CN106272069A - The circularity of a kind of external cylindrical surface grinding and linearity testing apparatus and detection method - Google Patents
The circularity of a kind of external cylindrical surface grinding and linearity testing apparatus and detection method Download PDFInfo
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- CN106272069A CN106272069A CN201510319154.1A CN201510319154A CN106272069A CN 106272069 A CN106272069 A CN 106272069A CN 201510319154 A CN201510319154 A CN 201510319154A CN 106272069 A CN106272069 A CN 106272069A
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- circularity
- displacement detecting
- detecting sensor
- workpiece
- detection
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/02—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent
- B24B49/04—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation according to the instantaneous size and required size of the workpiece acted upon, the measuring or gauging being continuous or intermittent involving measurement of the workpiece at the place of grinding during grinding operation
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B24—GRINDING; POLISHING
- B24B—MACHINES, DEVICES, OR PROCESSES FOR GRINDING OR POLISHING; DRESSING OR CONDITIONING OF ABRADING SURFACES; FEEDING OF GRINDING, POLISHING, OR LAPPING AGENTS
- B24B49/00—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation
- B24B49/08—Measuring or gauging equipment for controlling the feed movement of the grinding tool or work; Arrangements of indicating or measuring equipment, e.g. for indicating the start of the grinding operation involving liquid or pneumatic means
Abstract
The present invention relates to circularity and linearity testing apparatus and the detection method of a kind of external cylindrical surface grinding, detection device includes: the base (1) fixing with the fuselage of grinding machine, the support (2) being arranged on base (1), pivoted lever (8), displacement detecting sensor (9) and Signal Processing Element, one end of pivoted lever (8) is rotationally connected away from one end formation of base (1) with support (2), the other end of pivoted lever (8) is provided with displacement detecting sensor (9), the location parameter of the external cylindrical surface of workpiece (11) can be detected by displacement detecting sensor (9) in detection position;Signal Processing Element is able to receive that the location parameter that displacement detecting sensor (9) detects, and is converted to circularity and the linearity data of workpiece (11).The detection device of this kind of embodiment circularity and the linearity of cylinder grinding to foreign round can realize detection automatically, and improves accuracy of detection, thus improves machining accuracy.
Description
Technical field
The present invention relates to machining detection technique field, particularly relate to a kind of external cylindrical surface grinding
Circularity and linearity testing apparatus and detection method.
Background technology
Along with the progress of industry, in grinding field, the face of cylinder, public to the morpheme of circle product external
Margin is had higher requirement.In existing grinding process, typically workpiece is used special
Detecting instrument carry out circularity and Linearity surveying, further according to testing result correction grinding parameter.
But repeated disassembled and assembled carries out detecting the morpheme dimensional accuracy having had a strong impact on workpiece, and inefficiency.
Therefore, design and develop one and make workpiece in grinding process, directly pass through On-machine Test, no
It is the most necessary with the grinding cylinder face On-machine Test device repeatedly dismantled.
At present, prior art discloses a kind of external cylindrical surface grinding detection device, such as Fig. 1 institute
Show, including expansion link 3a, transmission lever 1a, prolong motion block 6a, spring 8a, amesdial 2a and shell
Body 7a, is wherein prolonged motion block 6a and is fixed on expansion link 3a by the second bolt 5a, expansion link
3a is fixed on housing 7a by the first bolt 4a, and spring 8a is positioned at transmission lever 1a, passes
Passing bar 1a and be fixed on the lower section of housing 7a, amesdial 2a is positioned at the top of transmission lever 1a.
When measuring, directly expansion link 1a is hooked on the cylindrical of workpiece to be machined, by bullet
The compressing of spring 8a makes transmission lever 1a be close to workpiece, and workpiece mill is little when, transmission lever 1a is down
Walking, then drive the gauge outfit contact of amesdial 2a, at this moment the pointer on amesdial 2a will be anti-
Mirror concrete data.By this principle, can directly read this work in Grinding Process
Part also remains how many grinding allowances, it is not necessary to workpiece is taken off measurement, solves and generally exists at present
The problem being unable to reach on-line checking.
But, this detection device relies primarily on amesdial and detects, and accuracy of detection is the highest, and
And can not realize automatically detecting and record, and grinding allowance can only be detected, should
Narrower by scope.
Summary of the invention
The circularity that the purpose of the present invention is to propose to a kind of external cylindrical surface grinding fills with Linearity surveying
Put and detection method, it is possible to the circularity of cylinder grinding to foreign round and linearity realize detection automatically,
And improve accuracy of detection, thus improve machining accuracy.
