WO2009122763A1 - 工作機械の工具密着状態検出装置 - Google Patents
工作機械の工具密着状態検出装置 Download PDFInfo
- Publication number
- WO2009122763A1 WO2009122763A1 PCT/JP2009/050704 JP2009050704W WO2009122763A1 WO 2009122763 A1 WO2009122763 A1 WO 2009122763A1 JP 2009050704 W JP2009050704 W JP 2009050704W WO 2009122763 A1 WO2009122763 A1 WO 2009122763A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- tool
- main shaft
- contact state
- spindle
- gas
- Prior art date
Links
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/002—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders
- B23Q17/005—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders by measuring a force, a pressure or a deformation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/002—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders
- B23Q17/003—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring the holding action of work or tool holders by measuring a position
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T279/00—Chucks or sockets
- Y10T279/12—Chucks or sockets with fluid-pressure actuator
- Y10T279/1208—Chucks or sockets with fluid-pressure actuator with measuring, indicating or control means
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T409/00—Gear cutting, milling, or planing
- Y10T409/30—Milling
- Y10T409/306664—Milling including means to infeed rotary cutter toward work
- Y10T409/307224—Milling including means to infeed rotary cutter toward work with infeed control means energized in response to activator stimulated by condition sensor
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T409/00—Gear cutting, milling, or planing
- Y10T409/30—Milling
- Y10T409/306664—Milling including means to infeed rotary cutter toward work
- Y10T409/307224—Milling including means to infeed rotary cutter toward work with infeed control means energized in response to activator stimulated by condition sensor
- Y10T409/30728—In response to cutter condition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T409/00—Gear cutting, milling, or planing
- Y10T409/30—Milling
- Y10T409/309352—Cutter spindle or spindle support
Definitions
- the present invention relates to a tool contact state detection device for a machine tool that detects whether or not a tool or a tool holder to which a tool is attached is attached in close contact with a spindle.
- Machine tools that perform machining while automatically changing tools between the tool magazine and the spindle are widely used.
- chips generated by machining may adhere to the tool or the tapered portion of the tool holder to which the tool is attached or the seating surface of the main shaft on which the tapered portion is seated.
- the taper portion is not properly adhered to the seating surface of the main shaft. Therefore, accurate positioning of the tool is not performed. As a result, the machining accuracy is adversely affected, and in some cases, the tool and the spindle may be damaged.
- a conventional machine tool is provided with a tool contact state detection device that detects whether or not a tool or a tool holder is mounted in close contact with the spindle.
- a tool contact state detection device that detects whether or not a tool or a tool holder is mounted in close contact with the spindle.
- the contact confirmation air is injected from the seating surface, and the pressure change of this air pressure is detected.
- the pressure change of this air pressure is detected.
- Patent Document 1 since air for confirmation of close contact is supplied into the main shaft via the rotary joint, the sliding portion between the fixed rotary joint and the rotating main shaft is worn, Air leakage will occur. This makes it difficult to stably supply air to the seating surface of the main shaft, and therefore, particularly when minute chips are bitten, there is a possibility that it cannot be detected with high accuracy.
- a spool is slidable in the radial direction between the housing-side air passage and the main shaft-side air passage, and the spool is attached to the spring by the supplied contact confirmation air.
- the air passages on both sides communicate with each other.
- the air pressure must be set to such an extent that the spool resists the biasing force of the spring, and the air pressure needs to be increased more than necessary.
- An object of the present invention is to provide a tool contact state detection device for a machine tool that can be used.
- a tool contact state detection device for a machine tool for solving the above-described problem, A spindle that is rotatably supported by the spindle head and performs predetermined processing on a workpiece, or a spindle that detachably attaches a tool holder to which the tool is attached to a seating surface; A cylinder part formed on the spindle head and slidably receiving a piston member; Elastic means for biasing the piston member; Fluid supply means for supplying fluid to the cylinder portion when the rotation of the spindle is stopped and causing the piston member to abut against the spindle head and the spindle against the biasing force of the elastic means; , When fluid is supplied to the cylinder portion by the fluid supply means and the piston member abuts against the spindle head and the spindle against the urging force of the elastic means, the spindle head passes through the piston member.
