Linear motion system with protected energy guide

Abstract

The invention relates to a linear motion system (30) for use in a Cartesian motion system, wherein the linear motion system (30) has a housing (32) which extends along a linear axis (31), wherein a slide is supported at the housing (32) in such a way that it can move linearly in the direction of the axis (31), wherein the linear motion system (30) is equipped with an energy guide chain (50) which can move along the mentioned axis. According to the invention, the energy guide chain (50) is completely accommodated in a cavity formed by the housing (32), wherein the cavity has at least one first opening through which the associated energy line is guided, wherein the cavity has a second opening which is elongated in the direction of the axis, wherein the energy line, from the associated first opening, further extends through the energy guide chain and continues through the second opening to the slide.

Description

TECHNICAL FIELD

[0001] The invention relates to a linear motion system according to the preamble of claim 1 and to a Cartesian motion system with at least one such linear motion system. BACKGROUND

[0002] A Cartesian motion system is known from the directory accessible under the address http: / / www.boschrexroth.com / various / utilities / mediadirectory / download / index.jsp object_nr=R999000044 on October 25, 2019. This Cartesian motion system is assembled from a plurality of linear motion systems whose linear axes are typically arranged perpendicular to one another, so that they span a Cartesian coordinate system. The drives of the individual linear motion systems are often connected to electrical energy lines guided in an energy guide chain. The motion system can be designed with a storage slot for the energy guide chain.

[0003] Furthermore, the most diverse guiding mechanisms for energy guide chains are known from the directory accessible under the address https: / / tsubaki-kabelschlepp.com / uploads / tx_tkg17pim / documents / pdf / Ablegerinnen-und-Fuehrungskanaele_DE.pdf on October 25, 2019. SUMMARY

[0004] The invention has the advantage that the individual linear motion systems of a Cartesian motion system can be installed next to one another as a whole including the energy guide chain. They can thus be pre-produced by the manufacturer as completely as possible, wherein the user only has to carry out very few work steps to build up a single Cartesian motion system from a plurality of linear motion systems. It is no longer necessary for the user to install the energy guide chain individually at the motion system. Furthermore, the often supportlessly arranged housing is thus reinforced, so that longer motion paths are possible. Furthermore, the energy guide chain is particularly well protected from environmental influences.

[0005] According to the independent claim proposal, the energy guide chain is completely accommodated in a cavity formed by the housing, wherein the cavity has at least one first opening through which the associated energy line is led through, wherein the cavity has a second opening which is elongated in the direction of the axis, wherein the energy line further continues through the second opening from the associated first opening through the energy guide chain to the slide.

[0006] The linear motion system preferably comprises a drive with which the slide can be driven relative to the housing in the direction of the axis. The drive can comprise a belt drive, in particular a toothed belt drive, or a spindle drive, in particular a ball screw drive. The drive can comprise an electric motor. The energy line can be, for example, an electrical or pneumatic line. The energy line can be designed for the transmission of a small amount of energy required for control purposes or for the transmission of a large amount of energy required for driving purposes. It is conceivable for a plug connection for the energy line to be arranged in the region of the second opening.

[0007] Advantageous refinements and improvements of the application are specified in the dependent claims.

[0008] It can be provided that the cavity is formed by a separate cavity housing which is fixed to the remaining housing in such a way that the bending stiffness of the entire housing is greater than the bending stiffness of the entire housing without the cavity housing. A greater unsupported length is thereby achieved when the linear motion system is mounted without support.

[0009] It can be provided that the cavity is essentially configured to be closed in addition to the respective at least one first opening and the respective second opening. The cavity is outwardly not completely sealed closed due to the second opening. In correspondence thereto, complete tightness is not important when assembling the parts thereof. The high bending stiffness of the housing should rather be achieved with the closed configuration.