For achieving the above object, one aspect of the present invention provides the circularity of a kind of external cylindrical surface grinding
With linearity testing apparatus, including: the base 1 fixing with the fuselage of grinding machine, be arranged on described
Support 2, pivoted lever 8, displacement detecting sensor 9 and Signal Processing Element on base 1,
One end of described pivoted lever 8 turns away from one end formation of described base 1 with described support 2
Being dynamically connected, the other end of described pivoted lever 8 is provided with described displacement detecting sensor 9, described
The location parameter of the external cylindrical surface of workpiece 11 can be entered by displacement detecting sensor 9 in detection position
Row detection;
Described Signal Processing Element is able to receive that the position ginseng that described displacement detecting sensor 9 detects
Number, and be converted to circularity and the linearity data of described workpiece 11.
Further, also include that position regulator 10, described position regulator 10 set slidably
Put on described pivoted lever 8, it is possible to adjust described displacement detecting sensor 9 relative to described time
Position on bull stick 8 length direction, described displacement detecting sensor 9 is rotatably arranged at described
On position regulator 10, it is possible to adjust the measurement attitude of described displacement detecting sensor 9.
Further, gyroaxis 5, one end of described pivoted lever 8 and described support 2 are also included
One end away from described base 1 is connected by described gyroaxis 5, it is possible to make described pivoted lever 8
Swing in perpendicular or horizontal plane, so that described displacement detecting sensor 9 is adding man-hour
Swing to non-detection position, swing to detect position when detection.
Further, also include that driver part, described driver part are connected with described gyroaxis 5,
Described gyroaxis 5 can be driven to rotate thus drive described pivoted lever 8 to rotate.
Further, also include that limiting component, described limiting component are arranged on described pivoted lever 8
And between described support 2, it is possible to limit the described pivoted lever 8 limit in different rotation directions
Position, to determine detection position and non-detection position.
Further, described limiting component includes: limited block 5, limit switch clockwise 4 and
Limit switch 3 counterclockwise, described limited block 5 is fixed on one end of described pivoted lever 8, described
Limit switch 4 and described limit switch counterclockwise 3 are fixed on described support 2 clockwise, energy
Described displacement detecting sensor 9 is enough made to arrive non-detection position and detection position.
Further, described Signal Processing Element includes: data acquisition module, data analysis mould
Block and parameter feedback module,
Described data acquisition module is able to receive that the position ginseng that described displacement detecting sensor 9 detects
Number;
The location parameter that described displacement detecting sensor 9 can be detected by described data analysis module
It is scaled circularity and the linearity data of described workpiece 11;
Described parameter feedback module can be by the circularity of described workpiece 11 and linearity data feedback
To the control system for processing of described grinding machine, so that described control system for processing is according to feedback result
Adjust machined parameters.
For achieving the above object, another aspect of the present invention provides the circle of a kind of external cylindrical surface grinding
Degree and Linearity surveying method, detection device based on above-described embodiment, including:
Described displacement detecting sensor 9 is made to be positioned at detection position;
The position of the external cylindrical surface of described workpiece 11 is joined by described displacement detecting sensor 9
Number detects, and sends described Signal Processing Element to;
The location parameter described displacement detecting sensor 9 detected by described Signal Processing Element
Be converted to circularity and the linearity data of described workpiece 11.
Further so that the described displacement detecting sensor 9 outside cylinder to described workpiece 11
The step that the location parameter in face carries out detecting specifically includes:
Described workpiece 11 is revolved one-turn so that described displacement detecting sensor 9 detects currently
The radial position parameter of one week in cross section;
Described workpiece 11 is adjusted to some diverse locations along own axes, in position, everywhere
Perform previous step.
Further, by described Signal Processing Element, described displacement detecting sensor 9 is detected
The step of the location parameter circularity and linearity data that are converted to described workpiece 11 include:
Described workpiece 11 is calculated corresponding at each section by described Signal Processing Element
Maximum radial position parameter variations, the circularity corresponding to characterize each cross section;
The circle that each cross section of described workpiece 11 is corresponding is calculated by described Signal Processing Element
The maximum of degree, to characterize the circularity of described workpiece 11;
Obtain the center of circle in some cross sections according to least square fitting, by a series of centers of circle, adopt
Obtaining a space line with least square fitting, a series of centers of circle are apart from described space line
Two times of ultimate range are in order to characterize the linearity of described workpiece 11.
Further, described detection device also includes position regulator 10, described position regulator
10 are slidably arranged on described pivoted lever 8, and described displacement detecting sensor 9 is arranged rotationally
On described position regulator 10, this detection method also includes:
Before processing, described displacement detecting sensor 9 is adjusted relative to described pivoted lever 8 length
Position on direction;
Adjust the measurement attitude of described displacement detecting sensor 9, so that described displacement detecting sensing
Device 9 is in detection position;
The position of the described workpiece 11 before the processing that described displacement detecting sensor 9 is detected
Parameter, stores as detection initial position parameters.
