CN102091812B - Processing technique for heavy crankshaft and shaft part milling frame stations - Google Patents
Processing technique for heavy crankshaft and shaft part milling frame stations Download PDFInfo
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- CN102091812B CN102091812B CN201010608350A CN201010608350A CN102091812B CN 102091812 B CN102091812 B CN 102091812B CN 201010608350 A CN201010608350 A CN 201010608350A CN 201010608350 A CN201010608350 A CN 201010608350A CN 102091812 B CN102091812 B CN 102091812B
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- 238000003801 milling Methods 0.000 title claims abstract description 38
- 238000000034 method Methods 0.000 title claims abstract description 17
- 230000007246 mechanism Effects 0.000 claims abstract description 47
- 210000004907 gland Anatomy 0.000 claims abstract description 8
- 238000005516 engineering process Methods 0.000 claims description 13
- 238000007689 inspection Methods 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 3
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 238000007514 turning Methods 0.000 abstract description 2
- 230000005540 biological transmission Effects 0.000 abstract 2
- 238000005553 drilling Methods 0.000 abstract 1
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 238000009826 distribution Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 238000005498 polishing Methods 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005242 forging Methods 0.000 description 1
- 238000003754 machining Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
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Abstract
The invention discloses a processing technique for heavy crankshaft and shaft part milling frame stations and technique equipment, and belongs to the technical field of machinery manufacture. The processing technique equipment is separated from the supporting of a central frame and the processing of a large tonnage rough turning machine tool, a worm gear and a transmission gear are arranged in a rotating mechanism of the equipment, a motor drives the transmission gear in the rotating mechanism, and an apex is arranged on the inner sides of the rotating mechanism and a jacking mechanism respectively; a workpiece is arranged between the two apexes; a counterweight mechanism consists of a stud bolt, a T-shaped bolt, a counterweight block, a counterweight carcass, a closing bolt, a gland and a top tray; the counterweight block is fixed on the counterweight carcass through the stud bolt and the T-shaped bolt; the counterweight carcass is connected with the top tray through the closing bolt; and the left side of the workpiece is provided with a boring and milling power head, and the lower side and the outer side of the workpiece are provided with slide ways. A finished workpiece is obtained by adopting the tooling equipment and the processes of determining the position of a central hole, drilling the central hole, fixing the workpiece, determining the longitudinal position of the boring and milling power head, determining the transverse position of the boring and milling power head, processing the rest frame stations, checking and warehousing.
Description
Technical field
The invention belongs to machinery manufacturing technology field, relate to heavy bent axle and axial workpiece chord position process technology.
Background technology
At present, heavy or long bent axle and axial workpiece chord position processing technology are made up of following process: the first step: mark the workpiece centre axis, and mark central hole location in both ends of the surface; Second step: bore the ream centre bore in both ends of the surface; The 3rd step: two top location on lathe, chuck drive the workpiece rotation and do main motion, the corresponding chord position position of sending a car out; The 4th step: chord position position polishing.
The shortcoming of traditional handicraft and technological equipment is: (one), institute use equipment to process as the crankshaft toothed wheel of special use, and the special purpose machine tool equipment investment is bigger; (2), heavy or be to forge than major axis class blank and form, cylindrical is irregular, the blank of bent axle especially, it is eccentric to forge the back workpiece, the vehicle frame position can only be arranged in common lathe for machining and process; And because the surplus of rough forging is relatively large, and promptly the blank weight of workpiece is also big, the vehicle frame position just must be arranged in the large-tonnage lathe and process; (3), the rough turn machine tooling chord position of large-tonnage, generally its surface roughness is difficult to guarantee, also must be through polishing; (4), at the engine lathe chord position of getting on the bus; Because the workpiece blank cylindrical is irregular, lathe tool all is the situation work in interrupted cut, and the sectional dimension of lathe tool bar has only 40mm * 40mm; The lathe tool sword is 10mm * 40mm; The suffered impulsive force of lathe tool cutting edge is very big, so the cutting edge of lathe tool frequently ruptures, service life is very low; Moreover be exactly to increase the frequent change lathe tool time, production efficiency is extremely low, and production cost increases; (5) use general horizontal lathe processing, front end is the clamping floral disc, and the rear end is the cone centre location, and this structure is very difficult with counterweight partially to borrowing of eccentric part.
Summary of the invention
In order to overcome the prior art deficiency; The present invention provides a kind of heavy bent axle and axial workpiece to mill chord position processing technology and technological equipment; To solve problems such as workpiece is eccentric in process, tonnage is big, and lathe load-bearing tonnage is little, the chord position surface quality is poor, and cost is high, efficient is low.
