CN201320629Y - Milling head for milling internal keyway - Google Patents
Milling head for milling internal keyway Download PDFInfo
- Publication number
- CN201320629Y CN201320629Y CNU2008203038119U CN200820303811U CN201320629Y CN 201320629 Y CN201320629 Y CN 201320629Y CN U2008203038119 U CNU2008203038119 U CN U2008203038119U CN 200820303811 U CN200820303811 U CN 200820303811U CN 201320629 Y CN201320629 Y CN 201320629Y
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- milling
- milling head
- cutter
- bevel gear
- spur gear
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Abstract
The utility model relates to a milling head for milling an internal keyway, which is installed on the lower end face of main spindle boxes of machine tools. The milling head is characterized by comprising a shell, a drive shaft, a driving bevel gear, a driven bevel gear, a spline shaft, a driving spur gear, a driven spur gear, a milling head spindle and a milling cutter. The milling head is fixed on the lower end face of the main spindle box of a machine tool by the shell; the lower end of the shell is connected with the end cover; the upper end of the drive shaft in the shell is locked with the end-face key of the machine tool spindle; the lower end of the drive shaft is connected with the spline of the driving bevel gear; the driving bevel gear meshes with the driven bevel gear; the driven bevel gear is connected with the spline of the spline shaft; the middle part of the spline shaft is connected with the spline of the driving spur gear which meshes with the driven spur gear; the driven spur gear is connected with the spline of milling head spindle; and a milling cutter is fixed on the milling head spindle. The milling head for milling of internal keyways improves the speed of processing internal keyways of large-scale machined parts, lowers the labor intensity and has a low modification cost.
Description
Technical field
The utility model relates to a kind of milling head, relates in particular to a kind of milling head that is used for the internal keyway milling.
Background technology
" key connecting " is one of extensive connecting mode that adopts of machine components, the keyway especially processing of internal keyway is also quite ripe, planing is arranged usually, slotting, multiple processing modes such as broaching and Wire EDM, and the lathe and the cutter that adapt to are with it arranged all, but the processing of the keyway of some part all is difficult to adapt to above processing, big such as volume, the internal keyway difficulty of processing of the part that weight is heavier is bigger, expense is higher, some processing method is as digging, insert again difficulty and reach quality requirement, lifting an example explanation, is three kinds of large-scale workpiece end view drawings with internal keyway as shown in Figure 1.As adopt planing or slotting technology, and process internal keyway about 2.5 hours/part actual hours of above-mentioned three kinds of large-scale workpieces, also be difficult to satisfy quality requirement to operative employee's specification requirement is higher, fatigue strength is bigger; As processing with Broaching Technology, quality is reliable, but the parts fixation difficulty, with length is that standard broaching tool when broaching of 1520mm is dark because of the broaching tool one stroke can only cut 2.48mm, need return multiple 8 cuttings and just can finish, the about 40 minutes/part of machining period, labour intensity is also big.This class workpiece also is not suitable for electric machining process processing because of the reason of machine tool and cost, if bigger heavier workpiece, with the more difficult processing of conventional method.Therefore provide a kind of speed, low internal keyway processing equipment of reduction labour intensity while improvement cost that had both improved the processing internal keyway to become current urgent problem.
The utility model content
The purpose of this utility model provides a kind of milling head that is used for the internal keyway milling, can effectively address the above problem.
The technical solution adopted in the utility model is:
A kind of milling head that is used for the internal keyway milling, be installed in the lathe headstock lower surface, described milling head comprises housing, power transmission shaft, driving bevel gear, passive bevel gear, splined shaft, the active spur gear, passive spur gear, milling head main shaft and milling cutter, described milling head is fixed on the lathe headstock lower surface by housing, the lower end of described housing is connected with end cap, power transmission shaft upper end in the described housing fastens with the machine tool chief axis straight end-face key, described power transmission shaft lower end is connected with the driving bevel gear spline, described driving bevel gear and the engagement of passive bevel gear, described passive bevel gear is connected with the splined shaft spline, the middle part of described splined shaft is connected with active spur gear spline, described active spur gear and the engagement of passive spur gear, described passive spur gear is connected with the milling head main spindle multiple spline, is fixed with milling cutter on the described milling head main shaft.
Described milling head main shaft becomes 90 ° to intersect with the axial line of power transmission shaft.
Described milling cutter comprises cutter spindle and cutter blade, has the hole on the cutter spindle of described milling cutter, and described cutter spindle passes the milling head main shaft, and described milling head main shaft side is provided with screw, and described screw is fixed on milling cutter on the milling head main shaft by the hole.
The left-hand end opening of described housing.
Described cutter blade is fixed on the cutter spindle in the milling head main shaft outside, close contact between described milling head main shaft and the cutter blade.
The hole of described cutter spindle is the hole with Morse's taper.