- Gas supply means for supplying gas to the main shaft;
- a plurality of gas injection holes formed on the seating surface for injecting the gas supplied from the gas supply means; Whether the tool or the tool holder and the seating surface are in close contact with each other by detecting the gas pressure of the gas ejected from the gas ejection hole when the tool or the tool holder is mounted on the seating surface
- a tool contact state determining means for determining whether or not.
- a tool contact state detection device for a machine tool according to a second invention that solves the above-described problem,
- the piston member formed in a ring shape is housed in the cylinder portion formed in an annular shape so as to surround the main shaft.
- the gas supply means includes A spindle head side gas passage to which gas is supplied; A main shaft side gas passage formed in the main shaft and connected to the gas injection hole; The piston member is formed of a piston side gas passage that is formed in the piston member and communicates the spindle head side gas passage and the spindle side gas passage.
- the fluid supply means includes A fluid reservoir that is annularly formed to surround the main shaft and is supplied with fluid; It consists of a fluid passage connected between the fluid reservoir part and the cylinder part.
- a tool contact state detection device for a machine tool according to a fifth invention for solving the above-described problems The fluid supply means and the gas supply means are provided in the same phase in the circumferential direction of the main shaft.
- a tool contact state detection device for a machine tool for solving the above-described problems,
- the fluid supply means is provided on a radially outer side of the main shaft than the gas supply means.
- a tool contact state detection device for a machine tool according to a seventh invention for solving the above-described problems The gas injection holes are formed at equiangular intervals in the circumferential direction of the main shaft.
- the gas supply means for supplying gas to the gas injection holes is not contacted between the spindle head and the spindle when the spindle is rotated. Therefore, wear can be prevented. As a result, even if the rotation of the spindle is stopped and the gas supply means supplies gas, gas can be stably supplied without causing gas leakage. Can be detected with high accuracy. Moreover, since the machining to the main shaft is reduced, the rigidity of the main shaft can be improved. Further, since the cylinder portion on which the piston member slides is provided in the spindle head, the spindle head and the spindle are not attached to the outside, and the degree of freedom in designing the tool and the tool holder can be improved.
- FIG. 1 is a cross-sectional side view of a front end of a spindle device of a machine tool provided with a tool contact state detecting device according to an embodiment of the present invention
- FIG. 2 is a front view of the spindle head
- FIG. It is the figure which showed a mode.
- a spindle device 1 of a machine tool shown in FIG. 1 is detachably mounted with a tool 2 for performing predetermined machining on a workpiece (workpiece) (not shown).
- the spindle device 1 is provided with a cylindrical spindle head 11, and the spindle 13 is rotatably supported in the spindle head 11 via a plurality of bearings 12.
- the main shaft 13 has a tapered hole (sitting surface) 13b and a shaft hole 13c formed continuously on its axis.
- the taper hole 13b is formed such that its inner diameter gradually decreases toward the rear end side of the main shaft.
- the tip end of the taper hole 13b opens to the tip end surface (sitting surface) 13a, and the rear end communicates with the shaft hole 13c. ing.
- the rod 14 is supported in the shaft hole 13c of the main shaft 13 so as to be slidable in the axial direction.
- the rod 14 rotates together with the main shaft 13 and is urged toward the rear end side of the main shaft by an urging means (not shown).
- the end of the main shaft is resisted by the urging force by a hydraulic cylinder (not shown). It is possible to move to the side.
- a fitting member 15 is provided at the tip of the rod 14, and a fitting hole 15a is formed at the tip of the fitting member 15. Further, a support member 16 is provided on the outer peripheral portion of the rod 14, and a pressing member 17 is supported on the support member 16 so as to be slidable in the axial direction of the main shaft 13. A spring member 18 is interposed between the support member 16 and the pressing member 17 in a compressed state. That is, the pressing member 17 is in a state of being urged toward the tip end side of the main shaft.
- a collet 19 is disposed on the radially outer side of the fitting member 15.
- An engaging portion 19a is formed at the tip of the collet 19, and an inclined surface 19b is formed at the rear end.
- the rear end of the collet 19 is accommodated in the accommodating portion 13 d of the main shaft 13, and the inclined surface 19 b can be slidably contacted with an inclined surface 17 a formed at the tip of the pressing member 17. That is, the collet 19 is slidable in the radial direction of the main shaft 13.
- annular cylinder portion 20 is formed on the tip side of the spindle head 11.
- a ring-shaped piston member 21 is accommodated in the cylinder portion 20 so as to be slidable in the axial direction of the main shaft head 11 (main shaft 12).
