CN103801945B - Numerical control milling crankshaft key slot fixture - Google Patents
Numerical control milling crankshaft key slot fixture Download PDFInfo
- Publication number
- CN103801945B CN103801945B CN201210437033.3A CN201210437033A CN103801945B CN 103801945 B CN103801945 B CN 103801945B CN 201210437033 A CN201210437033 A CN 201210437033A CN 103801945 B CN103801945 B CN 103801945B
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- bearing holder
- housing
- cover
- bearing
- endoporus
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q3/00—Devices holding, supporting, or positioning work or tools, of a kind normally removable from the machine
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q2703/00—Work clamping
- B23Q2703/02—Work clamping means
- B23Q2703/10—Devices for clamping workpieces of a particular form or made from a particular material
- B23Q2703/105—Devices for clamping workpieces of a particular form or made from a particular material for clamping a crankshaft
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Milling Processes (AREA)
Abstract
A kind of numerical control milling crankshaft key slot fixture, processes crankshaft key slot for Digit Control Machine Tool. Milling cutter clamping is on end mill head spindle bearing holder, and flange adapter sleeve upper surface gapless is pressed on end mill head lathe bed, and flange adapter sleeve is welded on fixed support; The top fixed head of milling cutter fixing lower is connected with fixed support, in top fixed head, bearing holder (housing, cover) is housed, thrust ball bearing is equipped with in bearing holder (housing, cover) upper end, top endoporus and top tight fit, lower surface is pressed on bearing holder (housing, cover) shoulder, thrust ball bearing bottom endoporus and top matched in clearance, cylindrical coordinates with bearing holder (housing, cover) endoporus; Needle bearing is housed in bearing holder (housing, cover), push pedal small stair cylindrical and bearing holder (housing, cover) inner circle matched in clearance, push pedal end face and bearing holder (housing, cover) compress, and bolt guide plate is fixed on top fixed head, and interior hexagonal cylindrical bolt screws in bolt guide plate; Apron is housed on top. Machining accuracy of the present invention and efficiency are high, and crudy is stable, and production cost and labour intensity are low, and production environment and processing flexibility are good.
Description
Technical field
The present invention relates to machinery manufacturing technology field, is a kind of fixture for milling that adopts Digit Control Machine Tool to process crankshaft key slot specifically.
Background technology
The milling of engine crankshaft key slot is the key project in Crankshaft Machining process, quite complicated and strict for the technical requirement of keyway. Adopt the new technology of Digit Control Machine Tool machining crankshafts keyway also in the same industry, not occur. At present, most domestic Production of Crankshaft producer still adopts normal horizontal miller machining crankshafts keyway, but has following defect.
1, adopt plain-milling machine machining accuracy to be difficult to ensure, crudy is unstable, is not suitable for the processing of the Woodruff key slots and keyways of batch, many kinds bent axle, bad adaptability.
2, production efficiency is low, and labour intensity is large, and productive temp is slow.
3, need before machining crankshafts, adjust the depth of cut, completely moving adjustment of armrest ensures keyway position degree and symmetry at every turn, adjusts loaded down with trivial detailsly, and equipment self ensures ability, and for keyway deep processing, need to increase limit switch.
4, kerosene, the unshielded cover of iron filings are isolated, lathe surrounding environment is produced and polluted, production environment is poor.
Summary of the invention
For overcoming existing plain-milling machine to the deficiency in crankshaft key slot processing technology, goal of the invention of the present invention is to provide one
Kind of numerical control milling crankshaft key slot fixture, the object of, high accuracy machining crankshafts keyway convenient and swift to realize.
