CN208214892U

CN208214892U - A kind of double Double-cutter head milling machines for gripping long axis tubing workpiece of use with high-efficiency high-accuracy

Info

Publication number: CN208214892U
Application number: CN201820407333.XU
Authority: CN
Inventors: 乔印保; 刘阳
Original assignee: Anhui Ze Le Mechanical And Electrical Co Ltd
Current assignee: Anhui Ze Le Mechanical And Electrical Co Ltd
Priority date: 2018-03-26
Filing date: 2018-03-26
Publication date: 2018-12-11
Anticipated expiration: 2028-03-26

Abstract

The double Double-cutter head milling machines for gripping long axis tubing workpiece of the use that the utility model discloses a kind of with high-efficiency high-accuracy, including lathe bed frame, positioning pipe is connected on the cross tube of the lathe bed frame, its sheer pole is socketed hydraulic cylinder, and hydraulic cylinder connects hydraulic station by connection inlet tube, inlet tube, hydraulic station connects liquid back pipe, liquid back pipe connection liquid cylinder pressure, hydraulic cylinder connect pressing plate shaft, and the upper end connects pressing plate；The affixed linear guide in lathe bed frame top surface, symmetrically card matches two groups of sliding blocks in linear guide, two groups of sliding blocks are uniformly fixed in housing bottom sides angle, upper housing bottom side connects retainer, Power Component is installed on lathe bed side, upper pedestal connects lift in height mechanism, and the spindle drum of lift in height mechanism connects Double-cutter head cutting mechanism；The present apparatus is clamped using hydraulic multistage, and for X-servo motor by roller screw rod transmission, repetitive positioning accuracy is up to 0.005mm, and positioning accuracy is up to 0.01mm/1000mm, and efficiency improves 10 times or more compared with plain-milling machine.

Description

A kind of double double-poles for gripping long axis tubing workpiece of use with high-efficiency high-accuracy Head milling machine

Technical field

The utility model relates to technical fields of mechanical processing, use double fastener with high-efficiency high-accuracy more particularly to a kind of Hold the Double-cutter head milling machine of fixed long axis tubing workpiece.

Background technique

CNC milling machine is a kind of automatic processing device to grow up on the basis of general milling machine, the processing technology of the two Essentially identical, structure is also somewhat like.CNC milling machine, which has, to be divided into without tool magazine and with tool magazine two major classes.Wherein with the numerical control of tool magazine Milling machine is also known as machining center.

In order to solve working shaft-like, pipe part surface keyway, through-hole, T-slot, dovetail groove, scale slot, anti-skid chequer, The phenomenon that precision generated when the shapes such as step is low, surface quality is poor, part deformation is serious, inefficiency and the one of development & production Amount of money control automatic milling machine.

Equipment can be completed the processing of each angle shape of circumference, avoided using automation Digital Program Control, clamped one time The accumulated error that secondary clamping generates.The distinctive V-type fixture of lathe and hydraulic clamp energy strict guarantee process kind Workpiece reliability of positioning, planer-type Die Design are remarkably improved workpiece length limit.Double-head can simultaneous processing, efficiency compared with Plain-milling machine improves 10 times or more.

Utility model content

The purpose of this utility model is to provide a kind of holding admittedly using double fastener with high-efficiency high-accuracy for existing issue The Double-cutter head milling machine of fixed length central siphon class workpiece.

