CN106767281B - Water seal assembly height measurement method and measurement device for realizing same - Google Patents
Water seal assembly height measurement method and measurement device for realizing same Download PDFInfo
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- CN106767281B CN106767281B CN201611235756.XA CN201611235756A CN106767281B CN 106767281 B CN106767281 B CN 106767281B CN 201611235756 A CN201611235756 A CN 201611235756A CN 106767281 B CN106767281 B CN 106767281B
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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
- G01B5/00—Measuring arrangements characterised by the use of mechanical techniques
- G01B5/02—Measuring arrangements characterised by the use of mechanical techniques for measuring length, width or thickness
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- A Measuring Device Byusing Mechanical Method (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention relates to the field of water seal measuring devices, in particular to a water seal assembly height measuring method and a measuring device for realizing the method. The water seal assembly height measurement method comprises the following steps: 1) The first distance measuring sensor and the second distance measuring sensor which are arranged on the measuring seat are used for measuring and calibrating the calibration block at the same time; 2) Positioning and assembling the water seal assembly part on a measuring seat of a measuring device, measuring the position of the water seal assembly seat ring surface through a first ranging sensor facing the water seal assembly seat ring surface, and measuring the position of the water seal assembly top surface through a second ranging sensor arranged on the measuring seat; 3) And calculating the height of the water seal assembly through the measurement values of the first distance measuring sensor and the second distance measuring sensor. Compared with the existing water seal assembly measuring method, the water seal assembly measuring method disclosed by the invention has the advantages that the height of the water seal assembly is measured through the two distance measuring sensors, the automatic operation can be realized, the measuring efficiency is high, and the problem of low measuring efficiency of the existing water seal assembly height measuring method is solved.
Description
Technical Field
The invention relates to the field of water seal measuring devices, in particular to a water seal assembly height measuring method and a measuring device for realizing the method.
Background
As shown in fig. 1, a water seal assembly part is shown, wherein a water seal assembly 20 is arranged between a shell 10 and a mandrel 30, the water seal assembly 20 is provided with a shaft hole matched with the mandrel 30, the water seal assembly comprises a movable ring 201 and a static ring 202, a sealing surface is formed between the movable ring 201 and the static ring 202, the sealing surface can ensure the tightness of the water seal assembly, the height dimension and the end face runout of the water seal assembly 20 along the axial direction of the shaft hole must be ensured to meet the requirements when the water seal assembly 20 is assembled, and the tightness and the reliability of the water seal assembly can be influenced when the height and the end face runout of the water seal assembly exceed the allowable range of errors. The height of the water seal assembly is the vertical distance a between the top surface 204 of the water seal assembly and the seat surface 401 of the water seal assembly. The test fixture 70 for the end face runout of the water seal assembly commonly used at present is shown in fig. 2, and comprises a measuring seat 701, a test body 702 and a dial indicator 703, wherein a workpiece is positioned on the measuring seat 701 during measurement, the moving ring of the water seal assembly faces upwards, the test body 702 is placed on the moving ring surface, the test body 702 is rotated for a circle, and the end face runout of the water seal assembly can be obtained through reading in a reading device of the dial indicator 703.
When the height and the size of the water seal assembly are measured at present, the adopted measuring device is shown in fig. 3, the measuring device 50 comprises an outer cylinder 502, a dial indicator 501 and a detection body 503 which is arranged in the outer cylinder 502 and is elastically connected with the dial indicator 501, the dial indicator 501 is firstly zeroed by adopting a standard block 60 during measurement, then the detection body 503 is sleeved on a mandrel to enable a measuring claw of the detection body 503 to be propped against the top surface of the water seal assembly, then the outer cylinder 502 is manually pushed to enable the measuring claw of the outer cylinder to be propped against the seat ring surface of the water seal assembly, and in the measuring process, whether the outer cylinder is contacted with the seat ring surface of the water seal assembly or not needs to be observed manually.
Disclosure of Invention
The invention aims to provide a water seal assembly height measurement method, which aims to solve the problem of low efficiency of the current water seal assembly height measurement; in addition, the invention also aims to provide a water seal assembly height measuring device for realizing the water seal assembly height measuring method.
