CN107449372B - Laser triangle-based ball screw nut comprehensive parameter detection device and method - Google Patents
Laser triangle-based ball screw nut comprehensive parameter detection device and method Download PDFInfo
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- CN107449372B CN107449372B CN201710766231.7A CN201710766231A CN107449372B CN 107449372 B CN107449372 B CN 107449372B CN 201710766231 A CN201710766231 A CN 201710766231A CN 107449372 B CN107449372 B CN 107449372B
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/02—Measuring arrangements characterised by the use of optical techniques for measuring length, width or thickness
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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
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/08—Measuring arrangements characterised by the use of optical techniques for measuring diameters
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P90/00—Enabling technologies with a potential contribution to greenhouse gas [GHG] emissions mitigation
- Y02P90/30—Computing systems specially adapted for manufacturing
Abstract
The invention discloses a ball screw nut comprehensive parameter detection device based on a laser triangle, which comprises a cast iron lathe bed, an X-axis linear motion platform, a grating ruler and a V-block base, wherein the X-axis linear motion platform, the grating ruler and the V-block base are arranged on the lathe bed; the X-axis linear motion platform is provided with a gantry in the middle, two vertical motion units are arranged on the gantry, the two vertical motion units are screw guide rail pair transmission mechanisms driven by servo motors, a working plate of the first vertical motion unit is provided with a nut inner raceway profile measuring assembly, and a working plate of the second vertical motion unit is provided with a nut outer circle measuring assembly; the grating ruler is used for measuring the transverse displacement of the gantry; the V-shaped block base is provided with a V-shaped block, and the V-shaped block is provided with a nut to be tested and two standard measuring bars. The device can directly measure the key parameters of the inner raceway and the diameter of the outer circle of the nut, and has the advantages of high precision, high efficiency, high degree of automation and the like.
Description
Technical Field
The invention relates to the technical field of measurement, in particular to a device and a method for detecting comprehensive parameters of a ball screw nut based on laser triangles.
Background
At present, a ball screw pair nut is generally measured by adopting an indirect method or a contact sensor as to the raceway profile of the ball screw pair nut, wherein the indirect method is to detect the profile of a grinding wheel of a processing tool until a proper grinding wheel is selected before the raceway in the nut is processed, the grinding wheel is used for grinding a sample piece in a test mode, the obtained sample piece is cut along an axis and then projected onto a large screen to observe the profile of the raceway profile, if the requirement is met, the grinding wheel is used as a standard processing tool of the raceway, the method needs to cut the nut to damage the piece to be detected, the human factor is large, and the repeatability of a measurement result is poor; the contact measurement is carried out by using a profiler, the probe penetrates into the nut and crawls along the raceway, the profiler can obtain the raceway profile of amplified signals, the method has high requirement on the installation reference, the influence of the helix angle is not considered, the error is larger, and the efficiency is low. The outer diameter is generally measured by a micrometer, and the accuracy is not high and automation is not realized.
In summary, at the present stage, there is no special comprehensive parameter detection device, and the specific relevant parameters of the inner raceway of the nut cannot be obtained by the existing detection method.
Disclosure of Invention
The invention aims to provide a ball screw nut comprehensive parameter detection device based on a laser triangulation method, so as to realize on-line automatic detection and improve efficiency and precision.
The technical solution for realizing the purpose of the invention is as follows: the ball screw nut comprehensive parameter detection device based on the laser triangle comprises a cast iron lathe bed, an X-axis linear motion platform, a grating ruler and a V-block base, wherein the X-axis linear motion platform, the grating ruler and the V-block base are arranged on the lathe bed;
the X-axis linear motion platform is provided with a gantry, the gantry is provided with a first vertical motion unit and a second vertical motion unit, and the first vertical motion unit and the second vertical motion unit are screw guide rail pair transmission mechanisms driven by a servo motor; the first working plate of the first vertical movement unit is fixedly connected with the nut inner raceway profile measuring assembly through the vertical adapter plate, and the nut inner raceway profile measuring assembly is positioned in the gantry;
the nut inner raceway profile measuring assembly comprises a manual translation table, a sensor tool, a triangular prism, a first laser triangular sensor and a horizontal adapter plate; the manual translation stage is arranged on the vertical adapter plate in the middle, the triangular prism and the first laser triangular sensor are arranged on a sensor tool, and the sensor tool is arranged on the manual translation stage through the horizontal adapter plate.
