CN206056536U - Based on the belt wheel detecting system that laser ranging is indexed with stepping - Google Patents
Based on the belt wheel detecting system that laser ranging is indexed with stepping Download PDFInfo
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- CN206056536U CN206056536U CN201621052515.7U CN201621052515U CN206056536U CN 206056536 U CN206056536 U CN 206056536U CN 201621052515 U CN201621052515 U CN 201621052515U CN 206056536 U CN206056536 U CN 206056536U
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- China
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- plc
- programmable logic
- logic controller
- displacement sensor
- synchronous pulley
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Abstract
The utility model discloses a kind of belt wheel detecting system indexed with stepping based on laser ranging, including measuring unit, rotation performance element, control computing unit；Measuring unit is made up of rack-mount laser displacement sensor；Rotation performance element is made up of biphase synchronous motor and the detected synchronous pulley being sleeved on its motor shaft；Computing unit is controlled for programmable logic controller (PLC)；The data acquisition input interface of programmable logic controller (PLC) is connected with the data signal output interface of laser displacement sensor, and the output control interface of programmable logic controller (PLC) is connected with the step actuator input control interface of two-phase stepping motor；Host computer is communicated to connect with programmable logic controller (PLC) by communication cable；The light projector axis of laser displacement sensor is arranged perpendicular to the tooth top surface of the detected synchronous pulley.This utility model advantage is the combination by step motor drive index technology and laser ranging technique, has used a distance value to characterize two kinds of precision.
Description
Technical field
This utility model is related to synchronous pulley detecting system, more particularly, to the belt wheel indexed with stepping based on laser ranging
Detecting system.
Background technology
Synchronous pulley be for precision drive, therefore when synchronous pulley it is uneven if there is tooth pitch angle, then in work
During work by cause Timing Belt when pine, when the unequal situation of tensile force, the especially less synchronous pulley of diameter, will make
Being greatly lowered into transmission accuracy, even resulting in instrument drive system cannot work, such as the sample of full-automatic in-vitro diagnosis equipment
This Transmission system etc..At present, to the method for taking indirect measurement by deflection instrument 6 more than the detection of synchronous pulley tooth pitch angle,
As shown in figure 5, workpiece 7 is synchronous pulley, the reading of each tooth peak of synchronous pulley is measured using 8 measuring instrument of dial gauge,
Manual record measurement data, therefrom finds out maximum and minima, and it is concentricity to subtract each other the data definition for obtaining afterwards；But for
Whether equal tooth pitch is can not measure, while needing manual toggle synchronous pulley to rotate, easily cause systematic error and detection efficiency
It is low with accuracy of detection, and manual record data also easily malfunction.
The content of the invention
This utility model purpose is to provide a kind of belt wheel detecting system indexed with stepping based on laser ranging.
For achieving the above object, this utility model takes following technical proposals：
The belt wheel detecting system indexed with stepping based on laser ranging described in the utility model, including measuring unit, rotation
Performance element, control computing unit；Shown measuring unit is made up of rack-mount laser displacement sensor；The rotation
Performance element is made up of biphase synchronous motor and the detected synchronous pulley being sleeved on its motor shaft；The control computing unit
For programmable logic controller (PLC)；The data acquisition input interface of the programmable logic controller (PLC) and the laser displacement sensor
The connection of data signal output interface, the output control interface of programmable logic controller (PLC) and the stepping of the two-phase stepping motor
Driver input control interface connection；Host computer or touch screen are communicated to connect with programmable logic controller (PLC) by communication cable；
The light projector axis of the laser displacement sensor is arranged perpendicular to the tooth top surface of the detected synchronous pulley.
This utility model advantage is to overcome existing to carry out indirect detection to synchronous pulley tooth pitch angle by deflection instrument
Existing deficiency.By the combination of step motor drive index technology and laser ranging technique, a distance value table has been used
Two kinds of precision are levied, i.e.,：The axis hole of synchronous pulley and the concentricity of driving cog, the tooth pitch accuracy of manufacture；Accuracy of detection is up to step pitch
The 3% of angle, i.e., 0.225 × 3%=0.00675 ° and do not add up.Detection process is contactless, it is to avoid the traditional scheme such as dial gauge is because of bullet
The systematic error problem that spring force compressing is caused.Meanwhile, detection process is not required to artificial participation, using step motor drive, without operation
Error.Reason programmable logic controller (PLC) at detection data calculating（PLC）Complete, reliability is high.
Description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is control circuit theory diagram of the present utility model.
Fig. 3 is synchronous belt wheel structure schematic diagram described in the utility model.
Fig. 4 is the A-A of Fig. 3 to cross section structure diagram.
Fig. 5 is the schematic diagram that prior art is detected to synchronous pulley tooth pitch angle.