The utility model is achieved through the following technical solutions: a kind of use with high-efficiency high-accuracy is double to be gripped The Double-cutter head milling machine of long axis tubing workpiece, including lathe bed frame connect on the cross tube of the lathe bed frame several in parallel Positioning pipe, the hole among sheer pole are socketed hydraulic cylinder, and hydraulic cylinder connects outlet of inlet pipe by feed liquor branch pipe, and inlet tube enters Mouth end connects the liquid outlet of hydraulic station by feed liquor branch pipe, and the liquid return hole of hydraulic station passes through time liquid branch pipe connection liquid back pipe and exports End, the arrival end of liquid back pipe connect pressing plate shaft lower end by returning liquid branch pipe connection liquid cylinder pressure, the piston rod of hydraulic cylinder, and the upper end connects Connect pressing plate；The affixed long linear guide in the two sides top surface of the lathe bed frame, symmetrically card matches two groups of big sliding blocks in long linear guide, and two The big sliding block of group is uniformly fixed in housing bottom sides angle, the retainer of upper housing bottom side connection Power Component, Power Component It is installed on lathe bed frame side, the Power Component is by retainer, nut, long screw, fixing seat, clamping cap, X from synchronization Wheel, the main synchronizing wheel of X, X synchronous belt, electric machine support, X-servo motor form, the lower opening inner sleeve connected nut of the retainer, in nut It is threadedly engaged connection long screw, long screw both ends are installed on one inside of lathe bed frame, the long screw one end by fixing seat X is socketed from synchronizing wheel, for X from synchronizing wheel by the synchronous main synchronizing wheel of band connection X of X, the main synchronizing wheel of X is socketed on the defeated of X-servo motor On shaft, X-servo motor is installed on electric machine support, and electric machine support is fixed in one lateral wall of lathe bed frame, the lathe bed frame One end connect clamping device.

Further include lift in height mechanism as further improvement of these options, passes through bolt at the top of the upper housing It wears and connects the first contour column and be connected and fixed plate, Z lift servo motor is installed in fixed plate, the output shaft of Z lift servo motor passes through It fastens and short screw rod upper end, short wire rod thread attaching nut is connected by plum coupling after fixed board, nut is socketed on nut seat Interior, nut seat is fixed in one facade of spindle drum, and the affixed sliding block group card in spindle drum two sides matches short straight line guide rail, short straight line guide rail pair Title is fixed in the upper housing of short screw rod two sides.

As further improvement of these options, further includes Double-cutter head cutting mechanism, connect on the seat stand of the spindle drum Connection fixed seat, connecting cover plate in fixing seat, cover board installed in front main servo motor, rear side are beaten by small contour column symmetry installation The working beam of knife cylinder, knife striking cylinder connects main shaft through cover board, and main shaft is installed on spindle drum lower end, the main shaft upper end by axle bed From synchronizing wheel, the output shaft of the main servo motor runs through cover board for socket, and end is socketed main synchronizing wheel, main synchronizing wheel and symmetrical The slave synchronizing wheel of installation is arranged synchronous belt, and the main shaft lower end connects cutter head.

As further improvement of these options, the lathe bed frame includes cross tube and sheer pole, the upper cross Bar is fixed in top between the vertical plate of lathe bed frame, and the sheer pole is fixed on the downside of the cross tube of lathe bed frame, and is located at upper cross At bar lower middle.

As further improvement of these options, the hydraulic cylinder is connected to the downside of sheer pole by ring flange, And ring flange is located above sheer pole, the ring flange top is arranged dustband.

As further improvement of these options, the fixing seat inner sleeve joint bearing, bearing is socketed on long screw end, And clamping cap is also socketed on long screw, clamping cap is fixed in the outboard end of fixing seat.

It further include clamping device as further improvement of these options, composition includes being fixed in lathe bed frame one The lathe bed plate at end, one plane of lathe bed plate connect vertical linear guide, found linear guide card and match vertical sliding block, vertical sliding block is fixed in end branch Frame, the symmetrical affixed spring one end in end bracket downside, the spring other end connect the telescopic rod of big cylinder, the master of big cylinder by disk set The affixed cushion block of body, the affixed adjustment plate of upper in-plane of the end bracket, plane two sides are separately connected the first deceleration in adjustment plate Machine and the second speed reducer, between first speed reducer and the second speed reducer by shaft coupling connect, first speed reducer it is defeated Enter to hold connecting flange one end, the flange other end connects A servo motor, Coupling Shaft is arranged in the flange, and Coupling Shaft one end connects A The output shaft of servo motor, the Coupling Shaft other end connect the input terminal axis of the first speed reducer, also lead on front side of end bracket one end Connection sheet connection pressure regulator valve is crossed, the output end of the first speed reducer and the second speed reducer passes through three jaw self-centering of chuck flanged joint Chuck.