Further, the limiting component of detection device includes: limited block 5, the most spacing open
Pass 4 and limit switch counterclockwise 3, described limited block 5 is fixed on one end of described pivoted lever 8,
Described limit switch clockwise 4 and described limit switch counterclockwise 3 are fixed on described support 2,
Described detection method also includes:
Adding man-hour, described pivoted lever 8 is being turned to described limit switch clockwise 4 correspondence
Non-detection position;
When measuring, described pivoted lever 8 is turned to described limit switch counterclockwise 3 correspondence
Detection position.
Further, after the circularity obtaining described workpiece 11 and linearity data, also wrap
Include: by the circularity of described workpiece 11 with linearity data feedback to the machining control system of described grinding machine
System, so that described control system for processing adjusts machined parameters according to feedback result.
Based on technique scheme, the circularity of the external cylindrical surface grinding of the embodiment of the present invention and straight line
Degree detection device, by displacement detecting sensor in the detection position to excircle of workpiece cylinder, the position
Parameter detects, then by Signal Processing Element location parameter is converted to the circularity of workpiece with
Linearity data, this detection device can be to the circularity of excircle of workpiece cylinder after grinding and linearity
Realize automatic On-machine Test, thus improve detection efficiency;The most also can reduce artificial behaviour as far as possible
Make the detection error introduced, and displacement detecting sensor also can reach higher resolution, this
A little advantages can improve the accuracy of detection of this detection device, thus improves machining accuracy.
Accompanying drawing explanation
Accompanying drawing described herein is used for providing a further understanding of the present invention, constitutes the application
A part, the schematic description and description of the present invention is used for explaining the present invention, not structure
Become inappropriate limitation of the present invention.In the accompanying drawings:
Fig. 1 is the structural representation of the detection device of external cylindrical surface grinding in prior art;
Fig. 2 is a circularity enforcement with linearity testing apparatus of external cylindrical surface grinding of the present invention
The Facad structure schematic diagram of example;
Fig. 3 is the inverse layer structure schematic diagram of embodiment illustrated in fig. 2.
Description of reference numerals
1a-transmission lever;2a-amesdial;3a-expansion link;4a-the first bolt;5a-
Two bolts;6a-prolongs motion block;7a-housing;8a-spring;
1-base;2-support;3-is counterclockwise limit switch;4-limit switch clockwise;
5-gyroaxis;6-limited block;7-motor;8-pivoted lever;9-displacement detecting sensor;
10-position regulator;11-workpiece.
Detailed description of the invention
The present invention described further below.In the following paragraphs, embodiment is defined in more detail
Different aspect.The each side so limited can be with any other a aspect or many aspects
Combination, not can be combined.Especially it is considered to be preferred or favourable appoints
What feature can one or more with other be considered as preferred or favourable feature.
Inventors noted that external cylindrical surface grinding of the prior art detection device accuracy of detection is relatively
Low, main reason is that, this detection device relies primarily on amesdial and detects, when workpiece turns
Time dynamic, operator is needed to read some data by amesdial in one week, then to these data
Compare or calculate, wherein chosen position, read data and compare calculating be all by manually
Carry out, thus can introduce a lot of anthropic factors thus affect final accuracy of detection, and
And detection efficiency is the lowest.It addition, this metering outfit of amesdial only up to reach
The accuracy of detection of 0.001mm, the process equipment of precision this for grinding machine, if required up
Higher grinding requirement, then can not be realized higher adding by the restriction of detection equipment precision
Work precision.
The shortcoming existed for detection equipment of the prior art, the invention provides a kind of cylindrical
The circularity of cylinder grinding and linearity testing apparatus, Facad structure schematic diagram as shown in Figure 2 and
Inverse layer structure schematic diagram shown in Fig. 3, including: the base 1 fixing with the fuselage of grinding machine, peace
Support 2, pivoted lever 8, displacement detecting sensor 9 and the Signal Processing Element being contained on base 1,
One end of pivoted lever 8 is rotationally connected away from one end formation of base 1 with support 2, pivoted lever 8
The other end displacement detecting sensor 9 is installed, displacement detecting sensor 9 can be at detecting position
The location parameter putting the external cylindrical surface to workpiece 11 detects;Signal Processing Element is able to receive that
The location parameter of displacement detecting sensor 9 detection, and be converted to circularity and the linearity of workpiece 11
Data.Wherein, can be positioned by pin between base 1 and the fuselage of grinding machine, and adopt
Being fixedly connected with bolt, support 2 is arranged on base 1, is used for supporting detection main part
Point.
