CN108015330A - A kind of centrifugal pump impeller cover board machining spiral groove device and its processing method - Google Patents
A kind of centrifugal pump impeller cover board machining spiral groove device and its processing method Download PDFInfo
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- CN108015330A CN108015330A CN201711473614.1A CN201711473614A CN108015330A CN 108015330 A CN108015330 A CN 108015330A CN 201711473614 A CN201711473614 A CN 201711473614A CN 108015330 A CN108015330 A CN 108015330A
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- impeller
- workbench
- unit
- gear
- cover board
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23C—MILLING
- B23C3/00—Milling particular work; Special milling operations; Machines therefor
- B23C3/28—Grooving workpieces
- B23C3/32—Milling helical grooves, e.g. in making twist-drills
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- Mechanical Engineering (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
A kind of centrifugal pump impeller cover board machining spiral groove device and its processing method, described device includes support unit, clamping driving unit, feed unit and cutter unit, feed unit is installed on support unit top, and clamping driving unit is for linear motion by the driving of feed unit；Cutter unit is installed on support unit and is suspended from the part of clamping driving unit impeller mounting portion, and keeps the cutting edge of cutter unit all the time towards the machined surface of impeller；The method is：Cutter unit and impeller are installed, impeller is adjusted to initial position to be processed by handwheel；Helicla flute is processed in impeller surface；Until impeller surface is processed completely rear shutoff device.The beneficial effects of the invention are as follows：Helicla flute is processed at the impeller cover back side, impeller is reduced the loss of turbulent flow when rotating, so as to improve impeller adiabatic efficiency, achievees the purpose that energy saving.This processing unit (plant), has the characteristics that easy to operate, simple in structure, efficient, and can reduce energy consumption, pollution-free.
Description
Technical field
The present invention relates to a kind of centrifugal pump impeller cover board machining spiral groove device and its processing method.
Background technology
With the continuous lifting of global energy consumption, scientists by energy put into how effectively utilization with
Protect above energy field.Try the frictional resistance of reduction vehicle surface, become the break-through point that energy technology is saved in development.
Skin friction resistance occupies very big ratio among drag overall, and in the subregion of liquid flow surface, flowing is at
The state of turbulent flow, so research turbulent boundary layer drag reduction meaning is very great.Centrifugal pump impeller at work, on the outside of its cover board and
Disc friction caused by outer rim rubs with pump intracavity liquid can have a great impact the efficiency of pump, increase its energy damage
Lose.
In recent years, groove drag reduction was identified as most effective drag reduction mode.For the processing of pipeline groove, existing pipeline
Robot can carry out rotation processing into pipeline.But for centrifugal pump impeller cover board, lack special process equipment now.
The content of the invention
To solve the above problems, the present invention provides a kind of centrifugal pump impeller cover board machining spiral groove device and its processing side
Method, it is intended that batch processes helicla flute at the impeller cover back side, makes impeller reduce the loss of turbulent flow when rotating, so as to improve impeller
Efficiency, achievees the purpose that energy saving.This processing unit (plant), has the characteristics that easy to operate, simple in structure, efficient, and can drop
It is low energy expenditure, pollution-free.