As further improvement of these options, the short screw rod upper end and lower part pass through screw rodb base and are installed on One facade of housing, the screw rodb base inner sleeve joint bearing, bearing are socketed on short screw rod top and bottom respectively, and short screw rod upper end is under End is successively arranged locking nut and pressing plate, and is threadedly connected on the outside of screw rodb base in stomidium and presses contact bearing, and pressing plate passes through spiral shell Bolt is fixed in screw rodb base outboard end.

It is described to be set in fixing seat from synchronizing wheel and main synchronizing wheel as further improvement of these options, and It is arranged the synchronous belt in triangular shape.

As further improvement of these options, the fixing seat is box body structure, and front side setting is main same in slot Step wheel, rear side setting is symmetrically from synchronizing wheel, main synchronizing wheel and the synchronous belt for being symmetrically arranged flute profile matching from synchronizing wheel.

As further improvement of these options, high-voltage oil liquid is discharged by the liquid outlet of hydraulic station, passes through feed liquor branch pipe And inlet tube is pressed into hydraulic cylinder, hydraulic cylinder works, piston rod, which stretches out, drives pressing plate shaft to increase, the connection of pressing plate shaft upper end Pressing plate also increases, and workpiece is put into the V-groove in fixing pipe, and the oil liquid in hydraulic cylinder is by return pipe and returns liquid branch Pipe is flowed into hydraulic station, the piston rod retraction of hydraulic cylinder, and the workpiece being located in the V-groove of fixing pipe passes through pressing plate both ends Arc face pressure presss from both sides workpiece, achievees the purpose that clamp workpiece.

As further improvement of these options, roller screw rod is driven by plum coupling after the operation of Z servo motor Transmission, then drive spindle drum to carry out the movement in Z-direction in linear guide by nut seat, at the same screw both end using into Bicker contact bearing mounted in pairing mode, locking nut tense, and repetitive positioning accuracy is up to 0.005mm, and positioning accuracy is up to 0.01mm, In addition main servo motor, which is also worked at the same time, imparts power to symmetrical two main shafts by synchronous belt, to realize below main shaft Cutter head rotation, achieve the purpose that machining.

As further improvement of these options, bed piece is fixed on by lathe bed plate, workpiece is made by oneself by three-jaw The next process control servo motor rotation of heart gripper chuck is added by the retarder synchronous rotary being connected with shaft coupling to realize The machining of workpiece circumference all angles；Bottom be equipped with two groups of cylinder-spring bumpers, by pressure regulator valve can make chuck and Speed reducer structure hovering desired height, facilitates the clamping and rotation of various outer diameter, the high axis class workpiece in different centers.

The utility model have the advantage that compared with prior art it is simple with structure, design rationally, the present apparatus use liquid Multistage is pressed to clamp, positioning pipe is by keyway and is bolted to cross tube, guarantees the depth of parallelism of V-groove, workpiece is by V-groove mouth It is fixed and clamped with pressing plate, and the arcwall face at pressing plate end increases the seal face with workpiece, guarantees to compress effect, prevents from weighing wounded, work Part rotary hydraulic cylinder rises automatically under program, and replaceable facilitate of positioning pipe, pressing plate, pressing plate shaft processes different size Workpiece；X-servo motor drives upper housing and other components in linear guide to carry out in X-direction by roller screw rod transmission Movement, screw both end use import angular contact bearing mounted in pairing mode, run smoothly fluent, drawn by clamping cap locking nut Tightly, repetitive positioning accuracy is up to 0.005mm, and positioning accuracy is up to 0.01mm/1000mm；Z lift servo motor passes through roller silk Bar transmission drives the component in linear guide to carry out the movement in Z-direction, realizes cutter head lifting, and screw both end uses import Angular contact bearing mounted in pairing mode, locking nut tense, and repetitive positioning accuracy is up to 0.005mm, and positioning accuracy is up to 0.01mm；Knife Head servo motor can move forward and backward, and convenient for tensioning synchronous belt, avoid slipping phenomenon, which runs smoothly reliably, and leads to It is convenient and efficient to cross knife striking cylinder replacement cutter, and firm grip, can simultaneous processing, efficiency improves 10 times or more compared with plain-milling machine.

