Strange clamps

Strange clamps

Home Forums The Tea Room Strange clamps

Viewing 13 posts - 1 through 13 (of 13 total)
  • Author
    Posts
  • #413534
    Trevorh
    Participant
      @trevorh

      Hi all,

      looking for help in identifying these clamps I have been given.

      2019-06-09 19.38.44.jpg

      Here are the what I think are some kind of setting screw note the head

      2019-06-09 19.40.17.jpg

      I have 2 sets of these but have no idea what they are used for

      I have more photo's in my album – Clamping tools

      Thanks

      Trevor

      Edited By Trevorh on 10/06/2019 11:58:20

      #35508
      Trevorh
      Participant
        @trevorh
        #413538
        YouraT
        Participant
          @yourat

          I'll bet the "setting screws" as you call them are hardened and have a range of different sized holes through them.

          This looks very much like a cross-drilling jig – the cut outs on the bushes are for the retaining screw shown in your album.

          Y.

          #413539
          Plasma
          Participant
            @plasma

            +1 for cross drilling jig. Looks a nice piece of kit, I built the Hemingway finger plate clamp and it has bushings for different sized drills.

            Mick

            #413540
            Neil A
            Participant
              @neila

              This looks like a fixture for cross drilling round bar. The items in the second picture are interchangeable drill bushes that fit in the cross bar at the rear of the fixture. There should be a screw in the tapped hole that engages with the cutout on the head of the bush to stop it coming out when the drill is withdrawn. A handy fixture.

              Neil

              #413541
              HOWARDT
              Participant
                @howardt

                Looks like a production shaft cross drilling jig. The bushes are Grip drill bushes for guiding the drills. Used to use Grip in the 70's, they used to make the whole range of fixture components in those days in competition with WDS. Not sure when Grip expired, bushes now made by B&T in Nottingham and others.

                #413542
                Trevorh
                Participant
                  @trevorh

                  Hi Yourat

                  yes that correct the different screws all have different dia holes through them and are hardened

                  So its called a cross drilling jig and so assume that as Neil A says i guess if I need to drill a round bar/shaft then its clamped and use the setting screws (guide bushes) to control the drill

                  Many thanks for this info

                  regards trevor

                  #413544
                  Trevorh
                  Participant
                    @trevorh

                    Howardt

                    thanks you for your description, combined with the others it now makes sense as there were also some end stops to butt up against so that what ever was being drilled could be replicated

                    I have uploaded some more photo's of the both sets that I have, they even came in there own wooden protective boxes with cut outs for each of the various parts

                    Now I just need a use for them

                    Regards

                    Trevor

                    #413550
                    old mart
                    Participant
                      @oldmart

                      Used all the time by toolmakers and jig makers, the drilling bushes are hard and quick detachable by gripping and twisting the knurled top. The jig would also be used on drilling machines for production runs.

                      #413554
                      geoff adams
                      Participant
                        @geoffadams14047

                        drill bushes for drill jigs so you can drill and ream in one op in the same jig using different sizes holes in the bush they drop into a harden guide the shape allows the bush to be turned to lock under a cap screw so the bush does not come out when drilling made many jigs using these

                        Geoff

                        #413555
                        Trevorh
                        Participant
                          @trevorh

                          Thanks lads

                          the parts must have been quite small as the largest hole in the guides is only 4mm and goes down to 0.5mm

                          overall length of the base is only 200mm

                          cheers

                          trevor

                          #413563
                          YouraT
                          Participant
                            @yourat

                            A more general purpose version would be something from the Reglus range.

                            I have one of these (not mine, but identical, and the pictures are better!):

                            http://www.nielsmachines.com/en/reglus-universal-drilling-jig.html

                            Don't use it much, but invaluable when needed!

                            #413660
                            Trevorh
                            Participant
                              @trevorh

                              Plasma, I have sent you a PM

                              regards

                              Trevor

                            Viewing 13 posts - 1 through 13 (of 13 total)
                            • Please log in to reply to this topic. Registering is free and easy using the links on the menu at the top of this page.

                            Latest Replies

                            Home Forums The Tea Room Topics

                            Viewing 25 topics - 1 through 25 (of 25 total)
                            Viewing 25 topics - 1 through 25 (of 25 total)

                            View full reply list.