The detection device of the present invention is applicable to circularity and the linearity of all non-eccentricity external cylindrical surfaces
On-machine Test.Compared with prior art, displacement detecting sensor can be in detection position to work
Part carries out location parameter detection, then is converted to by the location parameter detected by Signal Processing Element
The circularity of workpiece and linearity data, it is possible to achieve On-machine Test, be also not related to the secondary of workpiece
Clamping, thus detection and the data process of automatization can be realized, it is possible to increase the detection effect of workpiece
Rate.Additionally the present invention is compared with the scheme using amesdial detection, manual operation the mistake introduced
Difference is less, and the minimum resolution of displacement detecting sensor is up to the 0.03% of detection length,
The circular runout detecting a length of workpiece of workpiece in the present invention, maximum not over 0.05mm,
The resolution understanding displacement detecting sensor is less than 0.000015mm, than the measurement of amesdial
Precision is high.By analyzing, the circularity of the external cylindrical surface grinding of the present invention and linearity testing apparatus
The accuracy of detection of workpiece can be improved, thus improve machining accuracy further.
Further, this detection device also includes position regulator 10, and position regulator 10 is sliding
It is arranged on pivoted lever 8, it is possible to adjust displacement detecting sensor 9 relative to pivoted lever 8 dynamicly
Position on length direction, displacement detecting sensor 9 is rotatably arranged at position regulator 10
On, it is possible to adjust the measurement attitude of displacement detecting sensor 9.
Specifically, pivoted lever 8 can be designed as the rod-like structure that cross section is rectangle, position adjustment
The rectangular through slot that size is suitable with pivoted lever 8 is offered, by position regulator 10 on device 10
Be set on pivoted lever 8, can by position regulator 10 drive displacement detecting sensor 9 along
The length direction of pivoted lever 8 is adjusted.Displacement detecting sensor 9 and position regulator 10
Can fix by the way of hinged, displacement detecting sensor 9 can be realized relative to pivoted lever 8
It is adjusted at angle direction.It addition, displacement detecting sensor 9 can also use other structure
Realize position adjustment.
Mentioning in above-described embodiment, one end of pivoted lever 8 and support 2 are away from one end of base 1
Formation is rotationally connected, and the purpose of this design is: when needs carry out grinding, incite somebody to action back
Bull stick 8 turns to non-detection position, and non-detection position is that the main body of detection device does not hinder emery wheel
And the position of workpiece 11;When needs detect, turn to pivoted lever 8 detect position,
The grinding carriage of grinding machine emery wheel to be driven is away from workpiece 11 simultaneously, and detecting position is set to displacement detecting sensing
The position that workpiece 11 can be detected by device 9.This structure can realize Roundness of Workpiece with straight
The On-machine Test of dimension so that non-interference between manufacturing procedure and detection operation, and adjust
Get up the most convenient.
In a kind of specific embodiment, the detection device of the present invention also includes gyroaxis 5, returns
One end of bull stick 8 is connected by gyroaxis 5 away from one end of base 1 with support 2, it is possible to make
Pivoted lever 8 swings in perpendicular or horizontal plane, so that displacement detecting sensor 9 is adding
Man-hour swings to non-detection position, swings to detect position when detection.When gyroaxis 5 level
When arranging, pivoted lever 8 swings in perpendicular, sees the embodiment shown in Fig. 2 and Fig. 3;
When gyroaxis 5 is vertically arranged, pivoted lever 8 swings in horizontal plane.
The swing of pivoted lever 8 can be with manual operation, it is also possible to realize by the way of driving automatically.
Automatically the automaticity that can improve detection further is driven, and for performing batch detection
During task, the position control to displacement detecting sensor 9 is more consistent.Specifically, this detection
Device also includes that driver part, driver part are connected with gyroaxis 5, it is possible to be driven back to rotating shaft 5
Rotate thus drive pivoted lever 8 to rotate, driver part can choose motor, motor, oil cylinder and
The elements such as pulley.
In one more excellent embodiment of the present invention, detection device also includes limiting component, spacing
Parts are arranged between pivoted lever 8 and support 2, it is possible to limit pivoted lever 8 in difference rotation side
Extreme position upwards, to determine detection position and non-detection position.
The structure example swung in perpendicular with pivoted lever 8, limiting component includes: spacing
Block 5, limit switch clockwise 4 and limit switch 3 counterclockwise, limited block 5 is fixed on pivoted lever
One end of 8, limit switch 4 clockwise and limit switch counterclockwise 3 be fixed on support 2,
Displacement detecting sensor 9 can be made to arrive non-detection position and detection position.
Preferably, the state that pivoted lever 8 is vertical with base 1 is set as that pivoted lever 8 is clockwise
Rotate extreme position time (i.e. lifting), state parallel with base 1 for pivoted lever 8 is set
Rotate extreme position time (i.e. putting down) for pivoted lever 8 counterclockwise, arrange limit clockwise accordingly
Bit switch 4 and the limit switch counterclockwise 3 particular location on support 2.Referred to herein as limit
Bit switch can choose contact or contactless switch, as long as pivoted lever 8 can be limited
Extreme position in different rotation directions, it is of course also possible to use mechanical limit structure.
