CN205599930U - Main shaft device - Google Patents
Main shaft device Download PDFInfo
- Publication number
- CN205599930U CN205599930U CN201520911301.XU CN201520911301U CN205599930U CN 205599930 U CN205599930 U CN 205599930U CN 201520911301 U CN201520911301 U CN 201520911301U CN 205599930 U CN205599930 U CN 205599930U
- Authority
- CN
- China
- Prior art keywords
- main shaft
- mentioned
- hole
- balance pipe
- diameter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Abstract
The utility model relates to a main shaft device, this main shaft device has the main shaft of mountable cutter. Main shaft device includes: the main shaft, it is rotatory around the ability axis, the terminal surface cover, it is cyclic annular, and is fixed in the periphery part of the lower tip of main shaft, the balancing hole, it locates the main shaft, and the counter weight that can will be used for keeping above -mentioned main shaft balancing is installed in this balancing hole, the perforating hole, terminal surface cover and position that the balancing hole corresponds are located to it, and the lid, it plugs up the perforating hole. The utility model discloses a keep main shaft balancing to balancing hole installation counter weight to perforating hole through at the terminal surface cover sets up the production that the lid prevented the wind noise.
Description
Technical field
This utility model relates to main shaft device, and this main shaft device has the main shaft that can install cutter.
Background technology
Workpiece is processed by lathe by being driven making to be installed on the cutter rotation of main shaft.Main shaft receiving portion can support this main shaft by main shaft in the way of rotating freely.Cutting tool installation manner is in the bottom of main shaft.Lathe has coolant supply apparatus.Coolant supply apparatus Workpiece supply coolant in the course of processing.Coolant takes away the frictional heat produced between workpiece and the cutter of rotation, thus prevents cutter and workpiece overheated.The life-span of cutter and the machining accuracy of workpiece are improved by the supply of coolant.
No. 2010-076045 main shaft device disclosing a kind of lathe of Japanese Laid-Open Patent Publication JP.Main shaft device is provided with labyrinth part between main shaft and main shaft receiving portion, and sprays air from the gap between main shaft and main shaft receiving portion, thus prevents the entrance of coolant.Main shaft device includes the main shaft cover of the end face cover being fixed on the circumference of main shaft lower end and the lower end being fixed on main shaft receiving portion.End face cover hood-shaped with main shaft become labyrinth part.When main shaft imbalance, main shaft vibrates in rotary course, causes the machining accuracy of workpiece to reduce.In order to suppress the vibration of main shaft, main shaft is needed to keep balance.Therefore, main shaft device is provided with hole on main shaft, inserts the counterweight for keeping balance, such as screw in hole.When need not insert screw in this hole, the opening-like state in hole, wind noise is easily produced when main shaft rotates.
Utility model content
The purpose of this utility model is to provide the main shaft device of a kind of generation keeping main shaft balancing and suppression wind noise.
The main shaft device of technical scheme 1 includes: main shaft, and it can rotate about the axis；End face cover, it is ring-type, and is fixed on the outer peripheral portion of the bottom of above-mentioned main shaft；And balance pipe, it is located at above-mentioned main shaft, the counterweight being used for adjusting above-mentioned main shaft balancing can be installed on this balance pipe；Wherein, above-mentioned end face covers on the position corresponding with above-mentioned balance pipe and is provided with through hole；This main shaft device has the lid blocking above-mentioned through hole.
Main shaft device adjusts main shaft balancing by installing counterweight in balance pipe, and prevents the generation of wind noise by arranging lid at the through hole of end face cover.
The diameter of the counterweight of the main shaft device of technical scheme 2 is less than the diameter of lid, and the diameter of through hole is more than the diameter of balance pipe.
The diameter of counterweight less than the diameter of lid, and, the diameter of through hole is more than the diameter of balance pipe, and therefore, counterweight can be installed on balance pipe to adjust main shaft balancing by operator when end face cover is installed on main shaft, the most again lid is installed on through hole.When the diameter of through hole is less than or equal to the diameter of balance pipe, it is necessary to again counterweight being installed on balance pipe after pulling down end face cover, the most again end face cover is installed on main shaft, therefore, main shaft device of the present utility model can improve working performance.
The above-mentioned lid of the main shaft device of technical scheme 3 is the screw with head, and above-mentioned through hole has the countersink region for accommodating above-mentioned head, and above-mentioned head is positioned at above-mentioned countersink region, does not highlights from above-mentioned end face cover.
