DE102021102757A1 - CENTRIFUGE BASKET ASSEMBLY AND USE OF CENTERING TENSION SYSTEMS FOR REVERSIBLE RELEASABLE CONNECTION OF A CENTRIFUGE BASKET ASSEMBLY - Google Patents

Abstract

The invention relates to a centrifuge basket arrangement (1; 41) for a plant for treating mass-produced parts, comprising: a base body (3) which can be rotated about an axis of rotation (D), at least one basket (4) arranged on the base body (3) for receiving of the mass parts, and at least three clamping bolts (6) which are arranged on the base body (3) and designed in such a way that the clamping bolts (6) can be clamped in clamping modules which are arranged on a basket carrier of the system. Furthermore, the invention relates to the use of centering clamping systems (33) for fastening a centrifuge basket arrangement (1; 41) according to one of Claims 1 to 27 on a basket carrier (7) of a plant (2) for treating mass-produced parts, the centering clamping system on the base body ( 3) has clamping bolts (6) arranged on the centrifuge basket arrangement (1; 41) and clamping modules (8) arranged on the basket carrier (7) of the system (2) for clamping the clamping bolts (6) in the clamping modules (8).

Description

The invention relates to a centrifuge basket arrangement for a system for treating mass-produced parts, the centrifuge basket arrangement having a base body which can be rotated about an axis of rotation, and at least one basket arranged on the base body. Furthermore, the invention relates to the use of centering clamping systems.

Such a centrifuge basket arrangement can be connected to a basket carrier of a plant for the treatment of, in particular, bulky mass-produced parts, such as screws, stamped parts or the like. After the bulk parts have been poured into the basket, the centrifuge basket assembly can be immersed, for example, in an immersion bath filled with a liquid coating agent. The centrifuge basket arrangement can then be spun around the axis of rotation outside of the coating medium in order to sling excess coating medium off the mass parts. Such systems can also be used, for example, for vibratory finishing of mass-produced parts.

the DE 10 2018 111 331 A1 discloses a centrifuge basket assembly which is reversibly releasably connected to a basket support of an immersion spinner. The centrifuge basket arrangement is arranged eccentrically to a central axis of rotation of the basket carrier and can be rotated about a planetary axis of rotation. The centrifuge basket arrangement comprises a plurality of baskets which are arranged on a base body of the centrifuge basket arrangement, distributed evenly around the planetary axis of rotation. To treat the mass parts, they are poured into the spatially separate baskets and the base body is connected to the basket carrier of the immersion centrifugal system. The baskets of the centrifuge basket arrangement are first immersed in a coating agent and then rotated about the central axis of rotation and/or the planetary axis of rotation in order to centrifuge or circulate the mass parts.

From the U.S. 2,416,475A a system for cleaning watch movements is known, which has a basket carrier arranged to be rotatable about an axis of rotation. A basket is reversibly detachably connected to the basket carrier by means of a bayonet catch. For this purpose, the basket has two bayonet bolts that can be inserted into two keyhole-shaped receiving openings in the basket carrier. For locking, the basket must be rotated around the axis of rotation relative to the basket carrier after the bayonet bolts have been inserted into the receiving openings. It is considered disadvantageous that the bayonet lock only ensures a stable and resilient connection between the basket carrier and the basket in one of the two directions of rotation and that the connection of the basket to the basket carrier also appears complex and prone to failure.

One object of the invention is to provide a centrifuge basket assembly which can be reversibly and detachably fastened to the basket support of the system in a simple and secure manner.

The object is achieved by a centrifuge basket arrangement of the type mentioned at the outset, which has at least three clamping bolts which are arranged on the base body and are designed in such a way that the clamping bolts can be clamped in clamping modules which are arranged on a basket carrier.

It is advantageous that the centrifuge basket arrangement can be reversibly and detachably connected to the basket carrier, which is structurally separate from the centrifuge basket, by means of the clamping bolts that can be clamped in the clamping modules. The clamping bolts can also be referred to as connecting bolts. The clamping bolts are passive clamping partners of a centering clamping system, which includes the clamping modules as active clamping partners. The coupling or the insertion of the clamping bolts into the clamping modules takes place in the axial direction. A relative rotational movement between the centrifuge basket arrangement and the basket carrier is therefore not provided. The clamping bolts can be clamped precisely in the clamping modules, so that the centrifuge basket arrangement can be fastened to the basket carrier at least largely free of play in terms of translation and rotation. If the centrifuge basket arrangement is rotated about the axis of rotation during operation of the system, the clamping bolts thus transfer the centrifugal forces that arise to the clamping modules. In a preferred manner, the centrifuge basket arrangement can only be connected to the basket support via the clamping bolts, as a result of which the centrifuge basket arrangement can be reversibly and detachably connected to the basket support in a simple and in particular automated or automatic manner. Only after the clamping by the clamping modules has been released can the clamping bolts be displaced relative to the clamping modules, so that the centrifuge basket arrangement can be separated from the clamping modules or the basket carrier. The centrifuge basket arrangement and the basket carrier are thus assemblies that can be moved relative to one another and are connected to one another only in the clamped state, in which the clamping bolts are clamped in the clamping modules.