A kind of centrifugal pump impeller cover board machining spiral groove device of the present invention, it is characterised in that：Including being used to support
Support unit, for installing impeller and driving clamping driving unit that impeller rotates in a circumferential direction, clamp driving unit for driving
The feed unit of linear motion and the cutter unit for processing spiral grooves on impeller, the feed unit are installed on institute
Support unit top is stated, the clamping driving unit is for linear motion by the driving of the feed unit；The cutter unit peace
The part of clamping driving unit impeller mounting portion is suspended from mounted in support unit, and keeps the cutting edge of cutter unit all the time towards leaf
The machined surface of wheel；
The support unit includes base and bearing, and the base top is equipped with open cavity, the base it is upper
Portion is equipped with the line slideway slided for clamping driving unit vertically, and the bottom of the bearing and the base are affixed, the branch
The top of seat carries the cantilever beam for being suspended from above base and being used for and install cutter unit；The axial direction for defining base is rectilinear orbit
Central axis direction；
The clamping driving unit includes workbench, driving motor, worm-gear speed reducer, impeller erecting bed and clamping
Part, the side of the workbench are equipped with unthreaded hole, and the bottom of the workbench is slidably connected with the line slideway on the base, institute
Stating workbench has the impeller mounting platform for being used for installing impeller, and impeller mounting platform is equipped with and is used to accommodate impeller erecting bed
Through hole；The driving motor and the worm-gear speed reducer are packed in the workbench, and the driving motor
The worm screw that output shaft is used as power intake by first shaft coupling with the worm-gear speed reducer is connected, the worm and gear
Gear reducer realizes impeller as the impeller erecting bed for lower part being fixedly mounted with the output shaft of power output end along through hole and being axially inserted into it
Erecting bed can rotate in a circumferential direction around its central axis；The top of the impeller erecting bed is higher by the upper surface of workbench, and formation is used for
The impeller mounting portion of impeller is installed, and matches somebody with somebody the clamping element for being useful for locking impeller in impeller mounting portion；
The feed unit includes screw, conical gear and handwheel, and the screw axially penetrates through the work along base
Both ends are installed on base after platform side wall unthreaded hole, and screw is connected with base rotation；The center of the conical gear, which is equipped with, to be used
In the threaded hole for being inserted into screw and being spirally connected therewith, the wheel hub of the conical gear is rotatablely connected by bearing and the workbench,
The conical gear is engaged with the impeller erecting bed so that conical gear is under the driving of impeller erecting bed around its own center
Axis rotates in a circumferential direction movement；The handwheel is installed on one end of the screw, for adjusting impeller to starting Working position；
The cutter unit includes cutting motor, motor cabinet, spring chuck and vertical milling cutter, and the motor cabinet is installed on
Bearing overarm arm is located at one end directly over impeller；The cutting motor is packed on the motor cabinet, the driving of cutting motor
Axis is directed toward impeller, and the spring chuck of vertical milling cutter is installed by second shaft coupling, and the bottom clamping of the spring chuck is used for
The vertical milling cutter being processed to impeller, and the vertical milling cutter for being processed to impeller surface, the cutting edge of vertical milling cutter
Towards the finished surface of impeller；During impeller rotation, the cutting edge of vertical milling cutter is contacted with the finished surface of impeller all the time, is stood
Under movement of the formula milling cutter after the superposition of impeller rotation and impeller along base linear slide, processed in impeller surface spiral
Groove.
The impeller erecting bed is along its axial impeller mounting portion being divided into from top to bottom for fixing impeller and for being inserted into
The bevel gear engaging piece engaged in workbench through hole and with conical gear, the impeller mounting portion are cylinder, and the impeller
Along its axial detachable equipped with an installation axle being used for impeller centering, the top of installation axle, which is equipped with, to be used at the center of mounting portion
The reverse frustoconic voussoir of impeller center through hole is caught in, the top outside diameter of reverse frustoconic voussoir is more than its underpart outside diameter, and inverted round stage
The top outside diameter of shape voussoir and the central through hole of impeller coordinate, and realize the centering to impeller；The surface edge of the impeller mounting portion
It is radially provided with a plurality of radial direction thread groove, and one end of radial slot extends to impeller mounting portion outer, and the other end is passed at installation axle,
And every radial slot is provided with clamping element, the clamping element includes a fastening bolt and an arc grip slide, described tight
Fixing bolt is spirally connected with the radial slot, and the arc grip slide is slidably connected with the radial slot, and by fastening accordingly
Screw clamp is realized to the circumferentially fixed of impeller on impeller outer wall to be processed.
The surface of the impeller mounting portion is radially equipped with 3 radial direction thread grooves.
The base includes rectangular base plate, two pieces of rectangular side panels and two end plates, and wherein rectangular side panels are along rectangular base plate
Long side direction right angle setting, short side direction right angle setting of the end plate along rectangular base plate, the rectangular base plate, two pieces of rectangular side panels
And two end plates surround the babinet of the cuboid of a upper end opening jointly.
The part that rectangular side panels are higher by the top of end plate is equipped with the mounting hole for being used for installing screw, and the screw passes through insertion
The bearing of mounting hole and the end plate are rotatablely connected, and realize that screw rotates in a circumferential direction movement around its own axis.
