For the folks not liking this setup, keep in mind that many industrial broaching operations are horizontal. Horizontal is good because the broach doesn't fall on the floor every time it passes through, as happens when using a vertical press. If you use a porta power hydraulic pump unit, you won't need the springs, as it is self retracting.
Great setup for a frankenstien. I call them scrap box fabs. One shop I worked at had a broaching press made with a regular cylinder from tractor supply place, a 1 1/2 hp electric motor with a hydraulic pump rigid mounted. A valve mounted on the leg of the beast and a pail the oil came in for a reservoir. If only 200, your setup probably makes more sense. Great vid.
Agreed, the broach I use at my work is definitely much easier to use than a manual press. Especially when I'm having to broach 1/2" keyways in S7 rolls.
Nice build for the resources you have. Perhaps when you make more, you can get a small hydraulic pump package and a ram, two way valve, and overpressure bypass valve.
my suggestion would be to make some sort of shield between you and those Springs. Nothing fancy but just a steel plate to stop them from causing any harm
I'm sure it's been brought to your attention before, but you really should use a hat at the end of your cylinder! Even a simple piece of pipe with the end capped to save wear and tear on the piston end. Since you have the bolts at the end, it can be held there.. and have room to make better spring mounts!
You may want to consider covering the right hand portion (those springs when extended). Some kind of polycarbonate blast shield. Those springs look like they want to make a mess of your eyeballs.
Any plan to sell these? I could think of a few other uses for this set up, where the rigidity and extra stroke would be much better than the HF 20ton press.
why you did not use a screw and electromotor that rotates the screw and pushes a huge nut forward witch drives that "teeth thing"? sorry for bad english. :)
I just ordered a set of SWAG wings for my HF roller. I haven't tried roll bending my 1-1/2" tube yet. I'm guessing that the tool isn't going to hold up as well as I would like. Would you be willing to replicate this broaching process on my 1-1/2" die for a fee?
It is not cheap for a quality 3 ton ratcheting manual press. Well over a thousand dollars. Remember I need an 11" stroke min. After you do a couple hundred a month push button air/hydraulic is the easy and inexpensive solution.
Nope, you need to use plenty of cutting oil. We have been using this set up for over 500 broached key ways and we are still using the same cutter shown in this video.
Actually, he did not intentionally design his broach set-up to be "hammer action". The pulsing that can be heard, and seen (if you pay close attention) is due to the air compressor. It is a reciprocating compressor (sounds like a single cylinder model). As he opens the air valve to the press-cylinder, the pressure drops in the compressor tank, and the auto-pressure switch starts the compressor to make up for the lost volume. Since the compressor is generating air pulses as the press cylinder is driving the broach forward, the air pulses are affecting the pressure delivery to the cylinder, and a slight "hammering" can be observed. The compressor completes its cycle at 7:03 and the pressure switch shuts it down. The hissing noise that can be heard at shut-down, is the switch venting the "head pressure" so that the next cycle's start-up will not have to overcome the residual pressure, thus easing the start-up load on the electric motor and reducing wear and tear on the motor's start-up capacitors.
The way an air over hydraulic system works is it uses an air operated piston pump to make the hydraulic pressure. it's just the action of the pump you are seeing. Every one of these will act in the same way.
Slow and I wouldnt use hydraulic on a light keyway operation, pneumatic ram would be the way forward.I own a machine shop and Id go bust broaching with your gadget. Other than that I like the stuff you make
Your idea is good. Try making a cheap electric Ram slotter { A GATE CLOSER }ect off ebay on 12v Dc adapter. The ram needs to 150kilo newton pounds force {160-250 great} for about 60 dollar, adapter about 10 Dollar. You place a foot end in ram holding the Broach. You could use your Spring return Or you could just use the remote supplied forwards/back wards so theres not much to move about for. Let the broach fall onto a pad under the work. This will allow the riser blocks to be fitted to the broach guide before the next ram pass. Also a attachment Jig/Holder could be fitted to the tool post and same done there.
machinekeys at eaglepacific just type into Google for any type of machine key in any size with prices that are much lower than Grainger, Fastenal, and Mcmaster
Make a new longer bushing and you wouldn't have to flip the part. I have made bushings before and I also use a whole lot more cutting oil than you. Good idea.
