CN108406011A - Compensation device is moved in machine laser detection Gear Processing size - Google Patents
Compensation device is moved in machine laser detection Gear Processing size Download PDFInfo
- Publication number
- CN108406011A CN108406011A CN201810113057.0A CN201810113057A CN108406011A CN 108406011 A CN108406011 A CN 108406011A CN 201810113057 A CN201810113057 A CN 201810113057A CN 108406011 A CN108406011 A CN 108406011A
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- China
- Prior art keywords
- operational amplifier
- connect
- output end
- acquisition modules
- displacement sensor
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Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23F—MAKING GEARS OR TOOTHED RACKS
- B23F23/00—Accessories or equipment combined with or arranged in, or specially designed to form part of, gear-cutting machines
- B23F23/10—Arrangements for compensating irregularities in drives or indexing mechanisms
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q11/00—Accessories fitted to machine tools for keeping tools or parts of the machine in good working condition or for cooling work; Safety devices specially combined with or arranged in, or specially adapted for use in connection with, machine tools
- B23Q11/0003—Arrangements for preventing undesired thermal effects on tools or parts of the machine
- B23Q11/0007—Arrangements for preventing undesired thermal effects on tools or parts of the machine by compensating occurring thermal dilations
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/20—Arrangements for observing, indicating or measuring on machine tools for indicating or measuring workpiece characteristics, e.g. contour, dimension, hardness
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
- B23Q17/00—Arrangements for observing, indicating or measuring on machine tools
- B23Q17/24—Arrangements for observing, indicating or measuring on machine tools using optics or electromagnetic waves
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Length Measuring Devices With Unspecified Measuring Means (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses compensation device is moved in machine laser detection Gear Processing size, belong to Technology of Precision Measurement field.The device includes laser displacement sensor, summing circuit, high speed voltage comparator, datum setup module and AD acquisition modules, the laser displacement sensor is used to carry out continuous scanning measurement to circumference of gear, ranging voltage signal is respectively fed in high speed voltage comparator and summing circuit by laser displacement sensor, high speed voltage comparator is connect with datum setup module, AD acquisition modules respectively, the summing circuit is connect with AD acquisition modules, and the AD acquisition modules are connect with machine tool numerical control system.The present invention uses precise laser ranging technology, and the laser head as ranging reference point uses fixed form, avoids the error of mechanical movement generation, and the cost that manufacture motion generates is greatly reduced.Reduce the requirement to installation environment position.
Description
Technical field
The invention belongs to Technology of Precision Measurement fields, are related to laser ranging technique, for the automatic compensation of gear machine processing
Technology, and in particular to move compensation device in machine laser detection Gear Processing size.
Background technology
Gear hobbing lathe in process, due to machine tool main body thermal deformation and tool wear, leads to the gear work of processing
Part generates reference diameter variation.
Since detection object is gear, there is shape special complexity, the prior art mostly to use contact position
Displacement sensor is detected the micro form and position of workpiece；Again due to high-resolution tangent displacement sensor detecting distance model
Enclose it is smaller, must additional detected mechanism kinematic driving device according to test environment concrete condition.Because micrometer device is to resetting
Precision has high requirement, causes the manufacturing cost of entire motion and detecting system high, and must also have properly
Space requirement.
Invention content
In view of this, the object of the present invention is to provide move compensation device in machine laser detection Gear Processing size.
It is realized the purpose of the present invention is technical solution in this way, in the dynamic compensation of machine laser detection Gear Processing size
Device, including laser displacement sensor, summing circuit, high speed voltage comparator, datum setup module and AD acquisition modules,
The laser displacement sensor is used to carry out continuous scanning measurement to circumference of gear, and laser displacement sensor is by ranging voltage signal
Be respectively fed in high speed voltage comparator and summing circuit, high speed voltage comparator respectively with datum setup module, AD
Acquisition module connects, and the summing circuit is connect with AD acquisition modules, and the AD acquisition modules are connect with machine tool numerical control system.
Further, further include heat distortion temperature compensating module, the heat distortion temperature compensating module connects with summing circuit.
Further, the summing circuit includes operational amplifier U2 and operational amplifier U1, the operational amplifier U2's
Positive input is grounded, and the reverse input end of operational amplifier U2 is connect through resistance R1 with the output end of operational amplifier U1, is transported
The output end for calculating amplifier U2 is connect with AD acquisition modules, the positive input and reverse input end of the operational amplifier U1 and
The output end of electric bridge connects, the parallel connection platinum resistance thermometer sensor, of two input terminals of electric bridge；The reverse input end of the operational amplifier U2 with
Parallel resistance RF between output end.