The upper edge of the rectangular side panels is respectively provided with straight line guide rail along its length, and every rectilinear orbit is by two
The V-block composition of bar parallel arrangement, and the groove for blocking workbench sliding edge edge is left between V-block.
Bearing is fixedly mounted with one of end plate, and the top of bearing forms to the bending of workbench direction and is suspended from workbench
The cantilever beam of side.
The workbench is inverted U-shaped structure, and it is recessed that two parallel sliding edges of wherein workbench are caught in corresponding line slideway
In groove, realize that the two is slidably connected.
The worm-gear speed reducer includes babinet, cover board, worm screw, worm gear and output shaft, the babinet and the cover board
Surround for install the worm screw, worm gear reduction box, wherein worm screw by corresponding bearings in reduction box, the two turn
Dynamic connection, worm gear is by output shaft in reduction box；One end of worm screw stretched out out of babinet after by first shaft coupling with drive
The output terminal of dynamic motor is connected；The external gear of worm screw is engaged with worm gear, worm gear and the output shaft key connection for being inserted heart hole；It is defeated
The other end of shaft is inserted into the central hole of impeller erecting bed after cover board stretching, the two realizes impeller by connecting key key connection
Erecting bed it is circumferentially fixed, the two is locked by the round nut that is sleeved on output shaft and is spirally connected therewith, common with the output shaft shaft shoulder
The axial restraint of impeller erecting bed is realized in effect；The part that the output shaft is located at worm gear both sides is respectively equipped with a deep-groove ball axis
Hold, for limiting the axial movement of output shaft.
The processing method carried out using a kind of centrifugal pump impeller cover board machining spiral groove device of the present invention, including with
Lower step：
1) in second shaft coupling bottom, installation is used for the vertical milling cutter being processed in impeller surface；
2) impeller to be processed is put, and handwheel is rotated by arc grip slide and reverse frustoconic voussoir, is slowly adjusted
The position of workbench makes vertical milling cutter rigid connection just stop when contacting Impeller Machining surface to be processed, then dismantles lower installation axle, prevents
Only reverse frustoconic voussoir disturbs groove processing in process, and impeller location is initial position to be processed at this time for definition；
3) start driving motor, drive workbench to continue the direction moved before while impeller erecting bed rotates
Mobile, the combination of rotary motion and the translational motion of impeller makes back shroud of impeller process helicla flute；
4) motor reversal is driven, cutter is exited into finished surface, then operating position, driving electricity are adjusted by rotation hand wheel
Machine inverts, and carries out the processing of second of groove；
5) repeated several times step 3), 4), completes the processing to an impeller cover helicla flute；
6) driving motor is closed, removes the part after processing, rotation hand wheel, adjusts the position of workbench；
7) 2~7 steps are repeated, other impellers to be processed are processed.
Here a helix is processed.(but if special requirement, this device can also process a plurality of helix).Workbench
Movement controlled by the rotation of motor, workbench is processed toward moving left from right, after processing, motor reversal, workpiece
Withdraw from left to right, so calculate a circulation.Motor independent control.
The beneficial effects of the invention are as follows：1) two motors, the circumgyration incision of a control cutter, a control have only been used
The rotation of parts to be processed and the feeding of workbench, simple in structure, easy to operate, efficiency is higher；2) by clamping device and circular cone
Gear is combined together to form impeller erecting bed, makes structure more compact, saves space, reduces intermediate link, improve effect
Rate；3) the centering mode of parts to be processed is relatively new and simple to operation；4) concave, bottom surface and ground shape is integrally presented in base
Into coming into contact in a large area, middle hollow out, ensures reduction material while the space of gear operation, it is ensured that the helicla flute processed can expire
The basic demand of sufficient drag reduction.
Brief description of the drawings
Fig. 1 is the graphics of structure of the present invention；
Fig. 2 is the front view of structure of the present invention；
Fig. 3 is clamping gear unit front view；
Fig. 4 is clamping gear unit left view；
Fig. 5 is feed unit structure chart；
Fig. 6 cutter unit structure charts；
Fig. 7 is worm-gear speed reducer structure chart；
The centering mode figure of the parts to be processed of Fig. 8.
