CN202622077U - Vertical milling machine for accurately machining gear - Google Patents
Vertical milling machine for accurately machining gear Download PDFInfo
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- CN202622077U CN202622077U CN 201220060712 CN201220060712U CN202622077U CN 202622077 U CN202622077 U CN 202622077U CN 201220060712 CN201220060712 CN 201220060712 CN 201220060712 U CN201220060712 U CN 201220060712U CN 202622077 U CN202622077 U CN 202622077U
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Abstract
The utility model provides a vertical milling machine for accurately machining a gear and belongs to the technical field of machining tools. The vertical milling machine comprises a foundation, a machine body with a guide rail, a lifting table, a longitudinal work table, a horizontal work table, a power system, a gear shift mechanism, an electrical apparatus control system, and a power output head which outputs power to a gear cutter hob of a milling gear and a central spindle which drives a workpiece to rotate, so that a strict inner linkage transmission chain ensures the transmission ratio relationship between a main shaft of the milling machine and the gear to be processed, and the workpiece and the gear cutter hob can accurately transmit. A straight toothed spur gear, an involute spline tooth and a chain wheel can be machined, and after a differential mechanism is provided, a helical spur gear can be machined, and a slotting cutter which does not have high requirement on accuracy of a worm gear with a small diameter can be machined. The problem that a spur gear which is machined by a disc milling cutter for the milling machine by a forming method cannot reach the accuracy grade can be solved. The vertical milling machine has the advantages of low cost and can be assembled and disassembled quickly and conveniently, and the vertical milling machines can be used various common vertical milling machines.
Description
Technical field
The utility model relates to a kind of mechanical processing machine, specifically, but particularly relates to a kind of vertical knee-type milling machine of precision Machining of Gear.
Background technology
The common vertical knee-type milling machine that generally uses at present generally comprises the lathe bed, lifting platform of base, band guide rail, vertically workbench, horizontal work level, power and electric control system, lubricated and coolant circulation system etc., and this vertical knee-type milling machine has that versatility is strong, the characteristics of scope of application broad.
But with this vertical knee-type milling machine Machining of Gear the time, can only use the form cutting Machining of Gear,, realize processing gear tooth slot with the processing of disk-form finger-type form cutter.But since the relation of the gearratio between milling machine spindle and the processed gear do not have strictness in get in touch driving-chain; Can't realize generate processing; Can only adopt the artificial dividing head handle that rotates to carry out calibration, process a teeth groove after calibration once, and then process next teeth groove; So circulate repeatedly, until processing all teeth groove.
Owing to there being reasons such as the bigger original reason error and the error of division in the form cutting Machining of Gear, the tooth finger cutter that processes forms processing with form cutting.On vertical knee-type milling machine during with forming process Milling Process gear; By the milling machine spindle driven rotary, workbench is lower along the teeth groove square wheel precision of gear through dividing head, support tailstock drive workpiece, the highest grade that also do not reach; It is very big that circumference is measured the common normal error, is difficult to process qualified master gear.
The utility model content
To the problems referred to above,, add the practical experience of accumulation for many years through searching relevant Gear Processing data in many ways; The utility model provides a kind of vertical knee-type milling machine of precision Machining of Gear; This vertical knee-type milling machine utilized a cover with gear-hobbing machine principle and generating design on end mill with the equipment of hobcutter Machining of Gear, i.e. vertical milling upper rolling tooth accessory device---power delivery is through the utilization of this power delivery; Can realize the processing of straight spur gear, involute spline tooth and sprocket wheel; After increasing a differential mechanism, also can realize the processing of helical gears, can also process the less worm gear of diameter simultaneously.Solved milling machine and processed the difficult problem that spur gear does not reach accuracy class with the disc milling cutter form cutting.
The utility model is realized through following technological means: a kind of vertical knee-type milling machine of precision Machining of Gear comprises base, the lathe bed of being with guide rail, lifting platform, vertical workbench, horizontal work level, dynamical system, gear, electrical apparatus control system; Also comprise the power delivery; This power delivery exports power to gear hob that is used for the milling gear and the mandrel that drives the workpiece rotation simultaneously; Gearratio relation between milling machine spindle and the processed gear is had get in touch driving-chain in strict, realize transmission accurately between workpiece and the gear hob.
