Loading Tools? Always Do This First. Boring Bars and Probes - Haas Automation Tip of the Day.

[Music] what we have here is a setup person loading up all of their tools for the day but hold on a second wait wait wait mistakes have been made this newbie setup guy has made some mistakes they're gonna cause us to break tools to run parts out of position and maybe even jam up their tool changer but to avoid these kind of newbie mistakes okay boomer yeah I know that can cause us problems that's why we're gonna look at how to avoid those mistakes in this hostile of the day everything for me these ends with my setup so check this out I've got a block loaded up okay boomer I am excited about today's tip of the day because it's such a common topic right anyone who's around a hostile loads tools every setup guy programmer and some operators are loading tools but what we saw earlier with that unnamed set up guy putting the tools in was actually pretty bad some bad things were happening number one he was loading up a large tool and he had not yet designated it as a large tool on the pocket tool table if you've got two large tools next to each other in the carousel they might bump into each other and jam things up and then you have to go through an entire recovery process so we've made an entire video about this we'll link to it in the description so we're not going to talk about that anymore in this video what we are going to talk about is boring bars Boyne bars are fantastic if you want to get just perfect positioned holes this is the way to do it the reason that they position so well that they put the holes right where you want them is because this type of tool is not influenced as much as an end mill or a drill or even a ream because they have a single insert it's called a single point tool it has the same load as it comes around right for the most part hold on one second this will make more sense if I have some example parts okay I've got some parts here so for a normal boring operation our tool is going to come in to the spindle start rotating it's gonna feed down and then what's gonna happen is at the bottom of the hole it's gonna orient itself and it's gonna face most likely to the left if the boring headed the bottom of the hole is facing to the left it's then going to stop and it's gonna retract by a certain distance that distance is defined by the Q value on our g76 line and then it's gonna retract up now why do we do this we could just use a reaming cycle which means that it feeds down and it feeds up right just feed down feed up we're not gonna use that typically with our finished boring cycles giving it that kind of spring pass it might we have a beautiful finish on the way down and then as it feeds back up it's not really grabbing the material just kind of rubbing up against it and it'll give you a crummy service finish and weird things happen so we want to engage in the cut on the way down retract and then get out of Dodge this is where things can go really really badly though what if it retracts in the wrong direction so which direction is normal this is defined by setting 27 on the haas control setting 27 says g76 g77 shift direction and by default from the factory it's always going to move in the X positive direction by a Q value amount this is all described in the manual but we're showing you a video here because sometimes a video is worth a thousand words so if you load up a boring bar into your Hoffman we typically want that single insert facing to the left facing in the x- direction because when the tool gets to the bottom of the hole it's gonna m-19 orient and then it's gonna retract in the setting 27 X positive direction before pulling up if you had put the boring head in the opposite direction had it facing to the right X positive and then it actually retracts to the X positive direction you can imagine what's going to happen it's gonna at the very best bust your insert and at the worst it's gonna break your boring bar this is also why we choose to use small Q values if you had a giant boring head and you could retract by a half inch to one side of the other don't there's no reason to you're just trying to get that insert off of the wall so typically a Q point zero one ten thousandth of an inch is plenty that's that's more than enough now on a boring head like this this is a M it's actually a really cool boring tool by seco this is this is like a bulletproof tool it's through spindle coolant it also has these key ways in here to make sure the tool is oriented and locked perfectly in the direction that it's at always so we're not holding this in an ER call it it's built into the holder but if I load this boring tool into my spindle it's always gonna face at m-19 spindle orientation it's gonna face this insert towards the operator that's the y- direction so in this case with this boring head we need to retract in the Y positive direction at the bottom of the hole so how do we accomplish this well right off the bat we've got to get rid of the Q value on our g76 line if there is a Q value on your g76 line whether you've got anything else on there it's gonna always retract to the default setting twenty-seven direction which is X positive which which might break this tool if it's got a large value so Q always supersedes an i or j value so just using an IRA J is not good enough you've got to get rid of the Q with this tool that's going to face in the y- direction so we want to retract in the Y positive direction which means we're going to use a J point zero one a J positive point zero one not a J - point zero one if we use an AI value that's gonna retract along the x axis either negative or positive I minus 10000 M direction I positive 10,000 a J value will always retract along the y axis J plus 10,000 alive positive direction J minus 10,000 the y- direction so whose responsibility is it to make sure that this all happens that it all works out my personal opinion is that it's always a setup guys fault so the person who is actually putting that boring head that boring tool into the spindle should be responsible for making sure that that insert is facing the right direction again typically on a hospital fault it should be facing left but with a special tool that must be faced in a certain direction it's the set up guys responsibility to make sure that the program gets adjusted either they need to adjust it or they have to go back to the programmer to adjust it get rid of the Q value added in the proper I or J value so it shifts in the correct direction so just a really good thing to know for each and every setup guy out there now along those same lines I want to talk about our probe now what does what does a boring bar have to do with our probe well it's that m-19 it's that m-19 when the tool is loaded that I want to talk about before I load a boring bar I go into MDI I enter m-19 and press cycle start and I watch a spindle orient and then I'm gonna load my tool before I calibrate my probe for the first time I use MDI I press m-19 i watch orient and I load this tool the probe into the spindle and I always always load it with the Haas logo towards me towards the operator now why is this matter because at some point this probe is gonna be taken out of the machine you're gonna be changing the batteries where you need an extra extra pot in the machine to put a tool in and when that tool goes back in you want to put it back in the same way you pulled it out because during the calibration process a cycle is run and it decides how far is this probe off center in the X and it puts that value into macro variable five five eight and then how far is this Ruby tip out of round you know off center and the y-axis and it puts that value into two macro variable five five nine but if after calibration you take the tool out you rotate it and put it back in you're gonna be off by twice the amount in variables five five eight and five five nine if this thing was was 4/10 off in the y-axis then you rotate it put it in backwards and then run that probe again after calibration it's not gonna be off by 4/10 in fact it's gonna be off by eight tenths of a fowl really really bad those calibration values are there to make things better not worse but they'll make things worse if you don't put it back in facing the right direction so just one more thing to consider so talked about loading in your face Mills before you do that make sure you designate large tools as large before you load up a boring bar make sure um nineteen and load the bar in the correct direction and you have to check the g76 in your program at the same time make sure that the the actual tip direction matches the programmed IJ q setting 27 values and the same thing goes for our probes when a probe is put in before it's calibrated that first time I always go hast logo out and then each and every time it's put in after that make sure everyone knows to put it back in in the same direction that is it that's it for today's tips on how to load tools I hope you got something out of it and we'll see you next time thanks for watching this pasta for the day you

Channel: Haas Automation, Inc.

Views: 104,567

Rating: 4.9389486 out of 5

Keywords: CNC machine tools, CNC machining, Gene Haas, Haas Automation, Haas CNC, CNC, Haas, haascnc, machining, manufacturing, cnc machines, cnc mill, milling machine, cnc machine, cnc milling machine, machine tools, lathes, cnc machining, rotary table, cnc machinery, cnc machine tool, boring bar, cnc machining center, cnc cutting machine, tip of the day loading tools, haas tip of the day, mark terryberry tip of the day, loading a boring bar always do this tip of the day

Id: IbJOgvXADU0

Length: 10min 45sec (645 seconds)

Published: Fri Feb 28 2020