- Air passages (piston-side gas passages) 21a, 21b, 21c are formed in the piston member 21, and the air passages 21a, 21b, 21c extend in the radial direction of the piston member 21 and have circumferential directions. Are provided at equiangular intervals. Both ends of the air passages 21 a, 21 b, and 21 c are opened on the outer wall on the rear end side of the main shaft of the piston member 21.
- An O-ring (elastic means) 22 that is an elastic body is provided on the inner wall on the rear end side of the main shaft of the cylinder portion 20 so as to be sandwiched between both ends of the air passages 21a, 21b, 21c. That is, the piston member 21 is biased toward the tip end side of the main shaft.
- air passages (main shaft head side gas passages) 24a, 24b, 24c communicate with the inner wall of the main shaft rear end side on the outer side in the radial direction from the O-ring 22.
- the air passages 24 a, 24 b, 24 c extend in the axial direction of the spindle head 11 (main shaft 12) and are provided at equiangular intervals in the circumferential direction, and one end thereof is an air passage of the piston member 21. It is opened so as to face one end of 21a, 21b, 21c.
- the other ends of the air passages 24a, 24b, and 24c are connected to an air supply device 23 that supplies air, and have air pressure detection sensors 25a, 25b, and 25c that detect air pressure in the middle thereof. .
- air injection holes 27a, 27b, and 27c are formed in the tip surface 13a of the main shaft 13.
- the air injection holes 27a, 27b, and 27c are opened at equal angular intervals in the circumferential direction of the main shaft 13, and air passages (main shafts) extending in the radial direction of the main shaft 13 are provided in the air injection holes 27a, 27b, and 27c.
- Side gas passages) 26a, 26b, 26c are connected.
- the air passages 26 a, 26 b, 26 c communicate with the inner wall of the main shaft rear end side on the radially inner side of the O-ring 22 in the cylinder portion 20, and one end of the air passages 26 a, 26 b, 26 c It is opened so as to face the other end.
- annular oil reservoir (fluid reservoir) 29 is formed on the radially outer side of the cylinder portion 20 on the tip side of the spindle head 11.
- Hydraulic passages (fluid passages) 30a, 30b, and 30c are connected to the front end side of the main shaft of the oil reservoir 29, and a hydraulic pressure supply device 28 that supplies hydraulic pressure is connected to the rear end side of the main shaft.
- the hydraulic passages 30a, 30b, and 30c extend in the radial direction of the spindle head 11 (spindle 12), are provided at equal angular intervals in the circumferential direction, and in phase with the air injection holes 27a, 27b, and 27c. And communicates with the inner wall of the cylinder portion 20 at the tip end side.
- the hydraulic pressure is supplied from the hydraulic pressure supply device 28 to the cylinder portion 20 via the oil reservoir portion 29 and the hydraulic passages 30a, 30b, 30c, so that the piston member 21 becomes O
- the air passages 21a, 21b, and 21c communicate with the air passages 24a, 24b, and 24c and the air passages 26a, 26b, and 26c because they move toward the rear end side of the main shaft against the urging force of the ring 22. (See FIG. 1).
- the air supplied by the air supply device 23 flows through the air passages 21a, 21b, 21c, the air passages 24a, 24b, 24c, and the air passages 26a, 26b, 26c. It is injected from 27c.
- the air passages 21a, 21b, 21c, the air passages 24a, 24b, 24c, the air passages 26a, 26b, 26c, the air supply device 23, the air injection holes 27a, 27b, 27c, etc. constitute gas supply means.
- the hydraulic supply device 28, the oil reservoir 29, the hydraulic passages 30a, 30b, 30c, etc. constitute fluid supply means.
- the tool 2 is of a two-surface constrained type, and has an end surface 41 and a taper portion 42 that are close contact surfaces.
- the end surface 41 is in close contact with the tip surface 13 a of the main shaft 13.
- the tapered portion 42 is in close contact with the tapered hole 13b of the main shaft 13, and is formed such that its outer diameter gradually decreases toward the rear end side of the main shaft.
- a protruding portion 42 a is formed at the tip of the inner peripheral surface of the tapered portion 42, and this protruding portion 42 a is engaged with the engaging portion a of the collet 19.
- a fitting shaft portion 43 is provided at the bottom of the taper portion 42, and the fitting shaft portion 43 is fitted into the fitting hole 15 a of the fitting member 15.