The utility model also can be done following improvement:
Said power delivery is accurately controlled the transmission between workpiece and the gear hob through dividing head.
Said power delivery comprises hob arbor, hob rod pull bar, end mill main shaft, active oblique gear, output helical gear; Said hob arbor is contained on the end mill main shaft through the hob rod pull bar, and active oblique gear and gear hob are installed on this hob arbor, said active oblique gear and the engagement of output helical gear; The output helical gear is through output shaft one driving universal joint axle; Cardan axis is through spline housing drive splines axle, and said spline housing is a tubulose, is placed in outside the splined shaft; Splined shaft divides tooth change gear group through output shaft two transmissions, and tooth change gear group was fixed on the divided teeth gear support in said minute; This minute, tooth change gear group was connected with the countershaft one of dividing head, drove the dividing head rotation, dividing head again through and the dividing head tailstock between the workpiece carried secretly in the moving mandrel of fork, heart rotate.
Because it is continuous motion that this processing method is divided tooth and generate,, process the difficult problem that spur gear does not reach accuracy class with the disc milling cutter form cutting thereby solved milling machine so what the accuracy of gear of processing with dish type or finger-type module-milling cutter than milling machine exceeds.
Said active oblique gear is the orthogonal helical gear of a pair of axis with the output helical gear.
Said active oblique gear is 45 ° of helical gears.
Also be provided with countershaft two behind the said dividing head spindle, said countershaft two power transmission shafts connect vertical table feed screw mandrel through feed speed change gear group, constitute the self-acting feed structure, obtain suitable self-acting feed amount, reach the grade roughness.
Said countershaft two is the countershaft with No. 4 Morse's tapers.
Also comprise a bearing that is used to support, said bearing is positioned at dynamic branch head body lower end, and this bearing makes the milling noise reduce, and fineness has obvious improvement.
Compared with prior art, the beneficial effect that the utlity model has:
1) vertical knee-type milling machine of the utility model is that the gear hobbing processing unit (plant) is installed on plain-milling machine; Just can realize the processing of straight spur gear, involute spline tooth and sprocket wheel; Increase a differential mechanism again; Just can realize the processing of helical gears, can also process diameter less worm gear and the not high pinion cutter (, being easy to obtain the pinion cutter relief angle) of required precision simultaneously with this apparatus processing pinion cutter.
2) because in the vertical knee-type milling machine processing method of the utility model; Dividing tooth and generate is continuous motion; So what the accuracy of gear of processing with dish type or finger-type module-milling cutter than milling machine exceeds; And the processed accuracy of gear has mainly depended on the precision of dividing head worm gear pairs, but general dividing head pot wheel pays and all possess very high precision, processes the difficult problem that spur gear does not reach accuracy class thereby solved milling machine with the disc milling cutter form cutting.
3) vertical knee-type milling machine of the utility model can replace the part work of gear-hobbing machine, and is also more flexible than gear-hobbing machine sometimes.
4) adopt the vertical knee-type milling machine of the utility model to test processing; Gear that some sizes are less and worm gear; Its machining accuracy, production efficiency are compared machining accuracy with special-purpose Machining of Gear equipment Y3154E gear-hobbing machine, production efficiency is very nearly the same, has received effect preferably.
5) the vertical knee-type milling machine cost of the utility model is low; Make a cover and be applied to the gear hobbing processing unit (plant) on the X6132W milling machine; Its cost is no more than 1000 yuan, and these gear hobbing processing unit (plant) mounting or dismounting are convenient and swift, and the machine tool precision is had no influence; Remedied the problem of equipment shortcoming, saved and bought Gear Processing special equipment fund hundreds of thousands unit.
