CN201629091U - Multifunctional grating signal processing device of numerically controlled machine for teaching - Google Patents
Multifunctional grating signal processing device of numerically controlled machine for teaching Download PDFInfo
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- CN201629091U CN201629091U CN2009202353214U CN200920235321U CN201629091U CN 201629091 U CN201629091 U CN 201629091U CN 2009202353214 U CN2009202353214 U CN 2009202353214U CN 200920235321 U CN200920235321 U CN 200920235321U CN 201629091 U CN201629091 U CN 201629091U
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Abstract
A multifunctional grating signal processing device of a numerically controlled machine for teaching comprises a linear scale (1), and is characterized in that an output of a reading head of the linear scale (1) is connected with an input end of a grating signal receiving module (2), one channel of an output of the grating signal receiving module (2) is sent into a signal transmitting module (3) and then sent into a numerical control system (4) to be used for a full closed loop experiment or training of the numerically controlled machine for teaching, and simultaneously another channel of the output of the grating signal receiving module (2) is sent into a signal processing module (5) to be processed and then transmitted to a computer (7) via a communication module (6), and positioning precision, resetting positioning precision, reverse difference value and original point resetting error value of actual displacement of the numerically controlled machine for teaching are sent into the numerical control system (4) to be controlled in a closed loop form and displayed on a display module (8) simultaneously. The multifunctional grating signal processing device can not only expand application field of grating but improve experimental items on the premise of not increasing equipment cost.
Description
Technical field
The utility model relates to a kind of teaching equipment, especially a kind of teaching numerically-controlled machine, specifically a kind of grating chi that utilizes replaces expensive laser interferometer to carry out the teaching numerically-controlled machine multitask grating signal processing apparatus that the linear position accuracy detection realizes closed-loop control.
Background technology
As everyone knows, the straight-line testing tool of general measure has: standard length linear standards, slip gauge, dial gauge, optical readings microscope and two-frequency laser interferometer etc. in groups.The standard length measurement is as the criterion with the measurement result of two-frequency laser interferometer again.The gyration testing tool has standard turntable or angle polyhedron, high precision circle grating and the parallel light tube etc. of 360 tooth precision indexings.General detector is a two-frequency laser interferometer at present.
The application of numerically-controlled machine is very extensive now, but safeguard in the teaching process work in Repairing of Numerically Controlled Machine Tool, running into needs accurately to measure servo motion (the coordinate setting precision of numerically-controlled machine, repetitive positioning accuracy, reverse difference, initial point return error etc.), generally be to utilize laser interferometer or reading microscope/special high-accuracy equipment such as metal lines chi to carry out, the very expensive and Installation and Debugging complexity of this type of equipment price is difficult for being extensive use of in the place to operate schools.To improve the purchase cost of school exponentially if use on imparting knowledge to students with numerically-controlled machine, therefore existing teaching does not all have the relevant detection function with numerically-controlled machine, has influenced the raising of quality of instruction.
Summary of the invention
The purpose of this utility model is not dispose because of the straight-line detection equipment cost is high with numerically-controlled machine at existing teaching comprehensively, influence the problem of quality of instruction, design a kind of grating chi that utilizes and replace expensive laser interferometer to carry out the linear position detection, thereby improve the teaching numerically-controlled machine multitask grating signal processing apparatus of experiential function.
The technical solution of the utility model is:
A kind of teaching numerically-controlled machine multitask grating signal processing apparatus, comprise grating chi 1, the output that it is characterized in that the read head of described grating chi 1 links to each other with the input end of grating signal receiver module 2, signal transmitting module 3 is sent in the output one tunnel of grating signal receiver module 2, send into experiment of full cut-off ring or the real training that is used in the digital control system 4 impart knowledge to students with numerically-controlled machine by signal transmitting module again, another roads output of grating signal receiver module 2 is sent into simultaneously that signal processing module 5 is handled and is sent in the computing machine 7 by communication module 6, calculates the bearing accuracy of teaching with the numerically-controlled machine actual displacement by computing machine 7, repetitive positioning accuracy, oppositely difference and initial point return error value are sent into and are carried out closed-loop control in the digital control system 4 and show on display module 8 simultaneously.
Described signal processing module 5 and communication module 6 carry out both-way communication.
Described signal processing module 5 also is connected with Keysheet module 9.
The beneficial effects of the utility model:
The utility model utilizes cheap grating chi to replace laser interferometer to realize the detection of numerically-controlled machine straight-line displacement precision, and has identical detection effect with laser interferometer, the application of grating chi has further been expanded in perfect experiential function under the prerequisite that does not increase cost.
Of the present utility model simple in structure, be easy to realize, required circuit all can utilize prior art to be realized, adopts ripe integrated package to be equipped with the detection that simple calculating and Control Software can realize the linear position precision that the former laser interferometer that needs hundreds of thousands unit can realize.
The utility model has been realized the multiple use of grating chi.A kind of is that grating chi signal feedback constitutes servo full cut-off ring control to digital control system, can finish the semiclosed loop and the teaching of full cut-off ring experimental real-training of numerically-controlled machine.A kind of is that grating chi signal feedback is given signal processing apparatus, finish accurate measurement mechanical motion thus, can finish every positional precision compensation (as backlash Compensation of Half, The compensation of pitch error etc., the detection means price of former this work is high and install numerous) experimental real-training teaching of numerically-controlled machine.
