CN109807572A - A kind of precision machining method for processing axial flow pump blade inner tooling combination and axial flow pump blade inner - Google Patents
A kind of precision machining method for processing axial flow pump blade inner tooling combination and axial flow pump blade inner Download PDFInfo
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- CN109807572A CN109807572A CN201910212812.5A CN201910212812A CN109807572A CN 109807572 A CN109807572 A CN 109807572A CN 201910212812 A CN201910212812 A CN 201910212812A CN 109807572 A CN109807572 A CN 109807572A
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Abstract
A kind of precision machining method for processing axial flow pump blade inner tooling combination and axial flow pump blade inner, belong to technical field of mechanical processing, tooling combination is by rough milling tooling, oscillating aging tooling, grinding fixture, half finish-milling tooling, combined pneumatic sucker tool and shot blasting nozzle tooling collectively constitute, roughing-timeliness-semifinishing-wire cutting cutting profile-timeliness-finishing-high-speed shot blasting surface peening manufacturing procedure is completed using tooling combination, tooling combination is novel, tooling is easy to operate, precision machining method is reasonable, improve processing efficiency and machining accuracy, improve the corrosion resistance and fatigue strength of blade, reduce the deformation defect in use process, further improve the service life of pump blade.
Description
Technical field
The invention belongs to technical field of mechanical processing, be related to a kind of axial-flow pump components processing tool and components plus
Work method particularly relates to a kind of precision machining method for processing axial flow pump blade inner tooling combination and axial flow pump blade inner.
Background technique
In hydraulic engineering, axial-flow pump is different from other water pumps, is mainly placed in water axial-flow pump, utilizes blade high speed
Thrust water lift, axial flow pump blade inner used at present caused by rotating have following defects that
(1) machining accuracy is not high, and deformable blade is larger, and mainly the location error of parts fixation initiation, parts fixation cause
The deformation that part deformation, material stress release cause, it is therefore seen that, the clamping of blade seems quite important in blade processing, passes
The installation way of system has been unable to meet the high-precision requirement of blade processing, meanwhile, in due course timeliness is also outstanding in some processing links
To be important, traditional aging regime is not only not environmentally but also efficient.
(2) corrosion resistance of blade and fatigue strength are insufficient, and main cause is the shortcoming to blade surface processing capacity,
Supposedly, bead blasted surfaces processing technique can improve fatigue behaviour, Corrosion Fatigue Properties and the stress corrosion resistant of engineering goods
Performance improves the porosity of metal material surface, but this technology uses level more extensive at present, and it is high not to be able to satisfy blade
It is required that.
Summary of the invention
The purpose of the present invention is in view of the above-mentioned deficiencies in the prior art, propose a kind of processing axial flow pump blade inner recruitment
The precision machining method of dress combination and axial flow pump blade inner promotes the corrosion resistance of blade to improve processing efficiency and machining accuracy
Energy and fatigue strength reduce the deformation defect in use process, further increase the service life of pump blade.
The technical scheme is that a kind of processing axial flow pump blade inner tooling combination, it is characterised in that: the axial-flow pump
Blade processing tooling by rough mill tooling, oscillating aging tooling, grinding fixture, half finish-milling tooling, combined pneumatic sucker tool and
Shot blasting nozzle tooling composition；
The tooling of rough milling is constituted by rough milling bottom plate, rough milling workpiece and rough milling pressing plate, and the bottom plate of rough milling is fixed at numerical control
On the workbench of lathe, described rough mill is set on bottom plate there are two rough milling bottom plate dowel hole, it is described rough mill set on workpiece there are two
Rough mill workpiece dowel hole, it is described to rough mill workpiece and be fixed on described rough mill on bottom plate by rough milling pressing plate；
The novel vibration aging tooling includes oscillating aging bottom plate, what the oscillating aging bottom plate was parallel to each other equipped with two
Dovetail column, the oscillating aging bottom plate between two dovetail columns are equipped with motor, and the motor passes through motor fixing hole
It is connected and fixed with bolt and oscillating aging bottom plate, cam is connected in the rotor output of the motor, two dovetails are vertical
It is connected with dovetail slide block on column, support frame is fixed with below two dovetail slide blocks, is connected on support frame as described above
Support shaft, the support shaft is equipped with idler wheel, spring is connected between support frame as described above bottom end and oscillating aging bottom plate, described
Cam and idler wheel are kept in contact by the pulling force that spring generates, and the dovetail slide block is equipped with gripper jaw, are set on the gripper jaw
There is fastening bolt, timeliness workpiece is clamped in gripper jaw by fastening bolt；
The grinding fixture is made of corase grinding bottom plate and corase grinding workpiece, and the corase grinding bottom plate is adsorbed on the workbench of surface grinding machine
On, the corase grinding bottom plate is equipped with corase grinding the first dowel hole of bottom plate and corase grinding the second dowel hole of bottom plate, the corase grinding workpiece
It is equipped with corase grinding the first dowel hole of workpiece and corase grinding the second dowel hole of workpiece, corase grinding bottom plate lies in the work of surface grinding machine
It is on platform, the corase grinding workpiece processed is fixed by corase grinding the second dowel hole of workpiece and corase grinding the second dowel hole of bottom plate direct selling
Position installation；
The half finish-milling tooling is made of half finish-milling bottom plate and half finish-milling workpiece, and the half finish-milling bottom plate is fixed on numerically-controlled machine tool
On, it is set on the half finish-milling bottom plate there are two half the first dowel hole of finish-milling bottom plate and half the second dowel hole of finish-milling bottom plate, institute
State half the first dowel hole of finish-milling workpiece and half the second dowel hole of finish-milling workpiece there are two setting on half finish-milling workpiece, half essence
Milling bottom plate is fixed on numerically-controlled machine tool, and the half finish-milling workpiece is passed through half the second dowel hole of finish-milling workpiece and half finish-milling bottom plate
Second dowel hole, which is sold directly to households, to be positioned and installs, and the half finish-milling workpiece is fixed with half finish-milling pressing plate；
The combined pneumatic sucker tool is made of finishing sucker and finishing bottom plate, and the finishing sucker front is equipped with
Front curved surface sucker suction inlet, the finishing sucking disc back side are equipped with reverse side curved surface sucker suction inlet, the front curved surface sucker suction inlet
Several suckers being connected are laid between reverse side curved surface sucker suction inlet, four edges of the finishing sucker are equipped with
Sucker bolt through-hole, the both ends middle position of the finishing sucker are equipped with sucker dowel hole, the finishing bottom plate front
Equipped with air cavity, seal groove is equipped on the outside of the air cavity, four edges of the finishing bottom plate are equipped with bed bolt via hole, described
It finishes bottom plate both ends middle position and is equipped with bottom plate dowel hole, the finishing sucker and finishing bottom plate are positioned by sucker
Pin hole and bottom plate dowel hole are positioned, and are attached by bolt through-hole, and the finishing bottom panel side is equipped with screw thread
Pipe, the screwed pipe are equipped with air valve, connect and communicate inside the screwed pipe and air cavity；
The shot blasting nozzle tooling, which is connected by connector sleeve with nozzle body, to be formed；The top of the connector sleeve is equipped with connecting rod, institute
The end face for stating connector sleeve is equipped with bolt through-hole, and the outer round surface of the connector sleeve is equipped with connector sleeve seal groove, the nozzle
The upper surface of main body is equipped with connection screw thread hole, and the inside of the nozzle body is equipped with nozzle chamber, the bottom of the nozzle body
Portion is equipped with ball mouth, and the ball mouth out is connect with nozzle chamber to be communicated, and the inner wall of the ball mouth out is equipped with rifling, the spray
The outer wall of mouth main body is equipped with air inlet and into ball mouth, and the air inlet and being connect into ball mouth with the nozzle chamber communicates,
The connector sleeve is connected to the top of nozzle body by bolt seal.
