DE8404345U1 - REAMER - Google Patents

Description

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DR.-INQ. EUβEM ¹ MAYEW '"Df & INte. BCKHARD WOLF

- 4 - A 12 864

i - dm 0.2.1984

Description

The invention relates to a reamer in the preamble «Tee of claim 1 specified genus.

For reamers with a radially inserted into the cutter head adjustable knife plate prepares the supply of the § Coolant on the frame! See or at> € h the front surface of the Cutter head difficulties, especially if the cutter head has a small diameter or as a stu » The knife head is designed in the shape of a fencer · Me An » Order of the for the radial adjustment of the cutter insert necessary adjustment elements and, if necessary, the Blade against a shoulder of the cutter head » pressing elements requires the arrangement of coolant » channels within the cutter head hlafigi impossible, so that a more secure dissipation of the

IS stroke speeds in large quantities of chips is no longer guaranteed · Also would the arrangement of Coolant channels within the cutter head to one Lead to a weakening of the strength of the cutter head

The invention is therefore based on the object, in the case of friction » Achieve safe removal of the chips of the aforementioned type without weakening the strength of the cutter head

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A 12 834,

I - dm p.2.1984

to ensure. It solves the ·· task with the in the indicator of the claim · 1 specified means as well as in further training this inventive construction with the the means forming the objects of the subclaims.

In the drawing there is a schematic design - Example of the cutter heads according to the invention · a reamer shown showing it

Flg. 1 is a side view of a stepped stepped Cutter head,

Pig 2 a side view of a simple cutter head,

Pig · 3 shows a vertical section through the cutter head according to the section line XXX - XXX of the Pig. 1"

The cutter head intended for a stepped bore according to Pig * H has a feil 1 and a felei-IS opposite the skin 1 fieren cross-section having part 2 with guide strips or »ti on · Xn longitudinal recesses of these parts 1 and 2 1st ie a cutter insert 12 or 22 is used, which by means of the Clamping claw »13 or 23 and clamping screws 13 'or · 23 * §e» be pressed against the shoulders of the cutter head 7, against whose skirt-like face the eleventh Hadeasehraräe rests · In the cutter head part 1 there is an axial hole IS for the coolant supply is provided, from which a channel 1 $ which opens into the rake face is branched off, which is at the ttafang of the The cutter head of a plate 19 is covered over a radial bore 1? the hole IS is connected to the eleventh groove 18, which is covered by the guide bar 11.

- 6 - A 12 864

i - dm θ.2.1934

Be that in Pig. 1 shown closes the front end of the groove 18 "in the rake face do * cutter head parts 2 hole thread channel 29, where part of the opening cross section a the hat tB freely loads, so that part of the coolant on the face against the ring fly of the Magserfeoparteile % escapes. On the circumference of the cutter head part 2, a cover plate 26 is provided which deflects the coolant flow in the direction of the rake face of the cutter head part 2.

Claims (7)

Expectations 1. Reamer with at least one arranged in the cutter head Cutter plate and guide strips arranged on the circumference of the cutter head, as well as one in the cutter head provided hole for the supply of coolant; characterized in that at least one coolant channel is formed by a longitudinal groove (18) covered by a guide strip (11) will. 2. Reamer according to claim 1, characterized in 9 «· indicates that the longitudinal groove (18) ■ is connected to an axial bore (IS) via a radial bore (17) « • «11 I. Hill · «·· · <(» I Il · • et «··! I I «fl · IKKl «! ■>) 1 (1 ·· t . ' J ^f ., ^F ί '..' S ... ^J -2.- A 12 864 i - dm 8.2.1984 3. Reamer according to claims 1 and 2 with a step-shaped offset cutter head, characterized by the fact that the '■ ring surface of the larger diameter \ the knife head part (1) opening longitudinal groove V18) with a nem partial cross-section in one of a guide bar - (21) covered the longitudinal groove of the smaller diameter having knife head part (2) opens. 4. Reamer according to Claims 1 and 2 with a stepped cutter head, characterized in that that the in an end-face annular surface of the having the larger diameter Knife head part (1) opening longitudinal groove (18) with a Partial cross-section into a in the rake face of the knife head part (2) with a smaller cross-section opening bore (25) opens 5. reamer according to claim 1, characterized that the longitudinal groove covered by a guide bar (11,21) a sieve after Has the outside narrowing cross-section. 6. Reamer according to claim 1, characterized in that the guide strip (11, 21) covering a longitudinal groove has a concave shape Has inner surface. 7. A reamer according to claims 1 and 2, characterized in that branching from the axial bore (ti) a mouth forming the clamping surface of the cutter head parts (1), urafangiieitig covered with a plate (19) Channel (16) ' •••• Sri · $:.:, ·· j.j. ···. It Il Il M «T I ί • j ί. .S Γ!. · «. · < III · Il II · «« · A IS 864 1 - dm Θ. 2 «1984 8 "Reamer to then Anipfüch" n 1 to 3, thereby marked, d «d by det · LKngenut (IS) an au »pinflSehe of the Ke9 *» rlcep £ part <2) opening, van »rlntr Plttt · (26) ifi> g« covered canal C25) refuses. • 4 -