In order to achieve the above purpose, the water seal assembly height measurement method of the invention has the technical scheme that: the water seal assembly height measurement comprises the following steps: 1) The first distance measuring sensor and the second distance measuring sensor are arranged on the measuring seat, and the calibration block is measured at the same time so as to calibrate the first distance measuring sensor and the second distance measuring sensor; 2) Positioning and assembling the water seal assembly part on a measuring seat of a measuring device, measuring the position of the water seal assembly seat ring surface through a first ranging sensor facing the water seal assembly seat ring surface, and measuring the position of the water seal assembly top surface through a second ranging sensor arranged on the measuring seat facing the water seal assembly top surface; 3) And calculating the height of the water seal assembly through the measurement values of the first distance measuring sensor and the second distance measuring sensor.
Further, the method further comprises the step of rotating a mandrel which is matched with the shaft hole of the water seal assembly, driving a movable ring of the water seal assembly to rotate through the mandrel, and measuring the jumping amount of the end face of the water seal assembly through a second distance measuring sensor.
Further, the second distance measuring sensor is an electro-optical distance measuring sensor.
Further, the first distance measuring sensor is a contact type distance measuring sensor, and the contact type distance measuring sensor is arranged on the driving cylinder so as to be driven by the driving cylinder to contact with the seat ring surface of the water seal assembly during measurement.
The invention relates to a water seal assembly height measuring device, which comprises the following technical scheme: the water seal assembly height measuring device comprises a measuring seat for fixing the water seal assembly part, a positioning structure for positioning and matching with the water seal assembly part is arranged on the measuring seat, and a first ranging sensor for facing the seat ring surface of the water seal assembly when the water seal assembly part is positioned and fixed on the measuring seat and a second ranging sensor for facing the top surface of the water seal assembly when the water seal assembly part is positioned and fixed on the measuring seat are also arranged on the measuring seat.
Further, the water seal assembly height measuring device also comprises a rotary driving device for driving the mandrel matched with the water seal assembly to rotate so as to drive the movable ring of the water seal assembly to rotate, and the rotary driving device comprises a fixing claw for clamping the mandrel.
Further, the water seal assembly measuring device also comprises a calibration block, wherein the calibration block is provided with a first position corresponding to the water seal assembly seat ring surface of the standard water seal assembly part and a second position corresponding to the water seal assembly top surface of the standard water seal assembly part.
Further, the second distance measuring sensor is an electro-optical distance measuring sensor.
Further, the first distance measuring sensor is a contact type distance measuring sensor, and the contact type distance measuring sensor is arranged on the driving cylinder so as to be driven by the driving cylinder to contact with the seat ring surface of the water seal assembly during measurement.
Further, the measuring seat is provided with a compressing cylinder for compressing and fixing the water seal assembly on the measuring seat.
The beneficial effects of the invention are as follows: according to the water seal assembly height measurement method, the position of the seat ring surface of the water seal assembly is measured through the first distance measuring sensor arranged on the measurement seat, the position of the top surface of the water seal assembly is measured through the second distance measuring sensor arranged on the measurement seat, and the height of the water seal assembly is calculated through the measured values of the first distance measuring sensor and the second distance measuring sensor.
Further, the mandrel assembled in the shaft hole of the water seal assembly is enabled to rotate, the movable ring of the water seal assembly is driven to rotate through the mandrel, the end face runout of the water seal assembly is measured through the second distance measuring sensor, a special measuring device is not needed to be additionally arranged, and the detection efficiency of the height of the water seal assembly and the end face runout is improved.
Drawings
FIG. 1 is a schematic view of a water seal assembly of the prior art;
FIG. 2 is a schematic structural diagram of a gauge for measuring the runout of the end surface of a water seal assembly in the prior art;
FIG. 3 is a schematic view of a measuring device for measuring the height of a water seal assembly in the prior art;
FIG. 4 is a front view of an embodiment of the water seal assembly height measurement device of the present invention;
FIG. 5 is a cross-sectional view of a right side view of an embodiment of the water seal assembly height measurement device of the present invention;
fig. 6 is a partial enlarged view of fig. 5.
Detailed Description
Embodiments of the present invention will be further described with reference to the accompanying drawings.