Embodiment
The present invention is further illustrated below in conjunction with the accompanying drawings
Referring to the drawings：
A kind of centrifugal pump impeller cover board machining spiral groove device of the present invention of embodiment 1, including the branch being used to support
Support unit 1, for installing impeller and driving clamping driving unit 2 that impeller rotates in a circumferential direction, for driving clamping driving unit straight
The feed unit 3 of line movement and the cutter unit 4 for processing spiral grooves on impeller, the feed unit 3 are installed on
1 top of support unit, the clamping driving unit 2 are for linear motion by the driving of the feed unit 3；The cutting is single
Member 4 is installed on support unit 1 and is suspended from the part of clamping driving unit impeller mounting portion, and keeps the cutting edge of cutter unit all the time
Towards the machined surface of impeller；
The support unit 1 includes base 11 and bearing 12, and 11 top of base is equipped with open cavity, the bottom
The top of seat 11 is equipped with the line slideway 13 slided for clamping driving unit, bottom and the base of the bearing 12 vertically
11 is affixed, and the top of the bearing 12, which carries, is suspended from the top of base 11 and the cantilever beam 121 for installing cutter unit；Define bottom
The axial direction of seat is the central axis direction of rectilinear orbit；
The clamping driving unit 2 includes workbench 21, driving motor 22, worm-gear speed reducer 23, impeller erecting bed
24 and clamping element 25, the side of the workbench 21 is equipped with unthreaded hole, the bottom of the workbench 21 with the base 11
Line slideway 13 is slidably connected, and the workbench 21 has the impeller mounting platform for being used for installing impeller, and impeller mounting platform
It is equipped with the through hole for being used for accommodating impeller erecting bed；The driving motor 22 and the worm-gear speed reducer 23 are packed in described
21 internal face of workbench, and the output shaft of the driving motor 22 passes through first shaft coupling 26 and the worm-gear speed reducer
23 are connected as the worm screw of power intake, and the worm-gear speed reducer 23 on the output shaft of power output end as being fixedly mounted with down
Portion is axially inserted into the impeller erecting bed 24 in it along through hole, realizes that impeller erecting bed 24 can rotate in a circumferential direction around its central axis；Institute
The top for stating impeller erecting bed 24 is higher by the upper surface of workbench, forms the impeller mounting portion 241 for being used for installing impeller, and in leaf
Wheel mounting portion 241 matches somebody with somebody the clamping element 25 for being useful for locking impeller；
The feed unit 3 includes screw 31, conical gear 32 and handwheel 33, and the screw 31 is axially penetrated through along base
Both ends are installed on the pedestal 11 after the 21 side wall unthreaded hole of workbench, and screw 31 is rotatablely connected with base 11；The circular cone
The center of gear 32, which is equipped with, to be used to be inserted into screw 31 and the threaded hole being spirally connected therewith, and the wheel hub of the conical gear 32 passes through bearing
311 are rotatablely connected with the workbench 21, and the bearing inner race and outer ring are interference fitted with the screw 31 and base 11 respectively,
Axially position carries out the bearing 311 by clutch shaft bearing end cap 312 and the shaft shoulder, the conical gear 32 is pacified with the impeller
Dress platform 24 engages so that conical gear 32 rotates in a circumferential direction movement under the driving of impeller erecting bed 24 around its own central shaft；
The handwheel 33 is installed on one end of the screw 31, for adjusting impeller to starting Working position；The wheel of conical gear 32
It is cased with double-row conical bearing 321 on hub, 321 inner ring of double-row conical bearing and the outer ring wheel with conical gear 32 respectively
Hub and workbench 21 are interference fitted；Bearing fixed side panel 34 is fixed on workbench 21 by 4 bolts being axially distributed, with work
Make platform 21 and axial restraint is carried out to the outer ring of the double-row conical bearing 321 together, inner ring is respectively by sleeve 35 and wheel hub
Left hand projection carries out axial restraint；The screw 31 is fixed, by the rotation of conical gear 32 make itself along screw 31 into
Row moves, and then the movement of whole workbench 21 is driven by double-row conical bearing 321.When needing repositioning, can lead to
Cross the position that handwheel 33 drives the rotation adjustment workbench 21 of screw 31；The cutter unit 4 includes cutting motor 41, motor cabinet
42nd, spring chuck 43 and vertical milling cutter 44, the motor cabinet 42 are installed on one that bearing overarm arm 121 is located at directly over impeller
End；The cutting motor 41 is packed on the motor cabinet 42, and the drive shaft of cutting motor 41 is directed toward impeller, and passes through second
Spring chuck 43 of the installation of axis device 45 for vertical milling cutter 44, the bottom clamping of the spring chuck are used to be processed impeller
Vertical milling cutter 44, and the cutting edge of vertical milling cutter 44 is towards the finished surface of impeller；During impeller rotation, vertical milling cutter 44
Cutting edge contacted all the time with the finished surface of impeller, vertical milling cutter 44 is in impeller rotation and impeller along base linear slide
Under movement after superposition, helicla flute is processed in impeller surface, cutter only rotation during work, without axial feed.