The dovetail column is weldingly fixed on oscillating aging bottom plate, and two dovetail columns are parallel and wait high settings, support frame
It is weldingly fixed on the lower section of dovetail slide block.
The quantity of the spring is 4, and spring is uniformly arranged between support frame bottom end and oscillating aging bottom plate.
The gripper jaw is in that concave-shaped structure, gripper jaw and dovetail slide block connect by the way that the bolt in gripper jaw fixation hole is fixed
It connects, gripper jaw is equipped with top fastening bolt and bottom fastening bolt, and top fastening bolt and bottom fastening bolt are coaxially disposed.
The sucker dowel hole is corresponding with bottom plate dowel hole positional relationship, and sucker dowel hole is through-hole, bottom plate
Dowel hole is blind hole.
The suction inlet of the front curved surface sucker suction inlet and reverse side curved surface sucker suction inlet is rectangle suction inlet, and the two size phase
Together, the bottom surface of front curved surface sucker suction inlet and reverse side curved surface sucker suction inlet is plane surface.
The sucker is cylindrical hole, and sucker is arranged with 20 × 11 rectangular array in front curved surface sucker suction inlet and reverse side
Between curved surface sucker suction inlet.
The opening area of the air cavity is greater than the opening area of front curved surface sucker suction inlet and reverse side curved surface sucker suction inlet.
The air inlet and tilting into ball mouth is arranged upward, and air inlet is parallel to each other with into ball mouth.
The nozzle chamber is that cylindrical body combines the cavity constituted with cone, is out cylindrical structure inside ball mouth, out
The internal diameter of ball mouth is the 1/5 of nozzle chamber internal diameter, and the rifling is arranged on the inner wall of ball mouth out in 4 formulas of dextrorotation.
A kind of precision machining method of axial flow pump blade inner, the method is as follows:
(1) it utilizes and rough mills tooling, roughing blade tow sides:
Bottom plate 1 is fixed on numerically controlled machine by (1-1), is rough milled bottom plate dowel hole centering to two, is made two dowel holes
The line of centres it is parallel with the X-direction of numerically-controlled machine tool, rough mill workpiece by rough milling workpiece dowel hole and thick for what is processed
Milling bottom plate dowel hole, which is sold directly to households, to be positioned and installs, and is fixed it with pressing plate is rough milled, and centering rough mills the pin hole on the left side on workpiece, will
Its center is set as the origin of Cutter coordinate system, and centering rough mills the upper plane of workpiece, and the upper plane for rough milling workpiece is arranged
For the Z axis origin of Cutter coordinate system；
The nc program that (1-2) goes out according to CAM software translating, using the Cutter coordinate system set, first roughing blade
Front, remove workpiece after the completion, face is adjusted in deburring, still by the dowel hole and bottom plate accomplished fluently in advance on workpiece blank
The dowel hole accomplished fluently in advance, which is sold directly to households, to be positioned and installs, and according to the nc program that CAM software translating goes out, uses what is set
Cutter coordinate system, the reverse side of roughing blade；Specific cooked mode and parameter: roughing blade uses chamfer machining mode, digs
Slot cooked mode is suitable for big surplus processing and all round closure, and programmed algorithm is simple, high in machining efficiency, cutting step 2mm, processing
Surplus stays 2mm, and 14 cotter mill cutter of cutter, 1000 revs/min of the speed of mainshaft, feeding speed 100mm/ divides；
(2) oscillating aging tooling is utilized, inner stress of work is eliminated:
Cam is kept in contact with the idler wheel on support frame by the pulling force that the elasticity of spring generates, the both ends of workpiece are by gripper jaw
Fixed, when the motor rotates, band moving cam rotates, while idler wheel being driven to pump, and workpiece is made up and down reciprocatingly therewith
Movement realizes the vibration to workpiece different frequency, to effectively eliminate the internal stress of workpiece by the control to motor speed；
(3) grinding fixture is utilized, the blank after roughing is ground:
Corase grinding bottom plate is lain on the workbench of surface grinding machine, the corase grinding workpiece processed is positioned by roughly grinding workpiece second
Pin hole sells directly to households with corase grinding the second dowel hole of bottom plate and positions and install, and opens the magnechuck of surface grinding machine, will roughly grind bottom plate
With corase grinding workpiece suck, plane in grinding after upper plane is light-exposed, removes workpiece and bottom plate, after deburring by workpiece it is light-exposed after
Big face is directly placed on the workbench of grinding machine, is opened magnechuck and is sucked workpiece, is ground the reverse side of workpiece, removes after light-exposed；
(4) half finish-milling tooling is utilized, semifinishing is carried out to blade tow sides:
Half finish-milling bottom plate is fixed on numerically-controlled machine tool by (4-1), to two dowel hole centerings, makes the line of centres of two dowel holes
It is parallel with the X-direction of numerically-controlled machine tool, the half finish-milling workpiece processed is passed through into half the second dowel hole of finish-milling workpiece and half essence
Milling the second dowel hole of bottom plate, which is sold directly to households, to be positioned and installs, and is fixed it with pressing plate, centering half finish-milling workpiece, second group of positioning pin
The pin hole on the hole left side sets its center to the origin of Cutter coordinate system, the upper plane of centering workpiece blank, by workpiece base
The upper plane of material is set as the Z axis origin of Cutter coordinate system；
When (4-2) is processed, according to the nc program that CAM software translating goes out, using the Cutter coordinate system set, first half essence
Workpiece is removed in the front for processing blade after the completion, and face is adjusted in deburring, and half finish-milling workpiece is positioned by half finish-milling workpiece second
Pin hole and half the second dowel hole of finish-milling bottom plate, which are sold directly to households, to be positioned and installs, and is fixed it with pressing plate, is gone out according to CAM software translating
Nc program, use the Cutter coordinate system set, the reverse side of semifinishing blade；Specific cooked mode and parameter:
Semifinishing blade uses contour shape mode, and contour shape mode, which belongs to, pecks a layer processing method, and program statement is short, and processing is accurate,
