so that gas energy when alignment pin 1-3 and positioning sleeve 21 combine, within positioning sleeve 21
Enough discharge via venthole 25.
With reference to Fig. 3, Fig. 4 and Figure 14, in an embodiment of the invention, Digit Control Machine Tool also includes being fixedly arranged at
Pulling claw 1-4 on main frame or main frame ram 1, is fixedly arranged at the blind rivet 26 on institute's connecting seat 2.Pulling claw 1-4 has tension
State and relaxed state:When described pulling claw 1-4 is in tension, blind rivet 26 is clamped by pulling claw 1-4, to realize connecting seat 2
With being fixedly connected of main frame ram 1.When described pulling claw 1-4 is in relaxed state, blind rivet 26 can disengage with pulling claw 1-4, with
Milling head is disassembled from main frame ram 1.In the embodiment shown in fig. 3, pulling claw 1-4 and blind rivet 26 respectively have four.
With reference to shown in Fig. 4 and Figure 15, in an embodiment of the invention, in the main frame of connecting seat 2 and Digit Control Machine Tool
Or it is provided with signal shaft 27 on the end face of main frame ram 1 laminating.The main frame or main frame ram 1 of Digit Control Machine Tool are provided with
Signal supervisory instrument 1-5 with signal shaft 27 coupling.
In order to expand the range of work of Digit Control Machine Tool main frame, generally need to configure several function accessories heads.Each
The power of function accessories head, axial stroke (distance of stretch out and draw back) all differences of moment of torsion, rotating speed and main frame main shaft, therefore main frame needs
Identification current state is empty driving state or attachment status, and identification is which adnexa (vertical elongated milling head, omnipotent milling further
Head, facing head etc.) it is installed on main frame.Therefore, it can install a signal shaft 27, each adnexa on each accessory head
Signal shaft 27 relative position different.Installation detecting device 1-5 (photoelectricity on the correspondence position of main frame or main frame ram 1
Detection switch).Define different switches corresponding to different signal shafts 27.For example, No. 1 switch corresponds to vertical elongated milling head, when 1
Number switch obtain signal (signal shaft triggering photoelectric detection switch) when, system just calls the special sub- journey of vertical elongated milling head automatically
Sequence, carries out power, the axial stroke (distance of stretch out and draw back) of moment of torsion, rotating speed and main frame main shaft limits, in order to avoid damaging lathe or generation
Security incident.
Above various embodiments of the present invention are described in detail.It will be understood by those skilled in the art that can be not inclined
In the case of the scope of the invention (being limited by the accompanying claims), various modifications, change and change are carried out to embodiment
Change.To the explanation of right should from overall explain and meet the widest range consistent with explanation however it is not limited to example or
Enforcement example in detailed description.
Claims (11)
1. it is used for the milling head of Digit Control Machine Tool, including:
End face has the main frame of described Digit Control Machine Tool or the connecting seat of main frame ram mating shapes, and described connecting seat has confession
The hole that described main frame main shaft enters;
For the extended seat being fixedly connected with described connecting seat other end;
Be arranged in described extended seat for the first rotary shaft being fixedly connected with the main shaft of described main frame;
It is fixedly installed on the first gear in described first rotary shaft;
For the body of milling head being fixedly connected with described extended seat, described first rotary shaft can enter described body of milling head;
It is arranged at the second rotary shaft for driving cutter rotation in described body of milling head, described first rotary shaft and described second
Rotary shaft is arranged mutual vertically;And
It is fixedly installed on the second gear in described second rotary shaft, described second gear and described first gear are mutually matched,
So that the power of described main frame main shaft can conduct to the second rotary shaft via described first rotary shaft.
2. the milling head for Digit Control Machine Tool according to claim 1, including:
Regularly it is sheathed on the drive plate in described first rotary shaft, the end face of described drive plate has the master with described main frame
The keyway of axial end key coupling, described drive plate is additionally provided with locating slot;And
Quasi- stop device, including:
It is fixedly arranged at the upper housing of described extended seat;
It is fixedly arranged at the first flexible member in described housing;
Be arranged at telescopic element that is in described housing and associating with described first flexible member, described telescopic element have towards
Described main frame or described main frame ram direction are extended the first bar of described housing and are extended towards described drive plate radial direction
Go out the second bar of described housing;
Described first flexible member has relaxed state and impaction state:
When described first flexible member is in relaxed state, described second bar is in the locating slot of described drive plate;
When described first flexible member is in impaction state, the end face extruding described first of described main frame or main frame ram
Bar, so that described second bar is deviate from by the locating slot of described drive plate.