A first measuring component of the outer circle of the nut and a second measuring component of the outer circle of the nut are arranged on a second working plate of the second vertical movement unit; the first measuring assembly of the nut excircle comprises a second laser triangle sensor, a damping strip, a locking block, a locking screw, a hand wheel, a miniature guide rail pair, a miniature supporting seat, a miniature screw pair and a miniature working plate. The second laser triangle sensor is arranged on the miniature working plate; the locking block is arranged at the side part of the miniature working plate; the damping strip is arranged on the second working plate; the locking screw can prop against the damping strip through the locking block so as to realize locking; the hand wheel is arranged at the shaft end of the miniature screw rod pair; the auxiliary shaft end of the micro screw rod is fixed on the micro supporting seat; the miniature working plate is arranged on a plane formed by a nut seat of the miniature screw rod pair and a sliding block of the miniature guide rail pair. The structure of the second measuring assembly on the outer circle of the nut is completely identical with that of the first measuring assembly on the outer circle of the nut, and the second measuring assemblies are symmetrically arranged along the normal section of the nut.
The V-shaped block base is provided with a V-shaped block, and the V-shaped block is sequentially provided with a nut to be tested, a first standard measuring rod and a second standard measuring rod.
The manual translation stage is used for adjusting the position of the first laser triangular sensor, and the optimal position is that incident laser rays reach the radial lowest position of the nut to be measured after being reflected by the triangular prism, so that the normal truncated profile of the nut to be measured is ensured to be measured.
The first vertical movement unit is used for adjusting the height of the nut inner raceway profile measuring assembly so that the first laser triangular sensor can extend into nuts with different specifications.
The second vertical movement unit is used for adjusting the heights of the first measuring assembly of the outer circle of the nut and the second measuring assembly of the outer circle of the nut, and aims to find the positions of the nut to be measured, the first standard measuring rod and the second standard measuring rod which are closest to the first measuring assembly of the outer circle of the nut and the second measuring assembly of the outer circle of the nut respectively, and the distance between light spots of the sensors of the first measuring assembly of the outer circle of the nut and the second measuring assembly of the outer circle of the nut at the positions is the diameters of the nut to be measured, the first standard measuring rod and the second standard measuring rod.
The diameters of the first standard measuring rod and the second standard measuring rod are known, and the diameters are used for compensating errors caused by clamping the V-shaped blocks.
The hand wheel drives the micro screw pair, the micro working plate moves along the arrangement direction of the micro guide rail pair, so that the second laser triangular sensor arranged on the micro working plate moves along the arrangement direction of the micro guide rail pair, the change of the distance relative to the nut to be measured is realized, and the instrument measures the diameter of the outer circle of nuts with different specifications.
When the second laser triangle sensor is adjusted to be within the range of the distance relative to the nut to be measured, the damping strip is propped against by the locking screw through the locking block to realize locking, so that the second laser triangle sensor is prevented from generating Y-direction displacement when the second working plate moves along the Z axis.