In the above-described embodiment, displacement detecting sensor 9 can use connect non-with workpiece 11
The mode touched detects, such as, and laser beam that displacement detecting sensor 9 sends or ultrasonic
The centrage of ripple passes axis of workpiece, utilizes surface of the work to reflect, and then obtains outside workpiece
The location parameter of certain point on the face of cylinder.Displacement detecting sensor 9 obtains location parameter can be for
Signal Processing Element carries out data process, thus obtains the circularity of the external cylindrical surface of workpiece 11 with straight
Dimension data.
In one embodiment, Signal Processing Element includes: data acquisition module, data analysis
Module and parameter feedback module, data acquisition module is able to receive that displacement detecting sensor 9 detects
Location parameter;The location parameter that displacement detecting sensor 9 can be detected by data analysis module
It is scaled circularity and the linearity data of workpiece 11;Parameter feedback module can be by workpiece 11
Circularity and linearity data feedback are to the control system for processing of grinding machine, so that control system for processing
Machined parameters is adjusted according to feedback result.
Wherein, displacement detecting sensor 9 and Signal Processing Element coordinate the circle obtaining workpiece 11
Spending the method with linearity data is: revolved one-turn by workpiece 11 so that displacement detecting sensor
The radial position parameter of one week in 9 detection current cross-section, by data collecting module collected the most also
Preserve the sampled data of a week, characterize the circularity in this cross section with maximum radial variation;Again by workpiece
11 are adjusted to some diverse locations along own axes, the like, it is possible to obtain several cross sections
The respective circularity of sampled data and several cross sections, characterize the circle of workpiece 11 with maximum circularity
Degree.Then obtained the center of circle in some cross sections by least square fitting, by a series of then,
The center of circle, uses method of least square to obtain a space line, and the series center of circle is apart from this space line
Two times of ultimate range are the linearity of workpiece 11.
Displacement detecting sensor 9 and Signal Processing Element with the use of, it is possible to achieve automatization
On-machine Test, reduces the detection error introduced because of manual operation, and can improve detection efficiency.
In the case of performing batch detection task, also can preferably ensure the concordance of testing conditions.
It addition, testing result can also be fed back to digital control processing control system, numerical control by parameter feedback module
Control system for processing adjusts machined parameters by feedback result, thus has only to workpiece is carried out one
Secondary clamping just can complete processing, it is not necessary to repeatedly dismantles, and so can realize detection and processing is adopted
With identical positioning datum, thus improve accuracy of detection, and then improve machining accuracy.
Detection device based on above-described embodiment, present invention also offers a kind of external cylindrical surface grinding
Circularity and Linearity surveying method, including:
Step 101, make displacement detecting sensor 9 be positioned at detection position;
Step 102, the position of the external cylindrical surface of workpiece 11 is joined by displacement detecting sensor 9
Number detects, and sends Signal Processing Element to;
Step 103, position ginseng displacement detecting sensor 9 detected by Signal Processing Element
Number conversion is circularity and the linearity data of workpiece 11.
In a upper embodiment, step 102 make displacement detecting sensor 9 to workpiece 11
The location parameter of external cylindrical surface carry out detection and specifically include:
Step 201, workpiece 11 is revolved one-turn so that displacement detecting sensor 9 detects currently
The radial position parameter of one week in cross section, is so obtained with a cross section inner circle of workpiece 11
The location parameter of each point on week;
Step 202, workpiece 11 is adjusted to some diverse locations along own axes, in everywhere
Position performs step 201.
Owing to workpiece 11 is by after holder, workpiece 11 can only be carried out along own axes direction
Move and around own axes revolution the two motion, the adjustment of axial location can be by grinding machine
Workbench drives workpiece to realize.The location parameter of different cross section is detected, is to enable
Enough obtain the relatively poor cross section of circularity and represent the circularity of workpiece 11, and for obtain
The linearity data of workpiece 11.The position ginseng that displacement detecting sensor 9 detected is explained below
Number is scaled the concrete grammar of external cylindrical surface circularity and linearity data.
Specifically, displacement detecting sensor 9 is detected by step 103 by Signal Processing Element
Location parameter be converted to the circularity of workpiece 11 and specifically include with linearity data:
Step 301, calculated workpiece 11 by Signal Processing Element corresponding at each section
Maximum radial position parameter variations, the circularity corresponding to characterize each cross section;
Step 302, calculated the circle that each cross section of workpiece 11 is corresponding by Signal Processing Element
The maximum of degree, to characterize the circularity of workpiece 11;
Step 303, according to least square fitting obtain some cross sections the center of circle, by one be
The row center of circle, uses least square fitting to obtain a space line, and a series of centers of circle distance is empty
Between two times of straight line ultimate range in order to characterize the linearity of workpiece 11.
