CN103063421B - Automatic comprehensive detection device and detection method for inclined ring spring property - Google Patents
Automatic comprehensive detection device and detection method for inclined ring spring property Download PDFInfo
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- CN103063421B CN103063421B CN201210555772.2A CN201210555772A CN103063421B CN 103063421 B CN103063421 B CN 103063421B CN 201210555772 A CN201210555772 A CN 201210555772A CN 103063421 B CN103063421 B CN 103063421B
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Abstract
The invention discloses an automatic comprehensive detection device for inclined ring spring property. A servo motor is arranged on a fixed support on a base. The upper end of a precise ball screw is upward and is in transmitted connection with an output shaft of the servo motor. The lower end of the precise ball screw is arranged in a supporting seat on the base. A nut is sleeved on the precise ball screw. The nut is fixedly connected with a workbench. A grating scale is vertically arranged along an outer laterally upright face of the base. A number reading head of the grating scale is fixedly connected with the workbench through a connecting board. A spring clamp is fixedly connected with a suspension arm of the workbench. A diameter expanding block is arranged below the spring clamp. The lower end of the diameter expanding block is connected with a tension and pressure sensor. The invention further discloses an automatic comprehensive detection method for the inclined ring spring property. According to the automatic comprehensive detection device and the detection method for the inclined ring spring property, detection of the diameter of an inner ring, rigidity, minimum inner friction force and maximum inner friction force of an inclined ring spring can be achieved, work efficiency is high and accuracy is good.
Description
Technical field
The invention belongs to plant equipment detection technique field, relate to a kind of robotization comprehensive detection device for canted coil spring performance, the invention still further relates to a kind of robotization method for comprehensive detection for canted coil spring performance.
Background technology
Canted coil spring can provide and be similar to constant power within the scope of the working deformation of 5%-35%, just because of the design feature with this uniqueness, make canted coil spring no matter be as obturator, shielding part, union piece or electric parts, all show premium properties more more than ordinary straight coil spring.Canted coil spring is widely used in the various fields such as Aero-Space, electric system, sealing system.Therefore, for the research of the performances such as canted coil spring rigidity, there is very strong theory value and practical value.
The quality of canted coil spring performance, can produce vital impact to its effect, and accurate detection method and device are the essential condition ensureing product quality.High-quality canted coil spring is the core part of primary cut-out, and the internal friction of canted coil spring fingertip is one of important parameter of pole circuit turn-on or disconnection.The size of canted coil spring internal friction affects divide-shut brake speed and fault tolerance, if friction force size does not have up to standard, the mechanical property of isolating switch will be made not meet the demands, and likely cause loop circuit bigger than normal, affect the temperature rise of whole isolating switch.Therefore, be necessary that a canted coil spring inner ring friction force is limited in a rational scope.
At present, to the detection mode of canted coil spring rigidity, general employing lever spring Tensile or Compressive Loading testing machine or employing condenser type pull pressure sensor, coordinate suitable amplification display electronic device to carry out load detection, on the basis that load detects, measure the characteristic line of spring again, then analyze.The deficiency such as these two kinds of detection mode ubiquity accuracy of detection are low, troublesome poeration, calculating are loaded down with trivial details, is not especially suitable for the detection to some special shape springs such as canted coil springs.To the detection of canted coil spring internal friction, inner ring diameter, lack special checkout equipment especially, lack high-precision automatic detection device.
Summary of the invention
The object of this invention is to provide a kind of robotization comprehensive detection device for canted coil spring performance, to solve in prior art in the comprehensive detection process of canted coil spring rigidity, internal friction, inner ring diameter, lack the problem of high-precision automatic detection device.