Occasional broaching is one of the big reasons I put gibs on my HF 20 ton press. There's *zero* slop in the ram now. th-cam.com/video/X6zGj9avKIQ/w-d-xo.html
Outside the box , the way our nation grew to be the greatest of the world. Nice work. Im sure refinements will come.
For the folks not liking this setup, keep in mind that many industrial broaching operations are horizontal. Horizontal is good because the broach doesn't fall on the floor every time it passes through, as happens when using a vertical press.
If you use a porta power hydraulic pump unit, you won't need the springs, as it is self retracting.
porta power's are really nice, and work good for this as mentioned
Great setup for a frankenstien. I call them scrap box fabs. One shop I worked at had a broaching press made with a regular cylinder from tractor supply place, a 1 1/2 hp electric motor with a hydraulic pump rigid mounted. A valve mounted on the leg of the beast and a pail the oil came in for a reservoir. If only 200, your setup probably makes more sense. Great vid.
Interesting. No part lock down required. Thanks for sharing this.
Agreed, the broach I use at my work is definitely much easier to use than a manual press. Especially when I'm having to broach 1/2" keyways in S7 rolls.
Nice build for the resources you have. Perhaps when you make more, you can get a small hydraulic pump package and a ram, two way valve, and overpressure bypass valve.
my suggestion would be to make some sort of shield between you and those Springs. Nothing fancy but just a steel plate to stop them from causing any harm
Nice work Troy!
I'm sure it's been brought to your attention before, but you really should use a hat at the end of your cylinder! Even a simple piece of pipe with the end capped to save wear and tear on the piston end. Since you have the bolts at the end, it can be held there.. and have room to make better spring mounts!
moly dee is some prime cutting oil for that job, and a manual press gets old after awhile even with a extension.
I would like to have parts made how many do you have to have a machine shop make before before the price becomes reasonable?
I like it.. small suggestion... make a guide plate for the broach... so it lines it up straight going in. Would basically be a small block.
You may want to consider covering the right hand portion (those springs when extended). Some kind of polycarbonate blast shield. Those springs look like they want to make a mess of your eyeballs.
Interesting way of broaching, you make do with what you have. Thanks-
Any plan to sell these? I could think of a few other uses for this set up, where the rigidity and extra stroke would be much better than the HF 20ton press.
good video.,
How much depth that the tool can cut in a single pass ?
what did you call it at 7:17?
واقعا جالب بود.اولین بار بود این نحوه جا خار درار رو میدیدم
why you did not use a screw and electromotor that rotates the screw and pushes a huge nut forward witch drives that "teeth thing"? sorry for bad english. :)
I was just waiting for one of those springs to break/pop off. Put some sort of shield / barrier round where they are attached?
why do you even bother man. give it a rest it will be fine.
There are two types of people:
1) That'll do. Get it done.
2) OMG WE'RE ALL GONNA DIE!!
I think its beautifull well made !!
should release pressure every few inches to allow broach to reset from press mis allignment
You should find an old Atlas Metal Shaper. Could knock those out pretty quick.
Very cool set up.
Boa noite ,onde eu acho essa ferramenta brochadeira pra comprar?
My thought exactly. The springs look very dangerous.
so what size broach do we need to buy so we can use you drive axle?
Thinking modify my wood splitter to broach
I'm thinking about something similar for my tractor's 3 point hitch.
I just ordered a set of SWAG wings for my HF roller. I haven't tried roll bending my 1-1/2" tube yet. I'm guessing that the tool isn't going to hold up as well as I would like. Would you be willing to replicate this broaching process on my 1-1/2" die for a fee?
It is not cheap for a quality 3 ton ratcheting manual press. Well over a thousand dollars. Remember I need an 11" stroke min. After you do a couple hundred a month push button air/hydraulic is the easy and inexpensive solution.
Hey I need help! I have 3 spacers that I need broached, I am just lost don't know where to go. Also I'm in Perris, CA.