The detection method based on the device comprises the following steps:
step 1, placing a nut to be tested and two standard measuring bars on a V block, and opening a magnetic switch of the V block;
step 2, a servo motor of the X-axis linear motion platform is electrified to drive the whole gantry to move along the X-axis until a measuring head of the first laser triangle sensor stretches into a nut to be measured, at the moment, the position of the first laser triangle sensor is adjusted by using a manual translation platform, and feedback is that the reading value of a sensor controller is the largest, and the manual translation platform is locked;
step 3, the X-axis linear motion platform drives the gantry to retreat until the measuring head of the first laser triangular sensor leaves the nut to be measured, and the preparation is completed;
step 4, the X-axis linear motion platform drives the gantry to move towards the nut, the measuring head of the nut inner race contour measurement assembly arranged on the gantry goes deep into the nut to obtain the height value of the contour, the grating ruler arranged on the lathe bed obtains the displacement of the X-direction motion, and the contour parameters of the nut inner race can be obtained by importing the data obtained by the two into software;
and 5, when the sensor light spot of the nut excircle measuring assembly arranged on the gantry reaches the nut to be measured, the second vertical movement unit drives the nut excircle measuring assembly to move along the Z axis, and the maximum value of the nut excircle is searched and compared with the measuring results of the two later standard measuring bars so as to obtain the diameter of the excircle.
Compared with the prior art, the invention has the remarkable advantages that: 1) The non-contact measurement adopted by the measuring device has the advantages of good stability, high speed and high accuracy; the method is suitable for detecting a batch of nuts with the same specification in a factory, only needs to adjust a manual translation stage once, and the rest processes are all automatic, and can accurately measure the key parameters and the outer diameter of the inner raceway profile of the nut, so that the rest parameters can be calculated; 2) The method mainly uses laser to measure displacement, and leads the sensor reading into the existing software for calculation and analysis, and has the advantages of convenient measurement, high precision and good repeatability.
Drawings
Fig. 1 is a general structural diagram of a ball screw nut comprehensive parameter detection device based on a laser triangulation method.
Fig. 2 is a view in the YOZ direction of the ball screw nut integrated parameter detection device based on the laser triangulation method.
FIG. 3 is a block diagram of a nut inner race profile measurement assembly.
FIG. 4 is a flow chart of a test method of the present invention.
Detailed Description
With reference to the accompanying drawings, the ball screw nut comprehensive parameter detection device based on the laser triangle comprises a cast iron lathe bed 1, an X-axis linear motion platform 2, a grating ruler 3 and a V-block base 4 which are arranged on the lathe bed, wherein the V-block base 4 is arranged at one end of the X-axis linear motion platform 2, and the grating ruler 3 is arranged on the inner side surface of the cast iron lathe bed 1;
the X-axis linear motion platform 2 is provided with a gantry 5, the gantry 5 is provided with a first vertical motion unit 6 and a second vertical motion unit 7, and the first vertical motion unit 6 and the second vertical motion unit 7 are screw guide rail pair transmission mechanisms driven by servo motors; the first working plate 8 of the first vertical movement unit 6 is fixedly connected with the nut inner raceway profile measuring assembly 9 through the vertical adapter plate 9-1, and the nut inner raceway profile measuring assembly 9 is positioned in the gantry 5;
the nut inner raceway profile measuring assembly 9 comprises a manual translation table 9-2, a sensor tool 9-3, a triangular prism 9-4, a first laser triangular sensor 9-5 and a horizontal adapter plate 9-6; the manual translation stage 9-2 is centrally installed on the vertical adapter plate 9-1, the triangular prism 9-4 and the first laser triangular sensor 9-5 are installed on the sensor tool 9-3, and the sensor tool 9-3 is installed on the manual translation stage 9-2 through the horizontal adapter plate 9-6.
The two sides of the second working plate 10 of the second vertical movement unit 7 are symmetrically provided with a first nut outer circle measuring component 11-1 and a second nut outer circle measuring component 11-2 which have the same structure, and the first nut outer circle measuring component 11-1 comprises a second laser triangle sensor 12, a damping strip 17, a locking block 18, a locking screw 19, a hand wheel 20, a micro guide rail pair 21, a micro support seat 22, a micro lead screw pair 23 and a micro working plate 24; the second laser triangulation sensor 12 is mounted on a miniature work plate 24; the locking block 18 is arranged at the side part of the micro working plate 24; the damping strip 17 is mounted on the second work plate 10; the locking screw 19 can bear against the damping strip 17 through the locking block 18 so as to realize locking; the hand wheel 20 is arranged at the shaft end of the micro screw pair 23; the shaft end of the micro lead screw pair 23 is fixed on the micro supporting seat 22; the micro working plate 24 is arranged on a plane formed by a nut seat of the micro screw pair 23 and a sliding block of the micro guide rail pair 21, and the structure of the second measuring assembly 11-2 of the outer circle of the nut and the first measuring assembly 11-1 of the outer circle of the nut are symmetrically arranged along the normal cross section of the nut.