Detailed description of the invention

Fig. 1 is the structural schematic diagram of hydraulic clamping in the utility model.

Fig. 2 is side structure schematic view in Fig. 1.

Fig. 3 is the structural schematic diagram of the utility model medial bed frame X-direction power mechanism

Fig. 4 is A-A cutting structural schematic diagram in Fig. 3.

Fig. 5 is the structural schematic diagram of lift in height mechanism.

Fig. 6 is B-B cutting structural schematic diagram in Fig. 5.

Fig. 7 is the structural schematic diagram of Double-cutter head cutting mechanism.

Fig. 8 is the side structure schematic view of Fig. 7 Double-cutter head cutting mechanism.

Fig. 9 is C-C cutting structural schematic diagram in Fig. 7.

Figure 10 is the structural schematic diagram of clamping device.

Figure 11 is F-F schematic cross-sectional view in Figure 10.

Specific embodiment

The present invention will be further described with reference to the accompanying drawing.

As shown in Fig. 1-11,

A kind of double Double-cutter head milling machines for gripping long axis tubing workpiece of use with high-efficiency high-accuracy, including bed Body frame 1 connects several positioning pipes 2 on the cross tube 102 of the lathe bed frame 1 in parallel, and positioning pipe is equipped with V-groove mouth 201, Hole among the sheer pole 101 of lathe bed frame 1 is socketed hydraulic cylinder 3, and hydraulic cylinder 3 connects inlet tube 4 by feed liquor branch pipe 401 and exports End, 4 arrival end of inlet tube connect the liquid outlet of hydraulic station 6 by feed liquor branch pipe 401, and the liquid return hole of hydraulic station 6 is by returning liquid branch Pipe 501 connects 5 outlet end of liquid back pipe, and the arrival end of liquid back pipe 5 is by returning 501 connection liquid cylinder pressure 6 of liquid branch pipe, the work of hydraulic cylinder 6 Stopper rod connects 7 lower end of pressing plate shaft, and the upper end connects pressing plate 8；The affixed long linear guide 901 in the two sides top surface of the lathe bed frame 1, Symmetrically card matches two groups big sliding block 902 in long linear guide 901, and two groups big sliding block 902 is uniformly fixed in 11 bottom corner of housing, The retainer 1008 of upper 11 bottom side of housing connection Power Component 10, Power Component 10 is installed on 1 side of lathe bed frame, described Power Component 10 by retainer 1008, nut 1009, long screw 1007, fixing seat 1006, clamping cap 1011, X from synchronizing wheel 1005, the main synchronizing wheel 1002 of X, X synchronous belt 1004, electric machine support 1001, X-servo motor 1003 form, the retainer 1006 Lower opening inner sleeve connected nut 1009,1009 screw-internal thread fit of nut connect long screw 1007,1007 both ends of long screw pass through fixation Seat 1006 is installed on the inside of lathe bed frame 1 one, and 1007 one end of long screw is socketed X from synchronizing wheel 1005, and X is from synchronizing wheel 1005 connect the main synchronizing wheel 1002 of X by X synchronous belt 1004, and the main synchronizing wheel 1002 of X is socketed on the output shaft of X-servo motor 1003 On, X-servo motor 1003 is installed on electric machine support 1001, and electric machine support 1001 is fixed in 1 one lateral wall of lathe bed frame, described Lathe bed frame 1 connects clamping device 40 with respect to one end of electric machine support 1001.

Further include lift in height mechanism as further improvement of these options, passes through spiral shell at the top of the upper housing 11 Bolt, which is worn, to be connect the first contour column 15 and is connected and fixed plate 16, and Z lift servo motor 17, Z lift servo motor are installed in fixed plate 16 17 output shaft, which runs through after fixed plate 16, connects short 19 upper end of screw rod by plum coupling 18, and short screw rod 19 is threadedly engaged spiral shell Mother 26, nut 26 is socketed in nut seat 27, and nut seat 27 is fixed in 28 1 facade of spindle drum, the affixed cunning in 28 two sides of spindle drum The card of block group 25 matches short straight line guide rail 24, and short straight line guide rail 24 is symmetrically fixed in the upper housing 11 of short 19 two sides of screw rod.

