DE102017219026A1 - Method for producing a joint housing of a ball joint and device for machining a joint housing of a ball joint and joint housing - Google Patents

Abstract

The invention relates to a method for producing a joint housing (1) of a ball joint, wherein the joint housing (1) with a first, substantially hollow cylindrical, functional portion (5) and a second functional portion (6) is produced, which in a longitudinal direction of the joint housing (1) adjoins the first functional section (5), wherein in the joint housing (1) a spherical shell is used, wherein in the second functional portion (6) at least two in the longitudinal direction of the joint housing (1) extending recesses (14) through each laterally outwardly directed material displacement can be generated.

Description

The invention relates to a method for producing a joint housing of a ball joint, in particular for a handlebar for a suspension, wherein the joint housing is produced with a first, substantially hollow cylindrical functional portion and a second functional portion, which adjoins the first functional portion in a longitudinal direction of the joint housing and has an at least partially tapered course, wherein in the joint housing a spherical shell is used.

Furthermore, the invention relates to a device for machining a joint housing of a ball joint, in particular for a handlebar for a suspension, wherein the joint housing has a first, substantially hollow cylindrical, functional portion and a second functional portion which extends in a longitudinal direction of the joint housing to the first functional portion connects and has an at least partially tapered course, wherein in the joint housing a spherical shell is used.

Finally, the invention has a joint housing of a ball joint for a chassis component, in particular a handlebar and / or a suspension, the subject, wherein the joint housing has a first, substantially hollow cylindrical functional portion and a second functional portion extending in a longitudinal direction of the joint housing to the first functional section connects and has an at least partially tapered course.

Ball joints are used, inter alia, in the field of suspension of motor vehicles. The requirements imposed on such ball joints include in particular high specific load capacity and low bearing clearance both in static and dynamic load case, also low maintenance and maintenance as possible over the life of the motor vehicle or the ball joint, the lowest possible mass and low space requirement. In addition, the production should be cost-effective if possible.

In the joint housing of the ball joint, a spherical shell is arranged, in which a ball of a ball stud of the ball joint is slidably received. It is necessary that the ball shell is anchored backlash-free and in particular secured against rotation relative to the joint housing in the joint housing, since movements of the outer surface of the ball shell relative to the inner surface of the joint housing to abrasion, thus early to undesirable play and to shorten the life of the ball joint would lead.

From the DE 10 2015 211 005 A1 is a joint housing a ball joint, in particular for a handlebar of a suspension, known. The joint housing is produced with a first, substantially hollow-cylindrical functional section and a second functional section having a tapered course. In the joint housing, a spherical shell is used, which is secured by a locking ring which is fixed axially between the spherical shell and provided in the region of a journal opening of the first functional portion inner shoulder of the joint housing. The locking ring has on its contact surface, with which the closure ring is pressed against a correspondingly shaped, collar-shaped portion of the spherical shell, beads which extend around the central longitudinal axis of the joint housing. By pressing the locking ring against the ball shell, the material of the ball shell forms into the beads, whereby a rotation is achieved.

Based on the above-described prior art, it is now the object of the present invention to achieve an effective rotation between ball socket and joint housing while reducing the manufacturing cost.

This object is achieved from the procedural point of view, starting from the preamble of claim 1 in conjunction with its characterizing features. From a device technical point of view, a solution of the problem is based on the preamble of independent claim 6 in conjunction with its characterizing features. The respective subsequent dependent claims give each advantageous embodiments of the invention. A joint housing for a handlebar of a suspension is also the subject of claim 13.

According to the invention, in one method, a joint housing of a ball joint is produced, wherein the joint housing is formed with a first, substantially hollow-cylindrical functional portion and a second functional portion. The second functional section adjoins the first functional section in a longitudinal direction of the joint housing. In the joint housing a spherical shell is used.

The invention now includes the technical teaching that in the second functional section at least two depressions extending in the longitudinal direction of the joint housing through each produced laterally outward material displacement. In this way, furrow-shaped recesses are formed, which are flanked on both sides by material editions, which are produced by the outward material displacement. Preferably, a laterally outwardly directed material displacement is to be understood as meaning a displacement of the material in a circumferential direction and / or rotational direction, which is aligned circumferentially and / or coaxially with respect to a longitudinal axis of the joint housing. In particular, the furrow-shaped depressions extend in and / or parallel to the longitudinal direction and / or a longitudinal axis of the joint housing. Preferably, the laterally outwardly directed material displacements are as steep as possible. The insertion of the ball shell in the joint housing causes material of the ball shell forms in the respective recess or the respective flanking material jacks flanking on the inner peripheral surface of the joint housing form into the material of the spherical shell, whereby a rotation of the ball socket is achieved. Such a grooved anti-rotation is advantageous for joints that are closed by a forming process of the joint housing without closure elements, as is the case for example with tie rod outer joints.

