DE102006040981A1 - Linear guiding device, has conductor arrangement formed completely within end plate units, where part of conductor arrangement is formed within base unit and/or insertion unit of end plate assembly for conducting lubricant - Google Patents

Abstract

The device has a guiding carriage (12) movably guided on a guide rail (14) in a longitudinal direction (L). The guiding carriage comprises a main body and an end plate assembly, where switching channel sections (30a, 30b) of a circulating channel is formed in the end plate assembly. The plate assembly exhibits a base part and an insertion part. The conductor arrangement is formed completely within end plate units (20a, 20b) and/or a part of the conductor arrangement is formed completely within the base unit and/or insertion unit for conducting a lubricant to a revolution of rolling element.

Description

The The invention relates to a linear guide device with a guide rail and one on the guide rail in the longitudinal direction by means of at least one endless Wälzkörperumlaufs slidably guided carriage, wherein the at least one rolling element circulation a circulation channel and a plurality of circulating in the circulation channel Comprises rolling elements, wherein the circulation channel is a load-bearing Wälzkörperkanalabschnitt, a return duct section and two the load bearing rolling element passage section and the return duct section comprising interconnecting Umlenkkanalabschnitte, wherein the carriages either a main body, at least one circulating assembly, in which at least one part at least one circulation channel is formed, and at least one End plate unit comprises, or a main body and at least one Endplattenbaugruppe comprises, in which at least one Umlenkkanalabschnitt a circulation channel is formed, wherein the Endplattenbaugruppe a base part and having an insert, and wherein in the end plate unit or in the base part and / or the insert a line arrangement for feeding of lubricant to the at least one Wälzkörperumlauf is provided.

Linear guide devices according to these two alternatives are known for example from DE 102 37 278 A1 or the DE 10 2004 036 529 A1 known. The line arrangements of these alternatives have in common that they are formed in the mounted state of the linear guide device mainly by two parts in contact, namely by the Endplatteneinheit and the base unit or by the insert and the main body. However, it has been shown in practice that these line arrangements do not have sufficient tightness against an undesirable escape of lubricant conveyed therein. In particular, there is the danger that lubricant exits at the contact points of the two parts in contact with each other. This unwanted leakage of lubricant has the consequence that it comes to pollution of the environment of the linear guide device and expensive lubricant is lost.

by virtue of The leakage is in such a line arrangements further the Danger that with different tightness or different leakage behavior one of the at least two circulation channels less lubricant is supplied as the other circulation channel or the other circulation channels.

It is therefore an object of the invention, a generic linear guide device in such a way that the tightness of the conduit arrangement across from the lubricant to be transported in the line arrangement improved becomes.

According to the invention this Task by a linear guide device of the type mentioned above, in which the conduit assembly is completely within the endplate unit is formed or provided in the base part of the line arrangement Completely within the base part or / and a part provided in the insert part the line arrangement completely is formed inside the insert. Because of this measure can unlike the prior art described above, a lossless one Transport of lubricant ensured by the line arrangement become. Furthermore, may be on separate sealing means, for example known from the prior art sealing lips, sealing hoses, etc., be waived, which is due to the manufacturing cost of the linear guide device according to the invention Cheap effect.

By the words "completely within" are in the sense of of the invention that in the Endplatteneinheit trained line arrangement or in the base part and / or the insert formed part of the line arrangement at least a line section comprises, wherein the or each line section only open at its entry end and at its exit end, but otherwise has a closed wall surface, i. a wall surface that in an orthogonal to the extension direction of the line section taken cut by a self-contained line course represents is. If a plurality of line sections is provided, then the entrance end of a downstream in the lubricant supply direction line section with the discharge end of a upstream in the lubricant supply direction line section keep in touch. Are the entrance ends of a plurality of in lubricant feed direction downstream Line sections with the outlet end of an upstream in the lubricant supply direction line section in conjunction, so a branched line arrangement can be realized as they supply a plurality of lubrication points with lubricant is required.

Around the lubricant supply to the line assembly and for the discharge of by the conduit arrangement guided lubricant preferably to the to be lubricated circulation channels or to be able to provide the rolling bodies to be lubricated therein proposed that at least one inlet end of a line section a lubricant introduction point and at least one exit end a line section forms a lubricant delivery point.

