Workpiece machining device with a machine tool

Abstract

The invention relates to a saw assembly with a circular saw (30) for guiding on a guide rail (10), wherein the guide rail (10) is used to linearly guide the circular saw (30) in a rail longitudinal direction, wherein the circular saw (30) has a dust extractor (34) connected to a saw blade holder (33). For easier handling of such a saw assembly, the invention proposes a chip guidance adapter (50), which has a housing (41) with a chip guidance channel (51), wherein the chip guidance channel (51) forms a connection between the dust extractor (34) and a chip collection channel (15) which is or can be allocated to the guide rail (10), wherein the saw assembly has a disconnectable mechanical interface, and wherein the mechanical interface is designed to enable the circular saw (30) to be disconnected from the chip guidance adapter (50), the chip guidance adapter (50) to be separated or the chip guidance adapter (50) to be disconnected from the guide rail (10) or from the chip collection channel (51) at any position in the direction of the longitudinal extent of the guide rail (10).

Description

[0001] Workpiece processing device with a processing machine

[0002] The invention relates to a workpiece processing device comprising a processing machine, in particular a sawing arrangement comprising a circular saw or a milling arrangement comprising a milling machine, in particular a router, or a drilling arrangement comprising a drill. The processing machine, in particular the circular saw or milling machine or drill, is designed for guidance on a guide rail, wherein the guide rail serves for linear guidance of the processing machine in a longitudinal direction of the rail, and wherein the processing machine has a saw blade holder with a dust extraction system.

[0003] Saw arrangements are widely known. With the aid of the guide rail, the circular saw can make a precisely straight cut into a workpiece. The guide rail is designed with a guide mount to guide the circular saw precisely in the longitudinal direction of the rail.

[0004] A guide rail is therefore understood to be an element that rests on the top surface of a workpiece and serves to guide the saw assembly along a guide direction of the guide rail in order to create a saw cut in the workpiece. The guide rail is usually placed with one contact side against a scribe mark on the top surface of the workpiece in order to create the saw cut along the scribe mark in the workpiece.

[0005] The circular saw has a circular saw blade arranged in the saw blade holder. The saw blade holder thus surrounds the circular saw blade at least in part to protect the user of the circular saw during operation and to protect the surrounding area from dust caused by sawdust generated during operation. The circular saw can have a guide unit, for example in the form of a guide table, for guidance on the guide rail or along a workpiece surface. Advantageously, the guide unit can have a longitudinal guide groove that extends parallel to the saw blade. Thus, the longitudinal guide groove can serve for linear guidance of the circular saw in a longitudinal direction of the guide rail when the circular saw is placed on the guide rail.

[0006] Saw assemblies capable of cutting large-format workpieces are also known from the prior art. For this purpose, the circular saw is permanently mounted to the guide rail. A drive control system is installed at one long end of the guide rail. With this drive control system, the feed of the circular saw in the longitudinal direction of the rail can be managed automatically using a drive system integrated into the circular saw. The drive system also offers the option of returning the circular saw to its starting position after the cut has been completed. These assemblies are heavy and difficult to handle due to the long length of the guide rail.

[0007] It is an object of the invention to provide a workpiece processing device, in particular a sawing arrangement, of the type mentioned at the outset, which is characterized by improved ease of use.

[0008] The object of the invention is solved with the features of claim 1.Accordingly, in particular a saw arrangement is proposed in which, according to the invention, a chip guide adapter is provided which has a housing with a chip guide channel, wherein the chip guide channel forms a connection between the dust discharge of the processing machine, in particular the circular saw, and a chip collection channel which is or can be assigned to the guide rail, wherein the workpiece processing device, in particular the saw arrangement, has a separable mechanical interface, and wherein the mechanical interface is designed to enable a coupling or separation of the chip guide adapter from the guide rail or the chip collection channel in a direction transverse, in particular perpendicular, to the longitudinal extent of the guide rail or to enable a separation of the processing machine, in particular the circular saw, from the chip guide adapter or a division of the chip guide adapter.

[0009] This makes handling of the workpiece processing device, in particular the saw assembly, considerably easier.

[0010] In particular, the user can, for example, transport and handle the circular saw independently of the guide rail. They can first place the guide rail on the workpiece to be machined and align it as desired. They can then place the circular saw on the guide rail, for example at any point along the longitudinal extent of the guide rail, whereby the mechanical interface then also couples the chip guide channel of the chip guide adapter with the chip collection channel of the guide rail. With such a saw arrangement, even large-format workpieces can be cut without any problems. The chip collection channel can be formed as one piece with the guide rail. However, it is also conceivable for the chip collection channel to be formed by a separate component which is connected to the guide rail.This allows a user to use, for example, a commercially available guide rail for hand-held circular saws, and then additionally connect it to the chip collection channel to implement the solution according to the invention. The mechanically separable interface is preferably designed so that it can be manually released without the need for tools to achieve the desired separation.

[0011] According to a preferred variant of the invention, it can be provided that the chip guide adapter forms a subassembly with the circular saw, and that the mechanical interface is formed in the transition region between the chip guide adapter and the guide rail or the chip collection channel. The circular saw can then be pre-equipped or equipped with the chip guide adapter. The circular saw can then be placed onto the guide rail in a seating movement, wherein the mechanical interface is preferably connected simultaneously with this seating movement in order to couple the chip guide adapter to the guide rail. Alternatively, however, it is also conceivable that the chip collection channel and / or the guide rail form a subassembly with the chip guide adapter, and that the mechanical interface is formed in the transition region between the chip guide adapter and the circular saw.

[0012] Coupling the circular saw to the guide rail is particularly simple if the mechanical interface is designed such that it can be coupled and disconnected in a direction perpendicular to the longitudinal extension of the guide rail. The user then has the option, for example, of coupling the circular saw to the guide rail via the mechanical interface once the guide rail has already been placed on the workpiece. Preferably, the mechanical interface can be coupled and / or disconnected in a direction perpendicular to the top side of the guide rail or in a direction that is essentially perpendicular to the top side of the guide rail. This further facilitates handling.

