CN203901002U - Cooling medium jetting device - Google Patents

Cooling medium jetting device Download PDF

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Publication number
CN203901002U
CN203901002U CN201420275358.0U CN201420275358U CN203901002U CN 203901002 U CN203901002 U CN 203901002U CN 201420275358 U CN201420275358 U CN 201420275358U CN 203901002 U CN203901002 U CN 203901002U
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CN
China
Prior art keywords
cooling medium
nozzle
quill shaft
injection apparatus
medium injection
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Expired - Lifetime
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CN201420275358.0U
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Chinese (zh)
Inventor
荻原英之
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Minebea Co Ltd
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Minebea Co Ltd
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Abstract

The utility model provides a cooling medium jetting device. According to the cooling medium jetting device, the original point position of a nozzle can be adjusted easily, and it is prevented that the nozzle disengages due to fluid force of a cooling medium. A hollow shaft (11) is inserted into a shell (6) and supported through bearings (12 and 13) so that the hollow shaft can be rotated, and O-type rings (14 and 15) are used for sealing a rotating part. The cooling medium is supplied from an inlet channel (19) to a cooling medium channel (17) of the hollow shaft (11) through a nozzle chamber (10) and a through hole (18) and is jetted through the nozzle installed at the front end of the hollow shaft. The hollow shaft is rotated by means of a motor (4) so that the rotating angle of the nozzle can be adjusted. The nozzle can be fixed to any rotating position through fixing screws (40), and therefore the original point position can be adjusted easily. A hole (32A) of the nozzle and a channel (35) of the nozzle are connected through a smooth and curve flow path, so that fluid force exerted on the nozzle is reduced, and the nozzle is prevented from disengaging.

