DE1961832C - Tool for beveling the outer edge and for cutting the face of a pipe end - Google Patents

Description

_Can be geselzt that bein, twisting the tool regardless of the shape de. Pipe death for both the Abschrägschnitt door and _d en plan section results, a defined depth of cut and S automatically terminated who-Hen when the end face of the tube has the cutting operations a predetermined flatness

According to the invention, this object is achieved in that the tool is designed as a pot-like hollow body which can be pushed telescopically onto the pipe end and rotated thereon Inner wall are set separately from its bottom, and that the bevel stems around the Atechrag-Schmu.eie on a conical guide point of the inner bore and the plan cutting knife around the plan-bcnnm ^ s. Α of the inside designed as a limit stop With this configuration of the tool it is ensured that even with a completely irregular face of the pipe in the oblique cut and in the plane cut, only the given depth of cut is carried and that with Jörn predetermined limit stop at uer_ iu -,;, "the wall of the hollow body, the _{Schncidvorgpnge:,,} - _e are a friend when the end face of the tube, a - orgegebene Flanheit a. shows.

The bevel of the outside edge of the tube end .will after a design of the new tools . a determined by that the conical guide part ι f Tnnenborfrunlim area of the cut edges of the xtechagonal cutting knife and the nan-Schnejd-, nessers into a short cylindrical hole position, the diameter of which passes between the outer ■ arch knife of the pipe end and the diameter

^'E The termination of the cutting operations at vorgebharer flatness of the end face of the Ro' .- res let himself m, reach infachster manner in that the! 'Lan-cutting blade having a sliding surface, the perpendicular ^ CCHT directed to the longitudinal axis of the hollow body .st and extends over part of the pipe wall cross-section. _f . ^

Thus, the adjustment of the tool does not affect on ocm tube through the cutting chips WSS is further contemplated that the hollow body outside the Abschräg-sectional area of a enve, -fcrtc cylindrical recess of the inner bore Lift ye, to ^^^^^ "light by · **" ™ £ ^ _sleeve- shaped the bottom of the high ^ P ^he tool holder

Wertacug receptacle Λξ ■ J could be inserted takes d *. Ste «rtjeug eus ^ ^

and so the Verstelintrn.iar

dtTabaeschräote and flat-cut D das ^ ^tS ™ ^r ^ _ai / _a certain

End of pipe after d B ^^. Connection socket i. E.nsteckt.efefur d * zu ^ o dn _{Uung ds}

marked "ground ^ ⁿ * '* _d * _{r that} cylindrical WerkzeuBes orgenommen so ^ ^ j ^

Wall part in g ^ »^ _{breakthroughs}

Sehn t kan, the P «g» _{can be a} mark.

.3 ^on ^ _f . '"^ 4 _{t who} , when twisting« P ^^ g ¹ ^ üSer, marks the entire circumference of the ^ « ^z ^ _{f de clarification} line raw es ^ ^aut _{u a cinfac} hes and b. 1-

_{Application of} a truncated cone planschnejden from

^^ _s / _nk . _c , -ht to the pipe's longitudinal axis, the Rohenckn nau se ^ ^^ ^^ _φατ

nurh ^ ur e ^ nb- _? ^ _heTst ^ _ar , st un-i

is but stm _{in the ßbetrieb hl only}

^^ e. Be au rs t he g _ß ^ _behaves inappropriately ältnismäß.g

robust and, gene _also ^^^ 1 _C ndc

fa hg is, ■ ™ * _™ η _verhaltnisrn äßig short LCM ER-

brings. _{in iel of the} invention is in the

f '^^^ _a ^ _stel , t and will be used in the following drawings

explained. £, «* _{through dn raw d that}

F ^. ^^ ⁿ _elaboration - _sleUung contained tool on this in _{the n Who} kzeugendcs!.

Fg.- a _{dcs WerkzC} uges, wnl e.

