TWM576212U - Linear sliding track - Google Patents

Abstract

The present invention provides a linear slide rail, which is mainly composed of a slide rail, a slider, and an end cover, and is mainly provided with a positioning groove and a top surface on the bearing convex portion of the slider, and the top cover The positioning convex portion positioned with the positioning groove and the abutting surface abutting against the top surface are provided, so that the positioning or fixing can be performed during the preliminary assembly, and the end cover is prevented from falling off. The problem of the slider extends the service life of the end cover; in addition, the slider is a one-piece structure of metal injection molding, which utilizes a high-stability molding method, reduces the amount of processing and improves the yield, and can reduce the plasticity. The number of parts assembled and the assembly time are reduced to reduce the possibility of assembly errors.

Description

Linear slide

The present invention provides a linear slide rail which is related to the combination of the slider and the end cover of the linear slide rail.

Today's linear slides are widely used in industry. In addition to being a high-precision effect of linear feed transmission, other aspects have the advantages of low friction loss rate, high energy conversion rate, low noise and high rigidity, and therefore linearity. Slide rails are indispensable for the importance of today's industrial applications.

The following is a comparison of the most recent linear slide technology with the recent improvements in the market:

Referring to Fig. 1, there is shown a drawing of a linear slide of the U.S. Patent No. 4,934,834, which has a slider 1 having an inverted U-shaped cross section mounted above the rail and an end face provided on the slider 1. The end cover 2, the slider 1 and the end cover 2 are made of high-performance engineering plastic, and one end surface of the slider 1 is convexly provided with two engaging projections 3, and the end faces of the end cover 2 are recessed respectively corresponding to each other. The engaging grooves 4 of the two engaging projections 3 are thereby fixed to the end faces of the slider 1 in a snap fit manner.

However, in the above-mentioned combination, since the slider 1 and the end cover 2 cannot be firmly coupled, the end cover 2 is easily swayed slightly and falls off the end surface of the slider 1, thus, It will affect the service life, and it may even be that the end cover 2 is detached and damaged, so that the end cover 2 is twisted and deformed and can no longer be combined with the slider 1.

Moreover, when the end cover 2 is initially engaged with the slider 1, since there is no assembly structure capable of guiding positioning between the end cover 2 and the slider 1, the positioning is not easy, and the assembly is not easy. It takes time and effort, and the required working hours are relatively long, which makes the overall work efficiency greatly reduced, which in turn causes great trouble for the assembler. In addition, although the slider 1 formed of engineering plastic has a lightweight effect, the rigidity is relatively low, and the function of use is slightly insufficient, and there is still room for improvement.

The purpose of the present invention is to provide a linear slide rail, which is mainly capable of guiding positioning and having a stable function during preliminary assembly, thereby achieving an assembly and saving time and labor saving effect.

Another object of the present invention is to provide a linear slide rail, which is mainly a one-piece structure design in which the slider is formed by metal injection molding, thereby reducing the number of components to be assembled and eliminating the possibility of assembly errors.

Therefore, in order to achieve the foregoing object, a linear slide according to the present invention includes:

a slide rail extending along an axial direction;

a sliding block disposed on the sliding rail reciprocally along the axial direction, and having a first end surface, a second end surface opposite to the first end surface, and two recirculations extending through the first end surface and the second end surface a receiving portion protruding from the first end surface, the bearing convex portion having a top surface, a bottom surface, a connecting surface connecting the top surface and the bottom surface, and at least one recessed by the connecting surface Positioning slot; and

An end cover is disposed on the first end surface of the slider, and has an end surface abutting the first end surface, and a groove recessed by the end surface and having a groove bottom surface, the groove is combined with the bearing convex And having at least one positioning protrusion protruding from the bottom surface of the groove and abutting against the at least one positioning groove, an abutting surface connecting the bottom surface of the groove and abutting the top surface, and two bottom surfaces and the end surface of the groove The rotary groove is recessed and forms two return paths with the slide rail and the two return passages, and each of the return paths is circulated for a rolling unit.

Preferably, the end cap has two locking holes extending through the bottom surface of the slot, and each of the bearing protrusions has two screw holes respectively corresponding to the two locking holes, and the two screws are respectively inserted into the two locking holes and the two The two screw holes further lock the end cover to the two screw holes of the slider.

Preferably, wherein the slider is metal injection molded.

Preferably, the end surface of the end cover is recessed with two engaging grooves, and the first end surface of the slider protrudes with two engaging convex portions respectively corresponding to the two engaging grooves, and the two return channels are located at the supporting convex portion. Below the portion, each of the engaging convex portions is located under each of the return channels, and the top surfaces of the two engaging convex portions, the bottom surface of the supporting convex portion, the two return channels and the two rotary grooves of the end cover form the two Return path.

Preferably, the length of the two engaging convex portions extending along the axial direction is not less than the length of the bearing convex portion extending along the axial direction.

