摘要:
Tool holder device has an elongated main body presenting a rearwardly extending back portion (2) to be received inside a turret body groove and locked therein by means of wedge means and a forwardly extending portion (3) having an obliquely arranged abutment surface (4) and an outwardly facing surface (5) defining a seat for the insert tool holder. The adjoining surface (6) of the main body having an elongated groove (7) having parallel walls also in parallel with the outwardly facing surface and a bottom perpendicular to same surface and in an intermediary position a number of threaded bores (8) extending essentially in parallel with the outwardly facing surface (5). The groove being adapted to receive two or more L-shaped clamping pieces (9) having one leg (10) with an end portion with a thickness corresponding to the width of the main body elongated groove (7) and another leg (11) having an abutment surface (12) for engaging the insert holder. Each clamping piece (9) includes through bores (13) for screws essentially in parallel with the leg 10 and an adjoining abutment surface for the screw head. The clamping piece in a transition portion (15) between its two legs having a mutual bending facilitating recess or groove (16).
摘要:
In an arrangement of an insert holder and a cutting insert, the insert (3) is received in a recess (2) in the insert holder and secured therein by clamping action between portions of the insert holder which define the recess. The recess for the insert (3) is defined in one direction by a substantially unyieldable portion formed with a straight guiding portion (4,5) coacting with a straight edge of the insert, and in the other direction by a nose-shaped resilient portion (8) formed with a shallow projection extending towards the straight guiding portion and having a defined top (12) of small extent in the direction of the recess. The cutting insert (3) comprises a shank (14) whose one side is formed with a guide ridge (15) adapted to seat on the guiding portion (4,5) of the recess (2) and whose opposite side comprises an inclined or bevelled portion (16) adjacent the free end of the shank (14). The bevelled portion (16) passing into a substantially straight surface portion (17) which serves as a sliding and abutment surface for the top (12) of the projection and which, in the direction away from the inclined or bevelled portion (16), converges slightly towards the insert side having the guide ridge (15). The free end (10) of the nose-shaped portion (8) is adapted to serve as an end stop for the cutting insert and to engage with a substantially transverse surface (19) on the head of the cutting insert.
摘要:
Slot or track milling tool device wherein a number of inserts having an insignificant axial extension are arranged in seats at the peripheral portion of an essentially disc shaped tool holder body. The inserts, being of a per se known kind, have at least one abutment face arranged obliquely relative to the insertion direction of the insert. The abutment face in contact with an abutment portion at each seat of the tool holder body. Each such abutment portion being a tongue shaped portion integral with the tool holder body. For each tongue shaped portion, there is arranged a rotatable clamping device having a surface arranged in a cam or eccentric fashion. The rotatable clamping device is intended to displace the tongue shaped portions so that an abutment point thereon reaches an engagement with and remains in engagement with the obliquely rearwardly facing engagement surface of the insert.