^^ Much of it has broken away Sectional representation along the line

^^ / ^, ^^ λι along the line VV ge . _{f the P} , _an . _S chncidmesser

i |. _{by dn} fert.

tes hnd des κ ^^ representation of a transverse

F gj ^ _fc ^^ _p . ,

In the drawings, I denotes a KohrsiucK

»" ^^ "fSunststSffinaterial on vinyl or ar.de-

from rigid Mi _{d 2 that in} preparation

he Ba «s ™ ^ ™ £ to an adjacent pipe section for ^ WP _{a right-angled to the} pipe

^^ "^^^ _{to brinE} , _e n is. The pipe

The logical guidance of the tool on the pipe must not be impaired by this enlarged hole. For this reason, it is also provided that the recess in the area of the otTeLn end face of the hollow body passes over a huhrungsbund, the diameter of which is matched to the diameter of the pipe end

The use of the plan Schnetdmessers in uem pot-shaped hollow body of the tool is characterized erldchtert that the plan-cutting blade of the hollow body is mounted in a (Α. "" Dc ^ m transition region between the ff ^"s <* ^{e 'Wa} ^" dung part and The plan cutting knife can then be easily removed and sharpened.

^g The encapsulation of the tool, especially you.

twist required for cutting operations, stuck

*> J _{ta can,} it _is erfo de 2 both slanted and _so ^^^ that his forehead Avenge a location

^a ^ ^C _h t _to the pipe axis, around the Emfuh- « ^k £ Ch _R ζ _{or its} end working in an internal pressure rubber ring

" ^η " _ _1ιιηε5 . _Ρίηί η ₈ to suffer.

Kupp un | hun ^ g _Μ ^ _{ά and rec} htwnk-

?. pJanihncidcn of the pipe end 2 has a Jgen "to ^ u ^ ^ 3 _s any

^ ^ _em material, such as A um.mum appropriate side walls with an .long

guj - ^ JjJ _{which can be slid like a lclcskop} over the outer surface of the pipe section 1 """"'"' ° ™ Nahrungsmittel ( _{d) axial} displacement movement opposite

this is supported, and a bottom 5 forms with a. The cut edge IS makes a scraping Innemv; indung6, which has a stop for the cut, which is highly effective for creating the kcgel border of the cut when cutting flat or with a butt-like beveled end. In Fig. 4th Making the tube end 2 right-angled forms. The cut is exaggerated, and in Inncnbohrung 4 holds the pipe section I and the hollow 5 Fig. 7 the section is even further transfer body 3 concentric to each other, while a bcn. The intersection of the surface 14 with the core rotational movement and an axial displacement displacement of the pot-like hollow body 3 creates a both parts is possible relative to each other. The opening 16α for removing the chips. Inm -nhohrung 4 has an enlarged cylindrical. At the bottom of the hollow body 3 is a cross slit /

Recess 4 α over the greater part of its length io 17 with at a distance from one another in radial planes on. so that a short guide collar 4 is arranged for side walls 19 and 20 lying openly or outer end of the hollow body 3 is formed. The side wall 20 has one layer in one The enlarged recess 4 α prevents sufficient distance below the inner wall 6. Cutting chips, mud, dirt or the like. The outer so that when a plan cutting knife 21 on the Bodcr The surface of the plastic pipe in this area is torn apart by the cutting body, for example by means of a screw scratch or damage it. In the bottom 22 is set, the cutting edge 23 by dc wall of the hollow body 3 is a sleeve-like predetermined amount over the Innenwandui g '> Tool holder 7 square clear transverse protrudes, as shown in Fig. 3 The tendons: The cut, for example an insert made of steel edge 23, has a positive rake angle. dct material for a wheel wrench and the ratchet lever ao prove to be the most effective for making one with a square power transmission link or with · pipe end 2 with exactly perpendicular to the pipe axis by means of a power drive actuatable drive mechanism, the present face seen. When using the tool, the hollow