Described cutter blade is the fine-tooth cutter sheet of six teeth.
Described cutter blade is straight-tooth cutter sheet or helical tooth cutter sheet.
Milling head of the present utility model is fixed on the lathe headstock lower surface by housing, the lower end of described housing is connected with end cap, power transmission shaft upper end in the described housing fastens with the machine tool chief axis straight end-face key, described power transmission shaft lower end is connected with the driving bevel gear spline, described driving bevel gear and the engagement of passive bevel gear, described passive bevel gear is connected with the splined shaft spline, the middle part of described splined shaft is connected with active spur gear spline, described active spur gear and the engagement of passive spur gear, described passive spur gear is connected with the milling head main spindle multiple spline, be fixed with milling cutter on the described milling head main shaft, described milling head main shaft becomes 90 ° to intersect with the axial line of power transmission shaft.Said structure can reach three purposes: the one, and machine tool chief axis rotatablely moved around vertical axis to be converted milling cutter to and rotatablely moves around horizontal axis; The 2nd, milling cutter is put in the workpiece hole; The 3rd, give milling cutter with the torque drive of machine tool chief axis, thereby finish the internal keyway milling of workpiece.This structure adopts automatic machinery processing internal keyway, has avoided manpower processing, and labour intensity obviously descends, and has improved operating efficiency, and is less demanding to operative employee's technical merit.
Described milling cutter comprises cutter spindle and cutter blade, have the hole on the cutter spindle of described milling cutter, described cutter spindle passes the milling head main shaft, described milling head main shaft side is provided with screw, and described screw is fixed on milling cutter on the milling head main shaft by the hole, and described cutter blade is fixed on the cutter spindle in the milling head main shaft outside, close contact between described milling head main shaft and the cutter blade, do not have neck between cutter blade and cutter spindle, shortened length overall, strengthened rigidity.
The hole of described cutter spindle is the hole with Morse's taper, and this hole is easier is strained by screw.
Described cutter blade is the fine-tooth cutter sheet of six teeth, and described cutter blade is straight-tooth cutter sheet or helical tooth cutter sheet, said structure milling cutter good rigidity, and the effect of the large-scale workpiece internal keyway of milling is very good.
The utility model has the advantages that the speed, the reduction labour intensity that have improved machining large workpiece internal keyway, improvement cost is low simultaneously.More specifically, its advantage is:
1, work efficiency significantly improves: be example with the said workpiece, as milling speed 50.27mm/min, during feed speed 28mm/min, machining period is 8 a minutes/part, improves 18 times of work efficiency than inserting, planing, and improves 4 times than broaching.
2, labour intensity obviously descends: insert, the operative employee wants constantly manually feed during planing, also will divide thick, fine finishining, repeated measurement; During broaching workpiece loading and unloading and repeatedly the broaching repeatedly all gruelling.
3, less demanding to operative employee's technical merit: convenient because of clamping workpiece, the reliable machine operation of crudy is simple, and it is minimum that this structure requires operative employee's technical merit than aforementioned conventional technology.
4, relevant equipment of the present utility model is uncomplicated, and it is best to join the special purpose machine tool effect, will have now horizontal or the vertical knee-type milling machine transformation also can realize.
5, the utility model structure can also develop in order to specific use such as multiple-grooved, special-shaped groove in the hole of the large-scale workpiece of milling.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is described in further detail.
Fig. 1 is three kinds of large-scale workpiece end view drawings with internal keyway.
Fig. 2 structural representation of the present utility model.
Fig. 3 is a position view of the present utility model.
Fig. 4 is the utility model milling cutter construction schematic diagram.
Fig. 5 is the left view of Fig. 4.
Wherein: 1, housing, 2, machine tool chief axis, 3, power transmission shaft, 4, spline, 5, driving bevel gear, 6, passive bevel gear, 7, splined shaft, 8, spur gear initiatively, 9, passive spur gear, 10, screw, 11, the milling head main shaft, 12, end cap, 13, milling cutter, 14, mill principal axis, 15 cutter blades, 16, main spindle box, 17, milling head, 18, workbench, 19, base, 20, column, 21, electric box, 22, feed box, 23, cutter spindle, 24, hole, 25, workpiece, 26, internal keyway.