Furthermore, it is advantageous that the clamping bolts are the passive clamping partners, or those arranged rigidly and immovably on the base body, and the clamping modules arranged on the basket carrier are the active clamping partners, or those provided with movable components. This makes the centrifuge basket assembly more robust and durable. In addition, the centrifuge basket arrangement is easier to clean since it can be sandblasted separately from the clamping modules or the basket holder without fear of damaging the clamping modules. As a result, the centrifuge basket arrangement can be securely and reversibly releasably connected to the clamping modules arranged on the basket carrier in a simple and quick manner, and the centrifuge basket arrangement is clamped backlash-free in the clamping modules by means of the clamping bolts in the connected state, regardless of the direction of rotation about the axis of rotation.

Expediently, the base body and in particular the centrifuge basket arrangement has a weight distribution that is symmetrical about the axis of rotation, as a result of which imbalances are avoided when the centrifuge basket arrangement rotates about the axis of rotation.

Furthermore, it can be provided that the clamping bolts each define a bolt axis that can be aligned parallel to the axis of rotation of the centrifuge basket arrangement. As a result, the centrifuge basket arrangement can be connected to the system more easily. In this way, the clamping bolts can be inserted into the clamping modules by axial displacement of the clamping bolts relative to the clamping modules. For this purpose, the centrifuge basket arrangement can be moved up to the basket carrier from below or lowered again, for example by means of a lifting device of the system. In addition or as an alternative, the clamping modules of the system, which are fastened in particular to the basket carrier, can be height-adjustable. The clamping bolts can preferably protrude from a front connecting surface of the base body. This makes it easier to insert the clamping bolts into the clamping modules.

Furthermore, the clamping bolts can each have a circumferential groove or a groove closed in the circumferential direction around the respective bolt axis for clamping the clamping bolts in the clamping modules. In this way, the clamping bolts can be clamped more easily and securely in the clamping modules. In particular, the grooves are arranged at a distance from the connecting surface. The distance between the bottom edge of the groove and the connection surface can be at least 8 millimeters and/or a maximum of 20 millimeters. This distance is preferably at least approximately 10 millimeters. The groove width of the respective groove can be between 8 millimeters and 25 millimeters. The groove width is preferably between 10 millimeters and 20 millimeters and preferably at least approximately 14 millimeters.

For quick alignment and centering of the clamping bolts when inserting them into the clamping modules, the clamping bolts can each have a support section with a peripheral support surface between the grooves and the connecting surface, the support surface having the shape of a lateral surface of a truncated cone. The support surfaces can widen towards the connection surface. Furthermore, the respective groove can have a side surface delimiting the groove on a side facing the support section, the side surface having the shape of a lateral surface of a truncated cone. This further increases the stability of the connection between the clamping bolts and the clamping modules in the connected state, especially in the axial direction. Expediently, an opening angle of the frustoconical side surface is larger than an opening angle of the frustoconical support surface. In particular, the frustoconical side surface is directly adjacent to the frustoconical support surface. When the clamping bolts and clamping modules are moved towards each other, a secure mutual centering can be achieved.

Furthermore, it can be provided that an outside diameter of the support section of the respective clamping bolt is larger than an outside diameter of a head section of the respective clamping bolt, the groove of the respective clamping bolt being arranged between the support section and the head section. This simplifies the insertion of the clamping bolts into the clamping modules. In order to further increase the stability of the connection between the clamping bolts and the clamping modules, especially in the axial direction, the clamping bolts can each have a free end that is expanded in the manner of a mushroom head, the undercut of which can be followed by the groove. A circumferential insertion radius can be formed on the free end of the respective clamping bolt, which enables quick and safe insertion into the clamping module. The free end of the respective clamping bolt can protrude between 20 millimeters and 50 millimeters from the connection surface. In particular, the distance from the free end of the respective clamping bolt to the connecting surface is at least approximately 30 millimeters to 45 millimeters and preferably at least approximately 36 millimeters.

The base body can have a through hole for each clamping bolt, into which the respective clamping bolt is inserted. The clamping bolts can be firmly connected to the base body, for example by material bonding. In order to be able to flexibly adapt the arrangement of the centrifuge basket to the requirements of the system, the clamping bolts can be detachably connected to the base body. In particular, the clamping bolts can be screwed to the base body.

To ensure a secure and stable connection of the centrifuge basket arrangement with the clamping modules or the basket carrier in the clamped To allow state, the clamping bolts can be arranged evenly distributed in the circumferential direction about the axis of rotation. Particularly good results were achieved with exactly three of the clamping bolts, which can be offset from each other by 120 degrees in the circumferential direction. In principle, however, the centrifuge basket arrangement can also have more than three clamping bolts in order to always be able to hold them securely on the clamping modules or the basket carrier when rotating about the axis of rotation. This can be advantageous above all when the centrifugal forces to be expected make an even more stable connection between the centrifuge basket arrangement and the basket carrier necessary. Furthermore, the clamping bolts can each be arranged at a distance from the axis of rotation, with the distance being between 250 millimeters and 350 millimeters. For example, the distance between the clamping bolts and the axis of rotation is 300 millimeters, with deviations of +/- 10 percent being possible. In particular, the clamping bolts are arranged at equal distances from the axis of rotation.

For easier filling and unloading of the centrifuge basket arrangement, the base body has a filling and removal opening for each basket. Thus, the at least one basket is open at the top, making it easier to fill and empty. The at least one basket is preferably formed concentrically around the respective filling and removal opening. The at least one basket can protrude from an underside of the base body facing away from the clamping bolts. This makes the centering basket arrangement easier to handle. The at least one basket can be welded to the base body, for example. The at least one basket can at least essentially have a cylindrical outer contour.

