CN203364865U - Tester for zero position of encoder - Google Patents
Tester for zero position of encoder Download PDFInfo
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- CN203364865U CN203364865U CN 201320346652 CN201320346652U CN203364865U CN 203364865 U CN203364865 U CN 203364865U CN 201320346652 CN201320346652 CN 201320346652 CN 201320346652 U CN201320346652 U CN 201320346652U CN 203364865 U CN203364865 U CN 203364865U
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Abstract
The utility model relates to a tester for a zero position of an encoder. The tester includes an input terminal connected to a signal terminal of an incremental rotary encoder. The input terminal is connected to a trigger. The trigger is connected to a pre-amplifier. The pre-amplifier is connected to a power amplifier. The power amplifier is connected to an indicator. The trigger, the pre-amplifier, the power amplifier and the indicator are connected to a power supply. The power supply is also connected to a power supply terminal supplying power for the incremental rotary encoder. According to the utility model, by use of a simple trigger detection method, a zero position pulse signal of the incremental rotary encoder is manually detected; the tester is simple in structure and low in cost; the whole testing and operating process is so simple, that a non-professional electrical technician ignorant of the principle can also complete positioning of a zero point freely; efficiency is improved; and costs are reduced.
Description
Technical field
The utility model relates to a kind of scrambler zero testing instrument, is a kind of electronic test equipment of electromechanical equipment, is a kind of for to carry out the equipment of zero testing with servo-controlled mechanical automation equipment.
Background technology
Rotary encoder is a kind of sensor that detects the servomotor anglec of rotation that is specifically designed to, along with servo-controlled development, its application is that high precision is controlled one of indispensable components and parts, in servocontrol setting movement, synchro control, Multi-axis coordinated motion, to the definite of zero-bit, be machine one of topmost work in dynamo-electric installation process.Every circle of servomotor turning axle rotates, and incremental encoder provides the pulse of some.Periodically the step-by-step counting in measurement or unit interval can be used for measuring mobile speed.If added up at a reference point subsequent pulse number, calculated value has just represented the parameter of rotational angle or stroke.Between dual pass encoding device output pulse, differing is 90 °.Can make the rotary inductive signal of the electronic equipment receiving axes of received pulse, therefore can be used to realize two-way positioning control.Each circle of incremental-rotating coder produces a pulse Z who is referred to as zero signal.In with the speed reducing machinery structure, when incremental-rotating coder is synchronizeed with motor, the mechanical load rotation is during a period of motion, more than one Z pulse signal may be arranged, and this just requires null pick-up mechanically and the Z pulse signal of incremental-rotating coder to overlap to determine the zero-bit of machine.A variety of for machine positioned zero point methods, wherein the method for simple and fast, be at the beginning of machine is installed, and when the positioning mechanical null pick-up, just the zero pulse Z signal of scrambler unified to determine the zero-bit of machine.Often ran into before electrical system does not have normal power supply, can't determine zero-bit, even, after system powers on, while determining zero-bit, mechanically also will readjust setting angle.When maintenance in the future and mechanical zero skew, must there be professional electrical technology personnel again for machine, to locate zero-bit, this obviously can bring the waste of a lot of inconvenience and fund, human and material resources.
Summary of the invention
In order to overcome the problem of prior art, the utility model proposes a kind of scrambler zero testing instrument.Described tester, at the beginning of the machine location, is just accurately tested the zero-bit of incremental-rotating coder, determines unification the location of incremental-rotating coder and mechanical zero.
The purpose of this utility model is achieved in that a kind of scrambler zero testing instrument, described tester comprises: the input terminal be connected with the incremental-rotating coder signal end, described input terminal is connected with trigger, described trigger is connected with prime amplifier, described prime amplifier is connected with power amplifier, and described power amplifier is connected with indicator; Described trigger, prime amplifier, power amplifier, indicator are connected with power supply, and described power supply also is connected with the power supply terminal of supplying with the incremental-rotating coder power supply.
The beneficial effect that the utility model produces is: the utility model adopts simple detection trigger mode manually to detect the zero pulse signal of incremental-rotating coder, detector is simple for structure, cheap, whole test and operating process are very simple, even be ignorant of the amateur electrical apparatus technology personnel of principle, also can freely complete the location operation at zero point, improve work efficiency, reduced cost.
The accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Fig. 1 is the system schematic that the described method of embodiment mono-of the present utility model is used;
Fig. 2 is the theory diagram of embodiment bis-described testers of the present utility model;
Fig. 3 is the circuit theory diagrams of embodiment tri-described testers of the present utility model.
