CN109269392B - It is in electrical contact the insulating materials apparent height measuring device and method of feedback - Google Patents
It is in electrical contact the insulating materials apparent height measuring device and method of feedback Download PDFInfo
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- CN109269392B CN109269392B CN201811290398.1A CN201811290398A CN109269392B CN 109269392 B CN109269392 B CN 109269392B CN 201811290398 A CN201811290398 A CN 201811290398A CN 109269392 B CN109269392 B CN 109269392B
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- 239000011810 insulating material Substances 0.000 title claims abstract description 47
- 238000000034 method Methods 0.000 title claims abstract description 25
- 238000003754 machining Methods 0.000 claims abstract description 25
- 238000009413 insulation Methods 0.000 claims abstract description 13
- 238000000691 measurement method Methods 0.000 claims description 7
- 238000001514 detection method Methods 0.000 claims description 4
- 238000005259 measurement Methods 0.000 description 13
- 230000008569 process Effects 0.000 description 9
- 239000000463 material Substances 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 208000027418 Wounds and injury Diseases 0.000 description 2
- 230000009471 action Effects 0.000 description 2
- 230000008901 benefit Effects 0.000 description 2
- 230000006378 damage Effects 0.000 description 2
- 208000014674 injury Diseases 0.000 description 2
- 239000004020 conductor Substances 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000011017 operating method Methods 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/02—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness
- G01B7/06—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring length, width or thickness for measuring thickness
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B7/00—Measuring arrangements characterised by the use of electric or magnetic techniques
- G01B7/34—Measuring arrangements characterised by the use of electric or magnetic techniques for measuring roughness or irregularity of surfaces
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
The invention discloses the insulating materials apparent height measuring devices and method of a kind of electrical contact feedback, wherein the device includes: conducting rod for generating short-circuit signal with moving to contact conductive terminal in feeding when contacting with workpiece surface；Guide rail is used to provide track for conducting rod, slides up and down conducting rod with feeding；First insulating support is used to for the insulating materials apparent height measuring device of electrical contact feedback being fixed on the Z axis of machining tool；Second insulating support is used to for conducting rod being fixed on the sliding block of guide rail；It is in electrical contact the motion command that motion feedback system is used to issue feeding to machining tool or stop, the Z-direction position of conducting rod and workpiece surface contact point is recorded when detecting short-circuit signal, height distributed collection is obtained by recording multiple Z-direction positions, and determines the irregularity degree of workpiece surface by deviation.The apparatus structure is compact small and exquisite, is easy to integrated with electromechanical digital control system, reduces the rapid survey of insulation work surface location and the difficulty of adjustment.
Description
Technical field
The present invention relates to micro-NTM technical field, in particular to a kind of insulating materials surface of electrical contact feedback is high
Spend measuring device and method.
Background technique
Micro-NTM generally uses computer numerical control to realize that accurately walking for cutter opposite piece is preferable to obtain
Machining accuracy.The installation error of workpiece directly affects the precision of processing part, to realize degree of precision processing on workpiece, needs
The relative position for system of processing, i.e. centering process are leveled or determined before processing to workpiece.
Electrical contact method can be directly used to knife centering for conductive material workpieces centering, precision is high and convenient and efficient.Its
Basic principle: it is positive and negative to be connect power supply by a pole and electrically conductive workpiece another pole as electrode of the cutter as electrode respectively for this two poles of the earth
Pole；Tool electrode is fed under numerical control software control according to predetermined speed, route, is produced when the moment that tool electrode is contacted with workpiece
Short-circuit signal is given birth to, records current tool position after COMPUTER DETECTION to this signal.It repeats the above steps in workpiece surface multiple spot,
Workpiece surface height and the installation error relative to machine tool system can be measured respectively, and obtained error is measured according to this, into
And within the scope of the adjustable location of workpiece to permissible value, that is, realize workpiece centering installation process.