Furthermore, the at least one basket can be open on a side facing the base body and on the bottom side, i.e. on a side facing away from the base body, by a liquid-permeable bottom wall and circumferentially, i.e. in the circumferential direction around a respective basket axis running parallel to the axis of rotation, by a liquid-permeable side wall be limited. The walls of the basket can be perforated or provided with holes. As a result, the basket can be immersed in a dip tank, so that the liquid taken up in the dip tank can penetrate through the bottom wall and the side wall into the basket and wet the bulk parts that can be picked up there. Furthermore, excess coating liquid can drip off wetted mass parts or be thrown off during rotation. The walls of the basket thus delimit a chamber that can be filled with mass-produced parts.

According to one embodiment, exactly three of the baskets for receiving the mass parts can be arranged on the base body. As a result, the restoring moments generated by rotation of the centrifuge basket arrangement can be reduced. In particular, the three baskets can be offset from one another by 120 degrees in the circumferential direction around the axis of rotation on the base body. As a result, the centrifuge basket arrangement has a weight distribution that is symmetrical to the axis of rotation, as a result of which the system as a whole runs more smoothly and lasts longer during operation. Furthermore, this ensures a continuous change in position, or rather a tumbling of the mass parts when rotating the centrifuge basket arrangement in the individual baskets. In principle, however, the centrifuge basket arrangement can also have exactly one basket or two, four, five, six, seven, eight or nine of the baskets. However, an odd number of baskets can be advantageous if the overall volume of the centrifuge basket arrangement is to be maximized. In the configuration with exactly one basket, this can be arranged concentrically to the axis of rotation on the base body. In the configuration with several of the baskets, these can be arranged on the base body in a circumferentially distributed manner around the axis of rotation.

The baskets can be spaced from each other. In this way, when the centrifuge basket arrangement rotates, excess liquid can also be thrown outwards unhindered from the mass parts via the side walls. In particular, a distance of 2 millimeters to 50 millimeters can be provided between the side walls of the baskets. The respective distance is preferably about 2 to 20 millimeters.

Alternatively, the baskets arranged adjacent to one another can touch each other along the side walls in order to support the baskets against one another. In this case, there can be a line contact between the adjacent baskets, which extends parallel to the axis of rotation.

In order to increase the stability of the centrifuge basket arrangement, two of the baskets, which are in particular arranged adjacent to one another, can be connected to one another by means of cross braces. In this way, the baskets can support each other. The struts are preferably perpendicular to the axis of rotation between the baskets. In particular, the struts each connect the side walls of two of the baskets arranged adjacent to one another. The struts are expediently arranged close to or directly at the bottom end of the baskets.

Furthermore, the baskets can have the same dimensions. This causes the centrifuge basket arrangement easier to manufacture and handle. In addition, it can be ensured in a simple manner that the mass parts can be filled into the baskets in an evenly distributed manner, as a result of which imbalances in the operation of the system are avoided. In particular, the baskets each have an outside diameter of 300 millimeters to 350 millimeters. Furthermore, the baskets can each have a height of 300 millimeters to 380 millimeters. Preferably, the baskets each have a volume or a receiving or chamber volume of 20 liters to 35 liters. In particular, the volume of the respective basket can be at least around 26 liters, with deviations of +/-10 percent being possible.

If the centrifuge basket assembly has only the one basket, it can have an outside diameter of 450 millimeters to 650 millimeters. The outer diameter of the basket is preferably at least approximately 520 millimeters, with deviations of +/- 10 percent being possible. Furthermore, the basket can each have a height of 300 millimeters to 420 millimeters. The height of the basket is preferably at least approximately 360 millimeters, with deviations of +/- 10 percent being possible. The basket preferably has a volume, or an accommodation or chamber volume, of 20 liters to 35 liters. In particular, the volume of the basket can be at least around 30 liters, with deviations of +/- 10 percent being possible.

The base body can be designed as a connecting flange or be a connecting flange. Correspondingly, the base body can protrude perpendicularly to the axis of rotation beyond the outer diameter of the at least one basket.

This provides a larger connection surface that offers sufficient space for arranging the clamping bolts. In addition, the stability of the centrifuge basket arrangement and its handling is improved overall. The connecting flange can be arranged at the end on the at least one cage and can protrude radially outwards in relation to the respective cage axis.

To further improve the handling of the centrifuge basket arrangement, the base body can have two diametrically opposite grip sections for gripping the centrifuge basket arrangement with a lifting device. Furthermore, the handle sections can each have an angular cross-sectional contour. In particular, the grip sections each have a tab that is trapezoidal in plan view, ie along the axis of rotation, and which can protrude radially to the axis of rotation. In this way, the centrifuge basket arrangement can be gripped and raised or lowered, for example, by two forks arranged parallel to one another. The forks can be arranged, for example, on an industrial truck or on a stationary lifting device of the system.

