WO2004069467A1 - 加工機におけるクロスレールのクランプ装置 - Google Patents
加工機におけるクロスレールのクランプ装置 Download PDFInfo
- Publication number
- WO2004069467A1 WO2004069467A1 PCT/JP2004/001131 JP2004001131W WO2004069467A1 WO 2004069467 A1 WO2004069467 A1 WO 2004069467A1 JP 2004001131 W JP2004001131 W JP 2004001131W WO 2004069467 A1 WO2004069467 A1 WO 2004069467A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- wedge
- cross rail
- rail
- lever
- guide rail
- Prior art date
Links
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
- B23Q1/00—Members which are comprised in the general build-up of a form of machine, particularly relatively large fixed members
- B23Q1/25—Movable or adjustable work or tool supports
- B23Q1/26—Movable or adjustable work or tool supports characterised by constructional features relating to the co-operation of relatively movable members; Means for preventing relative movement of such members
- B23Q1/28—Means for securing sliding members in any desired position
-
- 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
- B23Q16/00—Equipment for precise positioning of tool or work into particular locations not otherwise provided for
- B23Q16/001—Stops, cams, or holders therefor
Definitions
- the present invention relates to a cross rail clamping device in a processing machine.
- a processing machine that NC-controls a processing tool that is freely replaceable on a tool post generally has the following configuration.
- Guide rails are erected on the left and right sides of the column that can be moved back and forth on the bed, and horizontal girder (cross rails) are erected vertically along this guide rail, and left and right along this cross rail.
- a tool post is provided movably, and a predetermined processing tool is vertically attached to this tool post so that it can be exchanged.
- It is configured to control the movement of the processing tool by NC control.
- This cross rail has both ends cross-contacted with the left and right guide rails.
- a large number of locking pins (located bins) provided on the cross rail so as to be able to protrude and retract by a cylinder device are provided on the guide rail (column side).
- the engaging rail is selectively engaged with the engaging section, and the cross rail after the movement is horizontally supported at a predetermined height, and the cross rail is clamped and fixed to the guide rail by a clamp device provided on the cross rail.
- the clamping device is released and the pin is disengaged to control the movement.
- this crossrail has considerable weight and Since the loss rail is provided with a tool post equipped with a processing tool, the forward tilt load is quite large, and the cross rail is supported by pin engagement. Since a large load is applied to the clamping device for clamping the guide rail to the guide rail, a large clamping force is required.
- the guide rail must be pushed or pulled with a large driving force to press the guide rail against the cross rail, pull the cross rail, and clamp the cross rail to the guide rail.
- the drive unit must use a large-diameter hydraulic cylinder unit that can generate a large driving force. For this reason, some units are hydraulic two-stage cylinder units.
- the present invention focuses on the drive source of the clamp device of the cross rail, which has been a major impediment to the reduction of hydraulic pressure, and breaks down the conventional stereotype so that the clamp device can be realized by an air cylinder device. Even if the driving source is an air cylinder device that cannot generate a driving force that can directly oppose the tilting load of the rail, it can sufficiently withstand a large tilting load.
- the purpose is to provide a cross-rail clamp device for a revolutionary processing machine that can achieve oil-less operation without any trouble and save energy and resources.
- a cross rail 3 movably provided with a tool rest 2 on which a processing tool 1 is provided is movably provided along a guide rail 5 provided on a COMURA 4, and the cross rail 3 and the guide rail 5 are clamped to form a cross rail.
- 3 is a clamping device for fixing the wedge portion 7 to a predetermined position of the guide rail 5, and the wedge portion 7 is moved to the wedge engagement portion 8 by being moved by the urging released by driving the wedge driving device 6 or i.
- a wedge mechanism 9 configured to be pressed and engaged, and a wedge portion 7 of the wedge mechanism 9 is pressed by being engaged with the wedge engaging portion 8 to be pivoted about the fulcrum 10 as a fulcrum.