Description of drawings
Fig. 1 is the processing unit (plant) structural representation of the vertical knee-type milling machine processing column spur gear of the utility model;
Fig. 2 is the vertical knee-type milling machine gear hobbing processing unit (plant) rotation system sketch map of the utility model;
Fig. 3 is countershaft two sketch mapes with No. 4 Morse's tapers;
Fig. 4 is the active oblique gear sketch map;
Fig. 5 is a power delivery main body sketch map;
Fig. 6 is a power delivery general assembly sketch map;
Wherein: 1. gear hob; 2. active oblique gear; 3. output helical gear; 4. power delivery; 5. hob rod pull bar; 6. dynamic branch head body; 7. output shaft one; 8. cardan axis; 9. spline housing; 10. splined shaft; 11. output shaft two; 12. divided teeth gear support; 13. divide tooth change gear group; 14. vertical table feed change gear; 15. vertical table feed screw mandrel; 16. feed change gear support; 17. vertical workbench; 18. dividing head; 19. fork; 20 hearts folder; 21. workpiece; 22. hob arbor; 23. bearing; 24. mandrel; 25. dividing head tailstock; 26. countershaft one; 27. countershaft two; 28.4 number Morse's taper; 29. end mill main shaft; 30. power delivery main body; 31. spacer ring; 32. square key; 33. packing ring; 34. bearing cover; 35. stay-bolt;
The specific embodiment
Below in conjunction with accompanying drawing and embodiment the utility model is described further, but the utility model is not caused any restriction.
Shown in Fig. 1-6, a kind of vertical knee-type milling machine of precision Machining of Gear comprises base, the lathe bed of being with guide rail, lifting platform, vertical workbench 17, horizontal work level, dynamical system, gear, electrical apparatus control system; Also comprise power delivery 4, this power delivery 4 exports power to gear hob 1 that is used for the milling gear and the mandrel 24 that drives workpiece 21 rotations simultaneously, realizes transmission accurately between workpiece and the gear hob 1.
Said power delivery 4 comprises hob arbor 22, hob rod pull bar 5, end mill main shaft, active oblique gear 2, output helical gear 3; Said hob arbor 22 is contained on the end mill main shaft through hob rod pull bar 5; Active oblique gear 2 and gear hob 1 are installed on this hob arbor 22; Said active oblique gear 2 and 3 engagements of output helical gear, output helical gear 3 is through output shaft one 7 driving universal joint axles 8, and cardan axis 8 is through spline housing 9 drive splines axles 10; Said spline housing 9 is a tubulose, is placed in outside the splined shaft 10; Splined shaft 10 divides tooth change gear group 13 through output shaft 2 11 transmissions, and tooth change gear group 13 was fixed on the divided teeth gear support 12 in said minute; This minute, tooth change gear group 13 was connected with the countershaft 1 of dividing head 18, drove dividing head 18 rotations, dividing head 18 again through and dividing head tailstock 25 between the workpiece 21 that drives on the mandrels 24 of fork 19, heart folder 20 rotate.
Said active oblique gear 2 is the orthogonal helical gear of a pair of axis with output helical gear 3.
Because splined shaft 10 can free telescopic moving in spline housing 9; Therefore when milling machine table is made vertical straight line and is moved; Just can drive the divided teeth gear support 12 that is installed on the dividing head 18 and move, realize the axially-movable between workpiece and the gear hob with vertical workbench 17 straight lines.Because the axis of hobboing cutter is not vertical with the axis of workpiece, need to tilt an angle again, this angle is rotated the milling head angle through vertical knee-type milling machine and is solved.Like this, the direction of motion of workbench and milling arbor out of plumb, the malalignment between output shaft 1 and the output shaft 2 11 is regulated by cardan axis 8, can not produce movement interference.
And because this processing method is divided tooth and generate is continuous motion, so what the accuracy of gear of processing with dish type or finger-type module-milling cutter than milling machine exceeds, processes the difficult problem that spur gear does not reach accuracy class thereby solved milling machine with the disc milling cutter form cutting.
Said active oblique gear 2 is 45 ° of helical gears.
Also be provided with countershaft 2 27 behind said dividing head 18 main shafts; Said countershaft 2 27 power transmission shafts connect vertical table feed screw mandrel 15 through vertical table feed change gear 14; Constitute the self-acting feed structure, obtain suitable self-acting feed amount, reach the grade roughness.
Also comprise a bearing that is used to support 23, said bearing 23 is positioned at dynamic branch head body 6 lower ends, and this bearing 23 makes the milling noise reduce, and fineness has obvious improvement.