It further include Double-cutter head cutting mechanism as further improvement of these options, on the seat stand of the spindle drum 28 It is connected and fixed seat 29, connecting cover plate 30 in fixing seat 29,30 installed in front main servo motor 31 of cover board, rear side passes through small contour Column 32 is symmetrically installed knife striking cylinder 33, and the working beam of knife striking cylinder 33 connects main shaft 38 through cover board 30, and main shaft 38 is pacified by axle bed 37 Loaded on 28 lower end of spindle drum, 38 upper end of the main shaft socket is from synchronizing wheel 35, and the output shaft of the main servo motor 31 is through lid Plate 30, end are socketed main synchronizing wheel 34, and main synchronizing wheel 34 is arranged synchronous belt 36, the master with the slave synchronizing wheel 35 being symmetrically installed 38 lower end of axis connects cutter head 39.

As further improvement of these options, the lathe bed frame 1 includes cross tube 102 and sheer pole 101, institute It states cross tube 102 and is fixed in top between the vertical plate of lathe bed frame 1, the sheer pole 101 is fixed in the cross tube of lathe bed frame 1 102 downsides, and be located at 102 lower middle of cross tube.

As further improvement of these options, the hydraulic cylinder 3 is connected to sheer pole 101 by ring flange 302 Downside, and ring flange 302 is located at the top of sheer pole 101, and 302 top of ring flange is arranged dustband 301.

As further improvement of these options, the 1006 inner sleeve joint bearing 1010 of fixing seat, 1010 sets of bearing It is connected to 1007 end of long screw, and is also socketed clamping cap 1011 on long screw 1007, clamping cap 1011 is fixed in fixing seat 1006 Outboard end.

It further include clamping device 40 as further improvement of these options, composition includes being fixed in lathe bed frame 1 The lathe bed plate 4001 of one end, 4,001 1 plane of lathe bed plate connect vertical linear guide 4002, found the card of linear guide 4002 with vertical sliding block 4003, vertical sliding block 4003 is fixed in end bracket 4004, holds 4004 downside both ends of bracket symmetrically affixed 4015 one end of spring, spring Telescopic rod of 4015 other ends by the 4016 big cylinder 4017 of connection of disk set, the affixed cushion block 4018 of the main body of big cylinder 4017, institute The affixed adjustment plate 4005 of upper in-plane of end bracket 4004 is stated, plane two sides are separately connected the first speed reducer in adjustment plate 4005 4006 and second speed reducer 4007, it is connected between first speed reducer 4006 and the second speed reducer 4007 by shaft coupling 4008, 4009 one end of input terminal connecting flange of first speed reducer 4006,4009 other end of flange connect A servo motor 4010, institute It states and Coupling Shaft 4011 is set in flange 4009,4011 one end of Coupling Shaft connects the output shaft of A servo motor 4010, Coupling Shaft 4011 The other end connects the input terminal axis of the first speed reducer 4006, also connects pressure regulation by connection sheet on front side of described 4004 one end of end bracket The output end of valve 4012, the first speed reducer 4006 and the second speed reducer 4007 passes through chuck flange 4013 and connects three jaw self-centerings Chuck 4014.

As further improvement of these options, 19 upper end of short screw rod and lower part pass through screw rodb base 20 and install In upper 11 1 facade of housing, the 20 inner sleeve joint bearing 21 of screw rodb base, bearing 21 is socketed on short 19 top and bottom of screw rod respectively, Short 19 top and bottom of screw rod are successively arranged locking nut 22 and pressing plate 23, and are threadedly connected in 20 outside stomidium of screw rodb base And contact bearing is pressed, pressing plate 23 is fixed in 20 outboard end of screw rodb base by bolt.

It is described to be set to fixing seat 29 from synchronizing wheel 35 and main synchronizing wheel 34 as further improvement of these options It is interior, and it is arranged the synchronous belt 36 in triangular shape.