Sometimes it is also used for finishing, cutting step 0.3mm, machining allowance stays 0.3mm, 12 cotter mill cutter of cutter, the speed of mainshaft 1200
Rev/min, feeding speed 200mm/ points；
(5) wire cutting machine tool cut-off blade surrounding profile is utilized:
Workpiece is placed on the bracket of wire electrode cutting bench, to two dowel hole centerings, makes the center of two dowel holes
Line is parallel with the X-direction of wire cutting machine tool, is fixed it with pressing plate, the pin hole on the left side on half finish-milling workpiece of centering, by it
Center is set as the origin of Cutter coordinate system；According to the nc program that CAM software translating goes out, added using what is set
Work coordinate system is cut into blade surrounding profile；
(6) oscillating aging tooling is utilized, timeliness is carried out to the semifinishing blade after wire cutting:
Cam is kept in contact with the idler wheel on support frame by the pulling force that the elasticity of spring generates, the both ends of workpiece are by gripper jaw
Fixed, when the motor rotates, band moving cam rotates, while idler wheel being driven to pump, and workpiece is made up and down reciprocatingly therewith
Movement realizes the vibration to workpiece different frequency, to effectively eliminate the internal stress of workpiece by the control to motor speed；
(7) combined pneumatic sucker tool is utilized, the tow sides of blade are finished:
It is inserted into positioning pin in bottom plate dowel hole, is packed into sealing ring in seal groove, sucker dowel hole is inserted on positioning pin,
Bolt is screwed in by sucker bolt through-hole to fix, air valve is connected to the screwed pipe of connection air valve, and one of valve port while connects vacuum
Pump machine opens the air valve of connection vacuum pump when vacuum pump work, closes another air valve, it can be achieved that suction to blade part
It is attached, the air valve of connection vacuum pump is closed, opens an air valve, it can be achieved that part is removed, finishing sucker can be respectively with difference
Sucker suction inlet face and finishing bottom plate installation, realize the processing of the front and back sides of blade；
(8) shot blasting nozzle tooling is utilized, the tow sides of blade are finished:
When connector sleeve is connect with nozzle body, pass through the threaded hole bolt on bolt through-hole and nozzle body with counterbore
Fastening, loads onto sealing ring by the connector sleeve seal groove on connector sleeve to seal nozzle chamber, pressure-air by air inlet into
Enter nozzle chamber to spray from ball mouth out again, sucks shot forming negative pressure into ball mouth, then by shot from ball mouth high speed ejection out, out
Rifling on ball nozzle aperture wall can guarantee the high-precision of shot-peening, and the connecting rod on connector sleeve is installed to numerical control device, can be right
The path locus of shot-peening realizes NC postprocessing, is specially adapted to the metal works of complex contour, is particularly adapted to propeller and blade
Etc important workpiece, the workpiece after removing bead, the state of workpiece at this time are as follows: the anti-fatigue performance of blade, corrosion are tired
Labor performance and anti-stress corrosion performance greatly improve, and effectively improve the comprehensive performance and service life of blade.
The invention has the benefit that a kind of processing axial flow pump blade inner tooling combination provided by the invention, by rough milling work
Dress, oscillating aging tooling, grinding fixture, half finish-milling tooling, combined pneumatic sucker tool and shot blasting nozzle tooling collectively constitute,
Roughing-timeliness-semifinishing-wire cutting cutting profile-timeliness-finishing-high-speed shot blasting surface is completed using tooling combination
Strengthen manufacturing procedure, tooling combination is novel, and tooling is easy to operate, and precision machining method is reasonable, improves processing efficiency and processing
Precision improves the corrosion resistance and fatigue strength of blade, reduces the deformation defect in use process, further improve
The service life of pump blade.
Detailed description of the invention
Fig. 1 is to rough mill tool structure schematic diagram in the present invention.
Fig. 2 is to rough mill tooling complete section structural schematic diagram in the present invention.
Fig. 3 is oscillating aging tool structure schematic diagram in the present invention.
Fig. 4 is oscillating aging tooling overlooking structure diagram in the present invention.
Fig. 5 is grinding fixture structural schematic diagram in the present invention.
Fig. 6 is grinding fixture complete section structural schematic diagram in the present invention.
Fig. 7 is half finish-milling tool structure schematic diagram in the present invention.
Fig. 8 is half finish-milling tooling complete section structural schematic diagram in the present invention.
Fig. 9 is combined pneumatic sucker tool structural schematic diagram in the present invention.
Figure 10 is combined pneumatic sucker tool overlooking structure diagram in the present invention.
Figure 11 is combined pneumatic sucker tool structural diagram of base plate in the present invention.
Figure 12 is shot blasting nozzle tool structure schematic diagram in the present invention.
In figure: rough milling bottom plate 1, rough mill workpiece 2, rough mill workpiece dowel hole 3, rough mill bottom plate dowel hole 4, machining area
5, rough mill pressing plate 6, oscillating aging bottom plate 7, dovetail column 8, dovetail slide block 9, support frame 10, idler wheel 11, motor 12, cam 13,
Spring 14, fastening bolt 16, timeliness workpiece 17, support shaft 18, gripper jaw fixation hole 19, motor fixing hole 20, turns gripper jaw 15
Son 21, corase grinding bottom plate 22, corase grinding workpiece 23, corase grinding the first dowel hole of workpiece 24, corase grinding the first dowel hole of bottom plate 25, corase grinding
The second dowel hole of workpiece 26, corase grinding bottom plate the second dowel hole 27, half finish-milling bottom plate 28, half finish-milling workpiece 29, half finish-milling work
Part the first dowel hole 30, half finish-milling bottom plate the first dowel hole 31, half finish-milling machining area 32, half finish-milling pressing plate 33, half essence
Milling workpiece the second dowel hole 34, half the second dowel hole of finish-milling bottom plate 35, finishing sucker 36, finishing bottom plate 37, front
Curved surface sucker suction inlet 38, sucker 39, sucker dowel hole 40, reverse side curved surface sucker suction inlet 41, seal groove 42, bottom plate dowel hole
43, air cavity 44, sucker bolt through-hole 45, bed bolt via hole 46, air valve 47, screwed pipe 48, connector sleeve 49, connecting rod 50, spiral shell
Bolt via hole 51, connector sleeve seal groove 52, nozzle body 53, connection screw thread hole 54, air inlet 55, into ball mouth 56, nozzle chamber 57,
Ball mouth 58, rifling 59 out.
