CN106735347A - Machine tool chief axis axis position acquisition device and acquisition methods - Google Patents
Machine tool chief axis axis position acquisition device and acquisition methods Download PDFInfo
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- CN106735347A CN106735347A CN201510811019.9A CN201510811019A CN106735347A CN 106735347 A CN106735347 A CN 106735347A CN 201510811019 A CN201510811019 A CN 201510811019A CN 106735347 A CN106735347 A CN 106735347A
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23B—TURNING; BORING
- B23B25/00—Accessories or auxiliary equipment for turning-machines
- B23B25/06—Measuring, gauging, or adjusting equipment on turning-machines for setting-on, feeding, controlling, or monitoring the cutting tools or work
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Abstract
The present invention discloses a kind of machine tool chief axis axis position acquisition device and acquisition methods.Acquisition device includes Hexapod mobile platforms, assisted calibration part, laser sensor and controller.Hexapod mobile platforms include upper and lower platform and 6 expansion links.Lower platform is installed on knife rest, and in upper mounting plate middle position, the Hexapod mobile platforms have 6 frees degree to Cutting tool installation manner.Assisted calibration part for installation into machine tool chief axis end, including one perpendicular to machine tool chief axis oblate cylindricality end plate.Laser sensor is installed on upper mounting plate；Controller can control the upper mounting plate of Hexapod mobile platforms along one or more free degree activities in 6 frees degree, and controlling laser sensor to be scanned to oblate cylindricality end plate in upper mounting plate active procedure, controller obtains linear equation of the machine tool chief axis axis line position in Hexapod coordinate systems according to scan data.The present invention greatly improved operating efficiency without carrying out quick and precisely obtaining machine tool chief axis axis position equation by sacrificial is cut to workpiece.
Description
Technical field
The present invention relates to a kind of machine tool chief axis axis position acquisition device and acquisition methods.
Background technology
Before operation lathe carries out machining, it usually needs determine lathe spindle axis line position, i.e. work
The position of part rotation axis.At present it is known that many methods for obtaining lathe spindle axis by hand, such as,
There is patent document to describe by exploratory cutting, and it is radially right using formula measurement probe measurement workpiece is touched
The method for putting position a little to estimate lathe spindle axis.But it is time-consuming more long using this kind of method, sternly
Ghost image rings processing efficiency, and needs to carry out sacrificial cutting to workpiece to be processed, it is difficult to meet modernization
The requirement of industry manufacture.
Above- mentioned information is only used for strengthening the understanding to background of the invention disclosed in the background section,
Therefore it can include not constituting the information to prior art known to persons of ordinary skill in the art.
The content of the invention
A primary object of the present invention is at least one defect for overcoming above-mentioned prior art, there is provided one
Machine tool chief axis axis position acquisition device and acquisition methods are planted, it can accurately determine machine tool chief axis axis
Position and without carrying out sacrificial cutting to workpiece.
For achieving the above object, the present invention is adopted the following technical scheme that：
According to an aspect of the present invention, a kind of machine tool chief axis axis position acquisition device, the lathe
Including support platform, the machine tool chief axis and knife rest that are respectively arranged in the support platform, the knife rest is used
In installation cutter.The machine tool chief axis axis position acquisition device includes Hexapod mobile platforms, auxiliary
Help calibrating device, laser sensor and controller.Hexapod mobile platforms include upper mounting plate, lower platform with
And 6 expansion links between the upper mounting plate and lower platform are connected to, the lower platform is installed on the knife
On frame, in the upper mounting plate middle position, the Hexapod mobile platforms have difference to the Cutting tool installation manner
Along the one-movement-freedom-degree of X-direction, Y direction and Z-direction movement and respectively along U directions, V
The rotational freedom in direction and W directions amounts to 6 frees degree；Assisted calibration part is for installation into the machine
Bed spindle nose, including an oblate cylindricality end plate, the axis of the oblate cylindricality end plate and the machine tool chief axis
Axis on the same line, the end face of the oblate cylindricality end plate is vertical with the axis of the machine tool chief axis；
Laser sensor is installed on the upper mounting plate；Controller can control the upper of the Hexapod mobile platforms
Platform controls the laser sensor to exist along one or more free degree activities in 6 frees degree
The oblate cylindricality end plate is scanned in the upper mounting plate active procedure, and scan data is sent to
The controller, the controller obtains the machine tool chief axis axis line position and exists according to the scan data
Linear equation in Hexapod coordinate systems.