- the replaced tool 2 is conveyed to the spindle 13 by an automatic tool changer.
- the fitting shaft portion 43 is fitted (attached) to the fitting hole 15a of the fitting member 15 and the tapered portion 42 of the tool 2 starts to be fitted (attached) to the tapered hole 13b of the main shaft 13, the biasing means.
- the urging force moves the rod 14 to the rear end side of the main shaft.
- the collet 19 moves radially outward of the main shaft 13 by the cooperation of the inner wall of the accommodating portion 13 c of the main shaft 13, the rear end of the fitting member 15, and the inclined surface 17 a of the pressing member 17.
- the engaging portion 19a engages with the raised portion 42a of the tapered portion 42.
- the hydraulic pressure supply device 28 is driven, and the hydraulic pressure is supplied to the cylinder portion 20 via the oil reservoir 29 and the hydraulic passages 30a, 30b, and 30c.
- the piston member 21 moves to the main shaft rear end side against the urging force of the O ring 22, elastically deforms the O ring 22, and the main shaft rear end side of the cylinder portion 20.
- the air passages 21a, 21b, 21c are in close contact with the inner wall, and are in communication with the air passages 24a, 24b, 24c and the air passages 26a, 26b, 26c.
- the air supply device 23 is supplied from the air supply device 23 as soon as the air passages 21a, 21b, 21c communicate with the air passages 24a, 24b, 24c and the air passages 26a, 26b, 26c.
- the air is supplied to the tip end side of the main shaft 13 through the air passages 21a, 21b, 21c, the air passages 24a, 24b, 24c, and the air passages 26a, 26b, 26c, and the air is supplied to the air injection holes 27a, 27b. , 27c.
- the air pressure detection sensors 25a, 25b, and 25c constantly detect the air pressure, and when detecting that all the air pressures have reached a predetermined air pressure, output the detection signals. As a result, it is determined that the end surface 41 and the tapered portion 42 of the tool 2 are in close contact with the tip surface 13a and the tapered hole 13b of the main shaft 13 (tool contact state determination means), and the machining of the workpiece is resumed.
- the air injection holes 27a, 27b, and 27c Since the injected air leaks from between the end surface 41 and the front end surface 13a, at least one of the air pressure detection sensors 25a, 25b, and 25c cannot detect a predetermined air pressure. As a result, no detection signal is output from the air pressure detection sensors 25a, 25b, and 25c that have not been able to detect the predetermined air pressure, so the end surface 41 and the taper portion 42 of the tool 2, the tip surface 13a and the taper hole of the main shaft 13 are not detected. 13b is determined not to be in close contact (tool contact state determination means), and machining of the workpiece is stopped.
- the air supply device 23 since the air supply device 23 is always driven, air leaks from the air passages 24a, 24b, 24c when the hydraulic pressure supply device 28 is not driven. This not only prevents foreign matter from entering the air supply device 23 and the air passages 24a, 24b, and 25c, but the leaked air flows out from the gap between the spindle head 11 and the spindle 13 to the spindle tip side. Therefore, foreign matter intrusion into the spindle head 11 and the spindle 13 is prevented. Furthermore, since the air supply device 23 is always driven, it is not necessary to drive the air supply device 23 every time the air pressure is detected, so that the air pressure rise time is shortened and the air pressure detection sensors 25a, 25b. 25c, the air pressure detection time is shortened.
- the tool contact state detection apparatus which concerns on this invention is applied to the main axis
- shaft 13 the tool holder to which the tool was attached is used as a main axis. It is also possible to apply to the main spindle device to be mounted.
- the air injection holes 27a, 27b, and 27c through which air is injected are formed in the tip end surface 13a of the main shaft 13, but may be formed in the tapered hole 13b that is also a seating surface. Further, four or more air injection holes may be provided.
- the air passages 24a, 24b, 24c branched from the air supply device 23 are provided with the air pressure detection sensors 25a, 25b, 25c, but one air pressure detection sensor is provided in the air passage before branching. It doesn't matter.
- the piston member 21 when the main shaft 13 is rotating, the piston member 21 is retracted by the urging force of the O-ring 22. Will be non-contact and will not wear. Thereby, at the time of air supply after the rotation of the main shaft 13 is stopped, the piston member 21 comes into contact with the main shaft head 11 and the main shaft 13 by the hydraulic pressure supply device 28, and the air passages 21a, 21b, and 21c become the air passages 24a and 24b. 24c and the air passages 26a, 26b, and 26c, there is no risk of air leakage.