Further it can be provided that at least one outlet end of a line section sealed sealed. This can on the one hand a line of the lubricant exclusively between lubricant inlet point (s) and lubricant outlet (s) and on the other hand the production of the line arrangement be simplified. In a particularly simple manner, at least an exit end through the circulation assembly or by the respectively other part, insert or base part, sealed sealed be. This allows additional Sealant and the associated additional costs and work steps in the manufacture of the linear guide device be avoided.

The Production of the line arrangement can, for example, if the Endplattenabschnitt or the base part and / or the insert by means injection molding, preferably made of plastic, is or are, characterized be further simplified that at least two rectilinear Line sections are arranged in alignment with each other. The least two rectilinear line sections can then namely be made for example by means of a single slider.

Around when, from a common lubricant introduction point a Plurality of line branches comprising at least one line section, each of which has a lubricant delivery point to be able to that Essentially the same amount of lubricant at each lubricant delivery point to the circulating channels to be lubricated it is proposed that the promotion of lubricant between the lubricant introduction point and the opposite lubricant delivery point opposite resistance in each of the branches is the same size.

The The invention will be described below with reference to the accompanying drawings of two embodiments be explained in more detail. It shows:

1 a perspective view of a first alternative embodiment of a linear guide device according to the invention in a state with a removed Endplatteneinheit;

2 a sectional view according to the in 1 by the dash-dotted line II indicated cutting plane;

3 a perspective view of an end plate assembly of a second alternative embodiment of a linear guide device according to the invention; and

4 a sectional view according to the in 3 by the dash-dotted line IV indicated cutting plane.

In 1 is a first embodiment of a linear guide device according to the invention generally with 10 designated. It has essentially the same structure as that from the DE 102 37 278 A1 known linear guide device. Therefore, the related disclosure of the DE 102 37 278 A1 made by reference in part to the present disclosure.

The linear guide device 10 includes a carriage 12 for example, for the purpose of linear displacement of workpieces mounted thereon along a guide rail 14 (shown schematically by a dashed line) in direction L is displaceable. The carriage 12 comprises several parts, in particular a base unit 16 , which is used for mounting the workpieces or the workpiece carrier carrying them, two circulating assemblies 18a . 18b and two end plate units 20a . 20b ,

For low-friction movement of the carriage 12 on the guide rail 14 a plurality of endlessly rotating rolling elements (not shown) is provided, which in a manner known per se in endless juxtaposition in Wälzkörperumläufen 24a . 24b are arranged. It is in the embodiment according to 1 in each circulating assembly 18a . 18b each one rolling element circulation 24a respectively. 24b intended. The rolling element circulations 24a . 24b each have several sections, namely a load-bearing channel section 26a . 26b , in which the rolling elements on the one hand on a track of the guide rail 14 and on the other hand on a track of the carriage 12 support and its load on the guide rail 14 transferred, and a load-free return duct section 28a . 28b (please refer 2 ) and the return duct section 28a . 28b and load-bearing channel section 26a . 26b connecting deflection channel sections 30a . 30b at both ends of the return duct sections 28a . 28b and load-bearing channel sections 26a . 26b ,

At the in 1 and 2 illustrated embodiment, the carriage-side track of the load-bearing Kanalabschnittn 26a . 26b and the return channel 28a . 28b in the respective circulation assembly 18a respectively. 18b formed while the Umlenkkanalabschnitte 30a . 30b in the two end plate units 20a and 20b are formed.

Starting from such a linear guide device 10 the present invention is concerned with the design of the Leitungsungsanordnun gene 32 which circulates lubricant to the rolling elements 24a . 24b in the region of Umlenkkanalabschnitte 30a . 30b serve.

In 2 is the end plate unit 20a in the area of the line arrangement 32 shown cut. According to the invention, the line arrangement runs 32 completely inside the end plate unit 20a , To lubricant over the piping 32 to the Wälzkörperumläufen 24a . 24b The lubricant is supplied by an operator via a lubricant introduction point 34 (please refer 1 ), for example by means of a lubricant press in a first line section 32a the line arrangement 32 brought in. An exit end of the conduit section 32a stands with the entry ends of two further line sections 32b and 32c in lubricant transfer connection, ie at the transition from the line section 32a to the pipe sections 32b and 32c is an undesirable lubricant leakage reliably prevented by manufacturing measures. Similarly, the exit end of the conduit section 32b with two further line sections 32d and 32e in lubricant transfer line. The exit end of the line section 32d forms the lubricant delivery point 36a to the rolling element circulation 24a while the exit end of the conduit section 32e through a side wall 19a the circulation assembly 18a is closed, so that no lubricant can escape. In an analogous way, the lubricant delivery point 36b of the rolling element circulation 24b over the pipe sections 32c . 32f and 32g Lubricant supplied, wherein the outlet end of the line section 32g through the side wall 19b the circulation assembly 18b is closed.