According to another aspect of the present invention, a kind of machine tool chief axis axis location acquiring method, for a lathe,
The lathe includes support platform, the machine tool chief axis and knife rest being respectively arranged in the support platform, institute
Knife rest is stated for installing cutter, machine tool chief axis axis location acquiring method is comprised the following steps：
A Hexapod mobile platforms are provided, it includes upper mounting plate, lower platform and is connected to described flat
6 expansion links between platform and lower platform, the lower platform is installed on the knife rest, the cutter peace
Loaded on the upper mounting plate middle position, the Hexapod mobile platforms have respectively along X-direction, Y-axis
Direction and Z-direction movement one-movement-freedom-degree and respectively along U directions, V directions and W directions
Rotational freedom amounts to 6 frees degree, and the lower platform is installed on the knife rest；By the cutter
It is installed on the upper mounting plate middle position；
One laser sensor is provided, and is installed on the upper mounting plate；
One assisted calibration part is provided, and attaches it to the machine tool chief axis end, the assisted calibration part bag
Include an oblate cylindricality end plate, the axis of the axis of the oblate cylindricality end plate and the machine tool chief axis is same
On straight line, the end face of the oblate cylindricality end plate is vertical with the axis of the machine tool chief axis；And
A controller is provided, the controller can control the upper mounting plate of the Hexapod mobile platforms along 6
One or more free degree activities in the individual free degree, and the laser sensor is controlled in the upper mounting plate
The oblate cylindricality end plate is scanned in active procedure, and scan data is sent to the controller,
The controller obtains the linear equation of the machine tool chief axis axis line position according to the scan data.
As shown from the above technical solution, machine tool chief axis axis position acquisition device of the invention and acquisition side
The advantage and good effect of method be：
Position acquisition device in machine tool chief axis axis of the present invention include be installed on lathe cutter saddle with 6
The Hexapod mobile platforms of the free degree, the laser sensor on Hexapod mobile platforms, peace
Loaded on assisted calibration part and controller on machine tool chief axis.Under Hexapod coordinate systems, controller control
In active procedure, laser sensor is to the oblate cylindricality in assisted calibration part for Hexapod mobile platforms processed
End plate end face is scanned, and the position equation of machine tool chief axis axis is obtained according to scan data.This hair
Bright machine tool chief axis axis location acquiring method, without carrying out sacrificial cutting to workpiece, and can be quick accurate
Machine tool chief axis axis position equation is really obtained, operating efficiency greatly improved.
Brief description of the drawings
It is of the invention each by being considered in conjunction with the accompanying following the following detailed description of the embodiment of the present invention
Target, feature and advantage is planted to will become apparent.Accompanying drawing is only exemplary diagram of the invention,
It is not necessarily drawn to scale.In the accompanying drawings, same reference represents same or similar all the time
Part.Wherein：
Fig. 1 is a kind of machine tool chief axis axis position acquisition device according to an illustrative embodiments
Structural representation.
Fig. 2A is a kind of machine tool chief axis axis position acquisition according to an illustrative embodiments
The structural representation of the Hexapod mobile platforms in device.
Fig. 2 B are the side views of Fig. 2A.
Fig. 2 C are the top views of Fig. 2A.
Fig. 3 is that the laser sensor 3 according to an illustrative embodiments enters under control of the controller
Capable one-dimensional scanning process schematic.
Specific embodiment
Example embodiment is described more fully with below with reference to the accompanying drawings.However, example embodiment can
Implement in a variety of forms, and be not understood as limited to implementation method set forth herein；Conversely, there is provided this
A little implementation methods cause that the present invention fully and completely, and the design of example embodiment will be passed on comprehensively
To those skilled in the art.Identical reference represents same or similar structure in figure, thus will
Omit their detailed description.