- the present invention is applicable to a spindle device of a machine tool that can prevent a tool or a tool holder to which a tool is attached from falling off or loosening.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Sensing Apparatuses (AREA)
- Gripping On Spindles (AREA)
Abstract
Description
主軸ヘッドに回転可能に支持され、被加工物に所定の加工を行う工具、または、前記工具が取り付けられた工具ホルダを着座面に着脱可能に装着する主軸と、
前記主軸ヘッドに形成され、ピストン部材を摺動可能に収容するシリンダ部と、
前記ピストン部材を付勢する弾性手段と、
前記主軸の回転が停止しているときに、前記シリンダ部に流体を供給して、前記ピストン部材を前記弾性手段の付勢力に抗して前記主軸ヘッド及び前記主軸に当接させる流体供給手段と、
前記流体供給手段により流体が前記シリンダ部に供給され、前記ピストン部材が前記弾性手段の付勢力に抗して前記主軸ヘッド及び前記主軸に当接したときに、前記主軸ヘッドから前記ピストン部材を介して前記主軸にガスを供給するガス供給手段と、
前記着座面に複数形成され、前記ガス供給手段から供給されたガスを噴射させるガス噴射孔と、
前記工具または前記工具ホルダが前記着座面に装着されたときに前記ガス噴射孔から噴射されるガスのガス圧を検出することにより、前記工具または前記工具ホルダと前記着座面とが密着しているか否かを判定する工具密着状態判定手段とを備える
ことを特徴とする。
前記主軸を囲むように環状に形成された前記シリンダ部内に、リング状に形成された前記ピストン部材を収納する
ことを特徴とする。
前記ガス供給手段は、
ガスが供給される主軸ヘッド側ガス通路と、
前記主軸に形成され、前記ガス噴射孔に接続される主軸側ガス通路と、
前記ピストン部材に形成され、前記主軸ヘッド側ガス通路と前記主軸側ガス通路とを連通させるピストン側ガス通路とからなる
ことを特徴とする。
前記流体供給手段は、
前記主軸を囲むように環状に形成され、流体が供給される流体溜まり部と、
前記流体溜まり部と前記シリンダ部との間に接続される流体通路とからなる
ことを特徴とする。
前記流体供給手段と前記ガス供給手段とは、前記主軸の周方向において同じ位相に設けられる
ことを特徴とする。
前記流体供給手段は、前記ガス供給手段よりも前記主軸の径方向外側に設けられる
ことを特徴とする。
前記ガス噴射孔は、前記主軸の周方向において等角度間隔で形成される
ことを特徴とする。
Claims (7)
- 主軸ヘッドに回転可能に支持され、被加工物に所定の加工を行う工具、または、前記工具が取り付けられた工具ホルダを着座面に着脱可能に装着する主軸と、
前記主軸ヘッドに形成され、ピストン部材を摺動可能に収容するシリンダ部と、
前記ピストン部材を付勢する弾性手段と、
前記主軸の回転が停止しているときに、前記シリンダ部に流体を供給して、前記ピストン部材を前記弾性手段の付勢力に抗して前記主軸ヘッド及び前記主軸に当接させる流体供給手段と、
前記流体供給手段により流体が前記シリンダ部に供給され、前記ピストン部材が前記弾性手段の付勢力に抗して前記主軸ヘッド及び前記主軸に当接したときに、前記主軸ヘッドから前記ピストン部材を介して前記主軸にガスを供給するガス供給手段と、
前記着座面に複数形成され、前記ガス供給手段から供給されたガスを噴射させるガス噴射孔と、
前記工具または前記工具ホルダが前記着座面に装着されたときに前記ガス噴射孔から噴射されるガスのガス圧を検出することにより、前記工具または前記工具ホルダと前記着座面とが密着しているか否かを判定する工具密着状態判定手段とを備える
ことを特徴とする工作機械の工具密着状態検出装置。 - 請求項1に記載の工作機械の工具密着状態検出装置において、
前記主軸を囲むように環状に形成された前記シリンダ部内に、リング状に形成された前記ピストン部材を収納する
ことを特徴とする工作機械の工具密着状態検出装置。 - 請求項1に記載の工作機械の工具密着状態検出装置において、
前記ガス供給手段は、
ガスが供給される主軸ヘッド側ガス通路と、
前記主軸に形成され、前記ガス噴射孔に接続される主軸側ガス通路と、
前記ピストン部材に形成され、前記主軸ヘッド側ガス通路と前記主軸側ガス通路とを連通させるピストン側ガス通路とからなる
ことを特徴とする工作機械の工具密着状態検出装置。 - 請求項1に記載の工作機械の工具密着状態検出装置において、
前記流体供給手段は、
前記主軸を囲むように環状に形成され、流体が供給される流体溜まり部と、
前記流体溜まり部と前記シリンダ部との間に接続される流体通路とからなる
ことを特徴とする工作機械の工具密着状態検出装置。 - 請求項1に記載の工作機械の工具密着状態検出装置において、
前記流体供給手段と前記ガス供給手段とは、前記主軸の周方向において同じ位相に設けられる
ことを特徴とする工作機械の工具密着状態検出装置。 - 請求項1に記載の工作機械の工具密着状態検出装置において、
前記流体供給手段は、前記ガス供給手段よりも前記主軸の径方向外側に設けられる
ことを特徴とする工作機械の工具密着状態検出装置。 - 請求項1に記載の工作機械の工具密着状態検出装置において、
前記ガス噴射孔は、前記主軸の周方向において等角度間隔で形成される
ことを特徴とする工作機械の工具密着状態検出装置。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP09726643A EP2258503B1 (en) | 2008-03-31 | 2009-01-20 | Tight contact state detector of tool in machine tool |