[0010] It can be provided that the at least one first opening is essentially closed tightly. The energy line can be, for example, threaded through a cable entry strip (http: / / www.icotek.com / produktskatalog / kabeleinfuehrung / kel-24 / ) which forms the relevant first opening. The energy line in the first opening is preferably held frictionally, so that it cannot move as a result of the movement of the energy chain.

[0011] It can be provided that the cavity is delimited in sections by a first body which extends along the axis with a constant cross-sectional shape, wherein the respective second opening is arranged at the first body. The cavity can thereby be provided in a cost-advantageous manner, while at the same time the desired movement capability of the energy chain is given. The blank of the first body is preferably manufactured from aluminum in an extrusion process, wherein the second opening is manufactured by chip removal machining of the blank.

[0012] It can be provided that the housing comprises a second body which extends along the axis with a constant cross-sectional shape, wherein the cross-sectional shape is configured in the shape of a U with a base and two U limbs, wherein the first body and the second body are integrally configured or firmly connected to one another in the region of the base. The integrally configured variant is particularly advantageous in terms of costs when the number of parts is large. The variant composed of multiple parts is more advantageous in terms of costs when the number of parts is small, since the first body can be used for differently designed linear motion systems without having to change the first body for this purpose.

[0013] It can be provided that the cavities are delimited by first and second end caps, respectively, which are fixed at the ends of the first body which are opposite with respect to the axis, wherein all the first openings are arranged in the first end cap. The cable entry strip mentioned above is preferably an integral part of the first end cap.

[0014] It can be provided that the cross-sectional shape of the first body is configured in the shape of a rectangle, wherein the second openings are arranged at the narrower rectangular sides. A linear motion system which is particularly compact in terms of construction is thereby obtained.

[0015] It can be provided that the longer rectangular sides are arranged against or integrally with the base. A particularly firm connection between the first body and the second body is thereby produced, so that the entire housing has a high rigidity.

[0016] Furthermore, a Cartesian motion system with a first linear motion system and an auxiliary linear motion system is claimed, wherein the first linear motion system has a first axis, a first housing, a first slider, a first energy guide chain, a first cavity and at least one first energy line, wherein the first linear motion system is configured in accordance with any of the preceding claims, wherein the auxiliary linear motion system has an auxiliary housing which extends along a linear auxiliary axis, wherein an auxiliary slider is supported at the auxiliary housing in such a way that it can move linearly in the direction of the auxiliary axis, wherein the first housing or the first slider is fixed at the auxiliary slider in such a way that the auxiliary axis and the first axis are arranged at an angle different from zero. The angle between the auxiliary axis and the first axis is preferably 90°. The auxiliary housing is preferably arranged positionally fixed. The first linear motion system can comprise a first drive. The first energy line preferably leads from the associated first opening to the auxiliary slider. The auxiliary linear motion system is preferably not configured in accordance with the application, since the cavity for the associated auxiliary energy guide chain is too large.

[0017] A second linear motion system can be provided, which has a second axis, a second housing, a second slider, a second energy guide chain, a second cavity and at least one second energy line, wherein the second linear motion system is configured as claimed in any one of claims 1 to 9, wherein the second housing or the second slider is fixed at the first slider in such a way that the first axis and the second axis are arranged at an angle which is not equal to zero. The angle between the first axis and the second axis is preferably 90°. The second linear motion system can comprise a second drive. The second energy line is preferably guided from the associated first opening to the first slider.

[0018] Of course, the features described previously and which will be explained in the following can be used not only in the combinations indicated, but also in other combinations or alone, without leaving the scope of the present application. BRIEF DESCRIPTION OF DRAWINGS

[0019] The application is explained in more detail below with the help of the drawings. In the drawings:

[0020] Figure 1 is a perspective view of a Cartesian motion system according to the application;

[0021] Figure 2 is a perspective view of the first linear motion system from the respective second opening;

[0022] Figure 3 is another perspective view of the first linear motion system from the first opening without the respective first body;

[0023] Figure 4 is a perspective view of the second linear motion system without the respective first body;

