DE102020111782A1 - Carrier assembly, in particular tool carrier assembly and method for their production - Google Patents

Abstract

The invention relates to a carrier assembly (10) with at least one hollow body (12) which is arranged around an axis of rotation (D). Each hollow body (12) has several preferably straight web sections (13). Two directly adjacent web sections (13) are connected to one another via a connecting section (14), which preferably extends along a circular arc. A component (11), in particular a tool or cutting tool, is arranged directly or indirectly on at least one receiving body (21). The at least one hollow body (12) is supported on a support unit (30) or a support body (37). The at least one receiving body (21) is held by means of the at least one hollow body (12) and / or the support unit (30).

Description

The invention relates to a carrier assembly which is designed for arranging at least one component for rotating drive about an axis of rotation. The carrier assembly can, for example, carry at least one cutting tool as a component and thus be designed as a tool carrier assembly. However, the carrier assembly is also suitable for other applications in which at least one component is to be mounted rotatably about an axis of rotation, in particular at high speeds, for example for clutches or brakes. In these cases, the component can be a clutch body or a brake lining body.

Tool carriers are used, for example, in rotary tools with cutting inserts arranged thereon. Such a tool carrier is, for example, off DE 10 2018 101 407 A1 known. The tool body can consist of a metal or a metallic alloy. The cutting bodies can be made from polycrystalline diamond.

Such tool carriers have a very high mass and low natural frequencies. Due to the mass, the speed cannot be increased arbitrarily when driving around the axis of rotation. The high mass also leads to a correspondingly high energy consumption, for example when positioning the tool with machine axes in a machine tool and when changing the speed.

Instead of steel or steel alloys, light metals such as aluminum could be used. However, a tool carrier made of aluminum is only suitable for certain tasks because of its lack of strength.

Starting from the state of the art, it is an object of the present invention to create a carrier assembly which has a particularly simple structure and ensures high stability with low weight.

This object is achieved by a carrier assembly with the features of claim 1 or claim 18th solved. This object is achieved by a method for producing the carrier assembly according to the claims 17th or 19 solved.

The carrier assembly according to the invention is used to mount or support at least one component rotatably about an axis of rotation. The at least one component is preferably a tool, in particular a cutting tool. In this case, the carrier assembly forms a tool carrier assembly. For example, a milling cutter, a planer, a drill head or another tool can be formed by means of the tool carrier assembly.

The carrier assembly can, however, also serve to carry another component that is to be mounted rotatably about an axis of rotation at high speeds, for example a clutch lining or a brake lining. In general, the carrier assembly can be used in various technical fields.

The carrier assembly has a plurality of hollow bodies which are arranged next to one another in an axial direction parallel to the axis of rotation and which each enclose the axis of rotation. Each hollow body has several web sections. Two directly adjacent web sections are each connected to one another to form a curved connecting section. The curvature of the connecting sections is such that it runs concave on the inside towards the axis of rotation (inner radius) and convex on the outside facing away from the axis of rotation (outer radius). In particular, the curvature of the connecting sections is constant, so that each connecting section extends along an arc of a circle.

The web sections preferably extend straight between two connecting sections. Alternatively, the web sections can also be curved, in particular convex towards the axis of rotation and concave curved away from the axis of rotation, the curvature of the web sections at any point being less than the curvature of the connecting sections and preferably less than the reciprocal of the minimum distance of the web section from the axis of rotation.

The hollow bodies can overall have a polygon-like shape, the connecting sections forming the corner areas of the polygon.

The carrier assembly also has a support unit on which each hollow body is supported at several support points spaced apart in the circumferential direction about the axis of rotation. The support points can be arranged on at least one component of the support unit that extends in the axial direction, for example on a support body or a plurality of individual pins.

The carrier assembly also has at least one receiving body. There are preferably several receiving bodies. Each receiving body is set up to remove the at least one component, for example a tool or cutting tool. Each receiving body is held by means of one or more of the hollow bodies present. For example, can the at least one receiving body can be attached directly to a hollow body, in particular to a web section. In another embodiment, the support unit and the hollow bodies can work together to hold the at least one receiving body.

The carrier assembly has a modular structure with very few parts. The forces acting on the components during operation of the carrier assembly can be very well supported by the hollow bodies. The support assembly forms an inner cavity or inner free space along the axis of rotation, around which the support unit or the hollow bodies are arranged. The mass of the carrier assembly is low and therefore enables high speeds, as well as high dynamics in the case of speed changes and / or positioning movements of the carrier assembly. The energy consumption when positioning and changing the speed is low. Chips can be removed through the internal clearance and / or cooling lubricant can be supplied or removed. The carrier assembly also has a higher natural frequency compared to known carrier assemblies of the same axial and radial dimensions.

The hollow bodies are preferably not surrounded radially on the outside by a further outer hollow body in the circumferential direction.

The modular design of the carrier assembly also enables damaged or worn components to be replaced individually. The modular structure also enables scaling using the same individual parts. For example, the number of hollow bodies arranged axially next to one another can be varied in order to vary the axial length of the carrier assembly.

Simple structural designs of the carrier assembly can be implemented, the manufacture of which is not subject to very narrow tolerance limits. As a result, the costs for the carrier assembly are low.

It is advantageous if each hollow body has at least three web sections or, for example, exactly three web sections. All hollow bodies can have the same number of web sections or a different number of web sections.

It is advantageous if all the web sections of a hollow body are of the same length.

