Deburring tool for tubular workpieces

Abstract

The invention relates to a deburring tool (1) for tubular workpieces (2), comprising two or more blade parts (10) which are designed to deburr the workpiece (2). In order to further improve the design of a deburring tool of the type in question, according to the invention one, both or a plurality of the blade parts (10) is or are movably received in the deburring tool (1) for an adjustment in order to adapt the blade parts (10) to different diameters of the tubular workpiece (2), wherein workpieces (2) of different diameters can be deburred using the same blade part (10) or the same blade parts (10). The invention further relates to a cutting tool (4) for cutting tubular workpieces (2), comprising a deburring tool (1) for deburring such a workpiece (2).

Description

Description Deburring tool for tubular workpieces field of technology

[0001] The invention relates to a deburring tool for tubular workpieces, with two or more knife files designed to deburr the workpiece.

[0002] Furthermore, the invention relates to a cutting tool for cutting tubular workpieces, with a deburring tool for deburring such a workpiece, wherein the deburring tool is firmly connected to the cutting tool, wherein the deburring tool further comprises two or more blade parts which define a deburring plane and wherein the cutting tool has a cutting plane with respect to the workpiece to be cut.

[0003] Furthermore, the invention relates to a cutting tool for cutting tubular workpieces, with a deburring tool for deburring such a workpiece, wherein the deburring tool is firmly connected to the cutting tool and wherein the deburring tool has two or more blade parts. State of the art

[0004] Deburring tools of the type in question are known, for example, as hand-operated tools, but also as motor-driven rotary attachments. For deburring, and possibly also for chamfering the workpiece cutting edge resulting from a cutting operation, the deburring tool has at least one blade part with a blade-like blade section. By rotating the deburring By rotating the tool as a whole relative to the tubular workpiece to be deburred - or by rotating the workpiece relative to the deburring tool - the knife part or the several knife parts are guided along the cutting edge to be deburred in a removing manner.

[0005] Reference is made, for example, to EP 0 649694 A1 and EP 2 011 593 A1, each of which discloses a manually operable deburring tool that can simultaneously deburr the radially inner and the radially outer peripheral workpiece edges—relative to the longitudinal axis of the workpiece. To enable the deburring of workpieces with different diameters, these deburring tools offer a fixed blade for each diameter. Thus, for example, three or seven different workpiece diameters can be processed using a corresponding number of blades or blade sections.

[0006] Furthermore, EP 3222378 A1 (US 2017 / 15454603) discloses a cutting tool for cutting tubular workpieces, which has a deburring tool for three diameters for deburring or chamfering the cut workpieces. Summary of the invention

[0007] In view of the above-described prior art, one object of the invention is to advantageously design a deburring tool of the type in question. Furthermore, one object of the invention is to provide a cutting tool of the type in question that is advantageously designed, particularly in terms of handling.

[0008] A possible solution to the problem is given according to a first inventive idea in a deburring tool, which is designed to that one, both or more of the knife parts is or are accommodated in the deburring tool so as to be movable for adjustment in order to adapt the knife parts to different diameters of the tubular workpiece, wherein deburring on workpieces of different diameters can be carried out with the same knife part or the same knife parts.

[0009] According to the solution described above, an advantageous deburring tool is provided by which, due to the adjustability of one or more blade parts, tubular workpieces of different diameters can be machined with the same deburring tool. Preferably, the blade part(s) are continuously adjustable, so that all possible workpiece diameters between a tool-dependent smallest and largest diameter can be machined using the deburring tool.

[0010] By means of the proposed deburring tool, for example, workpieces with a diameter of approximately 5 to approximately 70 mm, further for example approximately 10 to approximately 60 mm, in particular approximately 15 to approximately 55 mm can be deburred, wherein between these minimum and maximum diameter values, the blade parts can also be adapted to all intermediate diameter values, for example to a diameter of 18 mm, 35.5 mm, 42.1 mm or even 54 mm.

[0011] With regard to the cutting tool, the problem can be solved by designing the deburring tool with one or more adjustable blade parts as described above and below. Thus, the cutting tool can be provided with a deburring tool adapted to the machining area of the cutting tool (possible diameter range to be cut), the The knife part or knife parts are or are adjustably accommodated in the deburring tool in such a way that this deburring tool can be used to preferably deburr all workpiece diameters that are to be cut with the connected cutting tool.