The hollow body 3 has such a counter-body 3 fit telescopically over the pipe end 2 over the pipe section 1 that it is pushed longitudinally on this and on the pipe section 1 by means of a is displaceable and slidable. and is a long wheel wrench or ratchet lever or other enough to hold the tool body and pipe section 1 with a suitable tool that is in the tool centering with respect to one another. The bottom 5 of the take 7 is inserted, on the Rohrstüclt 1 in Hollow body 3 adjacent is offset a short cylindrical rotating movement. While the rotary bore part 9 has a lower inner diameter than the 3 = movement, the effort required for turning the hollow outer diameter of the pipe section 1, but not the body 3, is a little easier smaller inside diameter than the outside pressure exerted in the axial direction is worked. The connection between the body 3 is set in rotation. Bd the machining cylindrical bore part 9 and the cylindrical direction of the pipe end 2 occurs first the cutting action Recess 4 α is tapered by a short to form the bevel by means of the cutting edge 15 frusto-shaped beveled guide part U formed in effect, which later encapsulates the planar cutting of the which is parallel to the conical surface that follows the pipe-beveled end by means of the cutting edge 23, piece 1 is to be worked up by removing material. 4 ° The pipe end that is still in its raw state 2 When the pipe section 1 for the first time in the hollow meets the inner wall 6 and limits the body 3 is introduced, smeared the rough pipe cutting depth of the cutting edge 23. The machining end 2, the beveled guide part 11, which ends the process practically with the fact that the plane-cut insertion of the pipe section 1 and limited with the tene end of the pipe section 1 on the flat Gleit-Fühmngsbund 4 6 cooperates so that the pipe 45 surface 24 of the plan cutting knife 21 in a to piece 1 is centered. Characterized in that the insertion of the longitudinal axis of the pipe section 1 vertical plane ^ it is limited pipe section 1, it is not possible to come to a stop. Regardless of whether there is an oversized depth of cut during the chem state, the pipe end 2 at the beginning of the Beveling the pipe machining process in its raw state, this ends with erides 2 comes $ »security with a perpendicular to the pipe's longitudinal axis

The beveling is done by bevel-cutting- lying clean face 25 odd with enter Knife 12 brings about this in a suitable manner, for example an outer conical contour 26, as in FIG as shown by means of screws 13 on an inclined surface Fig. 6 When the machining process 14 fe? «, Which is suitably parallel to the end, it is desirable to insert the tubular piece 1 in Conical surface is arranged, which by material removal 55 a fixed distance from the finished supply to the pipe section 1 is to be worked up. To mark the end of the and which is indicated by a small amount from the surface extent to which the pipe section 1 11 extends inward. This means that a Nfög- has to be inserted into the coupling. To this end possibility of regulating the thickness of the through which are the side walls of the hollow body with a Cut edge 15 of the bevel cutting knife 12 is created from 60 opening 27 for receiving a Markienmgsgelragcnen chip, as in FIG. 4 and also stifles provided. The pipe section I is at the end of the is shown in Fig. 7, where the Γbcnc of the cutting edge machining operation nut a corresponding is represented by a dashed line ISa. Provided for brand if the brand is the specified Rigid vinyl-based plastic material is the distance from which can indicate the end face 25 of the pipe stub edge 16 cut out exactly perpendicular to the pipe longitudinal cutting edge, preferably from the end face 25 of the pipe stub edge 16 cut flat at a right angle 65 without overhang or play.

1 sheet of drawings

Claims (8)