If it was said above that the conduit arrangement 32 "Completely within" the end plate unit 20a runs, then it is meant that the peripheral wall of the individual pipe sections between the inlet end and the outlet end no opening whatsoever to the outside environment out that the standing together in lubricant transfer line sections directly and without any opening to the outside environment merge into each other, and that each inlet end and / or outlet end of line sections, which forms neither a lubricant introduction point nor a lubricant delivery point is reliably sealed. In particular, the line sections thus have a closed wall surface, ie a wall surface which is in an orthogonal to the extension direction of the respective line section 32a to 32g taken section is represented by a self-contained line course.

How to get out 2 easily sees, the line sections 32a to 32g a straight course, which in the manufacture of Endplatteneinheit 20a In plastic injection molding training inside the Endplatteneinheit 20a by slide allows. Further, the line sections 32b and 32e respectively. 32c and 32g aligned with each other. They can therefore each be formed by a common slide.

It goes without saying that the Endplattenteinheit 20b one to the end plate unit 20a having identical structure.

In 3 and 4 a second embodiment of a linear guide device according to the invention is shown. Corresponding parts are therefore provided with the same reference numerals as in 1 and 2 , but increased by the number 100 , Further, the linear guide device becomes 110 according to 3 and 4 in the following will be described only insofar as they differ from the linear guide device 10 according to 1 and 2 which is expressly referred to herewith.

In 3 is one of two end plate assemblies 140 one at 112 indicated guide carriage shown along a direction indicated by a dotted line guide rail 114 in the longitudinal direction L is slidably mounted. The linear guide device 110 has essentially the same structure as that of the DE 198 30 140 A1 known linear guide device. Therefore, the related disclosure of the DE 198 30 140 A1 made by reference in part to the present disclosure.

The end plate assembly 140 includes a base part 142 and one in the assembled state of the end plate assembly 140 in the base part 142 recorded insert 144 , As in 3 are shown in the end plate assembly 140 on both sides of the guide rail 114 two Umlenkkanalabschnitte 130A1 . 130a2 respectively. 130b1 . 130b2 educated. These represent sections of four in the carriage 112 provided Wälzkörperumläufen.

In 3 is the course of a line arrangement 132 for supplying lubricant to the Umlenkkanalabschnitten 130A1 . 130a2 and 130b1 . 130b2 indicated by dashed lines. Like the line arrangement 32 according to the first embodiment 1 and 2 is also the conduit arrangement 132 from a plurality of pipe sections 132a to 132u assembled completely within the endplate assembly 140 are formed. More precisely, the line sections 132a to 132f completely within the base part 142 formed while the line sections 132g to 132u completely inside the insert 144 are formed.

The line arrangement 132 differs from the line arrangement 32 according to 1 and 2 mainly by having a total of three lubricant introduction points 134a . 134b and 134c has, in the base part 142 are formed. The pipe sections 132a to 132 Form a lubricant collection system through which the lubricant regardless of which lubricant introduction point he was introduced, a common line section 132o is fed to the line section 32a the embodiment according to 1 and 2 equivalent. The remaining line sections 132p to 132u correspond to the pipe sections 32b to 32g the embodiment according to 1 and 2 , Furthermore, the line sections 132r and 132u corresponding to the Umlenkkanalabschnitten 130A1 . 130a2 and 130b1 . 130b2 two lubricant dispensers each 136a1 . 136a2 respectively. 136b1 . 136b2 on. Alternatively, of the pipe sections 132r and 132u also still two more line sections go out, where the lubricant delivery points are provided.