[0012] Furthermore, according to a further proposed solution, the cutting plane of the cutting tool and the deburring plane of the deburring tool can run essentially parallel to each other. This results in a convenient orientation of the deburring tool relative to the cutting plane of the connected cutting tool. The tubular workpiece, which may have been initially cut by the cutting tool, does not need to be re-gripped, rotated, or tilted out of the cutting plane after the cutting process, nor does the combination tool (cutting tool and deburring tool) need to be re-gripped or rotated to perform the subsequent deburring process.Rather, after the cutting process, the workpiece can be fed to the blade part or parts of the deburring tool by means of a spatial parallel displacement which is convenient for handling, after which the deburring process can be carried out by rotating, preferably rotating the workpiece back and forth in one direction and in the opposite direction around its longitudinal axis.

[0013] The features of the above-described independent claims are essential both individually and in any combination with each other, whereby further features of an independent claim can be combined with the features of another independent claim or with features of several independent claims, and further also with only individual features of one or more of the other independent claims.

[0014] For example, a cutting tool can be connected to a deburring tool, wherein the cutting plane and the deburring plane run essentially parallel to each other and the design of the deburring tool with one or more adjustable blade parts is given in accordance with the above and also the following design of the deburring tool.

[0015] Further features of the invention are explained below, also in the description of the figures, often in their preferred association with the subject matter of claim 1 or one or more of the further independent claims or with features of further claims. However, they may also be important in association with only individual features of claim 1 or one or more of the further independent claims or of the respective further claim, or each independently.

[0016] In a possible further embodiment, a drive part can be provided to move the blade parts, acting on all movable blade parts. A movement of the drive part is preferably translated into a displacement movement of all blade parts. For example, a rotational movement of the drive part can result in a linear displacement of the blade parts.

[0017] In a further preferred embodiment, a uniform displacement of all blade parts, preferably directed towards a same end point, is achieved via the drive part. For example, a radial displacement of all blade parts can be achieved with respect to a central axis of the deburring tool, which during the deburring process essentially coincides with a longitudinal axis of the tubular workpiece, this being achieved with a further exemplary rotational movement of the drive part about the above-described central axis of the Deburring tool. The same end point can be a point on the longitudinal axis.

[0018] In an arrangement of two or more blade parts, these can, as further preferred, be interspersed by an imaginary circular line running coaxially to the longitudinal axis of the deburring tool, regardless of the set position.

[0019] All movable blade parts can further be accommodated in a guide part. Such a guide part can be used, with preferential control via the drive part in the case of an arrangement of multiple blade parts, to guide all blade parts in the same direction and / or to coordinate them with one another with regard to the desired overall alignment of the blade parts.

[0020] For this purpose, the guide part can have a guide recess that defines the movement path of a movable blade part. Further preferably, the drive part can have a through-opening that serves to apply force to the movable blade part. The through-opening has an opening edge that enables the application of force. Preferably, the number of guide recesses and / or through-openings is adapted to the number of blade parts. Thus, in a preferred embodiment, the number of movable blade parts corresponds to the number of guide recesses and the number of through-openings.

[0021] The guide recesses, together with the access openings, can form a guide for the individual blade parts. For this purpose, the access openings can, for example, have a curved profile when viewed from a plane perpendicular to the center axis of the deburring tool. This can be a uniformly curved profile in the longitudinal direction of the respective through-opening, wherein, moreover, as is also preferred, all through-openings can be curved in the same direction.

[0022] The blade parts passing through these through-openings can also engage in linear guide recesses, whereby a preferred rotational displacement of the drive part having the through-openings through the linear guide recesses results in a correspondingly linear, more preferably strictly radial, direction of movement of the blade parts.

[0023] In a further embodiment, the deburring tool can have a tool base with a covering area. The tool base can be designed to receive or support the edge portion of the workpiece to be deburred, wherein the covering area can cover the drive part with the exception of possible travel paths for the movable blade part(s). The blade parts can extend through the covering area of the tool base with a partial section. The travel paths then to be provided for this purpose in the covering area can be formed in the form of rectilinearly extending recesses. Such recesses can furthermore optionally - with reference to a projection into the above-described transverse plane to the central axis of the deburring tool - essentially overlap with the guide recesses of the guide part.

[0024] In one possible embodiment, the tool base can simultaneously form the guide part, wherein in such a case the travel paths interrupting the covering area can be formed by the guide recesses.

[0025] The blade parts can, in particular, with their deburring sections, protrude from the cover area, furthermore in particular from an outer surface of the cover area which may serve as a support for the workpiece to be machined.

[0026] Each blade part can have a machining section which projects freely above the covering area, and a guide section which extends away from the machining section and, in the normal state of use, extends below the plane defined by the contact surface of the covering area and passes through at least the travel path in the tool base and the through-opening of the drive part and engages in the possibly separately provided guide recess of the guide part or also passes through this.