Preferably, the connecting surface of the bearing protrusion and the first end surface of the slider are oriented in the same direction, and the at least one positioning groove is recessed on the connecting surface and the bottom surface of the bearing protrusion.

Preferably, the bearing protrusion has two side faces and two positioning grooves, each of the positioning grooves is recessed on each of the side connecting faces, and the groove wall surface of each of the positioning grooves is inclined, and the groove of the groove is grooved. Two positioning protrusions corresponding to the two positioning grooves are respectively protruded from the bottom surface.

Preferably, the top surface of the bearing protrusion and the abutting surface are planar, or the top surface of the bearing protrusion and the abutting surface are concave-convex.

Therefore, the linear slide rail provided by the present invention is mainly composed of a slide rail, a slider, and an end cover, and is mainly provided with a positioning groove and a top surface on the bearing convex portion of the slider. The end cover is provided with a positioning convex portion that is positioned with the positioning groove, and an abutting surface abutting against the top surface. Therefore, the guiding positioning or fixing function can be performed during preliminary assembly, and the end cover is further avoided. The problem of falling off the slider extends the service life of the end cap; in addition, the slider is a one-piece structure of metal injection molding, which utilizes a high-stability molding method to reduce the amount of processing and increase the yield, and It can reduce the number of plastic parts assembled and reduce the assembly man-hours, thus reducing the possibility of assembly errors.

Referring to FIG. 2 to FIG. 4 , the present invention provides a linear slide rail, which is mainly composed of a slide rail 10 , a slider 20 , two end covers 30 , and a plurality of screws 40 . The reflow structure of the linear slide rails is respectively disposed on both end faces of the slider 20, and the following only describes the structure of the single end cover 30 and one end of the slider 20, wherein:

The slide rail 10 is a rigid body of a strip shape and extends along an axial direction X.

The slider 20 is disposed on the slide rail 10 in a reciprocating manner along the axial direction X. The slider 20 has a first end surface 21 and a second end surface 22 opposite to the first end surface 21. a return passage 23 of the end surface 21 and the second end surface 22 , a bearing protrusion 24 protruding from the first end surface 21 , and two protruding protrusions on the first end surface 21 and located below the bearing protrusion 24 The engaging convex portion 25 is located below the bearing convex portion 24, and each of the engaging convex portions 25 is located under each of the return passages 23, and the bearing convex portion 24 has a top surface 241 and a a bottom surface 242, a connecting surface 243 connecting the top surface 241 and the bottom surface 242, a positioning groove 244 recessed by the connecting surface 243 and the bottom surface 242, and two screw holes 245 recessed by the connecting surface 243, The connecting surface 243 of the bearing portion 24 and the first end surface 21 of the slider 20 are oriented in the same direction. In the embodiment, the slider 20 is an integral structure of metal injection molding. The top surface 241 is exemplified by the uneven shape, but is not limited thereto, and is also planar. The length of the two engaging convex portions 25 extending along the axial direction X is equal to the length of the supporting convex portion 24 extending along the axial direction X, but is not limited thereto. The two engaging convex portions 25 are along the axial direction X. The length of the extension is not less than the length of the bearing protrusion 24 extending along the axial direction X, whereby the locking tool does not wear to the outside of the two engaging protrusions 25 when the screw 40 is locked. The surface maintains the integrity of the two engaging projections 25, thereby improving the durability of the use of the present invention.

The end cover 30 is disposed on the first end surface 21 of the slider 20 and has an end surface 31 abutting the first end surface 21, a recess 32 recessed by the end surface 31 and having a groove bottom surface 321 , and The two end faces 31 are recessed and respectively correspond to the engaging grooves 33 of the two engaging convex portions 25, and the groove 32 is combined with the receiving convex portion 24, and has a convex portion 321 protruding from the groove bottom surface 321 and abutting against the same a positioning convex portion 322 of the positioning groove 244, an abutting surface 323 connecting the bottom surface 321 of the groove and abutting against the top surface 241, two recessed surfaces of the groove bottom surface 321 and the end surface 31, and the sliding rail 10 and the two reflows The passage 23 forms two rotary grooves 324 of the return path, and two lock holes 325 which are respectively penetrated from the bottom surface 321 of the groove and respectively correspond to the two screw holes 245, and are respectively disposed on the two lock holes 325 and the two by the screws 40. The screw hole 245 further locks the end cover 30 to the two screw holes 245 of the slider 20 to achieve the locking position. The top surface 251 of the two engaging protrusions 25 and the bearing portion 24 The bottom surface 242, the two return channels 23 and the two rotary grooves 324 of the end cover 30 form the two return paths, and the return paths are circulated for a rolling unit 50. In this embodiment, The abutting surface 323 and the top surface 241 are concave-convex, but are not limited thereto, or are planar, and the abutting surface 323 of the end cover 30 is used for positioning the top surface of the bearing convex portion 23. 241.

The above description is the configuration description of each main component of the new embodiment. The efficacy of this new model is explained below.

