CN103716015A

CN103716015A - Vibration resistance incremental electronic pulse generator

Info

Publication number: CN103716015A
Application number: CN201210443953.6A
Authority: CN
Inventors: 余冠军
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-11-08
Filing date: 2012-11-08
Publication date: 2014-04-09

Abstract

The invention discloses a vibration resistance incremental electronic pulse generator. The vibration resistance incremental electronic pulse generator comprises a jump ring. A needle roller is arranged beside the jump ring; the two side edges of the needle roller are provided with a baffle plate groove; the needle roller is engaged with a gear; the center of the gear is provided with a rotating shaft higher than the surface of the gear; the gear is sleeved on the upper portion of the rotating shaft; a moving raster sheet is sleeved on the lower portion of the rotating shaft; an integral optical coupler with an emission receiving device is disposed between the gear and the moving raster sheet; and the integral optical coupler is connected with a signal conversion output device. The vibration resistance incremental electronic pulse generator also comprises a single-chip microcomputer. The single-chip microcomputer (core program) is a key to controlling the pulse generator to accurately emit pulses. The advantages are as follows: during a use process of the generator, the pluses are not generated in case of vibration shaking (mechanical oscillation, shaking back and forth of human hands (a distance between two clicking points)); and the pulses are correctly generated in case of electromagnetic interference.

Description

Anti-vibration increment type electronic impulser

Technical field

The present invention relates to a kind of pulse generator, particularly a kind of increment type electronic impulser.

Background technology

Original generator is mechanical trigger-type completely, by directly exporting corresponding signal from corresponding port after photoelectric tube and grating effect, the signal of output is not done any verification, intervened and process, to such an extent as to there is signal to send should not send signal time, while needing signal to send, the situation of sending out signal wrong.The following several phenomenons of main manifestations: 1, generator pulsing (displacement data is being beated) in the process with some vibrations of lathe; 2, discovery data are being beated, and with generator under hand intervention, data stop beating.Cause the above-mentioned factor that affects precision mainly: the external diameter of needle roller and the internal diameter of baffle plate groove can not fit like a glove, and have the gap of small distance; Optocoupler can not fit like a glove with electric discharge optocoupler groove; The technologic defect that gear product is produced; The precision of grating on producing; Grating and axle concentric with body on the concentric problem of location hole; The concentricity problem of rotating shaft two bearings; Error on manual assembly; Extraneous electromagnetic interference, causes the unsteadiness of signal; The impact of extraneous weather, human factor, the destruction (distortion) of causing generator internal physical characteristic.

As shown in Fig. 1-1, Fig. 1-2, machining accuracy, the impact of assembling factor on precision, jump ring 1 needle roller 2 external diameters and baffle plate groove 3 difference in internal diameters distances are below larger, the amplitude just generator being swung is just larger, just larger to the interval effect of the KC on Fig. 1-2, such consequence is that the high-frequency signal of A phase or B phase can be in this interval appearance, so that rub-out signal is sent, generator in use needle roller can wear and tear gradually, this interval will become larger so, like this generator rock larger so that the generator probability of makeing mistakes becomes larger.

As shown in Figure 2, the impact of outside electromagnetic interference reason on precision, in figure, can see that dotted line is exactly the interference signal (a.b two-phase pulse signal) of Liang Tiao circle, if generator is motionless or very little vibration occurs or rock, capital thinks that generator has sent signal, makes the equipment of its driving will be subject to very serious impact.

Summary of the invention

For above-mentioned the deficiencies in the prior art, the invention provides a kind of anti-vibration increment type electronic impulser.

To achieve these goals, the technical solution used in the present invention is:

Anti-vibration increment type electronic impulser, the side that comprises jump ring, jump ring is provided with needle roller, the dual-side of needle roller is provided with baffle plate groove, needle roller and gear engagement, the center of gear is provided with the rotating shaft above gear surface, in rotating shaft, square set has gear, lower square set has lenticular lenses, and between gear and moving lenticular lenses, be provided with the whole optocoupler with sending and receiving apparatus, whole optocoupler is connected with signal conversion output apparatus, also comprise single-chip microcomputer, single-chip microcomputer (kernel program) is the key that clamp-pulse generator accurately sends pulse.