Likewise advantageously, the inventive method is applicable to joint housing, which are formed by a closure element, but the ball socket received by the joint housings has no collar or flange-shaped as anti-rotation. Correspondingly produced joint housing with a grooved anti-rotation device for spherical shells without a collar-shaped section are used, for example, on suspension joints or guide joints. In addition, spherical shells without collar or flange-shaped section are characterized by a simpler production and a higher load-bearing ratio. In addition, the housing design and the interaction of all tolerances are simplified by eliminating the collar or flange-shaped section. The production of spherical shells and joint housings, in particular cold-formed joint housings, becomes simpler and less expensive.

In contrast, in the method according to the DE 10 2015 211 005 A1 a deformation of the collar-shaped portion of the spherical shell by the locking ring instead to achieve a rotation. The manufacture of joint housings is associated with an increased production engineering effort, especially since the fine geometry is more susceptible to wear in a pressing tool.

The spherical shell is preferably made of a thermoplastic material, for example of polyoxymethylene, polyamide, polyether ketone, polyphthalamide or polyetherimide.

For material displacement on the inner peripheral surface of the joint housing, a tool with at least two cutting elements can be used, which comprise a curved course having cutting edges, wherein the tool is introduced axially parallel to the central longitudinal axis of the joint housing. The at least two cutting elements penetrate in the region of the second functional section into the material of the joint housing and generate the two-sided material jettings, which can be transverse to a direction of rotation. In particular, the direction of rotation is circumferential and / or aligned coaxially to a longitudinal axis of the joint housing. In this case, the respective cutting edge can penetrate deeper into its material with increasing diameter reduction of the second functional section. The furrow-shaped depressions as well as the Materialaufwürfe form a large attack surface, whereby an anti-rotation, in particular with respect to a spherical shell, created by the wear behavior of joints and links is improved. The production of the rotation can be effected by a linear movement or a circumferential movement of the cutting elements.

According to the invention, the tool can be centered independently during insertion into the second functional section. Thus, there is no need for additional tools to align the tool with the workpiece before engaging the blades with the inner circumferential surface of the second functional portion to produce the furrow-like depressions by linear or circumferential movement of the blades.

The depressions can be generated distributed by the tool in the circumferential direction equidistant. As a result, a uniform distribution of forces on the rotation is achieved. Particularly preferably, three or more equidistantly distributed depressions are produced. In particular, a plurality of depressions can be realized by repeatedly inserting and / or pressing the tool into the joint housing. Preferably, two recesses form a pair of recesses placed opposite one another in the joint housing. Two, three, four, five or more depressions can be generated equidistantly distributed in the circumferential direction. In particular, the cutting elements are arranged equidistantly in the circumferential direction at a free end of the tool.

For a cost-effective production of the joint housing is provided that the joint housing by means of a cold forming process, in particular cold extrusion, is produced. By integrating the rotation in the second functional portion of the joint housing whose geometry is simplified, so that the joint housing is cheaper to produce. The joint housing is preferably made of steel or a light metal, such as aluminum.

According to the independent claim 6, a device for machining a joint housing of a ball joint is proposed, wherein the joint housing has a first, substantially hollow cylindrical functional portion and a second functional portion, which adjoins the first functional portion in a longitudinal direction of the joint housing and at least partially tapered Has history, wherein in the joint housing a spherical shell is used. For a reliable production of an anti-rotation between the joint housing and the spherical shell is provided that the device comprises a tool, are generated by which in the second functional portion at least two extending in the longitudinal direction of the joint housing recesses by each side outwardly directed material displacement. In particular, a displacement of the material in a direction transverse to and / or at right angles to the longitudinal direction of the joint housing, preferably in a direction coaxial with a longitudinal axis of the joint housing, is to be understood as meaning a laterally outward material displacement. The tool is preferably designed as a plunger having a matched to the contour or inner contour of the first functional section cross-section.