For achieving the above object, of the present invention for milling cutter jump ring, collet clamping on end mill head spindle bearing holder, the endoporus of the flange adapter sleeve of milling cutter upper end and end mill head spindle bearing holder cylindrical interference fits, flange adapter sleeve upper surface is pressed on end mill head lathe bed by screw gapless through spindle bearing holder mounting flange, and flange adapter sleeve is welded on fixed support; The lower end of milling cutter is top fixture, the top fixed head of described fixture is connected with fixed support by hexagon socket head cap screw, in top fixed head, bearing holder (housing, cover) is housed, thrust ball bearing is equipped with in the upper end of bearing holder (housing, cover), the endoporus on thrust ball bearing top and top tight fit, lower surface is pressed on the shoulder of bearing holder (housing, cover), the endoporus of thrust ball bearing bottom and top matched in clearance, and the cylindrical of thrust ball bearing coordinates with the endoporus of bearing holder (housing, cover); Two needle bearings are housed, the cylindrical of needle bearing and bearing holder (housing, cover) tight fit, needle roller and top matched in clearance in bearing holder (housing, cover); Push pedal small stair cylindrical and bearing holder (housing, cover) inner circle matched in clearance, push pedal end face and bearing holder (housing, cover) compress, and bolt guide plate is fixed on top fixed head, and interior hexagonal cylindrical bolt screws in bolt guide plate, and hex nut is locked on interior hexagonal cylindrical bolt; Apron is housed on top.
The present invention compared with prior art, has the following advantages.
1, machining accuracy is high, crudy is stable, production cost is low: the minimum amount of movement of the cutter of Digit Control Machine Tool control and workbench (pulse equivalency) can generally reach 0.0001mm, and digital control system can auto-compensation feeding driving-chain backlass and Error of leadscrew pitch, make Digit Control Machine Tool reach very high machining accuracy; In addition, the accuracy of manufacture of Digit Control Machine Tool is high, and its automatic processing mode has been avoided the producer's manual operation error, and therefore, good with the dimensional uniformity of a collection of workpiece, product percent of pass is high, and crudy is stable, has reduced percent defective, saves direct operating cost.
2, production efficiency is high: structure of numerically controlled machine-tool good rigidly, allow to carry out the high-rate cutting of large cutting data, larger than machine tool from the excursion of the speed of mainshaft and the amount of feeding, therefore adding the optional optimized cutting consumption of using in man-hour, improve the stock-removing efficiency of Digit Control Machine Tool, saved the time kept in reserve; And when Digit Control Machine Tool can be saved router, reduce adjustment, processing and Check-Out Time. Compared with machine tool, the production efficiency of Digit Control Machine Tool can improve 2-3 times.
3, productive temp is high: Digit Control Machine Tool automaticity is high, can greatly alleviate workman's labour intensity, reduces operational personnel, is conducive to modern management simultaneously, can be to more senior manufacturing system development.
4, production environment is good: Digit Control Machine Tool is adding man-hour, and protective cover is closed, and has chip removal and oil drain passage, can not pollute lathe surrounding environment.
5, processing as flexible: in the time that product changes, only need to change fixture and cutter, adjust and work out new procedure.
6, labour intensity is low: in the time of bent axle feeding, discharge, lathe moves to Digit Control Machine Tool in front of the door by bent axle automatically by programming, and only needs Push switch, and lathe self-return is to processing stations and process, and gets back to again the lathe doorway place of being convenient to loading and unloading after finishing.
Brief description of the drawings
Fig. 1 structure diagram of the present invention.
Fig. 2 is the milling cutter of Fig. 1 and the enlarged drawing of top fixture.