Another object of the present invention is to provide a kind of robotization method for comprehensive detection for canted coil spring performance, solves that ubiquity accuracy of detection in prior art is low, problem that troublesome poeration, calculating are loaded down with trivial details
The technical solution adopted in the present invention is, a kind of robotization comprehensive detection device for canted coil spring performance, comprises servomotor, gear train, testing agency and worktable,
Servomotor is arranged in the fixed support on base;
Gear train comprises precision ball screw and screw, precision ball screw upper end is upwards in transmission connection with the output shaft of servomotor, precision ball screw lower end is arranged in the supporting seat on base, precision ball screw is set with screw, screw is installed with worktable, the cantilever of worktable is fixedly connected with spring perch;
Testing agency comprises grating scale, expanding piece and pull pressure sensor, and grating scale is vertically arranged along the outer side elevation of base, and the read head of grating scale is fixedly connected with worktable by web joint; The below of spring perch is provided with expanding piece, and the axial line of expanding piece that axial line and the below of spring perch are arranged overlaps, and the lower end of expanding piece is connected with pull pressure sensor by axis rod, and pull pressure sensor is arranged on base.
Another technical scheme of the present invention is, a kind of robotization method for comprehensive detection for canted coil spring performance, utilizes above-mentioned device, operate according to following steps:
Step 1, canted coil spring to be detected is installed in spring perch, gives table set default initial position in advance, carry out following setting according to the differing heights position on expanding piece of cylindrical simultaneously:
H
0the distance of default initial position to the epimere 5% deformation plance starting point of expanding piece;
H
1the distance of default initial position to the 35% deformation plance starting point of expanding piece;
H
2the distance of default initial position to the hypomere 5% deformation plance starting point of expanding piece;
H
ethe length of 35% deformation plance of expanding piece and the length of expanding piece of two sections 5% deformation plance;
H
1default initial position to the distance of canted coil spring and expanding piece of epimere First Transition taper-face contact point;
H
2default initial position to the distance of canted coil spring and expanding piece of hypomere the 4th transition conical surface dispersal point;
The inner ring diameter of step 2, detection canted coil spring
Pass into electric current to canted coil spring, start servomotor, driven by servomotor worktable moves down,
Worktable declines from default initial position, and simultaneously read head starts to record displacement, and when canted coil spring and expanding piece of First Transition taper-face contact, expanding piece conducts electricity, and now the difference of the data recorded of read head and default initial position height is h
1,
Worktable continues to decline, and when canted coil spring and expanding piece of the 4th transition conical surface depart from, expanding piece of power-off, now the difference of the data recorded of read head and default initial position height is h
2;
When canted coil spring and the expanding piece of First Transition conical surface come in contact, because contact point is the point of contact of canted coil spring and the expanding piece of conical surface, the inner ring diameter according to tested canted coil spring can obtain h with calculating point of contact coordinate
1the theoretical value h of value
1, therefore, by the actual h detected
1value and theoretical h
1value compares, and can determine that whether the inner ring diameter of canted coil spring is qualified;
Step 3, the rigidity detecting canted coil spring and minimum, maximum internal friction
Control worktable declines,
When canted coil spring passes through m1=H
0-h
1section moves, and the output valve of read head and pull pressure sensor, by recording canted coil spring respectively, 5% displacement of being out of shape and pressure parameter occurs;
At the H of first from top to bottom
esegment distance, pull pressure sensor can measure internal friction when 5% deformation state occurs canted coil spring;
When canted coil spring passes through m2=H
1-H
0-H
esection moves, and the output valve of read head and pull pressure sensor, by recording canted coil spring respectively, displacement from 5% to 35% deformation state and pressure parameter occurs;
At second H
esegment distance, pull pressure sensor can measure the internal friction of canted coil spring when generation 35% deformation state;
When canted coil spring passes through m3=H
2-H
1-H
esection moves, and the output valve of read head and pull pressure sensor, by recording canted coil spring respectively, displacement from 35% to 5% deformation state and pressure parameter occurs;
At the 3rd H
esegment distance, pull pressure sensor can measure internal friction when 5% deformation state occurs spring;
When canted coil spring passes through m4=h
2-H
2-H
esection moves, and the output valve of read head and pull pressure sensor to be returned to displacement and the pressure parameter of original state by 5% deformation state by recording canted coil spring respectively;
In the whole decline process of worktable, getting time step is Δ t, records canted coil spring respectively through the displacement of m1, m2, m3, m4 segment distance of expanding piece and pressure parameter, then can calculate the rigidity of canted coil spring and draw out stiffness curve, H
ethe pull pressure sensor that is displaced through of section measures minimum, maximum internal friction in canted coil spring working range.
