CREO MECHANISM - EXCAVATOR ANIMATION USING SERVO MOTOR

hi guys this is tech guru and welcome back to my another tutorial on chrome mechanism today we will be studying how to create mechanism for a backhoe this I have renamed this virus loader but this is called as a backhoe okay you can you you might have seen a caterpillar JCB another backhoe machines ok so what we will be doing is we will see how to use creo 3 okay to creat mechanisms and animate this entire back home ok so what I have done is already created this so we will see how I did it and will try to create this again okay this is the backhoe and this is a mechanism how it works okay and this is what we will be dealing we will be studying on how to create this from detail okay this is how it goes back and then dumps the soil okay so let's begin with it so let's see how to create this so for that what we will do is we will first create a assembly we are not going to use this we will use another assembly and we will see how to do it already create an assembly by name excavator I don't want to I'll save it yes I'll save this check one in case if I need it again so simply I will highlight all my data the first thing I will take is foundation okay and then I will place this foundation as default okay so now what I do is I will go and pick up D what it is what it is base so this base will not be constrained using normal constraints what we will do is we will constraint this space using mechanism constraints okay and that will be pin okay so we'll go here you will pick the pin then we'll pick this and this it's it's but the mechanism says it is not fully constrained so we will go back and say translation will pick this and the bottom portion it sits at the bottom still not complete we have to fix it okay so rotation what we will do is we'll pick this and this then we'll select zero will enable it as regeneration this is the regeneration point which we need will help maintain maximum minimum will save or max minimum is minus 100 degrees and maximum is plus 100 degrees okay and so that is a first mechanism and that goes into this let's check it whether it is of sitting correctly yes so leave it then regenerate it okay and then we will go and pick up one more now what is this what is the name of that sub assembly that should be mean okay so that is main arm so here we go go here go to main are okay this is our main arm so we will keep it here and we will say yes for now and we have we have to constrain this also using pin okay so go here say edit definition go here say pin pick this and pick this okay so then translation pick this then take this it's it's and it is fully constrain okay now after this we will go and pick one more that will be our cylinder okay let us finish it up so which is our cylinder that is us hydraulic cylinder one okay so what I will do is we'll go here assembly we will go and say hydraulic cylinder we'll call it in the assembly say yes okay so now we have made a small mistake here what is it this should be here okay so I will reassemble it so this is main arm remove this and they should come over here okay so that's it now this is fixed now what you need to do is look at how the our cylinder is placed it is placed in this fashion so we will go and place it again in the same fashion okay edit definition first will always be pin okay so we will select this alignment and then we will select this one just not breaking point align picked up bearing related short bearing I should be pin okay so this axis and then you come up and speak this axis salindra sits over there then translation axis this one matches with this one perfect but that's not over yet we have to fix it here okay now here what do you need to do is pick this one and since again done okay not pin just a cylinder pick this one pick this one so you are one arm is ready okay then we go for the next one our next assembly next has some days disarm what is that it is me done okay so we'll go here go pick the mid are bring it into the assembly okay then what we have to do is accept it okay now we want this to sit here so again we will constrain it with pin here it is pick this pin you are not going to pick this one okay so that's what it says you are not going to pick that we are going to pick this mid portion so what we will do is we will go here and pick this one and this one okay and then the translation we will pick the inner portion with the outer portion so it sets okay so now we have a portion of it ready okay so now we will have to bring another cylinders which connects this portion with this one so the cylinders are not named as cylinder two or cylinder three yeah they are called a cylinder three so we will bring cylinder three here we'll call the cylinder three to bring it if you have to bring two cylinders to bring cylinders not the cylinder Ram so cylinder three is here okay so now what we will do is we will assemble this again with pin and cylinder can pick this and pick this so you have it no translation you pick this with this one okay so it's partially set now go and pick new set pick cylinder then pick this one with did I pick cylinder yes with this one okay so one cylinder will not work out we need one more so we need to call one more cylinder three hydraulic cylinder three so we bring it here okay so rotate this then say yes then you have pin break this this one and pick translation this one then pick this then go and say new set go for cylinder pick this axis with this axis that it is so our one half of our work is done okay half of our work is done then now we have to go and assemble the bracket okay in the bracket portion so what we will do is we'll just call the bracket in or bracket pocket not bracket it's bucket okay place it here say this is done here we have to use only the pin say edit any definition go here say pin pick this one pick this one then go back to translation pick this and pick this portion so your pocket