CN101939134B - Machine tool - Google Patents
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- CN101939134B CN101939134B CN200980104387.2A CN200980104387A CN101939134B CN 101939134 B CN101939134 B CN 101939134B CN 200980104387 A CN200980104387 A CN 200980104387A CN 101939134 B CN101939134 B CN 101939134B
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- Prior art keywords
- post
- lathe
- distortion
- saddle
- range sensor
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- 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
- B23Q15/00—Automatic control or regulation of feed movement, cutting velocity or position of tool or work
- B23Q15/007—Automatic control or regulation of feed movement, cutting velocity or position of tool or work while the tool acts upon the workpiece
- B23Q15/18—Compensation of tool-deflection due to temperature or force
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- 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
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/001—Arrangements compensating weight or flexion on parts of the machine
- B23Q11/0028—Arrangements compensating weight or flexion on parts of the machine by actively reacting to a change of the configuration of the machine
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- 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
- B23Q17/22—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring existing or desired position of tool or work
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/18—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form
- G05B19/404—Numerical control [NC], i.e. automatically operating machines, in particular machine tools, e.g. in a manufacturing environment, so as to execute positioning, movement or co-ordinated operations by means of programme data in numerical form characterised by control arrangements for compensation, e.g. for backlash, overshoot, tool offset, tool wear, temperature, machine construction errors, load, inertia
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/45—Nc applications
- G05B2219/45148—Boring
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/30—Nc systems
- G05B2219/49—Nc machine tool, till multiple
- G05B2219/49186—Deflection, bending of tool
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Human Computer Interaction (AREA)
- Manufacturing & Machinery (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Automation & Control Theory (AREA)
- Machine Tool Sensing Apparatuses (AREA)
- Automatic Control Of Machine Tools (AREA)
- Machine Tool Units (AREA)
- Numerical Control (AREA)
- Turning (AREA)
Abstract
A machine tool in which machining precision can be prevented from lowering even in a case where a column deforms due to movement of a main spindle to each axial direction. A machine tool (1) for machining a work (W) by relatively moving a tool (T) and the work (W) comprises a saddle (16) for rotatably supporting a main spindle (19) to which the tool (T) is removably attached, a column (14) movably provided and movably supporting the saddle (16), and a column deformation detector (30) for detecting deformation of the column (14) caused by movement of at least one of the saddle (16) and the column (14), wherein movement of at least one of the tool (T) and the work (W) is corrected based on the detection result of the column deformation detector (30).
Description
Technical field
The present invention relates to a kind of lathe, this lathe moves relative to each other processing object by making object and cutter.
Background technology
Lathe in recent years is facing to the ever-increasing demand of high manufacturing accuracy more.Precision in the processing of being carried out by lathe depends on the geometric accuracy of lathe itself significantly, and for example: the smoothness that member moves, described member be the workbench of installation workpiece and the saddle of supports main shaft on it for example; The linearity of the movement of member above-mentioned; The depth of parallelism and perpendicularity with respect to the motion of spindle centerline.In other words, machining accuracy by execution add man-hour cutter and workpiece toward each other the precision of position determine.
In addition, in order to obtain high accuracy when the processing work, lathe maintenance high dimensional accuracy itself is necessary.For reaching for example positional precision of workbench and saddle of structure that the important factor of purpose above-mentioned not only comprises this formation machine part, also comprise support member above-mentioned and be used as above mention the structure of reference of the movement of member, particularly, the positional precision of base and post.For this reason, these structures that form machine parts are designed to be enough rigidity and not because of distortion such as pressure, and are designed to not be subjected to vibration effect especially.
Yet lathe will be subjected to the influence by the heat of lathe generation itself inevitably, or the influence of its environment temperature.Such influence causes forming the thermal expansion of the structure of machine part sometimes, and finally causes the distortion of lathe.More specifically, when lathe moved, various motors, cutter, workpiece and analog produced heat, and the heat that so produces is passed to structure.So the heat of transmitting has caused the thermal deformation of lathe.In addition, wherein installing the temperature of atmosphere of lathe and the distribution of this temperature is inhomogeneous from a point to the another one point.Therefore, temperature is with the part of structure, i.e. front side, rear side, right-hand side, left-hand side, top or bottom and change.Such variations in temperature within the single structure body has caused thermal deformation, for example tilts and twists.Such structure thermal deformation may make main shaft tilt to a side and cause not satisfied accuracy class in the processing work.