The invention has the beneficial effects as follows, by default worktable initial position, grating scale, pull pressure sensor and expanding piece are effectively combined, realize detecting canted coil spring rigidity, inner ring diameter, minimum and maximum internal friction simultaneously.1) parameter value that the displacement of canted coil spring and pressure change can be detected in real time accurately, the method of being averaged by forward and inverse two-way detection reduces error, the displacement of canted coil spring--pressure curve is drawn accurately simple, truly can calculate the rigidity of canted coil spring easily.2) minimum, the maximum internal friction in canted coil spring working range can accurately be detected.3) inner ring diameter of canted coil spring can be detected quickly and easily.Compact conformation, easy to operate, the multifrequency nature that detects canted coil spring by one-time detection and have higher accuracy of detection and testing result intuitively, for research and the processing and manufacturing of evaluating canted coil spring mechanical property and canted coil spring provide technical support.
Accompanying drawing explanation
Fig. 1 is the structural representation of the present invention for the robotization comprehensive detection device of canted coil spring performance;
Fig. 2 is the principle of work schematic diagram of the present invention for the robotization method for comprehensive detection of canted coil spring performance.
In figure, 1. servomotor, 2. precision ball screw, 3. read head, 4. grating scale, 5. base, 6. screw, 7. worktable, 8. spring perch, 9. canted coil spring, 10. expanding piece, 11. pull pressure sensor.
Embodiment
As shown in Figure 1, the robotization comprehensive detection device for canted coil spring performance of the present invention, its structure is, comprises servomotor 1, gear train, testing agency and worktable 7,
Servomotor 1 is arranged in the fixed support on base 5;
Gear train comprises precision ball screw 2 and screw 6, precision ball screw 2 upper end is upwards in transmission connection with the output shaft of servomotor 1, precision ball screw 2 lower end is arranged in the supporting seat on base 5, precision ball screw 2 is set with screw 6, screw 6 is installed with worktable 7, the cantilever of worktable 7 is fixedly connected with spring perch 8;
Testing agency comprises grating scale 4, expanding piece 10 and pull pressure sensor 11, and grating scale 4 is vertically arranged along the outer side elevation of base 5, and the read head 3 of grating scale 4 is fixedly connected with worktable 7 by web joint; The below of spring perch 8 is provided with expanding piece 10, the axial line of expanding piece 10 that axial line and the below of spring perch 8 are arranged overlaps, the lower end of expanding piece 10 is connected with pull pressure sensor 11 by axis rod, pull pressure sensor 11 is arranged on base 5, for fixing canted coil spring 9 to be detected in spring perch 8.
Forward and backward corresponding rising or the decline controlling worktable 7 respectively of servomotor 1, namely servomotor 1 drives precision ball screw 2 to rotate, the forward and backward of precision ball screw 2, controls screw 6 and drives worktable 7 to carry out rising or descending motion.
With reference to Fig. 2, the structure of described expanding piece 10 is, on the outer circumference surface of expanding piece 10, be disposed with the First Transition conical surface, 5% deformation plance, the second transition conical surface, 35% deformation plance, the 3rd transition conical surface, another 5% deformation plance, the 4th transition conical surface from top to bottom, the First Transition conical surface is wherein consistent with the 4th transition conical degree of conical surface and symmetrical up and down, and the second transition conical surface is consistent with the 3rd transition conical degree of conical surface and symmetrical up and down.
The course of work of pick-up unit of the present invention is, arranges a default initial position as benchmark in advance worktable 7, is energized to canted coil spring 9, starts servomotor 1 simultaneously and drives worktable 7 to start to decline.When First Transition taper-face contact with expanding piece of 10 epimeres of canted coil spring 9, expanding piece 10 conducts electricity, and read head 3 records the initial position that canted coil spring 9 deforms.Because spring perch 8 defines the diameter of canted coil spring 9 outer ring, the difference of the initial position that the canted coil spring 9 recorded by read head 3 is deformed and default initial position and the tapering of expanding piece 10, can calculate the inner ring diameter of canted coil spring 9.Worktable 7 continues to decline, and expanding piece 10 enters in canted coil spring 9, and canted coil spring 9 deforms, and read head 3 and pull pressure sensor 11 record detected parameters.Expanding piece of 10 power-off when canted coil spring 9 departs from the 4th transition conical surface of expanding piece of 10 hypomeres, the last position that the spring that read head 3 records canted coil spring 9 restPoses.