For this purpose, the tool may have at least two cutting elements which are provided with a curved course having cutting edges. The at least two cutting elements produce during the insertion of the tool in the joint housing furrow-shaped depressions in the second functional portion, wherein the cutting edges of the at least two cutting elements displace the material during the production of furrow-shaped depressions laterally outward on both sides. The resulting material build-up of material formed in each case transverse to the direction of rotation, whereby a larger attack surface for the forces to be absorbed is generated.

By equidistant arrangement of the at least two cutting elements to each other on the tool, a reliable centering during insertion of a particular floating or oscillating tool mounted in the joint housing can be achieved. Alternatively or additionally, the joint housing can be mounted floating. In particular, the tool is guided on insertion into the joint housing, preferably by means of the cutting elements, on and / or along an inner side of the first hollow cylindrical functional section.

In a preferred embodiment, the tool is mounted floating or pendulum in the radial direction. The curved course of the cutting leads during insertion into the joint housing to the second functional portion can take over a guiding and centering function by which the floating or oscillating tool can be automatically centered, so that the blades with the inner peripheral surface of the second functional portion uniformly engaged can occur. When the second functional section is reached, the contact of at least one of the curved cutting edges causes a force directed perpendicular to the contour of the second functional section to act on the corresponding cutting element. A force resulting from the vertically directed force acting on the tool and the force directed perpendicularly to the contour of the second functional section causes a displacement of the tool in the direction of the resulting force, so that a cutting element lying opposite due to the equidistant arrangement likewise engages with the second functional section is brought. In this way, a substantially uniform depth profile of the furrow-shaped depressions generated by the cutting elements can be achieved in the second functional section.

According to an alternative embodiment, the cutting elements arranged in the tool can be resiliently mounted in the radial direction. For this purpose, the cutting elements can be biased by a spring force to allow when exceeding this spring force with increasing penetration depth of the tool a compensating movement of the cutting elements in the radial direction.

It is advantageous if the cutting elements are designed as cutting rollers. For this purpose, the cutting rollers can be rotatably mounted in the head region of the tool about respective tangentially extending axes. The rotatable mounting of the cutting rollers has the advantage that the cutting rollers can roll in the circumferential direction when generating the substantially furrow-shaped depressions. Due to the fact that different sections of the cutting rollers come into engagement because of the rolling, a substantially uniform wear over the entire circumference of the cutting rollers is achieved. In this way, the life of the tool can be significantly increased. The two-sided Materialaufwürfe generated with the generation of the substantially furrow-shaped recess are transverse to the direction of rotation. To the burden of the cutting rollers receiving axes at To reduce increasing depth of penetration of the tool in the joint housing, these can be spring-loaded in the axial direction of the tool. When inserting the tool into the joint housing, the cutting elements preferably serve as guide elements which roll or slide along the inside of the first functional section. In this case, the cutting elements rest against the first functional section in such a way that a cutting in the region of the first functional section is avoided.

In an alternative embodiment, the cutting elements may have blade-shaped cutting edges. The skid-shaped blades are fixedly arranged on the tool and extend in the axial direction, wherein the tool-facing end is curved upward. Even with the blade-shaped cutting edges, the advantageous alignment of the material ejections can be achieved when impressing the essentially furrow-shaped depression in the second functional section.

An inventively designed joint housing a ball joint for a chassis component, in particular a handlebar or a tie rod, may be part of a suspension of a motor vehicle. The ball joint may be provided as a ball joint or joint. Particularly preferably, however, a wheel suspension comprises a plurality of chassis components and / or handlebars with joint housing designed according to the invention.

Preferably, the cutting, cutting elements and / or cutting rollers, in particular exclusively, cause a material displacement. Preferably, the material displacement is directed only laterally outward. In this way, the material can be displaced in a circumferential direction and / or rotational direction, which is aligned circumferentially and / or coaxially to a longitudinal axis of the joint housing. In particular, the cutting edges, cutting elements and / or cutting rollers can be understood or designated as displacement elements and / or displacement rollers.

• 1a bis 1c eine schematisierte Darstellung des Ablaufs eines Verfahrens zur Herstellung von Vertiefungen in einem im Längsschnitt gezeigten Gelenkgehäuses;
• 2a eine vergrößerte Ansicht einer Schneidrolle;
• 2b einen schematischen Profilverlauf einer Vertiefung auf der Oberfläche eines zweiten Funktionsabschnittes in Längsrichtung des Gelenkgehäuses;
• 2c einen schematischen Profilverlauf der Vertiefung gemäß 2a auf der Oberfläche des zweiten Funktionsabschnittes in Querrichtung des Gelenkgehäuses;
• 3 eine perspektivische Ansicht eines in das Gelenkgehäuse eingeführten Werkzeugs;
• 4 eine vergrößerte Detailansicht X gemäß 3;
• 5a auf das Werkzeug gemäß 3 einwirkende Kräfte, die zu einer Selbstzentrierung des Werkzeugs führen; und
• 5b auf das Werkzeug gemäß 3 einwirkende Kräfte nach einer Selbstzentrierung.