Machine tool chief axis axis position acquisition device
Machine tool chief axis axis position acquisition device of the present invention, is mainly used in a lathe, by Hexapod
The synergy of mobile platform, laser sensor, controller and assisted calibration part determines machine tool chief axis
The position equation of axis.
Referring to 1.Fig. 1 is a kind of machine tool chief axis axis line position according to an illustrative embodiments
The structural representation of acquisition device.The machine tool chief axis axis position acquisition device is mainly used in a lathe,
Certainly it is not limited, it can also be applied to others it needs to be determined that the field of the axis line position of rotary shaft
Close.The dependency structure of lathe is briefly described below, lathe includes support platform 100, is respectively arranged in branch
Spindle carrier 110 and knife rest 120 on support platform 100.Machine tool chief axis are installed on spindle carrier 110
10, work piece holder 20 is coaxially installed with machine tool chief axis 10.Knife rest 120 is used to install cutter 30.
Machine tool chief axis axis position acquisition device include Hexapod mobile platforms 1, laser sensor 3,
Assisted calibration part 4 and controller.In the implementation method, the lower platform 11 of Hexapod mobile platforms 1
It is installed on knife rest 120, cutter 30 is installed on states the middle position of upper mounting plate 11.
Referring to Fig. 2A, Fig. 2 B and Fig. 2 C.Fig. 2A is the one kind according to an illustrative embodiments
The structural representation of the Hexapod mobile platforms in the position acquisition device of machine tool chief axis axis.Fig. 2 B
With side view, the top view that Fig. 2 C are respectively Hexapod mobile platforms.
Hexapod mobile platforms 1 include upper mounting plate 11, lower platform 12 and are connected to the and of upper mounting plate 11
6 expansion links 13 between lower platform 12.Every expansion link 13 can shorten along its axial elongation,
Under the fixing situation of lower platform 12, the expansion link 13 of variant position is stretched in 6 expansion links 13
Action, drives the activity of upper mounting plate 11, so that the upper mounting plate 11 has 6 frees degree, respectively along X
Direction of principal axis, Y direction and Z-direction movement one-movement-freedom-degree and respectively along U directions, V directions
With the rotational freedom in W directions.
Referring to 1.Assisted calibration part 4 can be installed to the end of machine tool chief axis 10.Assisted calibration part 4 includes
One oblate cylindricality end plate 41 and a cylinder 42.Cylinder 42 has first end and the second end, and this first
End can be installed on machine tool chief axis 10, and oblate cylindricality end plate 41 is integrally formed or is fixedly connected on this
The second end of cylinder 42.The cylinder 42 of assisted calibration part 4 is coaxial with machine tool chief axis 10, that is to say, that
The axis of cylinder 42 is with the axis of machine tool chief axis 10 on the same line.Assisted calibration part 4 it is oblate
The end face 411 of cylindricality end plate 41 is vertical with the axis of machine tool chief axis 10, so that oblate cylindricality end plate 41
The central point of end face 411 is on the axis of machine tool chief axis 10.
In one embodiment, in order to lift calibration accuracy, the cylindricity of the cylinder of assisted calibration part 4 is missed
Difference is not more than 2 microns, and the flatness error of the end face 411 of oblate cylindricality end plate 41 is not more than 2 microns.
It should be appreciated that it is only exemplary to the description of assisted calibration part 4 above, do not constitute to this hair
Bright limitation.Assisted calibration part 4 can also be other structures form, for example, assisted calibration part 4 can be with
Claw or dowel of machine examination main shaft 10, etc. are fixed on including an oblate cylindricality end plate and by oblate cylindricality end plate.
As long as comprising in an end face and the end face vertical with the axis of machine tool chief axis 10 in assisted calibration part 4
Structure of the heart point on the axis of machine tool chief axis 10 may be applicable to the present invention.