When workpiece is insulating materials, tool electrode (or tool-electrode) and workpiece cannot generate short-circuit signal when contacting,
It not can be used directly existing electrical contact method and realize workpiece centering.The levelling method of existing insulating materials workpiece mainly has: (1)
It is levelling that CCD (Charge-coupled Device, charge coupled cell) visually surveys gap auxiliary: the disadvantage is that cumbersome, precision
Difference requires operator high；(2) micro-torque sensor auxiliary is levelling: measurement accuracy directly relies on the resolution essence of torque sensor
Degree, cost is higher, and sensitive to workpiece surface roughness and rigidity；(3) it is levelling to survey gap auxiliary for standard film: not applicable workpiece table
The uneven situation in face, and measurement accuracy is limited by standard film size and shape；(4) ultrasound processes gap method:
This is a kind of method that the workpiece of realization indirectly is levelling, is limited by Working table structure, complicated for operation, affected by environment big.
Therefore, existing method be difficult to realize low cost, high-precision quickly to insulating materials workpiece surface elevation carrection and
It is levelling.
Summary of the invention
The present invention is directed to solve at least some of the technical problems in related technologies.
For this purpose, an object of the present invention is to provide a kind of insulating materials apparent heights of electrical contact feedback to measure dress
It sets.
It is another object of the present invention to the insulating materials apparent height measurement methods for proposing a kind of electrical contact feedback.
In order to achieve the above objectives, one aspect of the present invention proposes the insulating materials apparent height measurement dress of electrical contact feedback
It sets, comprising: conducting rod and conductive terminal, the conductive terminal and the conducting rod are separately connected two poles, wherein described to lead
Electric terminal is for generating short-circuit signal when contacting with the conducting rod, with feeding when the conducting rod is used to contact with workpiece surface
On move to the contact conductive terminal and generate the short-circuit signal；Guide rail makes described lead for providing track for the conducting rod
Electric pole is slided up and down with feeding；First insulating support, for the insulating materials apparent height of the electrical contact feedback to be measured dress
It sets on the Z axis for being fixed on machining tool；Second insulating support, for the conducting rod to be fixed on to the sliding block of the guide rail；
It is in electrical contact motion feedback system, the motion command for issuing feeding to the machining tool or stopping is described short when detecting
The Z-direction position that the conducting rod Yu workpiece surface contact point are recorded when the signal of road is obtained by recording multiple Z-direction positions
To the height distributed collection of the workpiece surface, and the set deviation for analyzing the height distributed collection determines the workpiece surface
Irregularity degree.
The insulating materials apparent height measuring device of the electrical contact feedback of the embodiment of the present invention, passes through the power of fixed length conducting rod
It transmits with electric action and generates electrical contact short-circuit signal, receive electrical contact short circuit using electrical contact motion feedback system and believe
Number, and moment records current insulating materials surface location, realizes that measurement obtains the single-point height of this contact point, then pass through above-mentioned mistake
Cheng Jinhang multimetering can measure the height of material surface each point, obtain its deviation to insulating materials surface centering.The present invention
Embodiment can use the precise measurement that non-smooth non-conducting surfaces height is realized in low pressure electrical contact, and measuring device is at low cost, grasps
Facilitate, and be easy to integrated with electromechanical digital control system, can integrate and be applied on various machining tools, it can be real by numerical control program
Existing full-automation measurement process, realizes the rapid survey and adjustment of insulation work surface location, reduces operation difficulty.
In addition, the insulating materials apparent height measuring device of electrical contact feedback according to the above embodiment of the present invention can be with
With following additional technical characteristic:
Further, in one embodiment of the invention, further includes: spring, for the fixed length conducting rod not by
When external force, the fixed length conducting rod and the conductive terminal fixed interval (FI) are kept.
Further, in one embodiment of the invention, the conducting rod is fixed length conducting rod, the fixed length conducting rod
It is set at the pre-determined distance of the conductive terminal lower end.
Further, in one embodiment of the invention, when the fixed length conducting rod touches the workpiece surface, institute
The fixed length conducting rod compressing spring is stated to move up.
Further, in one embodiment of the invention, the electrical contact motion feedback system controls the processing machine
The Z axis of bed, which is fed down, makes fixed length conducting rod bottom contact workpiece surface, continues feeding so that fixed length conducting rod edge
The guide rail is mobile, generates the short-circuit signal to contact the conductive terminal.