Beneficial effect of the present invention: in the use procedure of generator as vibration rock (the rocking back and forth of mechanical oscillation, staff (distances between 2 clickly points)) not pulsing; Correct pulsing in the situation that of electromagnetic interference.

Accompanying drawing explanation

Fig. 1-1st, the structural representation of existing generator;

Fig. 1-2 is machining accuracy and the pulse signal figure of assembling on existing generator impact;

Fig. 2 is the pulse signal figure of outside electromagnetic interference on existing generator impact;

Fig. 3 is structure vertical view of the present invention;

Fig. 4 is the structure left view of invention;

Fig. 5 is pulse signal figure of the present invention.

Embodiment

Anti-vibration increment type electronic impulser, the side that comprises jump ring 1, jump ring 1 is provided with needle roller 2, the dual-side of needle roller 2 is provided with baffle plate groove 3, needle roller 2 and gear 4 engagements, the center of gear 4 is provided with above the rotating shaft 7 on gear 4 surfaces, in rotating shaft 7, square set has gear 4, lower square set has lenticular lenses 5, and between gear 4 and moving lenticular lenses 5, be provided with the whole optocoupler 6 with sending and receiving apparatus, whole optocoupler 6 is electrically connected to signal conversion output apparatus 8, also comprise single-chip microcomputer, the distance s between Single-chip Controlling needle roller 2 and baffle plate groove 3 is less than the stop distance KC of position of generator two.

Encoder is mainly by code-disc (circle grating, indication grating), body, luminescent device, the parts such as sensor devices or whole light are even form, when generator is to (adding up clockwise clockwise or counterclockwise, while counterclockwise regressive) rotating lattice (having clickly some sound), send 1 A phase, 1 B phase and the pulse of 1 Z phase, the phase difference of a-signal and B signal is 90 degree each other, and Z is mutually for often turning a pulse, for datum mark location, when generator each when slack A and B signal simultaneously in low electricity state (00) frequently, when generator rotates a circle, generator will send 100 A and B and Z signal.Clickly some position (position that generator stops): a, b, c, d=p/4+p/8.Encoder applies of the present invention is extensive, such as: the accurate measurement of length and angle; Figure tracking displacement synchronous compares and measures; Measurement in body surface or internal structure deformation; The micro-stepping detection technique (precision is at 0.001mm) of numerically-controlled machine tool system, the photoelectricity of servomotor drives etc.

In Fig. 3, S represents the amplitude of rocking, and this distance is less than the distance between 2 clickly points.When pulse generator stops while not rotating, no matter be that the rising edge of A or Type B number or decline prolongs must be in KC region, namely at KC region A and Type B number necessarily in low frequency state.The present invention controls by single-chip microcomputer, often turns a clickly point, and A and B will cover 4 sequential simultaneously, and A and B add up and will walk 8 sequential so, could produce a Z phase signals, in theory, 4 sequential if A just walks to be over, now B does not also complete.State now be A1B0.Original generator will produce the pulse signal of an A phase, can produce the pulse signal of a B phase on the contrary, so just do not reach the problem that does not produce any pulse because of the amplitude of S distance, because the length of S is much smaller than 1/4 wavelength, as long as A and B will complete after 8 sequential in the amplitude rocking at this simultaneously, program just allow pulse generator send A and B (A and B phase difference are 90 degree) thereby and the pulse of a Z item reach the object of anti-vibration (rocking), and compare the duty ratio of A and two pulses of B simultaneously, reach the object of the interference of other signal.

Claims

1. anti-vibration increment type electronic impulser, it is characterized in that, comprise jump ring (1), the side of jump ring (1) is provided with needle roller (2), the dual-side of needle roller (2) is provided with baffle plate groove (3), needle roller (2) and gear (4) engagement, the center of gear (4) is provided with above the rotating shaft (7) on gear (4) surface, the upper square set of rotating shaft (7) has gear (4), lower square set has lenticular lenses (5), and between gear (4) and moving lenticular lenses (5), be provided with the whole optocoupler (6) with sending and receiving apparatus, whole optocoupler (6) is electrically connected to signal conversion output apparatus (8), also comprise single-chip microcomputer, distance (s) between Single-chip Controlling needle roller (2) and baffle plate groove (3) is less than the stop distance (KC) of position of generator two.