DE1945815U - DEEPHOLE OR GUN DRILLS. - Google Patents

Description

I ^{1 For} this application, the priority of 10.5.1962 from the sehwedisehen patent application 524-6 / 62 is claimed.

The invention "relates to so-called deep-hole or cannon drills. This type of drill is used to drill holes " whose length is much greater than their diameter.

A large part of the "previously" known drills of this Kind is that it is tedious or impossible to change the effective cutting diameter of the drill.

The main object of the invention "is therefore to provide a To create deep hole drills, the effective drilling diameter of which can be easily changed within wide limits.

^J .Ä. 321346 * 21.6,

Furthermore, the aim is "simple but effective means to create in order to adjust the position of a swiveling cutting tool holder and thus the drilling diameter change. ,

Another purpose of the invention "is to provide a firm and reliable placement of the cutting element and its holder in the body of the drill.

It can be seen that by locking the forging tool holder the effective diameter of the Eiefloehbohrer easily and quickly in any chosen position Wish is changeable. It is also easy to keep the holder and cutting tool in the chosen positions to be determined.

These and other features of the invention are described in detail in the following description in conjunction with the accompanying drawings on the basis of advantageous exemplary embodiments described. It showed:

Mg. 1: a partially sectioned side view

an embodiment of a drill according to the invention;

! ig. 2: a forehead view from the left of the ELg. 1 seen j

_ 2 - ■

Fig. 3: a plan view atf the representation in Fig. 2;

Fig. 4: a view similar to Fig. 3 of another Embodiment;

Fig. 5: a view similar to Figs. 3 and 4 third embodiment.

Reference is now made to the embodiment shown in FIGS. 1-5 Reference is made in which the drill body is designated 1. The drill body has built-in abrasion and sliding guide inserts 2 provided.

According to the principle of the invention, the drill has a cutting plate or cutting knife 3, which for example sucked Hard metal or the like. consists and rotatable and in various arbitrarily rotated positions by a clamping or Holding part 4 can be determined.

Furthermore, according to the invention, the cutting knife is in one Holder attached, which is pivotally connected to the drill rod or the drill body to the effective

ve3>
To migrate to the cutting diameter of the drill.

The cutting knife 3 has a circular or polygonal one Shape, while the holder 4 has a circular seat 5, which is the largest diameter of the cutting knife 3

- 3 -

is equivalent to. Per holder 4 also has a section 6, - ' which extends over the plate or the cutting knife 3. The section 6 prevents the cutting knife when Drilling lifts out of its position.

The holder 4 is by means of a screw 8, which is threaded engages in the holder 4 and is arranged in the drill body 1, against a base 7 and / or against the Cutting knife 3 clamped or clamped.

It is thus possible to pivot the cutting knife 3 into any desired pivoting position to be adjusted and to be determined by tightening the screw 8 in these positions. When a certain Section of the cutting knife is worn out, it is possible * to rearrange the same so that a new cutting section can be used. The cutting knife is all around Provide cutting edges around the circumference.

From the Pig. 1 and 2 it can be seen that the cutting knife 3 is conical, that is, that it has a certain Ireiwinkel. This angle can be achieved in such a way that the lower surface 9 of the cutting knife is designed to run slightly, for example Λ - ΊΟ, but preferably about 5 ° from the base 7 of the holder 4 upwards. The section 6 tapers accordingly towards the cutting edge of the cutting knife.

The recess or the seat 5. of the holder 4 is with reference open to the front and the outside, so that the

Cutting knife according to the "occurring during drilling: Stress is automatically pushed into its seat. The holder extends partially into a recess 10 in the drill body 1. The recess is approximately the same Height like the holder and prevents the holder from being lifted from its correct working position. The bottom of the Recess is aligned vorzugsw.se with the base 7 for the holder 4..

The holder 4 is together with the cutting knife 3 to the Screw 8, which also serves as a pivot bearing, can be pivoted. By pivoting the parts 3 and 4 it is. possible to use the "■" " effective diameter of the drill to change within wide limits.

Adjusting and fixing parts 3 and 4 in different Diameter adjustments can easily be carried out by means of an adjusting screw 11 which is inserted in a threaded hole of the drill body 1 and can be screwed into the recess 10, where it is attached to the holder 4 attacks.

The holder 4 is preferably, but not necessarily, embedded in the surface 12 of the drill body 1, wherein the holder can rest against the side walls of the depression. A certain amount of play must exist at 13 and 14 to allow the pivoting movement described above. The screw 8 can be inserted in the drill body 1 have sufficient play to allow considerable swiveling

- 5 ■ -

'"■"''■ fi ~

movement -and a fixed abutment, "for example on the - / - ψ. Wall 15 of the recess to allow (see Iig. 1).