is sitting over here now what we have to do one more cylinder is required to complete this assembly okay so what I will do is just pull this up place it here and I will call the final assembly okay let's finalize some days nothing but cylinder underscore one okay so this comes here this is well this will be placed in a reverse manner okay I want the piston to be towards the ground portion so I'll bring this say edit definition again I'll go for pin okay then I will take axis I have this cylinder here translation I will pick this okay and then I will pick this portion my cylinder is right in the middle now I have to go pick new set and say I need cylinder I can have been also picked here but I don't want that I need two special more constraints by speaking cylinder my work will be done so that's it what went wrong say go back done I suppose yes done okay so our assembly is done now what we will do is we will say ctrl G by this our assembly will be set in the default state okay so how do you specify how do you say that by pressing ctrl G or by generation writing the status the position of my backhoe or my excavator or loader will be in this way okay the position of this backhoe excavator completely depends upon these cylinders okay for example let me tell you I'll open the cylinder okay and then I'll go here and say edit definition so what I have done is here in translation I have fix -23 as my regeneration value so whenever I regenerate okay this cylinder will be placed in this fashion however my maximum mini maximum is minus 23 minimum is minus 90 okay so don't confuse with this because I have constrained the cylinder in a different way there is a reason why my magazine minimum are both negative okay however -23 is larger than minus 90 okay so my position of minus 23 will be regeneration value similarly for all the three cylinders I have set regeneration value okay so based on the regeneration value set for these three cylinders it is cylinder this is the cylinder 21 cylinder 3 and cylinder 1 your backhoe position will be decided okay when you regenerate it will come and sit here now I'll give you an example what I do is I go for drag okay I'll pick this I'll bring it bring it down okay I just drag it down when I say regenerate it again come back to the original shape okay if I change the regeneration value for all these cylinders the position will also change right now we come for the main part that is our mechanism now what we have to do is we have to go to applications click on mechanism okay so now first thing first we need the movement of this backhoe along this bar okay for that we have to provide motor okay it is what we will do is will provide servo motor will go here and will click on this okay so we have created a servo motor now but what should be the we want velocity here or position it should be in degrees per second we know that we have set 100 plus 100 degrees and minus hundred degrees for this which part it is base part for rotation purpose we will not be using complete 100 degrees remember that okay but what will be the what is the value you need what is this velocity angular velocity you need for the backhoe to go okay so what I will do is for one one side rotation okay I will take 90 degrees only 90 degrees I'll consider okay and then for three seconds and 30 it will be my since I have 100 okay I will be using only 90 degrees out of 100 okay so I will consider this speed as 30 degrees per second okay this is going to be my motor which motor it is base base motor okay I am NOT your motor it is what it is base motor will be 30 degrees per second will be its velocity I froze it I'll go create one more okay I will call this s base motor BAC base underscore MOT or motor reverse I want it to be reversed use it for reverse direction click the same thing this time again velocity but but this time we will be traveling a much longer distance reverse direction so I will take 40 degree 40 degrees per second okay as my velocity what happens is see I'll go and click on the base and I will tell you why I did that if I go here and if I say rotation I have 100 degrees so I can rotate this way 100 degrees but when my backhoe comes till here and if I have to come back to this position how to travel 200 degrees okay so no so that is the reason why I have done is when I'm wing in when I'm moving in clockwise direction to cover 100 degrees okay I want to move at a speed of 30 degrees per second so that in 3 seconds I will cover 90 degrees because I do not want to cover total hundred degrees so I will use only 3 3 minutes but when I am 90 degrees and I want reverse back again how to cover longer distance for that what I will do I will maintain an angular velocity of 40 degrees per second and I want to do it in five seconds okay that's all so what we will do is we'll just check this it becomes very clear to you I just use an example for this one go to analyze is se new say back hold back or excavator you can even say excavator okay say you have gone three on one direction and you want to come by five so it will be 3 + 5 8 okay - Kara Mattox I will go to mortar okay I want this to be 3 okay after three seconds till the end I want to run the other motor reverse I'll say ok I'll go here and I'd say run analysis it goes ok continue continue probably I bought I will do it we will do it we'll do it so what we will do is we will delete this we'll go back to this say edit definition 8 seconds so start is 8 seconds and this is 3 seconds so frame is let me make it as 50 seconds and then let me make this as 2.99 okay then let us say run run I bought continued assembly stops at three point four seconds now let me go here and make it 99 and see if it works it doesn't work let us about it why does it happen and what went wrong okay let's figure it out should not have happened at first place delete redefinition I don't want this motor trim weight base motor okay I think so I have understood