- the lever 11 is provided with an operating portion 20 of the lever 11 and presses the guide rail 5 on which the cross rail 3 is in contact, and presses and fixes the cross rail 3 to the guide rail 5. It is characterized by comprising Is engaged shall the clamping device of the cross rail in the processing machine for.
- the end contact surface 13 of the cross rail 3 is slidably disposed on the guide surface 14 of the guide rail 5, and the wedge engaging portion 8 is provided on the cross rail 3.
- the lever portion 11 is pressed by the wedge engaging portion 8 and pressed by the wedge portion 7 to rotate about the fulcrum portion 10 as a fulcrum, and the operating portion 20 of the lever portion 11 is provided by the guide.
- the cross rail 3 is pressed against the guide rail 5 by pressing the outer surface 15 opposite to the guide surface 14 of the rail 5 and sandwiching the outer surface 15 with the cross rail 3 and the lever 11.
- the end contact surface 13 of the cross rail 3 is slidably disposed on the guide surface 14 of the guide rail 5, and the wedge engaging portion 8 is provided on the cross rail 3.
- the lever portion 11 which is pressed by the wedge portion 7 which presses and engages the wedge engaging portion 8 and rotates about the fulcrum portion 10 is provided, and the action portion 20 of the lever portion 11 is provided by the guide.
- the cross rail 3 is pressed and fixed to the guide rail 5 by pressing the outer surface 15 opposite to the guide surface 14 of the rail 5 and sandwiching it between the mouth rail 3 and the lever portion 11.
- the present invention relates to a cross rail clamping device in a processing machine according to claim 2, wherein
- a rolling portion 18 is provided on the wedge portion 7 or the wedge engaging portion 8 so that the rolling portion 18 is brought into pressure contact and the wedge portion 7 and the wedge engaging portion 8 are pressed and engaged.
- the present invention relates to a cross rail clamping device in a processing machine according to any one of claims 1 to 4, wherein
- a cross rail clamping device in a processing machine characterized in that:
- the wedge engaging portion 8 is provided integrally with or fixed to the cross rail 3, and the wedge receiving portion 16 provided integrally with or fixed to the cross rail 3.
- the wedge portion 7 is pivotally provided at a fulcrum and comprises a force point portion 17 of the lever portion 11.
- the wedge portion 7 is pulled or pushed within the wedge insertion portion between the wedge receiving portion 16 and the force point portion 17.
- the lever 11 is rotated with respect to the cross rail 3 by being moved and pressed and engaged, so that the action portion 20 of the lever 11 is in contact with the cross rail 3.
- the wedge mechanism 9 and the lever mechanism 12 are configured so as to press the guide rail 5 to press and fix the cross rail 3 to the guide rail 5. 5.
- the present invention relates to a cross rail clamping device in the processing machine described in (1).
- the wedge engaging portion 8 is provided integrally with or fixed to the cross rail 3, and the wedge receiving portion 16 provided integrally with or fixed to the cross rail 3.
- a power point portion 17 of the lever portion 11 rotatably provided at a fulcrum, and the wedge portion 7 is pulled or pushed in the wedge insertion portion between the wedge receiving portion 16 and the power point portion 17.
- the lever 11 is rotated with respect to the cross rail 3 by being moved and pressed and engaged, so that the action portion 20 of the lever 11 is in contact with the cross rail 3.
- the cross rail according to claim 5, wherein the wedge mechanism (9) and the lever mechanism (12) are configured to press the guide rail (5) to press and fix the cross rail (3) to the guide rail (5). Pertaining to the clamping device of .
- the wedge engaging portion 8 is provided integrally with or fixed to the cross rail 3, and the wedge receiving portion 16 provided integrally with or fixed to the cross rail 3.
- a force point portion 17 of the lever portion 11 provided rotatably at a fulcrum, The wedge portion 7 is pulled or pushed to move and press-engage in the wedge insertion portion between the wedge receiving portion 16 and the force point portion 17, so that the lever portion 11 is engaged with the cross rail 3.