For this reason, adopted various measures to be used for the precision of processing work traditionally, heat and lathe temperature environment that this precision is produced by lathe itself influence.For example, in patent documentation 1 and 2, disclose and had the lathe that problem above-mentioned is offset in this measure.
Patent documentation 1: the flat 4-82649 of Japanese Patent Application Publication
Patent documentation 2: the flat 6-39682 of Japanese Patent Application Publication
Summary of the invention
The problem that the present invention solves
In lathe, a plurality of structures have allowed to support the three-dimensional motion along axis of the main shaft of cutter.The motion of main shaft causes the distortion of structure sometimes.
For example, in the lathe of for example horizontal boring machine, the saddle of supports main shaft is supported on the sidewall of post movably, and this post also can move.Therefore, in the large scale lathe with high post and heavy saddle, the distortion of post (inclination) moves up along with saddle and becomes bigger especially.This bigger distortion makes and is difficult to the linearity that keeps saddle to move up and down.In addition, when post moves, the linearity of the base of the moving influence supporting movement of post.Therefore, it is mobile that post is accompanied by angular displacement (pitching rolls yaw), caused the distortion (inclination) of post.Therefore, about the front position of main shaft error may take place, thus not satisfied accuracy class when causing processing work.
Yet existing machine tool is offset the above-described distortion that is caused along moving of axial direction by main shaft without any measure, so that the processing of workpiece may only be finished under not satisfied accuracy class.In order to obtain more high-grade machining accuracy, believe the thermal deformation of the structure that should consider that not only the heat that produced by lathe itself and lathe temperature environment cause, and should consider the distortion by main shaft kinetic structure vertically.
The target of the present invention that is used for the above-described problem of solution is to provide a kind of lathe, even when post is out of shape owing to main shaft motion in axial direction, this lathe can prevent that also machining accuracy is lowered.
The means of dealing with problems
The lathe that is used for solving the above-mentioned problem according to first invention is a kind of like this lathe, and this lathe makes cutter and wants processed object to move relative to each other in order to process described object, and described lathe is characterised in that and comprises:
Saddle, described saddle is rotatably supporting main shaft, and this main shaft has the cutter that is removably coupled to this main shaft;
Post, described post arrange and support movably described saddle movably;
Post distortion sniffer, described post distortion sniffer are used for surveying by at least one the distortion of kinetic described post of described saddle and described post; And
Means for correcting, described means for correcting are used for proofreading and correct based on the result of detection of described post distortion sniffer at least one motion of described cutter and described object.
The lathe that is used for description problem above the solution according to second invention is characterised in that described post distortion sniffer comprises:
What vertically hang in described post wants measured part; And
Be used for to measure the measurement mechanism of the distance between described post and the measured part.
The lathe that is used for solving the above-mentioned problem according to the 3rd invention is characterised in that described post distortion sniffer comprises the buffer unit for the vibration of this part of buffering.
The lathe that is used for solving the above-mentioned problem according to the 4th invention is characterised in that described post distortion sniffer comprises:
Container, described container is attached to described post, and described containers store viscous fluid;
Suspension element, described suspension element vertically hangs in described post by means of line;
First rod component, the upper end of described first rod component utilize globular lining to be supported by described suspension element, and described first rod component comprises and wants measured part;
Second rod component, the upper end of described second rod component utilize globular lining to be supported by described suspension element, and the lower end of described second rod component is immersed in the described viscous fluid that is stored in the described container; And
Range sensor, described range sensor is attached to described post, and described range sensor is measured the distance from this range sensor to described part.
The lathe that is used for solving the above-mentioned problem according to the 5th invention is characterised in that described post distortion sniffer is arranged in the described post.
In a word, the invention provides a kind of lathe, described lathe makes cutter and wants processed object to move relative to each other in order to process described object, and described lathe is characterised in that and comprises:
Saddle, described saddle is supports main shaft rotatably, and described main shaft has the described cutter that is removably coupled to described main shaft;
Post, described post arrange and support movably described saddle movably;
Post distortion sniffer, described post distortion sniffer are used for surveying the distortion by the kinetic described post of at least one of described saddle and described post; And
Means for correcting, described means for correcting are used for proofreading and correct based on the result of detection of described post distortion sniffer at least one motion of described cutter and described object;
Wherein, described post distortion sniffer comprises:
Container, described container is attached to described post, and described containers store viscous fluid;
Suspension element, described suspension element vertically hangs in described post by means of line;
First rod component, the upper end of described first rod component utilize globular lining to be supported by described suspension element, and described first rod component comprises and wants measured part;
Second rod component, the upper end of described second rod component utilize globular lining to be supported by described suspension element, and the lower end of described second rod component is immersed in the described viscous fluid that is stored in the described container; And
Range sensor, described range sensor is attached to described post, and described range sensor is measured the distance from this range sensor to described part.