[0027] In a preferred embodiment, the drive part is arranged so as to be rotatable relative to the guide part and / or the tool base. The corresponding axis of rotation preferably coincides with the aforementioned central axis of the deburring tool as a whole.

[0028] A possible design in which one or more, or each, blade parts is designed for external and internal deburring has proven particularly advantageous in terms of handling. Further preferably, each blade part is designed such that, when the deburring tool is used, deburring of the tubular workpiece is performed simultaneously on the radial outside and the radial inside in a single operation.

[0029] Each blade part can be designed - particularly with regard to the processing section - essentially V-shaped, with a first blade section on a first V-leg and a second processing section on a second V-leg. The first machining section can be used, for example, for deburring along a radially inner edge of the workpiece, and the second machining section can be used, for example, for deburring along a radially outer edge of the same workpiece.

[0030] The V-legs can enclose an angle to each other of, for example, more than about 60° up to about 120°, more preferably up to about 90°, for example about 75°.

[0031] The tool base, like the drive part and / or the guide part in a further embodiment, can be designed in a disc-like manner. In a further possible embodiment, the tool base and its cover area can also be conical, whereby the outward-facing surface of the cover area can also contribute to centering the workpiece to be machined.

[0032] With a conical design of the tool base, the guide recesses of the guide part and the access openings of the drive part can also be designed, as is further preferred, to match a correspondingly extending conical surface. With such a design, the blade parts do not move in a substantially common plane extending transversely to the central axis of the deburring tool, but rather in a radial direction along a surface which, in a section in which the central axis is represented as a single line, can enclose an acute angle to the central axis of, for example, approximately 30 to approximately 60°, preferably approximately 45°.

[0033] The ranges or value ranges or multiple ranges specified above and below also include, with regard to the disclosure, all intermediate values, in particular in 1 / 10 increments of the respective dimension, and possibly also dimensionless. For example, the specification 60 to 120° also includes the disclosure of 60.1 to 120°, 60 to 119.9°, 60.1 to 119.9°, etc., while the specification 15 to 55 mm also includes the disclosure of 15.1 to 55 mm, 15 to 54.9 mm, 15.1 to 54.9 mm, etc. This disclosure can serve, on the one hand, to delimit a stated range limit from below and / or above, but alternatively or additionally, to disclose one or more singular values from a respectively specified range. Short description of the drawings

[0034] The invention is explained below with reference to the accompanying drawings, which, however, only represent exemplary embodiments. A part that is explained only with reference to one of the exemplary embodiments and is not replaced by another part in another embodiment due to the special feature highlighted therein is thus also described for this further embodiment as a possible part present at any rate. The drawing shows: Fig. 1 shows a perspective view of a deburring tool as a hand-held tool in a first embodiment with an associated workpiece to be deburred; Fig. 2 the deburring tool according to Figure 1 in a perspective exploded view; Fig. 3 shows the deburring tool according to Figure 1 when arranged on a cutting tool; Fig. 4 the view according to arrow IV in Figure 3; Fig. 5 shows an exploded perspective view of the cutting tool with the deburring tool and a holder of the deburring tool on the cutting tool; Fig. 6 the top view of the deburring tool according to arrow VI in Figure 1; Fig. 7 shows the enlarged, partially broken-away view of the area VII in Figure 6, relating to a first stop position of a drive part; Fig. 8 shows the section along the line VIII - VIII in Figure 7; Fig. 9 is a detail view corresponding to Fig. 7, relating to an intermediate position of the drive part; Fig. 10 shows the section according to Figure 8, but concerning the intermediate position according to Figure 9; Fig. 11 shows a further detail view corresponding to Fig. 7, but relating to a second stop position of the drive part; Fig. 12 shows the section according to Figure 8, but concerning the second stop position according to Figure 11; Fig. 13 is an enlarged view of a blade part of the deburring tool according to area XIII in Figure 2; Fig. 14 the section in plane XIV in Figure 13; Fig. 15 the view according to arrow XV in Figure 13; Fig. 16 shows a perspective view of another deburring tool as a hand-guided tool in a second embodiment with an associated workpiece to be deburred; Fig. 17 the deburring tool according to Figure 16 in a perspective exploded view; Fig. 18 the deburring tool according to Figure 16 when arranged on a cutting tool; Fig. 19 the top view of the deburring tool according to arrow XIX in Figure 16; Fig. 20 is an enlarged, partially broken-away perspective view of area XX in Figure 19, relating to a first stop position of a drive part; Fig. 21 the section along the line XXI - XXI in Figure 20; Fig. 22 the section along the line XXII - XXII in Figure 19; Fig. 23 shows section XXIII - XXIII in Figure 22; Fig. 24 is a detail view corresponding to Fig. 20, relating to an intermediate position of the drive part; Fig. 25 the section according to Figure 21, but concerning the intermediate position according to Figure 24; Fig. 26 shows a further detail view corresponding to Fig. 20, but relating to a second stop position of the drive part; Fig. 27 the section according to Figure 21, but concerning the second stop position according to Figure 26; Fig. 28 is an enlarged view of a blade part of the deburring tool of the second embodiment according to the area XXVIII in Fig. 17; Fig. 29 the section in the plane XXIX - XXIX in Figure 28; Fig. 30 the view according to arrow XXX in Figure 28; Fig. 31 the deburring tool of the second embodiment in an alternative arrangement on the cutting tool. Description of the embodiments