go here reverse is it minus 40 no that is a problem okay so now we generate come here edit definition now run it should work this time because after completing say it's coming right because direction should be min - if it takes plus it will rotate in again continuous direction so we don't want that to happen okay so if Subodh I what means it stops nothing else done okay so now one one portion is done against a control G it will come back to its original shape origin position okay so we have done with our we are done with our first motor that is to control this base in both clockwise and anti-clockwise direction okay now we will go to applying motor for this cylinder okay so which is out that cylinder Reserve cylinder one so now most important thing is to understand the stroke of this motor open this say I don't want to save it open it okay then definition go here and check the translation what it says is it is minus 23 and minus 90 so when you subtract - 19 - 23 you get a value of 67 mmm so that is the stroke of your cylinder okay so now you have to decide what should be the linear velocity for this cylinder so what I will do is I want to I want this cylinder to complete its stroke in four minutes okay so for that what happens is I found two complete standard basics so now what I'll do is I want to complete 67 mm stroke in four minutes so my linear velocity will be sixteen point seven five mm okay so that is what we will be using for our motor speed okay close this now go for servo motors okay click this this is your positive direction understand that okay so now you have to give velocity of minus sixteen point seven five apply leave it okay when you give - it moves in forward direction many of you Maya plus it moves in reverse direction because the direction is in other way okay so if you want to check we will run one more analysis okay go here edit definition now it is four so we'll have to add one more four seconds here for my 8 plus 4 is 12 we have one more motor servo motor we have to rename it let's rename it first and it definition will say hydraulic cylinder one cylinder under school one apply okay so then you go to edit definition can I'm at ik Motors add you speak hydraulic cylinder okay now what I want is after three seconds is complete I want this to start and this will start four seven after seven it's the reverse should start but I don't want to use seven because it will go and hit the limit so we will make it a six point nine nine okay see okay and run okay perfect okay so we got it it stays there once it reaches will come back so this is just forward checking purpose okay don't bother about that so who let me see why it stopped in the middle should have completed everything edit definition so it is 12 second it should have been twelve seconds I didn't side this ok let it let me run it again and check till it definition okay I'm just coming she's coming it's coming it will stop okay don't worry about this assembly ever it just only says as error because it has reached its end okay we can stop it before that also so just complete it 12 okay say okay so now our one portion is ready now we will go and give one more motor to the same cylinder we will not use it now will you just use it at later stage okay go to servo motors name it as hydraulic underscore cylinder no score one underscore reverse okay same way to pick it and then this term velocity it rip all it will be positive sixteen point seven five apply okay we will not use it now we will use it later now comes this cylinder okay now again open this cylinder and check what is it stroke open I don't say okay I just say written okay now open the cylinder and check what is a stroke okay open this edit definition go here go to translation you see forty-four is maximum minimum is ten okay so 44 minus ten is thirty four okay now I want the stroke of this cylinder to be completed in four seconds okay I wanted to compute it in four seconds so 34 divided by four 34 divided by four so this linear velocity will be eight point five okay and so what will be the time limit with invisus stroke has to be completed it will be desired it will be decided by acid self okay so now what we will do is we will see what are the direction of this cylinder it is on top so next is you servomotor call it as cylinder three hydraulic cylinders or three okay and then pick it done go here save a lost city make it as eight-point-five it will be positive okay say apply go back to analysis edit definition no you we have been incredible 216 now here after this is over hydraulic cylinder is over her recent one is over we want the hydraulic cylinder free to work okay when will it work it will work immediately after heroic cylinder one is done so to start at seven four minutes it will end at ten point nine nine this reverse motor will start at 11 and go till end so click OK ok control G run perfect going well now the hydraulic cylinder three will be activated yes can you see this hydraulic three hydraulic cylinder three is activated then the reverse motor will be activated once this reaches its end perfect okay don't bother about the abortion it will am on about abortion of the mechanism just say I bought because our mechanism is returning perfectly so now we are done with this okay so now what we will do is we we don't have to create a reverse mechanism okay we will not do that I would definitely like to run a play of this and see if it actually works the way I got it goes scoops okay it goes scoops then this will work then this will work so next step will be this I don't want to create a reverse mode for cylinder three okay now we will go for cylinder 21 okay open this cylinder and check what is its stroke okay so open it don't save okay now go here do edit definition go back and say translation so what is it so the stroke is 85mm this cylinder has a stroke of 85mm and I want this stroke to be completed within 5 5 seconds so core