[0024] Figure 5 shows a cross section of a second embodiment of the first linear motion system; and

[0025] Figure 6 shows a cross section of a third embodiment of the first linear motion system. DETAILED DESCRIPTION

[0026] Figure 1A perspective view of a Cartesian motion system 10 according to the application is shown. The Cartesian motion system 10 is assembled from an auxiliary motion system 20 and a first and a second linear motion system 30; 40. Corresponding linear motion systems without a cavity according to the application are known from DE 197 38 988 B4, EP 340 751 B2, DE 200 80 368 U1, EP 828 083 B1, EP 1 975 463 B1, DE 103 54 040 A1, DE 10 2008 026 770 A1, EP 2 218 926 B1 or US 2005 / 265639. The linear guide mechanisms of these linear motion systems typically comprise linear rolling bearings, which mostly have continuously encircling, spherical rolling bodies. The drives can be designed electrically, pneumatically, linearly driven, piezomechanically or in any other conceivable way.

[0027] The auxiliary linear motion system 20 has an auxiliary housing 22, which extends along a linear auxiliary axis 21. At its two opposite longitudinal ends, the auxiliary housing 22 is firmly connected with a base plate 92 by means of each one of a stand 91. An auxiliary slide 23 is supported at the auxiliary housing 22 in a manner linearly movable along the auxiliary axis 21. The auxiliary slide 23 is driven by an auxiliary drive 24 in the direction of the auxiliary axis 21, wherein the auxiliary drive 24 currently comprises an electric motor 25 and a toothed belt. Furthermore, an auxiliary energy guide chain 90 connects the base plate 92 with the auxiliary slide 23, wherein the auxiliary energy guide chain 90 is movable in the direction of the auxiliary axis 21. All energy supply lines and control lines required for the first and the second linear motion system 30; 40 and the clamps 93 are guided through the auxiliary energy guide chain 90. The auxiliary energy guide chain 90 is currently not accommodated in the cavity according to the application, because this cavity has to be designed extremely large due to the stands 91.

[0028] The first linear movement system 30 has a first housing 32 which extends along a linear first axis 31 which is oriented perpendicular to the auxiliary axis 21, so that the auxiliary axis 21 and the first axis 31 span a horizontal plane. The first housing 32 is fixed at the auxiliary slide 23. The fixing is preferably provided at the end region with respect to the first axis 31, so that the movement path of the first slide 33 can be utilized as well as possible. The fixing can be designed as a screw connection, it being possible for manual fixing means, such as a clamping lever, to be considered as well. The first slide 33 is supported at the first housing 32 in such a way that it can be moved in the direction of the first axis 31. The first slide 33 can be driven in the direction of the first axis 31 by means of a first drive 34. The first drive 34 comprises a ball screw drive in the present case, which is in rotational drive connection with a first electric motor 35 by means of a toothed belt. The first linear movement system 30 is provided with a first energy guide chain 50 which connects the auxiliary slide 21 and the first slide 31. The first energy guide chain 50 can be moved in the direction of the first axis 31, wherein it is accommodated in a separate cavity housing 70 which is an integral part of the first housing 31. All energy supply lines and control lines required for the second linear movement system 40 and the clamp 93 are guided through the first energy guide chain 50.

[0029] The second linear movement system 40 has a second housing 42 which extends along a linear second axis 41 which is oriented perpendicular to the auxiliary axis 21 and perpendicular to the first axis 31, so that it is arranged orthogonally. A second slide 43 is supported at the second housing 42 in such a way that it can be moved in the direction of the second axis 41, wherein the second slide is fixed at the first slide 33. The second slide 43 can be driven in the direction of the second axis 41 by means of a second drive 44, wherein the second drive 44 comprises a ball screw drive in the present case, which is in direct rotational drive connection with a second electric motor 45. A clamp 93 is fixed at the lower end of the second housing 42, which can be moved with respect to the Cartesian coordinate system spanned by the auxiliary axis 21 and the first and second axes 31; 41 by means of the auxiliary linear movement system 20 and the first and second linear movement systems 30; 40. Instead of the clamp 93, any other tool can be provided, preferably an automatically operable tool. The second housing 42 likewise comprises a separate cavity housing 71 in the present case, in which a second energy guide chain (numbered 60 in the drawing) is accommodated, which can be moved in the direction of the second axis 41. All energy supply lines and control lines required for the clamp 93 and the electric motor 45 are guided through the second energy guide chain 60. Figure 4