Description

Cooling medium injection apparatus
Technical field
The utility model relates to the cooling medium injection apparatus for spray cooling medium towards working position when using lathe to carry out machining to workpiece.
Background technology
General, in the situation that using lathe to carry out the machinings such as machining, grinding, due to lubricated, cooling, smear metal is removed, deposited prevent etc., be difficult to supply with cooling medium (machining fluid, grinding finish etc.) towards working position on one side and process on one side.In such machining, from guaranteeing the stability of processing, the viewpoint of machining accuracy, expect suitably to supply with cooling medium towards working position.Therefore, in the automatic machine tools such as NC lathe, machining center, propose to have the various spray angles of automatically adjusting cooling medium according to the carrying out of processing, suitably spray thus the cooling medium injection apparatus of cooling medium towards working position.In this cooling medium injection apparatus, utilize motor to drive the nozzle that sprays cooling medium, adjust position, the angle of nozzle according to the carrying out of the replacing of instrument, machining etc., correctly spray cooling medium towards working position thus.
And, for cooling medium injection apparatus, because it is exposed in the dispersing of the spittle, smear metal of the cooling medium producing by machining, therefore there is sufficient antidrip property and dust tightness for the requirement such as servo motor, reduction gear that drives nozzle, and, owing to need to being arranged at the limited space of the automatic machine tool such as machining center, NC lathe, therefore expecting can miniaturization.As the device of the requirement corresponding to such, for example in patent documentation 1, disclose following cooling medium injection apparatus: the quill shaft of the stream that forms cooling medium is linked to the output shaft of motor and it is rotated to driving, and by integrated to cooling medium injection nozzle and this quill shaft, can realize thus and improve antidrip property, dust tightness and cooling medium injection apparatus that can miniaturization.
Patent documentation 1: TOHKEMY 2012-228739 communique
There is the expulsion pressure of cooling medium in the spray nozzle part effect of cooling medium injection apparatus, in the beginning of spraying and while stopping, have the situation that produces water hammer, require to have sufficient reliability and durability.In addition, when the position of rotation of Control Nozzle, the origin position of nozzle can be easily adjusted in expectation.
Utility model content
The utility model is exactly to have put in view of the above problems, its object is to provide a kind of antidrip property, dust tightness excellence, can miniaturization, reliability and durability are high, and can easily carry out the cooling medium injection apparatus of the adjustment of the origin position of nozzle.
In order to solve above-mentioned problem, the utility model of technical scheme 1 relates to a kind of cooling medium injection apparatus, and this cooling medium injection apparatus possesses: nozzle, this nozzle ejection cooling medium, and motor, this motor is adjusted the anglec of rotation of said nozzle, and above-mentioned cooling medium injection apparatus is characterised in that, and above-mentioned cooling medium injection apparatus possesses: housing, quill shaft, this quill shaft with the mode that can rotate liquid-tight be inserted in above-mentioned housing, and be formed with cooling medium path in inside, through hole, this through hole is arranged at the sidewall of above-mentioned quill shaft, and entry, this entry is arranged at above-mentioned housing, and be communicated with above-mentioned cooling medium path via above-mentioned through hole, one end of above-mentioned quill shaft and the output shaft of said motor are configured in above coaxial and link together, said nozzle is installed on the other end of above-mentioned quill shaft, and leading section is towards with respect to roughly rectangular direction of above-mentioned quill shaft, there is the fixed cell being fixed at an arbitrary position with respect to above-mentioned quill shaft in direction of rotation, the path being communicated with the cooling medium stream of above-mentioned quill shaft, with connecting portion between the nozzle passage of the front opening of said nozzle forms bending smoothly stream.
The cooling medium injection apparatus of the utility model of technical scheme 2 is characterised in that, in the structure of technique scheme 1, is provided with the origin position sensor of the origin position that detects above-mentioned quill shaft at above-mentioned quill shaft.
The cooling medium injection apparatus of the utility model of technical scheme 3 is characterised in that, in the structure of technique scheme 1 or 2, said nozzle has the cylindrical portion of inserting for an end of above-mentioned quill shaft, and above-mentioned fixed cell comprises: the circumferential groove that is formed at above-mentioned quill shaft; And the hold-down screw that is screwed into the sidewall of above-mentioned cylindrical portion and engages with above-mentioned circumferential groove.
The cooling medium injection apparatus of the utility model of technical scheme 4 is characterised in that, in the structure of the arbitrary scheme in technique scheme 1~3, above-mentioned cooling medium injection apparatus possesses the shell of storage said motor and above-mentioned housing, and is provided with towards supply gas in above-mentioned shell and will in above-mentioned shell, maintains the gas feed unit of malleation.
According to the cooling medium injection apparatus of the utility model of technical scheme 1, can realize miniaturization, thereby and can reduce the position that need to seal and can improve antidrip property and dust tightness.In addition, owing to can utilizing fixed cell that nozzle is fixed in position arbitrarily in direction of rotation, therefore can easily carry out the adjustment of the origin position of nozzle.And, thereby can make the level and smooth effect that suppresses water attack of flowing of cooling medium by bending stream.
According to the cooling medium injection apparatus of the utility model of technical scheme 2, can utilize the origin position of origin position sensor direct-detection quill shaft, can utilize fixed cell to adjust the origin position of nozzle with respect to the detection position of origin position sensor.
According to the cooling medium injection apparatus of the utility model of technical scheme 3, by engaging between the circumferential groove of quill shaft and hold-down screw, can nozzle be fixed in position arbitrarily in direction of rotation with respect to quill shaft, and can effectively prevent deviating from of nozzle.
According to the cooling medium injection apparatus of the utility model of technical scheme 4, by maintaining malleation in shell, can prevent in the spittle and foreign matter intrusion shell of cooling medium.
Brief description of the drawings
Fig. 1 is the longitudinal section of the cooling medium injection apparatus of the 1st embodiment of the present utility model.
Fig. 2 is the longitudinal section of the nozzle segment of the cooling medium injection apparatus of the 2nd embodiment of the present utility model.
Detailed description of the invention
Below, based on accompanying drawing, embodiment of the present utility model is at length described.