[0035] Shown and described, initially with reference to Figures 1 and 2, is a deburring tool 1 for deburring a preferably circumferential cutting edge 3 of a further preferably tubular workpiece 2.

[0036] Figures 1 to 15 relate to a first embodiment of the deburring tool 1 as a hand-held tool (see in particular Figures 1 and 2) or as a tool part connected to a cutting tool 4 (see in particular Figures 3 to 5). A second embodiment of the deburring tool 1 is shown in Figures 16 to 31, wherein in particular Figures 16 and 17 show the deburring tool 1 as a hand-held tool and Figures 18 and 31 as a tool part connected to a cutting tool 4.

[0037] In both embodiments shown, the deburring tool 1 essentially consists of a housing part 6 having a tool base 5, a drive part 7 with a handle 8 and a guide part 9. The housing part 6, the drive part 7 and the guide part 9 are arranged concentrically to a central axis x of the deburring tool 1, and are each essentially rotationally symmetrical with respect to a circumferential edge.

[0038] In the first embodiment shown in Figures 1 to 15, the tool base 5 as well as the drive part 7 and the guide part 9 have a plate-like or disc-like design, with a substantially parallel extension of the surfaces of these parts and more preferably parallel alignment of these surfaces to a deburring plane E running perpendicular to the central axis x (see Figure 8).

[0039] Alternatively, however, according to the second exemplary embodiment (Figures 16 to 31), a conical design of the tool base 5 as well as of the drive part 7 and the guide part 9, in particular of their surfaces, can also be provided, wherein the tool base 5 or the surfaces of the drive part 7 and the guide part 9 can enclose an acute angle a of, for example, approximately 45° with the above-described deburring plane E running perpendicular to the central axis x (see Figure 21).

[0040] The deburring tool 1 comprises a plurality of preferably identically designed blade parts 10. According to the illustrated embodiments, six blade parts 10 can be provided. Essential components of a blade part 10 are a machining section 11 and a guide section 12.

[0041] The guide section 12 has a hammerhead-shaped guide foot 13, which is connected to the machining section 11 via a rod-shaped guide neck 15. The geometric central axis y, which passes through the guide neck 15 in its longitudinal direction, extends perpendicular to a guide surface 14 on the underside of the guide foot 13.

[0042] The guide foot 13, in particular its guide surface 14, is formed in a plan view in which the central axis y of the guide neck 15 is represented as a point, essentially elongated rectangular, with a longitudinal extent which can correspond to approximately 1.5 to 2 times the width extent viewed transversely thereto, wherein the longitudinal extent can further result in a displacement direction r of the knife part 10 as a whole.

[0043] The machining section 11 of the blade part 10, which adjoins the guide neck 15 in the direction of the central axis y and at a distance from the facing surface of the guide foot 13, is essentially V-shaped. The resulting first V-leg 16 forms a first blade section 18, and the second V-leg 17 forms a second blade section 19. Both knife sections 18 and 19 each have a blade-like design, whereby the resulting blade edges 20 and 21 can enclose an acute angle ß of approximately 75° to each other.

[0044] The free extension length of each blade edge 20, 21, starting from a rounded blade base 24, in which the two blade edges 20 and 21 of the knife sections 18 and 19 merge into one another in a bead-like manner, is selected such that, in a given application area, workpieces 2 with different (pipe) wall thicknesses can be deburred in the area of the cutting edge 3 (see, for example, Figure 15).

[0045] The blade edge 20 of the first knife section 18 is preferably used for deburring the workpiece cutting edge 3 radially inwardly with respect to the central axis x of the deburring tool 1, and the blade edge 21 of the second knife section 19 is preferably used for deburring the workpiece cutting edge 3 radially outwardly, so that a chamfer 22, 23 can be produced both radially inwardly and radially outwardly of the workpiece cutting edge 3 in one deburring process.