It is also preferred if all the hollow bodies of the carrier assembly are made identical.

In a preferred embodiment, each receiving body is attached directly to one of the hollow bodies, in particular to a web section on the outside facing away from the axis of rotation. The outer sides of the connecting sections facing away from the axis of rotation are preferably free of receiving bodies.

At least in the areas in which the hollow bodies are in contact with a fastening body, the hollow bodies are preferably designed without openings. The hollow bodies are preferably entirely free of openings or depressions, so that the tensile force that they can absorb in the circumferential direction is not reduced in places by holes, cutouts or other openings.

In one embodiment, the at least one receiving body is not in contact with the inside facing the axis of rotation, but is attached to the outside of a hollow body. The at least one receiving body can be supported axially on a further hollow body and / or on a further receiving body. Additionally or alternatively, a pin of the support unit can extend in the axial direction through the receiving body. This further improves the fixing of the receiving body in the circumferential direction and radially with respect to the axis of rotation.

In some exemplary embodiments, the at least one receiving body is held on the support unit and in particular on a support body of the support unit by means of one or more of the existing hollow bodies. The at least one hollow body and the support body thus work together to hold the at least one receiving body. The support body can be a hollow body that is closed in the circumferential direction about the axis of rotation. The support body can extend along or coaxially to the axis of rotation.

The support body preferably has flat sides which are arranged regularly distributed in the circumferential direction around the axis of rotation, at least on the outer side of the support body facing away from the axis of rotation. The flat sides preferably extend in the axial direction along all existing hollow bodies and / or along the entire supporting body. The flat sides can adjoin one another in the circumferential direction, so that an axial edge extending in the axial direction is formed between two immediately adjacent flat sides. The support body can thus have a polygonal outer contour in a cross-sectional plane at right angles to the axis of rotation. Additionally or alternatively, the inner contour can also be polygonal in the cross-sectional plane.

The number of flat sides of the support body of the support unit is preferably greater than the number of web sections of the hollow body through which the support body extends. In one embodiment, the number of flat sides can be at least or exactly twice as large as the number of web sections of the hollow body through which the support body extends. It is advantageous if each hollow body with several or all of the web sections rests against a respective associated flat side of the support body.

In addition or as an alternative to the support body, the support unit can have a plurality of pins extending in the axial direction, which are preferably arranged at a distance from one another in the circumferential direction and in particular are regularly distributed. The support unit can also have a holding body. The holding body is arranged adjacent to the hollow bodies in the axial direction. Optionally, two holding bodies can also be present, between which the hollow bodies are arranged.

It is advantageous if several or all of the curved connecting sections of each hollow body are assigned to one of the pins of the support unit. As a result, a support point can be formed between a pin and an associated curved connecting section. At the support point, the inside of the curved connecting section rests against the associated pin. Several connecting sections of different hollow bodies can rest on a pin.

A pin can each be assigned to one or more web sections of a hollow body or also to several of the existing hollow bodies. This pin can be arranged opposite the outside facing away from the axis of rotation and thus outside the hollow body without penetrating it. The pin can extend through a receiving body if a receiving body is arranged on the associated web section. As a result, the receiving body can be supported both on the hollow body and on the pin of the support unit.

In a preferred embodiment, each hollow body and / or the optionally present support body of the support unit is formed integrally. Each hollow body and / or the optionally present supporting body can consist of a fiber-reinforced composite material.

In a preferred embodiment, there can be a first group and a second group, each with at least one hollow body. It is also possible to provide more than two groups of hollow bodies. The hollow bodies of a common group are preferably designed identically and each have the same rotational position about the axis of rotation. The hollow bodies of different groups are arranged offset from one another by an angle of rotation in the circumferential direction about the axis of rotation. If there are several groups of hollow bodies, hollow bodies of different groups alternate in the axial direction. Two hollow bodies directly adjacent in the axial direction thus belong to different groups.

The hollow bodies arranged immediately adjacent in the axial direction can rest against one another or, alternatively, be arranged at a distance from one another.

A carrier assembly according to one or more of the exemplary embodiments described above can be produced as follows:

First, a support unit is provided. The at least one receiving body is arranged on the support unit and / or on one of the hollow bodies. The hollow bodies are arranged around the axis of rotation and are supported on the support unit. Each receiving body is held on a web section of the hollow body and / or the support unit. A component can be attached to each receiving body. The attachment can take place as the last step, but can also be carried out at an earlier point in time during the assembly or manufacture of the carrier assembly.

In a variant of the method, the hollow bodies can be provided as rigid, ready-made hollow bodies before they are arranged around the axis of rotation. As an alternative to this, it is also possible to produce the hollow bodies during the arrangement. For this purpose, a reinforcing fiber strand or roving made of reinforcing fibers can be wound around the support unit and / or around the at least one receiving body. The reinforcing fiber strand can be impregnated or soaked beforehand or afterwards with a curable plastic. The impregnated or soaked reinforcing fiber strand can then be cured in order to form the hollow body.

In a further carrier assembly according to the invention, in particular a tool carrier assembly, the hollow body extends helically around the axis of rotation. The at least one receiving body can be held by means of this hollow body. For this purpose, the hollow body can work together with a support unit. The at least one receiving body, viewed radially to the axis of rotation, can be arranged between one or more sections of the hollow body and the support unit and thus held. Additionally or alternatively, the at least one receiving body can also be attached to the Be attached to the hollow body. A receiving body which is fastened to the hollow body can additionally be supported by the support unit, for example by a pin of the support unit extending through the receiving body.