In other embodiments, for example, because workpiece end face is smaller or the reason such as out-of-flatness, and
In the case of needing that workpiece is installed on machine tool chief axis 10 by a work piece holder 20, assisted calibration part
4 can be installed on work piece holder 20.
Referring to 1.Laser sensor 3 is installed on the upper mounting plate 11 of Hexapod mobile platforms 1, can be with
The position of neighbouring cutter 30 is installed on, but is not limited.Laser sensor 3 can be believed comprising a laser
Number transmitter and a laser signal receivers.
Controller, it can control the upper mounting plate 11 of Hexapod mobile platforms along in 6 frees degree
One or more free degree activities, and control laser sensor 3 in the active procedure of upper mounting plate 11 to oblate
The end face 411 of cylindricality end plate 41 is scanned, and scan data is sent into controller, controller according to
The scan data obtains the linear equation of machine tool chief axis axis line position.
In one embodiment, controller can control laser sensor to carry out two dimension to oblate cylindricality end plate to sweep
Retouch, and determine side of the axis of machine tool chief axis in Hexapod coordinate systems according to the two-dimensional scan data
To vector, controller can calculate the distance between oblate cylindricality end plate and laser sensor；Controller energy
Control laser sensor carries out one-dimensional scanning to oblate cylindricality end plate, and is determined according to the one-dimensional scanning data
Position coordinates of the central point of the end face of oblate cylindricality end plate in Hexapod coordinate systems, so as to obtain machine
The linear equation of bed main shaft axis line position.
Machine tool chief axis axis location acquiring method
Machine tool chief axis axis of the present invention location acquiring method, provides lathe master as described in the present invention first
Axis in axis line position acquisition device, then under Hexapod coordinate systems, controller control Hexapod is moved
In active procedure, laser sensor is carried out moving platform to the oblate cylindricality end plate end face in assisted calibration part
Scanning, and the position equation of machine tool chief axis axis is obtained according to scan data.
Referring to Fig. 3.Fig. 3 is laser sensor 3 according to an illustrative embodiments in controller
The one-dimensional scanning process schematic carried out under control.It is detailed below in conjunction with Fig. 3 and Hexapod coordinate systems
Describe bright machine tool chief axis axis of the present invention location acquiring method in detail.
It is determined that before machine tool chief axis axis line position, workpiece to be processed can be passed through into work piece holder 20
As vacuum cup is installed to the end of machine tool chief axis 10, assisted calibration part 4 is installed on work piece holder 20,
In the case of without work piece holder 20, assisted calibration part 4 be to be mounted directly into the end of machine tool chief axis 10.
Traditional method of adjustment can be used, adjustment ensures that assisted calibration part 4 is coaxial with machine tool chief axis 10
Degree, such as method of adjustment can be such：Rotation machine tool chief axis 10, the cylinder of measurement assisted calibration part 4
The radial run-out value in face, it is micro- when peak value occur in jitter values by tapping the means such as assisted calibration part 4
The position (location of workpiece is synchronized adjustment) of assisted calibration part 4 is adjusted, manually adjusting can will aid in school
The radial run-out value of quasi- part 4 is controlled within 2~3 microns.
Certainly, make the method for adjustment that assisted calibration part 4 is coaxial with machine tool chief axis 10, be not limited to above-mentioned tool
Body is described, and other methods of adjustment such as adjust automatically axiality method and the semi-automatic adjustment of supplementary instrument is same
Axle degree method goes for the present invention.