- the lever 20 is rotated so that the action portion 20 of the lever 11 presses the guide rail 5 with which the cross rail 3 is in contact, and presses and fixes the cross rail 3 to the guide rail 5.
- the cross rail clamping device in a processing machine according to claim 6, wherein a wedge mechanism 9 'and the lever mechanism 12 are configured.
- the present invention is configured as described above, even if the driving source is an air cylinder device which cannot generate a driving force capable of directly opposing the tilting load of the cross rail, it can sufficiently withstand a large tilting load. Hydraulic-less operation can be achieved without interfering with the cross rail movement control function by fixing and releasing the clamp. This is a cross-rail clamping device for a revolutionary processing machine that can save energy and resources.
- the pressing (clamp fixing) by the lever of the lever mechanism in other words, the clamp fixing position by the lever is crimped by the wedge mechanism (that is, the pressing engagement between the wedge and the wedge).
- the wedge mechanism that is, the pressing engagement between the wedge and the wedge.
- the wedge driving device of the wedge mechanism need not be a hydraulic cylinder device that can generate a large force that can directly oppose a large tilting load. It can also be configured with an air cylinder device, and it becomes a cross rail clamping device in an epoch-making processing machine that can realize no hydraulic pressure.
- a rolling portion (for example, a roller) is provided in the wedge portion or the wedge engaging portion, and the rolling portion is pressed against the taper surface to form a wedge. Since the portion and the wedge engaging portion are pressed and engaged, biting of the wedge is prevented, the wedge portion can be smoothly moved forward and backward, and the engagement and disengagement of the wedge can be smoothly performed.
- the epoch-making processing excelling in practicality that can easily realize the present invention in which the above-described functions and effects are reliably exhibited with a simple configuration. It becomes a clamping device for the cross rail in the machine.
- FIG. 1 is a schematic configuration explanatory front view of the present embodiment.
- FIG. 2 is a schematic rear view illustrating the configuration of the present embodiment.
- FIG. 3 is an explanatory plan sectional view of a main part at the time of unclamping in the present embodiment.
- FIG. 4 is an explanatory plan sectional view of a main part at the time of clamping according to the present embodiment.
- FIG. 5 is an explanatory side sectional view of a main part at the time of unclamping of the present embodiment.
- FIG. 6 is an explanatory side sectional view of a main part at the time of clamping according to the present embodiment.
- FIG. 7 is an explanatory rear view in which a part of a main part at the time of clamping of the present embodiment is cut away.
- FIG. 8 is an explanatory sectional view of a main part showing one side of an engagement / disengagement operation and operation control of the positioning device of the present embodiment.
- a positioning device for example, a pin engagement or an engagement between the rotating piece (rotating locking portion 22) and the engaging portion 23 as in the embodiment described later.
- the wedge portion 7 is moved by pushing or pulling the wedge portion 7 by driving the wedge drive device 6 or by urging released by the wedge drive device 6 while holding the cross rail 3 at a desired position. As a result, the wedge portion 7 is pressed and engaged with the wedge engaging portion 8.
- the pressing portion 17 of the lever portion 11 is pressed by this pressing engagement, and a rotating force with the fulcrum portion 10 of the lever portion 11 as a fulcrum is generated in the working portion 20 of the lever portion 11, and this action
- the guide rail 5 is pressed by the part 20 to draw the cross rail 3 against the guide rail 5 and press-contact, and the cross rail 3 is clamped and fixed to the guide rail 5.
- the engagement by the pin engagement or the rotation locking portion 22 is released and the clamp device is released to perform the movement. Dynamic control.
- the wedge driving device 6 is driven or biased to move the wedge portion 7 in the return direction to release the pressing engagement of the wedge portion 7 and release the pressing of the action portion 20 by the lever 11 to clamp the wedge portion 7. Release the fixation and control the movement of the cross rail 3 along the guide rail 5.
- the pressing (clamp fixing) by the lever portion 11 of the lever mechanism 12 in other words, the clamp fixing position by the lever portion 11 is determined by the wedge mechanism 9 (that is, the wedge part 7 and the wedge part 7).