As further improvement of these options, the fixing seat 29 is box body structure, setting master in front side in slot Synchronizing wheel 34, rear side setting main synchronizing wheel 34 and are symmetrically arranged what flute profile matched symmetrically from synchronizing wheel 35 from synchronizing wheel 35 Synchronous belt 36.

As further improvement of these options, the flat fast output end of first speed reducer 4006 connects shaft coupling 4008 one end, 4008 other end of shaft coupling connect the input terminal of the second speed reducer 4007.

As further improvement of these options, the 4010 model LB-130ST-M10015L of A servo motor.

As further improvement of these options, the model of first speed reducer 4006 and the second speed reducer 4007 It is NMRV63-40.

As further improvement of these options, the model LB-150ST- of the X-servo motor 1003 M18020L。

As further improvement of these options, the 17 model LB-130ST- of Z lift servo motor M10015L, and have brake function.

As further improvement of these options, the main servo motor 31 is spindle servo electric machine, model CTB-47P5ZGB15-80H5JB。

The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this Made any modifications, equivalent replacements, and improvements etc., should be included in the utility model within the spirit and principle of utility model Protection scope within.

Claims

1. a kind of double Double-cutter head milling machines for gripping long axis tubing workpiece of use with high-efficiency high-accuracy, including lathe bed Frame, which is characterized in that connect several positioning pipes on the cross tube of the lathe bed frame in parallel, the hole socket among sheer pole Hydraulic cylinder, hydraulic cylinder connect outlet of inlet pipe by feed liquor branch pipe, and inlet tube arrival end connects hydraulic station by feed liquor branch pipe Liquid outlet, the liquid return hole of hydraulic station connects liquid back pipe outlet end by returning liquid branch pipe, and the arrival end of liquid back pipe, which passes through, returns liquid branch Pipe connection liquid cylinder pressure, the piston rod of hydraulic cylinder connect pressing plate shaft lower end, and the upper end connects pressing plate；It pushes up the two sides of the lathe bed frame The affixed long linear guide in face, symmetrically card matches two groups of big sliding blocks in long linear guide, and two groups of big sliding blocks are uniformly fixed in housing bottom Portion corner, the retainer of upper housing bottom side connection Power Component, Power Component are installed on lathe bed frame side, and described is dynamic Power component is by retainer, nut, long screw, fixing seat, clamping cap, X from synchronizing wheel, the main synchronizing wheel of X, X synchronous belt, motor branch Frame, X-servo motor form, the lower opening inner sleeve connected nut of the retainer, nut inner thread mating connection long screw, long screw two End is installed on one inside of lathe bed frame by fixing seat, and for the long screw one end socket X from synchronizing wheel, X passes through X from synchronizing wheel The synchronous main synchronizing wheel of band connection X, the main synchronizing wheel of X are socketed on the output shaft of X-servo motor, and X-servo motor is installed on motor branch On frame, electric machine support is fixed in one lateral wall of lathe bed frame, and one end of the lathe bed frame connects clamping device.

2. a kind of double Double-cutter heads for gripping long axis tubing workpiece of use as described in claim 1 with high-efficiency high-accuracy Milling machine, which is characterized in that further include lift in height mechanism, worn at the top of the upper housing by bolt and connect the first contour column simultaneously It is connected and fixed plate, Z lift servo motor is installed in fixed plate, the output shaft of Z lift servo motor passes through plum after fixed plate Flower shaft coupling connects short screw rod upper end, short wire rod thread attaching nut, and nut is socketed in nut seat, and nut seat is fixed in master One facade of axle bed, the affixed sliding block group card in spindle drum two sides match short straight line guide rail, and short straight line guide rail is symmetrically fixed in short screw rod two In the upper housing of side.