By forming countersink region on through hole, make head be positioned at countersink region, do not highlight from end face cover, thus decrease the producing cause of wind noise.
The balance pipe of the main shaft device of technical scheme 4 is that multiple and around above-mentioned main shaft axle center is equally spaced；Above-mentioned through hole is multiple and is located at the position corresponding with each above-mentioned balance pipe；This main shaft device has the multiple above-mentioned lid corresponding with each above-mentioned through hole；The weight of each above-mentioned lid is identical.Multiple balance pipes are opened at equal intervals around the axle center sky of main shaft.Even if more each lid being installed on each through hole counterweight is installed on balance pipe after adjusting main shaft balancing, main shaft also can maintain balance.
Accompanying drawing explanation
Fig. 1 is the side view of the main shaft device representing lathe.
Fig. 2 is the sectional view of the top ends of main shaft and main shaft receiving portion.
Fig. 3 is to represent main shaft and the upward view of end face cover.
Fig. 4 is the assembled sectional view with the IV-IV line shown in Fig. 3 as cutting line.
Detailed description of the invention
Hereinafter, accompanying drawing based on the main shaft device representing embodiment illustrates.Fig. 1 is the side view of the main shaft device representing lathe, and Fig. 2 is the sectional view of the top ends of main shaft and main shaft receiving portion.
As it is shown in figure 1, main shaft device 1 has main tapping 2.Main tapping 2 has main shaft receiving portion 3 in end (left end of Fig. 1).Main tapping 2 has two guide portion 2a and nut portions 2b in the other end (right-hand end of Fig. 1).Guide portion 2a is installed on the pillar (omitting diagram) vertically extended, and supporting spindle head 2.Pillar has the screw rod (omitting diagram) of above-below direction, and nut portions 2b threadingly engages in screw rod.Screw rod rotates under the driving of Z axis motor (omitting diagram).Main tapping 2 rotating thus mobile along the direction (above-below direction) of screw rod by screw rod.Each guide portion 2a guides the movement of the above-below direction of main tapping 2.
As in figure 2 it is shown, main shaft receiving portion 3 is cylindrical shape, heart portion can support this main shaft 11 by main shaft 11 in the way of rotating freely wherein.Main shaft 11 is vertically extending, and rotates under the driving of spindle motor (omitting diagram).
Ring-type main shaft cover 8 is installed on the lower end of main shaft receiving portion 3.Main shaft cover 8 is fixed on the lower surface of main shaft receiving portion 3 by many bolts (omitting diagram).Main shaft cover 8 has cooling liquid chamber 12c.Ring-type nozzle forms component 12 and is installed on the lower surface of main shaft cover 8.Nozzle is formed component 12 and is fixed on the lower surface of main shaft cover 8 by many bolts (omitting diagram).Main shaft 11 passes through from the centre bore of main shaft cover 8, and is projected into the lower section of main shaft receiving portion 3.Main shaft 11 has Cutting tool installation manner hole 11a at the center of lower surface.Cutting tool installation manner hole 11a is taper hole.The upside diameter of Cutting tool installation manner hole 11a is less than downside diameter.The handle of a knife (omitting diagram) of cone keeps cutter (omitting diagram).Handle of a knife is installed on Cutting tool installation manner hole 11a, and Cutting tool installation manner is in the lower end of main shaft 11.Nozzle forms component 12 and has multiple nozzle bore 12b in the inner peripheral portion of lower surface.Multiple nozzle bore 12b connect with cooling liquid chamber 12c.Coolant is sprayed downwards by cooling liquid chamber 12c and nozzle bore 12b.Nozzle bore 12b sprays coolant, coolant impact workpiece towards the center of main shaft 11 toward obliquely downward.