- the wedge mechanism 9 that is, the wedge part 7 and the wedge part 7.
- the wedge driving device 6 of the wedge mechanism 9 can be configured not only as a hydraulic cylinder device capable of generating a large force capable of directly opposing a large tilting load but also as an air cylinder device, thereby achieving a reduction in hydraulic pressure. It becomes.
- the tilting load of the cross rail 3 does not depend on the cylinder thrust by the wedge self-opening mechanism, so that an air cylinder device with a small cylinder thrust is sufficient. This eliminates the need for hydraulic pressure, and the wedge itself prevents the crossrail 3 from tilting, thus excelling in safety.
- the wedge portion 7 or the wedge engaging portion 8 has a rolling portion 1 8 (for example, a roller), and the rolling portion 18 is pressed into contact with, for example, a tapered surface 19 formed in the pressing engagement portion, so that the wedge is prevented from sticking and the wedge portion is smoothly provided. 7 can be driven forward and backward, and the wedge engagement can be smoothly engaged and disengaged.
- a rolling portion 1 8 for example, a roller
- the wedge engagement is performed simply by the tapered surface contact.
- the static friction is much larger than the dynamic friction.
- the wedge driving device 6 is not a hydraulic cylinder device but an air cylinder device to realize a hydraulic-less operation.
- the air cylinder device controls the wedge portion 7 to advance and retreat. I have.
- guide rails 5 are erected on right and left sides of a column 4 provided on a bed 21 so as to be movable forward and backward.
- a horizontal girder (cross rail 3) is vertically erected along the guide rail 5 and a tool rest 2 is provided along the cross rail 3 so as to be movable left and right.
- the processing tool 1 is vertically installed, and each moving drive device is NC-controlled to control the movement of the processing tool 1.
- the cross rail 3 has both ends cross-contacted with the left and right guide rails 5, and is rotatably engaged with the cross rail 3 by the engagement / disengagement driving device 24 so as to be able to protrude and retract. 2 is selectively engaged with a plurality of engaging portions 23 provided on the guide rail 5 (column side), and the cross rail 3 after the movement is horizontally supported at a predetermined height by this positioning device, and the cross rail 3 is provided.
- the clamp device is released and the engagement by the engaging portions 22 is released. It is configured to control movement.
- a wedge mechanism 9 configured to move this clamp device by advancing and retreating a wedge drive device 6 employing an air cylinder device to press and engage the wedge portion ⁇ with the wedge engagement portion 8.
- the wedge portion 7 of the wedge mechanism 9 is pressed by the wedge engaging portion 8 to be pressed to provide a lever portion 11 that rotates about the fulcrum portion 10 as a fulcrum.
- a lever mechanism 12 for pressing the guide rail 5 against which the mouth slide 3 is in contact and pressing and fixing the cross rail 3 to the guide rail 5.
- the right and left end contact surfaces 13 of the cross rail 3 are slidably disposed on the guide surfaces 14 of the left and right guide rails 5.
- the wedge engaging portion 8 is provided on the wedge, and the wedge engaging portion 8 is pressed by the wedge engaging portion 8 so as to be pressed.
- the lever portion 11 is pivoted about the fulcrum portion 10 as a fulcrum, and the action portion 20 of the lever portion 11 presses the outer surface 15 of the guide rail 5 opposite to the guide surface 14.
- the cross rail 3 is brought closer to the guide rail 5 and the guide rail 5 is clamped between the cross rail 3 and the lever 11 so that the cross rail 3 is pressed and fixed to the guide rail 5. .
- the wedge engaging portion 8 is rotatable about a wedge receiving portion 16 provided integrally with the cross rail 3 and the fulcrum portion 10 provided on the cross rail 3 as a fulcrum.
- the wedge receiving portion 16 and the power point portion 17 are provided with a wedge insertion portion between the wedge receiving portion 16 and the power point portion 17, and the wedge portion 7 is inserted into the wedge insertion portion within the wedge insertion portion.