Further, in one embodiment of the invention, the electrical contact motion feedback system controls the processing machine
The Z axis feeding of bed, when the electrical contact motion feedback system receives the short-circuit signal, moment records the Z axis of contact point
Direction position is set to Z1, and feed-disabling.
Optionally, in one embodiment of the invention, n times detection is repeated to the insulation workpiece multiple spot, the electricity connects
Touching motion feedback system, which repeatedly records, obtains the height distributed collection { Z1, Z2 ... ..., Zn } of the workpiece surface.
Further, in one embodiment of the invention, the set deviation application standard deviation of the height distributed collection
Formula, as follows:
Wherein, n is number of repetition, ZiIndicate each moment record contact point Z axis coordinate value,Indicate each moment record contact
The average value of point Z axis coordinate value.
Further, in one embodiment of the invention, the workpiece is adjusted according to standard deviation s, makes the difference s
It is reduced to preset threshold, realizes the workpiece centering.
In order to achieve the above objectives, the insulating materials apparent height that another aspect of the present invention proposes a kind of electrical contact feedback is surveyed
Amount method, comprising the following steps: S1 controls the feeding of machining tool Z axis so that conducting rod bottom by electrical contact motion feedback system
Portion contact workpiece surface；S2, continuing feeding by electrical contact motion feedback system control machining tool Z axis makes the conduction
Bar is moved along guide rail, generates short-circuit signal to contact conductive terminal；S3 is short in generation by the electrical contact motion feedback system
The Z-direction position of the conducting rod Yu the workpiece surface contact point is recorded when the signal of road；S4 repeats the above-mentioned step of n times
Rapid S1-S3 obtains the height distributed collection of the workpiece surface, and the set deviation for analyzing the height distributed collection determines institute
State the irregularity degree of workpiece surface.
The insulating materials apparent height measurement method of the electrical contact feedback of the embodiment of the present invention, can use low pressure electrical contact
The precise measurement for realizing non-smooth non-conducting surfaces height, can integrate and be applied on various machining tools, pass through numerical control program
Full-automation measurement process can be achieved, realize the rapid survey and adjustment of insulation work surface location, reduce operation difficulty.
The additional aspect of the present invention and advantage will be set forth in part in the description, and will partially become from the following description
Obviously, or practice through the invention is recognized.
Detailed description of the invention
Above-mentioned and/or additional aspect and advantage of the invention will become from the following description of the accompanying drawings of embodiments
Obviously and it is readily appreciated that, in which:
Fig. 1 is to be shown according to the insulating materials apparent height measuring device structure of the electrical contact feedback of one embodiment of the invention
It is intended to；
Fig. 2 is the insulating materials apparent height measuring process according to the electrical contact feedback of one specific embodiment of the present invention
Specific flow chart；
Fig. 3 is the elevation carrection and centering schematic diagram according to a specific embodiment of the invention；
Fig. 4 is the insulating materials apparent height measurement method process according to the electrical contact feedback of one embodiment of the invention
Figure.
Description of symbols: the insulating materials apparent height measuring device of 10- electrical contact feedback, 100- conducting rod, 200-
Conductive terminal, 300- guide rail, the first insulating support of 400-, the second insulating support of 500-, 600- electrical contact motion feedback system,
700- spring and 800- insulation workpiece.
Specific embodiment
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
The insulating materials apparent height for describing the electrical contact feedback proposed according to embodiments of the present invention with reference to the accompanying drawings is surveyed
Device and method is measured, describes the insulating materials surface of electrical contact feedback proposed according to embodiments of the present invention with reference to the accompanying drawings first
Height measuring device.
Fig. 1 is the insulating materials apparent height measuring device structural representation of the electrical contact feedback of one embodiment of the invention
Figure.
As shown in Figure 1, the insulating materials apparent height measuring device 10 of electrical contact feedback includes: conducting rod 100, conduction
Terminal 200, guide rail 300, the first insulating support 400, the second insulating support 500 and electrical contact motion feedback system 600.