Awesome !
Nope, you need to use plenty of cutting oil. We have been using this set up for over 500 broached key ways and we are still using the same cutter shown in this video.
Swagoffroad how many Rams have you had to replace Harbor Freight has not sold anything in 20 years that last 500 anything
This fantastic invention does not require a milling machine
He really very good .
Did you say no cutting oil?
America is still alive
How do you get the air pressure to be hammer action?
Actually, he did not intentionally design his broach set-up to be "hammer action".
The pulsing that can be heard, and seen (if you pay close attention) is due to the air compressor. It is a reciprocating compressor (sounds like a single cylinder model). As he opens the air valve to the press-cylinder, the pressure drops in the compressor tank, and the auto-pressure switch starts the compressor to make up for the lost volume. Since the compressor is generating air pulses as the press cylinder is driving the broach forward, the air pulses are affecting the pressure delivery to the cylinder, and a slight "hammering" can be observed. The compressor completes its cycle at 7:03 and the pressure switch shuts it down. The hissing noise that can be heard at shut-down, is the switch venting the "head pressure" so that the next cycle's start-up will not have to overcome the residual pressure, thus easing the start-up load on the electric motor and reducing wear and tear on the motor's start-up capacitors.
The way an air over hydraulic system works is it uses an air operated piston pump to make the hydraulic pressure. it's just the action of the pump you are seeing. Every one of these will act in the same way.
smart contraption , ingenious.
Excellent!
what are the pulleys used for?
I'm not the video maker, But it appears to be a die for pipe bending.
Slow and I wouldnt use hydraulic on a light keyway operation, pneumatic ram would be the way forward.I own a machine shop and Id go bust broaching with your gadget.
Other than that I like the stuff you make
شكرا
I came for swag.
In addition, this machine is in my opinion, very dangerous because of its springs.
Ingenious, but wouldn't it better to get an old used shaper? I think you'll have more control and will be a bit faster.
No, but the traditional way to Broach is with an Arbor press which is really cheap and is probably quicker in the long run.
not to be rude but the "spacer" is actually called a shim just so you know the proper term
Or a horn
Way to re-invent the wheel...
Your idea is good. Try making a cheap electric Ram slotter { A GATE CLOSER }ect off ebay on 12v Dc adapter. The ram needs to 150kilo newton pounds force {160-250 great} for about 60 dollar, adapter about 10 Dollar. You place a foot end in ram holding the Broach. You could use your Spring return Or you could just use the remote supplied forwards/back wards so theres not much to move about for.
Let the broach fall onto a pad under the work.
This will allow the riser blocks to be fitted to the broach guide before the next ram pass.
Also a attachment Jig/Holder could be fitted to the tool post and same done there.
it would take half the time in a drillpress
machinekeys at eaglepacific just type into Google
for any type of machine key in any size with prices that are much lower than Grainger, Fastenal, and Mcmaster
Make a new longer bushing and you wouldn't have to flip the part. I have made bushings before and I also use a whole lot more cutting oil than you. Good idea.
I've never been any good at this, just to be honest, broke a bunch of broached in my life.
T=up
You should crush a few super strong beer cans, just for man domination!
CHOOO! CHOOOH! LOL
wut am i watching, is this easy?
not bad
I do, but I'm obsessive compulsive. I live a weird life.
Occasional broaching is one of the big reasons I put gibs on my HF 20 ton press.
There's *zero* slop in the ram now.
th-cam.com/video/X6zGj9avKIQ/w-d-xo.html
The springs scare me. Great solution otherwise!
top
All you need is a shop press, sorry but that's all you really made ...
I had to stop watching half way through because the lousy focus on the camera was making my eye balls grow square!
you could just use a very simple manual press they are just as cheap and fast
i was watching about kawasaki motorbikes -.-
Agree, manual press would be hella faster.
where can take anybody that buys tools at Harbor Freight seriously
Clown Whisper
Clown Whisper
??????
Immagini mosse e ripresa di gomito e spalle dell'operatore , pessimo video.
Молодец ! :)