The specific embodiment
As shown in Figure 1, milled out the end face structure schematic diagram of three kinds of workpieces 25 of internal keyway 26 as can be seen.Shown in Fig. 2～5, milling head 17 of the present utility model is the internal keyway 26 of the large-scale workpiece of manuscript 1 easily, this milling head 17 is fixed on lathe headstock 16 lower surfaces by housing 1, milling head 17 comprises housing 1, power transmission shaft 3, driving bevel gear 5, passive bevel gear 6, splined shaft 7, active spur gear 8, passive spur gear 9, milling head main shaft 11 and milling cutter 13, the lower end of housing 1 is connected with end cap 12, the left-hand end opening of housing 1, power transmission shaft 3 upper ends in the housing 1 and machine tool chief axis 2 straight end-face keys fasten, power transmission shaft 3 lower ends are connected with driving bevel gear 5 splines, driving bevel gear 5 and passive bevel gear 6 engagements, passive bevel gear 6 is connected with splined shaft 7 splines, the middle part of splined shaft 7 is connected with active spur gear 8 splines, initiatively spur gear 8 meshes with passive spur gear 9, passive spur gear 9 is connected with milling head main shaft 11 splines, be fixed with milling cutter 13 on the milling head main shaft 11, milling head main shaft 11 becomes 90 ° to intersect with the axial line of power transmission shaft 3, milling cutter 13 comprises cutter spindle 23 and cutter blade 15, have on the cutter spindle 23 of milling cutter 13 and have Morse's taper hole 24, cutter spindle 23 passes milling head main shaft 11, milling head main shaft 11 sides are provided with screw 10, screw 10 is fixed on milling cutter 13 on the milling head main shaft 11 by hole 23, cutter blade 15 is the thin straight-tooth cutter sheet 15 of six teeth, cutter blade 15 is fixed on the cutter spindle 23 in milling head main shaft 11 outsides, and distance is 5mm between milling head main shaft 11 and the cutter blade 15.
Milling head 17 of the present utility model is independent field replaceable units, is designed to diameter by workpiece size, and the milling head 17 that length is different is changed with workpiece is different.Milling head 17 can be applied to horizontal or vertical knee-type milling machine or key seat milling machine.In main spindle box 16 lower surfaces, 18 clamping tools of workbench to be installing workpiece with screw attachment in milling head 17 upper ends, and housing 1 outer diameter D of milling head 17 should be less than workpiece aperture 10～20mm, otherwise is difficult to enter workpiece and adjusts the groove milling degree of depth, the too small rigidity that then influences; Distance L=workpiece keyway length overall+(15～20mm) of the blue lower surface of milling cutter 14 axle center and housing 1 method.Use main spindle box 16 on the lathe of the present utility model along column 20 guide rail fast lifting or power feeds, main shaft 2 rotating speeds 40～1600r/min, main motor power 3.7Kw, the amount of feeding of feed box 22 is respectively 28,42,56,84mm/min, and the transmission device of main spindle box 16 fast liftings is positioned at the base 19 of column bottom surface.
Milling cutter 13 of the present utility model is a carbide end mill, and the cutter blade 15 of this milling cutter 13 can also be the cutter blade 15 of helical tooth.
Milling head of the present utility model 17 also can be made helical tooth with driving bevel gear 5 and passive bevel gear 6 as conditions permit, and initiatively spur gear 8 makes helical gear with passive spur gear 9, and then transmission is more steady, and milling effect is better.
The utility model is running like this: workpiece 25 is placed on the workbench 18, be in milling head 17 just below, power-on, adjust the amount of feeding of feed box 22, feed box 22 drives main spindle box 16 and down moves, the machine tool chief axis 2 that main motor then drives in the main spindle box 16 rotatablely moves around vertical axis, the power transmission shaft 3 that machine tool chief axis 2 drives in the milling head 17, power transmission shaft 3 drives splined shaft 7 by driving bevel gear 5 and passive bevel gear 6, splined shaft 7 is rotated around horizontal axis, the active spur gear 8 that is connected with splined shaft 7 splines drives passive spur gear 9, the milling head main shaft 11 that is connected with passive spur gear 9 splines also rotatablely moves around horizontal axis, thereby milling cutter 13 is made around horizontal axis and being rotatablely moved, Yi Bian and the internal keyway 26 of a side milling workpiece 25 down, finish until groove milling.
Claims (8)
1. milling head that is used for the internal keyway milling, be installed in the lathe headstock lower surface, it is characterized in that described milling head comprises housing, power transmission shaft, driving bevel gear, passive bevel gear, splined shaft, the active spur gear, passive spur gear, milling head main shaft and milling cutter, described milling head is fixed on the lathe headstock lower surface by housing, the lower end of described housing is connected with end cap, power transmission shaft upper end in the described housing fastens with the machine tool chief axis straight end-face key, described power transmission shaft lower end is connected with the driving bevel gear spline, described driving bevel gear and the engagement of passive bevel gear, described passive bevel gear is connected with the splined shaft spline, the middle part of described splined shaft is connected with active spur gear spline, described active spur gear and the engagement of passive spur gear, described passive spur gear is connected with the milling head main spindle multiple spline, is fixed with milling cutter on the described milling head main shaft.
2. a kind of milling head that is used for the internal keyway milling according to claim 1 is characterized in that the left-hand end opening of described housing.