An advantageous embodiment of the invention, which will be explained below, is shown in the drawings. It shows:

• 1a to 1c a schematic representation of the sequence of a method for the production of depressions in a joint housing shown in longitudinal section;
• 2a an enlarged view of a cutting roller;
• 2 B a schematic profile profile of a recess on the surface of a second functional portion in the longitudinal direction of the joint housing;
• 2c a schematic profile profile of the recess according to 2a on the surface of the second functional section in the transverse direction of the joint housing;
• 3 a perspective view of an inserted into the joint housing tool;
• 4 an enlarged detail view X according to 3 ;
• 5a according to the tool 3 acting forces that lead to a self-centering of the tool; and
• 5b according to the tool 3 acting forces after a self-centering.

In the 1a to 1c are views of a schematic representation of the sequence of a method for producing a joint housing shown in longitudinal section 1 a ball joint shown. Here is the joint housing 1 already substantially finished and it will be in accordance with the 1a to 1c Recesses for providing an anti-rotation in the joint housing 1 brought in. Ball joints comes the task to chassis components with each other or link to connect with a suspension of a motor vehicle to transmit wheel forces from the wheel to the handlebars. Each wheel-guiding ball joint has a joint housing made of plastic or metal, in particular steel or aluminum 1 on, as well as a ball pin received by this, which transmit the wheel forces. The joint housing 1 is produced in this embodiment by cold working, preferably by cold extrusion. The inner contours of the joint housing 1 can, in particular for handlebars, by machine, for example by drilling or milling, are processed. For maintenance-free design of the ball joint of the ball head of the ball stud in a ball shell made of a plastic, in particular a thermoplastic material, mounted, which in the joint housing 1 is pressed. In particular, guide joints are loaded radially and exposed to rotational movements at large angles, so that the ball socket must be secured against rotation to wear through a relative movement between the inner surface of the joint housing 1 and to prevent the outer surface of the spherical shell. To prevent the occurrence of such relative movements is a rotation in the joint housing 1 intended.

The joint housing 1 has a rotationally symmetrical running interior 2 on. A central longitudinal axis 3 forms the axis of rotation of a cylindrical inner peripheral surface 4 into a first functional section 5 and a second functional section 6 is divided. The first functional section 5 is essentially hollow cylindrical educated. The second functional section 6 closes in a longitudinal direction of the joint housing 1 to the first functional section 5 and has an at least partially tapered respectively funnel-shaped or spherical segment-shaped course. In the second functional section 6 are several in the longitudinal direction of the joint housing 1 extending depressions 14 as in the 2a and 2 B shown in more detail, generated by each laterally outwardly directed material displacement. The generated pits 14 as well as the respective depression 14 both sides flanking Materialaufwürfe 15 serve to prevent rotation in the joint housing 1 pressed ball socket. By pressing in the spherical shell, the material of the spherical shell forms in the respective recess 14 or form the respective bilaterally flanking Materialaufwürfe 15 on the second functional portion of the inner peripheral surface 4 of the joint housing 1 in the material of the ball shell, whereby the rotation of the ball socket is realized.

Further shows 1a a tool 7 which is used to produce the recesses by the respective laterally outwardly directed material displacement in the joint housing 1 is provided. The tool 7 includes a cylindrical section 8th , the device side is floating or oscillating, so that the tool 7 can perform a compensating movement in the radial direction. On the workpiece to be machined, ie the joint housing 1 , facing the head of the tool 7 are distributed in the circumferential direction as cutting rollers 9 arranged cutting elements arranged. The cutting rollers 9 have on their outer circumference cutting 10 on. The cutting rollers 9 are on axes 11 arranged, which rotatably in the cylindrical portion 8th of the tool 7 are arranged, preferably by sliding bearings. Alternatively, the axes can 11 not be rotatably mounted. As a result, even larger forces can be transmitted. The axes 11 extend tangentially to the circular section having a cylindrical section 8th , The arrangement of the cutting rollers 9 or the axes 11 is in the circumferential direction of the cylindrical portion 8th Equidistant executed. In the illustrated embodiment, a total of four cutting rollers 9 provided in sections in the radial direction over the cylindrical portion 8th protrude. To the wells 14 to produce against rotation, at least two cutting elements are to be provided, which are arranged offset by 180 °. The arrangement of five or more cutting elements is also conceivable, especially if the cutting elements skid-shaped and fixed in the tool 7 are arranged.