The invention effect
Therefore, according to lathe of the present invention, even when post is out of shape owing to main shaft motion in axial direction, also can be by carrying out cutter according to the post deflection that detects and wanting the correction of processed object motion one of at least to prevent the reduction of machining accuracy.
Description of drawings
Fig. 1 is the lathe perspective illustration according to the embodiment of the invention.
Fig. 2 is the overall arrangement figure of diagram post distortion detecting devices.
Fig. 3 is the viewgraph of cross-section of post.
Fig. 4 is that the diagram post is how along the schematic diagram of X-direction distortion.
Fig. 5 is that the diagram post is how along the schematic diagram of Z-direction distortion.
The specific embodiment
Lathe according to the embodiment of the invention will be described in detail with reference to the attached drawings below.Fig. 1 is the perspective illustration according to the lathe of the embodiment of the invention.Fig. 2 is the overall arrangement figure of diagram post distortion detecting devices.Fig. 3 is the viewgraph of cross-section of post.Fig. 4 is that the diagram post is how along the schematic diagram of X-direction distortion.Fig. 5 is that the diagram post is how along the schematic diagram of Z-direction distortion.In each figure, represented three direction of principal axis of quadrature by X, Y and Z (W) indicated direction, described three direction of principal axis are orthogonal, and particularly, represented the fore-and-aft direction of lathe, the above-below direction of lathe and the width of lathe respectively.In addition, the embodiment that will describe below is according to the application of lathe of the present invention to the large scale horizontal boring machine.
As shown in Figure 1, the lathe 1 as the large scale horizontal boring machine comprises the base 11 that is fixed in ground.The a pair of left and right rail 12a and the 12b that extend along X-direction form on the item surface of base 11.Base for post portion 13 is supported sliding along X-direction by guide rail 12a and 12b.Hollow post 14 stands on the top of base for post portion 13.Therefore, base for post portion 13 (post 14) can be moved along X-direction by the drive post drive unit, and described post drive unit for example comprises the member of not shown post CD-ROM drive motor and not shown post feeding thread mechanism.
The a pair of left and right rail 15a and the 15b that extend along Y direction form in the front side surface (subsequently with the sidewall 14b that describes) of post 14.Saddle 16 is supported sliding along Y direction by guide rail 15a and 15b.Therefore, saddle 16 can be moved along Y direction by driving the saddle drive unit, and described saddle drive unit comprises the member of the not shown saddle CD-ROM drive motor that goes out for example and the not shown saddle feeding thread mechanism that goes out.
The table base 21 that is fixed in a ground part is arranged on a side of base 11.The a pair of front and back guide rail 22a and the 22b that extend along Z-direction form in the top surface of table base 21.Workbench base portion 23 is supported sliding along Z-direction by guide rail 22a and 22b.In addition, in the top of workbench base portion 23, rotary table 24 is supported rotating.Workpiece (wanting processed object) W is detachably mounted on the top surface of rotary table 24.Therefore, workbench base portion 23 (rotary table 24) can move along Z-direction by driving Working table driving device, and described Working table driving device comprises the member of the not shown table-drive motor that goes out for example and the not shown table feed thread mechanism that goes out.In addition, rotary table 24 can rotate about Y-axis by driving the workbench whirligig, and described workbench whirligig comprises for example member of the not shown workbench rotation motor that goes out.
NC equipment (means for correcting) 50 is arranged in the lathe 1, and lathe 1 is controlled as a whole.NC equipment 50 is connected to each drive unit above-mentioned and each whirligig above-mentioned etc.So the NC equipment that connects change among cutter T and the workpiece W each move and so that how soon speed moves along which direction.Among cutter T and the workpiece W each of also adjusting equipment 50 move what and rotation what.Therefore, NC equipment 50 is being carried out the positioning control on cutter T and the workpiece W, is also carrying out the calibration control on the workpiece W.Therefore, cutter T and workpiece W are moved relative to each other, to enable processing predetermined shape in workpiece W.
