CN101941092A - Elliptical hole machining device - Google Patents
Elliptical hole machining device Download PDFInfo
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- CN101941092A CN101941092A CN 201010283560 CN201010283560A CN101941092A CN 101941092 A CN101941092 A CN 101941092A CN 201010283560 CN201010283560 CN 201010283560 CN 201010283560 A CN201010283560 A CN 201010283560A CN 101941092 A CN101941092 A CN 101941092A
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Abstract
The invention relates to an elliptical hole machining device. A workpiece clamping device, a spindle box and a power head are arranged on a seat frame; the spindle box is arranged above a longitudinal feeding device; a hollow worm wheel spindle, a circumferential feeding worm wheel and a circumferential feeding worm spindle are arranged inside the box; a first eccentric axial through hole is formed on the hollow worm wheel spindle; a hollow shaft is arranged in the first eccentric axial through hole; the two ends of the hollow shaft are fixedly connected with pinions respectively; the pinions are meshed with internal gears which are fixedly connected at the two ends of the box; the gear ratio and the pitch diameter ratio of the internal gears and the pinions are both 2:1; second eccentric axial through holes are formed on the two pinions; a cutter spindle is arranged in the second eccentric axial through holes; one end of the cutter spindle is provided with a cutter; and the other end of the cutter spindle is connected with the power head through a telescopic universal coupling. The elliptical hole in the invention has a smooth formed surface, accurate dimension and high quality, and the elliptical hole machining device can meet batch machining of different elliptical holes with low machining cost.
Description
Technical field
The present invention relates to a kind of elliptical aperture processing unit (plant), can be used for the machining of elliptical aperture on boiler header reducing end or collection case circumferential position and other parts.
Background technology
The container that diameter is less if can not utilize other removable structure to check, clean, should be offered inspection, clean with hand hole or clean-out opening, with for the ease of internal tank is checked, cleaned.For guaranteeing that hand can enter internal tank, and make the hand that enters in the hole can move freedom, the hand hole minor axis must not be less than 80mm on the regulation boiler pressure parts, and neck or hole circle highly should not surpass 65mm, the clean-out opening internal diameter must not be less than 50mm, and the neck height should not surpass 50mm.Clean-out opening commonly used or hand hole pattern have circular and two kinds of oval hole shapes.Circular port is easily manufactured, is widely used, and difficulty is made in oval hole shape hole, but its advantage be perforated area on the wall can be smaller.
At the processing of elliptical aperture, several different methods such as boring, turning, milling, line cutting, digital control processing, gas cutting are arranged.When if elliptical aperture is positioned at the end of slender type workpiece, for example collect the case product, when adopting turning, need the workpiece rotation, cutter adopts profile tracer processing, for the length requirement of concentricity requirement, fabricating yard, clamping, positioning difficulty and the lathe bed of slender type workpiece all than higher, difficult the employing.Adopt boring to add man-hour, workpiece is fixed, the cutter rotation, the boring cutter rotation becomes certain included angle with the longitudinal axis of workpiece, utilize the cylindrical characteristic principle of cross section of cutting sth. askew for elliptical aperture, ratio calculation according to the major and minor axis of processing elliptical aperture is adjusted corner dimension, and ratio is big more, angle big more (angle is a circular hole when being zero).For being positioned at blind hole type elliptical aperture on slender type workpiece end or the circumference, boring cutter can only adopt cantilever design, and an end clamping is fixed, and the ratio of the major and minor axis of elliptical aperture is big more, and the boring degree of depth is more little.When having the groove requirement, then can't realize on the elliptical aperture periphery.Adopt conventional Milling Process, process principle and processing mode are similar or consistent with the boring mode.Adopt the line cutting mode, for through elliptical aperture, the machining accuracy height, but then can't process for blind hole type elliptical aperture.And the employing digital control processing, processing cost is higher.More employing gas cutting mode in the industry is had relatively high expectations to operating personnel's gas cutting technical ability, and it is bigger influenced by subjective human factor, and quality is difficult to guarantee, has a strong impact on the crudy of elliptical aperture.
Summary of the invention
The present invention is directed to the problems referred to above, a kind of elliptical aperture processing unit (plant) is provided, adopt the smooth rounding of elliptical aperture, the quality height of this device processing, but batch machining elliptical aperture and groove thereof, and processing cost is low.