Further, the high speed voltage comparator includes operational amplifier U3, operational amplifier U4 and biconditional gate U5, institute
State the output end reversed input with the reverse input end of operational amplifier U3, operational amplifier U2 respectively of laser displacement sensor
End connection, the positive input of the operational amplifier U3 are connect with one of datum setup module output end, are transported
The output end for calculating amplifier U3 is connect with one of biconditional gate U5 input terminal, the reverse input end of operational amplifier U3 and
The reverse input end of operational amplifier U4 connects, and the positive input of operational amplifier U4 is another with datum setup module
A output end connection, the output end of operational amplifier U4 are connect with another input terminal of biconditional gate U5, the biconditional gate
Output end connect with AD acquisition modules；Two adjustable sides for increasing setup module with reference to electricity are connect with AD acquisition modules.
Further, which further includes LED1 and LED2, and the anode of the LED1 is respectively with operational amplifier U3's
Output end, the connection of AD acquisition modules；The anode of the LED2 connects with the output end of operational amplifier U4, AD acquisition modules respectively
It connects.
By adopting the above-described technical solution, the present invention has the advantage that：
The present invention uses precise laser ranging technology, and the laser head as ranging reference point uses fixed form, avoids
The cost that manufacture motion generates is greatly reduced in the error that mechanical movement generates.Reduce the requirement to installation environment position.
The present invention can carry out monitoring and the machined parameters amendment adjustment of workpiece privileged site size in process automatically, to ensure
The reference diameter undulate quantity of gear part is processed within control accuracy range.
Description of the drawings
To make the objectives, technical solutions, and advantages of the present invention clearer, below in conjunction with attached drawing to the present invention make into
The detailed description of one step, wherein：
Fig. 1 is HL-G103 miniature laser rangefinder technical parameters；
Fig. 2 is laser test system placement scheme；
Fig. 3 is data acquisition process flow chart；
Fig. 4 is that circular scanning method acquires gullet depth, and the angular speed of gear rotation should meet tooth socket center effective width pair
It is corresponding reference voltage position set-point to celebrate A, B point in A/D module acquisition rate associated technical parameters requirement, figure；
Fig. 5 is that gear acquisition position area reference voltage position set-point and comparator export logic chart；
Fig. 6 is that circular scanning acquires gullet depth functional block diagram；
Fig. 7 is AD trigger collection patterns.
Specific implementation mode
Below with reference to attached drawing, the preferred embodiment of the present invention is described in detail；It should be appreciated that preferred embodiment
Only for illustrating the present invention, the protection domain being not intended to be limiting of the invention.
Fig. 1 is HL-G103 miniature laser rangefinder technical parameters；Fig. 3 is data acquisition process flow chart；Fig. 7 adopts for AD
Collect triggering pattern.As shown in Figure 2,6, machine laser detection Gear Processing size move compensation device, including laser displacement sensor,
Summing circuit, high speed voltage comparator, datum setup module and AD acquisition modules, the laser displacement sensor for pair
Circumference of gear carries out continuous scanning measurement, and ranging voltage signal is respectively fed to high speed voltage comparator by laser displacement sensor
In summing circuit, high speed voltage comparator is connect with datum setup module, AD acquisition modules respectively, the summing circuit
It is connect with AD acquisition modules, the AD acquisition modules are connect with machine tool numerical control system.
Further include heat distortion temperature compensating module as a further modification of the present embodiment, the heat distortion temperature compensating module
Connect with summing circuit.
In the present invention, the summing circuit includes operational amplifier U2 and operational amplifier U1, the operational amplifier
The positive input of U2 is grounded, and the reverse input end of operational amplifier U2 connects through the output end of resistance R1 and operational amplifier U1
It connects, the output end of operational amplifier U2 is connect with AD acquisition modules, the positive input of the operational amplifier U1 and reversed defeated
The output end for entering end and electric bridge connects, the parallel connection platinum resistance thermometer sensor, of two input terminals of electric bridge；The operational amplifier U2's is reversed defeated
Enter parallel resistance RF between end and output end.