Wherein, conductive terminal 200 and conducting rod 100 are separately connected two poles, and conductive terminal 200 with conducting rod for connecing
Short-circuit signal is generated when touching, conducting rod 100 is for short with contact conductive terminal generation is moved in feeding when contacting with workpiece surface
Road signal.
Guide rail 300 is used to provide track for conducting rod, slides up and down conducting rod with feeding.
First insulating support 400 is used to the insulating materials apparent height measuring device of electrical contact feedback being fixed on processing machine
On the Z axis of bed.
Second insulating support 500 is used to for conducting rod being fixed on the sliding block of guide rail.
It is in electrical contact the motion command that motion feedback system 600 is used to issue feeding to machining tool or stop, when detecting
The Z-direction position that conducting rod and workpiece surface contact point are recorded when short-circuit signal, is obtained by recording multiple Z-direction positions
The height distributed collection of workpiece surface, and the set deviation for analyzing height distributed collection determines the irregularity degree of workpiece surface.
It should be noted that the insulating materials apparent height measuring device 10 of the electrical contact feedback of the embodiment of the present invention is also wrapped
Include: spring 700 is used for when fixed length conducting rod is not by external force, keeps fixed length conducting rod and conductive terminal fixed interval (FI).
In one embodiment of the invention, conducting rod 100 is fixed length conducting rod, and fixed length conducting rod is set to conductive terminal
At the pre-determined distance of 200 lower ends.As an example, conducting rod fixed length is L1, and fixed length L1 conducting rod 100 is placed in conductive terminal
Under 200 really at set a distance L2.
Wherein, total is fixed on machining tool by the first insulating support 400, and the second insulating support 500 is by fixed length
Conducting rod 100 is fixed on 300 sliding block of guide rail and insulate.
To make fixed length conducting rod 100 when the Z axis that electrical contact motion feedback system 600 controls machining tool is fed down
Feeding is continued so that fixed length conducting rod 100 is moved along guide rail 300, to contact the generation of conductive terminal 200 in bottom contact workpiece surface
Short-circuit signal.
That is, fixed length conducting rod 100 contacts when electrical contact motion feedback system control machining tool is fed down
To workpiece surface, the pressuring spring 700 of the meeting of fixed length conducting rod 100 at this time moves up conducting rod 100 along guide rail until contacting conducting end
Son 200 generates short-circuit signal.
Next, electrical contact motion feedback system 700 controls the Z axis feeding of machining tool, when electrical contact motion feedback system
When system connects 700 and receives short-circuit signal, the Z-direction position that moment records contact point is Z1, and feed-disabling.At this point, record is fixed
The Z-direction position of long conducting rod and workpiece surface contact point.
Further, n times detection is repeated to insulation workpiece multiple spot, electrical contact motion feedback system, which repeatedly records, obtains workpiece
The height distributed collection { Z1, Z2 ... ..., Zn } on surface then applies the irregularity degree of standard deviation formula analysis workpiece surface.
Further, in one embodiment of the invention, the set deviation application standard deviation formula of height distributed collection,
It is as follows:
Wherein, n is number of repetition, ZiIndicate each moment record contact point Z axis coordinate value,Indicate each moment record contact
The average value of point Z axis coordinate value.
Workpiece is adjusted according to the calculated standard deviation s of standard deviation formula as a result, so that difference s is reduced to preset threshold, most
Workpiece centering is realized eventually.
In short, the measuring device concrete operation step of the embodiment of the present invention are as follows:
(1) height measuring device is fixed to existing machining tool Z axis, conductive terminal 200 by the first insulating support 400
Power positive cathode is connect respectively with fixed length conducting rod 100.
(2) electrical contact motion feedback system 600 controls Z axis and feeds down.
(3) when fixed length conducting rod 100 touches insulation workpiece 800,100 pressuring spring 700 of fixed length conducting rod is simultaneously moved up.
(4) it when fixed length conducting rod 100 touches conductive terminal 200, generates short-circuit signal and gives electrical contact motion feedback system
System 600, Z axis feed-disabling.