Under Hexapod coordinate systems, the position coordinates of the laser beam emitting point of laser sensor is
(XL,YL,ZL), the normal side of the direction of the launch of laser beam and the upper mounting plate 11 of Hexapod mobile platforms 1
To identical, if the normal direction of upper mounting plate 11 vector of Hexapod is (UH,VH,WH), then laser beam
The direction of the launch also be (UH,VH,WH)。
After assisted calibration part 4 is completed with the axiality adjustment of machine tool chief axis 10, controller control laser
Sensor 3 carries out 2 dimension scannings.For example, the upper mounting plate of controller control Hexapod mobile platforms 1
In 11 rotation process along U axles and/or V axles, end of the laser sensor 3 to oblate cylindricality end plate 41
Face 411 is scanned, and scan data is sent into controller；When the signal of laser signal receivers exists
When there is peak value in scanning process, the direction where moment W axles is exactly the axis of machine tool chief axis 10
Direction.Therefore, by the method for 2 dimension scannings, the side of the axis of machine tool chief axis 10 can be accurately obtained
To vector (UH,VH,WH)。
The laser signal transmitter of laser sensor can be launched along the z-axis direction of Hexapod mobile platforms 1
Laser signal, the laser signal returns to laser signal and receives after being reflected through the end face 411 of assisted calibration part 4
Device.Controller just can accurately be planned to calculate auxiliary by calculating the time difference that laser signal sends and receives
The distance between end face 411 and laser sensor of calibrating device 4, further calculate Hexapod movements
The distance between the central point of the upper mounting plate 11 of platform and the end face 411 of assisted calibration part 4, this is full apart from d
Sufficient equation：
D=d1+ZL
Wherein d1It is the distance between end face 411 and laser sensor 3 of assisted calibration part 4, by laser
The measurement of sensor 3 is obtained, ZLIt is the height of laser sensor 3
After the direction vector of axis of machine tool chief axis 10 is obtained, adjust under control of the controller
The position of upper mounting plate 11 of Hexapod mobile platforms 1, makes the normal direction and machine tool chief axis of upper mounting plate 11
10 axis direction overlap.Next, controller control laser sensor 3 carries out one-dimensional scanning.Citing
For, as shown in figure 3, when the upper mounting plate 11 of Hexapod mobile platforms 1 was moved in the X-axis direction
Cheng Zhong, laser sensor 3 is scanned to the end face 411 of oblate cylindricality end plate 41, and by scan data
Controller is sent to, when the first time of laser sensor 3 step signal is detected, now oblate cylindricality end
The coordinate of the central point of end face 411 of plate 41 is (X1,Y1,Z1), when controller detects step letter for the second time
Number when, now the coordinate of the central point of end face 411 of oblate cylindricality end plate 41 be (X2,Y1,Z1).Laser
Sensor 3 when controller detects step signal for the first time, the now end face 411 of oblate cylindricality end plate 41
The coordinate of central point is (X3,Y3,Z1), when laser sensor 3 detects step signal second, now
The coordinate of the central point of end face 411 of oblate cylindricality end plate 41 is (X3,Y4,Z1)].Therefore, in Hexapod
Under coordinate system, the position of the end face 411 of the oblate cylindricality end plate 41 of assisted calibration part 4 isFinally, the axis of machine tool chief axis 10 is obtained in Hexapod coordinate systems
Linear equation (x, y, z) is：
The axis of machine tool chief axis 10 is being determined after the linear equation of Hexapod coordinate systems, you can control
System carries out follow-up processing according to the linear equation.When lathe is processed, by controlling Hexapod
The translational and rotational movement of the upper mounting plate 11 of mobile platform 1 is carried out to workpiece surface controlling cutter 30
Cutting.Under Hexapod coordinate systems, the position coordinates of the cutting point of cutter 30 can be moved by Hexapod
The center position coordinates of upper mounting plate 11 of moving platform 1, the geometric parameter of cutter and workpiece to be processed surface shape
Shape is calculated, then the position coordinates of Tool in Cutting point is represented by (XT,YT,ZT), tool orientation with
The normal direction of upper mounting plate 11 of Hexapod mobile platforms 1 is identical, is (UH,VH,WH)。
Some currently preferred embodiments of the present invention formula has been illustrated above in association with accompanying drawing.But implementation of the invention
Example is not limited to specific embodiment as described herein, conversely, the part and/or step of each embodiment
Independently and can be used separately with other parts as described herein and/or step.One embodiment it is every
Individual part and/or each step can also be combined with other parts and/or step of other embodiments
Use.When described here and/or diagram key element/part/wait is introduced, term " one ", " one ",
" being somebody's turn to do ", " described " and " at least one " be used to represent exist one or more elements/part/etc..Term
"comprising", " comprising " and " having " are used to represent the open meaning being included and refer to except row
Also there may be outside the key element/part for going out/wait other key element/part/etc..Additionally, right will
Ask the term " first ", " second " and " the 3rd " in book etc. only to be used as mark, be not to its object
Numerical limit.General technical staff of the technical field of the invention should be appreciated that above-mentioned specific embodiment party
What concrete structure and technical process shown in formula part were merely exemplary, and it is nonrestrictive.And
And, general technical staff of the technical field of the invention can be to the various technical characteristics shown in the above
It is combined to constitute new technical scheme according to various possible modes, or carries out other changes, and
It is within the scope of the present invention.