The technical solution adopted for the present invention to solve the technical problems is to be provided with special-purpose technological equipment, supporting of off center frame and the rough turn machine tooling of large-tonnage, and be equipped with and mill the chord position processing technology accordingly.This technological equipment has designed balance weight mechanism and has come clamping workpiece, is equipped with motor, rotating mechanism, jacking mechanism, boring and milling unit head to form, and has designed special-purpose slideway for jacking mechanism and boring and milling unit head.
Balance weight mechanism is by stud, T type bolt, balancing weight, counterweight carcass, closing bolt, gland, taking over a business to form.Stud and T type bolt are fixed in balancing weight on the counterweight carcass, after gland and counterweight carcass handle close tightly the workpiece axle head are clamped, and the counterweight carcass closes bolt and takes over a business to be connected through handle again.
Worm and gear and travelling gear are set in the rotating mechanism, and the travelling gear that the motor driven rotating mechanism is inner respectively is provided with top in the inboard of rotating mechanism and jacking mechanism.
Jacking mechanism below is provided with end slipway, and two are provided with workpiece between top; Jacking mechanism can vertically be free to slide also positioning and locking at an arbitrary position in slideway.
In the workpiece left side boring and milling unit head is set, at boring and milling unit head front end installed with milling cutter dish, the downside and the outside all are provided with slideway; The facing cutter circle distribution 12 blades, facing cutter is by boring and milling unit head boring bar driven rotary work, the impulsive force when each blade bears interrupted cut on the cutterhead is just very little, the use mission of blade will significantly improve.
After the slideway of vertical and horizontal adopts 120 * 120 square steel to process T type groove, pre-buried to ground, and at a distance from 500mm one blind hole is arranged along axis direction is every, can pick and place T type bolt.
It is following to use this technological equipment to mill the concrete technology of chord position:
1, confirms central hole location: mark the workpiece centre axis, and mark central hole location in both ends of the surface;
2, bore the ream centre bore: bore the ream centre bore in both ends of the surface;
3, fixation workpiece: size and the fixed position of balancing weight on carcass of selecting balancing weight according to the actual eccentric situation of workpiece; Physical length according to workpiece vertically moves jacking mechanism location and locking;
4, confirm the lengthwise position of boring and milling unit head:, adjust the lengthwise position of boring and milling unit head by direct current generator according to the requirement of the required chord position of drawing;
5, start rotating mechanism: worm and gear and the gear in-house by the dc motor driven rotary rotate, and rotate thereby drive workpiece; Velocity of rotation stepless speed regulation between 0.5 ~ 30 rev/min can realize the workpiece processing of different-diameter specification;
6, confirm the lateral attitude of boring and milling unit head: facing cutter is connected through No. 6 mohs tapered bores with the boring bar of boring and milling head outer, and the linear velocity of facing cutter is controlled at 60 ~ 180m/min; The boring bar of being adjusted the boring and milling unit head by direct current generator is flexible; Make facing cutter near workpiece, accomplish the processing of first chord position;
7, the processing of all the other chord positions: repeat 4,6 operations, accomplish the processing of all the other chord positions successively;
8, check warehouse-in: product inspection, packing warehouse-in.
Adopting good effect of the present invention is to have simplified heavy and than the mechanical processing technique of longaxones parts, be provided with technological equipment, has solved cleverly that shaft-like workpiece is eccentric, tonnage is big, problems such as lathe load-bearing tonnage is little, chord position surface quality difference.Thereby reduced cost, improved efficient, promoted product quality and competitiveness.
Description of drawings
Below in conjunction with accompanying drawing and embodiment the present invention is further specified:
Accompanying drawing 1 heavy crankshaft type is milled chord position processing sketch map;
Accompanying drawing 2 balance weight mechanism sketch mapes;
Among Fig. 1: 1 dc motor, 2 rotating mechanisms, 3 balance weight mechanisms, 4 workpiece, 5 slideways, 6 boring and milling unit heads, 7 facing cutters, 8 jacking mechanisms.
Among Fig. 2: 3-1 stud, 3-2T type bolt, 3-3 balancing weight, 3-4 counterweight carcass, 3-5 are taken over a business closing bolt, 3-6 gland, 3-7.
The specific embodiment
Shown in Fig. 1-2: said technical scheme is to have set up balance weight mechanism, and changing traditional turning is milling mode, and supporting of off center frame and the rough turn machine tooling of large-tonnage have formed new processing technology.This technological equipment mainly is made up of dc motor 1, rotating mechanism 2, balance weight mechanism 3, workpiece 4, slideway 5, boring and milling unit head 6, facing cutter 7, jacking mechanism 8.