[0013] A preferred variant of the invention can be such that a channel closure arrangement with a band section is arranged in the housing of the chip guide adapter, wherein the chip guide adapter has a winding arrangement for winding the band section, preferably in the housing. The channel closure arrangement can be used to close the chip collection channel of the guide rail so that no or as little dust as possible escapes from it. When the circular saw is advanced in the feed direction, the band section unwinds from the winding arrangement and then simultaneously progressively closes the chip collection channel. It can be the case that when the circular saw is retracted after a saw cut has been made, the band section automatically winds itself back onto the winding arrangement. For example, a spring arrangement can be used here to roll up the band section.Preferably, it can be provided that the band section has a fastening section at its end leading out of the housing, on which a holding element for coupling to a suction connection fastening section is arranged. The suction connection fastening section can be assigned, preferably in a stationary manner, to the guide rail and / or the chip guide channel. The holding element can be detachably coupled to the suction connection fastening section, preferably, in particular without tools, so that when the circular saw is released from the guide rail, the band section can also be easily separated from the guide rail or the suction connection fastening section. For example, the holding element coupled to the suction connection fastening section can be uncoupled from the guide rail when the circular saw is lifted off.The user also has the choice of whether to discharge the resulting sawdust via the chip collection channel. This is then closed by the band section facing upwards, which is then connected to the suction connection mounting section with its retaining element. If the user does not want to use the chip collection channel, they can leave it open and the retaining element is not connected to the suction connection mounting section.

[0014] A saw assembly according to the invention can be designed such that the holding element has a locking receptacle, and that, when the band section is in a parked position, the holding element is held with the locking receptacle on a locking projection of the chip guide adapter, preferably of the housing. The holding element is easily accessible to the user when the band section is rolled up in the housing and not needed. Furthermore, the locking projection then also limits the winding movement of the winding assembly.

[0015] In order to reduce the number of parts required, it can be provided that the housing of the chip guide adapter delimits the chip guide channel of the chip guide adapter with a wall section. Additionally or alternatively, it can also be provided that the housing delimits the chip collection channel of the guide rail with a wall section in order to seal off the chip collection channel in the area of ​​the chip guide adapter. According to one variant of the invention, it can be provided that the chip guide channel has two guide sections arranged at a distance from one another, which delimit a chip passage area on opposite long sides extending in the longitudinal direction of the rail. When placed on the guide rail or on the chip collection channel, the guide sections form a guide with counter guide elements of the guide rail or the chip collection channel for the purpose of reliably sealing the chip guide adapter against the guide rail orthe chip collection channel.

[0016] If the chip guide adapter is designed to have a connecting section with at least one mounting bracket for interchangeable attachment of the chip guide adapter to the circular saw, then a user can optionally equip the circular saw with the chip guide adapter. This increases the flexibility and application possibilities of the circular saw.

[0017] A conceivable variant of the invention can be such that the chip guide adapter has at least one channel closure with a channel delimiting element, wherein the channel delimiting element is adjustable between a rest position and a functional position, wherein it is preferably provided that the channel delimiting element is aligned substantially transversely to the underside of the chip guide adapter in the functional position and / or protrudes in front of the underside of the chip guide adapter, wherein it is particularly advantageous that the channel delimiting element is aligned substantially parallel to the underside of the chip guide adapter in the rest position and / or does not protrude in front of the underside of the chip guide adapter. The underside of the chip guide adapter is the side of the chip guide adapter on which the chip guide adapter can be placed on a flat surface in the rest position.For example, the underside has the guide sections.

[0018] Preferably, it can be provided that the channel delimiting element is designed to delimit an area in or on the chip collection channel from the surroundings, preferably to delimit at least part of the cross-section of the chip collection channel from the surroundings, in a state in which the chip guide adapter is coupled to the guide rail. The channel delimiting element can be used to close off the chip collection channel in the area of ​​the chip guide adapter, in particular in the feed direction of the chip guide adapter and / or in a direction pointing from the holding element to the housing. Since the channel delimiting element is carried along when the circular saw moves in the sawing direction, this seal is maintained during the cutting process.

[0019] Preferably, it can be provided that the channel delimiting element is adjustable between a rest position and a functional position. In the functional position, the channel delimiting element at least partially delimits the chip collection channel as intended. Preferably, the channel delimiting element delimits a front cross-section of the chip collection channel arranged in the feed direction of the chip guide adapter and / or a cross-section of the chip collection channel arranged opposite the holding element. In the rest position, the channel delimiting element can, for example, be arranged such that it is protected from mechanical impact in order to avoid damage when the chip guide adapter is placed on a level surface or when the chip guide adapter is placed on the guide rail or the chip collection channel.In other words, the channel delimiting element can be arranged in the rest position such that the boundary surfaces or sealing surfaces of the channel delimiting element are arranged above the lower edge of the guide sections and / or the channel delimiting element is arranged between the guide sections.

[0020] Advantageously, it can be provided that the channel delimiting element is pivotally mounted on a counter-bearing piece by means of a bearing element, and that an actuating element is provided on the channel delimiting element in order to move the channel delimiting element from the rest position into the functional position. In this way, the adjustment of the actuating element can be effected simultaneously, preferably with the joining movement for coupling the mechanical interface. For example, it can be the case that during the joining movement the actuating element rests on a counterpart, for example on the guide rail, and is adjusted. For precise and secure adjustment of the actuating element, it can be provided that the actuating element is arranged eccentrically to a pivot axis formed by the bearing element and the counter-bearing piece.For example, the actuating element is arranged in a region of the channel delimiting element that is located laterally and / or above the sealing surfaces of the channel delimiting element.

[0021] If the channel limiting element is adjustable from its rest position toward the functional position against the preload of a spring, then the channel limiting element can be automatically and reliably adjusted to its rest position when not required. A compact mechanism is achieved if the channel limiting element has a suspension for the spring, and if the spring end facing away from the suspension is suspended from a spring holder arranged on the housing. To achieve the object of the invention, a guide rail for a circular saw, a drilling machine, or a milling machine, in particular for a router, is further proposed, wherein the guide rail has a support surface on its underside and a guide surface with a longitudinal guide element for guiding the circular saw, drilling machine, or milling machine during a machining movement on the opposite upper side of the rail.in particular the sawing movement, in the longitudinal direction of the rail, wherein the guide rail has a chip collection channel or a chip collection channel is assigned to the guide rail, which serves to remove chips from the processing machine, in particular the circular saw, drilling machine, or milling machine, during the sawing process and which extends in a groove-like manner in the longitudinal direction of the rail, wherein the chip collection channel has a channel bottom from which two side walls extend in the longitudinal direction of the rail, which are arranged at a distance from one another and which, with their inner walls, delimit an opening of the chip collection channel on the upper side of the rail. A chip guide adapter can be easily assigned to such a guide rail at any position in the direction of the longitudinal extension of the rail if it is provided that the side walls each form a support receptacle with a support surface at their end facing away from the channel bottom,wherein the support receptacle and / or the support surfaces each extend beyond the outer wall side in the direction facing away from the inner wall side. The chip guide adapter can then be placed on the support section(s), wherein the support surfaces can also be designed in such a way that, together with the chip guide adapter, they can form a seal for the chip collection channel. It can also be the case that the support surfaces form guide surfaces on which the chip guide adapter slides relative to the guide rail when the processing machine, in particular the circular saw, the drill, or the milling machine, is adjusted. Overall, the support receptacles and / or the support surfaces or the one support surface can form a transverse to the longitudinal extension of the rail, preferably without tools.form a detachable mechanical interface. Using this mechanical interface, the chip guide adapter can be attached to and / or detached from the guide rail at any position along its longitudinal extension.

[0022] Preferably, the side walls can be designed and arranged such that they define an undercut-free cross-section of the chip collection channel in a direction perpendicular to the top side of the rail and in the direction from the channel floor to the opening of the chip collection channel. This undercut-free cross-section can be used, for example, to move a channel closure of the chip guide adapter into or out of the chip collection channel at any desired position in the direction of the longitudinal extension of the guide rail. The channel closure can, for example, be designed as described in at least one of claims 10-14.

[0023] Sealing the upwardly open side of the chip collection channel is easily achieved if at least one of the support surfaces of the support receptacles has a guide projection on the area facing away from the inner side of the associated side wall. This projection runs in the longitudinal direction of the rail and protrudes beyond the support surface toward the top of the rail. When the chip guide adapter is mounted on the guide rail, a corresponding counter surface of the chip guide adapter can be guided past the guide projection, creating a type of labyrinth seal.

[0024] In this case, it can be provided in particular that the guide projection has a guide and / or sealing surface on its outer side facing away from the inner side of the side wall, which protrudes beyond the outer side of the side wall and which runs in the longitudinal direction of the rail.

[0025] A further independent invention therefore relates to a guide rail, wherein the guide rail has a support surface on its underside and a guide surface with a longitudinal guide element on the opposite upper side of the rail, wherein the guide rail has a chip collection channel (15) or the guide rail is assigned a chip collection channel which extends in a groove-like manner in the longitudinal direction of the rail, wherein the chip collection channel has a channel bottom from which two side walls extend in the longitudinal direction of the rail, which side walls are arranged at a distance from one another and which delimit an opening of the chip collection channel on the upper side of the rail with their inner walls, wherein the side walls each form a support receptacle with a support surface at their end facing away from the channel bottom, wherein the support surfaces extend beyond the outer wall side in the direction facing away from the inner wall side.

[0026] Preferably, the chip collection channel is designed as a channel open toward the top of the guide rail. Further preferably, the chip collection channel is arranged in the area between the fastening groove and the chip collection channel.

[0027] It is also an object of the invention to provide a chip guide adapter for a processing arrangement, in particular a saw arrangement of the type mentioned above. This object is achieved by a chip guide adapter for the fluidic connection of a processing machine, in particular a circular saw, to a chip collection channel, in particular connected or connectable to a guide rail, wherein the chip guide adapter has a hose connection and a chip passage area, which are fluidic connected to one another by means of a chip guide channel, wherein the chip guide adapter is designed to enable coupling or separation of the chip guide adapter from the guide rail or the chip collection channel in a direction transverse, in particular perpendicular, to the longitudinal extent of the guide rail.

[0028] According to the invention, it can be provided that the chip guide adapter has a housing, wherein a channel closure arrangement with a band section is arranged on the housing of the chip guide adapter, and wherein the chip guide adapter has a winding arrangement for winding the band section, preferably in the housing.

[0029] It is preferred if the band section has a fastening section at its end leading out of the housing, on which a holding element is arranged.

[0030] It is preferred if the holding element has a fixing receptacle, wherein in a parking position of the band section that is maximally retracted into the housing, the holding element with the fixing receptacle is fixed to a fixing projection of the

[0031] chip guide adapter, preferably the housing.

[0032] It is preferred if the housing with a wall section

[0033] Chip guide channel is limited relative to a receiving space arranged in the housing, wherein it is preferably provided that the winding arrangement is accommodated in the receiving space.

[0034] It is preferred if the chip guide adapter, in particular the chip guide channel, has two guide sections arranged at a distance from one another, which delimit the chip passage area on opposite longitudinal sides extending in a longitudinal direction of the chip guide adapter.

[0035] It is preferred if the chip guide adapter has a connecting section with at least one fastening receptacle for the replaceable fastening of the chip guide adapter to the processing machine, in particular the circular saw.

[0036] It is preferred if the chip guide adapter has at least one channel closure with a channel delimiting element, wherein the channel delimiting element is adjustable between a rest position and a functional position, wherein it is preferably provided that the channel delimiting element is aligned substantially transversely to the underside of the chip guide adapter in the functional position and / or protrudes in front of an underside of the chip guide adapter, wherein it is particularly advantageous that the channel delimiting element is aligned substantially parallel to the underside of the chip guide adapter and / or the lower edge of the guide sections in the rest position and / or does not protrude in front of the underside of the chip guide adapter and / or is arranged above the lower edge of the guide sections and / or the channel delimiting element is arranged between the guide sections.