According to technical scheme of the present invention, a kind of elliptical aperture processing unit (plant) comprises mounting, is aligned in sequence with Workpiece clamping device, main spindle box and unit head on the described mounting; Described main spindle box comprises casing, described casing is installed on the longitudinal feeding device, hollow worm gear main shaft rotatably is installed in the described casing, described hollow worm gear main shaft is equipped with circumferential feeding worm gear outward, described circumferential feeding worm gear is meshed with circumferential feed worm main shaft, one end of described circumferential feed worm main shaft is provided with first handwheel, described hollow worm gear main shaft has the first eccentric axially extending bore, in the described first eccentric axially extending bore hollow shaft is installed rotatably, the two ends of described hollow shaft are fixedly connected with pinion respectively, described pinion is meshed with the internal gear that is fixedly connected on described tank ends respectively, described internal gear is 2: 1 with the gear ratio and the reference diameter ratio thereof of described pinion, have the corresponding second eccentric axially extending bore on two described pinions, in the described second eccentric axially extending bore cutter spindle is installed rotatably, described cutter spindle passes described hollow shaft, one end of described cutter spindle is equipped with cutter, and its other end links to each other with described unit head by the telescopic Hooks coupling universal coupling.
Described cutter is connected by the mohs tapered bore structure with described cutter spindle.
The knife end of described cutter spindle is provided with unloads knife system.
Described cutter spindle depart from described pinion central axis apart from e, equal directly half of b difference of elliptical aperture major semiaxis to be processed footpath a and semi-minor axis.
The two ends of described hollow shaft are connected with described pinion with right-handed thread by left hand thread respectively, and adopt first screw location.
The arranged outside of the pinion of described knife end has shred holding up plate.
The two ends of described casing are fixedly connected with the 3rd end cap, and described internal gear is fixedly connected on described the 3rd end cap.
Described Workpiece clamping device comprises locating piece, is provided with the adjustment backing plate below the pressing plate that has been threaded on the described locating piece, described locating piece.
Described longitudinal feeding device comprises two guide rails that be arranged in parallel, be sliding combined with slide unit on the described guide rail, be fixedly connected with length feed worm screw main shaft by first bearing on the described slide unit, one end of described length feed worm screw main shaft is provided with second handwheel, described length feed worm screw main shaft is meshed with the length feed worm gear, described length feed worm gear is enclosed within on the leading screw by threaded engagement, and the two ends of described leading screw are fixed on the described mounting by second bearing respectively.
Be covered with case above the described telescopic Hooks coupling universal coupling.
Technique effect of the present invention is: 1, adopt clamping workpiece to fix, cutter is processed elliptical aperture around the mode of processing elliptical aperture axle center revolution in the time of self axis rotation, the finished surface of elliptical aperture is bright and clean, moulding is accurate, quality height, but batch machining, processing cost is low; 2, compact conformation, small and exquisite, demolition and maintenance are simple, workpiece facility in place, the equipment mounting arrangements is quick; 3, by selecting the cutter of different radiuss of clean-up and angle for use, the elliptical aperture and the groove thereof that make the present invention can adapt to different size, different depth are processed, and be simple and convenient, easy to maintenance; 4, mohs tapered bore is adopted in the cutter spindle hole, and cutter is accurate to the heart, installs rapidly, automatically locks; 5, cutter can be selected standard straight handle or Morse taper shank slotting cutter for use, installs standard staight shank instrument sleeve when selecting staight shank for use additional; Can select the anti-fish-tail cutter of corresponding size angle during milling elliptical aperture edge groove for use, also can design cutter processing voluntarily, select for use make simple and convenient; 6, the cutter spindle front end adopts and unloads knife system dismounting cutter, easy-to-operate.7, cutter spindle is erected on two pinions of synchro-meshing running, guarantees that cutter spindle has enough support stiffness, has reduced the spindle nose swing and has caused that the cylindricity of elliptical aperture is overproof; 8, two pairs of inside engaged gears adopt involute gear easy to manufacture, that be convenient to install, compact conformation, and stable drive, reliable operation