The V-block base 4 is provided with a V-block 13, and the V-block 13 is sequentially provided with a nut 14 to be tested, a first standard measuring rod 15 and a second standard measuring rod 16.
The manual translation stage 9-2 is used for adjusting the position of the first laser triangle sensor 9-5, and the optimal position of the manual translation stage 9-2 is that the incident laser beam reaches the radial lowest position of the nut 14 to be measured after being reflected by the triangular prism 9-4.
The detection method based on the detection device comprises the following steps:
step 1, placing a nut 14 to be tested, a first standard measuring rod 15 and a second standard measuring rod 16 on a V block 13, and opening a magnetic switch of the V block 13;
step 2, a servo motor of the X-axis linear motion platform 2 is electrified to drive the whole gantry 5 to move along the X-axis until a measuring head of the first laser triangle sensor 9-5 stretches into a nut 14 to be measured, at the moment, the position of the first laser triangle sensor 9-5 is adjusted by using the manual translation platform 9-2, and feedback is that a reading value of a sensor controller is the largest, and the manual translation platform 9-2 is locked;
step 3, the X-axis linear motion platform 2 drives the gantry 5 to retreat until the measuring head of the first laser triangle sensor 9-5 leaves the nut 14 to be measured, and the preparation is finished;
step 4, the X-axis linear motion platform 2 drives the gantry 5 to move towards the nut 14 to be tested, the measuring head of the nut inner race contour measuring assembly 9 arranged on the gantry 5 goes deep into the nut 14 to obtain the height value of the contour, the grating ruler 3 arranged on the lathe bed obtains the displacement of X-direction motion, and the contour parameters of the nut inner race can be obtained by importing the data obtained by the two into the existing simulation software;
and 5, when the sensor light spots of the first measuring component 11-1 and the second measuring component 11-2 of the outer circle of the nut arranged on the gantry 5 reach the nut 14 to be measured, the second vertical movement unit 7 drives the two measuring components of the outer circle of the nut to move along the Z axis, and the maximum value of the outer circle of the nut is searched and compared with the measuring results of the first standard measuring rod 15 and the second standard measuring rod 16 to obtain the diameter of the outer circle.
The diameter method for obtaining the excircle comprises the following steps:
assuming that the reading value of the two laser triangular sensors is x when the nut outer diameter measuring assembly moves to the nut to be measured 1 And x 2 The method comprises the steps of carrying out a first treatment on the surface of the When the nut outer diameter measuring assembly moves to the first standard measuring rod, the reading value of the two laser triangular sensors is x 3 And x 4 The method comprises the steps of carrying out a first treatment on the surface of the When the nut outer diameter measuring assembly moves to the second standard measuring rod, the reading value of the two laser triangular sensors is x 5 And x 6 The method comprises the steps of carrying out a first treatment on the surface of the Assuming that the distance between the two sensor emission ports is H, then h=x 3 +x 4 +D 1 1 Wherein D is 1 1 Due to installation of the inclined angle alpha back D 1 The projection on the Y-axis is such that,at the same time h=x 5 +x 6 +D 2 1 Wherein D is 2 1 Due to installation of the inclined angle alpha back D 2 Projection on Y-axis, +.>The installation inclination angle alpha can be obtained by utilizing the same relation, so that the diameter D of the excircle of the nut to be detected 0 ＝(H-x 1 -x 2 )·cosα。
The non-contact measurement device has the advantages of good stability, high speed and high accuracy; the method is suitable for detecting a batch of nuts with the same specification in a factory, only needs to adjust the manual translation table once, the rest processes are all automatic, and the key parameters and the outer diameter of the inner raceway molded surface of the nut can be accurately measured, so that the rest parameters can be calculated.