US12/935,533 US8827608B2 (en) | 2008-03-31 | 2009-01-20 | Tool tight-contact-state detector for machine tool |
CN2009801111776A CN101980811B (zh) | 2008-03-31 | 2009-01-20 | 用于机床的刀具紧密接触状态检测器 |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2008-089531 | 2008-03-31 | ||
JP2008089531A JP4764450B2 (ja) | 2008-03-31 | 2008-03-31 | 工作機械の工具密着状態検出装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2009122763A1 true WO2009122763A1 (ja) | 2009-10-08 |
Family
ID=41135163
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2009/050704 WO2009122763A1 (ja) | 2008-03-31 | 2009-01-20 | 工作機械の工具密着状態検出装置 |
Country Status (7)
Country | Link |
---|---|
US (1) | US8827608B2 (ja) |
EP (1) | EP2258503B1 (ja) |
JP (1) | JP4764450B2 (ja) |
KR (1) | KR101153029B1 (ja) |
CN (1) | CN101980811B (ja) |
TW (1) | TW200946276A (ja) |
WO (1) | WO2009122763A1 (ja) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019116573A1 (ja) * | 2017-12-15 | 2019-06-20 | マキノジェイ株式会社 | 工作機械の主軸装置 |
US20190308251A1 (en) * | 2018-04-04 | 2019-10-10 | Dmg Mori Co., Ltd. | Machine tool |
Families Citing this family (16)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP2455186A1 (de) * | 2010-11-17 | 2012-05-23 | Schneider GmbH & Co. KG | Vorrichtung und Verfahren zum Bearbeiten einer optischen Linse mit automatischer Identifizierung der optischen Linse |
CN103752877A (zh) * | 2013-12-11 | 2014-04-30 | 山东鲁南机床有限公司 | 一种卡盘夹持精密定位确认装置 |
JP6340286B2 (ja) * | 2014-08-29 | 2018-06-06 | 三菱重工工作機械株式会社 | 主軸装置および当該主軸装置を備えた工作機械 |
DE102014112819A1 (de) * | 2014-09-05 | 2016-03-10 | Gebr. Heller Maschinenfabrik Gmbh | Arbeitsspindel mit Plananlagemessung und Werkzeugmaschine mit einer solchen |
CN107405749B (zh) * | 2015-03-02 | 2019-04-09 | 株式会社牧野铣床制作所 | 刀具安装评价方法及机床 |
CN104668601B (zh) * | 2015-03-09 | 2016-10-26 | 辽宁西格马数控机床有限公司 | 立式加工中心的车刀定位座 |
CN104607678B (zh) * | 2015-03-09 | 2016-08-03 | 辽宁西格马数控机床有限公司 | 五轴车铣复合立式加工中心 |
EP3091406B1 (en) * | 2015-05-08 | 2017-12-20 | Sandvik Intellectual Property AB | A method of determining pull-out of a cutting tool and a rotatable tool holder for a cutting tool |
JP6144320B2 (ja) * | 2015-11-17 | 2017-06-07 | Ntn株式会社 | ローディング機構及び工作機械システム |
JP6742208B2 (ja) * | 2016-09-16 | 2020-08-19 | シチズン時計株式会社 | 工作機械の主軸装置 |
CN109175424A (zh) * | 2018-10-09 | 2019-01-11 | 杭州泽正机械有限公司 | 一种卡盘的水气双通路结构 |
JP6998288B2 (ja) * | 2018-10-31 | 2022-01-18 | 日精ホンママシナリー株式会社 | 工具着座確認機能付き回転工具用主軸 |
CN109968078B (zh) * | 2019-03-29 | 2023-09-05 | 浙江辛子精工机械股份有限公司 | 一种高可靠性低成本的气密性夹具及其使用方法 |
KR102365734B1 (ko) * | 2020-03-03 | 2022-02-21 | 주식회사 금호정공 | 디스크형 제품 고정용 콜렛 척 |