As shown in fig. 4 to 6, the water seal assembly height measuring device of the present invention includes a measuring seat 1, and a positioning structure for positioning and matching with a water seal assembly component 2 and a fixing claw 11 for fixing the water seal assembly component 2 are disposed on the measuring seat 1. The positioning structure in this embodiment is a positioning pin that cooperates with the water seal assembly component, and in other embodiments, the positioning structure may be a positioning table or the like. The fixed jaw 11 is connected with a compression cylinder 12 which drives the fixed jaw 11 to clamp the tested water seal assembly part 2 on the measuring seat 1, the fixed jaw 11 is provided with two, and the tested water seal assembly part is fixed on the measuring seat 1 under the combined action of the compression cylinder 12 and the fixed jaw 11. The water seal assembly height measuring device further comprises a calibration block, wherein the calibration block is provided with a first position corresponding to the water seal assembly seat ring surface of the standard water seal assembly part and a second position corresponding to the water seal assembly top surface, and the distance between the first position and the second position on the calibration block is the standard value of the water seal assembly height.
The measuring seat 1 is provided with a first ranging sensor which faces the seat ring surface of the water seal assembly when the water seal assembly part is positioned and fixed on the measuring seat and a second ranging sensor which faces the top surface of the water seal assembly when the water seal assembly part is positioned and fixed on the measuring seat. In this embodiment, the second ranging sensor is an electro-optical ranging sensor 13, and the first ranging sensor is a contact ranging sensor 14. In this embodiment, the electro-optical ranging sensor 13 measures the position of the top surface of the water seal assembly, and the contact ranging sensor 14 measures the position of the bottom surface of the water seal assembly.
In this embodiment, in order to facilitate the installation of the water seal assembly component 2, the water seal assembly component 2 is assembled on the measuring seat 1 downward, the top of the water seal assembly 21 is downward, and the movable ring of the water seal assembly 21 is located below the stationary ring. The contact sensor 14 is arranged on the driving cylinder, and the driving cylinder drives the seat ring surface of the contact water seal assembly, in the embodiment, the driving cylinder 16 comprises a cylinder rod 15, and the contact sensor is arranged at the end part of the cylinder rod 15. The contact type sensor is driven by the cylinder rod 15 to be in contact with the water seal assembly seat ring surface of the water seal assembly 21, the water seal assembly seat ring surface is flush with the bottom surface of the water seal assembly, the contact type distance measuring sensor 14 is in contact with the water seal assembly seat ring surface for convenient measurement, and the structure of the water seal assembly height measuring device can be simplified. The height of the water seal assembly is measured by an electro-optical distance measuring sensor 13 and a contact distance measuring sensor 14.
In this embodiment, the mandrel 3 is assembled in the shaft hole of the water seal assembly part 2, the water seal assembly height measuring device further comprises a rotation driving device 4 for driving the mandrel 3 to rotate, a pneumatic clamping jaw 41 is arranged on the rotation driving device 4, an operation part 31 for clamping and fixing the pneumatic clamping jaw 41 is arranged on the mandrel 3, and the rotation driving device 4 drives the mandrel 3 to rotate by driving the pneumatic clamping jaw 41 to rotate. The mandrel 3 and the water seal assembly are adapted to drive the movable ring of the water seal assembly part 2 to rotate, and the end face jumping amount of the water seal assembly can be measured through the photoelectric ranging sensor 13.
According to the water seal assembly height measuring device, the photoelectric distance measuring sensor 13 and the contact distance measuring sensor 14 are used for measuring the height of the water seal assembly, the rotating mandrel 3 is used for driving the movable ring of the water seal assembly 21 to rotate, the photoelectric distance measuring sensor 13 is used for measuring the end face jumping amount of the water seal assembly 21, a special end face jumping amount detecting device is not needed, the time for replacing the detecting device is shortened, meanwhile, the water seal assembly height measuring device is used for detecting the height and the end face jumping amount of the water seal assembly, manual intervention is not needed, automatic online detection of the height and the jumping amount of the water seal assembly is achieved, detection efficiency is improved, the detection value is automatically uploaded to an industrial personal computer, and process capability CPK can be monitored at any time.