In the present invention, the high speed voltage comparator includes operational amplifier U3, operational amplifier U4 and biconditional gate
U5, the output end of the laser displacement sensor respectively with the reverse input end of operational amplifier U3, operational amplifier U2 it is anti-
It is connected to input terminal, one of the positive input of the operational amplifier U3 and datum setup module output end connect
It connects, the output end of operational amplifier U3 is connect with one of biconditional gate U5 input terminal, and operational amplifier U3's is reversed defeated
Enter end to connect with the reverse input end of operational amplifier U4, positive input and the datum setup module of operational amplifier U4
Another output end connection, the output end of operational amplifier U4 is connect with another input terminal of biconditional gate U5, described different
The output end of nor gate is connect with AD acquisition modules；Two adjustable sides and the AD acquisition modules company for increasing setup module with reference to electricity
It connects.
In the present invention, two reference voltages A, B are set, corresponds to two output ends of reference voltage setup module, adopts
With two reference voltages of A, B, it is compared respectively with the position analog signal voltage of each position output of gear, and patrolled with exclusive or
The method for judging tooth slot position is collected, determines that data acquiring location point is limited to the tooth groove root of tested gear, is conducive to reduce interference range
Data collection capacity is reduced in domain, reduces the requirement of capture card memory headroom.Gear acquisition position area reference voltage position set-point and ratio
It is as shown in Figure 5 compared with device output logic chart.In the present embodiment, reference voltage, to comply fully with the gear of specification through circular scanning
The voltage corresponding to gullet depth that method determines.
In the present invention, which further includes LED1 and LED2, the anode of the LED1 respectively with operational amplifier
The output end of U3, the connection of AD acquisition modules；The LED2 anode respectively with the output end of operational amplifier U4, AD acquisition modules
Connection.
In Fig. 6, WRa adjusts tooth top reference voltage；WRb adjusts tooth socket reference voltage；AI+, AI- are acquisition Differential Input
End；AI GND are simulation ground.U1 exports the negative voltage of corresponding temperature；U2 will be sent into AD after ranging voltage and the summation of thermal deformation voltage
Acquisition module；Output space width acquires square-wave pulse after U3, U4 are exported logic exclusive or non-exclusive by U5.Gathered data is passed through USB port
Enter machine tool numerical control system, digital control system starts AD acquisition instructions also by USB port.
System using acquisition module D A fuction outputs analog voltage as comparator reference voltage.To 2 points of A, B in Fig. 4
Voltage value uses exports scanning voltage by AO0 and AO1 simulation mouths from low to high, and uses U3 and U4 to capture two point of A, B respectively
It sets, position signal confirms 2 output voltage values of A, B from DI0, DI1 return system.Also WRa and WRb is determined in adjustable figure 6
A, the voltage value of B points is confirmed by observing LED1, LED2 state.
Reference voltage is compared by the present invention with the voltage that laser displacement sensor exports, and comparison result is sent to machine
Bed digital control system, digital control system are adjusted control parameter according to comparison result, ensure the precision of processing.
In the present invention, gullet depth average value is taken, influence of the workpiece radial disbalance to testing result is eliminated.
In the present invention, laser displacement sensor position is fixed, and ensures that resetting position is constant.
In the present invention, using temperature compensation means, reduce with reference to basic influence of thermal deformation.
The foregoing is merely the preferred embodiment of the present invention, are not intended to restrict the invention, it is clear that those skilled in the art
Various changes and modifications can be made to the invention by member without departing from the spirit and scope of the present invention.If in this way, the present invention
Within the scope of the claims of the present invention and its equivalent technology, then the present invention is also intended to include these these modifications and variations
Including modification and variation.
Claims (5)
1. moving compensation device in machine laser detection Gear Processing size, it is characterised in that：Including laser displacement sensor, summation electricity
Road, high speed voltage comparator, datum setup module and AD acquisition modules, the laser displacement sensor are used to justify gear
Zhou Jinhang continuous scannings measure, and ranging voltage signal is respectively fed to high speed voltage comparator and summation by laser displacement sensor
In circuit, high speed voltage comparator is connect with datum setup module, AD acquisition modules respectively, and the summing circuit is adopted with AD
Collect module connection, the AD acquisition modules are connect with machine tool numerical control system.
2. according to claim 1 move compensation device in machine laser detection Gear Processing size, it is characterised in that：Further include
Heat distortion temperature compensating module, the heat distortion temperature compensating module connect with summing circuit.
3. according to claim 2 move compensation device in machine laser detection Gear Processing size, it is characterised in that：It is described to ask
Include the positive input ground connection of operational amplifier U2 and operational amplifier U1, the operational amplifier U2 with circuit, operation is put
The reverse input end of big device U2 is connect through resistance R1 with the output end of operational amplifier U1, the output end and AD of operational amplifier U2
Acquisition module connects, positive input and the output end of reverse input end and the electric bridge connection of the operational amplifier U1, electric bridge
Two input terminals parallel connection platinum resistance thermometer sensor,；Parallel resistance RF between the reverse input end and output end of the operational amplifier U2.