is durable; 9, the elliptical aperture track drives pinion by the manual cylindrical worm gearing transmission on the housing, compact conformation, and the worm-drive while, engaging tooth was to many, shock loading is little, stable drive, noise is low, can carry out manual adjustments according to the hoop cutting situation of elliptical aperture in real time; 10, worm gear gear ring and the split of worm gear main shaft design, screw connects, and is with low cost, is easy to make, dismantles and changes; 11, the worm and gear transmission has self-locking performance, guarantees that effectively cutter makes the stationarity of elliptical aperture orbiting motion location after finishing the cutting-in feed motion; 12, the big pinion split design of engagement in two pairs, simple in structure, be easy to make; 12, adopt hollow shaft to be threaded between two synchronous pinion gears, the screw location, two head threads revolve design about adopting, and play the locking effect of pinion rotation gear motion; 13, worm and gear and the comprehensive transmission of screw mandrel spiral are adopted in the front and back feeding of slide unit, manually control, and integrated transmission system is good to the center, should not become flexible, transmission has reverse drive self-locking performance, hand feed, impact when being convenient to reduce the cutting of cutter incision workpiece, feeding is stable, and speed control is convenient; 14, adopt the axial span centre symmetric arrangement of rolling bearing, each power transmission shaft load distributing homogeneity between all main shafts and the support; 15, be furnished with eccentric lightening hole on the worm gear main shaft, the worm gear main axis rotation is steady; 16, can select small-sized standard telescopic Hooks coupling universal coupling for use, adopt Hooks coupling universal coupling to use in pairs, angle equates between jackshaft and the input and output shaft, and is in all the time in the same plane, and the rotating speed smooth transfer and the collapsing length that satisfy mind-set circumference transmission in the elliptical aperture change needs; 17, slide unit adopts the double square pattern, good rigidly, and bearing capacity is big, and the processing maintenance is easily; 18, unit head can select for use standard to bore milling unit head, and configuration is convenient; 19, also can be used for the processing of elliptical table terrace, periphery, the range of work is extensive.
Description of drawings
Fig. 1 is an operation principle schematic diagram of the present invention.
Fig. 2 is a front view of the present invention.
Fig. 3 is the vertical view of Fig. 2.
Fig. 4 is the cutaway view of the main spindle box among the present invention.
Fig. 5 is the vertical view of Fig. 4.
The specific embodiment
Below in conjunction with accompanying drawing the specific embodiment of the present invention is further described.
As Fig. 2 ~ shown in Figure 5, the present invention is a kind of elliptical aperture processing unit (plant), comprises mounting 7, is aligned in sequence with Workpiece clamping device 1, main spindle box 3 and unit head 8 on the mounting 7.
Workpiece clamping device 1 can be chosen adjustment according to the shape length of workpiece, only illustrates the workpiece front clamp device of pipe end shrink mouth type of workpiece processing end elliptical aperture in the present embodiment.It comprises locating piece 39, by securing member 42 pressing plate 41 that has been threaded, is provided with below the locating piece 39 and adjusts backing plate 40 on the locating piece 39.Adopt the V-type groove location of locating piece 39, be encased inside the adjustment backing plate 40 of different-thickness, it is consistent with the central axis of main spindle box 3 internal gears 34 to satisfy different tube diameters workpiece end elliptical aperture central axis to be processed.If the elliptical aperture on the circumference of lateral attitude need and be adjusted backing plate 40 half-twist settings with locating piece 39, the supplemental support of workpiece adopts similar structures, and is not shown.Workpiece adopts pressing plate 41 and threaded fastener 42 to clamp.The workpiece of other kinds cooperates different clamping device combinations to choose according to its different shape and oval working position.
Main spindle box 3 comprises casing 15, and casing 15 is installed on the longitudinal feeding device 4.
By two the 3rd bearings 13 hollow worm gear main shaft 17 is installed rotatably in the casing 15.
Hollow worm gear main shaft 17 is a multidiameter, by shaft shoulder location and installation circumferential feeding worm gear 16 is arranged on the hollow worm gear main shaft 17, and circumferentially the opposite side of feeding worm gear 16 is by axle sleeve 14 location, and axle sleeve 14 is contained in the inner ring of one the 3rd corresponding bearing 13.Circumferentially feeding worm gear 16 is circumferentially located by second screw 21.Worm gear 16 gear rings and worm gear main shaft 17 splits design, screw connects, and is with low cost, is easy to make, dismantles and changes.