Description of drawings
Fig. 1 is a structured flowchart synoptic diagram of the present utility model.
Embodiment
Below in conjunction with drawings and Examples the utility model is further described.
As shown in Figure 1.
A kind of teaching numerically-controlled machine multitask grating signal processing apparatus, comprise grating chi 1, the output of the read head of described grating chi 1 links to each other with the input end of grating signal receiver module 2, signal transmitting module 3 is sent in the output one tunnel of grating signal receiver module 2, send into experiment of full cut-off ring or the real training that is used in the digital control system 4 impart knowledge to students with numerically-controlled machine by signal transmitting module again, another roads output of grating signal receiver module 2 is sent into simultaneously that signal processing module 5 is handled and is sent in the computing machine 7 by both-way communication module 6, calculates the bearing accuracy of teaching with the numerically-controlled machine actual displacement by computing machine 7, repetitive positioning accuracy, oppositely difference and initial point return error value are sent into and are carried out closed-loop control in the digital control system 4 and show on display module 8 simultaneously.The demonstration of signal processing module 5 and correlation parameter can be realized input by the Keysheet module 9 that is attached thereto.
Each functional module of present embodiment can adopt existing integrated circuits to be equipped with simple software and be realized, to those skilled in the art, need not creative work according to block diagram of the present utility model can be realized.
Principle of work of the present utility model is:
The grating chi is used for the actual displacement of detection mechanism, and the output signal of read head is sent into signal receiving module in the grating chi.Signal receiving module is divided into two the tunnel, the one tunnel with signal and directly signal is sent into signal transmitting module, that is to say grating chi signal former state is sent to digital control system, is used for the experiment of full cut-off ring or the real training of the teaching of numerical control at ordinary times; One the tunnel sends signal into signal processing module, the signal processing module chip microcontroller, and there is signal handler inside, and can automatically the record analysis of grating chi be preserved, and signal correction filtering can be calculated positional precision.Signal processing module connects with the communication module both-way communication, and the result of signal Processing is by this communication module and outside computing machine intercommunication.Computing machine reads back the data of grating chi, accuracy test technical conditions requirement according to lathe, data are carried out allocation degree, repetitive positioning accuracy, reverse difference, the initial point return error that statistical computation goes out actual displacement, and calculate the corresponding compensation modified value and generate the corresponding data file, can manually typing digital control system interior or by data transmission to digital control system.Display module shows the actual displacement situation of grating chi in real time.Keysheet module can carry out conversion to the display mode of display module and show that numerical value carries out clear operation.
The utility model does not relate to the part prior art that maybe can adopt all same as the prior art to be realized.
Claims (3)
1. a teaching is with numerically-controlled machine multitask grating signal processing apparatus, comprise grating chi (1), the output that it is characterized in that the read head of described grating chi (1) links to each other with the input end of grating signal receiver module (2), signal transmitting module (3) is sent in the output one tunnel of grating signal receiver module (2), send into experiment of full cut-off ring or the real training that is used in the digital control system (4) impart knowledge to students with numerically-controlled machine by signal transmitting module again, the output of another road of grating signal receiver module (2) is sent into simultaneously that signal processing module (5) is handled and is sent in the computing machine (7) by communication module (6), is calculated the bearing accuracy of teaching usefulness numerically-controlled machine actual displacement by computing machine (7), repetitive positioning accuracy, oppositely difference and initial point return error value are sent into and are carried out closed-loop control in the digital control system (4) and show on display module (8) simultaneously.
2. signal processing apparatus according to claim 1 is characterized in that described signal processing module (5) and communication module (6) carry out both-way communication.
3. signal processing apparatus according to claim 1 is characterized in that described signal processing module (5) also is connected with Keysheet module (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202353214U CN201629091U (en) | 2009-10-19 | 2009-10-19 | Multifunctional grating signal processing device of numerically controlled machine for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009202353214U CN201629091U (en) | 2009-10-19 | 2009-10-19 | Multifunctional grating signal processing device of numerically controlled machine for teaching |
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| Publication Number | Publication Date |
|---|---|
| CN201629091U true CN201629091U (en) | 2010-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2009202353214U Expired - Fee Related CN201629091U (en) | 2009-10-19 | 2009-10-19 | Multifunctional grating signal processing device of numerically controlled machine for teaching |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273382A (en) * | 2013-05-30 | 2013-09-04 | 中国科学院长春光学精密机械与物理研究所 | Reading device of grating ruler |
-
2009
- 2009-10-19 CN CN2009202353214U patent/CN201629091U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103273382A (en) * | 2013-05-30 | 2013-09-04 | 中国科学院长春光学精密机械与物理研究所 | Reading device of grating ruler |
| CN103273382B (en) * | 2013-05-30 | 2015-06-10 | 中国科学院长春光学精密机械与物理研究所 | Reading device of grating ruler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101110 Termination date: 20121019 |