(5) electrical contact motion feedback system 600 records current Z axis height and position at this time.
(6) step (2)-(5) n times are repeated in insulation 800 multiple spot of workpiece, workpiece surface height distributed collection can be obtained
{ Z1, Z2 ... ..., Zn }, analytical standard is poorWorkpiece surface irregularity degree can be obtained.
(7) adjustment insulation workpiece 800 makes s value be reduced to tolerable injury level, realizes workpiece centering.
As Figure 2-3, below by taking the measuring device of the embodiment of the present invention is installed to Micro Edm Machine Tools as an example,
The operating procedure that the present invention will be described in detail is as follows:
(1) the invention measuring device is fixed to existing Micro Edm Machine Tools Z axis by the first insulating support 300
On main shaft, conductive terminal 200 and fixed length conducting rod 100 connect pulse power positive and negative anodes respectively.
(2) set the XY coordinate of Z axis at this time as (0mm, 0mm), electrical contact motion feedback system 600 control Z axis downwards into
It gives.
(3) when 100 lower end of fixed length conducting rod touches insulation workpiece 800,100 pressuring spring 700 of fixed length conducting rod is simultaneously
It moves up.
(4) when 100 upper-end contact of fixed length conducting rod is to conductive terminal 200, it is anti-to electrical contact movement to generate short-circuit signal
Feedback system 600, and Z axis coordinate value is recorded, Z axis feed-disabling.
(5) set at this time Z axis coordinate value as 0 μm.
(6) respectively movement Z axis to XY coordinate be (- 3mm, 0mm), (- 3mm, 3mm), (0mm, 3mm) position repetition step
(2)-(5) record each point Z axis coordinate value, obtain workpiece surface height distributed collection { 0 μm, 12 μm, 20 μm, 14 μm }, utilize work
Part surface measures four point height { Z1, Z2, Z3, Z4, height distribution curve is drawn, analytical standard is poorIt can
Obtaining workpiece surface irregularity degree is 8.39 μm.
(7) adjustment workpiece makes s < 5 μm, realizes workpiece centering.
To sum up, the measuring principle of the measuring device of the embodiment of the present invention are as follows: fixed length L1 conducting rod 100 is placed in conductive terminal
Really set a distance L2 under 200, is separately connected power supply for fixed length conducting rod 100 and conductive terminal 200.Being fed down by Z axis makes
Fixed length conducting rod bottom contact workpiece surface is obtained, continuing feeding moves fixed length conducting rod 100 along guide rail 300, to contact conduction
Terminal 200 generates short-circuit signal.Motion feedback system 600 is in electrical contact in the Z axis of transcient short circuit time record contact point to position Z1.Weight
Multiple above-mentioned steps n times, can be obtained workpiece surface height distributed collection { Z1, Z2 ... ..., Zn }, and analysis set deviation D (Z) can obtain
To workpiece surface irregularity degree.Finally adjustment workpiece, which makes D (Z) value be reduced to tolerable injury level, can be realized workpiece centering.
The insulating materials apparent height measuring device of the electrical contact feedback proposed according to embodiments of the present invention, is led by fixed length
The power transmitting of electric pole generates electrical contact short-circuit signal with electric action, receives electrical contact using electrical contact motion feedback system
Short-circuit signal, and moment records current insulating materials surface location, realizes that measurement obtains the single-point height of this contact point, then pass through
The above process carries out multimetering, can measure the height of material surface each point, obtain its deviation to insulating materials surface centering.
The embodiment of the present invention can use the precise measurement that non-smooth non-conducting surfaces height is realized in low pressure electrical contact, measuring device cost
It is low, easy to operate, and it is easy to integrated with electromechanical digital control system, it can integrate and be applied on various machining tools, pass through numerical control journey
Sequence can realize full-automatic measurement process, realize the rapid survey and adjustment of insulation work surface location, reduce operation difficulty.
It is surveyed referring next to the insulating materials apparent height for the electrical contact feedback that attached drawing description proposes according to embodiments of the present invention
Amount method.
Fig. 4 is the insulating materials apparent height measuring method flow chart of the electrical contact feedback of one embodiment of the invention.