Detailed description of the invention
As shown in Figure 1 and Figure 2, milling cutter 5 use jump rings 17, collet 18 clampings are on end mill head spindle bearing holder 4, the endoporus of the flange adapter sleeve 20 of milling cutter 5 upper ends and numerical control vertical milling head spindle bearing holder 4 cylindrical interference fits, can play the effect of pin-and-hole location, ensure the coaxial accuracy of fixture central axis and end mill head main shaft; Flange adapter sleeve 20 upper surfaces are pressed on end mill head lathe bed 1 through spindle bearing holder mounting flange 3 use screw one 2 gaplesss, flange adapter sleeve 20 is welded on fixed support 19, ensured the fastness that milling cutter is installed, and ensure fixed support 19 numerical control vertical milling machine table just after; Milling cutter 5 is according to the needs of Crankshaft Machining, be designed to special-purpose milling cutter, ensure not interfere with crankshaft key slot axle journal in the time of keyseat, milling cutter 5, when with jump ring 17 clamping, has Step Shaft to position, and ensures in the time that top 6 hold out against, axially can be spacing, milling cutter 5 does not need to change the axial location of milling cutter 5 after installing, ensure that each tool changing can overlap with tool changing front position, and jump ring 17 adopts the collet 18 of standard to carry out clamping.
The lower end of milling cutter 5 is top 6 fixture, the top fixed head 15 of described fixture is connected with fixed support 19 by hexagon socket head cap screw, in top fixed head 15, bearing holder (housing, cover) 14 is housed, thrust ball bearing 7 is equipped with in the upper end of bearing holder (housing, cover) 14, the endoporus on thrust ball bearing 7 tops and top 6 tight fits, thrust ball bearing 7 tops can be rotated with top 6 rotation, lower surface is pressed on the shoulder of bearing holder (housing, cover) 14, the endoporus of thrust ball bearing 7 bottoms and top 6 matched in clearance, in the time that top 6 rotate, thrust ball bearing 7 maintains static below, the cylindrical of thrust ball bearing 7 bottoms and bearing holder (housing, cover) 14 endoporus matched in clearance or tight fit all can, top 6 rotate time and bearing holder (housing, cover) 14 can not interfere, in order to ensure top 6 installation accuracy, two needle bearings 8 are housed in bearing holder (housing, cover) 14, the cylindrical of needle bearing 8 and bearing holder (housing, cover) 14 tight fits, needle roller and top 6 matched in clearance can ensure that top 6 freely rotate and installation accuracy so simultaneously, push pedal 9 small stair cylindricals and bearing holder (housing, cover) 14 inner circle matched in clearance, push pedal 9 end faces and bearing holder (housing, cover) 14 use screws 2 10 compress, bolt guide plate 13 is fixed on top fixed head 15, interior hexagonal cylindrical bolt 11 screws in bolt guide plate 13, in the time that push pedal 9 is promoted by interior hexagonal cylindrical bolt 11, 9 push shaft bearing sleeves 14 of push pedal, not ejection point 6, more can not promote top fixed head 15, when in top 6 situations about having held out against, lock with hex nut 12, in the time that bearing holder (housing, cover) 14 moves up, promote thrust ball bearing 7 and make top 6 axial compression milling cutters 5, ensure to be unlikely to be shaken to fluff in milling cutter 5 process, apron 16 is housed on top 6, overlaps apron 16 on top 6 and quite play a part protective cover, can protect toply 6, to prevent that iron filings have entered bearing inside in the process of keyseat, affect top 6 normal rotation and top 6 installation accuracies.
When adopting Digit Control Machine Tool to add man-hour to crankshaft key slot, only need withstand milling cutter 5 by top 6 in fixture.