In this embodiment, the hollow body is preferably produced by winding at least one reinforcing fiber strand around the axis of rotation and around the support unit and then curing a plastic material with which the reinforcing fiber strand is impregnated. The impregnation or impregnation of the reinforcing fiber strand can take place before or after the wrapping.

• 1 und 2 ein Ausführungsbeispiel einer Trägerbaugruppe, beispielsweise einer Werkzeugträgerbaugruppe in unterschiedlichen Ansichten,
• 3 bis 8 unterschiedliche Zustände während des Herstellens der Trägerbaugruppe gemäß den 1 und 2,
• 9 und 10 ein weiteres Ausführungsbeispiel einer Trägerbaugruppe, beispielsweise Werkzeugträgerbaugruppe, in unterschiedlichen Ansichten,
• 11 bis 16 unterschiedliche Zustände beim Herstellen der Trägerbaugruppe gemäß den 9 und 10,
• 17 und 18 ein weiteres Ausführungsbeispiel einer Trägerbaugruppe, beispielsweise Werkzeugträgerbaugruppe, in unterschiedlichen Ansichten,
• 19 und 20 Ausführungsbeispiele für Aufnahmekörper und Bauteile, beispielsweise Werkzeuge, zur Verwendung mit der Trägerbaugruppe gemäß den 17 und 18,
• 21 bis 23 unterschiedliche Zustände beim Herstellen der Trägerbaugruppe gemäß den 17 und 18,
• 24 und 25 ein weiteres Ausführungsbeispiel einer Trägerbaugruppe, beispielsweise Werkzeugträgerbaugruppe, in unterschiedlichen Ansichten,
• 26 einen Aufnahmekörper und ein Bauteil, beispielsweise Werkzeug, zur Verwendung mit der Trägerbaugruppe gemäß den 24 und 25,
• 27 bis 30 unterschiedliche Zustände beim Herstellen der Trägerbaugruppe gemäß den 24 und 25,
• 31 bis 34 unterschiedliche Zustände beim Herstellen der Trägerbaugruppe gemäß den 24 und 25 bei einem alternativen Verfahrensablauf,
• 35 und 36 ein weiteres Ausführungsbeispiel einer Trägerbaugruppe in unterschiedlichen Ansichten,
• 37 eine schematische Prinzipdarstellung eines Ausführungsbeispiels einer Trägerbaugruppe mit einem schraubenförmigen Hohlkörper und
• 38 bis 40 jeweils eine schematische Prinzipdarstellung unterschiedlicher Formen für die Realisierung einer Trägerbaugruppe.

Advantageous embodiments of the invention emerge from the dependent claims, the description and the drawings. Preferred exemplary embodiments of the invention are explained in detail below with reference to the accompanying drawings. In the drawings show:

• 1 and 2 an embodiment of a carrier assembly, for example a tool carrier assembly in different views,
• 3 to 8th different states during the manufacture of the carrier assembly according to FIGS 1 and 2 ,
• 9 and 10 Another embodiment of a carrier assembly, for example a tool carrier assembly, in different views,
• 11 to 16 different states in the manufacture of the carrier assembly according to the 9 and 10 ,
• 17th and 18th Another embodiment of a carrier assembly, for example a tool carrier assembly, in different views,
• 19th and 20th Exemplary embodiments for receiving bodies and components, for example tools, for use with the carrier assembly according to FIGS 17th and 18th ,
• 21st to 23 different states in the manufacture of the carrier assembly according to the 17th and 18th ,
• 24 and 25th Another embodiment of a carrier assembly, for example a tool carrier assembly, in different views,
• 26th a receiving body and a component, for example a tool, for use with the carrier assembly according to FIGS 24 and 25th ,
• 27 to 30th different states in the manufacture of the carrier assembly according to the 24 and 25th ,
• 31 to 34 different states in the manufacture of the carrier assembly according to the 24 and 25th in the case of an alternative procedure,
• 35 and 36 another embodiment of a carrier assembly in different views,
• 37 a schematic diagram of an embodiment of a carrier assembly with a helical hollow body and
• 38 to 40 each a schematic representation of the principle of different forms for the realization of a carrier assembly.

In the 1 and 2 Figure 3 is one embodiment of a carrier assembly 10 illustrated. The carrier assembly 10 is set up to have at least one component 11 to wear that at a distance from an axis of rotation D. is arranged. The carrier assembly 10 is also set up to rotate about the axis of rotation D. to be driven. For example, the carrier assembly 10 be designed as a tool carrier assembly in which the component 11 is formed by a tool. The tool carrier assembly can be set up to be clamped in a tool spindle of a machine tool.

The direction parallel to the axis of rotation D. is called the axial direction A. designated. One direction around the axis of rotation D. around is called the circumferential direction U designated.

The components 11 can for example be designed as tools and in particular cutting tools or cutting plates. They are circumferential U and / or in the axial direction A. arranged at a distance from one another. The cutting edges of the cutting tools can be the same distance from the axis of rotation D. exhibit. The tool carrier assembly formed in this way can, for example, form a milling cutter, a drill, a plane or the like.

The carrier assembly 10 can also be used in other technical fields than tools that are driven in rotation, in particular in all other applications in which a component rotates about an axis of rotation D. must be stored on an outer circumference, for example in the case of brakes, clutches or the like.