[0046] In this case, as also shown, the blade edge 20 of the radially inner first knife section 18 can enclose an acute angle y of approximately 30 to 60°, for example approximately 45°, to a parallel P to the central axis x, and the blade edge 21 of the radially outer second knife section 19 can enclose an acute angle ö of approximately 15 to 45°, for example approximately 30°, to such a parallel P (see enlarged detailed illustrations in Figures 15 and 30).

[0047] The resulting V-opening 25 between the V-legs 16 and 17 extends essentially in a plane which passes through the guide foot 13 centrally and in the direction of its longitudinal extension.

[0048] As can be seen in particular from the sectional views in Figures 14 and 29, two blade edges 20 and 21, respectively, can be positioned on each blade section 18, 19 due to a depression 26 which is approximately V-shaped in cross section, wherein preferably only one or the other blade edge of the same blade section is substantially effective depending on the direction of rotation d of the workpiece 2 to be deburred.

[0049] The six blade parts 10 in the exemplary embodiments are arranged at equal distances from one another around the central axis x of the deburring tool 1. The guide feet 13 of the blade parts 10 are seated in groove-like guide recesses 27 of the guide part 9, with each guide recess Recess 27 has a width adapted to the width of the received guide foot 13 and extends in a radial direction with respect to the central axis x and with respect to a projection along the central axis x into a transverse plane, for example, into the deburring plane E. This results - in the projection or directly in the first embodiment - in a radial longitudinal extension of each guide recess 27 in the displacement direction r of the blade part 10.

[0050] The guide part 9 is mounted in the housing part 5 in a rotationally fixed manner. For this purpose, through-openings 29 can be provided in a circumferential housing wall 28, through which screws 30 protrude to engage in threaded holes 31 of the guide part 9.

[0051] The drive part 7 is mounted in the housing part 6 between the housing part 6 and the guide part 9 so that it can rotate about the central axis x. For this purpose, a plug-in axis 32 can be used, which is fixed at the ends in the area of the tool base 5 and in the area of the guide part 9 and which passes through the drive part 7 centrally along its surface extension.

[0052] The handle 8 of the drive part 7, formed on the edge, protrudes freely outward for actuation through a slotted recess 33 in the housing wall 28, which is circumferentially delimited on both sides. The wall sections 34 and 35 that circumferentially delimit the slotted recess 33 can form stop limits for the rotational displacement of the drive part 7. A limited pivot angle E of the drive part 7 of approximately 30 to 60°, furthermore, for example, approximately 45°, can be provided.

[0053] The drive part 7 has a number of through-openings 36 corresponding to the number of blade parts 10 as well as the number of guide recesses 27 in the guide part 9. These extend with reference on a projection along the central axis x on a transverse plane (for example deburring plane E) or directly in the first embodiment starting from a radially outer end in the direction radially inward along a curved line, preferably a uniformly curved line.

[0054] The width of each through-opening 36, viewed essentially in the circumferential direction, is adapted to the diameter of the guide neck 15 of the knife part 10 passing through the through-opening 36 with its guide neck 15.

[0055] This results in a slotted guide for the knife parts 10, which, supported by their guide feet 15 on a base 37 of the guide recesses 27, can be displaced in a radial direction r as a result of a rotational displacement of the drive part 7 and the associated dragging over the flanks of the through-openings 36 in the guide recesses 27.

[0056] In the case of a conical design of the tool base 5 according to the second exemplary embodiment, the sections of the drive part 7 and of the guide part 9 having the through-openings 36 and the guide recesses 27 also run conically in a correspondingly adapted manner, so that here - with reference to a section according to Figure 21 - a displacement of the knife parts 10 along an incline results, which is represented as a radial displacement in the above-described projection into a transverse plane to the central axis x.

[0057] The tool base 5 of the first embodiment, which extends essentially in a plane parallel to the deburring plane E, is recessed relative to a circumferential edge 38 of the housing wall 28 facing away from the guide part 9. On the inside of the wall, the edge 38 transitions circumferentially into a funnel-shaped, sloping base peripheral wall 39.

[0058] In projection along the central axis x to the guide recesses 27, radially aligned, slot-like travel paths 40 are formed in the tool base 5, which are penetrated in particular by the flat-part-like machining sections 11 of the blade parts 10. In addition to the interaction between guide feet 15 and guide recesses 27, a rotation lock of the blade parts 10 can also or alternatively be formed between the travel paths 40 and the machining sections 11.

[0059] The slot-like travel paths 40 extend from the radially inside in the region of a raised portion 41 formed centrally in the tool base 5 to the radially outside as far as the housing wall 28, preferably at least partially penetrating the base peripheral wall 39 and the edge 38 of the housing part 6.