Robotization method for comprehensive detection for canted coil spring performance of the present invention, utilizes above-mentioned device, specifically implements according to following steps:
Step 1, as shown in Figure 2, canted coil spring 9 to be detected is installed in spring perch 8, sets a default initial position (as base plane) in advance worktable 7, carry out following setting according to the differing heights position on expanding piece of 10 cylindricals simultaneously:
H
0the distance of default initial position to the epimere 5% deformation plance starting point of expanding piece 10;
H
1the distance of default initial position to the 35% deformation plance starting point of expanding piece 10;
H
2the distance of default initial position to the hypomere 5% deformation plance starting point of expanding piece 10;
H
ethe length of 35% deformation plance of expanding piece 10 and the length of expanding piece of 10 two sections 5% deformation plances;
H
1default initial position to the distance of canted coil spring 9 with expanding piece of 10 epimere First Transition taper-face contact points;
H
2default initial position to the distance of canted coil spring 9 with expanding piece of 10 hypomeres the 4th transition conical surface dispersal point;
The inner ring diameter of step 2, detection canted coil spring 9
Pass into electric current to canted coil spring 9, (this electric current belongs to Weak current, when contacting with expanding piece, can detect that expanding piece conducts electricity just, does not describe in detail at this), start servomotor 1, servomotor 1 drives worktable 7 to move down,
Worktable 7 declines from default initial position, and simultaneously read head 3 starts to record displacement, and when canted coil spring 9 and expanding piece of 10 First Transition taper-face contact, expanding piece 10 conducts electricity, and now the difference of the data recorded of read head 3 and default initial position height is h
1,
Worktable 7 continues to decline, and when canted coil spring 9 departs from expanding piece 10 the 4th transition conical surface, expanding piece of 10 power-off, now the difference of the data recorded of read head 3 and default initial position height is h
2;
When canted coil spring 9 comes in contact with the expanding piece of 10 First Transition conical surfaces, because contact point is the point of contact of canted coil spring 9 and expanding piece of 10 conical surfaces, the inner ring diameter according to tested canted coil spring 9 can obtain h with calculating point of contact coordinate
1the theoretical value h of value
1, therefore, by the actual h detected
1value and theoretical h
1value compares, and can determine that whether the inner ring diameter of canted coil spring 9 is qualified;
Step 3, the rigidity detecting canted coil spring 9 and minimum, maximum internal friction
Control worktable 7 to decline,
When canted coil spring 9 passes through m1=H
0-h
1section moves, displacement and the pressure parameter of 5% distortion is there is in the output valve of read head 3 and pull pressure sensor 11 by recording canted coil spring 9 respectively, circular is 201110398609.5 with reference to the patent No., and denomination of invention is " a kind of measurement mechanism of canted coil spring rigidity and measuring method ";
At the H of first from top to bottom
esegment distance, pull pressure sensor 11 can measure internal friction when 5% deformation state occurs canted coil spring 9;
When canted coil spring 9 passes through m2=H
1-H
0-H
esection moves, and the output valve of read head 3 and pull pressure sensor 11, by recording canted coil spring 9 respectively, displacement from 5% to 35% deformation state and pressure parameter occurs;
At second H
esegment distance, pull pressure sensor 11 can measure the internal friction of canted coil spring 9 when generation 35% deformation state;
When canted coil spring 9 passes through m3=H
2-H
1-H
esection moves, and the output valve of read head 3 and pull pressure sensor 11, by recording canted coil spring 9 respectively, displacement from 35% to 5% deformation state and pressure parameter occurs;
At the 3rd H
esegment distance, pull pressure sensor 11 can measure internal friction when 5% deformation state occurs spring;
When canted coil spring 9 passes through m4=h
2-H
2-H
esection moves, and the output valve of read head 3 and pull pressure sensor 11 to be returned to displacement and the pressure parameter of original state by 5% deformation state by recording canted coil spring 9 respectively;
In the whole decline process of worktable 7, getting time step is Δ t, records canted coil spring 9 respectively through the displacement of m1, m2, m3, m4 segment distance of expanding piece 10 and pressure parameter, then can calculate the rigidity of canted coil spring 9 and draw out stiffness curve, H
ethe pull pressure sensor 11 that is displaced through of section measures minimum, maximum internal friction in canted coil spring working range.