Embodiment
Embodiment mono-:
The present embodiment is a kind of scrambler zero testing method, the system that described method is used comprises: be arranged on servomotor 8 on plant equipment and servomotor controller 4, mechanical zero sensor 3, incremental-rotating coder 7, scrambler zero testing instrument 6, breakout box 5, as shown in Figure 1.
The described plant equipment of the present embodiment can be the automatic control equipment of various use servomotors, for example: printing machine, Raw material processing machine, food processor etc.Under normal conditions, these equipment, in operational process, have an operation starting point, or claim starting point, for example: a boxboard starting point of die-cutting machine; The starting point of a printed sheet of printing machine, and the positioning accuracy request of these equipment is not very high.Shown in Fig. 1 is the schematic diagram that a kind of servomotor is controlled the printing machine of running, and in figure, print roller 1 is connected with servomotor by one group of gear 9 with paper supporting roller 2.Under the printing machine duty, incremental-rotating coder and servomotor are coaxial, or are in transmission connection, and the shell of incremental-rotating coder is fixed, and incremental-rotating coder is electrically connected to by breakout box with servomotor controller simultaneously.Under measuring state, incremental-rotating coder even is electrically connected to and connects with scrambler zero testing instrument by breakout box, at this moment the pivot of the pivot of incremental-rotating coder and servomotor is fixed, but the incremental-rotating coder shell can rotate, in order to determine zero-bit.
Described servomotor and servomotor controller can be general servomotor and servomotor controllers, for plant equipment transmission or controlled motion.
Described mechanical zero sensor is mounted in a kind of sensor of determining equipment moving component physical position that is specifically designed on plant equipment, can be angle displacement sensor, can be also linear movement pick-up.The form of sensor can be photoelectric sensor, can be also electromagnetism or Hall element, and in a word, the sensor that the displacement of equipment moving parts can be converted to electric signal can use.
Described incremental-rotating coder can be photo-electric shaft angle type incremental encoder, or the shaft angle incremental encoder of other types, exports the rotary-type sensor that relative angle changes electric signal.
Shown breakout box is actual is exactly the switch of a single-pole double-throw (SPDT) or dpdt double-pole double-throw (DPDT), and its effect is optionally incremental-rotating coder to be electrically connected to servomotor or scrambler zero testing instrument.Also can not use breakout box, test is directly scrambler zero testing instrument to be connected with incremental-rotating coder, and normal operation is that incremental-rotating coder is disconnected and being connected of scrambler zero testing instrument, and then directly with servomotor controller, is connected.
Described scrambler zero testing instrument is a kind of instrument of measuring the incremental encoder zero-bit that is specifically designed to.This instrument is not used in the instrument of conventional incremental encoder zero-bit, makes the zero-bit of definite incremental encoder that amateur electric personnel can be easy under manual case.
The step of the described method of the present embodiment is specific as follows:
The step that machinery makes zero: the zero-bit that is placed on setting for the movement position by plant equipment.The movement position zero-bit of plant equipment, for example be generally, a starting point: on die-cutting machine, boxboard enters the position of die-cutting machine, by equipment downtime on this starting point.
The step that the mechanical zero sensor makes zero: for the zero-bit by mechanical zero sensor alignment plant equipment movement position.Due to previous step by equipment downtime on starting point; starting point that just can be using whole break point as equipment, then be fixed on the mechanical zero sensor on this break point, if not this equipment, installs for the first time; but the maintenance of this equipment, above-mentioned two steps can not carried out.Because the starting point of this equipment is determined.
The step of mechanical connection: for the pivot by incremental-rotating coder and the coaxial mechanical connection of the pivot of servomotor, make the pivot of incremental-rotating coder consistent with the angle that the pivot of servomotor rotates.The described mechanical connection of this step is mainly the servomotor pivot and being connected of the pivot of incremental-rotating coder, and this connection should be determined according to the design of field apparatus, can directly coaxially connect, and also can connect by shaft coupling or reduction gear.At this moment because plant equipment is shut down on zero-bit; and by the mechanical zero sensor settings zero-bit; the pivot of servomotor is also on a definite position; therefore, by the pivot mechanical connection of the pivot of incremental-rotating coder and servomotor, make the pivot of incremental-rotating coder also on a definite position; yet where at this time can not determine the zero-bit of incremental-rotating coder; therefore, in this time, the shell of incremental-rotating coder can't be located.