4. according to claim 2 move compensation device in machine laser detection Gear Processing size, it is characterised in that：The height
Fast voltage comparator includes operational amplifier U3, operational amplifier U4 and biconditional gate U5, the laser displacement sensor it is defeated
Outlet is connect with the reverse input end of the reverse input end of operational amplifier U3, operational amplifier U2 respectively, the operation amplifier
The positive input of device U3 is connect with one of datum setup module output end, the output end of operational amplifier U3 with
One of biconditional gate U5 input terminals connect, and the reverse input end of operational amplifier U3 is reversed defeated with operational amplifier U4's
Enter end connection, the positive input of operational amplifier U4 is connect with another output end of datum setup module, and operation is put
The output end of big device U4 is connect with another input terminal of biconditional gate U5, output end and the AD acquisition modules of the biconditional gate
Connection；Two adjustable sides for increasing setup module with reference to electricity are connect with AD acquisition modules.
5. according to claim 4 move compensation device in machine laser detection Gear Processing size, it is characterised in that：The compensation
Device further includes LED1 and LED2, and the anode of the LED1 is connect with the output end of operational amplifier U3, AD acquisition modules respectively；
The anode of the LED2 is connect with the output end of operational amplifier U4, AD acquisition modules respectively.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810113057.0A CN108406011A (en) | 2018-02-05 | 2018-02-05 | Compensation device is moved in machine laser detection Gear Processing size |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810113057.0A CN108406011A (en) | 2018-02-05 | 2018-02-05 | Compensation device is moved in machine laser detection Gear Processing size |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108406011A true CN108406011A (en) | 2018-08-17 |
Family
ID=63127153
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810113057.0A Pending CN108406011A (en) | 2018-02-05 | 2018-02-05 | Compensation device is moved in machine laser detection Gear Processing size |
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| Country | Link |
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Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1248933A (en) * | 1997-03-06 | 2000-03-29 | 自动化焊接系统公司 | Multiple beam laser welding apparatus |
| CN101324694A (en) * | 2008-07-28 | 2008-12-17 | 重庆大学 | Flight light path mechanism for automatically regulating focusing parameter |
| CN101372069A (en) * | 2008-08-15 | 2009-02-25 | 东莞华中科技大学制造工程研究院 | Integrated type laser welding and measurement integrated device |
| CN103196873A (en) * | 2013-03-06 | 2013-07-10 | 东南大学 | Detection imaging system based on laser scanning |
| CN106483928A (en) * | 2017-01-03 | 2017-03-08 | 重庆大学 | A kind of dry chain digital control gear hobbing machine bed radial heat distortion error of cutting is in machine real-time compensation method |
| CN106736848A (en) * | 2016-12-13 | 2017-05-31 | 西安交通大学 | Numerically controlled lathe Thermal Error measures compensation system and compensation method |
| CN106862975A (en) * | 2017-02-20 | 2017-06-20 | 重庆机床(集团)有限责任公司 | A kind of laser is automatic to tooth method |
-
2018
- 2018-02-05 CN CN201810113057.0A patent/CN108406011A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1248933A (en) * | 1997-03-06 | 2000-03-29 | 自动化焊接系统公司 | Multiple beam laser welding apparatus |
| CN101324694A (en) * | 2008-07-28 | 2008-12-17 | 重庆大学 | Flight light path mechanism for automatically regulating focusing parameter |
| CN101372069A (en) * | 2008-08-15 | 2009-02-25 | 东莞华中科技大学制造工程研究院 | Integrated type laser welding and measurement integrated device |
| CN103196873A (en) * | 2013-03-06 | 2013-07-10 | 东南大学 | Detection imaging system based on laser scanning |
| CN106736848A (en) * | 2016-12-13 | 2017-05-31 | 西安交通大学 | Numerically controlled lathe Thermal Error measures compensation system and compensation method |
| CN106483928A (en) * | 2017-01-03 | 2017-03-08 | 重庆大学 | A kind of dry chain digital control gear hobbing machine bed radial heat distortion error of cutting is in machine real-time compensation method |
| CN106862975A (en) * | 2017-02-20 | 2017-06-20 | 重庆机床(集团)有限责任公司 | A kind of laser is automatic to tooth method |
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