Step 4, worktable 7 drop to lower than h from default initial position
2certain position be that forward detects, then worktable 7 rises to default initial position is again reverse detection, and once complete testing process comprises forward and detects and once reverse detection;
According to step 2, order that step 3 is contrary, move up worktable 7, obtains the parameter of each location status successively, the mean value getting forward and inverse two-way detected parameters as final detection result, to reach the object reducing metrical error as far as possible.
Devices and methods therefor of the present invention, can realize simultaneously to the detection of canted coil spring inner ring diameter, rigidity, minimum and maximum internal friction, work efficiency is high, and accuracy is good.
Claims (3)
1. for a robotization comprehensive detection device for canted coil spring performance, it is characterized in that: comprise servomotor (1), gear train, testing agency and worktable (7),
Described servomotor (1) is arranged in the fixed support on base (5);
Described gear train comprises precision ball screw (2) and screw (6), precision ball screw (2) upper end is upwards in transmission connection with the output shaft of servomotor (1), precision ball screw (2) lower end is arranged in the supporting seat on base (5), precision ball screw (2) is set with screw (6), screw (6) is installed with worktable (7), the cantilever of worktable (7) is fixedly connected with spring perch (8);
Described testing agency comprises grating scale (4), expanding piece (10) and pull pressure sensor (11), grating scale (4) is vertically arranged along the outer side elevation of base (5), and the read head (3) of grating scale (4) is fixedly connected with worktable (7) by web joint; The below of spring perch (8) is provided with expanding piece (10), the axial line of expanding piece (10) that axial line and the below of spring perch (8) are arranged overlaps, the lower end of expanding piece (10) is connected with pull pressure sensor (11) by axis rod, and pull pressure sensor (11) is arranged on base (5);
The structure of described expanding piece (10) is, on outer circumference surface, be disposed with the First Transition conical surface, 5% deformation plance, the second transition conical surface, 35% deformation plance, the 3rd transition conical surface, another 5% deformation plance, the 4th transition conical surface from top to bottom, the First Transition conical surface is wherein consistent with the 4th transition conical degree of conical surface and symmetrical up and down, and the second transition conical surface is consistent with the 3rd transition conical degree of conical surface and symmetrical up and down.
2. for a robotization method for comprehensive detection for canted coil spring performance, it is characterized in that: utilize the robotization comprehensive detection device for canted coil spring performance described in claim 1, operate according to following steps:
Step 1, the canted coil spring (9) that installation is to be detected in spring perch (8), give worktable (7) setting a default initial position in advance, carry out following setting according to the differing heights position on expanding piece of (10) cylindrical simultaneously:
H
0the distance of default initial position to the epimere 5% deformation plance starting point of expanding piece (10);
H
1the distance of default initial position to the 35% deformation plance starting point of expanding piece (10);
H
2the distance of default initial position to the hypomere 5% deformation plance starting point of expanding piece (10);
H
ethe length of 35% deformation plance of expanding piece (10) and the length of expanding piece of (10) two sections 5% deformation plance;
H
1default initial position to the distance of canted coil spring (9) with expanding piece of (10) epimere First Transition taper-face contact point;
H
2default initial position to the distance of canted coil spring (9) with expanding piece of (10) hypomere the 4th transition conical surface dispersal point;
The inner ring diameter of step 2, detection canted coil spring (9)
Pass into electric current to canted coil spring (9), start servomotor (1), servomotor (1) drives worktable (7) to move down,
Worktable (7) declines from default initial position, read head (3) starts to record displacement simultaneously, when canted coil spring (9) and expanding piece of (10) First Transition taper-face contact, expanding piece (10) conduct electricity, and now the difference of the data recorded of read head (3) and default initial position height is h
1,