Specific embodiment
The present invention will be further explained below with reference to the attached drawings:
As shown in figs. 1-12, a kind of processing axial flow pump blade inner tooling combination, axial flow pump blade inner processing tool are combined by rough milling work
Dress, oscillating aging tooling, grinding fixture, half finish-milling tooling, combined pneumatic sucker tool and shot blasting nozzle tooling composition.
As shown in Figs. 1-2, a kind of processing axial flow pump blade inner tooling combination rough mills tooling by rough milling bottom plate 1, rough milling workpiece
2 are constituted with pressing plate 6 is rough milled, and are rough milled bottom plate 1 and are fixed on the workbench of numerically-controlled machine tool, are rough milled thick there are two setting on bottom plate 1
Bottom plate dowel hole 4 is milled, rough mills and is set on workpiece 2 there are two workpiece dowel hole 3 is rough milled, it is solid by rough milling pressing plate 6 to rough mill workpiece 2
It is scheduled on and rough mills on bottom plate 1.
As shown in Figure 3-4, a kind of processing axial flow pump blade inner tooling combination, novel vibration aging tooling includes oscillating aging
Bottom plate 7, oscillating aging bottom plate 7 are equipped with two dovetail columns 8 being parallel to each other, the oscillating aging between two dovetail columns 8
Bottom plate 7 is equipped with motor 12, and motor 12 is connected and fixed by motor fixing hole 20 and bolt with oscillating aging bottom plate 7, motor 12
The output of rotor 21 on be connected with cam 13, dovetail slide block 9 is connected on two dovetail columns 8, under two dovetail slide blocks 9
Side is fixed with support frame 10, and support shaft 18 is connected on support frame 10, and support shaft 18 is equipped with idler wheel 11,10 bottom of support frame
Spring 14 is connected between end and oscillating aging bottom plate 7, the pulling force holding that cam 13 is generated with idler wheel 11 by spring 14 connects
Touching, dovetail slide block 9 are equipped with gripper jaw 15, and gripper jaw 15 is equipped with fastening bolt 16, and timeliness workpiece 17 passes through fastening bolt 16
It is clamped in gripper jaw 15.
As seen in figs. 5-6, a kind of processing axial flow pump blade inner tooling combination, grinding fixture is by corase grinding bottom plate 22 and corase grinding work
Part 23 is constituted, and corase grinding bottom plate 22 is adsorbed on the workbench of surface grinding machine, and corase grinding bottom plate 22 is equipped with corase grinding bottom plate first and positions
Pin hole 25 and corase grinding the second dowel hole of bottom plate 27, corase grinding workpiece 23 are equipped with corase grinding the first dowel hole of workpiece 24 and corase grinding work
The second dowel hole of part 26, corase grinding bottom plate 22 lie on the workbench of surface grinding machine, the corase grinding workpiece 23 processed are passed through
Roughly grind the second dowel hole of workpiece 26 and corase grinding the second dowel hole of bottom plate 27 direct selling location and installation.
As Figure 7-8, a kind of processing axial flow pump blade inner tooling combination, half finish-milling tooling is by half finish-milling bottom plate 28 and half
Finish-milling workpiece 29 is constituted, and half finish-milling bottom plate 28 is fixed on numerically-controlled machine tool, sets that there are two half finish-milling bottom plates on half finish-milling bottom plate 28
First dowel hole 31 and half the second dowel hole of finish-milling bottom plate 35, set that there are two half finish-milling workpiece first on half finish-milling workpiece 29
Dowel hole 30 and half the second dowel hole of finish-milling workpiece 34, half finish-milling bottom plate 28 are fixed on numerically-controlled machine tool, by half finish-milling work
Part 29 is positioned and is installed with selling directly to households by half finish-milling workpiece the second dowel hole 34 and half the second dowel hole of finish-milling bottom plate 35, and half
Finish-milling workpiece 29 is fixed with half finish-milling pressing plate 33.
As shown in figs. 9-11, a kind of processing axial flow pump blade inner tooling combination, combined pneumatic sucker tool is by finishing
Sucker 36 and finishing bottom plate 37 form, and 36 front of finishing sucker is equipped with front curved surface sucker suction inlet 38, finish sucker 36
The back side is equipped with reverse side curved surface sucker suction inlet 41, is laid between front curved surface sucker suction inlet 38 and reverse side curved surface sucker suction inlet 41
Several suckers 39 being connected, four edges of finishing sucker 36 are equipped with sucker bolt through-hole 45, finishing sucker 36
Both ends middle position is equipped with sucker dowel hole 40, and 37 front of finishing bottom plate is equipped with air cavity 44, is equipped with sealing on the outside of air cavity 44
Slot 42, four edges of finishing bottom plate 37 are equipped with bed bolt via hole 46, and finishing 37 both ends middle position of bottom plate is equipped with bottom
Plate dowel hole 43, finishing sucker 36 and finishing bottom plate 37 are carried out by sucker dowel hole 40 and bottom plate dowel hole 43
Positioning, and be attached by bolt through-hole, finishing 37 side of bottom plate is equipped with screwed pipe 48, and screwed pipe 48 is equipped with air valve
47, it connects inside screwed pipe 48 and air cavity 44 and communicates.
As shown in figure 12, a kind of processing axial flow pump blade inner tooling combination, shot blasting nozzle tooling is by connector sleeve 49 and nozzle
The connection composition of main body 53；The top of connector sleeve 49 is equipped with connecting rod 50, and the end face of connector sleeve 49 is equipped with bolt through-hole 51, connection
The outer round surface of set 49 is equipped with connector sleeve seal groove 52, and the upper surface of nozzle body 53 is equipped with connection screw thread hole 54, nozzle
The inside of main body 53 is equipped with nozzle chamber 57, and the bottom of nozzle body 53 is equipped with ball mouth 58, out ball mouth 58 and nozzle chamber 57
Connection communicates, and the inner wall of ball mouth 58 is equipped with rifling 59 out, and the outer wall of nozzle body 53 is equipped with air inlet 55 and into ball mouth
56, air inlet 55 and being connect into ball mouth 56 with the nozzle chamber 57 communicates, and the connector sleeve 49 passes through bolt seal and connects
In the top of nozzle body 53.