- the lever 11 is moved by the drive of the driving device 6 to move and press and engage, whereby the lever 11 rotates with respect to the cross rail 3 and the action portion 20 of the lever 11 is
- the wedge mechanism 9 and the leverage mechanism 12 are configured to press the guide rail 5 with which the cross rail 3 is in contact and press and fix the cross rail 3 to the guide rail 5.
- a rolling portion 18 (rotary roller) is provided at a portion of the wedge engaging portion 8 which presses and engages with the wedge portion 7, and the rolling portion 18 comes into pressure contact with the wedge portion 7.
- the wedge engaging portion 8 is configured to be pressed and engaged.
- the rolling portion 18 is provided on the wedge receiving portion 16 and the rolling portion 18 is provided on the power point portion 17 of the lever portion 11.
- one of the rolling portions 18 is a wedge receiving portion 16
- the other rolling portion 18 is a power point portion 17
- the wedge insertion portion formed between the rolling portions 18 is a wedge engaging portion.
- the wedge part 7 is inserted into the wedge engaging part 8
- the guide rail 5 is pressed by the action part 20 of the lever part 11 to perform wedge locking while the cross rail 3 is clamped to the guide rail 5.
- a wedge taper surface 19 that is inclined with respect to the direction in which the wedge portion 7 moves forward and backward is formed in a portion of the wedge portion 7 or the wedge engaging portion 8 where the rolling portion 18 presses and engages.
- a tapered surface 19 is formed on the outer surface 15 on the side of the point 17 (rolling portion 18) of the lever portion 11 on one side of the wedge portion 7, The wedge is locked by pulling the rust 7.
- the positioning device for positioning and supporting the crossrail 3 is not engaged by a direct-acting locating bin.
- the configuration is as follows.
- the protruding portion 22 A is locked by the engagement portion 23 by the drive of the engagement / disengagement drive device 24 or the bias released by the drive, and the rotation lock portion 22 is locked by the lock.
- the projection 22 a is pivotally disengaged from the engaging portion 23 when the rotation locking portion 22 pivots or returns, and the movement of the cross rail 3 is stopped. It is configured to allow.
- the rotation locking portion 22 is rotated by driving the engagement / disengagement driving device 24, a large number of the engagement portions 23 are provided.
- the rotation locking portion 22 in the retracted state is brought into a protruding state by this rotation, and the protrusion 22 A of the rotation locking portion 22 is selectively engaged with one of the many engagement portions 23.
- the cross rail 3 is supported and held at a desired position by this engagement.
- the rotation locking portion 22 is returned and rotated to release the engagement, and the clamp device is released to control the movement.
- the rotation locking portion 22 is returned and rotated by the driving of the engagement / disengagement driving device 24 so as to be retracted with respect to the engagement portion 23, the clamp is released, and the cross rail 3 is guided. Movement control is performed along Drail 5. Therefore, in the present invention, the rod of the engagement / disengagement drive device 24 does not directly receive the load of the cross rail 3, and the rotation engagement portion 22 is rotated by the engagement / disengagement drive device 24. Since the projecting portion 22A of the rotation locking portion 22 is supported by the engaging portion 23 serving as a support receiving portion to support the load of the cross rail 3, the rod diameter of the engagement / disengagement drive device 24 is required. Since it is not necessary to increase the size (because the diameter can be reduced), the positioning device can be engaged and disengaged even with an air cylinder device having a small driving force, and the bearing strength can be secured.
- the engagement / disengagement drive device 24 of the positioning device can be configured not only as a hydraulic cylinder device capable of generating a large force for driving a large-diameter rod but also as an aerial cylinder device, thereby reducing the need for hydraulic pressure. That is, instead of engaging and disengaging with a direct-acting type locating pin, a structure in which the rotation locking portion 22 engages with the engagement portion 23 and is supported by the rotation protrusion of the rotation locking portion 22 is used. Since the device 24 rotates the engaging portion 23 and does not directly receive the load of the cross rail 3, the load may have a small diameter, and therefore an air cylinder device having a small cylinder thrust. Is sufficient, and no hydraulic pressure is required.