In the embodiment that Fig. 2 with Fig. 3 is corresponding, detection device also includes position regulator 10,
Position regulator 10 is slidably arranged on pivoted lever 8, and displacement detecting sensor 9 sets rotationally
Putting on position regulator 10, this detection method also includes:
Step 100a, before processing, adjusts displacement detecting sensor 9 relative to pivoted lever 8
Position on length direction;
Step 100b, the measurement attitude of adjustment displacement detecting sensor 9, so that displacement detecting
Sensor 9 is in detection position;
The position of the workpiece 11 before step 100c, the processing that displacement detecting sensor 9 is detected
Put parameter, store as detection initial position parameters.
By step 100a in this embodiment~100c, can be before processing by displacement detecting
Sensor 9 is adjusted to the position at workpiece 11 place, and using this position as initial position parameters
It is saved in Signal Processing Element, in order to need workpiece 11 is carried out after grinding completes
During detection, directly workpiece 11 is adjusted according to the initial position parameters preserved in Signal Processing Element
Put in place, need not again adjust the displacement detecting sensor 9 position relative to workpiece 11.This
Detection preparation is placed on execution before processing part by kind of embodiment, can shorten the detection time from
And improve processing and detection efficiency.
Further, in detection device uses the embodiment of limiting component, limiting component includes:
Limited block 5, limit switch clockwise 4 and limit switch 3 counterclockwise, limited block 5 is fixed on back
One end of bull stick 8, limit switch 4 clockwise and limit switch counterclockwise 3 are fixed on support 2
On, the detection method of the present invention also includes:
Adding man-hour, pivoted lever 8 is being turned to the non-detecting position of limit switch 4 correspondence clockwise
Put;
When measuring, pivoted lever 8 is turned to the detection position of limit switch 3 correspondence counterclockwise.
For the set-up procedure before processing, provide the illustration of several different situations here.Its
One, detection device is provided with limit assembly, before processing, makes pivoted lever 8 swing to inverse time stylus
After extreme position, it is not necessary to by position regulator 10 adjust displacement detecting sensor 9 position and
Measure attitude, the most just arrive detection position, the most just can obtain detection initial position parameters.
Its two, detection device is provided with limit assembly, but it is inverse before processing, pivoted lever 8 to be swung to
After hour hands extreme position, still need to be adjusted the position of displacement detecting sensor 9 by position regulator 10
Put and measure attitude.Its three, detection device in be not provided with limit assembly, need by servo electricity
Machines etc. control pivoted lever 8 with the driver part that position is fed back and swing to correct position, then pass through
Position regulator 10 adjusts the position of displacement detecting sensor 9 and measures attitude.
In yet another embodiment of the present invention, obtaining circularity and the straight line number of degrees of workpiece 11
According to afterwards, this detection method also includes: give mill by the circularity of workpiece 11 with linearity data feedback
The control system for processing of bed, so that control system for processing adjusts machined parameters according to feedback result.
In this embodiment, testing result directly can provide for the course of processing and instruct, by once filling
Folder can complete processing, greatly increases processing and detection efficiency, and the carrying of accuracy of detection
The high qualification rate that also can improve part processing.
Each step introduced in the above embodiment of the present invention can be according to actually detected need
Ask and select, it is also possible to the order between each step is adjusted, these embodiments
Combination is all at the row of protection scope of the present invention.
Apparent understanding is had, below with certain in order to the present invention being detected device and detection method
As a example by the grinding of hydraulic cylinder piston rod, to using detection device pair corresponding for Fig. 2 with Fig. 3
The method that piston rod carries out detecting is described in detail.
Before processing, the pivoted lever 8 of detection device is lowered into limit switch 3 counterclockwise corresponding
Position, and according to the size of hydraulic cylinder piston rod (i.e. workpiece 11), adjust displacement detecting and pass
Sensor 9 is along the position of pivoted lever 8 length direction and measures attitude, thus arrives suitably detection
Position, and this detection position is saved in Signal Processing Element as initial position parameters.
When grinding, pivoted lever 8 is raised up to the position of limit switch 4 correspondence clockwise,
Detection device does not interferes with normal grinding.
After grinding terminates, when needing to detect, emery wheel is driven to return (i.e. the grinding carriage of grinding machine
Away from workpiece), motor 7 is driven back to rotating shaft 5 makes pivoted lever 8 right from limit switch 4 clockwise
The position answered turns to the position of limit switch 3 correspondence counterclockwise, when limited block 6 arrives the inverse time
During the position of pin limit switch 3 correspondence, motor 7 stops operating.Then, by the work of grinding machine
Hydraulic cylinder piston rod is adjusted and is adjusted in place according to initial position parameters by station, at this moment displacement detecting
Sensor 9 the most just reaches measurement position.The position adjustment the two step of pivoted lever 8 and workpiece
Suddenly can mutual reversed order.