As shown in figs. 1-12, a kind of processing axial flow pump blade inner tooling combination, dovetail column 8 are weldingly fixed on oscillating aging
On bottom plate 7, two dovetail columns 8 are parallel and wait high settings, and support frame 10 is weldingly fixed on the lower section of dovetail slide block 9；Spring 14
Quantity is 4, and spring 14 is uniformly arranged between 10 bottom end of support frame and oscillating aging bottom plate 7；Gripper jaw 15 is in concave shape knot
Structure, gripper jaw 15 are fixedly connected with dovetail slide block 9 by the bolt in gripper jaw fixation hole 19, and it is tight that gripper jaw 15 is equipped with top
Fixing bolt and bottom fastening bolt, top fastening bolt and bottom fastening bolt are coaxially disposed；Sucker dowel hole 40 and bottom plate
43 positional relationship of dowel hole is corresponding, and sucker dowel hole 40 is through-hole, and bottom plate dowel hole 43 is blind hole；Front curved surface is inhaled
The suction inlet of disk suction inlet 38 and reverse side curved surface sucker suction inlet 41 is rectangle suction inlet, and the two size is identical, and front curved surface sucker is inhaled
The bottom surface of mouth 38 and reverse side curved surface sucker suction inlet 41 is plane surface；Sucker 39 is cylindrical hole, and sucker 39 is with 20 × 11 square
Shape array is arranged between front curved surface sucker suction inlet 38 and reverse side curved surface sucker suction inlet 41；The opening area of air cavity 44 is greater than just
The opening area of face curved surface sucker suction inlet 38 and reverse side curved surface sucker suction inlet 41；Air inlet 55 and tilting into ball mouth 56 is set upward
It sets, air inlet 55 is parallel to each other with into ball mouth 56；Nozzle chamber 57 is that cylindrical body combines the cavity constituted with cone, out ball mouth
58 inside are cylindrical structure, and the internal diameter of ball mouth 58 is the 1/5 of 57 internal diameter of nozzle chamber out, and the rifling 59 is in dextrorotation 4
Formula is arranged on the inner wall of ball mouth out.
As shown in figs. 1-12, precision machined side is carried out to axial flow pump blade inner with tooling combination using processing axial flow pump blade inner
Method, the method is as follows:
(1) it utilizes and rough mills tooling, roughing blade tow sides:
Bottom plate 1 is fixed on numerically controlled machine by (1-1), is rough milled 4 centering of bottom plate dowel hole to two, is made two dowel holes
The line of centres it is parallel with the X-direction of numerically-controlled machine tool, rough mill workpiece 2 by rough milling 3 He of workpiece dowel hole for what is processed
It rough mills bottom plate dowel hole to sell positioning directly to households and install, be fixed it with pressing plate 6 is rough milled, centering rough mills the pin on the left side on workpiece 2
Hole sets its center to the origin of Cutter coordinate system, and centering rough mills the upper plane of workpiece 2, will rough mill the upper flat of workpiece 2
Face is set as the Z axis origin of Cutter coordinate system；
The nc program that (1-2) goes out according to CAM software translating, using the Cutter coordinate system set, first roughing blade
Front, remove workpiece after the completion, face is adjusted in deburring, still by the dowel hole 3 and bottom plate accomplished fluently in advance on workpiece blank
The dowel hole 4 accomplished fluently in advance is positioned and is installed with selling directly to households, according to the nc program that CAM software translating goes out, using setting
Cutter coordinate system, the reverse side of roughing blade；Specific cooked mode and parameter: roughing blade uses chamfer machining mode,
Chamfer machining mode is suitable for big surplus processing and all round closure, and programmed algorithm is simple, high in machining efficiency, and cutting step 2mm adds
Spare time amount stays 2mm, and 14 cotter mill cutter of cutter, 1000 revs/min of the speed of mainshaft, feeding speed 100mm/ divides.
(2) oscillating aging tooling is utilized, inner stress of work is eliminated:
Cam 13 is kept in contact with the idler wheel 11 on support frame 10 by the pulling force that the elasticity of spring 14 generates, the both ends of workpiece
It is fixed by gripper jaw 15, when motor 12 rotates, band moving cam 13 is rotated, while idler wheel 11 being driven to pump, work
Part 17 pumps therewith, by the control to 12 revolving speed of motor, realizes the vibration to 17 different frequency of workpiece, thus
Effectively eliminate the internal stress of workpiece.
(3) grinding fixture is utilized, the blank after roughing is ground:
Corase grinding bottom plate 22 is lain on the workbench of surface grinding machine, the corase grinding workpiece 23 processed is passed through into corase grinding workpiece second
Dowel hole 26 is positioned and is installed with selling directly to households with corase grinding the second dowel hole of bottom plate 27, opens the magnechuck of surface grinding machine, will
Corase grinding bottom plate 22 is sucked with corase grinding workpiece 23, and plane in grinding after upper plane is light-exposed, removes workpiece and bottom plate, will after deburring
Big face after workpiece is light-exposed is directly placed on the workbench of grinding machine, is opened magnechuck and is sucked workpiece, is ground the reverse side of workpiece,
It is removed after light-exposed.
(4) half finish-milling tooling is utilized, semifinishing is carried out to blade tow sides:
Half finish-milling bottom plate 28 is fixed on numerically-controlled machine tool by (4-1), to two dowel holes, 34 centering, makes the center of two dowel holes
Line is parallel with the X-direction of numerically-controlled machine tool, and the half finish-milling workpiece 29 processed is passed through half the second dowel hole of finish-milling workpiece
34 and half the second dowel hole of finish-milling bottom plate 35 positioned and installed with selling directly to households, it is fixed with pressing plate, half finish-milling workpiece of centering the
The pin hole on two groups of 34 left sides of dowel hole, sets its center to the origin of Cutter coordinate system, centering workpiece blank it is upper
Plane sets the upper plane of workpiece blank to the Z axis origin of Cutter coordinate system；
When (4-2) is processed, according to the nc program that CAM software translating goes out, using the Cutter coordinate system set, first half essence
Workpiece is removed in the front for processing blade after the completion, and face is adjusted in deburring, and half finish-milling workpiece 29 is determined by half finish-milling workpiece second
Position pin hole 34 and half the second dowel hole of finish-milling bottom plate 35 are positioned and are installed with selling directly to households, are fixed it with pressing plate, according to CAM software
The nc program compiled out uses the Cutter coordinate system set, the reverse side of semifinishing blade；Specific cooked mode and
Parameter: semifinishing blade uses contour shape mode, and contour shape mode, which belongs to, pecks a layer processing method, and program statement is short, processing
Precisely, it is also used for finishing sometimes, cutting step 0.3mm, machining allowance stays 0.3mm, 12 cotter mill cutter of cutter, the speed of mainshaft
1200 revs/min, feeding speed 200mm/ points.