[0060] Between the travel paths 40 there is a covering area 42 which essentially covers the drive part 7 in the axial direction.

[0061] All blade parts 10 of the deburring tool 1 can be displaced (exclusively) together and evenly due to the rotational displacement of the drive part 7 and the associated link guide. With respect to the lowest point in the respective blade base 24, all blade parts 10 are always located on a common imaginary circular line a running concentrically to the central axis x in every radial position of the blade parts 10 (see Figures 7, 9, and 11 for the first embodiment).

[0062] For deburring, the tubular workpiece 2 is fed with its end to be deburred (usually a cutting edge 3) to the deburring tool 1 in such a way that the cutting edge 3 is in the V-shaped opening 25 of the Knife parts 10 are picked up. If necessary, the positioning of the knife parts 10 must be adjusted in advance to suit the diameter of the workpiece 2.

[0063] When the deburring tool 1 is designed as a manually operable tool, finger recesses 43 are provided on the outside of the housing wall 28 for better grip. By grasping and rotating the exposed handle 8, the blade parts 10 are adjusted to the desired circular line a.

[0064] By inserting the cutting edge 3 to be deburred into the knife parts 10, the workpiece 2 is simultaneously centered.

[0065] During the deburring process, in which the workpiece 2 is rotated relative to the deburring tool 1 (or the tool relative to the workpiece) about the tool axis x in the direction of arrow d, preferably alternately, both the radially inner and the radially outer edge of the cutting edge 3 are preferably deburred simultaneously by the blade edges 20 and 21. Support and centering of the workpiece 2 can be achieved solely by edge-side support on the knife parts 10, particularly in the first embodiment shown in Figures 1 to 15 (see Figures 8, 10, and 12).

[0066] In a conical embodiment of the deburring tool 1 according to the second embodiment shown, in addition to the support on the blade parts 10, a centering contact can also be achieved directly or indirectly on the tool base 5 or the cover area 42.

[0067] For this purpose, rod-shaped contact elements 44 can be provided, which - with reference to a projection along the central axis x in a transverse plane to the center axis x - radially aligned, groove-like recesses 45 of the tool base 5 and are held there. The recesses 45 are designed such that the contact elements 44, which are preferably circular in cross section, protrude beyond the plane of the cover area 42 and thus ensure that the workpiece 2 to be deburred is contacted, in which the cutting edge 3 to be machined is always kept at a distance from the cover area 42 (see Figures 22 and 23).

[0068] For assembly, the rod-shaped contact elements 44 can be pushed into their operative position, for example from the outside, through bores 46 provided in the housing wall 28.

[0069] In addition to using the deburring tool 1 as a hand-held tool, the deburring tool 1 can also be a tool section, for example of a cutting tool 4 for a tubular workpiece 2, so that a workpiece 2 cut with the cutting tool 4 can be deburred without putting down the cutting tool 4 and subsequently picking up a separate deburring tool 1 simply by changing the tool section on the cutting tool 4.

[0070] The manually operable cutting tool 4 can, as shown, for example, in Figure 4, have a fixed handle part 47 and a pivotable handle part 48 acting on a ratchet mechanism (not shown in detail). The fixed handle part 47 is connected to a tool body 49. This forms two fixed tool jaws 50 and 51, opposite the fixed handle part 47, which define a cutting mouth 52.

[0071] A cutting part 53, which is pivotally mounted on the tool body 49 about a geometric axis z, can be driven through the cutting mouth 52 via the ratchet gear, via which cutting part 52 a workpiece 2 lying in the cutting mouth 52 can be successively severed with each pivoting operation of the movable handle part 48.

[0072] The cutting part 53 is movable in a cutting plane S running perpendicular to the axis z.

[0073] Figures 3 to 5 show the arrangement of a deburring tool 1 of the first embodiment, provided with adjustable blade parts 10 adapted to the diameter of a workpiece 2 to be machined, on the cutting tool 4. As can be seen in particular from Figure 5, the holder can be achieved via a holding plate 54, which can be fastened to the cutting tool 4, for example by means of a screw 55 across the broad side surface of the tool body 49.

[0074] A spacer 56 can be interposed between the tool body 49 and the facing bottom of the holding plate 54.

[0075] The deburring tool 1 can be fastened to the holding plate 54 using the screws 30 mentioned, which simultaneously penetrate holes 58 in fastening tabs 57 extending at an angle from the bottom of the holding plate 54.