ι 2 The invention relates to a tool for patent claims: bevelling of the outer edge and for face cutting the face of a pipe end that has a cutting I. Tool for beveling the outer edge device with a bevel cutting edge and and for cutting the face of a pipe 5 has a plan cutting edge, which opposite the end, a cutting device with a pipe is rotatable and axially displaceable.
Bevel cutting edge and a flat cutting edge in particular with pipes made of plastic material, which has opposite the pipe, the pipe end after a long period of storage or is rotatable and axially displaceable, characterized after Jem transport often a ragged or characterized that the tool as io out of round pressed shape. Before the use of a pot-like hollow body (3) is formed, the tube of this type must be slanted telescopically slidable onto the tube end (2) as well as straightened so that the front and on it can be rotated, and with one side ^ cEach end of the pipe is perpendicular to the pipe's longitudinal axis, oblique cutting knife (12) in the bottom end area, in order to divide a clean connection and joint between its inner bore (4) and a plan 15 between two pipe cutting knives (21) to be connected in the area of the inner wall to get. In addition, the outer edge (6) is set separately from its bottom (S) to bevel the end of the pipe in order to facilitate the insertion of the pipe and the bevel cutting knife (12) in the connecting sleeve,
around the bevel cutting depth on a conical There are various devices for cutting guide part (11) of the inner bore (4) and the 20 gene of a pipe end known in which a plan Schnudmesser (21) around the plan cutting depth cutting device with a bevel -Cutting edge on Jer designed as a limit stop can be rotated relative to the pipe and can be axially displaced-the inner wall (6) protrudes. is cash. These devices result in the 2 Tool according to claim 1, characterized by the flatness of the end face of the pipe Indicates that the k mix guide part (11) 35 skills when the plan section is over the entire the inner bore (4) extends in the area of the sectional wall thickness of the pipe. Disadvantage of this edges (IS, 23) of the bevel cutting knife (12) sen devices is that no cut limit and the plan cutting knife (21) is possible in a short time, if the unevenness of the front side cylindrical bore.-part! (9) passes, whose of the pipe are balanced. So it always has to Check the diameter between the outer diameter 30 again by removing the device. of the pipe of (2) and the diameter of the whether the face of the pipe is fully exposed The cut edge of Planschn't and Bevel Schniii is captured at an angle and is therefore flat located. In many cases, the bevel of the pipe should be. 3. Tool according to claim 1 or 2, characterized in particular for pipes with a large wall thickness, only characterized in that the plan cutting knife (21) 35 extend over part of the wall thickness of the pipe, has a sliding surface (24) which is perpendicular to the Longitudinal axis of the hollow body (3) is directed and known devices no plan section on the can be reached over part of the cross-section of the pipe wall » Cut extends. This deficiency is remedied by another known pro 4. Tool according to one of the preceding 40 direction, by two cutting processes with one claim, characterized in that the cutting device with two cutting edges are guided simultaneously from the hollow body (3) outside the bevel cut. For this, the pipe end must be set in an area of an extended cylindrical recess bracket. The inner bore (4) is on this bracket (4 a). the cutting device guided axially adjustable The axial 5. Tool according to claim 4, characterized in that 45 adjustment of the cutting device is indicated by the fact that the recess (4 α) is limited in the fitting on the bracket. In addition to the fixation of the end of the pipe in the holder, which takes away the open end face of the hollow body (3) for a long time, a guide collar (4 b) merges, the formation of which and the considerable effort involved in dividing the diameter of the pipe into the diameter of the pipe direction comes as a further disadvantage of this known (2 ) is coordinated. 50 th device that the plan cutting is not 6. Tool according to any of the preceding is simple. The definition of the pipe end in the Claims, characterized in that the hardening is from the furthest above Plan cutting knife (21) in a transverse slot part of the pipe end determines the adjustment path of the (17) of the hollow body (3) is attached, which in the shoe device may be too small to accommodate a Transition area between the cylindrical 55 to get a clean plan section. The end of the pipe must Wall part and the bottom (S) are arranged - then adjusted again in the holder, net is. In addition, it remains at the discretion of the operator 7. Tool according to one of the preceding person, how far the pipe end is cut flat. Claims, characterized in that it is in particular not guaranteed that the Bottom (5) of the hollow body (3) a hülsenför- 60 plan section is carried out only as far as to Mige tool holder (7) has achievement of the desired cut is necessary. 8. Tool according to one of the preceding Also an adjustability of the stop on the Claims, characterized in that the bracket would not solve the problem, since the Cylindrical wall part in a given ab- absolutely necessary adjustment path yes for each stands to the cutting edge (23) of the Plan-Schneid- 65 pipe end can be different. messersUl) has openings (27). The invention is based on the object To improve the tool of the type mentioned at the outset so that it simply sits on the end of the pipe.