The arrangement of the cutting rollers 9 takes place in recesses 12 extending in the axial and radial directions of the section 8th at the head end of the tool 7 extend. The recesses 12 are by pairs arranged webs 13 limited, the inclusion of the axes 11 serve.

In 1b is shown as the tool 7 in the joint housing 1 is introduced. Due to the floating or oscillating mounting of the tool 7 becomes the tool 7 self-acting to the central longitudinal axis 3 of the joint housing 1 guided when the cutting rollers 9 with the first functional section 5 come in contact. In the course of lowering the tool 7 leads the first functional section 5 this. The first functional section 5 thus has a leadership function. The diameter of an outer boundary circle extending in the circumferential direction of the tool 7 adjusts and on which the cutting rollers 9 their maximum radial extent over the section 8th have, is dimensioned such that the cutting rollers 9 on the first functional section 5 can roll without appreciably manipulating its surface.

In 1c is a positioning of the tool 7 shown in which the cutting 10 the cutting rollers 9 already in sections into the surface of the second functional section 6 have penetrated. The second functional section 6 has a centering function, which is described below on the basis of 5a and 5b is explained in more detail. Due to the curved shape of the cutting rollers 9 running cutting elements is when penetrating into the surface of the second functional section 6 causes a lateral displacement of the material. It comes to the Materialaufwürfen 15 on both sides of the forming furrow-shaped depressions 14 in the longitudinal direction of the joint housing 1 run. A pushing of material in the direction of movement of the cutting edge 10 What happens at the end of the insertion movement of the tool 7 would lead to an accumulation of material at the lower end of the depression, almost does not take place. Following this process, the ball socket is in the joint housing 1 used, wherein material forms on the outer surface of the spherical shell in the respective recess, while the both sides of the respective recess 14 generated, parallel to the depression 14 running material jams 15 in turn form into the spherical shell. The production of the anti-rotation is effected by the circumferential movement of the cutting, which has the advantage that a uniform wear on the tool 7 occurs as the cutting edges 10 the cutting rollers are largely uniformly engaged over the entire circumference.

In 2a is a schematic enlarged view of a cutting roller 9 and one by the cutting roller 9 in the surface of the second functional section 6 created depression 14 shown in a partial sectional view.

In 2 B is a schematic profile of one of the furrow-shaped depressions 14 on the surface of the second functional section 6 in the longitudinal direction of the joint housing 1 shown. The course gives the contour of the depression 14 at its lowest point again, which with the maximum penetration depth of the cutting edge 10 the cutting roller 9 corresponds. An arrow 16 illustrates the direction of movement of the tool 7 ,

2c shows a representation of a schematic profile profile of the depression 14 according to 2 B on the surface of the second functional section 6 in the transverse direction of the Gelenkgehäuses1. The rolling movement of the cutting roller 9 leads to either side of the cutting edge 10 laterally outward material displacement and the formation of the material jams 15 , The displacement direction with the reference numeral 17 is marked.

In 3 is a perspective view of the in the joint housing 1 introduced tool 7 shown.

4 shows an enlarged detail view X according to 3 , In particular, from the representation of the detailed view it can be seen that the cutting roller 9 first on the first functional section 5 is unrolled to center before the on the tool 7 applied compressive force and the tapered shape of the second functional section 6 cause the respective cutting edge 10 with increasing diameter reduction of the second functional section 6 penetrates deeper into its material.

5a points to the tool 7 according to 3 acting forces leading to a self-centering of the tool 7 to lead. Like in the 5a implied, is the tool 7 opposite the joint housing 1 not exactly positioned, ie between the longitudinal axis of the tool 7 and the central longitudinal axis 3 If an offset occurs in the radial direction. Due to the deviating orientation comes only one of two oppositely arranged cutting rollers 9 with the surface of the second functional section 6 in contact, in the illustrated embodiment, only the right cutting role 9 , From the tool 7 becomes one in the direction of movement 16 of the tool 7 directed tool force F _tool on with the second functional section 6 in contact standing cutting role 9 applied. A result of the touch of a cutting roller 9 with the surface of the second functional section 6 resulting counterforce F _{cutting roller} acts perpendicular to the surface of the second functional section 6 at the point of contact of the cutting roller 9 , One from the F _tool and the drag F _{cutting roller} resulting power F _res acts on the tool 7 and causes a displacement of the floating or oscillating stored tool 7 in the direction of the resulting force F _res , so that the oppositely disposed cutting roller 9 with the surface of the second functional section 6 engages.