(5) wire cutting machine tool cut-off blade surrounding profile is utilized:
Workpiece is placed on the bracket of wire electrode cutting bench, to two dowel holes, 34 centering, is made in two dowel holes
Heart line is parallel with the X-direction of wire cutting machine tool, is fixed it with pressing plate, the pin hole on the left side on half finish-milling workpiece 29 of centering,
Set its center to the origin of Cutter coordinate system；According to the nc program that CAM software translating goes out, using setting
Cutter coordinate system, be cut into blade surrounding profile.
(6) oscillating aging tooling is utilized, timeliness is carried out to the semifinishing blade after wire cutting:
Cam 13 is kept in contact with the idler wheel 11 on support frame 10 by the pulling force that the elasticity of spring 14 generates, the both ends of workpiece
It is fixed by gripper jaw 15, when motor 12 rotates, band moving cam 13 is rotated, while idler wheel 11 being driven to pump, work
Part 17 pumps therewith, by the control to 12 revolving speed of motor, realizes the vibration to 17 different frequency of workpiece, thus
Effectively eliminate the internal stress of workpiece.
(7) combined pneumatic sucker tool is utilized, the tow sides of blade are finished:
It is inserted into positioning pin in bottom plate dowel hole 43, is packed into sealing ring in seal groove 42, sucker dowel hole is inserted into positioning
On pin, bolt is screwed in by sucker bolt through-hole 45 and is fixed, air valve 47 is connected to the screwed pipe 48 of connection air valve, one of gas
Valve port connects vacuum pump machine, when vacuum pump work, opens the air valve of connection vacuum pump, closes another air valve, it can be achieved that leaf
The air valve of connection vacuum pump is closed in the absorption of piece part, opens an air valve, it can be achieved that part is removed, finishing sucker can
It is installed respectively with the face of different sucker suction inlets and finishing bottom plate 37, realizes the processing of the front and back sides of blade.
(8) shot blasting nozzle tooling is utilized, the tow sides of blade are finished:
When connector sleeve 49 is connect with nozzle body 53, pass through the screw thread on bolt through-hole 51 and nozzle body 53 with counterbore
Hole bolt fastening loads onto sealing ring by the connector sleeve seal groove 52 on connector sleeve 49 to seal nozzle chamber 57, and high pressure is empty
Gas enters nozzle chamber 57 by air inlet 55 and sprays again from ball mouth 58 out, sucks shot forming negative pressure into ball mouth 56, then will
Shot is from 58 high speed ejection of ball mouth out, and the rifling 59 on 58 hole wall of ball mouth can guarantee the high-precision of shot-peening out, by connector sleeve 49
On the installation of connecting rod 50 on numerical control device, can realize NC postprocessing to the path locus of shot-peening, be specially adapted to complex contour
Metal works, be particularly adapted to the important workpiece of propeller and blade etc, the workpiece after removing bead, workpiece at this time
State are as follows: anti-fatigue performance, Corrosion Fatigue Properties and the anti-stress corrosion performance of blade greatly improve, and effectively improve leaf
The comprehensive performance and service life of piece.
Claims (10)
1. a kind of processing axial flow pump blade inner tooling combination, it is characterised in that: the axial flow pump blade inner processing tool combination is by thick
Milling tool, oscillating aging tooling, grinding fixture, half finish-milling tooling, combined pneumatic sucker tool and shot blasting nozzle tooling composition；
The tooling of rough milling is constituted by rough milling bottom plate (1), rough milling workpiece (2) and rough milling pressing plate (6), described to rough mill bottom plate (1) admittedly
It is arranged on the workbench of numerically-controlled machine tool calmly, described rough mill is set on bottom plate (1) there are two rough milling bottom plate dowel hole (4), described
It rough mills and is set on workpiece (2) there are two rough milling workpiece dowel hole (3), it is described to rough mill workpiece (2) and be fixed on by rough milling pressing plate (6)
It is described to rough mill on bottom plate (1)；
The novel vibration aging tooling includes oscillating aging bottom plate (7), and the oscillating aging bottom plate (7) is equipped with two mutually
Parallel dovetail column (8), the oscillating aging bottom plate (7) between two dovetail columns (8) is equipped with motor (12), described
Motor (12) is connected and fixed by motor fixing hole (20) and bolt with oscillating aging bottom plate (7), the rotor of the motor (12)
(21) it is connected with cam (13), is connected with dovetail slide block (9) on two dovetail columns (8), two swallows in output
It is fixed with below tail sliding block (9) support frame (10), support shaft (18), the support is connected on support frame as described above (10)
Axis (18) is equipped with idler wheel (11), and spring (14) are connected between support frame as described above (10) bottom end and oscillating aging bottom plate (7),
The cam (13) is kept in contact with idler wheel (11) by the pulling force that spring (14) generates, and the dovetail slide block (9) is equipped with folder
It holds pawl (15), the gripper jaw (15) is equipped with fastening bolt (16), and timeliness workpiece (17) is clamped in by fastening bolt (16)
In gripper jaw (15)；
The grinding fixture is made of corase grinding bottom plate (22) and corase grinding workpiece (23), and the corase grinding bottom plate (22) is adsorbed on flat stone mill
On the workbench of bed, the corase grinding bottom plate (22) is equipped with corase grinding the first dowel hole of bottom plate (25) and corase grinding bottom plate second positions
Pin hole (27), the corase grinding workpiece (23) are equipped with corase grinding the first dowel hole of workpiece (24) and corase grinding the second dowel hole of workpiece
(26), corase grinding bottom plate (22) is lain on the workbench of surface grinding machine, and the corase grinding workpiece (23) processed is passed through corase grinding workpiece
Second dowel hole (26) and corase grinding the second dowel hole of bottom plate (27) direct selling location and installation；