As in figure 2 it is shown, the outer peripheral portion of the lower surface of main shaft 11 is located at by ring-type end face cover 13.End face cover 13 is fixed on the lower surface of main shaft 11 by fixing screw 51 (with reference to Fig. 3).End face cover 13 reaches the outside of the periphery of main shaft 11.The extension of end face cover 13 is relative with the inner peripheral portion of main shaft cover 8 across gap.The periphery of end face cover 13 is relative with the inner circumferential of the centre bore that nozzle forms component 12 across gap.Opposite segments between the main shaft device 1 opposite segments and end face cover 13 and nozzle formation component 12 between end face cover 13 and main shaft cover 8 has labyrinth part 21.Air chamber 19 is located between the inner peripheral surface of main shaft cover 8 and the outer peripheral face of main shaft 11.Main shaft cover 8 has the air supply hole 20 extended radially through.Air chamber 19 supplies air to hole 20 and connects with labyrinth part 21.Air supply hole 20 is connected with compressed-air actuated supply circuit (omitting diagram) by the opening of the periphery of main shaft cover 8.Compressed air blows out from the gap between end face cover 13 and main shaft cover 8 via air supply hole 20, air chamber 19 and labyrinth part 21.
Fig. 3 is to represent main shaft 11 and the upward view of end face cover 13, and Fig. 4 is the sectional view with the IV-IV line shown in Fig. 3 as cutting line.Four installing hole 11b are located at the lower surface of the peripheral part of main shaft 11.Fixing screw 51 is installed on installing hole 11b.Four installing hole 11b open 90 degree at equal intervals around the axle center sky of main shaft 11.The inner circumferential of installing hole 11b is located at by thread groove.Six balance pipe 11c are located at the lower surface of the peripheral part of main shaft 11.Six balance pipe 11c around the axle center sky of main shaft 11 open 60 degree at equal intervals, four balance pipe 11c lay respectively at the side of four installing hole 11b.The inner circumferential of balance pipe 11c is located at by thread groove.Balance screw 53 is installed on balance pipe 11c.
End face cover 13 is provided with four through insertion hole 13a in the position corresponding with the installing hole 11b of main shaft 11.Installing hole 11b is connected in the axial direction with inserting hole 13a.Fixing screw 51 is inserted in insertion hole 13a.Countersink region 13b is formed at the bottom inserting hole 13a.Insert the diameter diameter more than installing hole 11b of hole 13a.End face cover 13 is provided with six through hole 13d in the position corresponding with the balance pipe 11c of main shaft 11.Balance pipe 11c is connected in the axial direction with through hole 13d.Countersink region 13f is disposed through the bottom of hole 13d.The diameter of the through hole 13d diameter more than balance pipe 11c.Thread groove is disposed through the inner circumferential of hole 13d, as an example of lid, can list cover screw 52.Cover screw 52 is inserted in through hole 13d.
Fixing screw 51 has head 51a and from the axle portion 51b that head 51a axially protrudes.The diameter of the head 51a diameter more than axle portion 51b.The diameter of head 51a is identical with the diameter of countersink region 13b, and the diameter more than other 13c (inserting the part in addition to countersink region 13b of hole 13a) inserting hole 13a.The diameter of the axle portion 51b diameter less than other 13c.Fixing screw 51 is inserted in insertion hole 13a, the axle portion 51b of fixing screw 51 and threadingly engages in installing hole 11b.The head 51a of fixing screw 51 is positioned at countersink region 13b.The lower surface of head 51a and end face cover 13 is the most at grade.End face cover 13 and main shaft 11 are coupled together by fixing screw 51.
As an example of counterweight, balance screw 53 can be listed.Balance screw 53 is headless screw, is installed on balance pipe 11c as required to adjust the balance of main shaft 11.The balance axial dimension of screw 53 is less than the axial dimension of balance pipe 11c.Compared with the open side of balance pipe 11c, balance screw 53 is positioned against the position of bottom side, hole.The balance diameter of screw 53 is less than the diameter of through hole 13d, therefore, it is possible to balance screw 53 is installed on balance pipe 11c when end face cover 13 is installed on main shaft 11.Balance screw 53 is the part of the balance for adjusting main shaft 11, does not installs balance screw 53 in the balance pipe 11 also having.
Cover screw 52 has screw division 52a and the flange part 52b of the end being located at screw division 52a.Flange part 52b can enumerate out as an example of head.The diameter of the flange part 52b diameter more than screw division 52a, and identical with the diameter of countersink region 13f.The axial dimension of flange part 52b is identical with the axial dimension of countersink region 13f.The axial dimension of screw division 52a is identical with the axial dimension of other 13e of through hole 13d (part in addition to countersink region 13f of through hole 13d).Screw division 52a is installed on other 13e.When cover screw 52 is installed on through hole 13d, flange part 52b is positioned at countersink region 13f.The most at grade, i.e. flange part 52b does not highlights from end face cover 13 for the lower surface of flange part 52b and the lower surface of end face cover 13.Balance pipe 11c and through hole 13d blocked by cover screw 52.Cover screw 52 is installed on all of through hole 13d, and the weight of each cover screw 52 is identical.