Claims (12)
1. a kind of machine tool chief axis axis position acquisition device, the lathe includes support platform, pacifies respectively
Loaded on machine tool chief axis and knife rest in the support platform, the knife rest is used to install cutter, it is characterised in that
The machine tool chief axis axis position acquisition device includes：
Hexapod mobile platforms, it includes upper mounting plate, lower platform and is connected to the upper mounting plate and lower flat
6 expansion links between platform, the lower platform is installed on the knife rest, and the Cutting tool installation manner is on described
Platform central position, the Hexapod mobile platforms have respectively along X-direction, Y direction and Z axis
The one-movement-freedom-degree of direction movement and the rotational freedom respectively along U directions, V directions and W directions are common
6 frees degree of meter；
Assisted calibration part, for installation into the machine tool chief axis end, including an oblate cylindricality end plate, this is flat
The axis of the axis of cylindrical end plate and the machine tool chief axis on the same line, the oblate cylindricality end plate
End face is vertical with the axis of the machine tool chief axis；
Laser sensor, it is installed on the upper mounting plate；And
Controller, it can control the upper mounting plate of the Hexapod mobile platforms along in 6 frees degree
Individual or multiple free degree activities, and control the laser sensor in the upper mounting plate active procedure to described
Oblate cylindricality end plate is scanned, and scan data is sent into the controller, and the controller is according to this
Scan data obtains linear equation of the machine tool chief axis axis line position in Hexapod coordinate systems.
2. machine tool chief axis axis position acquisition device as claimed in claim 1, it is characterised in that institute
Stating controller can control the laser sensor to carry out two-dimensional scan to the oblate cylindricality end plate, and according to this
Two-dimensional scan data determine direction vector of the axis of the machine tool chief axis in Hexapod coordinate systems, institute
Stating controller can calculate the distance between the oblate cylindricality end plate and laser sensor；The controller energy
Controlling the laser sensor carries out one-dimensional scanning to the oblate cylindricality end plate, and according to the one-dimensional scanning number
According to position coordinates of the central point of the end face for determining the oblate cylindricality end plate in Hexapod coordinate systems, from
And obtain the linear equation of the machine tool chief axis axis line position.
3. machine tool chief axis axis position acquisition device as claimed in claim 1, it is characterised in that institute
Laser sensor is stated in the installation site of the upper mounting plate near the cutter.
4. machine tool chief axis axis position acquisition device as claimed in claim 1, it is characterised in that institute
Stating assisted calibration part also includes：
Cylinder, it has first end and the second end, and the first end is installed on the machine tool chief axis, should
Cylinder is coaxial with the machine tool chief axis；
The oblate cylindricality end plate is formed at the second end of the cylinder.
5. machine tool chief axis axis position acquisition device as claimed in claim 4, it is characterised in that institute
The deviation from cylindrical form for stating cylinder is not more than 2 microns, and the end face plane degree error of the oblate cylindricality end plate is little
In 2 microns.
6. the machine tool chief axis axis position acquisition device as described in any one of Claims 1 to 5, it is characterised in that
The machine tool chief axis end is provided with work piece holder, and the assisted calibration part is installed on the work piece holder.
7. a kind of machine tool chief axis axis location acquiring method, for a lathe, the lathe includes that support is flat
Platform, the machine tool chief axis and knife rest being respectively arranged in the support platform, the knife rest are used to install cutter,
Characterized in that, machine tool chief axis axis location acquiring method, comprises the following steps：
A Hexapod mobile platforms are provided, it includes upper mounting plate, lower platform and is connected to the upper mounting plate
6 expansion links and lower platform between, the lower platform is installed on the knife rest, the Cutting tool installation manner in
The upper mounting plate middle position, the Hexapod mobile platforms have respectively along X-direction, Y direction
With Z-direction move one-movement-freedom-degree and respectively along U directions, V directions and W directions rotation from
6 frees degree are amounted to by degree, the lower platform is installed on the knife rest；By the Cutting tool installation manner in institute
State upper mounting plate middle position；
One laser sensor is provided, and is installed on the upper mounting plate；
One assisted calibration part is provided, and attaches it to the machine tool chief axis end, the assisted calibration part includes
One oblate cylindricality end plate, the axis of the axis of the oblate cylindricality end plate and the machine tool chief axis is in same straight line
On, the end face of the oblate cylindricality end plate is vertical with the axis of the machine tool chief axis；And
A controller is provided, the controller can control the upper mounting plate of the Hexapod mobile platforms along 6
One or more free degree activities in the individual free degree, and control the laser sensor to be lived in the upper mounting plate
The oblate cylindricality end plate is scanned during dynamic, and scan data is sent to the controller, institute
State the linear equation that controller obtains the machine tool chief axis axis line position according to the scan data.
8. machine tool chief axis axis as claimed in claim 7 location acquiring method, it is characterised in that institute
Stating controller can control the laser sensor to carry out two-dimensional scan to the oblate cylindricality end plate, and according to this
Two-dimensional scan data determine direction vector of the axis of the machine tool chief axis in Hexapod coordinate systems, institute
Stating controller can calculate the distance between the oblate cylindricality end plate and laser sensor；The controller energy
Controlling the laser sensor carries out one-dimensional scanning to the oblate cylindricality end plate, and according to the one-dimensional scanning number
According to position coordinates of the central point of the end face for determining the oblate cylindricality end plate in Hexapod coordinate systems, from
And obtain the linear equation of the machine tool chief axis axis line position.
9. machine tool chief axis axis as claimed in claim 7 location acquiring method, it is characterised in that institute
Laser sensor is stated in the installation site of the upper mounting plate near the cutter.
10. machine tool chief axis axis as claimed in claim 7 location acquiring method, it is characterised in that institute
Stating assisted calibration part also includes：
Cylinder, it has first end and the second end, and the first end is installed on the machine tool chief axis, should
Cylinder is coaxial with the machine tool chief axis；
The oblate cylindricality end plate is formed at the second end of the cylinder.
11. machine tool chief axis axis as claimed in claim 10 location acquiring methods, it is characterised in that
The deviation from cylindrical form of the cylinder is not more than 2 microns, and the end face plane degree error of the oblate cylindricality end plate is not
More than 2 microns.
The 12. machine tool chief axis axis position acquisition device as described in any one of claim 7~11, it is characterised in that
The machine tool chief axis end is provided with work piece holder, and the assisted calibration part is installed on the work piece holder.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109719701A (en) * | 2017-10-31 | 2019-05-07 | 香港理工大学深圳研究院 | Mechanical arm configuration, numerically-controlled machine tool rest, numerically-controlled machine tool |
| EP3715780A4 (en) * | 2019-01-24 | 2021-01-13 | Dalian University Of Technology | 1d displacement sensor-based 3d measurement model and spatial calibration method |
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| CN109719701A (en) * | 2017-10-31 | 2019-05-07 | 香港理工大学深圳研究院 | Mechanical arm configuration, numerically-controlled machine tool rest, numerically-controlled machine tool |
| EP3715780A4 (en) * | 2019-01-24 | 2021-01-13 | Dalian University Of Technology | 1d displacement sensor-based 3d measurement model and spatial calibration method |
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| CN106735347B (en) | 2018-08-07 |
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