Balance weight mechanism is by stud 3-1, T type bolt 3-2, balancing weight 3-3, counterweight carcass 3-4, closing bolt 3-5, gland 3-6, taking over a business 3-7 and form.Stud 3-1 and T type bolt 3-2 are fixed in balancing weight 3-3 on the counterweight carcass 3-4, and gland 3-6 and counterweight carcass 3-4 clamp workpiece 4 axle heads after tight closing, and counterweight carcass 3-4 is again through closing bolt 3-5 and taking over a business 3-7 and be connected.The respective center of taking over a business on the 3-7 through adjustment overlaps with the centre of gyration of rotating mechanism 2, guarantees accurate positioning.Add man-hour, accomplish the chord position that mills of different eccentric axis, bent axle through last different eccentric position, the counterweight directions of the modified 3-7 of taking over a business and process.
Worm and gear and travelling gear are set in the rotating mechanism 1-2, and the travelling gear that the motor 1-1 driven in rotation 1-2 of mechanism is inner respectively is provided with top in the inboard of rotating mechanism 1-2 and jacking mechanism 1-8.
Jacking mechanism 1-8 below is provided with end slipway 1-5, and two are provided with workpiece 1-4 between top; Jacking mechanism 1-8 can vertically be free to slide also positioning and locking at an arbitrary position in slideway 1-5.
In the workpiece left side boring and milling unit head 1-6 is set, at boring and milling unit head 1-6 front end installed with milling cutter dish 1-7, the downside and the outside all are provided with slideway 1-5; Facing cutter 1-7 circle distribution 12 blades, facing cutter 1-7 is by boring and milling unit head 1-6 boring bar driven rotary work, the impulsive force when facing cutter 1-7 goes up each blade and bears interrupted cut is just very little, the use mission of blade will significantly improve.
After the slideway 1-5 of vertical and horizontal adopts 120 * 120 square steel to process T type groove, pre-buried to ground, and at a distance from 500mm one blind hole is arranged along axis direction is every, can pick and place T type bolt.
It is following to use this technological equipment to mill the concrete technology of chord position:
1, confirms central hole location: mark workpiece 1-4 central axis, and mark central hole location in both ends of the surface;
2, bore the ream centre bore: bore the ream centre bore in both ends of the surface;
3, fixation workpiece: size and the fixed position of balancing weight 3-3 on counterweight carcass 3-4 of selecting balancing weight 3-3 according to the actual eccentric situation of workpiece 1-4; Physical length according to workpiece 1-4 vertically moves jacking mechanism 1-8 location and locking;
4, confirm the lengthwise position of boring and milling unit head 1-6:, adjust lengthwise position and the locking of boring and milling unit head 1-6 at slideway 1-5 by direct current generator 1-1 according to the requirement of the required chord position of drawing;
5, start rotating mechanism 1-2: worm and gear and the gear inner by the dc motor 1-1 driven rotary 1-2 of mechanism rotate, and rotate thereby drive workpiece 1-4; Velocity of rotation stepless speed regulation between 0.5 ~ 30 rev/min can realize the workpiece 1-4 processing of different-diameter specification;
6, confirm the lateral attitude of boring and milling unit head 1-6: facing cutter 1-7 is connected through No. 6 taper holes of Mohs with the boring bar of boring and milling head outer 1-6, and the linear velocity of facing cutter 1-7 is controlled at 60 ~ 180m/min; The boring bar of being adjusted boring and milling unit head 1-6 by direct current generator 1-1 is flexible; Make facing cutter 1-7 near workpiece 1-4, accomplish the processing of first chord position;
7, the processing of all the other chord positions: repeat 4,6 operations, accomplish the processing of all the other chord positions successively;
8, check warehouse-in: product inspection, packing warehouse-in.