3. a kind of double Double-cutter heads for gripping long axis tubing workpiece of use as claimed in claim 2 with high-efficiency high-accuracy Milling machine, which is characterized in that further include Double-cutter head cutting mechanism, seat, fixing seat are connected and fixed on the seat stand of the spindle drum Upper connecting cover plate, cover board installed in front main servo motor, rear side install knife striking cylinder, the work of knife striking cylinder by small contour column symmetry Make bar and connect main shaft through cover board, main shaft is installed on spindle drum lower end by axle bed, and the main shaft upper end is socketed from synchronizing wheel, institute The output shaft of main servo motor is stated through cover board, end is socketed main synchronizing wheel, main synchronizing wheel and the slave synchronizing wheel being symmetrically installed It is arranged synchronous belt, the main shaft lower end connects cutter head.

4. the double Double-cutter heads for gripping long axis tubing workpiece of a kind of use with high-efficiency high-accuracy as described in claim 1 Milling machine, which is characterized in that the lathe bed frame includes cross tube and sheer pole, and the cross tube is fixed in lathe bed frame Vertical plate between top, the sheer pole is fixed on the downside of the cross tube of lathe bed frame, and is located at cross tube lower middle.

5. the double Double-cutter heads for gripping long axis tubing workpiece of a kind of use with high-efficiency high-accuracy as described in claim 1 Milling machine, which is characterized in that the hydraulic cylinder is connected to the downside of sheer pole by ring flange, and ring flange is located at lower cross Above bar, the ring flange top is arranged dustband.

6. the double Double-cutter heads for gripping long axis tubing workpiece of a kind of use with high-efficiency high-accuracy as described in claim 1 Milling machine, which is characterized in that the fixing seat inner sleeve joint bearing, bearing is socketed on long screw end, and also covers on long screw Clamping cap is connect, clamping cap is fixed in the outboard end of fixing seat.

7. a kind of double Double-cutter heads for gripping long axis tubing workpiece of use as described in claim 1 with high-efficiency high-accuracy Milling machine, which is characterized in that further include clamping device, composition includes the lathe bed plate for being fixed in lathe bed frame one end, lathe bed One plane of plate, which connects, founds linear guide, founds linear guide card and matches vertical sliding block, vertical sliding block is fixed in end bracket, and end bracket downside is symmetrical Affixed spring one end, the spring other end connect the telescopic rod of big cylinder, the affixed cushion block of the main body of big cylinder, the end by disk set The affixed adjustment plate of upper in-plane of bracket, plane two sides are separately connected the first speed reducer and the second speed reducer, institute in adjustment plate It states and is connected between the first speed reducer and the second speed reducer by shaft coupling, input terminal connecting flange one end of first speed reducer, The flange other end connects A servo motor, and Coupling Shaft is arranged in the flange, and Coupling Shaft one end connects the output shaft of A servo motor, The Coupling Shaft other end connects the input terminal axis of the first speed reducer, also connects pressure regulation by connection sheet on front side of end bracket one end The output end of valve, the first speed reducer and the second speed reducer passes through chuck flanged joint three-jaw self-centering chuck.

8. the double Double-cutter heads for gripping long axis tubing workpiece of a kind of use with high-efficiency high-accuracy as claimed in claim 3 Milling machine, which is characterized in that the short screw rod upper end and lower part pass through screw rodb base and be installed on one facade of housing, described Screw rodb base inner sleeve joint bearing, bearing are socketed on short screw rod top and bottom respectively, and short screw rod top and bottom are successively arranged lock Tight nut and pressing plate, and be threadedly connected on the outside of screw rodb base in stomidium and press contact bearing, pressing plate is fixed in screw rodb base by bolt Outboard end.

9. the double Double-cutter heads for gripping long axis tubing workpiece of a kind of use with high-efficiency high-accuracy as claimed in claim 3 Milling machine, which is characterized in that it is described to be set in fixing seat from synchronizing wheel and main synchronizing wheel, and be arranged in the same of triangular shape Walk band.

10. the double double-poles for gripping long axis tubing workpiece of a kind of use with high-efficiency high-accuracy as claimed in claim 3 Head milling machine, which is characterized in that the fixing seat is box body structure, and main synchronizing wheel is arranged in front side in slot, and rear side is set It sets symmetrically from synchronizing wheel, main synchronizing wheel and the synchronous belt for being symmetrically arranged flute profile matching from synchronizing wheel.