5b points to the tool 7 according to 3 acting forces after a self-centering. Both oppositely disposed cutting rollers 9 stand with the surface of the second functional section 6 in contact, so that the tool 7 radially aligned so that each radially acting components of the opposing force F _{cutting roller} the cutting rollers 9 balance and cancel. A respective axial portion of the counterforce F _{cutting roller} the cutting rollers 9 , the direction of movement 16 of the tool 7 must be opposed by the tool force F _tool of the tool 7 be applied.

LIST OF REFERENCE NUMBERS

1

joint housing

2

inner space

3

central longitudinal axis

4

Inner circumferential surface

5

First functional section

6

Second functional section

7

Tool

8th

Cylindrical section

9

cutting roller

10

cutting edge

11

axis

12

recess

13

web

14

deepening

15

Material throw

16

movement direction

17

displacement direction

F _tool

tool force

F _{cutting roller}

Counterforce of the cutting roller

F _res

Resulting power

F _Radial

Radial force component of the opposing force

F _Axial

Axial force component of the reaction force

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been 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.

Cited patent literature

• DE 102015211005 A1 [0006, 0012]

Claims (13)

A method for producing a joint housing (1) of a ball joint, wherein the joint housing (1) with a first, substantially hollow cylindrical functional portion (5) and a second functional portion (6) is produced, which in a longitudinal direction of the joint housing (1) to the first functional portion (5) connects and has an at least partially tapering course, wherein in the joint housing (1) a ball shell is used, characterized in that in the second functional portion (6) at least two in the longitudinal direction of the joint housing (1) extending recesses (14) are produced by laterally outwardly directed material displacement. Method according to Claim 1 , characterized in that for material displacement a tool (7) with at least two curved course having cutting edges (10) is used, which along a central longitudinal axis (3) of the joint housing (1) in the joint housing (1) is introduced. Method according to Claim 2 , characterized in that the tool (7) during insertion into the second functional portion (5) is independently centered by this. Method according to one of Claims 1 to 3 , characterized in that the recesses (14) are generated distributed in the circumferential direction equidistant. Method according to one of Claims 1 to 4 , characterized in that the joint housing (1) by a cold forming process, in particular cold extrusion is prepared. Device for machining a joint housing (1) of a ball joint, wherein the joint housing has a first, substantially hollow-cylindrical functional section (5) and a second functional section (6) which adjoins the first functional section (5) in a longitudinal direction of the joint housing (1) connected and at least partially tapered course, wherein in the joint housing (1) is a ball shell is used, characterized in that the device comprises a tool (7) through which in the second functional portion (6) at least two in the longitudinal direction of the Joint housing (1) extending recesses (14) are each produced by laterally outwardly directed material displacement. Device after Claim 6 , characterized in that the tool (1) has at least two cutting elements (9) which are provided with a curved course having cutting edges (10). Device after Claim 6 or 7 , characterized in that the tool (7) is mounted floating or pendulum in the radial direction. Device after Claim 6 or 7 , characterized in that the tool (7) is resiliently mounted in the radial direction. Device according to one of Claims 7 to 9 , characterized in that the cutting elements are designed as cutting rollers (9). Device according to one of Claims 7 to 9 , characterized in that the cutting elements have blade-shaped cutting edges. Device according to one of Claims 6 to 11 , characterized in that the at least two cutting elements (9) are arranged equidistant from each other on the tool (7). Joint housing (1) of a ball joint for a chassis component, in particular a handlebar and / or a suspension, having a ball shell disposed therein, wherein the joint housing (1) has a first, substantially hollow cylindrical functional portion (5) and a second functional portion (6), which adjoins the first functional section (5) in a longitudinal direction of the joint housing (1) and has a profile which tapers at least in sections, characterized in that the second functional section (6) has an anti-twist device provided for the ball socket, which is at least two formed in the longitudinal direction of the joint housing (1) extending through each laterally outwardly directed material displacement depressions (14) is formed.

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