Claims (2)
1. a numerical control milling crankshaft key slot fixture, it is characterized in that: milling cutter (5) jump ring (17), collet (18) clamping are on end mill head spindle bearing holder (4), the endoporus of the flange adapter sleeve (20) of milling cutter (5) upper end and end mill head spindle bearing holder (4) cylindrical interference fits, it is upper that flange adapter sleeve (20) upper surface is pressed on end mill head lathe bed (1) through spindle bearing holder mounting flange (3) by screw (2) gapless, and flange adapter sleeve (20) is welded on fixed support (19), the lower end of milling cutter (5) is the fixture of top (6), the top fixed head (15) of described fixture is connected with fixed support (19) by hexagon socket head cap screw, bearing holder (housing, cover) (14) is housed in top fixed head (15), thrust ball bearing (7) is equipped with in the upper end of bearing holder (housing, cover) (14), the endoporus on thrust ball bearing (7) top and top (6) tight fit, lower surface is pressed on the shoulder of bearing holder (housing, cover) (14), the endoporus of thrust ball bearing (7) bottom and top (6) matched in clearance, the cylindrical of thrust ball bearing (7) coordinates with bearing holder (housing, cover) (14) endoporus, two needle bearings (8) are housed, the cylindrical of needle bearing (8) and bearing holder (housing, cover) (14) tight fit, needle roller and top (6) matched in clearance in bearing holder (housing, cover) (14), push pedal (9) small stair cylindrical and bearing holder (housing, cover) (14) inner circle matched in clearance, push pedal (9) end face and bearing holder (housing, cover) (14) compress with screw two (10), bolt guide plate (13) is fixed on top fixed head (15), interior hexagonal cylindrical bolt (11) screws in bolt guide plate (13), and hex nut (12) is locked on interior hexagonal cylindrical bolt (11).
2. numerical control milling crankshaft key slot fixture according to claim 1, is characterized in that: apron (16) is housed on top (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210437033.3A CN103801945B (en) | 2012-11-06 | 2012-11-06 | Numerical control milling crankshaft key slot fixture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210437033.3A CN103801945B (en) | 2012-11-06 | 2012-11-06 | Numerical control milling crankshaft key slot fixture |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103801945A CN103801945A (en) | 2014-05-21 |
| CN103801945B true CN103801945B (en) | 2016-05-04 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201210437033.3A Active CN103801945B (en) | 2012-11-06 | 2012-11-06 | Numerical control milling crankshaft key slot fixture |
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| CN (1) | CN103801945B (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104028822A (en) * | 2014-06-11 | 2014-09-10 | 重庆强尔弘机械制造有限公司 | Milling machine cutter tooling |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2889576Y (en) * | 2006-04-14 | 2007-04-18 | 自贡长征机床有限责任公司 | Main axle line spatial multiple-position automatic slew milling head |
| CN101288940A (en) * | 2008-06-05 | 2008-10-22 | 大连华凯机床有限公司 | Machining center hydraulic cam linkage tool-changing mechanism |
| CN202894804U (en) * | 2012-11-06 | 2013-04-24 | 襄樊福达东康曲轴有限公司 | Fixture for numerical control milling of crankshaft key grooves |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2003300107A (en) * | 2002-04-08 | 2003-10-21 | Okuma Corp | Machine tool |
-
2012
- 2012-11-06 CN CN201210437033.3A patent/CN103801945B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2889576Y (en) * | 2006-04-14 | 2007-04-18 | 自贡长征机床有限责任公司 | Main axle line spatial multiple-position automatic slew milling head |
| CN101288940A (en) * | 2008-06-05 | 2008-10-22 | 大连华凯机床有限公司 | Machining center hydraulic cam linkage tool-changing mechanism |
| CN202894804U (en) * | 2012-11-06 | 2013-04-24 | 襄樊福达东康曲轴有限公司 | Fixture for numerical control milling of crankshaft key grooves |
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| Publication number | Publication date |
|---|---|
| CN103801945A (en) | 2014-05-21 |
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| Date | Code | Title | Description |
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| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C53 | Correction of patent for invention or patent application | ||
| CB02 | Change of applicant information |
Address after: 441004 9 Xinxing Road, industrial park, hi tech Zone, Hubei, Xiangfan Applicant after: Xiangyang Fuda Dongkang Crankshaft Co., Ltd. Address before: 441004 9 Xinxing Road, industrial park, hi tech Zone, Hubei, Xiangfan Applicant before: Xiangfan Fuda Dongkang Crankshaft Co., Ltd. |
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| COR | Change of bibliographic data |
Free format text: CORRECT: APPLICANT; FROM: XIANGFAN FUDADONGKANG CRANKSHAFT CO., LTD. TO: XIANGYANG FUDADONGKANG CRANKSHAFT CO., LTD. |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |