CN101745705A - New high-efficiency whirling milling head - Google Patents
New high-efficiency whirling milling head Download PDFInfo
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- CN101745705A CN101745705A CN200810072388A CN200810072388A CN101745705A CN 101745705 A CN101745705 A CN 101745705A CN 200810072388 A CN200810072388 A CN 200810072388A CN 200810072388 A CN200810072388 A CN 200810072388A CN 101745705 A CN101745705 A CN 101745705A
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- milling head
- facing cutter
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- cutter
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Abstract
The invention discloses a new high-efficiency whirling milling head. Four cutter bars are fixedly arranged on four cutter installing grooves on a milling cutter disk, and the milling cutter disk is provided with mouse tooth-shaped gears meshed with the cutter bars, so that the cutter bars can be positioned more reliably and can be assembled and disassembled more conveniently. The positions of the cutter bars in the cutter installing grooves are adjusted by a vernier depth gauge to meet the condition that the center of the top edge of a cutter passes through the axle center of a workpiece. In the invention, the milling cutter disk and a pulley drive mechanism fixing cover are arranged in a whirling milling head cover body, and the lift angle of a milling head which is integrally connected with the whirling milling head cover body is adjusted through a set of screw bevel gear mechanism. After the cutter bars are worn, only the top surfaces of the obtuse parts of the cutter bars need to be ground, the tooth thickness and the cutting center line of the cutter bars can not be changed, the cutter bars can be reground for many times, and the dimensional accuracy and the positioning accuracy of the cutter bars can not be changed. The cutter which is ground by being vertically inclined for 13 degrees by the cutter bars is in a shortened tooth shape, still has very high strength and can be used for powerful high-speed milling.
Description
Technical field
The present invention relates to field of machining, what especially refer to a kind of milling with whirling cutter screw mandrel lathe mills the pin head unit.
Background technology
The milling head device of milling with whirling cutter screw mandrel of the prior art can be referring to Chinese patent literature in the disclosed ZL200420038752.9 of 2005.02.02 Whirlwind milling cutter head unit, it is installed in the knife holder slot on the facing cutter plane by one group of knife bar, facing cutter and cutter shaft are rigidly connected, be connected with a belt gear simultaneously, cutter shaft one end cylindrical is installed bearing, bearing outer ring is installed on the swinging mounting, the swinging mounting other end is installed motor, motor is connected with belt gear, the balance staff at swinging mounting two ends is installed on the milling cutter seat, and the balance staff of swinging mounting is connected with a swing guiding mechanism simultaneously; One group of knife holder slot on facing cutter plane, its respective sides straight line are respectively one group of tangent lines of identical a certain diameter cylindrical; Swinging mounting is being provided with lock-screw with the long groove of the circular arc of bearing relevant position.The shortcoming of its existence: 1. adopt a milling to be shaped, cutter is easy to wear, often changes cutter because of accuracy of thread is defective.2. want to prolong cutter life, will be with 3 cutter, 2 of heavy-duty tools, 1 of smoothing tool.3. this three should be contained in cutter on the same rotational circle tangent line, and thick essence cuts interference can not be arranged, and crossing to cut influence profile accuracy and fineness, and it is bigger to adorn the incision technology difficulty like this, and it is chronic to adorn cutter, and has influenced the efficient of milling with whirling cutter.Each cutter is refaced, and guarantee consistent with middle tangent line symmetry of cutter and transverse tooth thickness dimensional accuracy, relatively more difficult.4. above 3 reasons will cause the theoretical centerline of cutter not overlap with the cyclone head centre of gyration, and cause the thread form distortion.5. different angle and the screw lead Threads of rotary-cut will be revised thread form, by the technology of present cyclone head, and will be very difficult.6. abroad be with throw away clamped cutting bit sheet at present, will cause the cost of charp tool very high like this.So 7. domestic milling with whirling cutter rests on roughing always, on the soft level of milling of semifinishing.8. cutter is than quick-wearing, the friction of cutter and workpiece increases, cause that cutting force increases, and can produce following phenomenon: workpiece deformation, the vibration of whirlwind process system, cause that cumulative pitch error becomes big, the form of thread and middle footpath changes at fineness variation, workpiece heating distortion.
Summary of the invention
At the deficiencies in the prior art part, the invention provides new high-efficiency whirling milling head, its knife bar handling technique difficulty is little, accurate positioning, and knife bar long service life, but the milling workpiece of high-speed and high-intensity.
For achieving the above object, technical solution of the present invention is:
New high-efficiency whirling milling head, it is mainly by one group of knife bar that is installed on the facing cutter, a facing cutter and a belt gear are located on the facing cutter main shaft, described belt gear connects the motor synchronous belt pulley by a belt and facing cutter main shaft timing belt pulley is formed, described facing cutter end face evenly is distributed with a plurality of knife holder slots, cooperates the dress cutter position of knife bar also to be provided with mouse thread form tooth; Knife bar is located in the knife holder slot, and every wherein side knife bar all has the mouse thread form tooth with the facing cutter engagement, and the middle part offers the elongated adjustment hole, and bolt-through knife holder slot and elongated adjustment hole are fixed above-mentioned knife bar; The center line of blade milling face is parallel and contour with the center line of facing cutter end face.
The vertical plane angle of described blade and knife bar upper surface is 10 °-15 °, and this edge section is an isosceles trapezoid, and the angle of its two waists limit and knife bar side is 3 °-7 °.
Described facing cutter end face is provided with and is arranged in foursquare four knife holder slots, and straight-tooth of mouse thread form tooth is arranged vertically with the knife holder slot direction of slotting on it, and the tooth pitch of described mouse thread form tooth is 1MM.
One vernier depth gauge is in being arranged in knife holder slot.
Described facing cutter, facing cutter main shaft and pulley transmission mechanism fixed cover are located in the whirling milling head cover body; Described facing cutter main shaft timing belt pulley is located between the two bearings; Facing cutter, bearing, facing cutter main shaft timing belt pulley and another bearing in regular turn have been rigidly connected on the facing cutter main shaft.
Described facing cutter, facing cutter main shaft and pulley transmission mechanism fixed cover are located in the whirling milling head cover body; Described whirling milling head cover body is hubbed on the milling head base, and one group by the fixedly connected whirling milling head cover body of Worm and Worm Gear Driving mechanism.
Described whirling milling head cover body is hubbed on the milling head base, and one group by the fixedly connected whirling milling head cover body of Worm and Worm Gear Driving mechanism.
Described whirlwind mills pin head-shield body in the position that corresponding facing cutter is provided with, and is provided with a visual windows.
The usefulness of technique scheme is:
1, facing cutter and knife bar adopt the engagement of mouse thread form tooth, and contact-making surface is big, reliable clamping, easy to loading and unloading, positioning accuracy is very high, and error is about positive and negative 0.015MM, and knife bar and facing cutter adopt the side to install, during installation, dress cutter sight line is not hindered, so the precision of tool setting is high, compole is short during the dress cutter, got final product installation in 1-2 minute, dress cutter technical difficulty is very little.
2, after the knife bar wearing and tearing, the end face at a blunt place of reconditioning cutter, its tooth turning centre line thick and knife bar is constant, and knife bar can be refaced repeatedly.Each reconditioning 0.25MM is an example, a knife bar thickness is 40MM, and the thickness of blade is 30MM, and effectively used thickness is 27MM, (27 ÷ 0.25=108 time) can not cause the variation of the dimensional accuracy and the positioning accuracy of knife bar because knife bar can repeat big batch the use of refacing.
3, knife bar is through upright 13 ° of reconditionings of rear-inclined, and cutter produces the thread form that contracts, and the relief angle of generation is constant, and the tooth of cutter is thick constant, and the intensity of knife bar can not cut down, and can guarantee powerful high-speed milling.
4, belt is placed between the two bearings, make the facing cutter main shaft more steady in operation process, further stablized the machining accuracy of workpiece.In addition belt gear and whole milling head device are placed in the cover body, effectively avoided the damage of smear metal and cooling water, prolonged the service life of belt belt.
5, abandoned artificial locate mode of the prior art, the milling angle that adopts the Worm and Worm Gear Driving structure to come aligned cutting tool and workpiece, more accurate positioning has been stablized the machining accuracy of workpiece.
Description of drawings
Fig. 1 is a stereochemical structure decomposing schematic representation of the present invention;
Fig. 2 is an assembled state perspective view one of the present invention;
Fig. 3 is an assembled state perspective view two of the present invention;
Fig. 4 passes through workpiece axle center schematic diagram for sword center, the new cutter of the present invention top;
Fig. 5 weares and teares sword center, cutter top, back by workpiece axle center schematic diagram for the present invention;
Fig. 6 is a knife bar schematic side view of the present invention;
Fig. 7 is the A-A cross-sectional schematic of Fig. 6;
Fig. 8 is the B-B cross-sectional schematic of Fig. 6;
Fig. 9 is the D portion enlarged drawing of Fig. 8;
Figure 10 is the cutter grinding schematic diagram.
The specific embodiment
The present invention now is described in conjunction with the accompanying drawings and embodiments.
New high-efficiency whirling milling head as shown in Figure 1, 2, 3, it is made up of one group of knife bar 21, facing cutter 19, facing cutter main shaft 23 and a belt gear.Workpiece 4 passes facing cutter 19 center cavities, and the pivot of the pivot of facing cutter 19 and workpiece 4 keeps certain off-centre.
Described facing cutter 19: its end face is provided with a rotation centerline that is 191, four knife holder slots 191 of four knife holder slots of square arrangement and overlaps with the rotation centerline of facing cutter 19; Facing cutter 19 end faces also have mouse thread form tooth 192, and its straight-tooth is arranged vertical with knife holder slot 191 fluting directions.
Described knife bar 21: the finish-milling knife bar of rough milling knife bar and symmetrical installation and chamfering knife bar by two symmetrical installations are installed in the knife holder slot 191.Every all have the mouse thread form tooth 212 that meshes with facing cutter 19 to knife bar 21 back sides, and the tooth pitch of mouse thread form tooth 212 is 1MM.Add man-hour, should satisfy cutter top sword center line by the cutterhead center line, shown in Fig. 4,5, during the dress cutter, should satisfy cutter top sword center line 51 and pass through cutterhead center line 43 by cutterhead center line 42, cutter top sword center line 53 by cutterhead center line 41, cutter top sword center line 52.For making the cutter positioning more accurate, the present invention also utilizes a movable vernier depth gauge 38 that is arranged on the knife holder slot 191 further to regulate the installation site of knife bar 21 in knife holder slot 191.Its middle part of knife bar also offers elongated adjustment hole 211, adds required different eccentric angles in man-hour according to workpiece, regulates the depth of cut of knife bar 21.Bolt 22 runs through knife holder slot 191 and the elongated adjustment hole is fixed on knife bar 21 on the facing cutter 19 above-mentioned four.
The special character of blade of the present invention is shown in Fig. 6-9: with the included angle A of knife bar upper surface and horizontal plane be 13 °, this edge section is an isosceles trapezoid, the included angle B of its two waists limit and knife bar side is 5 °.In the reconditioning of cutter, as shown in figure 10,13 ° of angle E are fixed in reconditioning cutter 213 on the frock pedestal 22 with the upright rear-inclined of knife bar, 13 ° big anterior angle formed grinding wheel 20 one-time positioning clamping reconditionings, cutter produces 3.45 ° of relief angle E, and for shrinking the shape threading tool, the tooth of cutter is thick the same, cutter intensity height can powerful high-speed cutting.
Facing cutter main shaft 23 as shown in Figure 1, 2, 3: the facing cutter 19 that has been rigidly connected in regular turn on it, bearing 27, facing cutter main shaft timing belt pulley 28 and bearing 33.
Described belt gear: connect motor synchronous belt pulley 31 and facing cutter main shaft timing belt pulley 28 by a belt 26, two bearings 27,33 is placed facing cutter main shaft timing belt pulley 28 both sides,
Make more steady the leaning on of running of belt gear, and whole pulley transmission mechanism and facing cutter 19 fixed covers are located in the whirling milling head cover body 1, whirling milling head cover body 1 is movably connected on the base 10.Thus, not only make belt 26 play the dustproof effect, promoted the service life of belt greatly, and the also raising greatly of whole whirling milling head vibration resistance, crudy is more accurate.
The present invention also is provided with one group of Worm and Worm Gear Driving mechanism, adjusts the lift angle of whole whirling milling head.As shown in the figure, the side in whirling milling head cover body 1 offers a keyway, a worm gear retainingf key 7 fixedly connected worm gear 8 and whirling milling head cover bodies 1.Rotary worm 16, worm gear 8 drives the facing cutter, facing cutter main shaft and the pulley transmission mechanism that are fixed as one with whirling milling head cover body 1 and rotates.
The present invention also mills the position that the corresponding facing cutter 19 of pin head-shield body is provided with in whirlwind, is provided with a visual windows 2, the working condition that is used for observing cutter.
Claims (18)
1. new high-efficiency whirling milling head, it is mainly by one group of knife bar that is installed on the facing cutter, and a facing cutter and a belt gear are located on the facing cutter main shaft, and described belt gear connects the motor synchronous belt pulley by a belt and facing cutter main shaft timing belt pulley is formed, be characterised in that described
Facing cutter: its end face evenly is distributed with a plurality of knife holder slots, cooperates the dress cutter position of knife bar also to be provided with mouse thread form tooth;
Knife bar: be located in the knife holder slot, every wherein side knife bar all has the mouse thread form tooth with the facing cutter engagement, and the middle part offers the elongated adjustment hole, and bolt-through knife holder slot and elongated adjustment hole are fixed above-mentioned knife bar; The center line of blade milling face is parallel and contour with the center line of facing cutter end face.
2. new high-efficiency whirling milling head as claimed in claim 1 is characterised in that: the vertical plane angle of described blade and knife bar upper surface is 10 °-15 °, and this edge section is an isosceles trapezoid, and the angle of its two waists limit and knife bar side is 3 °-7 °.
3. new high-efficiency whirling milling head as claimed in claim 2 is characterised in that: the vertical plane angle of described blade and knife bar upper surface is 13 °, and this edge section is an isosceles trapezoid, and the angle of its two waists limit and knife bar side is 5 °.
4. as claim 1,2 or 3 described new high-efficiency whirling milling heads, be characterised in that: described facing cutter end face is provided with and is arranged in foursquare four knife holder slots, straight-tooth of mouse thread form tooth is arranged vertically with the knife holder slot direction of slotting on it, and the tooth pitch of described mouse thread form tooth is 1MM.
5. as claim 1,2 or 3 described new high-efficiency whirling milling heads, be characterised in that: a vernier depth gauge is in being arranged in knife holder slot.
6. new high-efficiency whirling milling head as claimed in claim 4 is characterised in that: a vernier depth gauge is in being arranged in knife holder slot.
7. as claim 1,2 or 3 described new high-efficiency whirling milling heads, be characterised in that: described facing cutter, facing cutter main shaft and pulley transmission mechanism fixed cover are located in the whirling milling head cover body; Described facing cutter main shaft timing belt pulley is located between the two bearings; Facing cutter, bearing, facing cutter main shaft timing belt pulley and another bearing in regular turn have been rigidly connected on the facing cutter main shaft.
8. new high-efficiency whirling milling head as claimed in claim 4 is characterised in that: described facing cutter, facing cutter main shaft and pulley transmission mechanism fixed cover are located in the whirling milling head cover body; Described facing cutter main shaft timing belt pulley is located between the two bearings; Facing cutter, bearing, facing cutter main shaft timing belt pulley and another bearing in regular turn have been rigidly connected on the facing cutter main shaft.
9. as claim 1,2 or 3 described new high-efficiency whirling milling heads, be characterised in that: described facing cutter, facing cutter main shaft and pulley transmission mechanism fixed cover are located in the whirling milling head cover body; Described whirling milling head cover body is hubbed on the milling head base, and one group by the fixedly connected whirling milling head cover body of Worm and Worm Gear Driving mechanism.
10. new high-efficiency whirling milling head as claimed in claim 4 is characterised in that: described facing cutter, facing cutter main shaft and pulley transmission mechanism fixed cover are located in the whirling milling head cover body; Described whirling milling head cover body is hubbed on the milling head base, and one group by the fixedly connected whirling milling head cover body of Worm and Worm Gear Driving mechanism.
11. new high-efficiency whirling milling head as claimed in claim 7 is characterised in that: described whirling milling head cover body is hubbed on the milling head base, and one group by the fixedly connected whirling milling head cover body of Worm and Worm Gear Driving mechanism.
12. new high-efficiency whirling milling head as claimed in claim 8 is characterised in that: described whirling milling head cover body is hubbed on the milling head base, and one group by the fixedly connected whirling milling head cover body of Worm and Worm Gear Driving mechanism.
13. new high-efficiency whirling milling head as claimed in claim 7 is characterised in that: described whirlwind mills pin head-shield body in the position that corresponding facing cutter is provided with, and is provided with a visual windows.
14. new high-efficiency whirling milling head as claimed in claim 8 is characterised in that: described whirlwind mills pin head-shield body in the position that corresponding facing cutter is provided with, and is provided with a visual windows.
15. new high-efficiency whirling milling head as claimed in claim 9 is characterised in that: described whirlwind mills pin head-shield body in the position that corresponding facing cutter is provided with, and is provided with a visual windows.
16. new high-efficiency whirling milling head as claimed in claim 10 is characterised in that: described whirlwind mills pin head-shield body in the position that corresponding facing cutter is provided with, and is provided with a visual windows.
17. new high-efficiency whirling milling head as claimed in claim 11 is characterised in that: described whirlwind mills pin head-shield body in the position that corresponding facing cutter is provided with, and is provided with a visual windows.
18. new high-efficiency whirling milling head as claimed in claim 12 is characterised in that: described whirlwind mills pin head-shield body in the position that corresponding facing cutter is provided with, and is provided with a visual windows.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810072388A CN101745705A (en) | 2008-12-16 | 2008-12-16 | New high-efficiency whirling milling head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200810072388A CN101745705A (en) | 2008-12-16 | 2008-12-16 | New high-efficiency whirling milling head |
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| Publication Number | Publication Date |
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| CN101745705A true CN101745705A (en) | 2010-06-23 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN200810072388A Pending CN101745705A (en) | 2008-12-16 | 2008-12-16 | New high-efficiency whirling milling head |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102554324A (en) * | 2012-02-23 | 2012-07-11 | 孙秋云 | Cutterhead-deflected linkable internal turbo cutlery |
| CN102950341A (en) * | 2012-01-05 | 2013-03-06 | 陕西汉江机床有限公司 | Whirling cutter milling high-precision positioning cutter head |
| CN110076399A (en) * | 2019-04-16 | 2019-08-02 | 广州市敏嘉制造技术有限公司 | A kind of rotation milling method |
| CN111151797A (en) * | 2020-01-16 | 2020-05-15 | 东北林业大学 | Swing type adjusting and milling device applied to beam and column material processing |
| CN113182574A (en) * | 2021-05-17 | 2021-07-30 | 常熟万克精密工具有限公司 | Fine adjustment type cyclone milling cutter head |
| CN113523369A (en) * | 2021-09-15 | 2021-10-22 | 徐州徐液液压科技有限公司 | Cylinder body ring milling device based on intelligent manufacturing of hydraulic oil cylinder |
-
2008
- 2008-12-16 CN CN200810072388A patent/CN101745705A/en active Pending
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102950341A (en) * | 2012-01-05 | 2013-03-06 | 陕西汉江机床有限公司 | Whirling cutter milling high-precision positioning cutter head |
| CN102554324A (en) * | 2012-02-23 | 2012-07-11 | 孙秋云 | Cutterhead-deflected linkable internal turbo cutlery |
| CN102554324B (en) * | 2012-02-23 | 2013-08-14 | 孙秋云 | Cutterhead-deflected linkable internal turbo cutlery |
| CN110076399A (en) * | 2019-04-16 | 2019-08-02 | 广州市敏嘉制造技术有限公司 | A kind of rotation milling method |
| CN111151797A (en) * | 2020-01-16 | 2020-05-15 | 东北林业大学 | Swing type adjusting and milling device applied to beam and column material processing |
| CN113182574A (en) * | 2021-05-17 | 2021-07-30 | 常熟万克精密工具有限公司 | Fine adjustment type cyclone milling cutter head |
| CN113182574B (en) * | 2021-05-17 | 2022-05-10 | 常熟万克精密工具有限公司 | Fine tuning type cyclone milling cutter disc |
| CN113523369A (en) * | 2021-09-15 | 2021-10-22 | 徐州徐液液压科技有限公司 | Cylinder body ring milling device based on intelligent manufacturing of hydraulic oil cylinder |
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Application publication date: 20100623 |