Specific embodiment
As Figure 1-4, the belt wheel detecting system indexed with stepping based on laser ranging described in the utility model, including survey
Amount unit, rotation performance element, control computing unit；Shown measuring unit is by the laser displacement sensor 1 on support 5
（HG-C is serial, resolution 0.001mm；Matsushita Electric Industries are electromechanical（China）Company limited produces）Composition；The rotation performance element
It is made up of two-phase stepping motor 2 and the detected synchronous pulley 3 being sleeved on its motor shaft；It is described to control computing unit to compile
Journey logic controller, as shown in Fig. 2 the data acquisition input interface of the programmable logic controller (PLC) is passed with the laser displacement
The data signal output interface connection of sensor 1, the output control interface of programmable logic controller (PLC) and the biphase synchronous motor 2
Step actuator input control interface connection；Host computer（Touch screen）Communicated with programmable logic controller (PLC) by communication cable
Connection；The light projector axis 4 of the laser displacement sensor 1 is arranged perpendicular to the tooth top surface of the detected synchronous pulley 3.
Utility model works process is existing to be summarized as follows by taking 16 toothed timing wheels as an example：
Synchronous pulley 3 has 16 teeth altogether, and between tooth and tooth, angle is 360 °/16=22.5 °, is driven with two-phase stepping motor 2
When dynamic, electrically using eight subdivisions, i.e. two-phase stepping motor 2 often walk the further anglec of rotation be 360 °/（200×8）=
0.225 °, and error do not add up；So, programmable logic controller (PLC)（PLC）Two-phase stepping motor 2 is driven to rotate 100 steps every time,
I.e. two-phase stepping motor 2 rotates 0.225 × 100=22.5 °, that is, one angular pitch of rotation.
According to above-mentioned selection step from value on laser displacement sensor 1, synchronous pulley 3 revolves programmable logic controller (PLC)
The common value that circles 16, it is worthwhile at this 16 in, programmable logic controller (PLC) (PLC) be responsible in strict accordance with per 100 steps gather
One data carries out data acquisition, data is passed to host computer by connection afterwards and is stored, and host computer is responsible for reception
Data are stored, and are stored to the motion of motor 2 and are stopped；After motor 2 stops, PLC is responsible for being sent to stop signal
Host computer, host computer carry out a bubble sort according to the total data for receiving（I.e. two numbers compare, and big data are preserved, little
Data ignore）, maximum is obtained, a bubble sort is carried out afterwards again, minima is obtained；Four arithmetic operation is carried out afterwards, is asked
Take the difference of maximum, minima；That is height fall value.The shift value is a concentrated expression tooth pitch precision and endoporus and tooth
The value of tip circle decentraction precision.
During if there is indexing inaccurate synchronous pulley 3, then the point non-equally phase place for obtaining on 22.5 °, i.e.,:Have
Point is obtained on the tooth top of synchronous pulley 3, and some points are obtained in the bottom of the tooth portion of synchronous pulley 3, will cause the change of shift differences,
So as to characterize the precision of the tooth pitch differential seat angle of synchronous pulley 3.
If deviation or crooked occurs in the axis hole of synchronous pulley 3, axis hole axis occurs one with outside circle axis
Larger deviation, hence it is evident that the order of severity that the drop value, the i.e. value characterize manufacture decentraction can be greatly increased.
Tooth pitch precision and endoporus and outside circle decentraction precision are common manufacturing defect phase closing precisions, so this number
According to the accuracy of manufacture for just characterizing belt wheel.
Claims (1)
1. a kind of belt wheel detecting system based on laser ranging and stepping indexing, it is characterised in that：Hold including measuring unit, rotation
Row unit, control computing unit；Shown measuring unit is made up of rack-mount laser displacement sensor；The rotation is held
Row unit is made up of two-phase stepping motor and the detected synchronous pulley being sleeved on its motor shaft；The computing unit that controls is
Programmable logic controller (PLC)；The data acquisition input interface of the programmable logic controller (PLC) and the laser displacement sensor
Data signal output interface connects, and the output control interface of programmable logic controller (PLC) is driven with the stepping of the two-phase stepping motor
Dynamic device input control interface connection；Host computer is communicated to connect with programmable logic controller (PLC) by communication cable；The laser position
The light projector axis of displacement sensor is arranged perpendicular to the tooth top surface of the detected synchronous pulley.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621052515.7U CN206056536U (en) | 2016-09-13 | 2016-09-13 | Based on the belt wheel detecting system that laser ranging is indexed with stepping |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621052515.7U CN206056536U (en) | 2016-09-13 | 2016-09-13 | Based on the belt wheel detecting system that laser ranging is indexed with stepping |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206056536U true CN206056536U (en) | 2017-03-29 |
Family
ID=58369739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621052515.7U Expired - Fee Related CN206056536U (en) | 2016-09-13 | 2016-09-13 | Based on the belt wheel detecting system that laser ranging is indexed with stepping |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206056536U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247996A (en) * | 2016-09-13 | 2016-12-21 | 安图实验仪器(郑州)有限公司 | Belt wheel detecting system based on laser ranging with stepping indexing |
-
2016
- 2016-09-13 CN CN201621052515.7U patent/CN206056536U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106247996A (en) * | 2016-09-13 | 2016-12-21 | 安图实验仪器(郑州)有限公司 | Belt wheel detecting system based on laser ranging with stepping indexing |
| CN106247996B (en) * | 2016-09-13 | 2019-04-19 | 安图实验仪器(郑州)有限公司 | Belt wheel detection system based on laser ranging and stepping indexing |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 Termination date: 20190913 |
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| CF01 | Termination of patent right due to non-payment of annual fee |