Claims (1)
1. a heavy bent axle mills the chord position processing technology; It is characterized in that said processing technology adopts the special process equipment; Said special process equipment mainly is made up of dc motor, rotating mechanism, balance weight mechanism, jacking mechanism, boring and milling unit head; Off center frame supporting and the rough turn machine tooling of large-tonnage are provided with worm and gear and travelling gear in the said rotating mechanism, respectively be provided with top in the inboard of rotating mechanism and jacking mechanism; Jacking mechanism below is provided with end slipway, and two are provided with workpiece between top; Balance weight mechanism is by stud, T type bolt, balancing weight, counterweight carcass, closing bolt, gland, taking over a business to form; Stud and T type bolt are fixed in balancing weight on the counterweight carcass; After gland and counterweight carcass handle close tightly the workpiece axle head is clamped, the counterweight carcass closes bolt and takes over a business to be connected through handle again; In the workpiece left side boring and milling unit head is set,, slideway all is set at the boring and milling unit head downside and the outside at boring and milling unit head front end installed with milling cutter dish; Said processing technology step is following:
(1) confirms central hole location: mark the workpiece centre axis, and mark central hole location in both ends of the surface;
(2) bore the ream centre bore: bore the ream centre bore in both ends of the surface;
(3) fixation workpiece: size and the fixed position of balancing weight on carcass of selecting balancing weight according to the actual eccentric situation of workpiece; Physical length according to workpiece vertically moves jacking mechanism location and locking;
(4) confirm the lengthwise position of boring and milling unit head:, adjust the lengthwise position of boring and milling unit head by dc motor according to the requirement of the required chord position of drawing;
(5) start rotating mechanism: worm and gear and the travelling gear in-house by the dc motor driven rotary rotate, and rotate thereby drive workpiece; Velocity of rotation stepless speed regulation between 0.5-30 rev/min can realize the workpiece processing of different-diameter specification;
(6) confirm the lateral attitude of boring and milling unit head: facing cutter is connected through No. 6 taper holes of Mohs with the boring bar of boring and milling head outer, and the linear velocity of facing cutter is controlled at 60-180m/min; The boring bar of being adjusted the boring and milling unit head by dc motor is flexible; Make facing cutter near workpiece, accomplish the processing of first chord position;
(7) processing of all the other chord positions: repeat (4), (6) operation, accomplish the processing of all the other chord positions successively;
(8) check warehouse-in: product inspection, packing warehouse-in.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201010608350A CN102091812B (en) | 2010-12-28 | 2010-12-28 | Processing technique for heavy crankshaft and shaft part milling frame stations |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201010608350A CN102091812B (en) | 2010-12-28 | 2010-12-28 | Processing technique for heavy crankshaft and shaft part milling frame stations |
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| CN102091812A CN102091812A (en) | 2011-06-15 |
| CN102091812B true CN102091812B (en) | 2012-09-12 |
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Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| RU2560478C2 (en) | 2011-06-17 | 2015-08-20 | Этксе-Тар, С.А. | Machine and method of machining of ends of crankshafts |
| CN102528110B (en) * | 2011-07-01 | 2013-11-20 | 武汉重工铸锻有限责任公司 | Method for machining central oil hole of main journal of crank of medium-speed engine |
| CN102501037A (en) * | 2011-11-08 | 2012-06-20 | 沃得重型机床（中国）有限公司 | Machining method for crankshaft |
| CN103978243B (en) * | 2014-05-28 | 2016-05-25 | 通裕重工股份有限公司 | The eccentric orfice processing method of a kind of hole processor bed and a kind of high hardness material |
| CN106112058B (en) * | 2016-08-30 | 2017-12-29 | 辽宁五一八内燃机配件有限公司 | A kind of method using lathe process central hole of the crankshaft |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201128016Y (en) * | 2007-12-28 | 2008-10-08 | 中国有色集团沈阳冶金机械有限公司 | Device for processing crankshaft crank |
| CN201267892Y (en) * | 2008-08-19 | 2009-07-08 | 上海惠典机电科技有限公司 | Full-automatic numerical-control device for milling linkage rod flat |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3807643B2 (en) * | 1997-08-12 | 2006-08-09 | コマツ工機株式会社 | Crankshaft machining method |
| WO2007009481A1 (en) * | 2005-07-22 | 2007-01-25 | Gebrüder Heller Maschinenfabrik Gmbh | Method for fine-machining crankshafts and machining centre therefor |
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Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201128016Y (en) * | 2007-12-28 | 2008-10-08 | 中国有色集团沈阳冶金机械有限公司 | Device for processing crankshaft crank |
| CN201267892Y (en) * | 2008-08-19 | 2009-07-08 | 上海惠典机电科技有限公司 | Full-automatic numerical-control device for milling linkage rod flat |
Non-Patent Citations (1)
| Title |
|---|
| JP特开平11-58118A 1999.03.02 |
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| CN102091812A (en) | 2011-06-15 |
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Denomination of invention: Processing technique for heavy crankshaft and shaft part milling frame stations Effective date of registration: 20190227 Granted publication date: 20120912 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: 2019990000162 |
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Date of cancellation: 20210304 Granted publication date: 20120912 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: 2019990000162 |
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Denomination of invention: Processing technology of heavy crankshaft milling stand Effective date of registration: 20210304 Granted publication date: 20120912 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: Y2021990000216 |
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Date of cancellation: 20230320 Granted publication date: 20120912 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: Y2021990000216 |
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Denomination of invention: Processing Technology of Heavy Duty Crankshaft Milling Frame Position Effective date of registration: 20230323 Granted publication date: 20120912 Pledgee: Yucheng Branch of Agricultural Bank of China Ltd. Pledgor: TONGYU HEAVY INDUSTRY Co.,Ltd. Registration number: Y2023980035948 |
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