Furthermore, the base body can be made of metal, in particular steel, for example structural steel. In particular, the base body can have a thickness of 10 millimeters to 20 millimeters. The thickness of the connecting flange is preferably at least approximately 12 millimeters, with deviations of +/-10 percent being possible. The base body can have a basic shape, at least in the central part, in a plan view, in which the outer edges follow a circular path. Between the two diametrically opposed handle sections and the central part, the outer edges can be rectilinear and can converge towards the handle sections. In a top view, the middle part can make up at least approximately one third of the base body, the two other thirds can be distributed over the two handle sections. As a result, the base body can have at least approximately an oval or lens-shaped basic shape. The handle sections can adjoin the middle part on the two diametrically opposite sides quasi-radially from the outside. The handle sections can protrude radially to the axis of rotation beyond the circular area of an imaginary circle on which the outer edges of the central part can move. The tabs can each have a radial extension of about 10 millimeters to 100 millimeters. Preferably, the tabs protrude about 20 millimeters to 40 millimeters, and more preferably at least about 30 millimeters. Accordingly, a length of the base body between the two brackets can be approximately 510 millimeters to 1100 millimeters. Particularly good results, especially in the three-basket design, have been obtained with a central portion diameter of at least about 830 millimeters and a lug-to-lug length of at least about 860 millimeters, with deviations of +/- 10 percent possible are. The tabs allow the centrifuge basket assembly to be better automatically aligned and better clamped during transport, filling, and unloading.

A further solution to the above-mentioned problem consists in the use of centering clamping systems for fastening the above-described centrifuge basket arrangement on the basket carrier of the plant for treating mass-produced parts, the centering clamping system using the clamping bolts arranged on the base body of the centrifuge basket arrangement and the clamping modules arranged on the basket carrier of the plant for clamping the clamping bolts in has the clamping modules. Through the inventive In accordance with the use, the same advantages result as have been described in connection with the centrifuge basket arrangement according to the invention, so that reference is made to the above description here for the sake of brevity. It goes without saying that all the configurations of the centrifuge basket arrangement mentioned can be transferred to use and vice versa. Overall, the use according to the invention enables the centrifuge basket arrangement to be connected to the basket carrier in a simple, secure and reversibly detachable manner.

It is advantageous that by means of the centering clamping systems, the centrifuge basket arrangement equipped with the clamping bolts can be held axially and radially in relation to the axis of rotation on the basket carrier equipped with the clamping modules. The clamping modules can clamp the clamping bolts precisely, so that the centrifuge basket arrangement can be fastened to the basket carrier of the system at least largely free of play in terms of translation and rotation. The number of clamping bolts on the centrifuge basket arrangement preferably corresponds to the number of clamping modules on the basket carrier. In principle, however, it is also conceivable and possible for fewer clamping bolts to be provided than clamping modules, as long as the centrifuge basket arrangement has at least three of the clamping bolts.

The clamping modules can be pneumatically driven centering clamps. The clamping modules can each have a base body with a central bolt receptacle into which the clamping bolts can be inserted for connection to the clamping modules. The base bodies can in particular be releasably connected to the basket carrier, for example screwed. Like the clamping modules, the clamping bolts can be distributed around the axis of rotation in the circumferential direction and thus arranged in alignment with one another.

In the connected state, the clamping bolts inserted into the bolt receptacles are held in place axially and radially by means of the locking mechanisms of the clamping modules. In particular, the locking mechanisms are arranged on the base bodies of the clamping modules. As a result, the clamping bolts can be easily clamped in the clamping modules. In principle, however, the locking mechanisms can also be separate from the base bodies, in that the inserted clamping bolts are secured, for example, by means of locking bolts held at a distance from the base bodies. Screws, brackets or the like are also possible to prevent an axial relative movement between the connecting bolts inserted into the bolt receptacles and the base bodies.

The locking mechanisms can preferably be actuated pneumatically. Since compressed air is fire and explosion-proof, the system can also be used to treat mass-produced parts in solvent-based coating agents. In addition, pneumatic systems are maintenance-friendly and durable. The base bodies with the pneumatically actuable locking mechanisms can be pneumatically driven centering clamps. The locking mechanisms are preferably tensioned without pressure and can be transferred into a released position by compressed air acting on the locking mechanisms. The clamping modules can be connected to a pneumatic ring line of the system via a pneumatic line arranged on the basket carrier.

The locking mechanisms can each have form-fitting elements which are arranged displaceably on the base body. The form-fitting elements can each be displaceable parallel to a plane which is aligned transversely, in particular perpendicularly, to the axis of rotation. The positive-locking elements can preferably be displaced transversely, in particular radially, to a central axis of the respective base body, which in the connected state can coincide with the respective bolt axis. To fix the clamping bolts inserted into the bolt receptacles, the positive-locking elements can be shifted toward the central axis of the respective base body. The positive-locking elements can be locking bolts that are displaceably arranged on the base bodies. Preferably, two of the form-fitting elements, in particular the locking bolts, are displaceably arranged on each of the base bodies and can be arranged diametrically opposite one another. The locking mechanisms can include springs which apply spring force to the form-fitting elements in a locked position, ie towards the central axis of the respective base body. As a result, the clamping bolts are clamped in the clamping modules without pressure. The release process of the locking mechanisms can take place pneumatically or, in principle, also hydraulically. As an alternative to the design as a locking bolt, the positive-locking elements can also be balls arranged on the respective base body so that they can be displaced perpendicularly to the central axis. As a result, the centering clamping systems create a secure connection that holds the centrifuge basket assembly securely on the basket carrier in the connected state, even in the event of disruptions in the operation of the system, for example caused by a failure of the electrical power supply or a failure of pneumatic or hydraulic systems.