[0030] Figure 2 ​A perspective view of the first linear motion system 30 is shown from the respective second opening 54. The first housing 32 comprises a separate cavity housing 70 which is firmly connected with the remaining first housing 32. The cavity housing comprises a first body 81 which extends along the first axis 31 with a constant cross-sectional shape of a rectangle. The first body 81 is preferably manufactured from aluminum in an extrusion process. The second opening 53 which is elongated in the direction of the first axis 31 is machined into the blank of the first body 81 by means of chip removal machining, in particular milling. The second opening 53 extends from a first end cap 83 with constant width to the vicinity of a second end cap 84. The first and second end caps 83; 84 are preferably fixed at the ends of the first body 81 which are opposite in the direction of the first axis 31 by means of screws.

[0031] Furthermore, the first housing 32 comprises a second body 82 which likewise extends in the direction of the first axis 31 with a constant cross-sectional shape. The second body 82 encloses the linear guide mechanism of the first slider 33 and a portion of the first drive 34. The second body 82 is preferably manufactured from aluminum in an extrusion process. Of course, the first and second bodies 81; 82 are preferably configured integrally, wherein they are jointly manufactured in an extrusion process. When the integral solution is less economical due to the small number of parts or when the materials of the first and second bodies 81; 82 are different as in the second linear motion system, then the solution composed of two parts as shown in Figure 2 and 3 is used. But in all variants it is worth pursuing that the first and second bodies 81; 82 are firmly connected with each other in such a way that the respective connection structure has a bending stiffness which is higher than the sum of the bending stiffnesses of the two parts. The fixed connection is achieved in the present case by means of a total of four clamping strips 96 which are dovetailed into matching grooves in the second body 82, wherein the clamping strips are respectively screwed to the first body 81. Reference is made to Figure 5 for further variants which improve the bending stiffness. Reference is made to Figure 6 for the integral variant which is explained in the following.

[0032] The first body 81 as well as the first and second end caps 83; 84 define a first cavity 51 in which the first energy guide chain 50 is completely accommodated. The first cavity 51 is of closed construction apart from the first opening (numbered 53 in Figure 3 ) and the second opening 54, so that the first energy guide chain 50 is substantially inaccessible from the outside.

[0033] It is also pointed out that a first and a second plug connector 94; 95 is used for the first energy line, which is guided through the first energy chain 50. At present, it is designed as a purely electrical plug connector, since only a first electrical energy line is applied. The first motor 35 of the first drive 34 is connected to the first plug connector 94, for which the respective energy line does not have to be guided through the first energy chain 50. The first plug connector 94 is connected to the free end of the first energy line (number 52 in Figure 3 ) and can move accordingly, so that the first plug connector can be plugged into the third plug connector (number 99 in Figure 1 ), which is firmly arranged at the auxiliary slide (number 23 in Figure 1 ). The second plug connector 95 is, for example, firmly connected with the first slide 33 at a connecting body 103, which is designed as a sheet metal bending in the present case. There, a fourth plug connector (number 100 in Figure 3 ) of a third linear movement system is plugged in.