The carrier assembly 10 has several hollow bodies 12th on. The hollow body 12th are preferred designed identically and can have a polygon-like shape.

In the embodiment according to 1 and 2 each has a hollow body 12th a substantially triangular or triangular-like shape.

Every hollow body 12th has several and, according to the example, three web sections 13th . In the exemplary embodiment, the web sections are 13th straightforward. The web sections 13th have the same length. Two immediately adjacent web sections 13th are each via a curved connecting section 14th connected with each other. The curved connecting section 14th extends in the embodiment along an arc of a circle. The curvature of the connecting section 14th is designed such that on the axis of rotation D. facing side of the connecting section 14th a concave shape and on that of the axis of rotation D. facing away from the outside a convex shape of the connecting portion 14th results.

In the exemplary embodiment, each is a hollow body 12th integrally formed without seams and joints. The hollow body 12th consists, for example, of a composite material which has reinforcing fibers embedded in a plastic matrix. The reinforcing fibers preferably extend in the direction of the hollow body 12th around the axis of rotation D. stretched, that is, in the web sections 13th essentially rectilinear and in the connecting sections 14th along the circular arc of the respective connecting section 14th . A plurality of reinforcing fibers are in the axial direction A. and / or in a direction perpendicular to the axis of rotation D. arranged side by side.

The wall thickness of the hollow body is preferably 12th in the web sections 13th and in the connecting sections 14th same size. The cross section of the hollow body 12th is rectangular according to the example, with the dimension in the axial direction A. is greater than perpendicular to the axial direction A. . The hollow body 12th have, for example, no recess or opening. As a result, the reinforcing fibers can move without interruption essentially in the circumferential direction U around the axis of rotation D. extend and the density of the reinforcing fibers can be substantially constant.

The hollow body 12th are divided into two or more groups in the exemplary embodiment. In the embodiment according to 1 and 2 are a first group 17th and a second group 18th present, each group 17th , 18th one or more hollow bodies 12th having. The number of hollow bodies 12th in each group 17th , 18th can be the same or different sizes. The one in the 1 and 2 illustrated embodiment of the carrier assembly 10 assigns the first group 17th two hollow bodies 12th on while the second group 18th just a hollow body 12th having. The number of hollow bodies per group 17th , 18th can be the same or different and preferably differs by a maximum of one.

The hollow body 12th a common group 17th or. 18th are in the axial direction A. arranged in alignment. They point in the circumferential direction U around the axis of rotation D. the same rotational position or rotational alignment in each case.

The hollow body 12th different groups 17th , 18th are around an angle of rotation α in the circumferential direction U arranged offset or rotated to each other. The angle of rotation α is 60 ° in the exemplary embodiment. The amount of the angle of rotation α can be chosen so that in a plane perpendicular to the axis of rotation D. looks at each bisector through a web section 13th the hollow body 12th the first group 17th an angle bisector through the connecting sections 14th the hollow body 12th the second group 18th forms.

The angle of rotation is preferably α calculated as follows: α = 180 ° / (n * g), where n is the number of web sections 13th the hollow body 12th and g is the number of groups.

The hollow body 12th are around the axis of rotation D. arranged such that the connecting sections 14th with a view along the axis of rotation D. or in a projection plane at right angles to the axis of rotation D. in the circumferential direction U are evenly distributed ( 2 ). In the axial direction A. are the hollow bodies 12th different groups 17th , 18th arranged alternately. Between two hollow bodies 12th the first group 17th is each a hollow body 12th the second group 18th arranged.

The carrier assembly 10 also has at least one receiving body 21st on. In the embodiment according to 1 and 2 is on every web section 13th each hollow body 12th a receiving body 21st attached, for example by a material connection and / or an adhesive connection.

The receiving body 21st has a base 22nd with which he is on an outside surface 23 of the associated web section 13th rests flat or is connected flat ( 5 ).

The receiving body 21st has a central part in the embodiment 24 . On the central part 24 is on that of the base 22nd opposite side a recording 25th for attaching the component 11 and arranged or formed, for example, according to the cutting tool. The component 11 or cutting tool can be connected to the receptacle by a material connection and / or adhesive connection and / or form-fitting connection and / or force-fitting connection 25th to be ordered. For example, the component 11 screwed or soldered on.

In the central part 24 has the receiving body 21st the greatest height when viewed in a direction perpendicular to its base 22nd or at right angles to the outer surface 23 on which the receiving body 21st is appropriate. The height increases starting from the central part 24 in the circumferential direction U around the axis of rotation D. or along the associated web section 13th on both sides. The receiving body preferably extends 21st along the complete extension of a web section 13th between the two connecting sections 14th who have made the web section 13th limit.

The central part 24 of the receiving body 21st is preferably through a hole 26th in the axial direction A. fully interspersed.

The carrier assembly 10 also has a support unit 30th on. The support unit 30th is set up to the hollow body 12th to support or to carry.

The one in the 1 and 2 illustrated embodiment has the support unit 30th one in the axial direction A. next to the hollow bodies 12th arranged holding body 31 on. The holding body can have a disk-shaped or ring-shaped, for example circular shape. The holding body 31 is coaxial to the axis of rotation D. arranged.

To the support unit 30th also include several and, for example, six pens 32 extending in the axial direction A. extend and with one end on the holding body 31 are attached. The pins are at a distance from the axis of rotation D. and in the circumferential direction U arranged at a distance from one another. According to the example, the center axes of the pins are 32 on a common cylinder surface around the axis of rotation D. arranged. On the pens 32 can the hollow body 12th prop up.