In this embodiment, the measuring seat 1 includes a backing plate 17, the water seal assembly part is fixed on the backing plate 17, the backing plate 17 is provided with an avoidance hole 171, the mandrel 3 is inserted into the avoidance hole 171, the measurement signal of the electro-optical ranging sensor 13 passes through the avoidance hole 171, and the cylinder rod 15 also passes through the avoidance hole 171 to drive the contact ranging sensor 14 to be in surface contact with the water seal assembly seat ring during measurement.
When the water seal assembly height detection device is used for detection, the method comprises the following steps:
1) The calibration block is used for calibrating the water seal assembly height measuring device, and the contact ranging sensor 14 and the photoelectric ranging sensor 13 are used for zeroing the calibration block during calibration. In the measuring process of the contact type distance measuring sensor 14, the stroke of the driving cylinder is set, so that the distance between the driving cylinder and the calibration block is matched with the stroke of the driving cylinder, and when the contact type distance measuring sensor 14 measures, the elastic contact of the contact type distance measuring sensor is compressed and pushed to the first position, and at the moment, the contact type distance measuring sensor 14 is zeroed. The electro-optical distance measuring sensor is directly opened to measure the position of the second position and then zeroed.
2) The water seal assembly part to be detected is positioned and arranged on the measuring seat 1, the compression cylinder is started, and the fixing claw 11 is driven to fix the water seal assembly part on the measuring seat 1. The method comprises the steps that a contact type distance measuring sensor 14 and an electro-optical distance measuring sensor 13 are installed on a measuring seat 1, a driving cylinder 16 is started to push out a cylinder rod 15, the contact type distance measuring sensor 14 at the end part of the cylinder rod 15 is in surface contact with a water seal assembly seat ring, the position of the bottom surface of the water seal assembly is measured, the electro-optical distance measuring sensor 13 is started to measure the position of the top surface of the water seal assembly, the contact type distance measuring sensor 14 pushes the contact type distance measuring sensor to a standard position in the measuring process, an elastic contact of the contact type distance measuring sensor 14 is in surface contact with the water seal assembly seat ring, at the moment, when the water seal assembly seat ring surface of a water seal assembly part to be measured is located in front of a first position, the compression amount of the elastic contact type distance measuring sensor is increased relative to a measuring calibration block, the measurement value is negative, when the water seal assembly seat ring surface of the water seal assembly part with the measurement is located behind the first position, and the measurement value is positive. Similarly, the measured value of the electro-optical distance measuring sensor also shows a relative measured value according to the relation between the top surface of the water seal assembly and the second position of the calibration block.
3) The height of the water seal assembly is calculated through the measured value of the contact type distance measuring sensor 14, the measured value of the photoelectric distance measuring sensor 13 and the standard distance value of the first position and the second position of the calibration block.
4) The end face runout of the water seal assembly 21 is measured, the mandrel 3 is clamped by the pneumatic clamping jaw 41, the rotary driving device is started to drive the pneumatic clamping jaw 41 to rotate, the pneumatic clamping jaw 41 drives the mandrel 3 to rotate, the mandrel 3 drives the movable ring of the water seal assembly to rotate, and the value obtained after the photoelectric distance measuring sensor 13 measures the movable ring to rotate for one circle is the end face runout of the water seal assembly.
The specific embodiment of the water seal assembly height measuring method is the same as the method described in the specific embodiment of the water seal assembly height measuring device, and is not repeated.
In other embodiments of the water seal assembly height measuring method and the measuring device for implementing the method, the second distance measuring sensor may be an electro-optical distance measuring sensor, and in the same way, the first distance measuring sensor and the second distance measuring sensor may be contact distance measuring sensors; the water seal assembly part can be upwards assembled on the measuring seat, and the rotary driving device and the pneumatic clamping jaw are arranged below the water seal assembly part; the calibration block can be used for not setting a first position and a second position corresponding to the standard water seal module, the two ranging sensors can be calibrated and zeroed only through the same calibration plane, and the height of the water seal assembly is the difference between actual measurement data measured by the two ranging sensors.
Claims (8)
1. The water seal assembly height measurement method is characterized by comprising the following steps of: 1) The method comprises the steps that a first ranging sensor and a second ranging sensor which are arranged on a measuring seat are used for measuring a calibration block at the same time so as to realize the calibration and zero setting of the first ranging sensor and the second ranging sensor, the calibration block is provided with a first position corresponding to a water seal assembly seat ring surface of a standard water seal assembly part and a second position corresponding to a water seal assembly top surface, and the distance between the first position and the second position on the calibration block is a standard value of the water seal assembly height; 2) Positioning and assembling the water seal assembly part on a measuring seat of a measuring device along with the mandrel, measuring the position of the seat ring surface of the water seal assembly through a first ranging sensor facing the seat ring surface of the water seal assembly, and measuring the position of the top surface of the water seal assembly through a second ranging sensor arranged on the measuring seat facing the top surface of the water seal assembly, wherein the first ranging sensor and the second ranging sensor are both arranged on the same side of the water seal assembly to be measured; 3) When the water seal assembly seat ring surface of the water seal assembly part to be measured is positioned in front of the first position, the measured value of the first ranging sensor is negative, and when the water seal assembly seat ring surface of the water seal assembly part to be measured is positioned behind the first position, the measured value of the first ranging sensor is positive, and similarly, the measured value of the second ranging sensor also displays a corresponding measured value according to the relation between the water seal assembly top surface and the second position of the calibration block, and the height of the water seal assembly is calculated through the measured values of the first ranging sensor and the second ranging sensor and the standard value between the first position and the second position;
4) And (3) rotating a mandrel which is matched with the shaft hole of the water seal assembly, driving a movable ring of the water seal assembly to rotate through the mandrel, and measuring the jumping amount of the end face of the water seal assembly through a second ranging sensor.
2. The water seal assembly height measurement method according to claim 1, wherein: the second distance measuring sensor is an electro-optical distance measuring sensor.
3. The water seal assembly height measurement method according to claim 1 or 2, wherein: the first distance measuring sensor is a contact type distance measuring sensor which is arranged on the driving cylinder so as to be driven by the driving cylinder to contact with the seat ring surface of the water seal assembly during measurement.
4. The utility model provides a water seal assembly height measuring device, is equipped with on measuring the seat and is used for with water seal assembly part location complex location structure, its characterized in that including the measurement seat that is used for fixed water seal assembly part: the measuring seat is also provided with a first ranging sensor which is used for facing the seat ring surface of the water seal assembly when the water seal assembly part is positioned and fixed on the measuring seat and a second ranging sensor which is used for facing the top surface of the water seal assembly when the water seal assembly part is positioned and fixed on the measuring seat;
the water seal assembly height measuring device further comprises a calibration block, wherein the calibration block is provided with a first position corresponding to a water seal assembly seat ring surface of a standard water seal assembly part and a second position corresponding to a water seal assembly top surface of the standard water seal assembly part, and the distance between the first position and the second position on the calibration block is a standard value of the water seal assembly height;
the first distance measuring sensor and the second distance measuring sensor are both arranged on the same side of a positioning structure for positioning and matching with the water seal assembly component; the water seal assembly height measuring device adopts the water seal assembly height measuring method of any one of claims 1-3 to carry out measuring operation.
5. The water seal assembly height measurement device of claim 4, wherein: the water seal assembly height measuring device also comprises a rotary driving device for driving the mandrel matched with the water seal assembly to rotate so as to drive the movable ring of the water seal assembly to rotate, and the rotary driving device comprises a fixing claw for clamping the mandrel.
6. The water seal assembly height measurement device according to claim 4 or 5, wherein: the second distance measuring sensor is an electro-optical distance measuring sensor.
7. The water seal assembly height measurement device according to claim 4 or 5, wherein: the first distance measuring sensor is a contact type distance measuring sensor which is arranged on the driving cylinder so as to be driven by the driving cylinder to contact with the seat ring surface of the water seal assembly during measurement.
8. The water seal assembly height measurement device according to claim 4 or 5, wherein: the measuring seat is provided with a compressing cylinder for compressing and fixing the water seal assembly on the measuring seat.
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| CN201611235756.XA CN106767281B (en) | 2016-12-28 | 2016-12-28 | Water seal assembly height measurement method and measurement device for realizing same |
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