In particular, the positive-locking elements of the clamping modules can positively engage in the grooves of the clamping bolts in the connected state fen. As a result, in the connected state, the clamping bolts are fixed at least largely without play in the bolt receptacles of the base bodies, axially and radially with respect to the respective central axis.

• 1 eine erfindungsgemäße Zentrifugenkorbanordnung gemäß einer ersten Ausführungsform mit drei Zentrifugenkörben zum Aufnehmen von Massenteilen in perspektivischer Ansicht von schräg oben;
• 2 die Zentrifugenkorbanordnung aus 1 in perspektivischer Ansicht von schräg unten;
• 3 die Zentrifugenkorbanordnung aus 1 in schematischer Draufsicht;
• 4 eine abgewandelte Ausführungsform der Zentrifugenkorbanordnung basierend auf der Zentrifugenkorbanordnung aus 1 in Schnittansicht, bei der benachbart zueinander angeordnete Körbe einander berühren;
• 5 ein Spannmodul eines erfindungsgemäßen Zentrierspannsystems in Schnittansicht;
• 6 eine vergrößerte Teildarstellung der Zentrifugenkorbanordnung aus 1, in dem ein Spannbolzen eines erfindungsgemäßen Zentrierspannsystems in Schnittansicht gezeigt ist;
• 7 eine Anlage zum Behandeln von Massenteilen mit zwei der Zentrifugenkorbanordnungen aus 1 in perspektivischer Ansicht von schräg oben;
• 8 eine vergrößerte Teildarstellung der Anlage aus 1 in Schnittansicht;
• 9 die Anlage aus 1 in perspektivischer Ansicht von schräg unten, wobei die Zentrifugenkorbanordnungen nicht dargestellt sind; und
• 10 eine erfindungsgemäße Zentrifugenkorbanordnung gemäß einer zweiten Ausführungsform und eine Teilansicht der Anlage zum Behandeln von Massenteilen in perspektivischer Ansicht von schräg oben.

Preferred embodiments of the invention are illustrated in the drawings and described below. Herein shows:

• 1 a centrifuge basket arrangement according to the invention according to a first embodiment with three centrifuge baskets for accommodating mass parts in a perspective view obliquely from above;
• 2 the centrifuge basket assembly 1 in a perspective view obliquely from below;
• 3 the centrifuge basket assembly 1 in schematic plan view;
• 4 a modified embodiment of the centrifuge basket assembly based on the centrifuge basket assembly 1 in a sectional view, in which baskets arranged adjacent to one another touch one another;
• 5 a clamping module of a centering clamping system according to the invention in a sectional view;
• 6 Figure 1 shows an enlarged partial view of the centrifuge basket assembly 1 , in which a clamping bolt of a centering clamping system according to the invention is shown in a sectional view;
• 7 discloses a facility for processing bulk parts with two of the centrifuge basket assemblies 1 in a perspective view obliquely from above;
• 8th an enlarged partial view of the plant 1 in sectional view;
• 9 the plant off 1 in a perspective view obliquely from below, the centrifuge basket assemblies not being shown; and
• 10 a centrifuge basket arrangement according to the invention according to a second embodiment and a partial view of the system for treating mass-produced parts in a perspective view obliquely from above.

the 1 until 3 show a centrifuge basket arrangement 1 for a plant 2 for the treatment of, in particular, bulkable mass parts according to an embodiment of the invention. To illustrate the interaction of the centrifuge basket assembly 1 with the system 2, the system 2 is in the 7 until 9 shown to which two of the centrifuge basket assemblies 1 can be attached.

The centrifuge basket arrangement 1 has a base body 3 which is designed to be rotatable about an axis of rotation D. On the base body 3, here, three baskets 4 are arranged for receiving mass parts. For each basket 4, the base body 3 has a filling and removal opening 5 for the bulk parts. The baskets 4 are open on their upper sides, respectively the sides facing the base body 3, and are fastened, in particular welded, to the base body 3 with their upper ends. The base body 3 protrudes outwards in a flange-like manner, or perpendicular to the axis of rotation D, over the baskets 3 . The base body 3 can also be referred to as a connecting flange. In a plan view, the base body 3 has at least approximately a circular basic shape in a central section, which is adjoined by an angular cross-sectional contour on two diametrically opposite sides.

Clamping bolts 6 for the reversibly detachable attachment of the centrifuge basket arrangement 1 to a basket carrier 7 of the system 2 are arranged on the base body 3 . For this purpose, the clamping bolts 6 interact with clamping modules 8, into which the clamping bolts 6 can be inserted axially and can be clamped in the clamping modules 8 in the inserted state. The clamping modules 8 are structurally separate and independent of the centrifuge basket arrangement 1, arranged on the basket carrier 7. One of the clamping bolts 6 and one of the clamping modules 8 together form a centering clamping system 33, with three of the centering clamping systems 33 being used here to fasten the centrifuge basket arrangement 1 to the basket carrier 7. The centering clamping systems 33 are preferably pneumatic centering clamps.

The base body 3 has a connecting surface 9 on the face side, from which the clamping bolts 6 protrude axially, ie parallel to the axis of rotation D. The clamping bolts 6 each define a bolt axis A, which runs parallel to the axis of rotation D. The connecting surface 9 extends in a plane perpendicular to the axis of rotation D. The baskets 4 protrude axially on an underside 10 of the base body 3 facing away from the connecting surface 9 . The base body 3 is made of a metal and has a thickness of approximately 10 millimeters to 20 millimeters.