According to the example, each body is hollow 12th at several support points 33 supported. The support points are in the circumferential direction U distributed and preferably arranged regularly distributed. The support points 33 are between several pens 32 and several or all of the connection sections 14th each hollow body 12th educated. At every support point 33 lies one of the axis of rotation D. facing inside of the connecting section 14th on a pen 32 at. According to the example is a first subset of the pens 32 to form the support points 33 with the first group 17th the hollow body 12th set up, while a different from the first subset of the second subset of the pens 32 to form the support points 33 with the second group 18th the hollow body 12th is set up.

As can also be seen, the pins belonging to the first subset extend 32 outside the interior of the hollow body 12th the second group 18th and the pens belonging to the second subset 32 extend outside the interior of the hollow body 12th the first group 17th . The outside of a hollow body 12th extending pins 32 penetrate the holes 26th the receiving body 21st . The receiving body 21st are therefore both on a hollow body 12th , as well as on a pen 32 the support unit 30th supported.

On the support unit 30th and, for example, according to the holding body 31 is preferably a clamping body 35 arranged, which is integral with the holding body 31 formed or on the holding body 31 can be attached. The clamping body 35 is set up for clamping in a chuck of a machine tool. The clamping body 35 can for example be designed as a shaft, in particular as a hollow shaft cone. The design of the clamping body 35 can correspond to a defined standard. The clamping body 35 extends along or coaxially to the axis of rotation D. . The clamping body is according to the example 35 on the to the pens 32 opposite side of the holding body 31 arranged.

As a modification of the one in the 1 and 2 illustrated embodiment, the holding body 31 omitted. Each of the pens 32 extends through at least one receiving body 21st and is located at at least one support point 33 at a connection section 14th at.

In the 3 to 8th is a schematic of the manufacture of the carrier assembly 10 of the embodiment from the 1 and 2 illustrated. First, the holding body 31 the support unit 30th provided on which the pins 32 to be ordered ( 3 and 4th ). There are also a number of hollow bodies 12th provided, for example, three hollow bodies 12th . On every hollow body 12th become the receiving body 21st at the web sections 13th arranged. As explained, in the exemplary embodiment, each hollow body 12th three web sections 13th on each of which a receiving body 21st is attached ( 5 ).

Like it in 5 is shown, the base area 22nd of the receiving body 21st run in a plane that is parallel to the plane in which the outer surface is 23 of the associated web section 13th extends. Alternatively, the base area 22nd also a concave or convex have a curved course and the receiving body 21st can in such a way to the web portion 13th be attached that the receiving body 21st is elastically deformed until the base area 22nd extends in the plane in which also the outer surface 23 of the associated web section 13th is arranged. The receiving body generates in this elastically deformed state 21st Force on the hollow body 12th or the web section 13th .

The one with the receiving bodies 21st provided hollow body 12th are then attached to the support unit 30th arranged ( 6th to 8th ). The hollow bodies 12th according to the membership in the first group 17th or to the second group 18th in the desired rotation position on the pins 32 in the axial direction A. attached.

In the 9 and 10 a further embodiment is illustrated. In contrast to the previous exemplary embodiment, the support unit is 30th executed differently. The support unit 30th has, for example, instead of the holding body 31 a support body extending along or coaxially to the axis of rotation 37 on. The support body 37 is in 11 illustrated separately. He points to one of the axis of rotation D. facing away from the outside several in the circumferential direction U Flat sides arranged evenly 38 on. According to the example, the flat sides extend 38 in the axial direction A. completely along the entire support body 37 . The flat sides 38 have a length in the axial direction A. , which is at least as large as the total length of the axial direction A. next to each other arranged hollow body 12th . The support body 37 extends completely in the axial direction A. through all hollow bodies 12th through.

The outer contour of the support body 37 corresponds, for example, to an inner contour created by a projection of all inner contours of all hollow bodies 12th onto a projection surface at right angles to the axis of rotation D. is limited. In the exemplary embodiment, the support body 37 an outer contour that is in a plane perpendicular to the axis of rotation D. considered corresponds to a regular hexagon. According to the example, two immediately adjacent flat sides go 38 forming an in the axial direction A. running edge into each other. The flat sides 38 could alternatively to this in the circumferential direction U be connected to one another by a radius or some other transition geometry.

The number of flat pages 38 is preferably at least or exactly twice as large as the number of web sections 13th the hollow body 12th .

The support body 37 is preferably also designed as a hollow body to support the weight of the support assembly 10 to keep it low. For example, the support body 37 inside also have a polygonal cross-section.

Like it in the 9 and 10 is illustrated, the support unit 30th in addition to the support body 37 also several in the axial direction A. extending pins 32 have, analogous to the exemplary embodiment, as it is in connection with the 1 to 8th was explained. In contrast to the previous exemplary embodiment, the pins are 32 not with a holding body 31 connected, but each pin extends through at least one receiving body 21st and is located at at least one support point 33 at a connection section 14th at.

The pencils 32 could also be omitted in a modified exemplary embodiment, not shown. The receiving body 21st are then not directly on the support unit 30th held or supported.

Otherwise, the structure corresponds to the first exemplary embodiment, so that reference can be made to the explanations given above.