Me very precise, easy and quick adjustment means the adjustment tube 11 "offers" previously unknown possibilities for precise work, and the possibility of the TJm turn or the rotation of the cutting knife 3 allows its maximum utilization "before it is re-sharpened got to. The cutting knife 3 can assume a variety of positions "before it has to be re-sharpened.

As can be clearly seen from the above, "offers the Invention "saves considerable time and money Material.

In the in the Ifig. 4 and 5 have embodiments shown the cutting knives 16 "or 17» ten "or seehs cutting edges, where "with the holder 18 or 19 corresponding seats 20" or 21 exhibit.

The holders 18 ″ and 19 have at their rear ends 24 and 25 rounded shapes, with the corresponding recess walls 22 or 23 have correspondingly rounded shapes, like this in the lig. 4 and 5 can be seen. These rounded, cooperating formations are well suited to allow the pivoting of the holder and at the same time effective To form stops.

6 -

Obviously, further designs than those shown are possible without deviating from the inventive concept. So other embodiments of the pivotable holder and the rotatable cutting knife are possible. Instead of the regular '- ■ moderate forms of Sehneidmessers more or less irregular polygonal shapes can be used. Likewise, the holder can be changed "considerably" within the scope of the invention.:

Claims (13)

DIPL.-ING.O.R.KRETZSCHMAR 2hamburgi f BEIM STROHHAUSE 34 Jf PATENTANWALT ruf 24 67 43 "" Stora Kopparbergs Bergslags Aktiebolag IPalun, Sweden May 6, 1963 Attorney file: 1,769 patent claims 1. Deep hole drill, characterized in that a cutting tool (3j 16, 17) is arranged in a holder (4, 18, 19) which can be pivoted with the drill rod or the drill body (1) is connected to change the effective cutting diameter of the drill. 2. Deep hole drill according to claim 1, characterized in that an adjusting and support screw (11 or 8) for Regulation and determination of the position of the pivotable holder (4) and the cutting knife (3) is provided. 3. Deep hole drill according to claim 2, characterized in that that the adjusting screw (11) is arranged in a threaded hole of the drill body (1) and in a bearing recess (10) protrudes in which the holder (4) is pivotably arranged. ACCOUNTS · DRESDNER BANK, ACCOUNT NO. 8599 ■ POST CHECK HAMBURG NO. 193760 4. Deep hole drill according to one of claims 1-3, characterized in that marked that the holder (4) sunk in a Surface (12) of the drill body (1) arranged and at least partially through the side walls (15) the submission is supported, and that the Xiager recess (10) in the drill body (1) has at least one surface which corresponds to the surface (?) Of the recess flees. 5. Deep hole drill according to claim 4, characterized in that the bearing recess (1Q) and the holder (16 or 19) of the cutting tool (16 or 1?) Both arcuate Have side walls (22, 24 | 23, 25) which correspond to one another and a pivoting movement for adjustment of the holder (18 or 19). 6. Deep hole drill according to one of claims 1-5 »thereby characterized in that the bearing recess (10) for the holder (4 ·.) one forward and with respect to the axis and direction of advance of the drill obliquely upward Has opening. 7. Deep hole drill according to one of claims 1-6, characterized characterized in that the clamping tube (8) for clamping of the holder (4) on the cutting knife (3) at the same time as a pivot axis for the holder (4) ! St. ": _ ρ - 8. Deep hole drills close to the. Claims 1 - 7 »thereby marked that the lower Hache.-of the cutting knife (3) 1 - 10 °, preferably about 5 ° »opposite the support surface (7) for the holder (4) is inclined. 9.! Deep hole drill according to one of claims 1-8, characterized characterized in that the cutting knife (3) is arranged to be rotatable and by means of any rotated positions of the holder (4) can be determined. 10. Deep hole drill according to claim 9 »characterized in that that the cutting knife (3) has an approximately circular circumference having. 11. Deep hole drill according to claim 9, characterized in that that the cutting knife (16, 17) has a polygonal circumference. 12. Deep hole drill according to claim 10 or 11, characterized in that the holder (4) has a kreiäSrmigen seat (5) for receiving the cutting knife (3) and a section (6) for clamping the cutting knife (3) in its position. 13. Deep hole drill according to one of claims 1 - 12, dadureh characterized in that the holder (4) is partially received in a recess (10) of the drill body (1), which is about the same height as the cutting knife (3) and prevents the holder (4) from its - 3 ■: - '-: ■;: ■ ■■'. ■■■■. - Working position is lifted. 14 ·. Tiea.oelil) oiirer naeli insprucli 13s thereby kemmzei leveled, that at least one side or surface of the dimension (10) coincides with the support surface (7) for the cutting knife (3) or the holder (4-) on the drill body (1).