The impeller erecting bed 24 is axially divided into the impeller mounting portion 241 for fixing impeller along it and is used for from top to bottom
The bevel gear engaging piece 242 engaged in insertion workbench through hole and with conical gear, the impeller mounting portion 241 is cylinder,
And the center of the impeller mounting portion 241 is equipped with an installation axle 243 for being used to feel relieved to impeller, installation along its axial detachable
The top of axis 243, which is equipped with, is used to being caught in the reverse frustoconic voussoir 244 of impeller center through hole, outside the top of reverse frustoconic voussoir 244
Footpath is more than its underpart outside diameter, and the central through hole of the top outside diameter of reverse frustoconic voussoir 244 and impeller coordinates, and realizes to impeller
Centering；The surface of the impeller mounting portion 241 is radially equipped with a plurality of radial direction thread groove 2411, and one end of radial slot 2411 is prolonged
Impeller mounting portion outer is extended, the other end is passed at installation axle 243, and every radial slot 2411 is provided with clamping element 25, described
Clamping element includes a fastening bolt 251 and an arc grip slide 252, the fastening bolt 251 and the radial slot
2411 are spirally connected, and the arc grip slide 252 is slidably connected with the radial slot 2411, and pass through corresponding trip bolt 251
It is clipped on impeller outer wall to be processed, realizes to the circumferentially fixed of impeller.
The surface of the impeller mounting portion 241 is radially equipped with 3 radial direction thread grooves 2411.
The base 11 includes 111, two pieces of rectangular side panels 112 of rectangular base plate and two end plates 113, wherein rectangular side panels
It is integrally formed along the long side direction of rectangular base plate, end plate is vertically mounted on two by four screws along the short side direction of rectangular base plate
End, the rectangular base plate, two pieces of rectangular side panels and two end plates surround the case of the cuboid of a upper end opening jointly
Body, the top of end plate is triangular structure.
The part that the top of end plate 113 is higher by rectangular side panels 112 is equipped with the mounting hole for being used for installing screw, and the screw leads to
The bearing and the end plate for crossing embedded mounting hole are rotatablely connected, and realize that screw rotates in a circumferential direction movement around its own axis.
The upper edge of the rectangular side panels 112 is respectively provided with straight line guide rail along its length, and every rectilinear orbit is equal
It is made of the V-block of two parallel arrangements, and the groove for blocking workbench sliding edge edge is left between V-block.
Bearing 12 is fixedly mounted with one of end plate 113, and the top of bearing 12 forms to the bending of workbench direction and is suspended from
Cantilever beam 121 above workbench.
The workbench is inverted U-shaped structure, and it is recessed that two parallel sliding edges of wherein workbench are caught in corresponding line slideway
In groove, realize that the two is slidably connected.