Then, hydraulic cylinder piston rod is revolved one-turn so that displacement detecting sensor 9 detection is worked as
The radial position parameter of one week in starting section, simultaneously by data collecting module collected and preserve one week
Sampled data, with maximum radial variation characterize this cross section circularity;Again by workbench by liquid
Pressure cylinder piston bar is adjusted to some diverse locations along own axes, the like, it is possible to obtain if
The respective circularity of sampled data and several cross sections in dry cross section, characterizes hydraulic pressure with maximum circularity
The circularity of cylinder piston rod.Then, then obtained the center of circle in some cross sections by least square fitting,
By a series of centers of circle, method of least square is used to obtain a space line, series center of circle distance
Two times of this space line ultimate range are the linearity of hydraulic cylinder piston rod.Above-mentioned basis
The detection parameter of displacement detecting sensor 9 calculates the operation of circularity and linearity by data analysis
Module performs.
Above-mentioned calculated circularity and linearity data can be supplied to mill by parameter feedback module
The digital control processing control system of bed, thus adjust machined parameters according to testing result, need processing
Time, then be driven back to rotating shaft 5 by motor 7 pivoted lever is lifted, circulate with this.So logical
Cross clamped one time and can complete processing, greatly increase processing and detection efficiency, and detect
The raising of precision also can improve the precision of part processing.
Circularity and Linearity surveying to a kind of external cylindrical surface grinding provided by the present invention above
Device and detection method are described in detail.Specific embodiment used herein is to this
Bright principle and embodiment are set forth, and the explanation of above example is only intended to help reason
Solve method and the core concept thereof of the present invention.It should be pointed out that, the common skill for the art
For art personnel, under the premise without departing from the principles of the invention, it is also possible to if the present invention is carried out
Dry improvement and modification, these improve and modify in the protection domain also falling into the claims in the present invention.
Claims (13)
1. the circularity of an external cylindrical surface grinding and linearity testing apparatus, it is characterised in that
Including: the base (1) fixing with the fuselage of grinding machine, be arranged on described base (1)
Frame (2), pivoted lever (8), displacement detecting sensor (9) and Signal Processing Element,
One end of described pivoted lever (8) and described support (2) are away from described base (1)
One end is formed and is rotationally connected, and the other end of described pivoted lever (8) is provided with described displacement detecting and passes
Sensor (9), described displacement detecting sensor (9) can be in detection position to workpiece (11)
The location parameter of external cylindrical surface detect;
Described Signal Processing Element is able to receive that the position that described displacement detecting sensor (9) detects
Put parameter, and be converted to circularity and the linearity data of described workpiece (11).
The circularity of external cylindrical surface grinding the most according to claim 1 fills with Linearity surveying
Put, it is characterised in that also include position regulator (10), described position regulator (10)
It is slidably arranged on described pivoted lever (8), it is possible to adjust described displacement detecting sensor (9)
Relative to the position on described pivoted lever (8) length direction, described displacement detecting sensor (9)
It is rotatably arranged on described position regulator (10), it is possible to adjust described displacement detecting sensing
The measurement attitude of device (9).
The circularity of external cylindrical surface grinding the most according to claim 2 fills with Linearity surveying
Put, it is characterised in that also include gyroaxis (5), one end of described pivoted lever (8) and institute
State support (2) one end away from described base (1) by described gyroaxis (5) connection, energy
Described pivoted lever (8) is enough made to swing in perpendicular or horizontal plane, so that described displacement inspection
Survey sensor (9) and swing to non-detection position man-hour adding, swing to detect position when detection.
The circularity of external cylindrical surface grinding the most according to claim 3 fills with Linearity surveying
Put, it is characterised in that also include driver part, described driver part and described gyroaxis (5)
Connect, it is possible to drive described gyroaxis (5) to rotate thus drive described pivoted lever (8) to rotate.
The circularity of external cylindrical surface grinding the most according to claim 1 fills with Linearity surveying
Put, it is characterised in that also include that limiting component, described limiting component are arranged on described pivoted lever
(8) and between described support (2), it is possible to limit described pivoted lever (8) in difference rotation side
Extreme position upwards, to determine detection position and non-detection position.
The circularity of external cylindrical surface grinding the most according to claim 5 fills with Linearity surveying
Put, it is characterised in that described limiting component includes: limited block (5), limit switch clockwise
(4) and limit switch counterclockwise (3), described limited block (5) is fixed on described pivoted lever (8)
One end, described limit switch clockwise (4) and described limit switch counterclockwise (3) are fixed
On described support (2), it is possible to make described displacement detecting sensor (9) arrive non-detecting position
Put and detect position.