With reference to Fig. 1, the 1st embodiment of the present utility model is described.
As shown in Figure 1, the cooling medium injection apparatus 1 of present embodiment is to spray the device of cooling medium for being installed on numerical control (NC) lathes such as NC drilling machine, NC milling machine, NC lathe, machining center towards working position, in the interior storage flap nozzle of shell 2 unit 3 and motor 4 and integrated (blocking).
Shell 2 is received flap nozzle unit 3 and motor 4 in the main body of case shape that is roughly rectangular-shaped and a side opening, and can carry out airtight to inside by utilizing lid closed peristome.Thereby between the end of the inside of shell 2 and flap nozzle unit 3, be provided with gap and be formed with transducer room 5.And, be provided with rib 2A etc. at the inner surface of shell 2 concavo-convex, thereby and between flap nozzle unit 3 and motor 4, be formed with the gap of heat transmission.Shell 2 can use the suitable material such as synthetic resin, aluminium alloy to form.In addition, in order to be installed on lathe etc., can support, the installation portion with bolt hole, screw hole etc. be suitably set at shell 2.
Flap nozzle unit 3 possesses housing 6.Housing 6 has the roughly outer shape of cuboid, and is through with by the diameter holes 7A of central portion and the large footpath hole 7B at both ends, the peristome with ladder that 7C forms.At the large footpath at two ends hole 7B, 7C, respectively liquid-tightly chimeric have have than the central bullport 8A of diameter holes 7A path and the guide member of 9A 8,9.The quill shaft 11 that connects housing 6 with the mode that can rotate liquid-tight be inserted in bullport 8A, the 9A of guide member 8,9.Thus, between the diameter holes 7A of housing 6 and quill shaft 11, be formed with nozzle box 10.10Ce end, nozzle box at guide member 8,9 is formed with the tapering 8B, the 9B that are connected with nozzle box 10.Housing 6 is formed by suitable materials such as synthetic resin, and can suitably implement loss of weight.
Quill shaft 11 by bearing 12,13 supporting of both sides of guide member 8,9 of large footpath hole 7B, 7C that is entrenched in housing 6 for rotating.Between bullport 8A, the 9A of quill shaft 11 and guide member 8,9, sealed by O type ring 14,15.O type ring 14,15 is provided with multiple and forms multi-stage sealed.Quill shaft 11 passes through transducer room 5, and connects the opening 16 of the end that is arranged at shell 2 towards the outside extension of shell 2.
Be formed with the cooling medium path 17 extending along its axle center at quill shaft 11, the leading section opening that extend in the outside towards shell 2 of quill shaft 11 end of cooling medium path 17, and the end of motor 4 sides is blocked.And, be formed through multiple through holes 18 that cooling medium path 17 is communicated with nozzle box 10 at the sidewall of quill shaft 11.Be provided with the entry 19 being communicated with nozzle box 10 at the sidewall of housing 6, entry 19 is outstanding from housing 6, and connects the opening 20 of the sidewall that is arranged at shell 2 towards the outside extension of shell 2.
End in motor 4 sides of quill shaft 11 is formed with linking part 21.The shaft coupling 24 engaging with linking part 21 is pressed into the output shaft 23 in motor 4.The leading section of output shaft 23 connects shaft coupling 24 outstanding.The leading section of the linking part 21 of quill shaft 11 is formed as convex by opposite trimming, and is provided with to receive from the hole 21A of the leading section of the outstanding output shaft 23 of shaft coupling 24 at central part and is formed as forked.Shaft coupling 24 is formed as the concave shape of the slot part with the leading section that is formed as convex of receiving linking part 21.And then, transmit revolving force by being fastened between quill shaft 11 and the output shaft 23 of motor 4 of linking part 21 and shaft coupling 24.In the end of housing 6, be combined with motor 4 via bonded block 22, housing 6 is integrated with motor 4.Bonded block 22 by quill shaft 11 and the output shaft 23 of motor 4 be positioned at coaxial on.Between bonded block 22 and housing 6 and motor 4, sealed by O type ring 22A, 22B respectively.In addition, the shape that is installed on the shaft coupling 24 of the linking part 21 of quill shaft 11 and the output shaft 23 of motor 4 is not limited to above-mentioned opposite trimming shape, as long as can transmit the shape of revolving force between them, can be also other shapes.
Motor 4 can be controlled the anglec of rotation of output shaft 23, can be known servo motor or stepper motor.And, as stepper motor, can use variable reluctance type, permanet magnet type or the mixed type that combines in any, but in the present embodiment, for the stepping angle that allows to adjust is fully little, adopt mixed type stepper motor.
By across seal 25 (rubber washer etc.) and packing ring 26, pipe joint 27 being screwed in the opening 20 that connects shell 2 and extending the threaded portion 19A of the periphery that projects to outside entry 19, the housing 6 after integrated with motor 4 is fixed in shell 2 together with motor 4.The gap projecting between outside quill shaft 11 and the opening 16 of shell 2 from the opening 16 of shell 2 is sealed by the lip shape seal 28 that is installed on quill shaft 11.
In transducer room 5, be provided with the origin position sensor 29 of the origin position that detects quill shaft 11.Origin position sensor 29 is by being fixed on the magnet retainer 29A of quill shaft 11 and element 29B opposed with magnet retainer 29A and that be fixed on shell 2 sides forms, and the variation in the magnetic field that magnet and the Hall element etc. based on being installed on these parts forms etc. detects the origin position of quill shafts 11.The wire (not shown) that is connected in motor 4 and origin position sensor 29 is connected in outside control circuit (not shown) via the connector (not shown) that is arranged at shell 2.
At shell 2, the gas supply port 30 (gas feed unit) towards shell 2 interior supply gas can be installed.And then, by connect air hose (not shown) at gas supply port 30, will in shell 2, maintain all the time malleation towards shell 2 supply gas, can prevent that the foreign matter such as the spittle, small smear metal of cooling medium from invading in shell 2.
At the leading section that projects to outside quill shaft 11 from shell 2, the nozzle 31 towards right angle orientation with respect to quill shaft 11 is installed.Nozzle 31 is to be embedded in the installation portion that roughly has round-ended cylinder shape 32 of quill shaft 11 and parts that the spray nozzle part 33 of tapering shape that extends from installation portion 32 towards right angle orientation forms as one.In installation portion 32, be formed as by the stairstepping forming with the hole 32A of the bottom side of cooling medium path 17 same diameter of quill shaft 11 with the hole 32B of the peristome side of the external diameter same diameter of quill shaft 11.And then, in the time that quill shaft 11 is inserted in the hole 32B of peristome side, the leading section of quill shaft 11 is connected to the end difference between hole 32A, 32B, thus, the insertion position of quill shaft is prescribed, and the inner peripheral surface of the cooling medium path 17 of quill shaft 11 and the connecting portion of hole 32A is formed as not having the poor the same face of ladder.