[0076] With a selected attachment of the deburring tool 1 to the broad side surface of the tool body 49, the deburring tool 1 is oriented such that its deburring plane E runs essentially parallel to the cutting plane S resulting in the cutting tool 1 (see Figure 4). The center axis x of the deburring tool 1, whose orientation essentially corresponds to the orientation of the tubular center axis of the workpiece 2 during the deburring process, runs parallel to the pivot axis z of the cutting part 53.

[0077] A comparable alignment can also be achieved using the deburring tool 1 according to the second embodiment (see Figure 18).

[0078] Due to the parallel alignment of the planes (deburring plane E and cutting plane S), the workpiece 2 initially cut in the cutting plane S can be fed directly to the deburring plane E without repositioning or regripping and can be deburred there by means of a rotating movement of the workpiece 2 along the cutting edge 3.

[0079] Figure 31 shows a further possible arrangement of a deburring tool 1 provided with adjustable blade parts 10 adapted to the diameter of a workpiece 2 to be machined on the cutting tool 4. Even if the combination with a deburring tool 1 according to the second embodiment is shown in Figure 31, this is of course also possible alternatively with a deburring tool 1 according to the first embodiment.

[0080] According to this further possible arrangement of the deburring tool 1 on the cutting tool 4, the deburring plane E can also be aligned perpendicular to the cutting plane S. For this purpose, the deburring tool 1 can be fastened, for example, in the region of a narrow side surface of the first tool jaw 50.

[0081] The above statements serve to explain the inventions covered by the application as a whole, which each independently develop the state of the art by at least the following combinations of features, whereby two, several or all of these combinations of features can also be combined, namely:

[0082] A deburring tool, which is characterized in that one, both or more of the blade parts 10 is or are adjustably accommodated in the deburring tool 1, for adapting the blade parts 10 to different diameters of the tubular workpiece 2, wherein deburring on workpieces 2 of different diameters can be carried out with the same blade part 10 or with the same blade parts 10.

[0083] A deburring tool which is characterized in that a drive part 7 influencing all movable knife parts 10 is provided for moving the knife parts 10.

[0084] A deburring tool characterized in that all movable blade parts 10 are accommodated in a guide part 9.

[0085] A deburring tool which is characterized in that the guide part 9 has a guide recess 27 which defines a movement path of a movable blade part 10 and in that the drive part 9 has a through opening 36 which serves to apply force to the movable blade part 10.

[0086] A deburring tool which is characterized in that the through opening 36 has a curved course.

[0087] A deburring tool characterized in that the guide recess 27 has a rectilinear configuration.

[0088] A deburring tool, which is characterized in that the deburring tool 1 has a tool base 5 with a cover area 42, which covering area 42 covers the drive part 7 with the exception of possible travel paths 40 for the movable knife part(s) 10.

[0089] A deburring tool characterized in that the blade parts 10 protrude from the cover area 42 of the tool base 5.

[0090] A deburring tool, which is characterized in that the drive part 7 is arranged so as to be rotatable relative to the fixed guide part 9 and / or the fixed tool base 5.

[0091] A deburring tool characterized in that the blade part 10 is designed for external and internal deburring.

[0092] A deburring tool, which is characterized in that the knife part 10 is V-shaped, with a first knife section 18 on a first V-leg 16 and a second knife section 19 on a second V-leg 17.

[0093] A deburring tool characterized in that the tool base 5 is conical.

[0094] A deburring tool which is characterized in that, with a conical design of the tool base 5, the guide recesses 27 of the guide part 9 and the through openings 36 of the drive part 7 are also designed to fit a corresponding conical surface.

[0095] A cutting tool characterized in that the cutting plane S and the deburring plane E are substantially parallel to each other.

[0096] A cutting tool characterized in that the deburring tool 1 has one or more of the features of claims 1 to 13.