CN113385961A (zh) * | 2021-06-30 | 2021-09-14 | 台州科技职业学院 | 一种五轴加工中心的刀具锁紧装置及换刀方法 |
KR20240042841A (ko) | 2022-09-26 | 2024-04-02 | 현대위아 주식회사 | 공작기계의 공구홀더 밀착상태 확인장치 |
Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH065851U (ja) * | 1992-06-29 | 1994-01-25 | 村田機械株式会社 | 回転工具密着確認装置 |
JPH10225845A (ja) | 1997-02-11 | 1998-08-25 | Howa Mach Ltd | 工作機械の主軸装置 |
JP2001259906A (ja) | 2000-03-17 | 2001-09-25 | Toyoda Mach Works Ltd | 工具装着確認装置 |
JP2002103183A (ja) * | 2000-10-03 | 2002-04-09 | Enshu Ltd | 回転工具保持確認装置 |
JP2005103735A (ja) * | 2003-10-01 | 2005-04-21 | Mori Seiki Co Ltd | 工具装着確認装置 |
JP2008055522A (ja) * | 2006-08-29 | 2008-03-13 | Denso Corp | 工作機械及び工作機械の異物挟み込み判定方法 |
Family Cites Families (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4504824A (en) * | 1982-11-17 | 1985-03-12 | Houdaille Industries, Inc. | Tool detection system |
DE3722197A1 (de) * | 1987-07-04 | 1989-01-12 | Krupp Gmbh | Verfahren zur kontrolle der position eines werkzeugtraegers in dem werkzeughalter einer werkzeugwechseleinrichtung sowie zur reinigung der kupplungsflaechen zwischen werkzeughalter und werkzeugtraeger und vorrichtung zur durchfuehrung dieses verfahrens |
DE3930070C2 (de) * | 1989-09-09 | 1993-12-16 | Chiron Werke Gmbh | Werkzeugmaschine mit ausblasbarer Werkzeugaufnahme |
JP4896580B2 (ja) | 2005-08-31 | 2012-03-14 | コマツNtc株式会社 | 工作機械における主軸装置への工具ホルダ装着時の異常判定方法及び異常判定装置 |
-
2008
- 2008-03-31 JP JP2008089531A patent/JP4764450B2/ja not_active Expired - Fee Related
-
2009
- 2009-01-20 WO PCT/JP2009/050704 patent/WO2009122763A1/ja active Application Filing
- 2009-01-20 US US12/935,533 patent/US8827608B2/en not_active Expired - Fee Related
- 2009-01-20 CN CN2009801111776A patent/CN101980811B/zh not_active Expired - Fee Related
- 2009-01-20 EP EP09726643A patent/EP2258503B1/en not_active Not-in-force
- 2009-01-20 KR KR1020107021709A patent/KR101153029B1/ko not_active IP Right Cessation
- 2009-01-22 TW TW098102628A patent/TW200946276A/zh unknown
Patent Citations (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH065851U (ja) * | 1992-06-29 | 1994-01-25 | 村田機械株式会社 | 回転工具密着確認装置 |
JPH10225845A (ja) | 1997-02-11 | 1998-08-25 | Howa Mach Ltd | 工作機械の主軸装置 |
JP2001259906A (ja) | 2000-03-17 | 2001-09-25 | Toyoda Mach Works Ltd | 工具装着確認装置 |
JP2002103183A (ja) * | 2000-10-03 | 2002-04-09 | Enshu Ltd | 回転工具保持確認装置 |
JP2005103735A (ja) * | 2003-10-01 | 2005-04-21 | Mori Seiki Co Ltd | 工具装着確認装置 |
JP2008055522A (ja) * | 2006-08-29 | 2008-03-13 | Denso Corp | 工作機械及び工作機械の異物挟み込み判定方法 |
Non-Patent Citations (1)
Title |
---|
See also references of EP2258503A4 |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2019116573A1 (ja) * | 2017-12-15 | 2019-06-20 | マキノジェイ株式会社 | 工作機械の主軸装置 |