3. a kind of milling head that is used for the internal keyway milling according to claim 1 is characterized in that described milling head main shaft becomes 90 ° to intersect with the axial line of power transmission shaft.
4. a kind of milling head that is used for the internal keyway milling according to claim 1, it is characterized in that described milling cutter comprises cutter spindle and cutter blade, have the hole on the cutter spindle of described milling cutter, described cutter spindle passes the milling head main shaft, described milling head main shaft side is provided with screw, and described screw is fixed on milling cutter on the milling head main shaft by the hole.
5. a kind of milling head that is used for the internal keyway milling according to claim 4 is characterized in that described cutter blade is fixed on the cutter spindle in the milling head main shaft outside close contact between described milling head main shaft and the cutter blade.
6. a kind of milling head that is used for the internal keyway milling according to claim 4, the hole that it is characterized in that described cutter spindle is the hole with Morse's taper.
7. a kind of milling head that is used for the internal keyway milling according to claim 4 is characterized in that described cutter blade is the fine-tooth cutter sheet of six teeth.
8. a kind of milling head that is used for the internal keyway milling according to claim 7 is characterized in that described cutter blade is straight-tooth cutter sheet or helical tooth cutter sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203038119U CN201320629Y (en) | 2008-12-29 | 2008-12-29 | Milling head for milling internal keyway |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008203038119U CN201320629Y (en) | 2008-12-29 | 2008-12-29 | Milling head for milling internal keyway |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201320629Y true CN201320629Y (en) | 2009-10-07 |
Family
ID=41158017
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008203038119U Expired - Fee Related CN201320629Y (en) | 2008-12-29 | 2008-12-29 | Milling head for milling internal keyway |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201320629Y (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909593A (en) * | 2012-11-05 | 2013-02-06 | 慈溪市汇丽机电有限公司 | Milling cutter head of inner hole straight channel with small diameter and deep length |
| CN103252526A (en) * | 2013-04-29 | 2013-08-21 | 南京旋风数控机床有限公司 | Inner spiral groove cutter head |
| CN103464818A (en) * | 2013-09-23 | 2013-12-25 | 忻州市三源煤矿机械有限公司 | Internal keyway milling head device |
| CN105921799A (en) * | 2016-05-25 | 2016-09-07 | 南通西马特机器制造有限公司 | Horizontal type internal keyway milling machine tool |
| CN106735483A (en) * | 2017-02-21 | 2017-05-31 | 济南大学 | Inner hole key slot milling attachment and method for milling |
| CN108890002A (en) * | 2018-09-07 | 2018-11-27 | 长沙哈镘数控深孔技术有限责任公司 | A kind of CNC milling machine |
| CN111266635A (en) * | 2020-02-10 | 2020-06-12 | 大连理工大学 | Crystallizer copper pipe inner cavity processing machine tool |
| CN115971551A (en) * | 2022-12-27 | 2023-04-18 | 上海中远船务工程有限公司 | Shaft sleeve inner hole straight oil groove processing equipment |
-
2008
- 2008-12-29 CN CNU2008203038119U patent/CN201320629Y/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102909593A (en) * | 2012-11-05 | 2013-02-06 | 慈溪市汇丽机电有限公司 | Milling cutter head of inner hole straight channel with small diameter and deep length |
| CN103252526A (en) * | 2013-04-29 | 2013-08-21 | 南京旋风数控机床有限公司 | Inner spiral groove cutter head |
| CN103252526B (en) * | 2013-04-29 | 2015-01-21 | 南京旋风数控机床有限公司 | Inner spiral groove cutter head |
| CN103464818A (en) * | 2013-09-23 | 2013-12-25 | 忻州市三源煤矿机械有限公司 | Internal keyway milling head device |
| CN105921799A (en) * | 2016-05-25 | 2016-09-07 | 南通西马特机器制造有限公司 | Horizontal type internal keyway milling machine tool |
| CN106735483A (en) * | 2017-02-21 | 2017-05-31 | 济南大学 | Inner hole key slot milling attachment and method for milling |
| CN108890002A (en) * | 2018-09-07 | 2018-11-27 | 长沙哈镘数控深孔技术有限责任公司 | A kind of CNC milling machine |
| CN111266635A (en) * | 2020-02-10 | 2020-06-12 | 大连理工大学 | Crystallizer copper pipe inner cavity processing machine tool |
| CN111266635B (en) * | 2020-02-10 | 2022-09-13 | 大连理工大学 | Crystallizer copper pipe inner cavity processing machine tool |
| CN115971551A (en) * | 2022-12-27 | 2023-04-18 | 上海中远船务工程有限公司 | Shaft sleeve inner hole straight oil groove processing equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20091007 Termination date: 20151229 |
|
| EXPY | Termination of patent right or utility model |