[0034] Figure 3 Another perspective view of the first linear movement system 30 is shown from the first opening 53 without the respective first body (number 81 in Figure 2 ). It can be seen that the first energy chain 50 is arranged within the first cavity (number 51 in Figure 2 ). The first energy chain 50 is bent in a U-shape in a plane spanned by the first axis 31 and the second axis (number 41 in Figure 1 ), wherein the respective U-shape legs are arranged parallel to the first axis 31. One end of the first energy chain 50 is fixed, in particular screwed, at the inner side of the first body (number 81 in Figure 2 ). The opposite other end is firmly connected with the connecting body 103, which is fixed at the first slide (number 33 in Figure 2 ). A plurality of first energy lines 52 is guided from the first plug connector 94 to the first end cap 83. There, they each enter the first cavity 51 through the assigned first opening 53. The first end cap 83 comprises a commercially available cable entry strip 98, which forms the first openings 53, wherein the first openings can be flexibly matched to the required number of first energy lines 52. In contrast to Figure 3 , the unnecessary space of the cable entry strip 98 is preferably closed.

[0035] Another course of the only first energy line 52 is shown in Figure 3 with dotted lines, wherein further first energy lines 52 run parallel thereto. The first energy line 52 extends from the associated first opening 53 through the first energy chain 50 to a second opening (number 54 in Figure 254 in the figure). From there, it extends outside the first housing 32 to the second plug connector 95. During the movement of the first linear motion system 30, the first energy line 52 is deformed solely in the region of the first energy guide chain, ie in the first cavity 51.

[0036] In addition, Figure 3 The connecting plate 97 can be seen, which is firmly connected to the first shell 32, in particular to the first body of the first shell ( Figure 2 The first housing 32 is connected to the auxiliary slider ( Figure 1 23) are securely connected.

[0037] Figure 4 1 shows a perspective view of the second linear motion system 40 without the corresponding first body. The cavity housing 71 of the second linear motion system 40 is configured to be similar to the cavity housing ( Figure 1 70) in the same way, so you can refer to Figure 2 and 3 The explanation made, wherein the second energy guide chain 60 corresponds to the first energy guide chain ( Figure 3 50 in the figure), wherein the second energy line 62 corresponds to the first energy line ( Figure 3 52 in the .

[0038] Because the second body 82 of the second linear motion system 40 is significantly smaller than the second body of the first linear motion system, the first body is screwed to the second body 82 via the fixing thread 101, and the clamping strip is eliminated. Figure 2 96 in the .

[0039] The second drive 44 of the second linear motion system 40 includes a ball screw drive, the screw of which is driven directly by the second electric motor 45. The second body 82 of the second linear motion system 40 is made of steel, while the first body is also made of aluminum. Accordingly, a one-piece embodiment of the first and second bodies is not considered here.

[0040] The fourth plug connector 100 assigned to the elongated second opening 64 is designed to be freely movable so that the fourth plug connector can be inserted into the fixed second plug connector ( Figure 2 The second energy line 62 is led to the second electric motor 45 through the associated first opening 63 , wherein another second energy line is led to the fixture 93 through another first opening.

[0041] Due to the first body not shown, the second opening 64 is Figure 4The second energy line 62 is shown in dashed lines. It is elongated in the direction of the second axis 41, where the second energy line 62 is routed through.

[0042] Figure 5 A cross section of a second embodiment of the first linear motion system 30' is shown. The second embodiment of the first linear motion system 30' is constructed identically to the first embodiment with the exception of the differences explained later on, so that reference can be made to the explanations made for Figures 1 to 3 In Figure 1 , 2 , 3 and 5 the same reference numerals are assigned to identical or corresponding parts.

[0043] In order to further increase the bending stiffness of the first housing 32, the respective first body 81 is provided with a dovetail-shaped protrusion 104 which is form-fittingly inserted into a matching groove in the second body 82. The dovetail-shaped protrusion 104 and the groove are preferably manufactured together when the bodies 81; 82 are extruded. The insertion is preferably substantially gapless. The dovetail-shaped protrusion 104 can also be arranged at the second body 82, wherein a matching groove is arranged at the first body 81. Instead of the dovetail shape, other shapes which form a lateral recess, such as a T shape, can also be considered.