Shown in Fig. 2 and 3, post 14 comprises upper wall 14a and sidewall 14b, 14c, 14d and 14e, and forms hollow structure.In the post 14 that forms thus, post distortion detecting devices (post distortion sniffer) 30 is supported, in order to vertically hang from the basal surface of upper wall 14a.
Post distortion detecting devices 30 comprises two flexible wires 31.The both ends of every line 31 are attached to the basal surface of upper wall 14a.Suspension element 33 passes member 32 by line 31 utilizations and hangs.Hanging stick (first rod-shaped member and second rod-shaped member) 35 and 36 utilizes globular lining 34 to be attached to suspension element 33 respectively.The material of every line 31 and diameter can be selected arbitrarily.Yet line 31 can preferably have enough low rigidity, even so that also always poise vertically downward when post 14 is out of shape and tilts to a side.
Measured member 37 and 38 is separately positioned in hanging stick 35 middle part in axial direction and the lower end of hanging stick 35.Want measured face (wanting measured part) 37a and 37b forms and want measured face (will measured part) 38a and 38b to form in measured member 38 in measured member 37.The plane of wanting measured face 37a and among the 38a each to want measured face to form to be orthogonal to X-direction and want measured face 37b and among the 38b each to want measured face form the plane that is orthogonal to Z-direction.In addition, pouring weight 39 is arranged on the lower end of hanging stick 36.
A pair of range sensor (measurement mechanism) 40a up and down and 40b are arranged on the inner surface of sidewall 14b, and respectively with respect to wanting measured face 37a and 38a.In addition, a pair of range sensor (measurement mechanism) 41a up and down and 41b are arranged on the inner surface of sidewall 14e, and respectively with respect to wanting measured face 37b and 38b.Range sensor 40a, 40b, 41a and 41b are the sensors of non-contact type.Range sensor 40a always measure from it self to the distance of wanting measured face 37a, and range sensor 40b always measure from it self to the distance of wanting measured face 38a.In addition, range sensor 41a always measure from it self to the distance of wanting measured face 37b, and range sensor 41b always measure from it self to the distance of wanting measured face 38b.And NC equipment 50 is connected to range sensor 40a, 40b, 41a and 41b.The distance that range sensor 40a, 40b, 41a and 41b measure (result of detection) is imported into NC equipment 50.
Food tray (container) 42 is supported on the inner surface of sidewall 14d by the not shown supporting member that goes out.Oil 43 as high-viscosity fluid is stored in the food tray 42, and hanging stick 36 is immersed in the oil 43 that is stored in the food tray 42.Notice that food tray 42 and oil 43 have formed buffer unit jointly.
Therefore, NC equipment 50 to the difference distance of wanting measured face 38a calculates the X-direction deflection (X-direction tilt quantity) of post 14 from range sensor 40a to the distance of wanting measured face 37a with by what range sensor 40b measured from range sensor 40b from what measured by range sensor 40a.In addition, NC equipment 50 to the difference distance of wanting measured face 38b calculates the Z-direction deflection (Z-direction tilt quantity) of post 14 from range sensor 41a to the distance of wanting measured face 37b with by what range sensor 41b measured from range sensor 41b from what measured by range sensor 41a.Then, NC equipment 50 is carried out positioning control according to X-direction deflection and the Z-direction deflection of the post 14 that calculates thus at cutter T and workpiece W.Carry out the driving that this positioning control is used for proofreading and correct each drive unit, thereby in workpiece W, process reservation shape.
In addition, even when by for example disturbing the former of vibration thereby make hanging stick 35 and 36 and suspension element 33 when vibrating together, the vibration of hanging stick 36 is by promptly by being stored in oil 43 bufferings in the food tray 42.Therefore, the vibration of hanging stick 35 is also cushioned immediately.
When workpiece W is added man-hour by lathe 1, workpiece W at first is installed on the top surface of rotary table 24, and the stylobate portion 23 that proceeds with one's work moves so that workpiece W is moved to Working position along Z-direction.Then, as cutter T during by main shaft 19 rotation, the following motion of member is optionally carried out as required: post 14 moves along X-direction; Saddle 16 moves along Y direction; Ram 18 moves along Z-direction; And main shaft 19 moves along the W direction of principal axis.In addition, rotary table 24 is rotated to carry out the calibration rotation on the workpiece W on demand.In this way, workpiece W is processed by cutter T.