In all of the exemplary embodiments explained above, each forms a hollow body 12th together with at least one and, for example, three receiving bodies 21st and optionally one component arranged thereon 11 a unit. All existing units can be constructed identically. The number of these building blocks in the axial direction A. may vary depending on the desired axial length of the support assembly 10 or one in the exemplary embodiment based on the carrier assembly 10 educated tools. The structural units can adjust the angle of rotation α in the circumferential direction U staggered in two or more groups.

In the 11 to 16 is the manufacture of a carrier assembly 10 according to the embodiment from 9 and 10 illustrated schematically. The support body 37 will be provided. There are several structural units, each based on a hollow body 14th and several receiving bodies 21st produced ( 12th ). The structural units are then placed on the support body 37 in the desired rotational position in the circumferential direction U on the support body 37 arranged as it is in the 13th to 15th is illustrated. The pencils 32 are after arranging the units in the axial direction A. plugged in ( 15th ). At the end of the manufacturing process, the components are preferably 11 and, for example, tools or cutting tools on the receiving bodies 21st at the respective recording 25th attached ( 16 ).

17th and 18th show another embodiment of the carrier assembly 10 . In this embodiment, the support unit is 30th through the support body 37 educated. The hollow body 12th are designed analogously to the previous exemplary embodiments and in a first group 17th and a second group 18th around the axis of rotation D. each arranged offset. The hollow body 12th lie with the web sections 13th on each associated flat side 38 the support body 37 at. The connecting sections 14th each have a distance from the flat side adjacent in the radial direction 38 of the support body 37 on. This is in the radial direction between the connecting section 14th and the associated flat side 38 a gap 39 educated. If any group 17th , 18th several hollow bodies 12th has, align their spaces 39 in the axial direction A. .

Every space in between 39 or the spaces that are aligned with one another in the axial direction 39 can be used to hold a receiving body 21st to keep. The receiving body 21st is thus between the in the axial direction A. juxtaposed connecting sections 14th the same group 17th , 18th of hollow bodies 12th and the flat side opposite in the radial direction 38 of the support body 37 held. On the receiving body 21st can the components 11 (for example tools or cutting tools) are arranged.

In the 19th and 20th are different embodiments of receiving bodies 21st illustrates that in the embodiment of the carrier assembly 10 according to the 17th and 18th can be used. The receiving bodies each have a base 22nd , which preferably extends in one plane and which on a flat side 38 of the support body 37 can be arranged. The cross-sectional contour of the receiving body 21st is to the contour of the space 39 customized. At the base 22nd opposite side has the receiving body 21st for example a comb or vertex 40 that extends in the axial direction A. extends and perpendicular to the axial direction A. has a circular arc-shaped contour, the radius of which is the inner radius of the curved connecting sections 14th corresponds to. At the top of the head 40 a flank closes on each side 41 with the two flanks 41 can enclose an angle which corresponds to the angle which two at a common connecting portion 14th adjacent web sections 13th of the hollow body 12th lock in. At least on one of the two flanks 41 can take a shot 25th for attaching one or more components 11 to be available. The geometry of the recording 25th is due to the geometry of the components 11 customized. Like it in 19th is shown schematically as an example, several narrow individual components 11 or a single wider component 11 at the recording 25th attached.

In 20th is another way of arranging a component 11 on the receiving body 21st illustrated. Instead of the component 11 immediately the recording 25th to arrange, an adapter body 42 be provided by the recording 25th for the component 11 having. The adapter body 42 has two foot parts in the exemplary embodiment 43 that there is a space in between 44 limit. The two foot parts 43 can on the flanks 41 of the receiving body 21st applied and the adapter body 42 on the receiving body 21st attached. The adapter body 42 can in the axial direction A. on one or both sides by an existing hollow body 12th and in particular a connecting portion 14th a hollow body 12th be supported.

In the 21st to 23 is a schematic of the manufacture of the carrier assembly 10 for the embodiment according to 17th to 20th illustrated. 21st shows the arrangement of the hollow bodies 12th in the two groups 17th , 18th , each by an angle of rotation α are offset from one another. Following this, the receiving body 21st in the axial direction A. through the aligned spaces 39 be pushed ( 22nd ). Finally, the components can 11 (Here: cutting tools) on the receiving body 21st be arranged, either directly or indirectly by means of the adapter body 42 .

The 24 and 25th show another embodiment of the carrier assembly 10 , which is constructed similarly to the exemplary embodiment according to FIGS 17th and 18th so that reference can be made to the description above. The difference between the exemplary embodiments lies mainly in the design of the receiving body 21st . 26th shows the embodiment of the receiving body. Analogously to the embodiment according to 19th or 20th the receiving body has a base 22nd which extends, for example, in one plane. The flanks 41 and the crown 40 extend in the axial direction A. not along a straight line or plane, but are executed in a stepped manner. The receiving body 21st has at least one and, for example, at least two along the one flank 41 over the crown of the head 40 and further along the other flank 41 extending groove-like depression 48 on. Every groove-like depression 48 has a bottom 49 , which is divided by two in the axial direction A. spaced side flanks is limited.

The contour of the floor 49 is preferably on the inner contour of the space 39 adapted and corresponds, for example, to the inner radius of a curved connecting section 14th and the course of the adjoining end areas of the web sections 13th . Which are attached to the depressions 48 in the axial direction A. subsequent protruding sections 50 are when the carrier assembly is manufactured 10 in the axial direction A. adjacent to one or more connecting sections 14th one or more hollow bodies 12th placed on the ground 49 and each in a recess 48 be included or at least partially protrude there. The receiving body 21st according to 26th is thus by two hollow bodies in cooperation with the support body 37 the support unit 30th held.