calculator 85 divided by 5 Ike 85 85 divided by 5 I get a linear velocity of 17 mm per second so that will be my motor here so what I will do is save this regenerate do this and give me number as hydraulic cylinder underscore 21 I will pick this okay go here can emetic velocity it is 17 minus that is minus 70 because I wanted to move forward I want the scooping mechanism to happen so what I will do is I'll say apply leave it I want to reverse mechanism also for this so I will say hydraulic cylinder 21 underscore reverse pick the same one again did I pick it this time it will be positive 17mm per second apply okay now regenerate go back to mechanism okay edit definition here it is 16 plus 5 21 okay go back after hydraulic cylinder 3 has worked ok this cylinder I want hydraulic silent when T 1 to work so add it go here and speak hydraulic cylinder 21 okay hydraulic saloon 21 we'll stop at 11 second this will start at 11 second it will work for with 15 3 15 second so it will be 14.99 this reverse motor will start at 14.99 and end till last okay so let's say okay control G and then run this mechanism a run allow it to work comes down comes down comes down comes down then the smaller cylinders will work the soil is getting scooped then the larger cylinder will work now about it why why why why okay how about Apollo so we have completed till smaller cylinder okay so del it probably something wrong with motor direction we'll see so no big deal edit definition it is minus 12 minus 2 or minus 17 it should be minus 17 not 12 okay direction correct but it didn't work why let's go here check it okay so Solyndra three will work here twenty point nine in the upper eleven it'll go here this will be 15 okay control G and then run the analysis I can hope it works it will work right wait wait wait wait we'll see it will work it will work I'm sure it about this time no no no no why why is hydraulic failure 21 not working what is the problem it's the problem what is the problem okay 11 plus Phi you so much 16 right so only 1 plus 5 is 16 so this let me keep it as 9 and then change this to 16 okay so you okay control G okay delete this go here and run probably it's the direction that I just causing the problem we will see we will see we will create a separate mechanism for that a cylinder and you see whether it works correctly or not if it isn't working [Music] we'll create a separate mechanism for that okay what we'll do is we'll create mechanism will create control G this is how we have to troubleshoot it okay create a mechanism okay so maintain Phi U and then this is the position konna Mattox delete everything delete everything we want only one motor over there that is 21 okay this is the motor that we don't want so we'll have to start it and run it okay run it's not working can you see that so if if everything is fine then this motor should have worked at first place cancer so I know what things are gone here go to motor here go to hydraulics illness area definition changes to positive it's my mistake twice it's my mistake okay this should be - now it has to work no need to worry okay fire you okay delete everything delete delete delete delete delete delete run effect can you see that it's working so if this works when that has to work ctrl G run this mechanism delete this go here run it now it has to work without any H package look don't worry key work it has to at this time because I have placed them cylinder in a reverse direction so that is the reason why I got confused okay otherwise you should not be a problem now here it goes now it you move back that's it it won't do anything else okay so I bought it continue again so I continue or about whatever now after this stage okay what you need to understand this will go and say ctrl G okay will say play okay now what I want is once this position is reached once the material is scooped okay I don't want the reverse direction to work I want cylinder one to pull this back again so what we will do is we will use after this sealer 21 we will use cylinder 1 okay so close this I have already created the motor so all that I need to do is just go and add the motor in mechanism delete this here edit definition okay so scooping how much cylinder 21 301 for so it will go to 21 plus 425 okay then cylinder one will come back again that is cylinder one reverse okay after fifteen point five we will have sixteen here okay it will work for four seconds that is sixteen plus four is twenty nineteen point nine nine here it goes to twenty until the end okay say okay run it again yes come on come on come on come on come on come on should work not a problem see the advantage of using linear motors for every motion whether it is a retraction or extension of these cylinder is you get an opportunity to use the motor as per your wheel if you cycle oral or parabolic it becomes you have to give a lengthy detail of timings which is sometimes irritating okay because sometimes you get confused which motor should work at what time so it is better to use linear motors independently you can add multiple motors okay so once this stage is reached once when the scooping is done we will use will stop it okay we're done so till now everything is fine say continue continue continue continue continue okay now the material has to be thrown back so we will use this hydraulic cylinder 21 rivers okay so we'll go back to control G or you can regenerate go back to analysis so here heroic 7:21 has a five second 25 5 sec so 25 plus 5 is 30 okay so go back here after this okay view this hydraulic cylinder 21 for reversal norik cylinder 21 reverse so after 19.99 will have 20 okay now after this this is the last station okay so it is after here you have delayed this okay so what happens is it comes in here till end okay so in ten point nine nine then it comes 20 and then we have to scoop it up neurotics in under 21 rivers so after we come down so what is the timing for that just five seconds