[0037] It is preferred if the channel limiting element is pivotally mounted on a counter-bearing piece by means of a bearing element, and that an actuating element is provided on the channel limiting element in order to move the channel limiting element from the rest position into the functional position, wherein it is preferably provided that the actuating element is arranged eccentrically to a pivot axis formed by the bearing element and the counter-bearing piece.

[0038] It is preferred if the channel limiting element is adjustable from its rest position towards the functional position against the pretension of a spring, wherein it is preferably provided that the channel limiting element has a suspension for the spring and that the spring end facing away from the suspension is suspended from a spring holder (76) arranged on the housing.

[0039] The object of the invention is also achieved with a sawing system having a guide rail according to one of claims 14 to 18 and a sawing arrangement according to one of claims 1 to 13. In this case, it can be provided in particular that the chip guide adapter is placed on the guide rail and is assigned to the chip collecting channel in such a way that a chip-conducting connection is formed from the chip guide channel via a chip passage area of ​​the chip guide adapter into the chip collecting channel, so that reliable chip removal into the chip collecting channel is possible.

[0040] In this case, it can be provided in particular that in the position in which the chip guide adapter is placed on the guide rail, the channel limiting element is inserted into the chip collection channel, and the channel limiting element covers the cross section of the chip collection channel at least for the most part.

[0041] Preferably, a suction port with a fastening section can also be mounted on a longitudinal end of the guide rail. This suction port can, in particular, be assigned to the end of the chip collection channel. A suction device can be coupled to the chip collection channel via the suction port to extract the chips generated during the sawing process. Preferably, the suction port can be removed from the guide rail. The user can then adapt the guide rail with the suction port accordingly if they wish to use this function.

[0042] In the above statements, reference was made to a sawing arrangement with a circular saw. However, all of the above statements also apply analogously to a drilling arrangement with a drill or to a milling arrangement with a milling machine, in particular with a router. The invention is explained in more detail below with reference to an exemplary embodiment illustrated in the drawings. They show:

[0043] Figure 1 in perspective front view a sawing system consisting of a circular saw, a chip guide adapter and a guide rail,

[0044] Figure 2 shows the sawing system according to Figure 1 in a perspective view from behind,

[0045] Figure 3 is a perspective exploded view of the sawing system according to Figures 1 and 2,

[0046] Figure 4 shows a chip guide adapter in a perspective exploded view,

[0047] Figure 5 shows the chip guide adapter according to Figure 4 in assembly coupled with a suction connection,

[0048] Figure 6 shows a combination of the guide rail shown in Figures 1-3 with the chip guide adapter according to Figures 4 and 5,

[0049] Figure 7 shows the unit according to Figure 6 in side view and along the section marked VIII-VIII in Figure 8,

[0050] Figure 8 shows the unit according to Figures 6 and 7 in plan view,

[0051] Figure 9 the profile of the guide rail,

[0052] Figures 10a to 12b show various functional representations of the unit according to Figures 6 and 7 in section,

[0053] Figure 13 is an enlarged sectional view of the chip collection channel and the chip guide adapter when placed on the chip collection channel,

[0054] Figures 14a to 15b show various detailed views of the chip guide adapter, Figure 16 shows a guide rail with a chip collection channel that can be releasably attached to it,

[0055] Figures 17a and 17b show a guide rail with a chip collection channel detachably attached thereto according to a further variant,

[0056] Figure 18a shows a saw arrangement in which the chip guide adapter and the circular saw form an assembly, as well as a guide rail with an integrally formed chip guide adapter,

[0057] Figure 18b shows a further saw arrangement, in which the chip guide adapter and circular saw form an assembly, and the guide rail and chip guide adapter are designed separately,

[0058] Figure 19 shows an embodiment of a sawing system, wherein the chip guide adapter forms an assembly with the guide rail,

[0059] Figure 20 shows a further embodiment of a sawing system, wherein the chip guide adapter forms an assembly with the chip guide channel,

[0060] Figure 21 shows a further embodiment of a sawing system, wherein a division of the chip guide adapter is provided and

[0061] Figure 22 shows two further embodiments of the invention.

[0062] Figure 1 shows a sawing system comprising a circular saw 30, a chip guide adapter 50, and a guide rail 10. The guide rail 10 has an upper guide surface 11 onto which the hand-held circular saw 30 can be placed. The design of the guide rail 10 can be seen in more detail in Figures 3 and 9. As Figure 9 shows in particular, the guide rail 10 has a lower support surface 12 opposite the guide surface 11. With this support surface 12, the guide rail 10 can be placed on a workpiece to be machined (not shown). The guide rail 10 is equipped on its upper side with a longitudinal guide element 13. The longitudinal guide element 13 projects beyond the support surface 12 and runs in the direction of the longitudinal extent of the guide rail 10.

[0063] Parallel and spaced apart from the longitudinal guide element 13, the guide rail 10 has a fastening groove 14. The fastening groove 14 also runs in the direction of the longitudinal extension of the guide rail 10. As can be seen in Figure 9, the fastening groove 14 is designed as an undercut groove. The circular saw 30 has a longitudinal guide groove 32.1, which cooperates with the longitudinal guide element 13 to provide guidance for the circular saw 30. By means of this guide, the circular saw 30 can be guided and displaced in the direction of the longitudinal extension of the guide rail 10. Aids, for example, clamping elements 82, can be attached to the fastening groove 14.

[0064] Figure 9 shows that the guide rail 10 has a chip collection channel 15. This chip collection channel 15 can be formed integrally with the guide rail 10. It is also conceivable that the chip collection channel 15—as shown in Figures 16 and 17a,b—is formed by a separate component that can be detachably connected to the guide rail 10.

[0065] Figure 16 shows a variant in which the chip collection channel 15 is connected to the guide rail 10 by means of a hook-and-loop connection 81. For this purpose, the guide rail 10 has, for example, a loop-type strip 81.1 glued to the side of the fastening groove 14, and the chip collection channel 15 has a hook-and-loop strip 81.2 glued to a side wall 17 of the chip collection channel 15. Figure 17 shows a further variant in which the chip collection channel 15 is connected to the guide rail 10 by means of clamping elements 82 inserted into the fastening groove 14.

[0066] Preferably, the chip collection channel 15 is designed as a channel open towards the top of the guide rail 10, as shown in Figure 9. More preferably, the chip collection channel 15 is arranged in the region between the fastening groove 14 and the chip collection channel 15. The chip collection channel 15 runs in the direction of the longitudinal extent of the guide rail 10. Preferably, the chip collection channel 15 extends over the entire longitudinal extent of the guide rail 10. However, it is also conceivable for the chip collection channel 15 to extend only over a partial area of ​​the guide rail 10. In particular, it is conceivable for the chip collection channel 15 to end at least at one of its longitudinal ends, set back from the end of the guide rail 10.

[0067] The chip collection channel 15 can be designed such that it has two spaced-apart side walls 17 that protrude at least partially beyond the support surface 12. Preferably, the side walls 17 are arranged parallel to one another, but the side walls 17 can also be arranged at a V-shaped angle to one another, with the V-shaped geometry opening toward the top of the guide rail 10. The two side walls 17 can be connected to one another by a channel base 16.

[0068] The chip collection channel 15 is designed in cross-section such that it is designed without an undercut in the direction of the upper side of the guide rail 10, as shown in Figure 9. In its area facing away from the channel bottom 16, the chip collection channel 15 has an opening 15.1, which is preferably formed continuously in the direction of the longitudinal extent of the guide rail 10.

[0069] It may be that the chip collection channel 15 is located on at least one of the side walls

[0070] 17 has a support receptacle 18. In the present embodiment, both side walls 17 are each equipped with a support receptacle 18. The support receptacles

[0071] 18 form a support surface 18.1, wherein the support surfaces 18.1 of the side walls 17 are preferably aligned with one another.

[0072] Furthermore, the support receptacle 18 may have a guide projection 19. This may extend in a rib-like manner in the direction of the longitudinal extent of the guide rail 10. As Figure 9 shows, an angular shoulder may be formed between the support surface 18.1 and the guide projection 19. Figure 9 further illustrates that a sealing surface 19.1 may be formed in the region of the support receptacle 18 or the side wall 17. In the present exemplary embodiment, the sealing surface 19.1 is formed by the outer side of the guide projection 19. However, the sealing surface 19.1 may also be formed at a different location.

[0073] As shown in Figure 8, a suction port 20 can be connected or be connected to the guide rail 10. The suction port 20 can be formed by a separate component that can be connected to the guide rail 10.

[0074] Preferably, the suction connection 20 is designed such that it can be arranged, in particular fastened, at a longitudinal end of the guide rail 10. It is preferred that the suction connection 20 can be optionally mounted, depending on the user's wishes, on one of the two longitudinal ends of the guide rail 10. Figure 7 illustrates that, for the purpose of fastening the suction connection 20, it can have a slot 24 with which it is pushed onto the channel floor 16 at its end. For example, the suction connection 20 can be detachably connected to the guide rail 10, in particular to the fastening groove 14, by means of clamping elements 82, as shown in Figure 17b.

[0075] The suction port 20 has a suction port attachment portion 22 connected to the chip collection channel 15. This is shown in more detail in Figure 7. The illustration further illustrates that the suction port 20 has a nozzle 21 to which a suction device, for example, a hose of a suction device (not shown), can be connected.

[0076] The nozzle 21 forms a passage that is spatially connected to the area surrounded by the chip collection channel 15 to enable the extraction of chips guided in the chip collection channel 15. As shown in Figure 7, the suction connection 20, in particular the suction connection fastening section 22, may have a holder 23. The holder 23 serves to releasably couple a holding element 62 of a chip guide adapter 50 to the suction connection fastening section 22, as will be explained in more detail later.

[0077] The circular saw 30 can be designed as a hand-held circular saw, as illustrated in Figures 1 and 2. The circular saw 30 has a drive unit 31 with which a saw blade (not shown) can be driven in the usual manner. The saw blade is housed in a saw blade holder 33, which is surrounded by a dust discharge duct 34, through which the sawdust removed during a saw cut can be discharged to a connection piece 36.1.

[0078] Figure 1 further illustrates that the circular saw 30 has a guide unit 32, by means of which the circular saw 30 can be placed on the guide rail 10 in order to guide the circular saw 30 along the guide rail 10 in the longitudinal direction. The circular saw 30 has, in the usual way, a handle unit 37 with a switch 37.1 via which the drive unit 31 can be activated. The handle unit 37 forms a main handle 37.2 and, in front of the main handle 37.2 in the feed direction, a guide handle 37.3. The circular saw 30 can be safely guided and moved along the guide rail 10 using the main handle 37.2 and the guide handle 37.3.

[0079] As Figures 1 and 2 show, the circular saw 30 has an angle adjustment 38. By means of this angle adjustment 38, the drive unit 31 together with the saw blade can be pivoted at an angle to the guide unit 32 in order to realize miter cuts.

[0080] A hose 35 can be connected, preferably detachably, in the area of ​​the connecting piece 36.1. The hose 35 leads at its end to a hose connection 52 of the chip guide adapter 50. The hose 35 thus forms a spatial connection between the dust discharge 34 of the circular saw 30 and a housing 41 of the chip guide adapter 50. The chip guide adapter 50 is explained in more detail below. The design of the chip guide adapter 50 is shown more clearly in Figures 4-6. As these illustrations illustrate, the chip guide adapter 50 has a chip guide channel 51. This chip guide channel 51 can be fluidically connected to the connecting piece 36.1. For example, as in the present case, the connection can be made via the hose 35.

[0081] In the variants according to the invention according to Figures 19 to 21, the chip guide adapter 50 comprises the hose 35.

[0082] In the variant according to Figures 19 and 20, the saw assembly comprises a separable mechanical interface in the form of the connecting piece 36.1 assigned to the circular saw 30 and a connecting sleeve 36.2 assigned to the chip guide adapter 50. Thus, the saw assembly comprises a separable mechanical interface designed to enable tool-free separation of the circular saw 30 from the chip guide adapter 50 by coupling the connecting piece 36.1 to or separating it from the connecting sleeve 36.2. The coupling between the connecting piece 36.1 and the connecting sleeve 36.2 can be achieved, for example, by means of a bayonet connection.

[0083] In the variant according to Figure 21, the chip guide adapter 50 comprises a first chip guide adapter part 50.1 and a second chip guide adapter part 50.2, which can be detachably connected to one another. In the present case, the first chip guide adapter part 50.1 has the housing 41, the hose connection 52, and the connection sleeve 36.2, and the second chip guide adapter part 50.2 has the hose 35 and the connection piece 36.1, wherein the connection piece 36.1 is designed to be coupled to or separated from the connection sleeve 36.2. Thus, the saw assembly has a separable mechanical interface designed to enable the chip guide adapter 50 to be separated.

[0084] Figure 7 illustrates that the chip guide channel 51 of the housing 41 has a chip passage area 53, which, when the chip guide adapter 50 is mounted on the chip collection channel 15, leads to the chip collection channel 15 of the guide rail 10 to create a spatial connection. Thus, the sawdust generated during machining can be guided from the saw blade holder 33 into the chip collection channel 15.

[0085] As shown in Figure 7, the chip guide adapter 50 may have a winding assembly 40 housed in the housing 41. The winding assembly 40 serves to wind a band section 64 of a channel closure assembly 60 in the housing 41.

[0086] As Figure 5 illustrates, the band section 64 is guided out of the housing 41 through a passage 42, so that the band section 64 can be pulled out of the housing 41 and unwound in the housing 41. Preferably, the band section 64 can be unwound by means of the winding arrangement 40 against the spring preload of a band section preload spring. If the band section 64 is relieved of load, the winding arrangement 40 rewinds it into the housing 41 under the action of this band section preload spring.

[0087] The band section 64 has a fastening section 65 at its end extending from the housing 41, on which a holding element 62 is arranged. The holding element 62 can have a handle 63. The band section 64 can be gripped at the end by the handle 63 and pulled out of the housing 41. This holding element 62 is designed to be releasably coupled to the holder 23 of the suction connection 20, as illustrated in Figure 5.

[0088] In order to position the holding element 62 easily and securely on the housing 41 when the band section 64 is fully wrapped, the holding element 62 may be provided with a fixing receptacle 61. This fixing receptacle 61 is designed to receive a fixing projection 45 of the housing 41, as illustrated in Figure 4.

[0089] As shown in Figures 4 and 5, the housing 41 has a receiving area that accommodates the band section 64 and preferably also the winding arrangement 40. This receiving area is separated from the chip guide channel 51 by a wall section 41.1, as illustrated in Figure 4.

[0090] For maintenance and / or assembly of the winding assembly 40, the housing 41 may be closed with a removable cover 43 (see Figure 4). The cover may, for example, be screwed or bolted to the housing 41.

[0091] Figure 6 shows that the chip guide adapter 50 can be detachably connected to the circular saw 30 by means of a connecting section 44. For this purpose, the connecting section 44 has a fastening receptacle 44.1 by means of which it is coupled, preferably at the rear, to the hand-held circular saw 30 (see Figures 1 to 3).

[0092] Figure 7 shows the cutting path shown in Figure 8 at VII-VII. The chip guide adapter 50 is mounted on the guide rail 10 or the chip collection channel 15. The chip guide adapter 50 assumes this position when the circular saw 30 is mounted on the guide rail 10. For clarity, the circular saw 30 is not shown in Figures 7 and 8.

[0093] Figure 7 shows that a channel closure 70 can be assigned to the chip guide adapter 50. The channel closure 70 is arranged and designed to limit or cover the free cross-section of the chip collection channel 15 forward in the feed direction. As Figures 10a to 12b show, the channel closure 70 has a channel limiting element 71 which, when the chip guide adapter 50 is placed on the chip collection channel 15, projects into the chip collection channel 15. The channel limiting element 71 is arranged and designed such that it at least partially covers the area of ​​the chip collection channel 15 that is delimited by the two side walls 17 and the channel base 16. In this way, the sawdust fed via the chip guide channel 51 is prevented from escaping from the chip collection channel 15 forward in the feed direction into the environment.Preferably, the channel limiting element 71 has a bearing element 72, by means of which the channel limiting element 71 is pivotally attached to a counter-bearing piece 46 of the housing 41. The pivot axis runs perpendicular to the image plane in Figure 7. The channel limiting element 71 is preferably equipped with a suspension 73 to which a spring 74 is coupled. The opposite spring end 75 is attached to a spring holder 76 of the housing 41. The channel limiting element 71 is held spring-biased by the spring 74. To limit the pivoting movement, a stop 77 is provided, against which the channel limiting element 71 strikes in its pivoted-in rest position, as shown in Figure 10b.

[0094] The channel-delimiting element 71 can preferably be associated with an actuating element 78, which is illustrated in Figures 14a to 15b. These illustrations also show that the actuating element 78 is arranged eccentrically to the pivot axis S about which the channel-delimiting element 71 is pivoted.

[0095] When the actuating element 78 rests against the side wall 17 of the chip collection channel 15 when the chip guide adapter 50 is placed in place (see Figure 14a), the force acting on the channel limiting element 71 by the actuating element 78 pivots the channel limiting element 71 into the chip collection channel 15 against the preload of the spring 74. Figure 14b shows the channel limiting element 71 in its functional position. If the chip guide adapter 50 is lifted off the guide rail 10 again, thus reducing the force acting on the channel limiting element 71 by the actuating element 78, the spring 74 pulls the channel limiting element 71 back into its rest position. In the rest position, the channel limiting element 71 rests against the stop 77.