The vertical knee-type milling machine workflow of a kind of precision Machining of Gear of the utility model is: at first workpiece is fixed on the mandrel 24, calculates the gearratio of adjusting branch tooth change gear group, start power supply; The end mill main shaft is rotated; Drive hob arbor 22 and rotate, thereby gear hob 1 and active oblique gear 2 are rotated, and 3 transmissions of active oblique gear 2 engagement output helical gears; Output helical gear 3 is again through output shaft one 7 driving universal joint axles 8; Cardan axis 8 is through spline housing 9 drive splines axles 10, and splined shaft 10 divides tooth change gear group 13 through output shaft 2 11 transmissions, and the gear in this minute tooth change gear group 13 is connected with the countershaft 1 of dividing head 18; Drive dividing head 18 rotations; Dividing head 18 again through and dividing head tailstock 25 between the workpiece 21 that drives on the mandrels 24 of fork 19, heart folder 20 rotate, finally reach and export power to the gear hob 1 that is used for the milling gear and the purpose that drives the mandrel 24 that workpiece 21 rotates simultaneously, realize transmission accurately between workpiece and the gear hob 1.Computational methods when using above-mentioned vertical knee-type milling machine to carry out the gear milling are following:
1, the meter grate that divides the tooth change gear
Divide tooth change gear group to be made up of four gears, their gearratio i is confirmed by the number of teeth z worker of a number k of gear hob, processed gear, the gearratio of dividing head, and i=1:40, then the gearratio of gear changing group does
Divide the tooth formula: the oblique a/b * c/d of 1 cutter * i * i branch=k/z
In the formula:
1 cutter, one hobboing cutter one changes,
The oblique helical gear speed ratio of i is got i tiltedly=1
A, b, c, d one divided teeth gear,
I divides one division head speed ratio, general i branch=1/40,
K one gear hob head number,
The z one processed number of gears,
Substitution is later to get: a/b * c/d=40 * k/z
When the gear of the different numbers of teeth of processing, according to the gearratio of gear changing group Z worker's selection of gear changing.
2, the calculating of feed change gear
Realize vertical workbench auto-feed through feed gear changing group connection lengthwise to the workbench vertical pole with making driving shaft in the equal axle insertion dividing head spindle taper hole of a band tapering and dividing head spindle taper hole.
Feed formula: 1 * t=s s/t=1/6
In the formula
1 worker, one processed gear one changes
A, b, c, d one feed change gear,
The vertical Si Defend of t one milling machine table, general t=6
S one feed.
Substitution is later to get: a/b * c/d=s/t
Above content is the further explain that combines concrete preferred implementation that the utility model is done, and can not assert that the practical implementation of the utility model is confined to these explanations.For the those of ordinary skill of technical field under the utility model, under the prerequisite that does not break away from the utility model design, can also make some simple deduction or replace, all should be regarded as belonging to the protection domain of the utility model.
Claims (8)
1. the vertical knee-type milling machine of a precision Machining of Gear comprises base, the lathe bed of being with guide rail, lifting platform, vertical workbench (17), horizontal work level, dynamical system, gear, electrical apparatus control system; It is characterized in that: also comprise power delivery (4); This power delivery (4) exports power simultaneously to the gear hob (1) that is used for the milling gear and drives the mandrel (24) that workpiece (21) rotates, and realizes transmission accurately between workpiece and the gear hob (1).
2. the vertical knee-type milling machine of a kind of precision Machining of Gear according to claim 1 is characterized in that: said power delivery (4) is accurately controlled the transmission between workpiece and the gear hob (1) through dividing head (18).
3. the vertical knee-type milling machine of a kind of precision Machining of Gear according to claim 2; It is characterized in that: said power delivery (4) comprises hob arbor (22), hob rod pull bar (5), end mill main shaft, active oblique gear (2), output helical gear (3); Said hob arbor (22) is contained on the end mill main shaft through hob rod pull bar (5); Active oblique gear (2) and gear hob (1) are installed on this hob arbor (22); Said active oblique gear (2) and output helical gear (3) engagement, output helical gear (3) is through output shaft one (7) driving universal joint axle (8), and cardan axis (8) is through spline housing (9) drive splines axle (10); Said spline housing (9) is a tubulose, is placed in outside the splined shaft (10); Splined shaft (10) divides tooth change gear group (13) through output shaft two (11) transmissions, said minute tooth change gear group (13) be fixed on the divided teeth gear support (12); This minute tooth change gear group (13) is connected with the countershaft one (26) of dividing head (18); Drive dividing head (18) rotation, dividing head (18) again through and dividing head tailstock (25) between the workpiece (21) that drives on the mandrels (24) of fork (19), heart folder (20) rotate.
