A kind of calibration syringe needle mechanism automaticallyTechnical field:
The present invention relates to autoalign unit field, more particularly to one and use machineryCalibrating coordinates syringe needle flexibility and calibration syringe needle mechanism and the calibration steps thereof automatically of height change.
Background technology:
Sometimes for syringe needle, product is processed at workshop, and the commonly used meeting of syringe needle is curvedSong or height change, re-using syringe needle after so changing syringe needle will affect the qualification rate of product,Need to calibrate the flexibility of syringe needle and height, it is therefore necessary to a kind of calibration syringe needle machine automatically of designStructure.
Summary of the invention:
In place of it is an object of the invention to for the deficiencies in the prior art, it is provided that one calibrates pin automaticallyHead mechanism and calibration steps thereof, with mechanical coordinate calibration syringe needle flexibility and height change, its behaviourMaking method simple, calibration is accurately.
The technology solution of the present invention is as follows:
A kind of calibration syringe needle mechanism automatically, it includes correlation induction apparatus, the sensing of described correlationThe front portion of device is torus structure, and rear portion is the hollow circular cylinder on sidewall with four slotted eyes,And between torus structure and hollow circular cylinder, it is symmetrically installed with four groups of correlation induction apparatus briquettings；It is symmetrically installed with four emission sensors in the annular wall of described torus structure and fixes post, andFour emission sensors fix post respectively from the rear end of torus structure passes and extend intoIn hollow cylinder, each emission sensor is provided with emission sensor in fixing post.
As preferably, the anterior torus structure of described correlation induction apparatus and the hollow at rear portionCylindrical structure is one-body molded.
As preferably, in described correlation induction apparatus, it is provided with emission sensor amplifier.
Using the syringe needle mechanism of calibration automatically to calibrate syringe needle flexibility and the method for height, it includesFollowing steps:
(1) two correlation induction apparatus symmetry is mounted opposite, and two correlation induction apparatuss divideDo not link together with motion control card；
(2) syringe needle is fixed around kinematic axis at four emission sensors of correlation induction apparatusPost moves according to circular interpolation movement locus, makes syringe needle can accurately encounter correlation induction apparatus and send outThe light gone out 4 times；
(3) after every time light four times encountered by syringe needle, by the probe capturing function of motion control cardWrite down Current mechanical coordinate immediately, 4 points (X, Y) try to achieve two linear equations, then by directlyLine equation tries to achieve intersecting point coordinate, and the intersecting point coordinate tried to achieve is i.e. the datum mark of syringe needle；
(4), after writing down datum mark, when changing syringe needle use syringe needle recalibration next time, intersection point is satTarget change is exactly the bending change of syringe needle；
(5) after trying to achieve intersecting point coordinate, the top of axis of motion to intersecting point coordinate, kinematic axisDrive syringe needle slowly toward declining, encounter moment of emission sensor when syringe needle and write down current Z axisMechanical coordinate, the Z axis coordinate of for the first time calibration i.e. datum mark, when needle exchange head next timeAgain the intersecting point coordinate tried to achieve the when of the pin of school compares with reference coordinate, i.e. may know that syringe needle is highThe variable quantity of degree is how many.
The beneficial effects of the present invention is:
The present invention uses mechanical coordinate calibration syringe needle flexibility and height change, two correlation sensesDevice symmetry is answered to be mounted opposite；Syringe needle passes around kinematic axis at four correlations of correlation induction apparatusSensor is fixed and moved according to circular interpolation movement locus in post (can also be other motion railMark, can correctly encounter the light that correlation induction apparatus sends just may be used for 4 times as long as syringe needle can be metWith), make syringe needle accurately to encounter light that correlation induction apparatus sends 4 times；Light encountered by syringe needleAfter line four times, the probe capturing function of motion control card write down Current mechanical coordinate immediately, by4 points (X, Y) try to achieve two linear equations, then are tried to achieve intersecting point coordinate by linear equation, try to achieveIntersecting point coordinate be i.e. the datum mark of syringe needle；After writing down datum mark, change syringe needle and use under syringe needleDuring secondary recalibration, the change of intersecting point coordinate is exactly the bending change of syringe needle；After trying to achieve intersecting point coordinate,Axis of motion is to the top of intersecting point coordinate, and kinematic axis drives syringe needle slowly toward declining, and works as syringe needleThe moment encountering emission sensor writes down the mechanical coordinate of current Z axis, for the first time the Z of calibrationAxial coordinate i.e. datum mark, the intersection point tried to achieve when the nose heave new school pin of needle exchange next time when is satMark compares with reference coordinate, i.e. may know that the variable quantity of needle height is how many.
Accompanying drawing illustrates:
The present invention is described further below in conjunction with the accompanying drawings:
Fig. 1 is the structural representation of the present invention；
Fig. 2 is another structural representation of the present invention；
Fig. 3 is the front view of Fig. 1.
Detailed description of the invention:
Embodiment, is shown in accompanying drawing 1～3, and a kind of calibration syringe needle mechanism automatically, it includes correlation senseAnswering device 1, the front portion of described correlation induction apparatus is torus structure, rear portion be on sidewall withThe hollow circular cylinder of four slotted eyes 2, the anterior torus structure of correlation induction apparatus and rear portionHollow circular cylinder structural integrity molding, and symmetrical peace between torus structure and hollow circular cylinderEquipped with four groups of correlation induction apparatus briquettings 3；It is symmetrically installed in the annular wall of described torus structureThere are four emission sensors to fix post 4, and four emission sensors fix post respectively from circleThe rear end of ring body structurc passes and extend in hollow circuit cylinder body, and each emission sensor is fixedEmission sensor is installed in post.
Emission sensor amplifier, four correlation sensings it are provided with in described correlation induction apparatusDevice electrically connects with emission sensor amplifier respectively, and emission sensor receives signal by correlationFormula sensor amplifier processing and amplifying also exports corresponding signal.
Using the syringe needle mechanism of calibration automatically to calibrate syringe needle flexibility and the method for height, it includesFollowing steps:
(1) two correlation induction apparatus symmetry relative localization is installed, and two correlation sensingsDevice links together with motion control card respectively；
(2) syringe needle is fixed around kinematic axis at four emission sensors of correlation induction apparatusPost moves according to circular interpolation movement locus, makes syringe needle can accurately encounter correlation induction apparatus and send outThe light gone out 4 times；
(3) after every time light four times encountered by syringe needle, by the probe capturing function of motion control cardWrite down Current mechanical coordinate immediately, 4 points (X, Y) try to achieve two linear equations, then by directlyLine equation tries to achieve intersecting point coordinate, and the intersecting point coordinate tried to achieve is i.e. the datum mark of syringe needle；
(4), after writing down datum mark, when changing syringe needle use syringe needle recalibration next time, intersection point is satTarget change is exactly the bending change of syringe needle；
(5) after trying to achieve intersecting point coordinate, the top of axis of motion to intersecting point coordinate, kinematic axisDrive syringe needle slowly toward declining, encounter moment of emission sensor when syringe needle and write down current Z axisMechanical coordinate, the Z axis coordinate of for the first time calibration i.e. datum mark, when needle exchange head next timeAgain the intersecting point coordinate tried to achieve the when of the pin of school compares with reference coordinate, i.e. may know that syringe needle is highThe variable quantity of degree is how many.
Above-described embodiment is the specific descriptions carrying out the present invention, simply the present invention is entered oneStep explanation, it is impossible to be interpreted as limiting the scope of the present invention, those skilled in the art's rootMake some nonessential improvement according to the content of foregoing invention and adjustment each falls within the guarantor of the present inventionWithin the scope of protecting.