As above describe, when workpiece W was processed, cutter T must be moved by at least one direction in X-axis, Y-axis, Z axle and W direction of principal axis.Especially when cutter T was moved along X-direction and/or Y direction, other situations of the deformation ratio of post 14 more likely took place.When post 14 distortion, the error of main shaft 19 front positions takes place probably, causes lower machining accuracy.
Particularly, has the structure that the saddle 16 of supports main shaft 19 is rotatably supported by the sidewall 14b of post 14 by the lathe 1 of horizontal boring machine representative.Under the situation of this structure, saddle 16 makes post 14 tilt along X-direction along moving of Y direction, makes the tie point of base for post portion 13 and post 14 as the reference position, as shown in Figure 4.When lathe 1 was the large scale lathe especially, it is heavier that post 14 becomes higher and saddle 16 becomes.Therefore, along with saddle 16 moves up, the distortion of post 14 becomes increasing.Thereby the linearity that saddle 16 moves up and down can not be held.
In addition, when post 14 (base for post portion 13) is moved along X-direction on base 11, the motion effects base 11 that post 14 is such and the linearity of guide rail 12a and 12b.Therefore, it is mobile that post 14 is accompanied by angular displacement (pitching rolls yaw).Therefore, post 14 tilts along Z-direction, makes tie point between base for post portion 13 and the post 14 with for referencial use, as shown in Figure 5.
And, as shown in Figure 3, because track 15a and 15b form in sidewall 14b, so the sidewall 14b of post 14 and 14d are different mutually aspect the wall thickness.The sidewall 14b of heavy wall and the sidewall 14d of thin-walled are different mutually aspect thermal capacitance.Therefore, when at these members, when for example generation is hot among drive unit, whirligig, cutter T and the workpiece W, and/or when the temperature of the atmosphere that lathe 1 wherein is installed changed, the sidewall 14d of little thermal capacitance compared easier thermal deformation with the sidewall 14b of big thermal capacitance.Therefore, post 14 tilts along X-direction.
Particularly, thus suppose that saddle 16 is moved along Y direction and post 14 along the situation of X-direction distortion, and the heat that itself is produced by lathe 1 and the variations in temperature that the atmosphere of lathe 1 wherein is installed cause that post 14 is along the situation of the thermal deformation of X-direction.In these situations, recorded by range finder 40a to the distance of wanting measured face 37a from range sensor 40a, and recorded by range finder 40b to the distance of wanting measured face 38a from range sensor 40b.Then, the measuring distance that obtains thus is transfused to NC equipment 50, and the difference between the measuring distance of input is thus calculated by NC equipment 50.Then, poor according between the measuring distance that calculates, NC equipment 50 calculates post 14 along the deflection of X-direction.According to this deflection that calculates thus, NC equipment 50 proofread and correct the driving of each drive unit and carry out cutter T thus and workpiece W on positioning control.
In addition, suppose post 14 along X-direction move and post 14 thus along the situation of Z-direction distortion.In this case, at first recorded by range sensor 41a to the distance of wanting measured face 37b from range sensor 41a, and recorded by range sensor 41b to the distance of wanting measured face 38b from range sensor 41b.Then, the measuring distance that obtains thus is transfused in the NC equipment 50, and the difference between the measuring distance of input is thus calculated by NC equipment 50.Then, poor according between the measuring distance that calculates, NC equipment 50 calculates post 14 along the deflection of Z-direction.According to this deflection that calculates thus, NC equipment 50 has been proofreaied and correct the driving of each drive unit and has been carried out positioning control at cutter T and workpiece W thus.
As so far describing, according to lathe of the present invention, when workpiece W is added man-hour by cutter T, post distortion detecting devices 30 is surveyed by the distortion along X-direction and Z-direction of the kinetic post 14 of post 14 and saddle 16.Then, according to result of detection, the driving of each drive unit of NC equipment calibration and carry out positioning control at cutter T and workpiece W thus.Therefore, can prevent the reduction of machining accuracy.