Action effect of the present utility model is described.Balance screw 53 is installed on balance pipe 11c to adjust the balance of main shaft 11 by operator.Then, cover screw 52 is installed on the through hole 13d of end face cover 13 by operator.Therefore, balance pipe 11c and through hole 13d blocked by cover screw 52, and main shaft device 1 inhibits the generation of wind noise.Such as, rotate with 27000rpm at main shaft 11, when microphone position being arranged on the position away from lathe front surface 1m to measure noise, when not blocking balance pipe 11c with cover screw 52 compared with, equivalent continuous sound level reduces about 3.5db, loudness reduces about 5.4sone.
The balance diameter of screw 53 is less than the diameter of cover screw 52, and, the diameter of the through hole 13d diameter more than balance pipe 11c, therefore, it is possible to be installed on balance pipe 11c when end face cover 13 is installed on main shaft 11 by balance screw 53.When the diameter of through hole 13d is less than or equal to the diameter of balance pipe 11c, balance screw 53 must be installed on balance pipe 11c after pulling down end face cover 13, the most again end face cover 13 is installed on main shaft 11 by operator again.Therefore, main shaft device 1 of the present utility model need not repeatedly load and unload end face cover 13, therefore, it is possible to efficiency is preferably adjusted the operation of balance.
By forming countersink region 13f on through hole 13d so that flange part 52b does not highlights from end face cover 13, thus decreases the producing cause of wind noise.Flange part 52b with end face cover 13 the most at grade, therefore, effectively prevent the generation of wind noise.
Six balance pipe 11c around the axle center sky of main shaft 11 open 60 degree at equal intervals, therefore, the cover screw 52 corresponding with balance pipe 11c also opens 60 degree at equal intervals around the axle center sky of main shaft 11.The weight of each cover screw 52 is identical.Therefore, even if more each cover screw 52 being installed on each through hole 13d balance screw 53 is installed on balance pipe 11c after the balance adjusting main shaft 11, main shaft 11 also can maintain balance.
The quantity of balance pipe 11c is not limited to six.As long as balance pipe 11c around the axle center sky of main shaft 11 open predetermined angular at equal intervals.Such as, the quantity of balance pipe 11c can also be four or eight etc..
Counterweight of the present utility model is constituted with screw 53 by balancing, but is not screw.For example, it is also possible on columned component coating adhesive being inserted in balance pipe 11c.Columned component can be metal, resin etc..The shape of this component may not be cylindric.Can also be such as coniform.
Claims (4)
1. a main shaft device, comprising:
Main shaft (11), it can rotate about the axis；End face cover (13), it is ring-type, and is fixed on the outer peripheral portion of above-mentioned main shaft bottom；And balance pipe (11c), it is located at above-mentioned main shaft, the counterweight being used for adjusting above-mentioned main shaft balancing can be installed on this balance pipe；
This main shaft device (1) is characterised by,
Above-mentioned end face covers on the position corresponding with above-mentioned balance pipe and is provided with through hole (13d)；
This main shaft device has the lid blocking above-mentioned through hole.
Main shaft device the most according to claim 1, it is characterised in that
The diameter of above-mentioned counterweight is less than the diameter of above-mentioned lid, and the diameter of above-mentioned through hole is more than the diameter of above-mentioned balance pipe.
Main shaft device the most according to claim 2, it is characterised in that
Above-mentioned lid is the screw with head；
Above-mentioned through hole has the countersink region (13f) for accommodating above-mentioned head；
Above-mentioned head is positioned at above-mentioned countersink region, does not highlights from above-mentioned end face cover.
4. according to the main shaft device according to any one of claims 1 to 3, it is characterised in that
Above-mentioned balance pipe is that multiple and around above-mentioned main shaft axle center is equally spaced；
Above-mentioned through hole is multiple and is located at the position corresponding with each above-mentioned balance pipe；
This main shaft device has the multiple above-mentioned lid corresponding with each above-mentioned through hole；
The weight of each above-mentioned lid is identical.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2014-236560 | 2014-11-21 | ||
| JP2014236560A JP6380041B2 (en) | 2014-11-21 | 2014-11-21 | Spindle device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205599930U true CN205599930U (en) | 2016-09-28 |
Family
ID=56076420
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520911301.XU Active CN205599930U (en) | 2014-11-21 | 2015-11-16 | Main shaft device |
Country Status (2)
| Country | Link |
|---|---|
| JP (1) | JP6380041B2 (en) |
| CN (1) | CN205599930U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112475335A (en) * | 2020-11-20 | 2021-03-12 | 上海第二工业大学 | Automatic dynamic balance adjusting device for electric spindle |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP7347781B2 (en) * | 2018-07-10 | 2023-09-20 | 安田工業株式会社 | Machine tool vibration damping device |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH08174370A (en) * | 1994-12-20 | 1996-07-09 | Mitsubishi Heavy Ind Ltd | Balancing structure of rotary shaft |
| JP3862377B2 (en) * | 1997-09-04 | 2006-12-27 | エヌティーツール株式会社 | Tool chuck |
| JP3973862B2 (en) * | 2001-08-31 | 2007-09-12 | 株式会社日平トヤマ | Spindle balance adjustment structure |
| JP5301774B2 (en) * | 2006-11-29 | 2013-09-25 | オークマ株式会社 | Main shaft structure |
| JP2009281426A (en) * | 2008-05-20 | 2009-12-03 | Dam Corp | Lock nut |
| JP5353157B2 (en) * | 2008-09-26 | 2013-11-27 | ブラザー工業株式会社 | Spindle device for machine tools |
| JP5622614B2 (en) * | 2011-02-25 | 2014-11-12 | オークマ株式会社 | Rotating shaft device |
-
2014
- 2014-11-21 JP JP2014236560A patent/JP6380041B2/en active Active
-
2015
- 2015-11-16 CN CN201520911301.XU patent/CN205599930U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112475335A (en) * | 2020-11-20 | 2021-03-12 | 上海第二工业大学 | Automatic dynamic balance adjusting device for electric spindle |
| CN112475335B (en) * | 2020-11-20 | 2023-10-20 | 上海第二工业大学 | Dynamic balance automatic regulating device for electric spindle |
Also Published As
| Publication number | Publication date |
|---|---|
| JP6380041B2 (en) | 2018-08-29 |
| JP2016097478A (en) | 2016-05-30 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US9825502B2 (en) | Electric motor having air purge function | |
| CN205599930U (en) | Main shaft device | |
| CN104551027A (en) | Built-in electric main shaft for high-speed milling and drilling | |
| CN104384528A (en) | Flange bearing metal cutting machining process and fixture for implementing process | |
| US20190061085A1 (en) | Spindle apparatus for use on a numerically controlled machine tool | |
| CN104384575A (en) | Split rotating cutter | |
| CN204603317U (en) | A kind of concealed electric main shaft for high-speed milling and drilling | |
| CN205734702U (en) | Bearing extractor | |
| CN108075593A (en) | Motor | |
| CN107685162B (en) | Turret device and machine tool with same | |
| JP6407905B2 (en) | Main shaft bearing protection device and machine tool equipped with the same | |
| CN204061346U (en) | A kind of blower fan that can realize rotor counterweight balance | |
| CN103796411B (en) | A kind of Surface Treatment with Plasma device mobile device | |
| CN107186448A (en) | A kind of processing method based on the serial flywheel housing assys of C3960414 | |
| CN210196108U (en) | Dynamic balance mandrel with end teeth and impeller mounting structure | |
| CN204159886U (en) | A kind of electro spindle axle core component of improvement | |
| RU2587371C1 (en) | High-speed motor spindle for metal cutting machines | |
| CN207719938U (en) | The mounting structure of anticollision ring in a kind of magnetic suspension motor rotor | |
| JP5939195B2 (en) | Rotating body | |
| CN205915030U (en) | Novel processing equipment | |
| CN104132005B (en) | A kind of blower fan being capable of rotor counterweight balance and counterweight balance method thereof | |
| WO2018047307A1 (en) | Machine tool | |
| CN108907253A (en) | A kind of center watering cutter | |
| CN214281117U (en) | Dynamic balance automatic correction structure, rotor assembly, motor, air conditioner and household appliance | |
| CN210060524U (en) | Eccentric mandrel |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |