Device for collecting machining suspensions used during machining of ceramic parts, with ceramic removal / tool wear

Abstract

The present invention relates to a device (10) with a container (11) for collecting machining suspensions, in particular polishing suspension, used during the machining of workpiece parts in a machine tool (20) for machining workpiece parts, and a machine tool (20) with at least one tool spindle (21) for receiving tools and at least one workpiece spindle (22) for receiving and holding a workpiece part to be machined, wherein this collecting device is provided between the workpiece spindle (22) and the tool spindle (21).

Description

[0001] The present invention relates to a device for collecting machining suspensions used during the machining of workpiece parts with material removal / tool ​​wear, and to a machine tool with this collecting device. Description

[0002] Ceramic substrates or components are used in various technical fields, such as the electronics industry, the automotive industry, and medicine (for example, as hip joint prostheses). In some areas, technical ceramics have replaced metals and plastics due to their extremely hard and wear-resistant properties. Technical ceramics are particularly useful in areas where other materials reach their limits or where the efficiency of systems needs to be improved.

[0003] The aforementioned hip prostheses consist of two parts: a spherical head and a cup-shaped socket. In the past, the head and socket were made of metal and / or plastic. Both materials have disadvantages, such as high wear and relatively large wear particles. The use of high-performance ceramic for the spherical head offers an improvement, resulting in very small wear particles and higher wear resistance.

[0004] Ceramics are non-metallic, inorganic, temperature-resistant materials that are at least 30% crystalline and are only sparingly soluble or not soluble in water. Thus, there are silicate, oxide, and non-oxide ceramics. Commonly used materials for the production of ceramics are based on silicates, aluminum oxide, zirconium dioxide, silicon carbide, and silicon nitride.

[0005] Ceramics are generally manufactured as follows: first, a semi-solid, not yet load-bearing blank is formed at room temperature from a raw material consisting of ceramic powder and binder. This blank, also known as a green body, is a relatively soft, chalky material that can still be easily machined (for example, by sawing, milling, or turning). It is also common to use a dry pressing compound to produce the green body, which eliminates the need for drying after shaping.

[0006] The processed green body is then subjected to heat treatment (sintering), which transforms it into a dense, hard material. After firing or sintering, the surfaces of the components often exhibit roughness, which is removed in a post-processing procedure (such as grinding, lapping, polishing, etc.). For example, the spherical ceramic heads intended for a hip joint prosthesis must be polished after sintering to meet the required specifications.

[0007] Lapping and polishing improve the dimensional accuracy and surface quality (e.g., grinding, preparation, sealing surfaces) of ceramic parts. The machining material used for this consists of a wet, loose grain, such as diamond or B4C particles. This is costly, but necessary to meet the requirements (e.g., when used as joint prostheses).

[0008] For the polishing process, the ceramic ball head is clamped into a polishing machine and polished using diamond particles. The polishing machines used typically consist of one or two processing stations and one or two extraction ports.

[0009] Polishing ceramic or metallic spherical surfaces generates fine particles and polishing compound residues that disperse into the surrounding area. This can lead to contamination requiring subsequent and costly cleaning. Existing solutions such as extraction systems or filter mats are often ineffective or difficult to integrate.

[0010] The polishing machines used must therefore be cleaned and maintained regularly, and it has been shown that a polishing machine with two processing stations has an additional monthly expense according to the cleaning and maintenance plan compared to the older generation of polishing machines with one processing station.

[0011] Furthermore, conventional polishing machines – which have a low degree of automation – discard the diamond particles used for polishing, resulting in high costs. To reduce costs, it would be desirable not to simply dispose of the used diamond particles, but to reuse them whenever possible.

[0012] It was therefore the object of the present invention to provide a device that enables the collection and recycling of the processing suspensions used for polishing, in particular polishing suspension and the particles (especially diamond particles) contained therein.

[0013] Furthermore, the objective of the present invention was to provide an optimized splash guard against aggressive polishing dirt and other contaminants.

[0014] These tasks are solved with a container and a device having the features of the pending claims.

[0015] Accordingly, a container for collecting machining suspensions, in particular polishing suspension, used during the machining of workpiece parts is provided in a machine tool for machining workpiece parts. wherein the machine tool comprises at least one tool spindle for receiving tools and at least one workpiece spindle (or workpiece holding device) for receiving and holding the workpiece part to be machined, wherein the container is provided for arrangement between the workpiece spindle and the tool spindle, wherein the container comprises at least four side surfaces A, B, C, D, a top surface E and a bottom surface F, wherein the container further comprises: at least one first opening in at least one first side surface A of the container configured to receive the at least one tool spindle, at least one second opening configured to receive the at least one workpiece spindle, wherein the second opening extends over at least two further side surfaces B, C of the container (where the side surfaces B, C do not correspond to the first side surface A),at least one third opening configured for receiving and securing at least one bottle for collecting (collection bottle) of machining suspension, wherein the at least one third opening configured for receiving the at least one collection bottle is arranged in a lower region of the container (preferably near the bottom F) such that the machining suspension can flow automatically from the container into the at least one collection bottle by gravity, and at least one fourth opening configured for connection to a suction device.

[0016] Accordingly, a collection container (or collection bell) is provided for collecting the machining suspension used during the processing of workpiece parts, particularly ceramic parts (for example, ceramic ball heads), which is positioned in or above the machining station for external machining (for example, external polishing) of the workpiece part, particularly the ceramic part. The present collection container is provided as part of a device that, in addition to the collection container, includes an extraction device connected to the container and, optionally, a linear module to which the collection container is attached.

[0017] A polishing suspension containing diamond particles (diamond powder-oil mixture) or boron carbide B4C particles is preferably used as the processing suspension. The polishing suspension is a creeping, abrasive medium with high viscosity.

[0018] The present collection container and the collection device encompassing the collection container offer a simple and efficient way to bind polishing dirt directly at the point of origin and to minimize its spread.

[0019] The present invention provides a compact, lightweight and efficiently positionable collection or extraction bell that is located in the immediate vicinity of the polishing tool, but does not interfere with the primary working area of ​​the polishing device, yet still enables effective dirt collection directly at the point of action.

[0020] The present collection container or catch bell is designed in such a way that it can be mounted on a linear module, e.g., a linear slide or stroke, outside the action radius of a polishing tool, especially in the context of automated polishing of hip joint implants.

[0021] The present collection device also makes it possible to collect the resulting machining suspension directly and, if necessary, to return it to the machining process and recycle it after processing. This ensures multiple reuses of the polishing particles (such as diamond particles), which is associated with cost reductions.

[0022] Furthermore, a reduction in the previously time-consuming cleaning steps becomes possible. The procurement and disposal of cleaning cloths and the associated cleaning measures are eliminated. Contact between the cleaning employee and aggressive polishing residue and other contaminants is also reduced, leading to increased employee satisfaction.

[0023] Overall, the present collection device, including the collection container or catch bell, offers a multitude of advantages: effective capture of polishing dirt directly at the source, reduction of cleaning effort after the polishing process, simple application without complex modification of existing polishing systems, no interference with the working area of ​​the polishing tool, improved dirt capture due to proximity to the source, easy reproducibility of the collection container through 3D printing, retrofitability to existing automation systems, cost-effective manufacturing and adaptation.

[0024] The invention is explained in more detail below. Machine tool for machining workpiece parts

[0025] As stated above, the collection device according to the invention is intended for collecting machining suspensions used during the machining of workpiece parts, in particular ceramic parts, in combination with a machine tool, in particular a polishing machine, for machining workpiece parts, in particular ceramic parts.

[0026] The machine tool comprises a tool spindle for holding tools and a tool motor for driving the tool spindle. The workpiece to be machined (e.g., a ceramic part) is held in a workpiece spindle or workpiece holding device.

[0027] The workpiece spindle and tool spindle can be positioned relative to each other in an xy-plane, preferably around three or more machining axes.

[0028] The collection device with its collection container or catch bowl is positioned between the tool spindle and the workpiece spindle. The collection device is arranged so that during the machining process of the workpiece part (such as a ceramic part), both the workpiece part (such as a ceramic part) in the workpiece spindle and the corresponding tool in the tool spindle are contained and covered by the collection container of the collection device, thus allowing particles generated during machining, as well as the machining suspension used, to be collected directly in the collection container of the collection device.

[0029] As mentioned above, the arrangement of the collection device between the tool spindle and the workpiece spindle involves the collection container being attached to a movable module or slide. The slide allows for vertical or horizontal movement of the collection container. By precisely moving the slide, the attached collection container can be adaptively positioned near the respective polishing area without colliding with the polishing tool. Collection container of the collection device

[0030] As described, the collection container comprises at least four side surfaces A, B, C, D, a top surface E and a bottom surface F.

[0031] The side surfaces A and C, the side surfaces B and D, as well as the top surface E and bottom surface F of the container are preferably arranged opposite each other.

[0032] In one embodiment of the container, the side surfaces A, B, C, D and the top E / bottom F are each arranged at a right angle to each other. Thus, the side surfaces and the top / bottom meet at right angles.

[0033] In a preferred embodiment of the container, the edge lines along the side surfaces B and C of the container are rounded; that is, the container has a rounded corner or edge along these side surfaces. As will be explained later, this rounding allows the workpiece spindle to move along an opening across the two side surfaces. The angle of the corner rounding should be chosen such that the center point of the extraction nozzle almost coincides with the center of the sphere of the ceramic part.

[0034] This collection container or collection flake captures and binds the polishing debris generated during the polishing process. The collection flake is made of a special, temperature-resistant material with a high affinity for polishing mist and residues.

[0035] The collection container or collection flake is preferably manufactured additively using 3D printing, in particular SLS 3D printing. Selective laser sintering (SLS) is an additive manufacturing process for producing three-dimensional structures from a powdered raw material by sintering with a laser. In this process, a thermal energy source (laser) melts powder particles in the build area, and then a new layer of powder is applied, and the process is repeated. The powdered raw material used is based on thermoplastic polymers such as polyetheretherketone (PEEK), polyetherketoneketone (PEKK), polylactic acid (PLA), nylon, polyetherimides, polymethyl methacrylate (PMMA), polyphenylsulfone (PPSU), polyurethane (PUR), polyvinyl butryl (PVB), polycarbonate (PC), or acrylonitrile butadiene styrene (ABS).

[0036] The dimensions of the collection container depend essentially on the dimensions of the machine tool and the resulting working space between the workpiece spindle and the tool spindle. In one embodiment, the side surfaces AD can each have a length between 8 and 15 cm, preferably between 9 and 14 cm, e.g., 9 cm or 13 cm, and a width between 5 and 10 cm, preferably between 6 and 8 cm. The top surface E and bottom surface F can, for example, have a length between 10 and 15 cm, preferably between 12 and 14 cm, e.g., 13 cm, and a width between 8 and 10 cm, e.g., 9 cm. However, these specifications are only to be considered exemplary and not limiting, since the size of the collection container can be adapted to the working space of the polishing tool as needed. Opening of the collection container for tool spindle

[0037] The collecting container according to the invention has at least one first opening in at least one side surface A configured to receive the at least one tool spindle.

[0038] In one embodiment, it is provided that the at least one first opening, preferably a circular opening, for receiving the at least one tool spindle has an internal chamfer with an angle of 10 to 40°, preferably 15 to 30° for a return flow of the polishing suspension.

[0039] The size of the opening depends on the size of the tool spindle and can therefore be adjusted as desired. In one possible embodiment, the opening for the tool spindle has a diameter between 5 and 15 cm, preferably between 6 and 12 cm, and particularly preferably between 7 and 10 cm, e.g., 8 cm. Opening of the collection container for workpiece spindle

[0040] The collection container according to the invention further has at least one second opening configured to receive the at least one workpiece spindle, wherein the opening extends over at least two further side surfaces B, C of the container, wherein the side surfaces B, C do not correspond to the first side surface A.

[0041] In one embodiment, the at least one second opening for receiving the at least one workpiece spindle has an internal chamfer with an angle of 10 to 40°, preferably 15 to 30°, for a return flow of the polishing suspension.

[0042] In one embodiment, the at least one second opening for receiving the at least one workpiece spindle is designed as an elongated opening that extends in an arc over the (rounded) edge across side surface B and side surface C.

[0043] The second opening for receiving at least one workpiece spindle can also be described as a slot that runs in an arc or semicircle across the two side surfaces.

[0044] In a further variant, the second opening for receiving the at least one workpiece spindle can be designed and described in such a way that the slot-shaped opening extends parallel to the underside and top side of the collection container and two semicircles form the end of the opening (a first semicircle in the side surface B and a second semicircle in the side surface C).

[0045] The geometric design of the second opening for receiving the at least one workpiece spindle thus enables movement of the workpiece spindle (and the workpiece to be polished) in an xy-plane (relative to the tool spindle).

[0046] In a further embodiment, a brush strip is provided along the edges of the at least second opening for receiving the at least one workpiece spindle.

[0047] The size of the second opening for the workpiece spindle is preferably adapted to the diameter of the first opening for the tool spindle. Thus, the diameter of the second opening can be equal to the diameter of the first opening.

[0048] The brush strip can be designed as a strip brush. Preferably, the strip brush is temperature resistant up to 180°C, preferably up to 220°C. Opening of the collection container for the collection bottle

[0049] According to the invention, the container of the collecting device has at least one third opening configured to receive and secure at least one bottle for collecting (collecting bottle) machining suspension, wherein the at least one third opening for receiving the at least one collecting bottle is arranged in a lower region of the container (i.e. preferably in or near the bottom F) such that the machining suspension can flow automatically from the container into the at least one collecting bottle by means of gravity.

[0050] In order to enable the automatic flow of the processing suspension into the collection bottle (when used as intended), the container of the collection device has at least one section for the drainage of the processing suspension which is not horizontal but rather inclined with respect to the vertical axis (i.e. this section includes an angle with respect to the vertical of less than 90°).

[0051] This can be achieved through various designs.

[0052] According to a first design or a first embodiment, at least one section of the underside F of the container runs with an inclination towards the at least one third opening for the collecting bottle, so that the processing suspension (e.g. polishing suspension) can flow automatically from the underside F of the container into the at least one collecting bottle by means of gravity.

[0053] The inclined section can comprise the entire underside F of the collection container, i.e., the entire underside F runs at an inclination from a (rear) side face B to a (front) side face D. The inclination of the underside F of the collection container can be between 10° and 40°, preferably between 15° and 30° (with respect to the horizontal).

[0054] In this first design or embodiment, the at least one third opening for receiving and securing the collection bottle is preferably provided in the underside F of the collection container. The collection bottle is screwed into the third opening of the collection container, i.e., there is a detachable connection between the bottle and the collection container. For this purpose, the collection bottle has an external thread, and the third opening of the collection container has a complementary internal thread, meaning that the collection bottle can thus be easily mounted and dismounted.

[0055] According to a second design or embodiment, in addition to at least a partial inclination of the underside F of the collection container, a projection or projection is flanged to the collection container (and protrudes accordingly from the collection container), wherein the projection has at least one third opening for the collection bottle.

[0056] The projection flanged to the collection container has an inclination towards the at least one third opening for the collection bottle, so that the processing suspension can flow by gravity from the underside F of the container into the flanged projection and from there into the at least one collection bottle automatically.

[0057] In one embodiment of the collection container, according to the second design or second embodiment, it is provided that the side surface D and the underside F of the collection container do not contact each other in at least one section, so that at least one section between the side surface D and the underside F is open, with the projection being flanged to at least one open section.

[0058] In another preferred embodiment, the protruding projection (or projection) extends over the entire length of the contact line between side surface D and bottom surface F of the collecting container. In this embodiment, side surface D and bottom surface F are not in contact along their entire length, so that the projection flanged to side surface D and bottom surface F extends over the entire length of both.

[0059] The flanged projection is inclined at an angle of 30 to 60°, preferably 40 to 50°, with respect to the side surface D of the collection container and also at an angle of 30 to 60°, preferably 40 to 50°, with respect to the underside F of the collection container.

[0060] The second design or embodiment of the collection container with the aforementioned section or projection can also be described as follows: The (front) side surface D of the collection container is shortened by an amount m, and the bottom surface F of the collection container is shortened by an amount n. The corners of side surfaces A and C, which meet side surface D and bottom surface F, are removed by amounts m and n, respectively, and thus adapted to the shortened side surface D and bottom surface F. The collection container now has an elongated opening that runs along the shortened side surface D and bottom surface F and from side surface A to side surface C.

[0061] The projection or protruding section of the collection container is flanged or attached at a predetermined angle (with respect to the side surface D and the underside F) along the elongated opening between the shortened side surface D and underside F and from the side surface A to the side surface C of the collection container.

[0062] The at least one third opening for attaching the collection bottle can be provided at any position on the inclined, flanged projection. Preferably, the at least one third opening for attaching the collection bottle is provided on the right side of the housing (when viewed from the front side surface D). Opening of the collection container for connection to the suction device

[0063] According to the invention, the container of the collecting device has at least a fourth opening which is configured for connection with a suction device.

[0064] This fourth opening can be circular or slot-shaped. The connection to the extraction device can be flexible (e.g., a hose) or rigid (e.g., an extraction duct).

[0065] In one embodiment, the collection container of the present collection device has at least one fourth opening, a circular opening with an outwardly pointing suction nozzle for attaching a suction device, e.g., a suction hose. This (fourth) circular opening with suction nozzle allows the attachment of a (flexible) suction hose, which serves to extract polishing suspension mist (possibly aerosols) and ceramic particles generated during ceramic processing.

[0066] In one embodiment of the collection container, it is provided that the at least one fourth circular opening with suction nozzle for attaching a suction hose is arranged on a (front) side surface D of the container, i.e. on a side surface of the collection container that does not have any of the openings for tool spindle and workpiece spindle.

[0067] In another embodiment of the collection container, the circular opening with suction nozzle for attaching a suction hose can be provided on the top surface E or on the edge connecting the (front) side surface D and the top surface E. In the latter case, the suction nozzle extends obliquely upwards. In this embodiment, the suction nozzle for attaching a suction hose can be arranged on the (front) side surface at an angle of between 10° and 40°, preferably at an angle of 15° to 30° (with respect to the side surface D).

[0068] In a further preferred embodiment, the fourth opening is slot-shaped. The slot-shaped opening extends at least partially, preferably completely, over the length of a side surface, preferably side surface D of the collection container, i.e., over the side surface of the collection container that does not have any of the openings for the tool spindle and workpiece spindle.

[0069] This slot-shaped opening is configured for connecting or attaching a suction device, which can be a flexible suction hose or a suction duct. In the case of a suction duct, it consists of a rigid material, such as plastic or metal.

[0070] The invention is explained in more detail below with reference to the exemplary embodiments and the figures. The figures show: Figure 1A - Your first embodiment of the collection device according to the invention; Figure 2A - A second embodiment of the collection device according to the invention; and Figure 3 - A third embodiment of the collection device according to the invention.

[0071] The in the Figures 1A-1D The first embodiment of the collecting device (10) and the collecting container (11) according to the invention is provided between the workpiece spindle (22) and the tool spindle (21) of a machine tool (20). The workpiece spindle (22) and the tool spindle (21) can be positioned relative to each other in an xy-plane.

[0072] The collecting device (10) comprises a container (11) with four side faces A, B, C, D, a top face E, and a bottom face F. The side faces A and C, the side faces B and D, and the top face E and bottom face F are arranged opposite each other. The edge lines along the side faces B and C are rounded, i.e., the collecting container has a rounded corner here (see also the Figure 2C, D ).

[0073] The container (11) has four openings (12, 13, 14, 16): a first opening (12) in side surface A of the container (11) for receiving the at least one tool spindle (21); a second opening (13) for receiving the workpiece spindle (22), wherein the second opening (13) extends over the side surfaces B, C of the container (11); a third opening (14) for receiving a collection bottle (15) for collecting machining suspension, and a fourth opening (16) with outwardly pointing extraction nozzles (17) for attaching an extraction hose.

[0074] The first opening (12) for receiving the at least one tool spindle (21) is a circular opening (see Figure 1C ).

[0075] The second opening (13) for receiving the workpiece spindle (22) is an elongated opening that extends in an arc over the (rounded) edge over the side surface B and side surface C of the container (11) (See Fig. 1A , but also Figures 2D, 2E ).

[0076] The second opening (13) for receiving the at least one workpiece spindle (22) can also be described as a slot extending in an arc or semicircle across the two side surfaces. Alternatively, the second opening (13) for receiving the at least one workpiece spindle can be designed and described such that the slot-shaped opening extends parallel to the underside and top side of the collection container (11), with two semicircles forming the ends of the opening (a first semicircle in side surface B and a second semicircle in side surface C). The geometric design of the second opening (13) for receiving the at least one workpiece spindle thus allows movement of the workpiece spindle (and the workpiece to be polished) in an xy-plane (relative to the tool spindle); see [reference]. Figure 1B .

[0077] A brush strip (18) is provided along the edges of the second opening (13) for receiving the workpiece spindle (22) (see Fig. 1A ).

[0078] The third opening (14) for receiving (and securing) the collection bottle (15) is provided in the underside F of the collection container, see Figures 1A , 1C The third opening (14) has an internal thread into which an external thread of the collection bottle engages to form a detachable connection. The machining suspension collected in the collection container during the processing of the ceramic workpiece can flow automatically from the container into the collection bottle (15) by gravity.

[0079] This is carried out according to Figure 1A , 1CThe underside F of the container (11) is inclined towards the third opening (14) for the collection bottle (15), so that the polishing suspension can flow by gravity from the underside F of the container (11) through the third opening (14) into the collection bottle (15). The inclination of the underside F of the collection container (11) is between 15 and 30°.

[0080] The fourth circular opening (16) with suction nozzle (17) for attaching a suction hose can be located on the top surface E or on the edge connecting the (front) side surface D and the top surface E. In the latter case, the suction nozzle extends obliquely upwards. The suction nozzle (17) is then arranged at an angle of 15–30° (with respect to the side surface D) (see Figures 1A , 1C )

[0081] According to the Figures 2A-EIn the second embodiment shown, the collection container (11) has, in addition to an inclination of the underside F of the collection container, a projection (19) which is flanged to the collection container (and accordingly protrudes from the collection container). The third opening (14) for the collection bottle (15) is provided in this projection (19).

[0082] As in the Figures 2A , B, E recognizable, the projection (19) runs with an inclination towards the third opening (14) for the collecting bottle (15), so that the polishing suspension can flow by gravity from the underside F out of the container (11) into the flanged projection (19) and into the collecting bottle (15) automatically.

[0083] The flanged projection (19) extends over the entire length of the contact line between the side surface D and the underside F of the container (11).

[0084] The flanged projection (19) is inclined at an angle of 40 to 50° with respect to the side surface D and also at an angle of 40 to 50° with respect to the underside F (See Figures 2A , B, E)

[0085] The second design or embodiment of the collection container with the protruding section or projection can also be described as follows (see Figures 2A , B, E).

[0086] The (front) side face D is reduced by an amount m, and the bottom surface F is reduced by an amount n. The corners of side faces A and C, which meet side face D and bottom surface F, are removed by amounts m and n, respectively, and thus adapted to the reduced side face D and bottom surface F. The collecting container now has a (triangular) elongated opening that runs along the reduced side face D and bottom surface F and from side face A to side face C.

[0087] The housing or housing section is flanged or attached at a predetermined angle (with respect to the side surface D and the underside F) along the elongated opening between the shortened side surface D and underside F and from side surface A to side surface C.

[0088] The third opening (14) for attaching the collection bottle (15) can be provided at any position on the inclined, flanged projection. Preferably, the at least one third opening for attaching the collection bottle is provided on the right side of the projection housing (when viewed from the front side surface D) (see Figures 2A , B, E).

[0089] The fourth opening (16) with suction nozzle (17) for attaching a suction hose is provided on the (front) side surface D of the container (11) (see Figures 2A,B ).

[0090] According to the in Figure 3In the third embodiment shown, the collecting device (10) again consists of a container (11) with four side surfaces A, B, C, D, a top surface E and a bottom surface F. The side surfaces A and C, the side surfaces B and D, as well as the top surface E and bottom surface F are arranged opposite each other. The edge lines along the side surfaces B and C are rounded.

[0091] The container (11) also has four openings (12, 13, 14, 16): a first opening (12) in side surface A of the container (11) for receiving the at least one tool spindle (21); a second opening (13) for receiving the workpiece spindle (22), wherein the second opening (13) extends over the side surfaces B, C of the container (11); a third opening (14) for receiving a collection bottle (15) for collecting machining suspension.

[0092] The fourth opening (16) for connection to a suction device is designed as a slot. The slot-shaped opening (16) extends along the length of the side surface D of the collection container. This slot-shaped opening is configured for connecting a suction device, with the connection here being provided as a suction channel (17a). List of reference symbols

[0093] 10. Collection device 11. Container of the collection device 12. First opening of the container for receiving the tool spindle 21 13. Second opening of the container for receiving the workpiece spindle 22 14. Third opening of the container for receiving the collection bottle 15 15. Collection bottle 16. Fourth opening of the container with extraction nozzle 17 17. Extraction nozzle 17a. Extraction duct 18. Brush strip 19. Projection flanged to the container 11 20 Machine tool 21 Tool spindle 22 Workpiece spindle

Claims

1. Container (11) for collecting machining suspensions, in particular polishing suspension, used during the machining of workpiece parts in a machine tool (20) for machining workpiece parts, wherein the machine tool (20) comprises at least one tool spindle (21) for receiving tools and at least one workpiece spindle (22) for receiving and holding the workpiece part to be machined, wherein the container (11) is arranged between the workpiece spindle (22) and the tool spindle (21), wherein the container (11) comprises at least four side surfaces A, B, C, D, a top surface E and a bottom surface F, wherein the container (11) further comprises: at least one first opening (12) in at least one first side surface A of the container (11) configured to receive the at least one tool spindle (21), at least one second opening (13) configured to receive the at least one workpiece spindle (22),wherein the second opening (13) extends over at least two further side surfaces B, C of the container (11), at least a third opening (14) configured to receive at least one bottle (15) for collecting machining suspension (collection bottle), wherein the at least one third opening (14) for receiving the at least one collection bottle (15) is arranged in a lower region of the container (11) such that the machining suspension can flow automatically from the container (11) into the at least one collection bottle (15) by gravity, and at least a fourth opening (16) configured for connection to a suction device.

2. Container according to claim 1, characterized by the fact that the side surfaces A and C, the side surfaces B and D, as well as the top surface E and bottom surface F of the container (11) are arranged opposite each other.

3. Container according to any one of the preceding claims, characterized by the fact thatthe side surfaces A, B, C, D and the top E and bottom F of the container (11) are each arranged at a right angle to each other.

4. Container according to any of the preceding claims, characterized by the fact that the edge lines along the side surfaces B and C are rounded.

5. Container according to any one of the preceding claims, characterized by the fact that the at least one first opening (12), preferably a circular opening, for receiving the at least one tool spindle (21) has an internal chamfer with an angle of 10 to 40°, preferably 15-30° for a return of the machining suspension.

6. Container according to any of the preceding claims, characterized by the fact that which has at least one second opening (13) for receiving the at least one workpiece spindle (22) and an internal chamfer with an angle of 10 to 40°, preferably 15 to 30° for a return of the machining suspension.

7. Container according to any of the preceding claims, characterized by the fact that the at least one second opening (13) for receiving the at least one workpiece spindle (22) is an elongated opening which extends in an arc over the (rounded) edge over the side surface B and side surface C of the container (11).

8. Container according to any one of the preceding claims, characterized by the fact that a brush strip (18) is provided along the edges of the at least second opening (13) for receiving the at least one workpiece spindle (22).

9. Container according to any of the preceding claims, characterized by the fact that the underside F of the container (11) has an inclination towards the at least one third opening (14) for the collecting bottle (15), so that the polishing suspension can flow by gravity from the underside F of the container (11) through the at least one third opening (14) into the at least one collecting bottle (15).

10. Container according to any of the preceding claims, characterized by the fact that The fourth opening (16) for connection to a suction device may be circular or slot-shaped.

11. Container according to any of the preceding claims, characterized by the fact that the connection to the extraction device is flexible, preferably as a hose, or rigid, preferably as an extraction channel (17a).

12. Container according to any one of the preceding claims, characterized by the fact that the container (11) is configured for mounting on a linear module, preferably a linear slide or linear stroke.

13. Container according to any of the preceding claims, characterized by the fact that the container (11) can be manufactured additively using 3D printing, in particular SLS 3D printing.

14. Device (10) for collecting machining suspensions used during the machining of workpiece parts comprising a container (11) according to one of the preceding claims, an extraction device connected to the container and optionally a linear module to which the container is attached.

15. Machine tool (20) with at least one tool spindle (21) for receiving tools and at least one workpiece spindle (22) for receiving and holding a workpiece part to be machined, wherein a collecting device according to claim 14 is provided between the workpiece spindle (22) and the tool spindle (21).

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