As in the embodiment according to 1 and 2 represents the entrance end of each of the pipe sections, in one and the same part, base part 142 or insert 144 , are either a lubricant introduction point or are in lubricant transfer communication with the exit end of an upstream line section. The entry ends of the line sections 132g . 132h and 132i represent in this respect lubricant introduction points, as on them the lubricant for the first time in the insert 144 entry. In an analogous manner, the exit end of each of the line sections, which in one and the same part, base part 142 or insert 144 , are either a lubricant delivery location or are in lubricant transfer communication with the entry end of a downstream conduit section or it is the other part, base part 142 or insert 144 , sealed against unwanted leakage of lubricant. This is in 3 marked with "x." The exit ends of the line sections 132b . 132d and 132f represent in this respect lubricant dispensing points, as to the lubricant from the base part 142 to the insert 144 is handed over. The transfer points are marked with "=".

As in the embodiment according to 1 and 2 have all line sections 132a to 132u each a straight-line course. This allows for the manufacture of the Endplattenbaugruppe 140 or of their parts, base part 142 and insert 144 , injection-molded plastic training inside the base part 142 and insert 144 through slide. A part of the line sections is aligned with each other. They can therefore each be formed by a common slide.

Claims (8)

Linear guide device ( 10 ; 110 ) with a guide rail ( 14 ; 114 ) and one on the guide rail ( 14 ; 114 ) in the longitudinal direction (L) by means of at least one endless Wälzkörperumlaufs slidably guided carriage ( 12 ; 112 wherein the at least one rolling element circulation comprises a circulation channel and a plurality of rolling elements revolving in the circulation channel, wherein the circulation channel comprises a load-bearing rolling body channel section, a return channel section and two deflection channel sections interconnecting the load-bearing rolling body channel section and the return channel section; 12 ; 112 ) either a main body ( 16 ), at least one circulating assembly ( 18a . 18b ), in which at least a part of at least one circulation channel is formed, and at least one end plate unit ( 20a . 20b ), or a main body ( 116 ) and at least one end plate assembly ( 140 ) in which at least one Umlenkkanalabschnitt a circulation channel is formed, wherein the Endplattenbaugruppe ( 140 ) a base part ( 142 ) and an insert ( 144 ) and wherein in the end plate unit ( 20a . 20b ) or in the base part ( 142 ) and / or the insert ( 144 ) a management order ( 32 ; 132 ) is provided for supplying lubricant to the at least one rolling element circulation, characterized in that the line arrangement ( 32 ; 132 ) completely within the end plate unit ( 20a . 20b ) is formed or one in the base part ( 142 ) part of the management order ( 132 ) completely within the base part ( 142 ) and / or one in the insert ( 144 ) part of the management order ( 132 ) completely inside the insert ( 144 ) is trained. Linear guide device according to claim 1, characterized in that in the end plate unit ( 20a . 20b ) trained line arrangement ( 32 ) or in the base part ( 142 ) and / or the insert ( 144 ) part of the management order ( 132 ) at least one line section ( 32a - 32g ; 132a - 132u ), wherein, when providing a plurality of pipe sections, the inlet end of a downstream in the lubricant supply direction line section with the off a connecting end in the lubricant supply direction upstream line section is in communication. Linear guide device according to claim 2, characterized in that at least one inlet end of a line section ( 32a ; 132a . 132c . 132e ) a lubricant introduction point and at least one outlet end of a line section ( 32d . 32f ; 132r . 132u ) forms a lubricant delivery point. Linear guide device according to claim 2 or 3, characterized in that at least one outlet end of a line section ( 32e . 32g ; 132l . 132m . 132n . 132q . 132T ) is sealed sealed. Linear guide device according to claim 4, characterized in that the at least one outlet end by the circulating assembly ( 18a . 18b ) or by the other part, insert ( 144 ) or base part ( 142 ), sealed is sealed. Linear guide device according to one of claims 2 to 5, characterized in that at least two straight duri Fende line sections ( 32b - 32e . 32c - 32g ; 132l - 132j . 132i - 132k . 132n - 132o . 132p - 132q . 132s - 132T ) are aligned with each other. Linear guide device according to one of claims 1 to 6, characterized in that the end plate section ( 20a . 20b ) or the base part ( 142 ) and / or the insert ( 144 ) is by injection molding, preferably made of plastic, is or are. Linear guide device according to one of claims 1 to 7, characterized in that when from a common lubricant introduction point ( 32a ; 132o ) emanating a plurality of line branches each comprising at least one line section, each of which has a lubricant discharge point, the same resistance to the promotion of lubricant between the lubricant introduction point and the respective lubricant discharge point resistance in each of the line branches.