The step of connecting test instrument: for scrambler zero testing instrument is connected by breakout box with the incremental-rotating coder electricity, and open the power supply of scrambler zero testing instrument, with the power supply of scrambler zero testing instrument, supply with incremental-rotating coder.The described scrambler zero testing of the present embodiment instrument has two terminals, one is the Z signal output part that connects scrambler zero testing instrument, one is the power supply that connects scrambler zero testing instrument, the power supply that is incremental-rotating coder is supplied with by scrambler zero testing instrument, when scrambler zero testing instrument power switch is opened, incremental-rotating coder is also in there being the state of Power supply, and output electrical signals, also comprise output Z signal certainly normally.
Detect the step of incremental-rotating coder zero-bit: for the shell of manual rotation incremental-rotating coder, with scrambler zero testing instrument, detect the incremental-rotating coder zero signal.There is trigger in scrambler zero testing instrument, in the time of manual rotation incremental-rotating coder shell, (at this moment the pivot of increment of rotation type rotary encoder and servomotor pivot link together, and at this moment servomotor stops operating, so, the pivot of incremental-rotating coder is also motionless), incremental-rotating coder is exported a Z signal (zero signal) in position, this zero signal triggers the trigger in scrambler zero testing instrument, after being exaggerated, trigger pip shows in the indicator of scrambler zero testing instrument, for example pilot lamp flashes, mean the output of zero signal, can find the output point of zero signal on the incremental-rotating coder shell of incremental-rotating coder with this.
Confirm the step of incremental-rotating coder zero-bit: near the manual shell of the increment of rotation type rotary encoder repeatedly zero signal detected, to confirm the position of zero signal.This step is the output point of zero signal on the incremental-rotating coder shell in order to confirm incremental-rotating coder, and rotates back and forth the shell of incremental-rotating coder on this output point.
The step of fixed increment type rotary encoder: the shell for incremental-rotating coder is fixed, and to determine incremental-rotating coder and servomotor, coaxially turns round.Due to, during measurement, the shell of incremental-rotating coder is freely, so can find the output point of zero-bit.Once, to a zero-bit output point, just the enclosure location of zero-bit output point can be fixed.After enclosure location is fixing, the zero-bit output point of incremental-rotating coder has just been fixed with the zero-bit of plant equipment.
The step be electrically connected to: for breakout box being disconnected to being electrically connected to of incremental-rotating coder and scrambler zero testing instrument, breakout box is electrically connected to incremental-rotating coder with the controller of servomotor.When incremental-rotating coder with after servomotor controller is electrically connected to, the Z signal that incremental-rotating coder is exported is transferred to servomotor controller, makes servomotor controller that zero-bit on zero-bit (being provided by the mechanical zero sensor) on plant equipment and incremental-rotating coder can be provided.
Confirm the step of zero-bit: for opening servomotor controller, the plant machinery zero-bit that the operation servomotor controller is detected with confirmation mechanical zero sensor is consistent with the zero-bit of incremental-rotating coder.When with machinery with after electrical equipment all has been connected, can start plant equipment, finally confirm that the zero-bit three of zero-bit, incremental-rotating coder of zero-bit, the mechanical zero sensor of plant equipment is successfully corresponding.
Embodiment bis-:
The present embodiment is the scrambler zero testing instrument used in the described method of embodiment mono-, and theory diagram is shown in Fig. 2.The described tester of the present embodiment comprises: with the incremental-rotating coder signal end, be connected input terminal, described input terminal is connected with trigger, described trigger is connected with prime amplifier, described prime amplifier is connected with power amplifier, and described power amplifier is connected with indicator; Described trigger, prime amplifier, power amplifier, indicator are connected with power supply, and described power supply also is connected with the power supply terminal of supplying with the incremental-rotating coder power supply.
The principle of the present embodiment is to input the Z signal of incremental-rotating coder signal by input terminal, utilizes the Z signal to make trigger, produces the trigger pip stronger than Z signal, afterwards trigger pip is carried out to the two-stage amplification, makes the intensity of signal be enough to promote indicator.
Trigger, prime amplifier, power amplifier, power supply can be used various corresponding integrated circuit (IC) chip or amplifier tube.
Described indicator can use incandescent lamp, or the LED lamp, and other can express and open or close, or the simple displaying device of 0 or 1 two states.
Embodiment tri-:
The present embodiment is the improvement of embodiment bis-, is the circuit theory that realizes embodiment bis-described testers, and circuit theory diagrams are shown in Fig. 3.The flip chip of the described trigger of the present embodiment is DS8923AJ, the amplification chip of described prime amplifier is 74HC123, the amplifier tube of described power amplifier is ADC0816, and the power supply chip of described power supply is LM317, and described indicator is a kind of in incandescent lamp, LED lamp.