The circularity of external cylindrical surface grinding the most according to claim 1 fills with Linearity surveying
Put, it is characterised in that described Signal Processing Element includes: data acquisition module, data analysis
Module and parameter feedback module,
Described data acquisition module is able to receive that the position that described displacement detecting sensor (9) detects
Put parameter;
The position that described displacement detecting sensor (9) can be detected by described data analysis module
Parameter conversion is circularity and the linearity data of described workpiece (11);
Described parameter feedback module can be by anti-with linearity data for the circularity of described workpiece (11)
Feed the control system for processing of described grinding machine, so that described control system for processing is according to feedback knot
Fruit adjusts machined parameters.
8. the circularity of external cylindrical surface grinding and a Linearity surveying method, based on claim
1~7 arbitrary described detection devices, it is characterised in that including:
Described displacement detecting sensor (9) is made to be positioned at detection position;
Make described displacement detecting sensor (9) to the external cylindrical surface of described workpiece (11)
Location parameter detects, and sends described Signal Processing Element to;
The position described displacement detecting sensor (9) detected by described Signal Processing Element
Parameters Transformation is circularity and the linearity data of described workpiece (11).
The circularity of external cylindrical surface grinding the most according to claim 8 and Linearity surveying side
Method, it is characterised in that make described displacement detecting sensor (9) to described workpiece (11)
The step that the location parameter of external cylindrical surface carries out detecting specifically includes:
Described workpiece (11) is revolved one-turn so that described displacement detecting sensor (9) is examined
The radial position parameter of one week in survey current cross-section;
Described workpiece (11) is adjusted to some diverse locations along own axes, in position, everywhere
Put execution previous step.
The circularity of external cylindrical surface grinding the most according to claim 9 and Linearity surveying side
Method, it is characterised in that by described Signal Processing Element by described displacement detecting sensor (9)
The location parameter of detection is converted to the circularity of described workpiece (11) and the step bag of linearity data
Include:
Described workpiece (11) is calculated corresponding at each section by described Signal Processing Element
Maximum radial position parameter variations, the circularity corresponding to characterize each cross section;
The each cross section being calculated described workpiece (11) by described Signal Processing Element is corresponding
The maximum of circularity, to characterize the circularity of described workpiece (11);
Obtain the center of circle in some cross sections according to least square fitting, by a series of centers of circle, adopt
Obtaining a space line with least square fitting, a series of centers of circle are apart from described space line
Two times of ultimate range are in order to characterize the linearity of described workpiece (11).
The circularity of 11. external cylindrical surface grindings according to claim 8 and Linearity surveying side
Method, it is characterised in that described detection device also includes position regulator (10), described position
Adjustor (10) is slidably arranged on described pivoted lever (8), described displacement detecting sensor
(9) being rotatably arranged on described position regulator (10), this detection method also includes:
Before processing, described displacement detecting sensor (9) is adjusted relative to described pivoted lever (8)
Position on length direction;
Adjust the measurement attitude of described displacement detecting sensor (9), so that described displacement detecting
Sensor (9) is in detection position;
Described workpiece (11) before the processing that described displacement detecting sensor (9) is detected
Location parameter, as detection initial position parameters store.
The circularity of 12. external cylindrical surface grindings according to claim 8 and Linearity surveying side
Method, it is characterised in that the limiting component of detection device includes: limited block (5), limit clockwise
Bit switch (4) and limit switch counterclockwise (3), described limited block (5) is fixed on described returning
One end of bull stick (8), described limit switch clockwise (4) and described limit switch counterclockwise
(3) being fixed on described support (2), described detection method also includes:
Adding man-hour, described pivoted lever (8) is being turned to described limit switch clockwise (4)
Corresponding non-detection position;
When measuring, described pivoted lever (8) is turned to described limit switch counterclockwise (3)
Corresponding detection position.
The circularity of 13. external cylindrical surface grindings according to claim 10 and Linearity surveying
Method, it is characterised in that after the circularity obtaining described workpiece (11) and linearity data,
Also include: by the circularity of described workpiece (11) and linearity data feedback adding to described grinding machine
Work control system, so that described control system for processing adjusts machined parameters according to feedback result.
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CN110631541A (en) * | 2019-10-31 | 2019-12-31 | 湖北民族大学 | Steel product shape measurement linearity detection and correction method |
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CN110715596A (en) * | 2019-11-08 | 2020-01-21 | 中国科学院长春光学精密机械与物理研究所 | Roller roundness detection device |
CN110715596B (en) * | 2019-11-08 | 2020-09-01 | 中国科学院长春光学精密机械与物理研究所 | Roller roundness detection device |
CN114986271A (en) * | 2022-06-29 | 2022-09-02 | 中国航发动力股份有限公司 | Eccentric structure body grinding positioning tool and process thereof |
CN114986271B (en) * | 2022-06-29 | 2023-09-26 | 中国航发动力股份有限公司 | Eccentric structure grinding positioning tool and process thereof |
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