In the embodiment shown here, three of the clamping bolts 6 are arranged on the base body 3, which are offset in the circumferential direction about the axis of rotation D at 120 degrees to one another. In principle, however, the centrifuge basket arrangement 1 can also have more than three clamping bolts 6 in order to always be able to hold the centrifuge basket arrangement 1 securely on the basket carrier 7 when rotating about the axis of rotation D. This can be advantageous above all when the centrifugal forces to be expected require an even more stable connection between the centrifuge basket arrangement 1 and the basket carrier 7 make agile. Correspondingly, two sets of three of the clamping modules 8 are arranged on the basket carrier 7, on which two of the centrifuge basket arrangements 1 can be fastened.

The clamping bolts 6 are arranged at the same distance from the axis of rotation D, with the distance being between 250 millimeters and 350 millimeters. Accordingly, the clamping bolts 6 or their bolt axes A lie on an imaginary circle C, which here has a diameter of 600 millimeters, for example. Accordingly, the clamping modules 8 of the respective centrifuge basket arrangement 1 also lie on an imaginary circle whose radius corresponds to the radius of the imaginary circle C on which the clamping bolts 6 are arranged.

The clamping bolts 6 are constructed identically to one another. In the 6 the clamping bolt 6 is shown in detail. It can be seen that the respective clamping bolt 6 has a circumferential groove 12 for clamping the clamping bolt 6 in one of the clamping modules 8 . The groove 12 is at a distance from the connecting surface 9 of the base body 3 . A side surface 13 of the groove 12 that faces the base body 3 and, in relation to the respective bolt axis A, runs around it has the shape of a lateral surface of a truncated cone. Between the groove 12 and the connecting surface 9, the respective clamping bolt 6 has a support section 14 which has a support surface 15 in the shape of a truncated cone. The support surface 15 and the side surface 13 directly adjoin one another, with the side surface 13 having a larger opening angle than the support surface 15 . Both opening angles open towards the connecting surface 9 . An outside diameter of the support section 14 of the respective clamping bolt 6 is larger than an outside diameter of a head section 16 which adjoins above the groove 12 . The groove 12 is thus arranged between the head section 16 and the support section 14 . The head section 16 of the respective clamping bolt 6 has a mushroom-like extension, with the undercut of which the groove 12 begins. The head section 16 has an insertion radius at the free end of the clamping bolt 6 . The clamping bolts 6 are inserted into through holes 17 in the base body 3 and can be screwed to the base body 3 . For this purpose, the clamping bolts 6 can each have a bolt body 18 with a central threaded bore 19 into which a screw 20 for fixing the respective bolt body 18 on the base body 3 can be screwed.

The clamping modules 8 are identical to one another. In the 5 the clamping module 8 is shown in detail. It can be seen that the respective clamping module 8 has a base body 21 with a central bolt receptacle 22 into which the respective clamping bolt 6 can be inserted, and a locking mechanism 23 . In order to insert the bolt body 18 of the respective clamping bolt 6 into the bolt receptacle 22 of the respective clamping module 8, the clamping partners 6, 8 are in pairs, as required by the orientation of the two in the drawing 5 and 6 is shown along the bolt axis A, aligned axially to a central axis M of the respective clamping module M to each other. In the 8th it can be seen that three of the clamping modules 8 are arranged on a respective holding platform 24 of the basket carrier 7 in order to hold the centrifuge basket arrangement 1 . The basket carrier 7 has two of the holding platforms 24 for holding two of the centrifuge basket assemblies 1, which are rotatable about a central carrier axis T as planets. At the in the 7 until 9 In the system 2 shown, the centrifuge basket arrangements 1 can be rotated both about the carrier axis T and about the two axes of rotation D aligned radially spaced apart from the carrier axis T.

With view on 5 it can also be seen that the base body 21 of the respective clamping module 8 is inserted into a bore 25 of the respective holding platform 24 and is screwed to the respective holding platform 24 . The locking mechanism 23 of the respective clamping module 8 has two spring-loaded positive-locking elements 26 . The positive-locking elements 26 are designed as locking bolts. The positive-locking elements 26 are arranged on the respective base body 21 such that they can be displaced radially with respect to a central axis M of the respective clamping module 8 . The positive-locking elements 26 are arranged diametrically opposite one another on the respective base body 21 . Each form-fitting element 26 is acted upon towards the central axis M by a spring (not shown) that is supported relative to the base body 21 . In the connected state, the spring-loaded form-fitting elements 26 engage in a form-fitting manner in the groove 12 of the respective clamping bolt 6 . Accordingly, the clamping bolts 6 are clamped in the clamped state by spring force. The in the 7 until 9 The system shown for treating mass-produced parts 2 has a pneumatic supply system to which the base bodies 21 are connected in order to be able to pneumatically relax the form-fitting elements 26 in order to release the centrifuge basket arrangement 1 from the basket carrier 7, or to be able to move them against the spring force and thus away from the central axes M . The clamping modules 8 can be so-called pneumatically driven centering clamps, which form the centering clamping system 33 together with the clamping bolts 6 . In principle, however, it is also possible for a hydraulic supply system to be provided for releasing the positive-locking elements 26 instead of a pneumatic supply system.