The worm-gear speed reducer 23 includes babinet 231, cover board 232, worm screw 233, worm gear 234 and output shaft 235, institute
State the inner wall that babinet 231 is secured by bolts in workbench；The babinet 231 surrounds described for installing with the cover board 232
By corresponding bearings in reduction box, the two is rotatablely connected for worm screw 233, the reduction box of worm gear 234, wherein worm screw 233,
Worm gear 234 is by output shaft 235 in reduction box；One end of worm screw 233 passes through first shaft coupling after being stretched out out of babinet 231
26 with driving the output terminal of motor 22 to be connected；The external gear of worm screw 233 is engaged with worm gear 234, and worm gear 234 is with being inserted heart hole
235 key connection of output shaft；The other end of output shaft 235 is inserted into the central hole of impeller erecting bed 24 after the stretching of cover board 232,
The two by 238 key connection of connecting key realizes the circumferentially fixed of impeller erecting bed 24, the two by be sleeved on output shaft 235 and with
The round nut 236 being spirally connected lock, the axial restraint of impeller erecting bed 24, i.e. institute are realized with 235 shaft shoulder collective effect of output shaft
State round nut 236 to be sleeved on output shaft 235, and axially position is carried out by the shaft shoulder and impeller erecting bed 24；The output shaft 235
One deep groove ball bearing 237 is respectively housed positioned at the part of 234 both sides of worm gear, for limiting the axial movement of output shaft, two pairs of depths
Ditch ball bearing 237 carries out axially position by sleeve, bearing (ball) cover 239 and babinet 231 respectively, bears axial load.Driving electricity
Machine 22 rotates, and by the deceleration of worm-gear speed reducer 25, drives the rotation of output shaft 235, passes through 238 impeller of connecting key
The rotation of erecting bed 24, so that impeller erecting bed 24 rotates.With reference to shown in Fig. 7, parts to be processed passes through a truncated cone-shaped
Voussoir is felt relieved, and truncated cone-shaped voussoir is passed through from impeller center circular hole, truncated cone-shaped voussoir outside diameter is blocked impeller internal circular hole, from
And realize the positioning and centering to impeller.Three arc grip slides carry out at 3 points under the action of three tight fixed bolts to impeller
Position and step up, detachable lower truncated cone-shaped voussoir after impeller clamps, to prevent cutting auger groove when produces interference.
First shaft coupling 26 and second shaft coupling 45 are yielding coupling.
The processing side that embodiment 2 is carried out using a kind of centrifugal pump impeller cover board machining spiral groove device of the present invention
Method, comprises the following steps：
1) in 45 bottom of second shaft coupling, installation is used for the vertical milling cutter 44 being processed in impeller surface；
2) impeller to be processed is put, and after being fixed by arc grip slide and reverse frustoconic voussoir, rotates handwheel,
Slowly adjusting the position of workbench makes vertical milling cutter rigid connection just stop when contacting Impeller Machining surface to be processed, then the lower peace of dismounting
Axis is filled, prevents that reverse frustoconic voussoir disturbs groove processing in process, impeller location is initial position to be processed at this time for definition；
3) start driving motor, drive workbench to continue the direction moved before while impeller erecting bed rotates
Mobile, the combination of rotary motion and the translational motion of impeller makes back shroud of impeller process helicla flute；
4) motor reversal is driven, cutter is exited into finished surface, then operating position, driving electricity are adjusted by rotation hand wheel
Machine inverts, and carries out the processing of second of groove.
5) repeated several times step 4, completes the processing to an impeller cover helicla flute.
6) driving motor is closed, removes the part after processing, rotation hand wheel, adjusts the position of workbench；
7) 2~7 steps are repeated, other impellers to be processed are processed.
Content described in this specification embodiment is only enumerating to the way of realization of inventive concept, protection of the invention
Scope is not construed as being only limitted to the concrete form that embodiment is stated, protection scope of the present invention also includes art technology
Personnel conceive according to the present invention it is conceivable that equivalent technologies mean.