The half finish-milling tooling is made of half finish-milling bottom plate (28) and half finish-milling workpiece (29), and the half finish-milling bottom plate (28) is fixed
On numerically-controlled machine tool, set on the half finish-milling bottom plate (28) there are two half the first dowel hole of finish-milling bottom plate (31) and half finish-milling bottom
The second dowel hole of plate (35), sets on the half finish-milling workpiece (29) there are two half the first dowel hole of finish-milling workpiece (30) and partly
The second dowel hole of finish-milling workpiece (34), the half finish-milling bottom plate (28) are fixed on numerically-controlled machine tool, by the half finish-milling workpiece
(29) it is positioned and is pacified with selling directly to households by half the second dowel hole of finish-milling workpiece (34) and half the second dowel hole of finish-milling bottom plate (35)
Dress, the half finish-milling workpiece (29) are fixed with half finish-milling pressing plate (33)；
The combined pneumatic sucker tool is made of finishing sucker (36) and finishing bottom plate (37), the finishing sucker
(36) front is equipped with front curved surface sucker suction inlet (38), and the finishing sucker (36) back side is equipped with reverse side curved surface sucker suction inlet
(41), it is laid with what several were connected between the front curved surface sucker suction inlet (38) and reverse side curved surface sucker suction inlet (41)
Four edges of sucker (39), finishing sucker (36) are equipped with sucker bolt through-hole (45), the finishing sucker (36)
Both ends middle position be equipped with sucker dowel hole (40), the finishing bottom plate (37) front is equipped with air cavity (44), the gas
Seal groove (42) are equipped on the outside of chamber (44), four edges of finishing bottom plate (37) are equipped with bed bolt via hole (46), institute
It states finishing bottom plate (37) both ends middle position and is equipped with bottom plate dowel hole (43), the finishing sucker (36) and finishing bottom
Plate (37) is positioned by sucker dowel hole (40) and bottom plate dowel hole (43), and is attached by bolt through-hole,
The finishing bottom plate (37) side is equipped with screwed pipe (48), and the screwed pipe (48) is equipped with air valve (47), the screwed pipe
(48) it is communicated with internal connect of air cavity (44)；
The shot blasting nozzle tooling is made of connector sleeve (49) and nozzle body (53) connection；It is set above the connector sleeve (49)
Have connecting rod (50), the end face of the connector sleeve (49) is equipped with bolt through-hole (51), the outer round surface of the connector sleeve (49)
It is equipped with connector sleeve seal groove (52), the upper surface of the nozzle body (53) is equipped with connection screw thread hole (54), the nozzle
The inside of main body (53) is equipped with nozzle chamber (57), and the bottom of the nozzle body (53) is equipped with ball mouth (58), the ball out
Mouth (58) connect with nozzle chamber (57) and communicates, and the inner wall of ball mouth (58) out is equipped with rifling (59), the nozzle master
The outer wall of body (53) be equipped with air inlet (55) and into ball mouth (56), the air inlet (55) and into ball mouth (56) with the spray
Mouth cavity (57) connection communicates, and the connector sleeve (49) is connected to the top of nozzle body (53) by bolt seal.
2. a kind of processing axial flow pump blade inner tooling combination according to claim 1, it is characterised in that: the dovetail column
(8) it is weldingly fixed on oscillating aging bottom plate (7), two dovetail columns (8) are parallel and wait high settings, and support frame (10) is welded and fixed
In the lower section of dovetail slide block (9).
3. a kind of processing axial flow pump blade inner tooling combination according to claim 1, it is characterised in that: the spring (14)
Quantity be 4, spring (14) is uniformly arranged between support frame (10) bottom end and oscillating aging bottom plate (7).
4. a kind of processing axial flow pump blade inner tooling combination according to claim 1, it is characterised in that: the gripper jaw
It (15) is in concave-shaped structure, gripper jaw (15) is fixedly connected with dovetail slide block (9) by the bolt in gripper jaw fixation hole (19),
Gripper jaw (15) is equipped with top fastening bolt and bottom fastening bolt, and top fastening bolt is coaxially set with bottom fastening bolt
It sets.
5. a kind of processing axial flow pump blade inner tooling combination according to claim 1, it is characterised in that: the front curved surface
The suction inlet of sucker suction inlet (38) and reverse side curved surface sucker suction inlet (41) is rectangle suction inlet, and the two size is identical, front curved surface
The bottom surface of sucker suction inlet (38) and reverse side curved surface sucker suction inlet (41) is plane surface.
6. a kind of processing axial flow pump blade inner tooling combination according to claim 1, it is characterised in that: the sucker (39)
For cylindrical hole, sucker (39) is arranged with 20 × 11 rectangular array in front curved surface sucker suction inlet (38) and reverse side curved surface sucker
Between suction inlet (41).
7. a kind of processing axial flow pump blade inner tooling combination according to claim 1, it is characterised in that: the air cavity (44)
Opening area be greater than front curved surface sucker suction inlet (38) and reverse side curved surface sucker suction inlet (41) opening area.
8. a kind of processing axial flow pump blade inner tooling combination according to claim 1, it is characterised in that: the air inlet
(55) it and tilts into ball mouth (56) and is arranged upward, air inlet (55) is parallel to each other with into ball mouth (56).
9. a kind of processing axial flow pump blade inner tooling combination according to claim 1, it is characterised in that: the nozzle chamber
(57) cavity constituted is combined with cone for cylindrical body, be out cylindrical structure inside ball mouth (58), ball mouth (58) is interior out
Diameter is the 1/5 of nozzle chamber (57) internal diameter, and the rifling (59) is arranged on the inner wall of ball mouth out in 4 formulas of dextrorotation.