Circumferentially feeding worm gear 16 is meshed with circumferential feed worm main shaft 30.Circumferentially the two ends of feed worm main shaft 30 are installed in second end cap 29 by the 4th bearing 28 respectively, and second end cap 29 is fixed on the casing 15.The outside of two second end caps 29 be threaded respectively first end cap 27 and the 4th end cap 44.First end cap 27 is a stifle, and the 4th end cap 44 is logical lid.Circumferentially an end of feed worm main shaft 30 stretches out from the 4th end cap 44, and its end is provided with first handwheel 43.
Have the first eccentric axially extending bore 46 on the hollow worm gear main shaft 17.By two second bearings 12 hollow shaft 18 is installed rotatably in the first eccentric axially extending bore 46.
The two ends of hollow shaft 18 are connected with two pinions 36 with right-handed thread by left hand thread respectively, and adopt first screw, 20 location.Two head threads revolve design about adopting, and play the locking effect of pinion 36 rotation gear motions, and are loosening with being threaded of hollow shaft 18 when preventing pinion 36 rotations engagement.
Two pinions 36 are meshed with the internal gear 34 that is fixedly connected on casing 15 two ends respectively.Pinion 36 constitutes inner engaging gear mechanism with internal gear 34.The involute gear that gear adopts is easy to manufacture, be convenient to install, compact conformation, stable drive, reliable operation is durable.
The two ends of casing 15 are fixedly connected with the 3rd end cap 33, and internal gear 34 is fixedly connected on the 3rd end cap 33.The arranged outside of the internal gear 34 of close telescopic Hooks coupling universal coupling 5 one sides has baffle plate 19.The arranged outside of the pinion 36 of knife end has shred holding up plate 35, prevents that smear metal from entering casing 15 inside.
The circumferential movement of cutter spindle 10 is by circumferential worm and gear feed arrangement manual drives.Manually cylindrical worm gearing transmission drives pinion, compact conformation, and engaging tooth is to many simultaneously in worm-drive, and shock loading is little, stable drive, noise is low, can carry out manual adjustments according to the hoop cutting situation of elliptical aperture in real time.The worm and gear transmission has self-locking performance, guarantees that effectively cutter makes the stationarity of elliptical aperture orbiting motion location after finishing the cutting-in feed motion.
Rotate first handwheel 43, drive circumferential feeding worm gear 16 and 17 rotations of worm gear main shaft thereof by circumferential feed worm main shaft 30 transmissions, and then drive 36 of pinions passing hollow worm gear main shaft 17 and connect hollow shaft 18 and make circular motion around the worm gear axle center, make the pinion 36 at hollow shaft 18 two ends also make circular motion around the worm gear axle center.
The inner engaging gear mechanism of main spindle box 3 is arranged in pairs, when pinion 36 is made circular motion and internal gear 34 carry out in the engagement rotation, make the cutter spindle that departs from pinion axes 10 pass pinion hollow shaft 18 do the elliptical orbit motion along with the engagement rotation of pinion with around the revolution of internal gear axis.
One end of cutter spindle 10 is equipped with cutter 37, according to the cutter 37 of the different corresponding specifications of elliptical aperture selection of dimension.Cutter 37 is connected by the mohs tapered bore structure with cutter spindle 10.When adopting minor diameter staight shank cutter, need install standard staight shank instrument sleeve additional.This end of cutter spindle 10 also is provided with screw thread and unloads knife system 38, and the turn sleeve can carry out the disassembling section of cutter 37 forward.
The other end of cutter spindle 10 links to each other with unit head 8 by telescopic Hooks coupling universal coupling 5.Shaft coupling 5 adopts the paired articulated cross shaft structure of telescopic shaft coupling, and the collapsing length of shaft coupling 5 satisfies main spindle box 3 and carries out the vertically needs of front and back slip, contains the cutting depth needs of elliptical aperture.The input of scalable shaft coupling 5 (unit head 8) is in the plane all the time with output (cutter spindle 10) end axis.