3. the milling head for Digit Control Machine Tool according to claim 1 and 2, wherein:
Described first gear and described second gear are curved-tooth bevel gear wheel set;
External spline teeth is provided with described first rotary shaft, in the endoporus of described first gear, is provided with the inner spline gear of coupling;
Flat key groove is symmetrically provided with described second rotary shaft, in the endoporus of described second gear, is symmetrically provided with flat key.
4. the milling head for Digit Control Machine Tool according to claim 1 and 2, including:
It is arranged at the expansion sleeve in described first rotary shaft, described expansion sleeve includes:
Circumferential multiple screw;
The first tapered annulus of the section that is sheathed on described screw;
The second tapered annulus of the section that is sheathed on described screw, described second annulus narrow end and described first annulus
End of narrowing be oppositely arranged;
It is arranged at the section of described first annulus and described second annulus lateral surface the 3rd annulus triangular in shape, described 3rd circle
The protuberance of ring is filled between described first annulus and described second annulus;
It is arranged at the section of described first annulus and described second annulus medial surface the 4th annulus triangular in shape, described 4th circle
The protuberance of ring is filled between described first annulus and described second annulus;
When described expansion sleeve is squeezed, the expansion end radial contraction of described first annulus, the expansion end of described second annulus
Radial dilatation.
5. the milling head for Digit Control Machine Tool according to claim 1 and 2, including:
It is arranged at the graduated ring on described body of milling head periphery;
Be arranged on described extended seat periphery for the vernier indexing for described body of milling head.
Circumference
6. the milling head for Digit Control Machine Tool according to claim 1 and 2, including:
It is close to described body of milling head end place plane, be circumferentially formed at getting rid of in described second rotary shaft below this plane
Tank;
It is close to described body of milling head end place plane, side is circumferentially formed at the fan in described second rotary shaft on this plane
Palace sealing;
Described labyrinth seal portion includes:
It is formed at the ring-shaped depression on axle journal in described second rotary shaft;
It is arranged at the second flexible member in described ring-shaped depression, the periphery of described second flexible member and described body of milling head are tight
Contiguity is touched, and each surface of described second flexible member and described ring-shaped depression is respectively provided with gap.
7. the milling head for Digit Control Machine Tool according to claim 6, wherein:
Axially arranged there is reinforcement along it on the inner headed face of described extended seat.
8. Digit Control Machine Tool, including:
Milling head as any one of claim 1~7;
Alignment pin at least two main frames being fixedly installed on described Digit Control Machine Tool or main frame ram;
Be fixedly embedded in described connecting seat end face etc. quantity and described alignment pin coupling positioning sleeve, described positioning sleeve
Periphery and described connecting seat between there is annular chamber;
It is opened in the glueing channel connecting with described annular chamber on described connecting seat and plastic emitting passage.
9. Digit Control Machine Tool according to claim 8, including:
Described connecting seat is provided with the venthole with ft connection for the position embedding described positioning sleeve, so that described positioning
When pin and described positioning sleeve combine, the gas within described positioning sleeve can discharge via described venthole.
10. Digit Control Machine Tool according to claim 8 or claim 9, including:
It is fixedly arranged at the pulling claw on the main frame of described Digit Control Machine Tool or main frame ram;
It is fixedly arranged at the blind rivet on described connecting seat;
Described pulling claw has tension and relaxed state:
When described pulling claw is in tension, described blind rivet is clamped by described pulling claw;
When described pulling claw is in relaxed state, described blind rivet can disengage with described pulling claw.
11. Digit Control Machine Tools according to claim 8 or claim 9, including:
Be arranged at described connecting seat for and the end face fitted of the main frame of described Digit Control Machine Tool or main frame ram on signal shaft;
It is arranged at the signal supervisory instrument of on the main frame of described Digit Control Machine Tool or main frame ram and described signal shaft coupling.
Priority Applications (1)
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CN201611123087.7A CN106378481B (en) | 2016-12-08 | 2016-12-08 | For the milling head and numerically-controlled machine tool of numerically-controlled machine tool |
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CN201611123087.7A CN106378481B (en) | 2016-12-08 | 2016-12-08 | For the milling head and numerically-controlled machine tool of numerically-controlled machine tool |
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CN106378481A true CN106378481A (en) | 2017-02-08 |
CN106378481B CN106378481B (en) | 2018-06-01 |
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CN201611123087.7A Expired - Fee Related CN106378481B (en) | 2016-12-08 | 2016-12-08 | For the milling head and numerically-controlled machine tool of numerically-controlled machine tool |
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Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
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CN107116388A (en) * | 2017-05-26 | 2017-09-01 | 山东永华机械有限公司 | The achieving automatic head replacement mechanism of the axle gantry machining center of bridge-type five |
CN112122925A (en) * | 2020-08-25 | 2020-12-25 | 北京北一机床股份有限公司 | Multi-shaft output drilling and milling head device with feeding function and method |
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