[0096] In Figures 1 and 2, the circular saw 30 is mounted on the guide rail 10 with the chip guide adapter 50, with the band section 64 being fastened to the holder 23 of the suction connection 20 with the holding element 62, and the channel limiting element 71 extending into the chip collection channel 15. If a saw cut is now made in a workpiece, the hand-held circular saw 30 can be guided from right to left on the guide rail 10 in Figure 2. The sawdust generated during the saw cut is guided via the dust discharge 34 to the chip guide adapter 50. Here, the sawdust is guided through the chip guide channel 51 and through the chip passage area 53 into the chip collection channel 15.Since the chip collection channel 15 is now closed on the front side with the channel limiting element 71 and on the top side with the band section 64, the sawdust can be effectively sucked out of the chip collection channel 15 via the suction connection 20, for example by means of a vacuum cleaner connected to the suction connection 20.

[0097] After the saw cut is completed, the circular saw 30 is moved back to its starting position. The winding assembly 40 winds up the band section 65 within the housing 41.

[0098] The circular saw 30 can be placed on the guide rail 10 in any position in the direction of the longitudinal extension of the guide rail 10.

[0099] In particular, the chip guide adapter 50 does not have to be laboriously threaded over the longitudinal end of the chip collection channel 15, but it can also be placed on the guide rail 10 as intended at any position in the direction of the longitudinal extension of the guide rail 10.

[0100] In the above explanations, reference was made to a sawing arrangement with a circular saw 30. However, the explanations also apply analogously to a drilling arrangement 80 with a drilling machine 81 or to a milling arrangement 90 with a milling machine, in particular with a router 91, as shown in Figure 22.

[0101] In Figure 22, identical components are again provided with identical reference numerals. The structure of the guide rail 10 corresponds to the structure of the guide rail 10 described above. The structure of the chip guide adapter 50 also corresponds to the structure of the chip guide adapter 50 described above. To avoid repetition, reference is therefore made to the above explanations. The chip guide adapter 50 can again be coupled via the hose 35 with the connecting piece 36.2 either to the router 91 or the drill 81 to effect chip removal.

[0102] The router 91 or the drilling machine 81 can be coupled to the guide rail 10 in a suitable manner, just as the circular saw 30 described above can be coupled to the guide rail 10 in order to guide these machines in the longitudinal direction of the guide rail 15.

[0103] During the machining process, the dust from the router 91 or the drill 81 is fed to the chip guide adapter 50 via the hose 35. The dust is guided into the chip collection channel 15 via the chip guide adapter 50 so that it can be removed via the suction connection 20.

[0104] Thus, Figure 22 shows a variant of the invention with a machining arrangement with a machining machine, for example a drilling machine 81 or a milling machine, in particular a router 91, for guidance on a guide rail 10, wherein the guide rail 10 serves for linear guidance of the machining machine 30 in a rail longitudinal direction, wherein the machining machine 30 has a tool holder with a dust discharge 34, wherein a chip guide adapter 50 is provided which has a housing 41 with a chip guide channel 51, wherein the chip guide channel 51 forms a connection between the dust discharge 34 and a chip collection channel 15 assigned or assignable to the guide rail 10, wherein the machining arrangement has a separable mechanical interface, and wherein the mechanical interface is designed,

[0105] - to enable separation of the chip guide adapter 50 from the guide rail 10 or the chip collection channel 15 in a direction transverse, in particular perpendicular, to the longitudinal extension of the guide rail 10 or

[0106] - to enable separation of the processing machine from the chip guide adapter 50 or division of the chip guide adapter 50. With such a processing arrangement, the measures according to claims 2-13 can also be implemented, in which case, in these claims, the term "saw arrangement" is to be replaced by the term "processing arrangement," the term "circular saw" is to be replaced by the term "processing machine," and generally the term "-saw-" is to be replaced by the term "-processing-."

[0107] The same applies to claims 20-22.

Claims

Claims 1. Saw arrangement with a circular saw (30) for guidance on a guide rail (10), wherein the guide rail (10) serves for linear guidance of the circular saw (30) in a longitudinal direction of the rail, wherein the circular saw (30) has a saw blade holder (33) with a dust discharge (34), wherein a chip guide adapter (50) is provided which has a housing (41) with a chip guide channel (51), wherein the chip guide channel (51) forms a connection between the dust discharge (34) and a chip collection channel (15) assigned or assignable to the guide rail (10), wherein the saw arrangement has a separable mechanical interface, and wherein the mechanical interface is designed, - to enable separation of the chip guide adapter (50) from the guide rail (10) or the chip collection channel (15) in a direction transverse, in particular perpendicular, to the longitudinal extent of the guide rail (10) or - to enable separation of the circular saw (30) from the chip guide adapter (50) or division of the chip guide adapter (50).

2. Saw arrangement according to claim 1, characterized in that the chip guide adapter (50) forms an assembly with the circular saw (30) and that the mechanical interface is formed in the transition region between the chip guide adapter (50) and the guide rail (10) or in the transition region between the chip guide adapter (50) and the chip collecting channel (15), or that the chip collecting channel (15) and / or the guide rail (10) forms an assembly with the chip guide adapter (50) and that the mechanical interface is formed in the transition region between the chip guide adapter (50) and the circular saw (30).

3. Saw assembly according to claim 1 or 2, characterized in that the mechanical interface is such that the saw assembly can be coupled and separated from the guide rail (10) and / or the chip collection channel (15) in a direction transverse to the longitudinal extension of the guide rail (10), wherein it is preferably provided that the chip guide adapter (50) can be placed on the guide rail (10) or the chip collection channel (15) in a placing movement in a direction transverse to the longitudinal direction of the guide rail (10) or that the chip guide adapter (50) can be separated from the guide rail (10) or the chip collection channel (15) in a lifting movement in a direction transverse to the longitudinal direction of the guide rail (10).

4. Saw arrangement according to one of claims 1 to 3, characterized in that a channel closure arrangement (60) with a band section (64) is arranged on the housing (41) of the chip guide adapter (50), and wherein the chip guide adapter (50) has a winding arrangement (40) for winding the band section (64), preferably in the housing (41).

5. Saw arrangement according to claim 4, characterized in that the band section (64) has, at its end leading out of the housing (41), a fastening section (65) on which a holding element (62) is arranged.