[0044] Furthermore, the cross-sectional shape of the second body 82 can be seen in Figure 5 . This is constructed in the shape of a U with a base 85 and two U-shaped legs 86. The base 85 abuts against the first body 81. Further, the rectangular cross-sectional shape of the first body 81 can be seen, wherein the longer rectangular sides abut against the base 85. The wall thickness is substantially constructed constant over the circumference of the rectangle. The second opening 54 is arranged at the shorter rectangular sides. The clamping bars 96 are screwed to the longer rectangular sides.

[0045] It is also pointed out that the spindle 102 of the ball screw drive already mentioned. For further details in the region of the second body 82 reference is made to DE 197 38 988 B4.

[0046] Figure 6 A cross section of a third embodiment of the first linear motion system 30" is shown. The third embodiment of the first linear motion system 30" is constructed identically to the first or second embodiment with the exception of the differences explained later on, so that reference can be made to the explanations made for Figures 1 to 3 and 5. In Figure 1 , 2 , 3, 5 and 6 the same reference numerals are assigned to identical or corresponding parts.

[0047] In a third embodiment, the first and second bodies 81; 82 are constructed integrally with one another, so that the clamping strips and dovetail-shaped projections can be dispensed with.

[0048] The second openings 54 are arranged here as shown in Figure 5 . In the integral third embodiment, it is preferable, however, for the second openings 54 to be arranged in the region of the U-shaped base 85 of the second body 82 as shown in Figure 6 . The respective first energy line 52 can then be routed as far as possible within the first housing 32, so that it cannot be seen from the outside. The connecting bodies 103' match the changed position of the second openings 54.

[0049] The outer dimensions of the first and second bodies 81; 82 are adapted to one another, so that a form without protrusions is obtained. The wall thicknesses shown in Figure 6 can also be optimized in terms of maximum rigidity with simultaneous minimum material consumption.

[0050] List of reference signs

[0051] 10 Cartesian kinematic system

[0052] 20 auxiliary linear kinematic system

[0053] 21 auxiliary axis

[0054] 22 auxiliary housing

[0055] 23 auxiliary slide

[0056] 24 auxiliary drive

[0057] 25 electric motor

[0058] 30 first linear kinematic system (first embodiment)

[0059] 30' first linear kinematic system (second embodiment)

[0060] 30'' first linear kinematic system (third embodiment)

[0061] 31 first axis

[0062] 32 first housing

[0063] 33 first slide

[0064] 34 first drive

[0065] 35 first electric motor

[0066] 40 second linear kinematic system

[0067] 41 second axis

[0068] 42 second housing

[0069] 43 second slider

[0070] 44 second driver

[0071] 45 second motor

[0072] 50 first energy guide chain

[0073] 51 first cavity

[0074] 52 first energy line

[0075] 53 first opening

[0076] 54 second opening

[0077] 60 second energy guide chain

[0078] 61 second cavity

[0079] 62 second energy line

[0080] 63 first opening

[0081] 64 second opening

[0082] 70 cavity housing of first linear motion system

[0083] 71 cavity housing of second linear motion system

[0084] 81 first body

[0085] 82 second body

[0086] 83 first end cap

[0087] 84 second end cap

[0088] 85 base

[0089] 86 U-shaped edge

[0090] 90 auxiliary energy guide chain

[0091] 91 stand

[0092] 92 base plate

[0093] 93 clamp

[0094] 94 first plug connector

[0095] 95 second plug connector

[0096] 96 clamping bar

[0097] 97 connecting plate

[0098] 98 cable entry strip

[0099] 99 third plug connector

[0100] 100 fourth plug connector

[0101] 101 fixing screw

[0102] 102 lead screw

[0103] 103 connecting body (first embodiment)

[0104] 103' connecting body (second embodiment)