Claims (10)
- A kind of 1. centrifugal pump impeller cover board machining spiral groove device, it is characterised in that：Including be used to support support unit, be used for Installation impeller and clamping driving unit, the feeding list for driving clamping driving unit linear motion for driving impeller to rotate in a circumferential direction Member and the cutter unit for processing spiral grooves on impeller, the feed unit are installed on the support unit top, The clamping driving unit is for linear motion by the driving of the feed unit；The cutter unit is suspended from installed in support unit The part of driving unit impeller mounting portion is clamped, and keeps the cutting edge of cutter unit all the time towards the machined surface of impeller；The support unit includes base and bearing, and the base top is equipped with open cavity, the top edge of the base It is axially arranged with the line slideway slided for clamping driving unit, the bottom of the bearing and the base are affixed, the bearing Top carries the cantilever beam for being suspended from above base and being used for and install cutter unit；The axial direction for defining base is the center of rectilinear orbit Direction of principal axis；The clamping driving unit includes workbench, driving motor, worm-gear speed reducer, impeller erecting bed and clamping element, The side of the workbench is equipped with unthreaded hole, and the bottom of the workbench is slidably connected with the line slideway on the base, described Workbench has the impeller mounting platform for being used for installing impeller, and impeller mounting platform is equipped with and is used to accommodate impeller erecting bed Through hole；The driving motor and the worm-gear speed reducer are packed in the workbench, and the driving motor is defeated The worm screw that shaft is used as power intake by first shaft coupling with the worm-gear speed reducer is connected, and the worm and gear subtracts Fast machine realizes that impeller is pacified as the impeller erecting bed for lower part being fixedly mounted with the output shaft of power output end along through hole and being axially inserted into it Dress platform can rotate in a circumferential direction around its central axis；The top of the impeller erecting bed is higher by the upper surface of workbench, is formed and is used to pacify The impeller mounting portion of impeller is filled, and matches somebody with somebody the clamping element for being useful for locking impeller in impeller mounting portion；The feed unit includes screw, conical gear and handwheel, and the screw axially penetrates through the workbench side along base Both ends are installed on base after wall unthreaded hole, and screw is connected with base rotation；The center of the conical gear, which is equipped with, to be used to insert The threaded hole for entering screw and being spirally connected therewith, the wheel hub of the conical gear is rotatablely connected by bearing and the workbench, described Conical gear is engaged with the impeller erecting bed so that conical gear is done under the driving of impeller erecting bed around its own central shaft Rotate in a circumferential direction movement；The handwheel is installed on one end of the screw, for adjusting impeller to starting Working position；The cutter unit includes cutting motor, motor cabinet, spring chuck and vertical milling cutter, and the motor cabinet is installed on bearing Overarm arm is located at one end directly over impeller；The cutting motor is packed on the motor cabinet, and the drive shaft of cutting motor refers to It is used for impeller, and by the spring chuck of second shaft coupling installation vertical milling cutter, the bottom clamping of the spring chuck to leaf Take turns the vertical milling cutter that is processed, and the vertical milling cutter for being processed to impeller surface, the cutting edge of vertical milling cutter towards The finished surface of impeller；During impeller rotation, the cutting edge of vertical milling cutter is contacted with the finished surface of impeller all the time, vertical milling Under movement of the knife after the superposition of impeller rotation and impeller along base linear slide, helicla flute is processed in impeller surface.
- A kind of 2. centrifugal pump impeller cover board machining spiral groove device as claimed in claim 1, it is characterised in that：The circular cone work Make platform be axially divided into from top to bottom along it impeller mounting portion for fixing impeller and for be inserted into workbench through hole and with circle The bevel gear engaging piece of bevel gear engagement, the impeller mounting portion is cylinder, and the center of the impeller mounting portion is along its axis To detachable equipped with an installation axle being used for impeller centering, the top of installation axle, which is equipped with, to be used to be caught in impeller center through hole Reverse frustoconic voussoir, the top outside diameter of reverse frustoconic voussoir are more than its underpart outside diameter, and the top outside diameter of reverse frustoconic voussoir with The central through hole of impeller coordinates, and realizes the centering to impeller；The surface of the impeller mounting portion is radially equipped with a plurality of radial direction Thread groove, one end of radial slot extend to impeller mounting portion outer, and the other end is passed at installation axle, and every radial slot is provided with Clamping element, the clamping element include a fastening bolt and an arc grip slide, the fastening bolt and the radial slot It is spirally connected, the arc grip slide is slidably connected with the radial slot, and leaf to be processed is clipped in by corresponding trip bolt Take turns on outer wall, realize to the circumferentially fixed of impeller.
- A kind of 3. centrifugal pump impeller cover board machining spiral groove device as claimed in claim 2, it is characterised in that：The impeller peace The surface in dress portion is radially equipped with 3 radial direction thread grooves.
- A kind of 4. centrifugal pump impeller cover board machining spiral groove device as claimed in claim 1, it is characterised in that：The base bag Rectangular base plate, two pieces of rectangular side panels and two end plates, wherein long side direction right angle setting of the rectangular side panels along rectangular base plate are included, Short side direction right angle setting of the end plate along rectangular base plate, the rectangular base plate, two pieces of rectangular side panels and two end plates enclose jointly Into the babinet of the cuboid of a upper end opening.