The present embodiment adopts the 9V powered battery, and becoming 5V after voltage stabilizing can power to scrambler, can provide self chip power simultaneously.Adopting LM317 is one of power IC be most widely used, and it not only has the simple form of fixed three-terminal voltage-stabilizing circuit, possesses again the adjustable characteristics of output voltage.In addition, also have that range of regulation is wide, voltage regulation performance good, noise is low, Ripple Suppression compares advantages of higher.
The scrambler zero signal is fainter, and pulse high level is very narrow, can not drive pilot lamp, determine its position, must be through the DS8923AJ flip flop equipment, the rising edge of positive zero signal and negative zero position signal negative edge trigger D1, through R1, tentatively amplify output signal.
After the preliminary amplification of DS8923AJ flip flop equipment, then pass through the further amplifying signal of 74HC123 amplifier, so that this signal driver ADC0816 triode is lighted pilot lamp, determine zero signal.
Finally it should be noted that, below only unrestricted in order to the technical solution of the utility model to be described, although with reference to the preferred arrangement scheme, the utility model is had been described in detail, those of ordinary skill in the art is to be understood that, can modify or be equal to replacement the technical solution of the utility model (such as the sequencing of detecting step, the circuit theory of tester etc.), and not break away from the spirit and scope of technical solutions of the utility model.
Claims (6)
1. a scrambler zero testing instrument, it is characterized in that, comprise: the input terminal be connected with the incremental-rotating coder signal end, described input terminal is connected with trigger, described trigger is connected with prime amplifier, described prime amplifier is connected with power amplifier, and described power amplifier is connected with indicator; Described trigger, prime amplifier, power amplifier, indicator are connected with power supply, and described power supply also is connected with the power supply terminal of supplying with the incremental-rotating coder power supply.
2. scrambler zero testing instrument according to claim 1, is characterized in that, the flip chip of described trigger is DS8923AJ.
3. scrambler zero testing instrument according to claim 2, is characterized in that, the amplification chip of described prime amplifier is 74HC123.
4. scrambler zero testing instrument according to claim 3, is characterized in that, the amplifier tube of described power amplifier is ADC0816.
5. according to the described scrambler zero testing of one of claim 1-4 instrument, it is characterized in that, the power supply chip of described power supply is LM317.
6. scrambler zero testing instrument according to claim 1, is characterized in that, described indicator is a kind of in incandescent lamp, LED lamp.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320346652 CN203364865U (en) | 2013-06-17 | 2013-06-17 | Tester for zero position of encoder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320346652 CN203364865U (en) | 2013-06-17 | 2013-06-17 | Tester for zero position of encoder |
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| Publication Number | Publication Date |
|---|---|
| CN203364865U true CN203364865U (en) | 2013-12-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320346652 Expired - Fee Related CN203364865U (en) | 2013-06-17 | 2013-06-17 | Tester for zero position of encoder |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292837A (en) * | 2013-06-17 | 2013-09-11 | 北京万源多贝克包装印刷机械有限公司 | Encoder zero position testing method and instrument |
| CN103791929A (en) * | 2014-01-23 | 2014-05-14 | 张明兴 | Circuit structure for outputting zero pulses in absolute type encoder |
| CN111811448A (en) * | 2020-07-27 | 2020-10-23 | 延锋伟世通汽车电子有限公司 | Motor mechanical zero-position double-hole testing device and method |
| CN111811544A (en) * | 2020-07-09 | 2020-10-23 | 赛卓微电子(深圳)有限公司 | Method for zeroing incremental encoder IC |
-
2013
- 2013-06-17 CN CN 201320346652 patent/CN203364865U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103292837A (en) * | 2013-06-17 | 2013-09-11 | 北京万源多贝克包装印刷机械有限公司 | Encoder zero position testing method and instrument |
| CN103292837B (en) * | 2013-06-17 | 2016-05-18 | 北京万源多贝克包装印刷机械有限公司 | A kind of encoder zero testing method and tester |
| CN103791929A (en) * | 2014-01-23 | 2014-05-14 | 张明兴 | Circuit structure for outputting zero pulses in absolute type encoder |
| CN111811544A (en) * | 2020-07-09 | 2020-10-23 | 赛卓微电子(深圳)有限公司 | Method for zeroing incremental encoder IC |
| CN111811544B (en) * | 2020-07-09 | 2022-05-06 | 赛卓微电子(深圳)有限公司 | Method for zeroing incremental encoder IC |
| CN111811448A (en) * | 2020-07-27 | 2020-10-23 | 延锋伟世通汽车电子有限公司 | Motor mechanical zero-position double-hole testing device and method |
| CN111811448B (en) * | 2020-07-27 | 2021-10-22 | 延锋伟世通汽车电子有限公司 | Motor mechanical zero-position double-hole testing device and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131225 Termination date: 20170617 |