6. Saw arrangement according to claim 5, characterized in that the holding element (62) has a fixing receptacle (61), and that in a parking position of the band section (64) in which it is maximally retracted into the housing (41), the holding element (62) with the fixing receptacle (61) is held on a fixing projection (45) of the chip guide adapter (50), preferably of the housing (41).

7. Saw arrangement according to one of claims 1 to 6, characterized in that the housing (41) delimits the chip guide channel (51) with a wall section (41.1) with respect to a receiving space of the housing (41), wherein it is preferably provided that the winding arrangement (40) is received in the receiving space.

8. Saw arrangement according to one of claims 1 to 7, characterized in that the chip guide channel (51) has two guide sections (54) arranged at a distance from one another, which have a chip passage area (53) on opposite longitudinal sides extending in the longitudinal direction of the rail.

9. Saw arrangement according to one of claims 1 to 8, characterized in that the chip guide adapter (50) has a connecting section (44) with at least one fastening receptacle (44.1) for the replaceable fastening of the chip guide adapter (50) to the circular saw (30).

10. Saw arrangement according to one of claims 1 to 9, characterized in that the chip guide adapter (50) has at least one channel closure (70) with a channel delimiting element (71), wherein the channel delimiting element (71) is adjustable between a rest position and a functional position, wherein it is preferably provided that the channel delimiting element (71) is aligned in the functional position substantially transversely to the underside of the chip guide adapter (50) and / or protrudes in front of the underside of the chip guide adapter (50), wherein it is particularly advantageous that the channel delimiting element (71) is aligned in the rest position substantially parallel to the chip guide adapter (50) and / or does not protrude in front of the underside of the chip guide adapter (50) and / or is arranged above the lower edge of the guide sections and / or the channel delimiting element is arranged between the guide sections.

11. Saw arrangement according to claim 10, characterized in that the channel delimiting element (71) is designed to delimit an area in or on the chip collecting channel (15) from the environment, preferably to delimit at least part of the cross section of the chip collecting channel (15) from the environment, in a state in which the chip guide adapter (50) is coupled to the guide rail (10).

12. Saw arrangement according to one of claims 10 or 11, characterized in that the channel limiting element (71) is pivotally mounted on a counter-bearing piece (46) by means of a bearing element (72), and that an actuating element (78) is provided on the channel limiting element (71), to move the channel limiting element (71) from the rest position into the functional position, wherein it is preferably provided that the actuating element (78) is arranged eccentrically to a pivot axis formed by the bearing element (72) and the counter-bearing piece (46).

13. Saw arrangement according to one of claims 10 to 12, characterized in that the channel limiting element (71) is adjustable from its rest position towards the functional position against the pretension of a spring (74), wherein it is preferably provided that the channel limiting element (71) has a suspension (73) for the spring (74), and that the spring end (75) facing away from the suspension (73) is suspended from a spring holder (76) arranged on the housing (41).

14. Guide rail (10) for a processing machine, in particular for a circular saw (30), a drilling machine or a milling machine, in particular for a router, wherein the guide rail (10) forms a support surface (12) on its underside and a guide surface (11) with a longitudinal guide element (13) on the opposite upper side of the rail for guiding the processing machine during a processing movement, in particular the sawing movement, in the longitudinal direction of the rail, wherein the guide rail (10) has a chip collecting channel (15) or the guide rail (10) is assigned a chip collecting channel (15), which serves to remove chips from the processing machine, in particular the circular saw (30), the drilling machine or the milling machine, during the cutting, in particular the sawing, process and which extends in a groove-like manner in the longitudinal direction of the rail, wherein the chip collecting channel (15) has a channel bottom (16),from which two side walls (17) extend in the longitudinal direction of the rail, which are arranged at a distance from one another and which, on the upper side of the rail, delimit with their inner walls an opening (15.1) of the chip collection channel (15), characterized in that the side walls (17) each form a support receptacle (18) with a support surface (18.1) at their end facing away from the channel bottom (16), wherein the support surfaces (18.1) extend beyond the outer side of the wall in the direction facing away from the inner side of the wall.

15. Guide rail according to claim 14, characterized in that the side walls (17) are designed and arranged such that they delimit an undercut-free cross-section of the chip collection channel (15) in a direction perpendicular to the top side of the rail and in the direction from the channel bottom (16) towards the opening of the chip collection channel (15).

16. Guide rail according to claim 14 or 15, characterized in that at least one of the support surfaces (18.1) of the support receptacles (18) has, in its region facing away from the inner wall of the associated side wall (17), a guide projection (19) which runs in the longitudinal direction of the rail and which projects beyond the support surface (18.1) in the direction of the upper side of the rail.

17. Guide rail according to claim 16, characterized in that the guide projection (19) has on its outer side facing away from the inner side of the side wall (17) a guide and / or sealing surface (19.1) which projects beyond the outer side of the side wall (17) and which runs in the longitudinal direction of the rail.

18. Guide rail according to one of claims 14 to 17, characterized in that the longitudinal guide element (13) is designed in the form of a longitudinal rib projecting in the direction of the upper side of the rail, and that the longitudinal rib preferably forms a groove open towards the underside of the guide rail.

19. Guide rail according to one of claims 14 to 18, characterized in that a suction connection (20) with a fastening section (22) is mounted on a longitudinal end of the guide rail (10).

20. Sawing system with a guide rail according to one of claims 14 to 19 and a sawing arrangement according to one of claims 1 to 13, characterized in that the chip guide adapter (50) is placed on the guide rail (10) and is assigned to the chip collecting channel (15) in such a way that a chip-conducting connection from the chip guide channel (51) via a chip passage area (53) of the chip guide adapter (50) into the chip collection channel (15).

21. Sawing system according to claim 20, characterized in that in the position in which the chip guide adapter (50) is placed on the guide rail (10), the channel limiting element (71) is inserted into the chip collecting channel (15) and the channel limiting element (71) covers the cross section of the chip collecting channel (15) at least for the most part.

22. Sawing system according to claim 21, characterized in that the suction connection (20) has a holder (23) for releasably fastening the locking element (62) of the channel closure arrangement (60).

Images