- A kind of 5. centrifugal pump impeller cover board machining spiral groove device as claimed in claim 4, it is characterised in that：The top of end plate The part for being higher by rectangular side panels is equipped with and is used to installing the mounting hole of screw, the screw by the bearing of embedded mounting hole with it is described End plate is rotatablely connected, and realizes that screw rotates in a circumferential direction movement around its own axis.
- A kind of 6. centrifugal pump impeller cover board machining spiral groove device as claimed in claim 5, it is characterised in that：The rectangular side The upper edge of plate is respectively provided with straight line guide rail along its length, every rectilinear orbit by two parallel arrangements V-block Composition, and the groove for blocking workbench sliding edge edge is left between V-block.
- 7. a kind of centrifugal pump impeller cover board machining spiral groove device as described in claim 4~6 any one, its feature exist In：Bearing is fixedly mounted with one of end plate, and the top of bearing forms to the bending of workbench direction and is suspended from above workbench Cantilever beam.
- A kind of 8. centrifugal pump impeller cover board machining spiral groove device as described in claim 7 any one, it is characterised in that：Institute It is inverted U-shaped structure to state workbench, and two parallel sliding edges of wherein workbench are caught in corresponding line slideway groove, realize two Person is slidably connected.
- A kind of 9. centrifugal pump impeller cover board machining spiral groove device as claimed in claim 1, it is characterised in that：The worm gear snail Bar gear reducer includes babinet, cover board, worm screw, worm gear and output shaft, and the babinet is surrounded for installing the snail with the cover board The reduction box of bar, worm gear, wherein worm screw are by corresponding bearings in reduction box, the two rotation connection, worm gear passes through defeated Shaft is in reduction box；One end of worm screw stretched out out of babinet after by first shaft coupling and drive motor output terminal phase Even；The external gear of worm screw is engaged with worm gear, worm gear and the output shaft key connection for being inserted heart hole；The other end of output shaft is from lid Plate is inserted into the central hole of impeller erecting bed after stretching out, the two realizes that the circumferential direction of impeller erecting bed is consolidated by connecting key key connection Fixed, the two is locked by the round nut for being sleeved on output shaft and being spirally connected therewith, realizes that impeller is pacified with output shaft shaft shoulder collective effect Fill the axial restraint of platform；The part that the output shaft is located at worm gear both sides is respectively equipped with a deep groove ball bearing, for limiting output The axial movement of axis.
- 10. the processing method carried out using a kind of centrifugal pump impeller cover board machining spiral groove device described in claim 1, including Following steps：1) in second shaft coupling bottom, installation is used for the vertical milling cutter being processed in impeller surface；2) impeller to be processed is put, and handwheel is rotated by arc grip slide and reverse frustoconic voussoir, slowly adjusts work The position of platform makes vertical milling cutter rigid connection just stop when contacting Impeller Machining surface to be processed, then dismantles lower installation axle, prevents from adding Reverse frustoconic voussoir disturbs groove processing during work, and impeller location is initial position to be processed at this time for definition；3) start driving motor, drive the direction that workbench continues to move before to move while impeller erecting bed rotates Dynamic, the combination of rotary motion and the translational motion of impeller makes back shroud of impeller process helicla flute；4) motor reversal is driven, cutter is exited into finished surface, then operating position is adjusted by rotation hand wheel, driving motor is anti- Turn, carry out the processing of second of groove；5) repeated several times step 3), 4), completes the processing to an impeller cover helicla flute；6) driving motor is closed, removes the part after processing, rotation hand wheel, adjusts the position of workbench；7) 2~4 steps are repeated, untill impeller surface is processed completely.
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| CN201711473614.1A CN108015330A (en) | 2017-12-29 | 2017-12-29 | A kind of centrifugal pump impeller cover board machining spiral groove device and its processing method |
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| CN201711473614.1A CN108015330A (en) | 2017-12-29 | 2017-12-29 | A kind of centrifugal pump impeller cover board machining spiral groove device and its processing method |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114833384A (en) * | 2022-05-27 | 2022-08-02 | 西北机器有限公司 | Method for machining double spiral grooves |
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