[0097] All disclosed features are essential to the invention (individually, but also in combination with one another). The disclosure of the application hereby fully incorporates the disclosure content of the associated / attached priority documents (copy of the prior application), also for the purpose of incorporating features of these documents into claims of the present application. The subclaims characterize, even without the features of a referenced claim, independent inventive developments of the prior art with their features, in particular for filing divisional applications based on these claims. The invention specified in each claim may additionally comprise one or more of the features specified in the above description, in particular those provided with reference numbers and / or specified in the list of reference numbers.The invention also relates to designs in which individual features mentioned in the above description are not implemented, in particular insofar as they are clearly unnecessary for the respective intended use or can be replaced by other technically equivalent means. List of reference symbols 1 deburring tool 29 through opening 2 Workpiece 30 Screw 3 Cutting edge 31 Threaded hole 4 cutting tool 32 thru axle 5 Tool base 33 Slot recess 6 Housing part 34 Wall section 7 Drive part 35 Wall section 8 Handle 36 Access opening 9 Guide part 37 Floor 10 knife part 38 edge 11 Processing section 39 floor-perimeter wall 12 guide section 40 travel 13 Guide foot 41 elevation 14 Guide surface 42 Cover area 15 Guide neck 43 Finger recess 16 first V-leg 44 contact element 17 second V-leg 45 recess 18 first knife section 46 bore 19 second knife section 47 handle part 20 blade edge 48 handle 21 Blade edge 49 Tool body 22 chamfer 50 tool jaw 23 Chamfer 51 Tool jaw 24 blade base 52 cutting mouth 25 V-opening 53 cutting part 26 Recess 54 Retaining plate 27 Guide recess 55 Screw 28 Housing wall 56 Spacer 57 Mounting bracket P Parallel 58 Bore S Cutting plane a Circular line a Angle d Direction of rotation ß Angle r Direction of displacement y Angle x Central axis ö Angle y Central axis EV the swivel angle z Axis E Deburring level

Claims

Claims 1. Deburring tool (1) for tubular workpieces (2), with two or more blade parts (10) which are designed for deburring the workpiece (2), characterized in that one, both or more of the blade parts (10) is or are accommodated in the deburring tool (1) so as to be movable for adjustment in order to adapt the blade parts (10) to different diameters of the tubular workpiece (2), wherein deburring on workpieces (2) of different diameters can be carried out with the same blade part (10) or with the same blade parts (10).

2. Deburring tool (1) according to claim 1, characterized in that a drive part (7) influencing all movable knife parts (10) is provided for moving the knife parts (10).

3. Deburring tool (1) according to one of the preceding claims, characterized in that all movable blade parts (10) are accommodated in a guide part (9).

4. Deburring tool (1) according to claim 3, characterized in that the guide part (9) has a guide recess (27) defining a movement path of a movable knife part (10).

5. Deburring tool (1) according to one of claims 2 to 4, characterized in that the drive part (7) has a through opening (36) serving to apply force to the movable blade part (10).

6. Deburring tool (1) according to claim 5, characterized in that the through-opening (36) has a curved course.

7. Deburring tool (1) according to one of claims 4 to 6, characterized in that the guide recess (27) has a rectilinear design.

8. Deburring tool (1) according to one of claims 2 to 7, characterized in that the deburring tool (1) has a tool base (5) with a covering area (42), which covering area (42) covers the drive part (7) with the exception of possible travel paths (40) for the movable blade part(s) (10).

9. Deburring tool (1) according to claim 8, characterized in that the knife parts (10) protrude relative to the covering area (42) of the tool base (5).

10. Deburring tool (1) according to one of claims 3 to 9, characterized in that the drive part (7) relative to the fixed guide part (9).

11. Deburring tool (1) according to one of claims 8 to 10, characterized in that the drive part (7) is arranged to be rotatable relative to the fixed tool base (5).

12. Deburring tool (1) according to one of the preceding claims, characterized in that the knife part (10) is designed for external and internal deburring.

13. Deburring tool (1) according to one of the preceding claims, characterized in that the knife part (10) is V-shaped, with a first knife section (18) on a first V-leg (16) and a second knife section on (19) a second V-leg (17).

14. Deburring tool (1) according to one of claims 8 to 13, characterized in that the tool base (5) is conical.

15. Deburring tool (1) according to claim 14, characterized in that, with a conical design of the tool base (5), the guide recesses (27) of the guide part (9) and the through openings (36) of the drive part (7) are also designed to fit a corresponding conical surface.

16. Cutting tool (4) for cutting tubular workpieces (2), with a deburring tool (1) for deburring such a workpiece (2), wherein the deburring tool (1) is firmly connected to the cutting tool (4), wherein the deburring tool (1) further comprises two or more blade parts (10) which predetermine a deburring plane (E) and wherein the cutting tool (4) has a cutting plane (S) with respect to the workpiece (2) to be cut, characterized in that the cutting plane (S) and the deburring plane (E) run substantially parallel to one another.

17. Cutting tool (4) according to claim 16, characterized in that the deburring tool (1) has one or more of the features of claims 1 to 15.

18. Cutting tool (1) for cutting tubular workpieces (2), with a deburring tool (1) for deburring such a workpiece (2), wherein the deburring tool (1) is firmly connected to the cutting tool (4) and wherein the deburring tool (1) has two or more blade parts (10), characterized in that the deburring tool (1) has one or more of the features of claims 1 to 13.

19. Deburring tool (1) or cutting tool (4), characterized by one or more of the characterizing features of one of the preceding claims.

Images