As described in more detail below.
The lathe bed, the gantry and the V-block base of the ball screw nut comprehensive parameter detection device based on the laser triangle are castings, motor seats of two vertical movement units are welded, the mounting surface of the ball screw guide rail pair needs grinding, and the second vertical movement unit is arranged on the side surface of the gantry and needs to ensure the verticality of the side surface and the front surface.
The outer diameter difference of two standard measuring bars in the ball screw nut comprehensive parameter detection device based on laser triangle is within 10mm, the outer diameter value of the nut to be detected is between the outer diameter values of the two standard measuring bars, and when the nut outer diameter measurement assembly moves to the nut to be detected, the reading value of the two laser triangle sensors is x 1 And x 2 The method comprises the steps of carrying out a first treatment on the surface of the When the nut outer diameter measuring assembly moves to the first standard measuring rod, the reading value of the two laser triangular sensors is x 3 And x 4 The method comprises the steps of carrying out a first treatment on the surface of the When the nut outer diameter measuring assembly moves to the second standard measuring rod, the reading value of the two laser triangular sensors is x 5 And x 6 The method comprises the steps of carrying out a first treatment on the surface of the Assuming that the distance between the two sensor emission ports is H, then h=x 3 +x 4 +D 1 1 Wherein D is 1 1 Due to installation of the inclined angle alpha back D 1 The projection on the Y-axis is such that,at the same time h=x 5 +x 6 +D 2 1 Wherein D is 2 1 Due to installation of the inclined angle alpha back D 2 Projection on Y-axis, +.>The installation inclination angle alpha can be obtained by utilizing the same relation, so that the diameter D of the excircle of the nut to be detected 0 ＝(H-x 1 -x 2 )·cosα。
The laser triangle-based ball screw nut comprehensive parameter detection device is characterized in that the grating ruler acquires X-direction displacement data and the first laser triangle sensor acquires Z-direction height value to be imported into MATLAB software, so that the contour of the inner raceway of the nut can be fitted.
The present invention will be described in further detail with reference to examples.
Examples
The inner raceway profile parameters of a ball nut are measured, and according to the reading values (0.006,0.01, … … 21.028) of a first laser sensor controller and the reading values (-1.832, -1.833, … … -4.862) of a grating ruler reading head, the two rows of data are imported into MATLAB, and the raceway profile parameters can be calculated, wherein the result is as follows: left circular arc center coordinates (3.655, -1.051), right circular arc center coordinates (3.389, -1.013), left circular arc radius of 3.3886, right circular arc center of 3.3827 and ball center coordinates (3.459, -1.413);
measuring the diameter of the outer circle of the ball nut, and reading x by a second laser sensor when a sensor light spot of the nut outer circle measuring assembly reaches the nut to be measured 1 =1.451 and third laser sensor reading x 2 When the sensor light spots of the nut excircle measuring assembly reach the first standard round bar and the second standard round bar respectively, = 3.259, the second laser sensor readings are x respectively 3 =0.832 and x 5 =0.213, the third laser sensor readings are x 4 = 1.868 and x 6 =0.475, wherein the first standard round bar diameter D 1 =72, second standard round bar diameter D 2 Sensor emitter distance h=75, first gauge round bar diameter measured =74Second Standard round bar diameter->The installation inclination angle α=5.22°, -is determined>The diameter D of the outer circle of the ball nut 0 ＝70。
From the above, the device provided by the invention can detect the inner raceway profile and the outer circle diameter of the ball nut, and has the advantages of high accuracy and real and reliable measurement data.
