Announcement

Collapse
No announcement yet.

What Is This?

Collapse
X
 
  • Filter
  • Time
  • Show
Clear All
new posts

  • What Is This?

    I found this, and three others like it, in a box of stuff I recently picked up.

    I have no idea what they might be, but they are marked:

    J&S INTL.

    HBLP 50X4 3/4X

    448 B=2 1/2







    ------------------------------

    If anyone knows what they are, I would appreciate it if you could let me know too.

    Thanks,

    - Bill

  • #2
    Those are guide punches for a progressive punch press die. They fit in a block on the top shoe and go into a hole made by another punch at the previous station to accurately locate the part for the next hit. They are held in place by a spring loaded detent ball so the ball can be retracted and a worn or broken punch can be quickly replaced without dismantling the die.
    Kansas City area

    Comment


    • #3
      I think they are called ejector pins.

      --Doozer
      DZER

      Comment


      • #4
        Originally posted by Doozer
        I think they are called ejector pins.

        --Doozer
        Nope. Ejector pins would be flat on the end to push off a piece that might be stuck to the punch. I see Toolguy calls them guide pins. We always called them pilots since their function was to make sure the stock was in the right position for the next station/next stroke.
        .
        "People will occasionally stumble over the truth, but most of the time they will pick themselves up and carry on" : Winston Churchill

        Comment


        • #5
          Pilot

          TGTOOL has it.
          They are called a "ball lock pilot"
          Visit my site for machinist videos free charts & more

          Machinist Classifieds Free Listing

          Comment


          • #6
            Thanks, guys.

            I guess they won't do me any good, but at least I now know what they are.

            More for the scrap pile, I guess.

            Thanks again,

            - Bill

            Comment


            • #7
              I think your girl friend could fine a use for one of them, err never mind, too small

              Comment


              • #8
                You guys are all wrong, that is an american 1 dollar bill legal for all debts public or private.
                Andy

                Comment


                • #9
                  Originally posted by cryptrx

                  More for the scrap pile, I guess.

                  there's a bunch of T&D guys here - what would you expect these to be made off? a nice piece of chrome moly or tool steel deserves at least a good seat in the scrap bin...with some heat treating there's likely lots that can be made of them
                  in Toronto Ontario - where are you?

                  Comment


                  • #10
                    If you grind a point on it, it makes a good center punch. They are very hard high quality tool steel.
                    Kansas City area

                    Comment


                    • #11
                      I looks like a line up or guide pin for a progressive punch press die. As the metal moves forward to the next punch station those pins go through holes that make sure the metal lines up perfect.

                      Comment


                      • #12
                        Originally posted by Toolguy
                        If you grind a point on it, it makes a good center punch. They are very hard high quality tool steel.

                        So, if I understand you correctly, I need to buy a tool-post grinder, surface grinder, associated wheels, dressing tools, and tooling.

                        OK.

                        Time to buy more tools...

                        When I get more money...
                        --------------------------------

                        Thank you for the idea. You're right; they would make good center punches.

                        Thanks again,

                        - Bill

                        Comment


                        • #13
                          Originally posted by cryptrx
                          So, if I understand you correctly, I need to buy a tool-post grinder, surface grinder, associated wheels, dressing tools, and tooling.
                          I don't understand that remark - all you need is a bench grinder which is the most basic of tools in a home or any machine shop.

                          I would ad to what Toolguy wrote by saying temper it to a purple colour; striking tools that are really hard are a hazard in that they can shatter if not brought down to the right temper; ie the guys smacking away on centre drills ground to a point are offside imo.
                          in Toronto Ontario - where are you?

                          Comment


                          • #14
                            That is but one of a number of Ball Lock Punches used for different applications in stamping and forming dies. The advantage of a ball lock punch is that it can be replaced or resharpened when it becomes damaged or broken. Yes, they are very useful for home made center punches, centers, and even cutting tools when ground appropriately.
                            Jim (KB4IVH)

                            Only fools abuse their tools.

                            Comment


                            • #15
                              Originally posted by Mcgyver
                              I don't understand that remark - all you need is a bench grinder which is the most basic of tools in a home or any machine shop.

                              It was a weak attempt at humor.

                              Perhaps I should use one of those smiley things, but I don't think I could bring myself to use one.

                              Yeah, I sort of thought the tempering part was implied.

                              --------------------

                              Scishopguy, cutting tools sound interesting as well.

                              Thank you,

                              - Bill

                              Comment

                              Working...
                              X