- the rotation locking portion 22 abuts and the rotation locking portion 22 rotates excessively.
- the stopper 22 is located at a position where the projection 22A of the rotation locking portion 2'2 can be locked to the engagement portion 23 when the rotation locking portion 22 abuts. 27 is provided, and the protruding portion 22 A is rotatably engaged with and disengaged from the engaging portion 23 by returning and rotating the rotation locking portion 22.
- the rotation locking portion 22 when the rotation locking portion 22 is brought into contact with the stopper portion 27, the rotation locking portion 22 is rotatably projected and engaged with the engagement portion 23.
- the rotation locking portion 22 is supported at two points, the engagement portion 23 and the stop portion 27, so that the positioning accuracy is further improved and the bearing strength is further improved.
- the load is not applied to the engagement / disengagement drive 24 that further rotates the rotation locking portion 22, and the thrust of the engagement / disengagement drive 24 does not depend on the weight of the cross rail 3.
- the engagement / disengagement driving device 24 having a small driving force can be provided, and the need for a hydraulic pressure can be easily achieved. Further, as shown in FIG.
- a timing detecting device for instructing the rotation of the rotation locking portion 22 to be disengaged when the cross rail 3 is moved.
- the engagement detection device activates the engagement / disengagement drive device 24 to automatically engage / disengage the rotation locking portion 22 from the engagement portion 23, and the engagement of the rotation locking portion 22 is released.
- the automatic engagement that turns and engages the rotation locking part 22 automatically to the position where the rotation locking part 22 can be locked to the engagement part 23 after a predetermined time by the setting
- An integrated control device is provided.
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Machine Tool Units (AREA)
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003-29906 | 2003-02-06 | ||
JP2003029906A JP3927505B2 (ja) | 2003-02-06 | 2003-02-06 | 加工機におけるクロスレールのクランプ装置 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2004069467A1 true WO2004069467A1 (ja) | 2004-08-19 |
Family
ID=32844251
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/JP2004/001131 WO2004069467A1 (ja) | 2003-02-06 | 2004-02-04 | 加工機におけるクロスレールのクランプ装置 |
Country Status (2)
Country | Link |
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JP (1) | JP3927505B2 (ja) |
WO (1) | WO2004069467A1 (ja) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101463999B1 (ko) * | 2008-12-03 | 2014-11-21 | 두산인프라코어 주식회사 | 이송축의 클램핑 장치 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49125980A (ja) * | 1973-04-04 | 1974-12-03 | ||
JPS5917557Y2 (ja) * | 1978-07-13 | 1984-05-22 | ブラザー工業株式会社 | クランプ装置 |
JPH04141337A (ja) * | 1990-10-01 | 1992-05-14 | Okuma Mach Works Ltd | マシニングセンタの横桁クランプ方法 |
JPH07164269A (ja) * | 1993-12-09 | 1995-06-27 | O M Ltd | 加工機におけるクロスレールのクランプ装置 |
-
2003
- 2003-02-06 JP JP2003029906A patent/JP3927505B2/ja not_active Expired - Fee Related
-
2004
- 2004-02-04 WO PCT/JP2004/001131 patent/WO2004069467A1/ja active Application Filing
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS49125980A (ja) * | 1973-04-04 | 1974-12-03 | ||
JPS5917557Y2 (ja) * | 1978-07-13 | 1984-05-22 | ブラザー工業株式会社 | クランプ装置 |
JPH04141337A (ja) * | 1990-10-01 | 1992-05-14 | Okuma Mach Works Ltd | マシニングセンタの横桁クランプ方法 |
JPH07164269A (ja) * | 1993-12-09 | 1995-06-27 | O M Ltd | 加工機におけるクロスレールのクランプ装置 |
Also Published As
Publication number | Publication date |
---|---|
JP2004261879A (ja) | 2004-09-24 |
JP3927505B2 (ja) | 2007-06-13 |
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