Worktable (7) continues to decline, when canted coil spring (9) departs from expanding piece (10) the 4th transition conical surface, expanding piece of (10) power-off, now the difference of the data recorded of read head (3) and default initial position height is h
2;
When canted coil spring (9) comes in contact with expanding piece of (10) First Transition conical surface, due to the point of contact that contact point is canted coil spring (9) and expanding piece of (10) conical surface, the inner ring diameter according to tested canted coil spring (9) can obtain h with calculating point of contact coordinate
1the theoretical value h ' of value
1, therefore, by the actual h detected
1value and theoretical h '
1value compares, and can determine that whether the inner ring diameter of canted coil spring (9) is qualified;
Step 3, the rigidity detecting canted coil spring (9) and minimum, maximum internal friction
Control worktable (7) to decline,
When canted coil spring (9) passes through m1=H
0-h
1section moves, and the output valve of read head (3) and pull pressure sensor (11), by recording canted coil spring (9) respectively, 5% displacement of being out of shape and pressure parameter occurs;
At the H of first from top to bottom
esegment distance, pull pressure sensor (11) can measure internal friction when 5% deformation state occurs canted coil spring (9);
When canted coil spring (9) passes through m2=H
1-H
0-H
esection moves, and the output valve of read head (3) and pull pressure sensor (11), by recording canted coil spring (9) respectively, displacement from 5% to 35% deformation state and pressure parameter occurs;
At second H
esegment distance, pull pressure sensor (11) can measure the internal friction of canted coil spring (9) when generation 35% deformation state;
When canted coil spring (9) passes through m3=H
2-H
1-H
esection moves, and the output valve of read head (3) and pull pressure sensor (11), by recording canted coil spring (9) respectively, displacement from 35% to 5% deformation state and pressure parameter occurs;
At the 3rd H
esegment distance, pull pressure sensor (11) can measure internal friction when 5% deformation state occurs spring;
When canted coil spring (9) passes through m4=h
2-H
2-H
esection moves, and the output valve of read head (3) and pull pressure sensor (11) to be returned to displacement and the pressure parameter of original state by 5% deformation state by recording canted coil spring (9) respectively;
In the whole decline process of worktable (7), getting time step is Δ t, record canted coil spring (9) respectively through the displacement of m1, m2, m3, m4 segment distance of expanding piece (10) and pressure parameter, then can calculate the rigidity of canted coil spring (9) and draw out stiffness curve, H
ethe pull pressure sensor (11) that is displaced through of section measures minimum, maximum internal friction in canted coil spring working range.
3. the robotization method for comprehensive detection for canted coil spring performance according to claim 2, is characterized in that: also comprise step 4, and worktable (7) drops to lower than h from default initial position
2certain position be that forward detects, then worktable (7) rises to default initial position is again reverse detection, and once complete testing process comprises forward and detects and once reverse detection;
Reverse testing process is, the worktable that moves up (7), first according to the order contrary with step 3, then according to the order contrary with step 2, obtains the parameter of each location status successively,
Get the mean value of forward and inverse two-way detected parameters as final detection result.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210555772.2A CN103063421B (en) | 2012-12-19 | 2012-12-19 | Automatic comprehensive detection device and detection method for inclined ring spring property |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210555772.2A CN103063421B (en) | 2012-12-19 | 2012-12-19 | Automatic comprehensive detection device and detection method for inclined ring spring property |
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| Publication Number | Publication Date |
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| CN103063421B true CN103063421B (en) | 2015-03-25 |
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| GB2537580A (en) * | 2015-01-19 | 2016-10-26 | Imp Innovations Ltd | A force measurement mechanism |
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| CN106289079A (en) * | 2016-09-20 | 2017-01-04 | 江阴华新电器科技股份有限公司 | A kind of folded riveting rotor pressure testing device |
| CN107884147A (en) * | 2017-12-26 | 2018-04-06 | 瓦房店轴承集团有限责任公司 | Novel precise compression spring marking apparatus |
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