[0105] 104 dovetail-shaped protrusion

Claims

1. A linear motion system (30; 30'; 30"; 40) for use in a Cartesian motion system (10), wherein: The linear motion system (30; 30'; 30"; 40) has a housing (32; 42) which is arranged along a linear axis (31; 41), wherein the slide (33; 43) is supported on the housing (32; 42) in a manner that allows linear movement along the direction of the axis (31; 41), wherein the linear movement system (30; 30'; 30"; 40) is provided with an energy chain (50; 60) that is movable along the aforementioned axis (31; 41), The invention is characterized in that the energy chain (50; 60) is completely accommodated in a cavity (51; 61) formed by the housing (32; 42), wherein the cavity (51; 61) has at least one first opening (53; 63) through which the associated energy line (52; 62) is guided, wherein the cavity (51; 61) has a single second opening (54) extending in the direction of the axis (31; 41), wherein the energy line (52; 62) extends from the associated first opening (53) further through the energy chain (50; 60) and further through the second opening (54) to the slide (33; 43), wherein the housing (32; 42) comprises a first body (82), the cavity (51; 61) being partially delimited by the first body (81), the first body extending along the axis (31; 41) with a constant cross-sectional shape, wherein the respective second opening (54; 64) is arranged at the first body (81), The housing (32; 42) comprises a second body (82) which extends along the axis (31; 41) with a constant cross-sectional shape, wherein the second body (82) surrounds a linear guide mechanism of the slide (33) and a part of the drive (34), wherein the aforementioned cross-sectional shape is configured as a U-shape having a base (85) and two U-shaped edges (86), wherein the first and second bodies (81; 82) are configured as a single piece in the region of the base (85) or are firmly connected to one another.

2. The linear motion system according to claim 1, wherein: The cavity (51; 61) is formed by a separate cavity shell (70; 71), which is fixed to the remaining shell (32; 42) in such a way that the bending stiffness of the entire shell (32; 42) is greater than the bending stiffness of the entire shell (32; 42) without the cavity shell.

3. The linear motion system according to claim 1, wherein: The cavity (51; 61) is essentially closed, with the exception of the respective at least one first opening (53; 63) and the respective second opening (54; 64).

4. The linear motion system according to claim 1, wherein: The at least one first opening (53; 63) is substantially hermetically closed.

5. The linear motion system according to claim 1, wherein: The cavity (51; 61) is partially respectively provided with first and second end caps (83; 84) is limited, and an end cover is fixed at the end of the first body (81) opposite to the axis (31; 41), wherein all the first openings (53; 63) are arranged in the first end cover (83).

6. The linear motion system of claim 1, wherein: The cross-sectional shape of the first body (81) is configured as a rectangle, wherein the second opening (53; 64) is arranged at a narrower side of the rectangle.

7. The linear motion system according to claim 6, wherein: The longer rectangular sides rest against the base (85) or are formed integrally with the base.

8. A Cartesian motion system (10) with a first linear motion system (30) and an auxiliary linear motion system (20), wherein: The first linear motion system (10) comprises a first axis (31), a first housing (32), a first slide (33), a first energy chain (50), a first cavity (51) and at least one first energy line (52), wherein the first linear motion system is constructed in accordance with any of the preceding claims 1 to 7, wherein the auxiliary linear motion system (20) comprises an auxiliary housing (22), which extends along a linear auxiliary axis (21), wherein the auxiliary slide (23) is supported on the auxiliary housing (22) in a manner that allows linear movement in the direction of the auxiliary axis (21), wherein the first housing (32) or the first slide (33) is fixed to the auxiliary slide (23) in such a way that the auxiliary axis (21) and the first axis (31) are arranged at an angle different from zero.

9. The Cartesian motion system according to claim 8, wherein: A second linear motion system (40) is provided, which has a second axis (41), a second housing (42), a second slide (43), a second energy chain (60), a second cavity (61) and at least one second energy line (62), wherein the second linear motion system is constructed in accordance with any one of claims 1 to 7, wherein the second housing (42) or the second slide (43) is fastened to the first slide (33) in such a way that the first and second axes (31; 41) are arranged at an angle not equal to zero.

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