In a modification of the embodiment shown, a depression could be used 48 be open on one axial side and only on the other axial side by a side flank following the bottom 49 be limited.

On at least one flank 41 and especially at the protruding portions 50 can have one or more recordings 25th for a component 11 be educated. For example, a single component 11 at the recording 25th of the receiving body 21st attached as it is in 26th is illustrated. Alternatively, several narrow components could also be used 11 and, for example, two or three components 11 at each protruding section 50 to be ordered.

The carrier assembly 10 according to the 24 to 26th can be produced as shown schematically in the 27 to 30th is illustrated. The hollow body 12th in this exemplary embodiment preferably form only a single group and are all in the same rotational orientation about the axis of rotation D. arranged ( 27 ). Following this are several receiving bodies 21st and, for example, three receiving bodies 21st at all connection areas according to the example 14th the hollow body 12th arranged so that the connection areas in the recesses 48 are arranged. The base areas 22nd the receiving body 21st are the axis of rotation D. facing ( 28 ). The support body can then 37 along the axis of rotation D. in the axial direction A. be inserted so that any base area 22nd a receiving body 21st on an assigned flat side 38 of the support body 37 is applied. Optionally, each web section can 13th also on one of the flat sides 38 of the support body 37 concern (compare 25th ). The receiving body 21st are after inserting the support body 37 fixed. On the receiving bodies 21st can then the components 11 to be attached ( 30th ).

In the embodiments described so far, the hollow bodies were 12th provided as finished components. Alternatively, it is also possible to use the at least one hollow body 12th only when the carrier assembly is manufactured 10 to finish. For example, in the exemplary embodiment, the carrier assembly 10 according to the 24 to 26th first of all the support body 37 to be provided ( 31 ) and then the receiving body 21st on one flat side each 38 of the support body 37 put on ( 32 ). The groove-shaped depressions are aligned 48 in the circumferential direction U around the axis of rotation D. . In the several and, for example, three in the circumferential direction U aligned depressions 48 each becomes a reinforcing fiber strand 51 wound from a large number of individual reinforcing fibers, preferably in several turns in the circumferential direction U around the axis of rotation D. . The reinforcing fiber strand 51 can be formed by a roving. The reinforcing fiber strand 51 or the plurality of reinforcing fibers of the reinforcing fiber strand 51 can be soaked or impregnated with a non-hardened plastic. The soaking or impregnation can be carried out before or after the wrapping. The soaked or impregnated reinforcing fiber strands 51 are then cured, for example by physical and / or chemical action, for example by heat input or irradiation with light in a predetermined wavelength range (for example UV light). The hardening process creates a hollow body in each case 12th educated. Then the components 11 and, according to the example, the cutting tools on the receiving bodies 21st to be attached ( 34 ).

In the 35 and 36 is another embodiment of the carrier assembly 10 illustrated. The carrier assembly 10 corresponds essentially to the exemplary embodiment according to FIG 31 to 34 , the wells 48 in the receiving bodies 21st along a helical line around the axis of rotation D. are arranged. This allows a helical hollow body 12th made and in the wells 48 to be ordered. As in the previously described embodiment, the receiving body can first 21st on the support body 37 arranged and then a reinforcing fiber strand 51 made of a large number of reinforcing fibers helically around the axis of rotation D. through all the wells 48 the receiving body 21st to be wrapped. One or more helical wraps can be made. The reinforcing fiber strand 51 was previously or is then soaked or impregnated with a plastic that can be cured after being wrapped around a rigid, helical hollow body 12th to build. Apart from the helical or helical shape here, the hollow body is analogous to the previously described embodiment according to FIG 31 to 34 produced.

Finally, one or more components 11 and, for example, cutting tools on each receiving body 21st to be ordered.

In 37 is the principle of a helical around the axis of rotation D. wound or extending hollow body 12th illustrated. The parting 40 the receiving body 21st are here through in the axial direction A. illustrates running edges of a prism. The course of the helical hollow body 12th is shown very schematically by a band winding around the prism.

In the 38 to 40 is shown on the basis of a respective schematic diagram that the carrier assembly in a plane at right angles to the axis of rotation D. can have different prismatic contours and can preferably each form a regular polygon with, for example, four, five or six corners. A substantially triangular contour, as it is based on the exemplary embodiments according to FIGS 1 to 37 is not absolutely necessary. Both the hollow body 12th , as well as the optionally available support body 37 can be in a plane perpendicular to the axis of rotation D. considered to have any polygonal and in particular regular polygonal contours.

The invention relates to a carrier assembly 10 with at least one hollow body 12th around an axis of rotation D. is arranged. Every hollow body 12th has several preferably straight web sections 13th . Two immediately adjacent web sections 13th are each via a connecting section that preferably extends along a circular arc 14th connected with each other. On at least one receiving body 21st is directly or indirectly a component 11 , in particular a tool or cutting tool arranged. The at least one hollow body 12th is based on a support unit 30th or a support body 37 from. The at least one receiving body 21st is by means of the at least one hollow body 12th and / or the support unit 30th held.