Claims (6)
1. The ball screw nut comprehensive parameter detection device based on the laser triangle is characterized by comprising a cast iron lathe bed [1] and an X-axis linear motion platform [2], a grating ruler [3] and a V-block base [4] which are arranged on the lathe bed, wherein one end of the X-axis linear motion platform [2] is provided with the V-block base [4], and the inner side surface of the cast iron lathe bed [1] is provided with the grating ruler [3];
the X-axis linear motion platform [2] is provided with a gantry [5], the gantry [5] is provided with a first vertical motion unit [6] and a second vertical motion unit [7], and the first vertical motion unit [6] and the second vertical motion unit [7] are screw guide rail pair transmission mechanisms driven by servo motors; the first working plate [8] of the first vertical movement unit [6] is fixedly connected with the nut inner raceway profile measuring assembly [9] through the vertical adapter plate [9-1], and the nut inner raceway profile measuring assembly [9] is positioned in the gantry [5 ];
the nut inner raceway profile measuring assembly [9] comprises a manual translation table [9-2], a sensor tool [9-3], a triangular prism [9-4], a first laser triangular sensor [9-5] and a horizontal adapter plate [9-6]; the manual translation stage [9-2] is centrally arranged on the vertical adapter plate [9-1], the triangular prism [9-4] and the first laser triangular sensor [9-5] are arranged on the sensor tool [9-3], and the sensor tool [9-3] is arranged on the manual translation stage [9-2] through the horizontal adapter plate [9-6];
the two sides of the second working plate (10) of the second vertical movement unit (7) are symmetrically provided with a first nut outer circle measuring component (11-1) and a second nut outer circle measuring component (11-2) which have the same structure.
2. The device for detecting the comprehensive parameters of the ball screw nut based on the laser triangle according to claim 1, wherein the first measuring component [11-1] of the outer circle of the nut comprises a second laser triangle sensor [12], a damping strip [17], a locking block [18], a locking screw [19], a hand wheel [20], a miniature guide rail pair [21], a miniature supporting seat [22], a miniature screw pair [23] and a miniature working plate [24]; the second laser triangular sensor [12] is arranged on the miniature working plate [24]; the locking block (18) is arranged on the side part of the miniature working plate (24); the damping strip [17] is arranged on the second working plate [10 ]; the locking screw [19] can prop against the damping strip [17] through the locking block [18] so as to realize locking; the hand wheel [20] is arranged at the shaft end of the miniature screw rod pair [23 ]; the shaft end of the micro lead screw pair (23) is fixed on the micro supporting seat (22); the miniature working plate [24] is arranged on a plane formed by a nut seat of the miniature screw pair [23] and a sliding block of the miniature guide rail pair [21], and the structure of the second measuring component [11-2] on the outer circle of the nut and the first measuring component [11-1] on the outer circle of the nut are symmetrically arranged along the normal cross section of the nut.
3. The laser triangle-based ball screw nut comprehensive parameter detection device according to claim 1, wherein a V block [13] is arranged on the V block base [4], and a nut [14], a first standard measuring rod [15] and a second standard measuring rod [16] to be detected are sequentially arranged on the V block [13 ].
4. The laser triangle-based ball screw nut comprehensive parameter detection device according to claim 1, wherein the manual translation stage [9-2] is used for adjusting the position of the first laser triangle sensor [9-5], and the optimal position of the manual translation stage [9-2] is that the incident laser light reaches the radial lowest position of the nut [14] to be detected after being reflected by the triple prism [9-4 ].
5. A detection method based on the detection device of claim 3, comprising the steps of:
step 1, placing a nut [14] to be tested, a first standard measuring rod [15] and a second standard measuring rod [16] on a V block [13], opening a magnetic switch of the V block [13 ];
step 2, a servo motor of the X-axis linear motion platform [2] is electrified to drive the whole gantry [5] to move along the X-axis until a measuring head of the first laser triangle sensor [9-5] stretches into a nut [14] to be measured, at the moment, the position of the first laser triangle sensor [9-5] is adjusted by using the manual translation platform [9-2], feedback is that the reading value of a sensor controller is the largest, and the manual translation platform [9-2] is locked;
step 3, the X-axis linear motion platform [2] drives the gantry [5] to retreat until the measuring head of the first laser triangle sensor [9-5] leaves the nut [14] to be measured, and the preparation is completed;
step 4, an X-axis linear motion platform [2] drives a gantry [5] to move towards a nut [14] to be tested, a measuring head of a nut inner race contour measurement assembly [9] arranged on the gantry [5] goes deep into the nut [14] to obtain a contour height value, a grating ruler [3] arranged on a lathe bed obtains X-direction motion displacement, and data obtained by the two displacement are imported into existing simulation software to obtain contour parameters of a nut inner race;
and 5, when the sensor light spots of the first measuring component [11-1] and the second measuring component [11-2] of the nut excircle arranged on the gantry [5] reach the nut [14] to be measured, the second vertical movement unit [7] drives the two measuring components of the nut excircle to move along the Z axis, and the maximum value of the nut excircle is searched and compared with the measuring results of the first standard measuring rod [15] and the second standard measuring rod [16] to obtain the diameter of the excircle.