In order to connect the clamping bolts 6 to the clamping modules 8, the clamping partners 6, 8 are aligned in pairs along the central axis M to one another, as in the combination of the two 5 and 6 is shown. Due to their frustoconical surfaces 13, 14, the clamping bolts 6 can compensate for inaccuracies in the alignment with the clamping modules 8 and ensure rapid centering in the bolt receptacles 22. Then the bolt axis A of the respective clamping bolt 6 coincides with the central axis M of the respective clamping module 8 .

In a connected state, the clamping bolts 6 are inserted into the bolt receptacles 22 of the clamping modules 6 and fixed to the base bodies 21 by means of the locking mechanisms 23 . The connected state is in the 7 and 8th shown.

In a released state, the locking mechanisms 23 release the clamping bolts 6 so that the clamping bolts 6 can be displaced axially relative to the base bodies 21 . Then the clamping bolts 6 can be pulled out of the bolt receptacles 22 . The centrifuge basket arrangement 1 can thus be decoupled from the basket carrier 7 in the released state.

A stationary lifting device of the system 2 or a mobile lifting device, for example an industrial truck, can be provided for coupling and decoupling the centrifuge basket arrangement 1 in order to be able to move the height-adjustable centrifuge basket arrangement 1 up to the basket carrier 7 from below or lower it down again. Likewise, the height of the basket carrier 7 can also be adjusted. For gripping and transporting the centrifuge basket arrangement 1, for example with two spaced-apart forks, the base body 3 can have two diametrically opposite grip sections 27, as in particular in FIGS 1 until 3 is recognizable. The handle sections 27 have an angular cross-sectional contour. A circumferentially closed outer edge 34 of the base body 3 follows in a central part 35 between the two handle sections 27 in sections an at least essentially circular path whose center point lies on the axis of rotation D. Between the central part 35 and the handle portions 27, the outer edges 34, such as in particular in the 1 until 3 shown, in a transition section 36 have a rectilinear course. The two handle sections 27 protrude radially to the axis of rotation D over an imaginary circle, along the path of which the outer edges in the central part extend in sections. The diameter of the imaginary circle can be at least around 830 millimeters here. Furthermore, the handle sections 27 can each have a tab 28 which is trapezoidal in plan view, ie along the axis of rotation D, and protrudes radially to the axis of rotation D on the handle section 27 . The tabs 28 each connect to the angular cross-sectional contour at an angle α from here, at least approximately 120 degrees. The length of the base body 3, which extends between the two tabs 28, is here at least approximately 860 millimeters.

With view on 1 until 3 the structure of the baskets 4 of the centrifuge basket arrangement 1 attached to the base body 3 is described in more detail below. The baskets 4 are identical to one another and are each designed to be rotationally symmetrical to a basket axis K of their own. The basket axes K run parallel and radially spaced from the axis of rotation D.

The respective basket 4 is open to the respective filling and removal opening 5 . In the clamped state of the centrifuge basket arrangement 1, the filling and removal openings 5 are closed by covers 29 arranged on the holding platforms 24, as in FIGS 7 and 8th is shown. In the 9 the centrifuge basket assemblies 1 are not attached to the basket carrier 7 .

Furthermore, the respective basket 4 has a bottom wall 30 on the side facing away from the base body 3 . In the circumferential direction around the respective basket axis K, the basket 4 has an in particular cylindrical side wall 31 . The side wall 31 and the bottom wall 30 is liquid-permeable and can be perforated or provided with holes for this purpose.

In the 1 until 3 it is shown that the baskets 4 can be arranged at a distance from one another on the base body 3, so that the side walls 31 of the baskets 4 do not touch. In the 4 a modified embodiment is shown, in which the side walls 31 can touch with line or strip contact L along the axis of rotation D. To clarify the line contact L, the section is in the sectional view according to FIG 4 recognized below the body 3. For both embodiments, in turn, it is equally true that at least approximately at the level of the bottom walls 30, two baskets 4 arranged adjacent to one another are connected to one another or supported against one another by a cross brace 32 each. More cross braces or higher than the cross braces 32 attached on the bottom side are in principle also conceivable and possible.

In the 10 a centrifuge basket arrangement 41 for a system 2 for treating mass-produced parts according to a second embodiment is shown. This embodiment differs from the above embodiments in that the centrifuge basket arrangement 41 has only one basket 4 . The basket 4 is arranged concentrically around the axis of rotation D, so that the axis of the basket K, here, coincides with the axis of rotation D. In addition, the base body 3 does not have any tabs 28 and has a triangular basic shape with the central filling and removal opening 5 in a plan view. With regard to the similarities, reference is made to the above explanations. Overall, the same details are provided with the same reference numbers as in FIGS 1 until 9 .