US20190308251A1 (en) * | 2018-04-04 | 2019-10-10 | Dmg Mori Co., Ltd. | Machine tool |
US10792735B2 (en) * | 2018-04-04 | 2020-10-06 | Dmg Mori Co., Ltd. | Machine tool |
Also Published As
Publication number | Publication date |
---|---|
US8827608B2 (en) | 2014-09-09 |
CN101980811B (zh) | 2012-10-31 |
US20110121521A1 (en) | 2011-05-26 |
JP2009241187A (ja) | 2009-10-22 |
EP2258503B1 (en) | 2013-03-20 |
KR101153029B1 (ko) | 2012-06-04 |
EP2258503A1 (en) | 2010-12-08 |
CN101980811A (zh) | 2011-02-23 |
TW200946276A (en) | 2009-11-16 |
JP4764450B2 (ja) | 2011-09-07 |
KR20100116228A (ko) | 2010-10-29 |
EP2258503A4 (en) | 2011-12-14 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4764450B2 (ja) | 工作機械の工具密着状態検出装置 | |
JP6599598B2 (ja) | プログラム制御式工作機械用の機械加工ユニット | |
EP2196274B1 (en) | Tool holder | |
JP5562410B2 (ja) | 工作機械の主軸装置 | |
CN105290873B (zh) | 将冷却介质或润滑介质输送至旋转工具的装置 | |
TWI441696B (zh) | Spindle device | |
US20060194513A1 (en) | Workpiece headstock | |
JP6340286B2 (ja) | 主軸装置および当該主軸装置を備えた工作機械 | |
JP2009208160A (ja) | ボーリング加工及びホーニング加工兼用可変径工具 | |
JP2007307651A (ja) | 主軸装置 | |
JP5009838B2 (ja) | ワークの支持装置および回転割出機 | |
JP2006326804A (ja) | 自動工具交換可能なエアマイクロ装置 | |
KR101538550B1 (ko) | 밀링 헤드 | |
JP4232017B2 (ja) | 工作機械のドローバー位置検出機構 | |
JP2023546335A (ja) | 中空シャフトのためのセルフロッククランプシステム | |
JP2010089174A (ja) | ホーニングヘッド | |
JP4637217B2 (ja) | ツールシャンクおよび工作機械 | |
JP2003251506A (ja) | ワーク保持装置 | |
JP2018043332A (ja) | 工作機械の主軸装置 | |
JP2003314707A (ja) | リップシールおよび回転軸のシール構造 | |
JP2019166619A (ja) | スピンドルユニット及びこれを備えた歯車加工装置 | |
JP2001219302A (ja) | 回転主軸における工作物把持作動用エアの供給構造 | |
JP2016198860A (ja) | Bta深穴加工機 | |
JP2009208159A (ja) | 工作機械の主軸装置 | |
JP2006150548A (ja) | 工作機械のチャック装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
WWE | Wipo information: entry into national phase |
Ref document number: 200980111177.6 Country of ref document: CN |
|
121 | Ep: the epo has been informed by wipo that ep was designated in this application |
Ref document number: 09726643 Country of ref document: EP Kind code of ref document: A1 |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2009726643 Country of ref document: EP |
|
WWE | Wipo information: entry into national phase |
Ref document number: 2021/MUMNP/2010 Country of ref document: IN |
|
ENP | Entry into the national phase |
Ref document number: 20107021709 Country of ref document: KR Kind code of ref document: A |
|
NENP | Non-entry into the national phase |
Ref country code: DE |
|
WWE | Wipo information: entry into national phase |
Ref document number: 12935533 Country of ref document: US |