The bottom 34 of the hole 32A of installation portion 32 is formed as roughly hemispherical.Spray nozzle part 33 be formed with an end at the roughly hemispheric bottom of installation portion 32 34 openings, the other end the nozzle passage 35 at the path of the leading section opening of spray nozzle part 33.Roughly hemispherical by bottom 34 is formed as, the path being communicated with cooling medium stream that is the hole 32A of installation portion 32 and the nozzle passage 35 of spray nozzle part 33 are connected by bending smoothly stream.In addition, the shape of the bottom 34 of installation portion 32 except above-mentioned hemispherical, as long as the shape of utilizing bending smoothly stream to be connected with nozzle passage 35 the hole 32A of installation portion 32.
Be formed with the seal groove 37 for the ring-type of mounting O-shaped ring 36 at the front end peripheral part of quill shaft 11, in addition, comparing seal groove 37 and be formed with by the position of base portion the holddown groove 38 of ring-type.On the sidewall of the installation portion 32 of nozzle 31, be formed through opposed to each other screw hole 39 with holddown groove 38.And then, assemble O type ring 36 by the seal groove 37 at quill shaft 11, the leading section of quill shaft 11 is inserted in to the hole 32B of the installation portion 32 of nozzle 31, be screwed into hold-down screw 40 at screw hole 39, and make its leading section engage and press with the holddown groove 38 of quill shaft 11, nozzle 31 is fixed on to quill shaft 11.
Below the effect of the present embodiment forming is in the above described manner described.
Cooling medium injection apparatus 1 is so that nozzle 31 is installed on the automatic machine tools such as NC lathe, machining center towards the state of suitable direction.And entry 19 is connected in the supply source of the cooling medium that comprises pump etc. via pipe joint 27, motor 4 and origin position sensor 29 are connected in control circuit via the connector that is arranged at shell 2.
And then, supply with cooling medium towards entry 19, and spray by hole 32A and the nozzle passage 35 of nozzle box 10, through hole 18, cooling medium path 17, nozzle 31.The output shaft 23 of motor 4 is rotated, control the anglec of rotation of the quill shaft 11 that is linked to output shaft 23, can adjust thus the anglec of rotation of nozzle 31, cooling medium can be sprayed towards desirable direction.In addition, also can omit the nozzle box 10 being formed in housing 6, the through hole 18 from entry 19 towards quill shaft 11 is directly supplied with cooling medium.
Thus, the variation of the instrument front position that can cause according to the replacing because of instrument of automatic machine tool, because of machining cause from nozzle to Working position till the variation etc. of distance adjust the anglec of rotation of nozzle 31, correctly spray cooling medium towards working position.Now, owing to using stepper motor as motor 4, therefore can carry out the control based on open loop, carry out the situation of the control based on closed loop with using servo motor and compare, can simplify the drive circuit of motor.
When the anglec of rotation of Control Nozzle 31, except in order to make cooling medium exactly with machining position collision and regulate the spray angle of nozzle, by in the mode of wiping the smear metal of working position by spraying cooling medium away, nozzle 31 is moved at wider angular range, can promote removing of smear metal.And the rotation of nozzle can be carried out with constant speed, or make velocity variations while carry out.And, by using stepper motor as motor 4, by the control code of the auxiliary movement for carrying out NC lathe (so-called M code) is used as the control signal of motor 4, can make the anglec of rotation of nozzle 31 follow the control of working position, therefore can make the control circuit of cooling medium injection apparatus simplify.
By cooling medium is circulated in the cooling medium path 17 of the inside of the quill shaft 11 that nozzle 31 is rotated, can realize the shortening of the miniaturization of cooling medium injection apparatus 1, particularly axial dimension, and, the position that need to seal can be reduced, thereby antidrip property and dust tightness can be improved.And, by gas supply port 30 is set, make in shell 2 to be always malleation towards the interior supply gas of shell 2, can effectively prevent that the foreign matter such as the spittle and small smear metal of cooling medium from invading shell 2.
The initial point adjustment (0 adjustment) of the initial position of the anglec of rotation of the output shaft 23 of motor 4 (stepper motor) can be based on being installed on quill shaft 11 the detection position of origin position sensor 29 carry out.Now, nozzle 31 is fixed on quill shaft 11 by hold-down screw 40, can be fixed on origin position arbitrarily with respect to the quill shaft 11 that origin position sensor 29 is installed, therefore, just can easily carry out the initial point adjustment of nozzle 31 without the fixed position that changes the origin position sensor 29 in shell 2.
Due to the hole 32A of the nozzle 31 being communicated with the cooling medium path 17 of quill shaft 11, and the connecting portion meeting at right angles between the nozzle passage 35 configuring with respect to this hole 32A is formed as level and smooth curved shape, therefore, resistance when cooling medium circulation is little, and, be difficult to produce water hammer in the beginning of the injection of cooling medium and while stopping, therefore can alleviate the cooling medium that puts on nozzle 31 fluid force, prevent nozzle 31 deviate from, improve durability and reliability.
Next, with reference to Fig. 2, the 2nd embodiment of the present utility model is described.In addition, present embodiment, with respect to only nozzle difference of above-mentioned the 1st embodiment, therefore, only illustrates the mounting portion of nozzle, uses identical reference number for identical part, only different piece is at length described.
As shown in Figure 2, in the present embodiment, for the nozzle 41 of leading section that is installed on quill shaft 11, installation portion 42 and spray nozzle part 43 are independently.The hole 42B of the bottom side of installation portion 42 is towards right angle orientation bending, and has peristome 44 in the side surface part of installation portion 42.The base end part of spray nozzle part 43 is screwed into peristome 44 and is installed in installation portion 42.Connecting portion between the hole 42A and the peristome 44 that bend to right angle orientation is formed with circular arc (R), forms bending smoothly stream.
The installation portion 42 of nozzle 41 is identical with above-mentioned the 1st embodiment, by quill shaft 11 being inserted in to hole 42B and hold-down screw 40 being screwed into screw hole 39, it is engaged with holddown groove 38, and the installation portion 42 of nozzle 41 is fixed in quill shaft 11.Be provided with the nozzle passage 45 at its leading section opening at spray nozzle part 43.
Thus, can play the action effect identical with above-mentioned the 1st embodiment.And installation portion 42 and spray nozzle part 43 are independent mutually owing to making, therefore can easily change by changing spray nozzle part 43 the front end shape of nozzle according to used processing equipment etc.
Description of reference numerals:
1: cooling medium injection apparatus; 4: motor; 6: housing; 11: quill shaft; 17: cooling medium path; 18: through hole; 19: entry; 31: nozzle; 32A: hole (path); 35: nozzle passage.