As shown in Figure 1, the electrical contact feedback insulating materials apparent height measurement method the following steps are included:
In step sl, the feeding of machining tool Z axis is controlled so that conducting rod bottom connects by electrical contact motion feedback system
Touch workpiece surface.
In step s 2, continuing feeding by electrical contact motion feedback system control machining tool Z axis leads conducting rod edge
Rail is mobile, generates short-circuit signal to contact conductive terminal.
In step s3, conducting rod and workpiece surface are recorded when generating short-circuit signal by being in electrical contact motion feedback system
The Z-direction position of contact point.
In step s 4, n times above-mentioned steps S1-S3 is repeated, obtains the height distributed collection of workpiece surface, and analyze
The set deviation of height distributed collection determines the irregularity degree of workpiece surface.
It should be noted that the aforementioned insulating materials apparent height measuring device embodiment to electrical contact feedback is explained
Bright to be also applied for measurement method, details are not described herein again.
The insulating materials apparent height measurement method of the electrical contact feedback proposed according to embodiments of the present invention, can use low
Electric contact realizes the precise measurement of non-smooth non-conducting surfaces height, can integrate and is applied on various machining tools, passes through
Numerical control program can realize full-automatic measurement process, realize the rapid survey and adjustment of insulation work surface location, reduce behaviour
Make difficulty.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include at least one this feature.In the description of the present invention, the meaning of " plurality " is at least two, such as two, three
It is a etc., unless otherwise specifically defined.
In the present invention unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements, unless otherwise restricted clearly.For those of ordinary skill in the art
For, the specific meanings of the above terms in the present invention can be understood according to specific conditions.
In the present invention unless specifically defined or limited otherwise, fisrt feature in the second feature " on " or " down " can be with
It is that the first and second features directly contact or the first and second features pass through intermediary mediate contact.Moreover, fisrt feature exists
Second feature " on ", " top " and " above " but fisrt feature be directly above or diagonally above the second feature, or be merely representative of
First feature horizontal height is higher than second feature.Fisrt feature can be under the second feature " below ", " below " and " below "
One feature is directly under or diagonally below the second feature, or is merely representative of first feature horizontal height less than second feature.
In the description of this specification, reference term " one embodiment ", " some embodiments ", " example ", " specifically show
The description of example " or " some examples " etc. means specific features, structure, material or spy described in conjunction with this embodiment or example
Point is included at least one embodiment or example of the invention.In the present specification, schematic expression of the above terms are not
It must be directed to identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can be in office
It can be combined in any suitable manner in one or more embodiment or examples.In addition, without conflicting with each other, the skill of this field
Art personnel can tie the feature of different embodiments or examples described in this specification and different embodiments or examples
It closes and combines.
Although the embodiments of the present invention has been shown and described above, it is to be understood that above-described embodiment is example
Property, it is not considered as limiting the invention, those skilled in the art within the scope of the invention can be to above-mentioned
Embodiment is changed, modifies, replacement and variant.
Claims (9)
1. a kind of insulating materials apparent height measuring device of electrical contact feedback characterized by comprising
Conducting rod and conductive terminal, the conductive terminal and the conducting rod are separately connected two poles, wherein the conducting end
Son is for generating short-circuit signal when contacting with the conducting rod, the conducting rod when contacting with workpiece surface with feeding for moving up
The short-circuit signal is generated to the conductive terminal is contacted；
Guide rail slides up and down the conducting rod with feeding for providing track for the conducting rod；
First insulating support, for the insulating materials apparent height measuring device of the electrical contact feedback to be fixed on machining tool
Z axis on；
Second insulating support, for the conducting rod to be fixed on to the sliding block of the guide rail；And
It is in electrical contact motion feedback system, the motion command for issuing feeding to the machining tool or stopping, when detecting
The Z-direction position that the conducting rod Yu workpiece surface contact point are recorded when stating short-circuit signal, by recording multiple Z-direction positions
It sets to obtain the height distributed collection of the workpiece surface, and the set deviation for analyzing the height distributed collection determines the workpiece
The irregularity degree on surface；
Spring, for keeping the conducting rod and the conductive terminal fixed interval (FI) when the conducting rod is not by external force.