The rotation rotation of cutter spindle 10 is driven by unit head 8.The whole rotating speed adjustment by unit head 8 of the spinning velocity modulation of cutter 37 realizes, so that choose adjustment according to the actual cut consumption of elliptical aperture.Unit head 8 is fixedly supported upon on the mounting 7, and selection standard bores milling unit head.
Be covered with case 6 above the telescopic Hooks coupling universal coupling 5.Case 6 also adopts Collapsible structure, be wrapped in shaft coupling 5 around, the protective action of shaft coupling 5 runnings when playing main spindle box 3 and doing longitudinal sliding motion.
Longitudinal feeding device 4 comprises two guide rails that be arranged in parallel 31, and the two ends of guide rail 31 are provided with limited block 32, the length travel of restriction main spindle box 3.Be sliding combined with slide unit 2 on the guide rail 31, main spindle box 3 is fixed on the slide unit 2.Main spindle box 3 slides before and after doing vertically by longitudinal feed mechanism 4.
Be fixedly connected with length feed worm screw main shaft 23 by first bearing 22 on the slide unit 2.One end of length feed worm screw main shaft 23 is provided with second handwheel 45, length feed worm screw main shaft 23 is meshed with length feed worm gear 26, length feed worm gear 26 is enclosed within on the leading screw 25 by threaded engagement, and the two ends of leading screw 25 are fixed on guide rail 31 inboards on the mounting 7 by second bearing 24 respectively.
Longitudinal feed mechanism 4 adopts the worm and gear spindle gear, rotate second handwheel 45 and drive 26 rotations of length feed worm gear by 23 transmissions of length feed worm screw main shaft, length feed worm gear 26 adopts threaded engagement with leading screw 25, does front and back length feed slip by the mobile drive slide unit 2 and the main spindle box 3 of length feed worm gear 26 on leading screw 25 along guide rail 31.Worm and gear and the comprehensive transmission of screw mandrel spiral are adopted in the front and back feeding of slide unit 2, manually control, and integrated transmission system is good to the center, should not become flexible, transmission has reverse drive self-locking performance, hand feed, impact when being convenient to reduce the cutting of cutter incision workpiece, feeding is stable, and speed control is convenient.
Operation principle of the present invention is: a pair of big pinion of engagement mutually, and gear wheel is an internal gear, and pinion is an external gear, and the gear wheel number of teeth is the twice of pinion.Pinion rotates around the gear wheel center of circle, and it is back around self center rotation with the gear wheel engagement, on the pinion outside the center movement locus of any be elliptical aperture, the difference of this elliptical aperture major semiaxis, semi-minor axis be on the pinion this point to the twice of pinion rotation centre distance.
As shown in Figure 1, a represents elliptical aperture major semiaxis to be processed footpath, b represents elliptical aperture semi-minor axis to be processed footpath, a ' expression oval cylindrical major semiaxis to be processed footpath, b ' expression oval cylindrical semi-minor axis to be processed footpath, R represents the reference radius of internal gear 34, r represents the reference radius of pinion 36, the milling radius of r ' expression cutter 37, e represents that cutter spindle 10 departs from the distance of pinion 36 central axis.Among the figure, R=2r, e=(a+b)/2.
The invention provides a kind of new oval method for processing, that is: after the employing workpiece positioning and clamping, the axis of elliptical aperture is parallel with the axis of cutter 37 on the workpiece, consistent with the revolution dead in line of cutter 37, cutter 37 is when centering on its axis rotation, axis around elliptical aperture is made revolution motion, and the running orbit of cutter 37 is oval.Cutter 37 carries out circumferential Milling Process behind incision workpiece certain depth, finish week revolution after, carry out circumferential Milling Process after cutting the workpiece certain depth again.Repeat aforesaid operations, machine until elliptical aperture.For the elliptical aperture edge groove requirement is arranged, after finishing elliptical aperture processing, or the line gas cutting, reserves certain chipping allowance, select the cutter 37 rotation millings of identical cutting angle for use, machine until groove, made allowance excises fully in advance.Carry out the workpiece of elliptical table terrace or periphery machining for needs, need select different positioning clamping devices for use, after the location clamped, the process operation process was identical with said process.