so this is twenty four point five five okay twenty four point nine nine this is twenty five till the end okay till the end so click ok say control g delete this okay then run it should work now complete the mechanism is over now so the material is getting scooped now the arm is going down the mud is getting scooped whatever it is the material is getting scooped okay then you are lifting the material now now the material gets lifted is collected in the bucket okay then you lift it up the bucket gets lifted you take it to the other end okay wait a minute it will do it about what happened for this the reverse mechanism has to work okay hit continue it goes now it will drop continuous a continue it has to work it will work but why we are getting an abort a problem is that you the timing wrongly okay are the timing for the motors wrongly okay the mechanism is stopped for that particular time is over okay then we have to again continue till the gap is filled okay so that's all so what you guys need to do is when you set this mechanism okay go here this timings play a very important role if those timings are wrong then your mechanisms stop in the middle and you will have to manually click continue every time to fill the gap that has occurred okay so what happens is let me check it again my base motor works for 3 seconds okay after 3 seconds hydraulic cylinder 1 will start for 4 seconds that is 3 plus 4 is 7 I just I upset it was 6.99 and after that hydraulic cylinder 3 will start for 4 seconds ok so 7 plus 4 is 11 so this is correct okay so this is this one up there is no problem with this also then hydraulics inner 21 ok hopper 11 plus 5 this 11 plus 5 16 here it will start as 15.99 it is correct after that your hydraulic cylinder reverse should start 16 correct so heroics in Reverse is 21 it is one which is 4 seconds 4 plus 16 plus 4 is 20 starts correctly 19.99 ok after that your reverse motor will start which is for 5 seconds ok 19 20 + 420 + 5 25 twenty four point nine nine ok then your final scooping will start that is horizon 21 which is 25 25 plus the end so everything is fine okay they don't see there's anything wrong here it doesn't matter our mechanism is done only thing is you guys need to take care of the timing okay let me see if it works here if you are getting a perfect play then everything is done keep this here you are go ahead cause here scoops okay it scoops then it pulls up then it goes down and it drops okay so this is how you run the mechanism guys this is how you create a backhoe mechanism in chromic clear mechanism tutorial clear mechanism option okay and there it goes this is the play replay over here so I hope you have learned a lot in this tutorial most important thing is how to create linear motors okay for hydraulic cylinders then setting the timings properly how to set the velocity for linear motors and for rotational motors that is in degrees per second and mm per second okay so that's important and how to set why I have written is 0.9 and in timing series that when you hit the end time it gets aborted okay then your load you'll have to click continue and then you'll have to start it again so you can even get rid of that if you have a better precision or your model okay so now next what happens is here you need to will stop this okay we'll go back then you can create or capture a video file over here okay whatever you do you can create a video of it I already created a video for few files I will show it to you okay go to D excavator here and then have some couple of videos to show to you people so that you guys will understand how a video can be created look at this you can create videos from by using capture option and keep it with you people or you can share it with your design team to tell them that this is the sequence of operation that is going to happen in my hydraulic cylinders so that hydraulic engineers can effectively create a circuit circuit bike diagram as per your mechanic mechanism requirement or sequence requirement okay okay so that's it I hope you guys have enjoyed this tutorial you guys have understood how to create mechanisms how to create videos video is nothing but it there is nothing big in this video okay all that you need to do is go to play click on play okay and then you have this option here you need to click on capture okay save where you want to save the video file okay you can give any name and just say okay can set framerate as 30 per second or whatever you can set the height also or 700 remove the lock aspect ratio and when you say click OK your entire mechanism video will be created once this entire you can read here the video is getting created in this generate it is getting generated and save at the particular location so whence once it is done you can go to that particular location and see your video created and shared okay so that's it guys that solves in this tutorial I'll come back after a very long time so I hope you guys have enjoyed this tutorial see this is the tutor which is getting recorded over here you guys so here there are a lot of videos have created in my previous two towards so please if you like this video please leave a comment please leave a comment about what you think about this video and if the if you do if you need anything from this video from me in the future like if you need any particular videos in a particular subject ok you can ask me ok and please subscribe for more videos ok you'll be getting such good videos again in the future also ok thank you guys thank you very much

Channel: Garuda Stambha

Views: 20,676

Keywords: creo mechanism tutorial, creo mechanism, excavator, backhoe, servo motor, creo tutorials, creo 2, creo 3, jcb, caterpillar, creo 4, ptc, hydraulics, creo tutorial videos, creo videos, creo tutorial for mechanical engineering, creo parametric 2.0 tutorial, creo parametric 3.0 tutorial

Id: fFbIBKB5pvk

Length: 51min 0sec (3060 seconds)

Published: Tue Oct 03 2017