2. the insulating materials apparent height measuring device of electrical contact feedback according to claim 1, which is characterized in that described
Conducting rod is fixed length conducting rod, and the fixed length conducting rod is set at the pre-determined distance of the conductive terminal lower end.
3. the insulating materials apparent height measuring device of electrical contact feedback according to claim 1, which is characterized in that described
When conducting rod touches the workpiece surface, the conducting rod is oppressed the spring and is moved up.
4. the insulating materials apparent height measuring device of electrical contact feedback according to claim 1, which is characterized in that described
The Z axis that electrical contact motion feedback system controls the machining tool, which is fed down, makes the conducting rod bottom contact workpiece surface,
Continue feeding so that the conducting rod is moved along the guide rail, to contact the conductive terminal generation short-circuit signal.
5. the insulating materials apparent height measuring device of electrical contact feedback according to claim 4, which is characterized in that described
Electrical contact motion feedback system controls the Z axis feeding of the machining tool, when the electrical contact motion feedback system receives institute
When stating short-circuit signal, the Z-direction position that moment records contact point is Z1, and feed-disabling.
6. the insulating materials apparent height measuring device of electrical contact feedback according to claim 5, which is characterized in that institute
It states insulation workpiece multiple spot and repeats n times detection, the electrical contact motion feedback system, which repeatedly records, obtains the height of the workpiece surface
It spends distributed collection { Z1, Z2 ... ..., Zn }.
7. the insulating materials apparent height measuring device of electrical contact feedback according to claim 6, which is characterized in that described
The set deviation application standard deviation formula of height distributed collection, as follows:
Wherein, n is number of repetition, ZiIndicate each moment record contact point Z axis coordinate value,Indicate each moment record contact point Z axis
The average value of coordinate value.
8. the insulating materials apparent height measuring device of electrical contact feedback according to claim 7, which is characterized in that according to
Standard deviation s adjusts the workpiece, so that the difference s is reduced to preset threshold, realizes the workpiece centering.
9. a kind of insulating materials apparent height measurement method of electrical contact feedback, which is characterized in that any using claim 1-8
The insulating materials apparent height measuring device of electrical contact feedback described in, wherein the described method comprises the following steps:
S1 controls the feeding of machining tool Z axis so that conducting rod bottom contact workpiece surface by electrical contact motion feedback system；
S2, continuing feeding by electrical contact motion feedback system control machining tool Z axis moves the conducting rod along guide rail
It is dynamic, short-circuit signal is generated to contact conductive terminal；
S3 records the conducting rod and the workpiece surface when generating short-circuit signal by the electrical contact motion feedback system
The Z-direction position of contact point；
S4 repeats n times above-mentioned steps S1-S3, obtains the height distributed collection of the workpiece surface, and analyze the height
The set deviation of distributed collection determines the irregularity degree of the workpiece surface.
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| CN201811290398.1A CN109269392B (en) | 2018-10-31 | 2018-10-31 | It is in electrical contact the insulating materials apparent height measuring device and method of feedback |
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| CN201811290398.1A CN109269392B (en) | 2018-10-31 | 2018-10-31 | It is in electrical contact the insulating materials apparent height measuring device and method of feedback |
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| CN109269392B true CN109269392B (en) | 2019-10-29 |
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| CN109773290B (en) * | 2019-02-21 | 2020-06-02 | 清华大学 | Microsphere electric contact feedback insulation material workpiece surface alignment system and method |
| CN112710272A (en) * | 2019-10-24 | 2021-04-27 | 复盛应用科技股份有限公司 | Golf club head measuring method |
| CN114076567B (en) * | 2020-08-11 | 2024-04-02 | 鸿富锦精密电子（成都）有限公司 | Flatness detection device |
| CN113028979A (en) * | 2021-02-26 | 2021-06-25 | 北京农业智能装备技术研究中心 | Farmland surface flatness detection device and method |
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| CN109269392A (en) | 2019-01-25 |
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