10. a kind of precision machining method of axial flow pump blade inner, which is characterized in that add using claim 1-9 is described in any item
Work axial flow pump blade inner tooling combination, the method is as follows:
(1) it utilizes and rough mills tooling, roughing blade tow sides:
Bottom plate 1 is fixed on numerically controlled machine by (1-1), is rough milled bottom plate dowel hole (4) centering to two, is made two positioning pins
The line of centres in hole and the X-direction of numerically-controlled machine tool are parallel, rough mill workpiece (2) by rough milling workpiece dowel hole for what is processed
(3) it and rough mills bottom plate dowel hole direct selling positioning and installs, fixed it with pressing plate (6) is rough milled, centering is rough milled on workpiece (2)
The pin hole on the left side, sets its center to the origin of Cutter coordinate system, and centering is rough milled the upper plane of workpiece (2), will be rough milled
The upper plane of workpiece (2) is set as the Z axis origin of Cutter coordinate system；
The nc program that (1-2) goes out according to CAM software translating, using the Cutter coordinate system set, first roughing blade
Front, remove workpiece after the completion, face is adjusted in deburring, still the dowel hole (3) and bottom plate by accomplishing fluently in advance on workpiece blank
On the dowel hole (4) accomplished fluently in advance positioned and installed with selling directly to households, according to the nc program that CAM software translating goes out, using setting
The Cutter coordinate system set, the reverse side of roughing blade；Specific cooked mode and parameter: roughing blade uses chamfer machining mould
Formula, chamfer machining mode are suitable for big surplus processing and all round closure, and programmed algorithm is simple, high in machining efficiency, cutting step
2mm, machining allowance stay 2mm, and 14 cotter mill cutter of cutter, 1000 revs/min of the speed of mainshaft, feeding speed 100mm/ divides；
(2) oscillating aging tooling is utilized, inner stress of work is eliminated:
Cam (13) is kept in contact with the idler wheel (11) on support frame (10) by the pulling force that the elasticity of spring (14) generates, work
The both ends of part are fixed by gripper jaw (15), and when motor (12) rotation, band moving cam (13) is rotated, while idler wheel (11) being driven to make
It pumps, workpiece (17) pumps therewith, by the control to motor (12) revolving speed, realizes to workpiece
(17) vibration of different frequency, to effectively eliminate the internal stress of workpiece；
(3) grinding fixture is utilized, the blank after roughing is ground:
Corase grinding bottom plate (22) is lain on the workbench of surface grinding machine, the corase grinding workpiece (23) processed is passed through into corase grinding workpiece
Second dowel hole (26) is positioned and is installed with selling directly to households with corase grinding the second dowel hole of bottom plate (27), opens the electromagnetism of surface grinding machine
Sucker sucks corase grinding bottom plate (22) and corase grinding workpiece (23), and plane in grinding removes workpiece and bottom plate after upper plane is light-exposed,
Big face after deburring by workpiece after light-exposed is directly placed on the workbench of grinding machine, is opened magnechuck and is sucked workpiece, is ground
The reverse side of workpiece is removed after light-exposed；
(4) half finish-milling tooling is utilized, semifinishing is carried out to blade tow sides:
Half finish-milling bottom plate (28) is fixed on numerically-controlled machine tool by (4-1), to two dowel holes (34) centering, makes two dowel holes
The line of centres is parallel with the X-direction of numerically-controlled machine tool, and the half finish-milling workpiece (29) processed is fixed by half finish-milling workpiece second
Position pin hole (34) and half the second dowel hole of finish-milling bottom plate (35) are positioned and are installed with selling directly to households, are fixed it with pressing plate, centering half
The pin hole on second group of dowel hole (34) left side of finish-milling workpiece, sets its center to the origin of Cutter coordinate system, centering
The upper plane of workpiece blank sets the upper plane of workpiece blank to the Z axis origin of Cutter coordinate system；
When (4-2) is processed, according to the nc program that CAM software translating goes out, using the Cutter coordinate system set, first half essence
Workpiece is removed in the front for processing blade after the completion, and face is adjusted in deburring, and half finish-milling workpiece (29) is passed through half finish-milling workpiece second
Dowel hole (34) and half the second dowel hole of finish-milling bottom plate (35) are positioned and are installed with selling directly to households, are fixed it with pressing plate, foundation
The nc program that CAM software translating goes out, uses the Cutter coordinate system set, the reverse side of semifinishing blade；It is specific to add
Work mode and parameter: semifinishing blade uses contour shape mode, and contour shape mode, which belongs to, pecks a layer processing method, program statement
Short, processing precisely, is also used for finishing, cutting step 0.3mm sometimes, and machining allowance stays 0.3mm, and 12 cotter mill cutter of cutter is main
1200 revs/min of axis revolving speed, feeding speed 200mm/ points；
(5) wire cutting machine tool cut-off blade surrounding profile is utilized:
Workpiece is placed on the bracket of wire electrode cutting bench, to two dowel holes (34) centering, makes two dowel holes
The line of centres is parallel with the X-direction of wire cutting machine tool, is fixed it with pressing plate, the pin on the left side on half finish-milling workpiece (29) of centering
Hole sets its center to the origin of Cutter coordinate system；According to the nc program that CAM software translating goes out, using setting
The Cutter coordinate system set is cut into blade surrounding profile；
(6) oscillating aging tooling is utilized, timeliness is carried out to the semifinishing blade after wire cutting:
Cam (13) is kept in contact with the idler wheel (11) on support frame (10) by the pulling force that the elasticity of spring (14) generates, work
The both ends of part are fixed by gripper jaw (15), and when motor (12) rotation, band moving cam (13) is rotated, while idler wheel (11) being driven to make
It pumps, workpiece (17) pumps therewith, by the control to motor (12) revolving speed, realizes to workpiece
(17) vibration of different frequency, to effectively eliminate the internal stress of workpiece；
(7) combined pneumatic sucker tool is utilized, the tow sides of blade are finished:
It is inserted into positioning pin in bottom plate dowel hole (43), is packed into sealing ring in seal groove (42), sucker dowel hole is inserted into
On positioning pin, bolt is screwed in by sucker bolt through-hole (45) and is fixed, air valve (47) is connected to the screwed pipe (48) of connection air valve,
One of valve port while connects vacuum pump machine, when vacuum pump work, opens the air valve of connection vacuum pump, closes another air valve,
Absorption to blade part can be achieved, close the air valve of connection vacuum pump, open an air valve, it can be achieved that part is removed, essence
Adding for the front and back sides of blade can be realized respectively with the face of different sucker suction inlets and finishing bottom plate (37) installation by processing sucker
Work；
(8) shot blasting nozzle tooling is utilized, the tow sides of blade are finished:
When connector sleeve (49) is connect with nozzle body (53), by the bolt through-hole (51) and nozzle body (53) that have counterbore
On threaded hole bolt fastening, sealing ring is loaded by the connector sleeve seal groove (52) on connector sleeve (49) to seal nozzle chambers
Body (57), pressure-air enters nozzle chamber (57) by air inlet (55) and sprays again from ball mouth (58) out, into ball mouth (56)
It forms negative pressure and sucks shot, then by shot from ball mouth (58) high speed ejection out, the rifling (59) on ball mouth (58) hole wall can out
The high-precision for guaranteeing shot-peening can path rail to shot-peening by connecting rod (50) installation on connector sleeve (49) on numerical control device
Mark realizes NC postprocessing, is specially adapted to the metal works of complex contour, is particularly adapted to the important work of propeller and blade etc
Part, the workpiece after removing bead, the at this time state of workpiece are as follows: the anti-fatigue performance of blade, Corrosion Fatigue Properties and anti-
Stress corrosion performance greatly improves, and effectively improves the comprehensive performance and service life of blade.
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| CN114178927A (en) * | 2021-12-16 | 2022-03-15 | 潍坊东方钢管有限公司 | Edge and corner rounding device for end part of guardrail plate |
| CN114178927B (en) * | 2021-12-16 | 2024-03-15 | 潍坊东方钢管有限公司 | Edge angle grinding device for end part of guardrail plate |
| WO2023230846A1 (en) * | 2022-05-31 | 2023-12-07 | 安徽池州家用机床股份有限公司 | Dovetail grinding fixture for machine tool |
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| CN109807572B (en) | 2020-09-18 |
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