In addition, in post distortion detecting devices 30, hanging stick 35 and 36 the upper end member 33 that is draped supports by globular lining 34 respectively, and suspension element 33 usefulness lines 31 hang.In addition, the lower end of hanging stick 36 is immersed in the oil 43 that is stored in the food tray 42.Therefore, even when take place disturbing vibration in the post 14, hanging stick 35 and 36 vibration also can be cushioned at short notice, and hanging stick 35 and 36 can be maintained at static state along vertical direction thus.Therefore, range sensor 40a, 40b, 41a and 41b can directly, rapidly and correctly measure them to the distance of corresponding face 37a, 37b, 38a and the 38b that will be measured of measured member 37 and 38.And, in post 14, provide post distortion detecting devices 30 to cause the space to be saved.Therefore, make the size of lathe 1 unnecessary be greatly unnecessary.
Industrial usability
The present invention is applicable to a kind of solar heat protection distressed structure, and described solar heat protection distressed structure is configured to prevent that machining accuracy from being reduced by the thermal deformation of post, and described post is fixed on lathe for example in the machining center.
Claims (2)
1. lathe, described lathe make cutter and want processed object to move relative to each other in order to process described object, and described lathe comprises:
Saddle, described saddle is supports main shaft rotatably;
Post, described post arrange and support movably described saddle movably;
Post distortion sniffer, described post distortion sniffer are used for surveying the distortion by the kinetic described post of at least one of described saddle and described post; And
Means for correcting,
It is characterized in that:
Described main shaft has the described cutter that is removably coupled to described main shaft,
Described means for correcting is used for proofreading and correct based on the result of detection of described post distortion sniffer at least one motion of described cutter and described object;
Wherein, described post distortion sniffer comprises:
Container, described container is attached to described post, and described containers store viscous fluid;
Suspension element, described suspension element vertically hangs in described post by means of line;
First rod component, the upper end of described first rod component utilize globular lining to be supported by described suspension element, and described first rod component comprises and wants measured part;
Second rod component, the upper end of described second rod component utilize globular lining to be supported by described suspension element, and the lower end of described second rod component is immersed in the described viscous fluid that is stored in the described container; And
Range sensor, described range sensor is attached to described post, and described range sensor is measured the distance from this range sensor to described measured part.
2. lathe according to claim 1 is characterized in that, described post distortion sniffer is arranged in the described post.
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2008027157A JP5001870B2 (en) | 2008-02-07 | 2008-02-07 | Machine Tools |
| JP2008-027157 | 2008-02-07 | ||
| PCT/JP2009/050708 WO2009098931A1 (en) | 2008-02-07 | 2009-01-20 | Machine tool |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101939134A CN101939134A (en) | 2011-01-05 |
| CN101939134B true CN101939134B (en) | 2013-07-10 |
Family
ID=40952009
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200980104387.2A Expired - Fee Related CN101939134B (en) | 2008-02-07 | 2009-01-20 | Machine tool |
Country Status (5)
| Country | Link |
|---|---|
| JP (1) | JP5001870B2 (en) |
| KR (1) | KR101198058B1 (en) |
| CN (1) | CN101939134B (en) |
| TW (1) | TWI381902B (en) |
| WO (1) | WO2009098931A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107206562A (en) * | 2015-03-17 | 2017-09-26 | 东芝机械株式会社 | Lathe |
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| KR101156905B1 (en) * | 2009-09-30 | 2012-06-21 | 웅진코웨이주식회사 | Ice-maker and controlling method thereof |
| IT1397703B1 (en) * | 2009-12-22 | 2013-01-24 | Camozzi Machine Tools S P A Ora Innse Berardi S P A | VERTICAL COLUMN TOOL MACHINE. |
| JP2011140098A (en) * | 2010-01-08 | 2011-07-21 | Mitsubishi Heavy Ind Ltd | Machine displacement correction system for machine tool |
| JP5418272B2 (en) * | 2010-02-15 | 2014-02-19 | 株式会社ジェイテクト | Thermal displacement correction method and thermal displacement correction apparatus for machine tool |
| JP5632181B2 (en) * | 2010-03-31 | 2014-11-26 | 新日本工機株式会社 | Numerical control device and machine tool |
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Also Published As
| Publication number | Publication date |
|---|---|
| KR101198058B1 (en) | 2012-11-07 |
| JP5001870B2 (en) | 2012-08-15 |
| TW200938329A (en) | 2009-09-16 |
| KR20100102198A (en) | 2010-09-20 |
| WO2009098931A1 (en) | 2009-08-13 |
| JP2009184077A (en) | 2009-08-20 |
| CN101939134A (en) | 2011-01-05 |
| TWI381902B (en) | 2013-01-11 |
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