Reference List

1

centrifuge basket assembly

2

factory

3

body

4

basket

5

Filling and removal opening

6

clamping bolt

7

basket bearer

8th

clamping modules

9

interface

10

bottom

12

groove

13

side face

14

support section

15

support surface

16

head section

17

through hole

18

bolt body

19

threaded hole

20

screw

21

base body

22

bolt mount

23

locking mechanism

24

holding platform

25

drilling

26

interlocking element

27

handle section

28

tab

29

lid

30

bottom wall

31

Side wall

32

cross brace

33

centering system

34

outer edge

35

center part

36

transition section

41

centrifuge basket assembly

a

angle

A

bolt axle

C

circle

D

axis of rotation

K

basket axis

L

line contact

M

central axis

T

beam axis

QUOTES INCLUDED IN DESCRIPTION

This list of documents cited 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 102018111331 A1 [0003]
• US 2416475A [0004]

Claims (25)

Centrifuge basket arrangement (1; 41) for a plant for treating mass-produced parts, comprising: a base body (3) which can be rotated about an axis of rotation (D), at least one basket (4) arranged on the base body (3) for receiving the mass parts, and at least three clamping bolts (6) arranged on the base body (3) and are designed in such a way that the clamping bolts (6) can be clamped in clamping modules that are arranged on a basket carrier of the system. Centrifuge basket arrangement (1; 41) according to claim 1 , characterized in that the clamping bolts (6) protrude from a front connecting surface (9) of the base body (3). Centrifuge basket arrangement (1; 41) according to claim 1 or 2 , characterized in that the clamping bolts (6) each have a circumferential groove (12) for clamping the clamping bolts (6) in the clamping modules. Centrifuge basket arrangement (1; 41) according to claim 3 , characterized in that the grooves (12) are arranged at a distance from the connecting surface (9). Centrifuge basket arrangement (1; 41) according to claim 4 , characterized in that the clamping bolts (6) between the grooves (12) and the connecting surface (9) each have a support section (14) with a circumferential support surface (15), the support surface (15) having the shape of a lateral surface of a truncated cone . Centrifuge basket arrangement (1; 41) according to claim 5 , characterized in that the respective groove (12) has a side surface (13) delimiting the groove (12) on a side facing the support section (14), the side surface (13) having the shape of a lateral surface of a truncated cone. Centrifuge basket arrangement (1; 41) according to claim 6 , characterized in that an included angle of the frustoconical side surface (13) is larger than an included angle of the frustoconical support surface (15). Centrifuge basket arrangement (1; 41) according to claim 6 or 7 , characterized in that the side surface (13) borders directly on the support surface (15). Centrifuge basket assembly (1; 41) according to a Claims 5 until 8th , characterized in that an outside diameter of the support section (14) of the respective clamping bolt (6) is larger than an outside diameter of a head section (16) of the respective clamping bolt (6), with the groove between the support section (14) and the head section (16). (12) of the respective clamping bolt (6) is arranged. Centrifuge basket assembly (1; 41) according to one of Claims 1 until 9 , characterized in that the base body (3) has a through hole (17) for each clamping bolt (6) into which the respective clamping bolt (6) is inserted. Centrifuge basket assembly (1; 41) according to one of Claims 1 until 10 , characterized in that the clamping bolts (6) are screwed to the base body (3). Centrifuge basket assembly (1; 41) according to one of Claims 1 until 11 , characterized in that the clamping bolts (6) are arranged in the circumferential direction around the axis of rotation (D) evenly distributed. Centrifuge basket assembly (1; 41) according to one of Claims 1 until 12 , characterized in that the clamping bolts (6) are arranged equidistant from the axis of rotation (D). Centrifuge basket assembly (1; 41) according to one of Claims 1 until 13 , characterized in that the base body (3) has a filling and removal opening (5) for each basket (4). Centrifuge basket assembly (1; 41) according to one of Claims 1 until 14 , characterized in that the at least one basket (4) projects on an underside (10) of the base body (3) facing away from the clamping bolts. Centrifuge basket assembly (1; 41) according to one of Claims 1 until 15 , characterized in that the at least one basket (4) is open on a side facing the base body (3) and is delimited at the bottom by a liquid-permeable bottom wall (30) and circumferentially by a liquid-permeable side wall (31). Centrifuge basket assembly (1) according to one of Claims 1 until 16 , characterized in that on the base body (3) three of the baskets (4) are arranged for receiving mass parts. Centrifuge basket assembly (1) according to Claim 17 , characterized in that the baskets (4) are spaced apart. Centrifuge basket assembly (1) according to Claim 17 or 18 , characterized in that the baskets (4) are connected to one another by means of cross braces (32). Centrifuge basket assembly (1) according to one of claims 17 until 19 , characterized in that the baskets (4) have the same dimensions. Centrifuge basket assembly (1; 41) according to one of Claims 1 until 20 , characterized in that the base body (3) is designed as a connecting flange. Centrifuge basket assembly (1) according to one of Claims 1 until 21 , characterized in that the base body (3) has two diametrically opposite grip sections (27) for gripping the centrifuge basket arrangement (1) with a lifting device. Centrifuge basket assembly (1) according to Claim 22 , characterized in that the handle sections (27) each have an angular cross-sectional contour. Centrifuge basket assembly (1) according to Claim 22 or 23 , characterized in that the handle sections (27) each have a tab (28) which is trapezoidal in plan view and protrudes radially from the handle section (27) in relation to the axis of rotation (D). Use of centering clamping systems (33) for fastening a centrifuge basket arrangement (1; 41) according to one of Claims 1 until 24 on a basket support (7) of a system (2) for treating mass-produced parts, the centering clamping system comprising the clamping bolts (6) arranged on the base body (3) of the centrifuge basket arrangement (1; 41) and the clamping modules arranged on the basket support (7) of the system (2). (8) for clamping the clamping bolts (6) in the clamping modules (8).

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