Claims (4)

1. a cooling medium injection apparatus,
This cooling medium injection apparatus possesses:
Spray the nozzle of cooling medium; And
Adjust the motor of the anglec of rotation of described nozzle,
Described cooling medium injection apparatus is characterised in that,
Described cooling medium injection apparatus possesses:
Housing; Quill shaft, this quill shaft with the mode that can rotate liquid-tight be inserted in described housing, and be formed with cooling medium path in inside; Through hole, this through hole is arranged at the sidewall of described quill shaft; And entry, this entry is arranged at described housing, and is communicated with described cooling medium path via described through hole,
One end of described quill shaft and the output shaft of described motor are configured in above coaxial and link together,
Described nozzle is installed on the other end of described quill shaft and leading section towards with respect to roughly rectangular direction of described quill shaft, have the fixed cell being fixed at an arbitrary position in direction of rotation with respect to described quill shaft, the path being communicated with the cooling medium stream of described quill shaft and the connecting portion between the nozzle passage of the front opening of described nozzle form bending smoothly stream.
2. cooling medium injection apparatus according to claim 1, is characterized in that,
Be provided with the origin position sensor of the origin position that detects described quill shaft at described quill shaft.
3. cooling medium injection apparatus according to claim 1 and 2, is characterized in that,
Described nozzle has the cylindrical portion of inserting for an end of described quill shaft,
Described fixed cell comprises: the circumferential groove that is formed at described quill shaft; And the hold-down screw that is screwed into the sidewall of described cylindrical portion and engages with described circumferential groove.
4. cooling medium injection apparatus according to claim 1 and 2, is characterized in that,
Described cooling medium injection apparatus possesses the shell of storage described motor and described housing, and is provided with towards supply gas in described shell and will in described shell, maintains the gas feed unit of malleation.
CN201420275358.0U 2013-09-30 2014-05-27 Cooling medium jetting device Expired - Lifetime CN203901002U (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2013204180A JP2015066647A (en) 2013-09-30 2013-09-30 Coolant spray device
JP2013-204180 2013-09-30