6. The method according to claim 5, wherein the diameter of the outer circle obtained in step 5 is as follows:
assuming that the reading value of the two laser triangular sensors is x when the nut outer diameter measuring assembly moves to the nut to be measured 1 And x 2 The method comprises the steps of carrying out a first treatment on the surface of the When the nut outer diameter measuring assembly moves to the first standard measuring rod, the reading value of the two laser triangular sensors is x 3 And x 4 The method comprises the steps of carrying out a first treatment on the surface of the When the nut outer diameter measuring assembly moves to the second standard measuring rod, the reading value of the two laser triangular sensors is x 5 And x 6 The method comprises the steps of carrying out a first treatment on the surface of the Assuming that the distance between the two sensor emission ports is H, then h=x 3 +x 4 +D 1 1 Wherein D is 1 1 Due to the installation of the inclination angle alpha back D 1 Projection on Y-axis, D 1 Is a first standard rod [15]]The diameter of the tube is set to be equal to the diameter,at the same time h=x 5 +x 6 +D 2 1 Wherein D is 2 1 Due to the installation of the inclination angle alpha back D 2 Projection on Y-axis, D 2 Is a second standard rod [16]]Diameter (L)>The installation inclination angle alpha can be obtained by utilizing the same relation, so that the diameter D of the excircle of the nut to be detected 0 ＝(H-x 1 -x 2 )·cosα。
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| CN108592795A (en) * | 2018-06-06 | 2018-09-28 | 中国计量科学研究院 | A kind of thread parameter measurement device based on spectral confocal sensor |
| CN108871229B (en) * | 2018-06-11 | 2020-04-17 | 南京理工大学 | Method for measuring curved surface and outer diameter of spiral inner raceway of ball nut |
| CN109655409B (en) * | 2019-02-22 | 2021-01-01 | 常熟理工学院 | Lead screw nut self-locking imaging detection device for recycling lead screw |
Family Cites Families (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001272215A (en) * | 2000-03-23 | 2001-10-05 | Niigata Eng Co Ltd | Measuring method of screw, apparatus therefor and determining apparatus for propriety of shape of screw |
| US8593644B2 (en) * | 2010-12-13 | 2013-11-26 | Southwest Research Institute | White light optical profilometer for measuring complex surfaces |
| CN103424071B (en) * | 2012-05-23 | 2016-02-10 | 北京理工大学 | The intrinsic geometrical parameter calibration method of endoporus gauge head based on laser triangulation |
| CN103968751A (en) * | 2013-02-01 | 2014-08-06 | 昆山诺丹舜蒲胶辊有限公司 | Automatic laser measuring instrument of rubber rollers |
| CN104792276B (en) * | 2015-04-13 | 2017-06-27 | 西安交通大学 | A kind of high-precision optical fiber detection method towards inner roller path of ball nut curved surface |
| CN205748289U (en) * | 2016-06-24 | 2016-11-30 | 西安博瓦工业自动化设备有限公司 | A kind of device measuring external diameter |
| CN207163415U (en) * | 2017-08-30 | 2018-03-30 | 南京理工大学 | Ball-screw nut comprehensive parameters detection means based on laser triangulation |
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2017
- 2017-08-30 CN CN201710766231.7A patent/CN107449372B/en active Active
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