List of reference symbols

10

Carrier assembly

11

Component

12th

Hollow body

13th

Web section

14th

Connection section

17th

first group

18th

second group

21

Receiving body

22nd

Base area of the receiving body

23

Outer surface of the web section

24

central part

25th

admission

26th

hole

30th

Support unit

31

Holding body

32

pen

33

Support point

35

Clamping body

37

Support body

38

Flat side

39

Space

40

Vertex of the receiving body

41

Flank of the receiving body

42

Adapter body

43

Foot part

44

free space

48

Deepening of the receiving body

49

Bottom of the recess

50

protruding section

51

Reinforcing fiber strand

α

Rotation angle

A.

Axial direction

D.

Axis of rotation

U

Circumferential direction

QUOTES INCLUDED IN THE DESCRIPTION

This list of the documents listed by the applicant was generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Patent literature cited

• DE 102018101407 A1 [0002]

Claims (19)

Carrier assembly (10), in particular tool carrier assembly, which is set up to arrange at least one component (11) and to drive it in rotation about an axis of rotation (D), with several hollow bodies (12) which are arranged next to one another in an axial direction (A) parallel to the axis of rotation (D) and each enclose the axis of rotation (D), and which have several web sections (13), two directly adjacent web sections (13) in each case are connected to one another to form a curved connecting section (14), with a support unit (30) on which each hollow body (12) is supported at several support points (33) spaced around the axis of rotation (D) in the circumferential direction, and with at least one receiving body (21) which is designed for attaching the at least one component (11), each receiving body (21) on the support unit (30) and / or on a web section ( 13) one of the hollow bodies (12) is held. Carrier assembly according to Claim 1 , wherein each receiving body (21) is attached directly to one of the hollow bodies (12). Carrier assembly according to Claim 2 , wherein each receiving body (21) is additionally supported on the support unit (30). Carrier assembly according to Claim 1 , wherein each receiving body (21) is supported on a coaxially to or along the axis of rotation (D) support body (21) of the support unit (30) radially to the axis of rotation (D) and is held on the support body (21) by means of the hollow body (12) . Support assembly according to one of the preceding claims, wherein the support unit (30) has a holding body (31) arranged in the axial direction (A) next to the hollow bodies (12). Carrier assembly according to Claim 4 wherein the support unit (30) has a plurality of pins (32) extending in the axial direction (A) at a distance from the axis of rotation (D), each of which is connected at one end to the holding body (31). Carrier assembly according to Claim 5 , wherein several or all curved connecting sections (14) of each hollow body (12) are assigned to one of the pins (32) and an inner side of a connecting section (13) rests on one of the pins (32) at each of the support points (33). Carrier assembly according to Claim 5 or 6th , wherein several or all of the web sections (13) of at least one of the hollow bodies (12) are each assigned to one of the pins (32), this pin (32) extending through at least one receiving body (21) from the at least one receiving body (21) . Support assembly according to one of the preceding claims, wherein the support unit (30) has a support body (37) extending coaxially to or along the axis of rotation (D). Carrier assembly according to Claim 9 , wherein the support body (37) has a contour with flat sides (38) arranged regularly distributed in the circumferential direction (U) around the axis of rotation (D), each flat side (38) extending in the axial direction (A) along all hollow bodies (12). Carrier assembly according to Claim 10 , the number of flat sides (38) being greater than the number of web sections (13) of the hollow bodies (12). Carrier assembly according to one of the Claims 9 to 11 wherein the support body (37) rests against the web sections (13) of each hollow body (12) and is at a distance from the connecting sections (14) of each hollow body (12). A carrier assembly according to any one of the preceding claims, wherein each hollow body (12) is integrally formed. Carrier assembly according to one of the preceding claims, wherein each of the hollow bodies (12) consists of a fiber-reinforced composite material. Support assembly according to one of the preceding claims, wherein all hollow bodies (12) have the same number of web sections (13) and curved connecting sections (14). Carrier assembly according to one of the preceding claims, wherein a first group (17) and a second group (18) are present, wherein each group (17, 18) has at least one hollow body (12) and wherein the at least one hollow body (12) of the first Group (17) is offset from the at least one hollow body (12) of the second group (18) in a circumferential direction (U) about the axis of rotation (D) by an angle of rotation (α). Method for producing a carrier assembly (10) according to one of the preceding claims comprising the following steps: - providing the support unit (30), - arranging the at least one receiving body (21) on the support unit (30) and / or on one of the hollow bodies (12) - Arranging the hollow body (12) around the axis of rotation (D) on the support unit (30), such that each Receiving body (21) is held on a web section (13) of one of the hollow bodies (12) and / or on the support unit (30), and - attaching the at least one component (11) to the at least one receiving body (21). Carrier assembly (10), in particular tool carrier assembly, which is set up to arrange at least one component (11) and to drive it in rotation about an axis of rotation (D), with a hollow body (12) which extends helically around the axis of rotation (D) and has several web sections (13), two immediately adjacent web sections (13) being connected to one another to form a curved connecting section (14), with at least one receiving body (21) which is designed for attaching the at least one component (11), and with a support unit (30) extending in the axial direction (A), each receiving body (21) being held on the support unit (30) by the hollow body (12). Method for producing a carrier assembly (10) according to one of the Claims 1 to 16 or 18th comprising the following steps: - providing the support body (37), - arranging the at least one receiving body (21) on the support body (37), - winding at least one fiber strand (51) around the axis of rotation (D) and around each on the support unit (37) ) arranged receiving body (21) such that each receiving body (21) is held on the support body (37), curing of the fiber strand (51) impregnated or soaked with a plastic and attaching the at least one component (11) to the at least one Receiving body (21).

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