4. the vertical knee-type milling machine of a kind of precision Machining of Gear according to claim 3 is characterized in that: said active oblique gear (2) is the orthogonal helical gear of a pair of axis with output helical gear (3).
5. the vertical knee-type milling machine of a kind of precision Machining of Gear according to claim 4 is characterized in that: said active oblique gear (2) is 45 ° of helical gears.
6. the vertical knee-type milling machine of a kind of precision Machining of Gear according to claim 3; It is characterized in that: also be provided with countershaft two (27) behind said dividing head (18) main shaft, said countershaft two (27) power transmission shafts connect vertical table feed screw mandrel (15) through feed speed change gear group (14).
7. the vertical knee-type milling machine of a kind of precision Machining of Gear according to claim 6 is characterized in that: said countershaft two (27) is the countershaft with No. 4 Morse's tapers.
8. according to the vertical knee-type milling machine of each described a kind of precision Machining of Gear of claim 1-7, it is characterized in that: also comprise a bearing that is used to support (23), said bearing (23) is positioned at dynamic branch head body (6) lower end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220060712 CN202622077U (en) | 2012-02-23 | 2012-02-23 | Vertical milling machine for accurately machining gear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220060712 CN202622077U (en) | 2012-02-23 | 2012-02-23 | Vertical milling machine for accurately machining gear |
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| Publication Number | Publication Date |
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| CN202622077U true CN202622077U (en) | 2012-12-26 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220060712 Withdrawn - After Issue CN202622077U (en) | 2012-02-23 | 2012-02-23 | Vertical milling machine for accurately machining gear |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554361A (en) * | 2012-02-23 | 2012-07-11 | 广东岭南现代技工学校 | Vertical milling machine for precisely processing gear |
| CN104028845A (en) * | 2014-07-03 | 2014-09-10 | 黄娟娟 | Use method for gear machining equipment |
| CN104028846A (en) * | 2014-07-03 | 2014-09-10 | 张建锋 | Gear milling mechanism |
| CN104096920A (en) * | 2014-07-03 | 2014-10-15 | 张建锋 | Use method of gear processing system |
| CN104096918A (en) * | 2014-07-03 | 2014-10-15 | 杨健儿 | Gear processing system |
| CN108581075A (en) * | 2018-05-10 | 2018-09-28 | 重庆润跃机械有限公司 | Processing unit (plant) for gear |
-
2012
- 2012-02-23 CN CN 201220060712 patent/CN202622077U/en not_active Withdrawn - After Issue
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554361A (en) * | 2012-02-23 | 2012-07-11 | 广东岭南现代技工学校 | Vertical milling machine for precisely processing gear |
| CN104028845A (en) * | 2014-07-03 | 2014-09-10 | 黄娟娟 | Use method for gear machining equipment |
| CN104028846A (en) * | 2014-07-03 | 2014-09-10 | 张建锋 | Gear milling mechanism |
| CN104096920A (en) * | 2014-07-03 | 2014-10-15 | 张建锋 | Use method of gear processing system |
| CN104096918A (en) * | 2014-07-03 | 2014-10-15 | 杨健儿 | Gear processing system |
| CN104028846B (en) * | 2014-07-03 | 2015-05-27 | 海安县申菱电器制造有限公司 | Gear milling mechanism |
| CN104096918B (en) * | 2014-07-03 | 2016-01-27 | 浙江师范大学 | A kind of Gear Processing system |
| CN104096920B (en) * | 2014-07-03 | 2016-03-09 | 广州市钜浪机械设备有限公司 | A kind of using method of Gear Processing system |
| CN104028845B (en) * | 2014-07-03 | 2016-04-13 | 福建省神悦铸造股份有限公司 | A kind of using method of gear machining apparatus |
| CN108581075A (en) * | 2018-05-10 | 2018-09-28 | 重庆润跃机械有限公司 | Processing unit (plant) for gear |
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Legal Events
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20121226 Effective date of abandoning: 20140226 |
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| RGAV | Abandon patent right to avoid regrant |