Publications (1)

Publication Number Publication Date
CN203901002U true CN203901002U (en) 2014-10-29

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CN201420275358.0U Expired - Lifetime CN203901002U (en) 2013-09-30 2014-05-27 Cooling medium jetting device

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CN (1) CN203901002U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109759892A (en) * 2019-03-13 2019-05-17 河南理工大学 A kind of tool geometry angle is adjustable to spray integrated apparatus with cutting fluid

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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR102300493B1 (en) * 2019-11-13 2021-09-13 예술불꽃화랑 주식회사 Rotatable flame machine

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JPS59169559A (en) * 1983-03-17 1984-09-25 Nissan Motor Co Ltd Rectifier for position of nozzle of spray gun
EP1190815B1 (en) * 2000-09-21 2003-12-03 Forkardt Schweiz AG Method and device for dynamic lubrication of a power chuck
GB0212775D0 (en) * 2002-05-31 2002-07-10 Westwind Air Bearings Ltd Machine apparatus and methods
JP5815274B2 (en) * 2011-04-25 2015-11-17 ミネベア株式会社 Coolant injection device
JP5913915B2 (en) * 2011-11-09 2016-04-27 日野自動車株式会社 Engine cylinder block structure

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109759892A (en) * 2019-03-13 2019-05-17 河南理工大学 A kind of tool geometry angle is adjustable to spray integrated apparatus with cutting fluid

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