Use the present invention, adopt machining fully, elliptical aperture and groove moulding thereof are accurate, bright and clean rounding, and precision is higher.The present invention is simple and convenient, easy to maintenance, can satisfy the machining needs of elliptical aperture and elliptical aperture edge groove on reducing position, boiler header end, cylindrical shell circumferential location and other workpiece well, also can be used for the processing of like parts elliptical table terraces such as hand hole cover, cleaning port lid, periphery, it is wide to be suitable for the range of work.
The course of work of the present invention is as follows:
Use the present invention to carry out elliptical aperture and add man-hour, select suitable clamping device 1 earlier for use, for the elliptical aperture on the pipe fitting, select corresponding adjustment backing plate 40 for use, with work piece positioning tight with locating slot in, the axial location and consistent rear fender 41 screw threads for fastening of main spindle box 3 central axis internal gears 34 axis of calibrating elliptical aperture; After directly selecting suitable cutter 37 and cutter spindle 10 assembling and positioning by cutting hole, start unit head 8 and drive cutters 37 rotations.Rotate feeding second handwheel 45 and carry out cutter 37 plunge millings, cut certain cutting depth after, shut-down operation second handwheel 45 rotates first handwheel 43 and drives cutters 37 and do ovally circumferentially to cut.After finishing week cutting, rotate feeding second handwheel 45 again and carry out cutter 37 plunge millings, with this cycling repeatedly, until the processing of finishing elliptical aperture.
For the workpiece that the elliptical aperture edge need carry out groove processing, need after finishing the elliptical aperture machining, return main spindle box 3, shutdown resets.Unload cutting tool 37, the cutter 37 of select tape cutting angle is clamping again, selects for use the cutting angle of cutter 37 consistent with the bevel angle at elliptical aperture edge.Start unit head 8, carry out above-mentioned cycling work again, finish until the cutting of edge groove.Also can be according to the actual size of elliptical aperture and edge groove thereof, certain chipping allowance is reserved in the gas cutting of in advance ruling processing, makes surplus can directly adopt the angular cutter cutting to finish, to improve the working (machining) efficiency of perforate.
For the processing of elliptical table terrace or oval side face, choose suitable positioning clamping device 1, fastening after calibrating oval axial location and main spindle box 3 central axis internal gears 34 axis being consistent.Carry out repetitive operation by the aforesaid operations process then, until the machining of finishing required step surface, oval side face, side face groove.
Claims (10)
1. an elliptical aperture processing unit (plant) comprises mounting (7), it is characterized in that: be aligned in sequence with Workpiece clamping device (1), main spindle box (3) and unit head (8) on the described mounting (7); Described main spindle box (3) comprises casing (15), described casing (15) is installed on the longitudinal feeding device (4), hollow worm gear main shaft (17) rotatably is installed in the described casing (15), the outer circumferential feeding worm gear (16) that is equipped with of described hollow worm gear main shaft (17), described circumferential feeding worm gear (16) is meshed with circumferential feed worm main shaft (30), one end of described circumferential feed worm main shaft (30) is provided with first handwheel (43), described hollow worm gear main shaft (17) has the first eccentric axially extending bore (46), in the described first eccentric axially extending bore (46) hollow shaft (18) is installed rotatably, the two ends of described hollow shaft (18) are fixedly connected with pinion (36) respectively, described pinion (36) is meshed with the internal gear (34) that is fixedly connected on described casing (15) two ends respectively, described internal gear (34) is 2: 1 with the gear ratio and the reference diameter ratio thereof of described pinion (36), have the corresponding second eccentric axially extending bore (47) on two described pinions (36), in the described second eccentric axially extending bore (47) cutter spindle (10) is installed rotatably, described cutter spindle (10) passes described hollow shaft (18), one end of described cutter spindle (10) is equipped with cutter (37), and its other end links to each other with described unit head (8) by telescopic Hooks coupling universal coupling (5).
2. according to the described elliptical aperture processing unit (plant) of claim 1, it is characterized in that: described cutter (37) is connected by the mohs tapered bore structure with described cutter spindle (10).
3. according to the described elliptical aperture processing unit (plant) of claim 1, it is characterized in that: the knife end of described cutter spindle (10) is provided with unloads knife system (38).
4. according to the described elliptical aperture processing unit (plant) of claim 1, it is characterized in that: described cutter spindle (10) departs from the distance (e) of described pinion (36) central axis, equals half of elliptical aperture major semiaxis footpath to be processed (a) and semi-minor axis footpath (b) difference.
5. according to the described elliptical aperture processing unit (plant) of claim 1, it is characterized in that: the two ends of described hollow shaft (18) are connected with described pinion (36) with right-handed thread by left hand thread respectively, and adopt first screw (20) location.
6. according to the described elliptical aperture processing unit (plant) of claim 1, it is characterized in that: the arranged outside of the pinion of described knife end (36) has shred holding up plate (35).
7. according to the described elliptical aperture processing unit (plant) of claim 1, it is characterized in that: the two ends of described casing (15) are fixedly connected with the 3rd end cap (33), and described internal gear (34) is fixedly connected on described the 3rd end cap (33).
8. according to the described elliptical aperture processing unit (plant) of claim 1, it is characterized in that: described Workpiece clamping device (1) comprises locating piece (39), be provided with below the pressing plate (41) that has been threaded on the described locating piece (39), described locating piece (39) and adjust backing plate (40).
9. according to the described elliptical aperture processing unit (plant) of claim 1, it is characterized in that: described longitudinal feeding device (4) comprises two guide rails that be arranged in parallel (31), be sliding combined with slide unit (2) on the described guide rail (31), described slide unit (2) is gone up and is fixedly connected with length feed worm screw main shaft (23) by first bearing (22), one end of described length feed worm screw main shaft (23) is provided with second handwheel (45), described length feed worm screw main shaft (23) is meshed with length feed worm gear (26), described length feed worm gear (26) is enclosed within on the leading screw (25) by threaded engagement, and the two ends of described leading screw (25) are fixed on the described mounting (7) by second bearing (24) respectively.
10. according to the described elliptical aperture processing unit (plant) of claim 1, it is characterized in that: be covered with case (6) above the described telescopic Hooks coupling universal coupling (5).
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| Application Number | Priority Date | Filing Date | Title |
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| CN2010102835604A CN101941092B (en) | 2010-09-16 | 2010-09-16 | Elliptical hole machining device |
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| CN2010102835604A CN101941092B (en) | 2010-09-16 | 2010-09-16 | Elliptical hole machining device |
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| CN101941092B CN101941092B (en) | 2011-12-07 |
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| CN103659185A (en) * | 2013-12-06 | 2014-03-26 | 新疆北车能源装备有限公司 | Wind power generation foundation ring elliptical hole cutting process |
| CN107824804A (en) * | 2017-12-06 | 2018-03-23 | 山东透平新能源科技有限公司 | A kind of regular irregularly-shaped hole truning fixture |
| CN108161045A (en) * | 2017-11-24 | 2018-06-15 | 哈尔滨汽轮机厂有限责任公司 | A kind of method using facing head processing stator component of steam turbine nozzle |
| CN108759605A (en) * | 2018-05-16 | 2018-11-06 | 中车眉山车辆有限公司 | A kind of slotted hole and elliptical aperture look for the device and method of geometric center |
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| CN103659185A (en) * | 2013-12-06 | 2014-03-26 | 新疆北车能源装备有限公司 | Wind power generation foundation ring elliptical hole cutting process |
| CN103659185B (en) * | 2013-12-06 | 2015-10-07 | 新疆北车能源装备有限公司 | Wind power generation base ring elliptical aperture cutting technique |
| CN108161045A (en) * | 2017-11-24 | 2018-06-15 | 哈尔滨汽轮机厂有限责任公司 | A kind of method using facing head processing stator component of steam turbine nozzle |
| CN107824804A (en) * | 2017-12-06 | 2018-03-23 | 山东透平新能源科技有限公司 | A kind of regular irregularly-shaped hole truning fixture |
| CN107824804B (en) * | 2017-12-06 | 2024-04-26 | 山东透平新能源科技有限公司 | Turning device for regular special-shaped holes |
| CN108759605A (en) * | 2018-05-16 | 2018-11-06 | 中车眉山车辆有限公司 | A kind of slotted hole and elliptical aperture look for the device and method of geometric center |
| CN108759605B (en) * | 2018-05-16 | 2023-06-13 | 中车眉山车辆有限公司 | Device and method for finding geometric centers of oblong holes and elliptical holes |
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| CN101941092B (en) | 2011-12-07 |
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