The present invention is characterized in that the positioning groove 244 and the top surface 241 are disposed on the bearing protrusion 24 of the slider 20, and the end cover 30 is provided with a positioning convex portion 322 which is positioned with the positioning groove 244, and The abutting surface 323 of the top surface 241 abuts against each other, so that the positioning or fixing can be performed during the preliminary assembly, and the problem that the end cover 30 falls off from the slider 20 is further avoided, and the end cover is extended. In addition, the slider 20 is a one-piece structure of metal injection molding, which utilizes a high-stability molding method to reduce the amount of processing and increase the yield, and can reduce the number of assembled plastic parts and reduce the number of assemblers. At the time, the possibility of reducing assembly errors is achieved.

Please refer to FIG. 5 , which is a linear slide rail according to another embodiment of the present invention. Since the operation mode and the function of the linear slide rail are the same as those of the above embodiment, the details are not described herein. The difference in this embodiment is as follows:

The bearing protrusion 24 has two opposite sides, and the side surface 246 of the bottom surface 242 and the connecting surface 243 and the positioning groove 244 ′ are respectively recessed on each side surface 246 . And the connecting surface 243, the groove wall surface of each of the positioning grooves 244' is inclined, and the groove bottom surface 321 of the groove 32 protrudes from two positioning convex portions 322' corresponding to the positioning grooves 244', and the positioning convex portions respectively The 322 ′ is also in the shape of a ladder. The design of the two positioning protrusions 322 ′ and the two positioning grooves 244 ′ respectively can be easily combined and stabilized, so as to facilitate assembly.

As can be seen from the above, this creation has the following advantages:

First, it can perform guiding positioning or fixing during preliminary assembly.

Secondly, the problem that the end cover 30 falls off from the slider 20 is avoided, and the service life of the end cover 30 is prolonged.

Thirdly, the slider 20 is an integral structure of metal injection molding, which utilizes a high-stability molding method, reduces the amount of processing and improves the yield, and can reduce the number of assembled plastic parts and reduce the assembly man-hours, thereby achieving a reduction. The possibility of assembly error. .

In conclusion, the above embodiments and drawings are only preferred embodiments of the present invention, and the scope and scope of the present invention are not limited thereto, and all equivalent changes and modifications according to the scope of the novel application should belong to This new patent covers the scope.

[study]

1‧‧‧ Slider

2‧‧‧End cover

3‧‧‧Clamping bumps

4‧‧‧ snap groove

[This new type]

X‧‧‧ axial

10‧‧‧Slide rails

20‧‧‧ Slider

21‧‧‧ first end face

22‧‧‧second end face

23‧‧‧Return channel

24‧‧‧Accommodating convex parts

241‧‧‧ top surface

242‧‧‧ bottom

243‧‧‧ Connection surface

244, 244’‧‧‧ positioning slots

245‧‧‧ screw holes

246‧‧‧ side

25‧‧‧Clamping convex

251‧‧‧ top surface

30‧‧‧End cover

31‧‧‧ end face

32‧‧‧ Groove

321‧‧‧Slot bottom

322, 322'‧‧‧ positioning convex

323‧‧‧Abutment

324‧‧‧Rotary groove

325‧‧‧Keyhole

33‧‧‧ snap groove

40‧‧‧ screws

50‧‧‧ rolling unit

Figure 1 is a schematic view of one of the linear slides of the U.S. Patent No. 4,936,834; Figure 2 is an exploded perspective view of the present embodiment; Figure 3 is a cross-sectional view (I) of the present embodiment; A cross-sectional view (ii) of an example; and Fig. 5 is an exploded perspective view of another embodiment of the present invention.

Claims (8)

A linear slide rail comprising: a slide rail extending along an axial direction; a slider disposed on the slide rail reciprocally along the axial direction, and having a first end surface and a first end surface opposite to the first end surface a second end surface, two return passages extending through the first end surface and the second end surface, and a bearing protrusion protruding from the first end surface, the bearing protrusion having a top surface, a bottom surface, and a connection a connecting surface of the top surface and the bottom surface, and at least one positioning groove recessed by the connecting surface; and an end cover disposed on the first end surface of the slider and having an end surface abutting the first end surface, and a a groove recessed from the end surface and having a groove bottom surface, the groove being combined with the bearing protrusion and having at least one positioning protrusion protruding from the bottom surface of the groove and abutting against the at least one positioning groove, and a connection a bottom surface of the groove and abutting surface of the top surface, and two rotary grooves recessed from the bottom surface of the groove and the end surface and forming a return path with the sliding rail and the two return channels, each of the return paths for rolling The unit is circulated. The linear slide rail of claim 1, wherein the end cover has two locking holes extending through the bottom surface of the slot, and each of the bearing protrusions has two screw holes respectively corresponding to the two locking holes, and is respectively disposed by two screws. The two locking holes and the two screw holes further lock the end cover to the two screw holes of the slider. The linear slide of claim 1, wherein the slider is metal injection molded. The linear slide rail according to claim 1, wherein the end surface of the end cover is recessed with two engaging grooves, and the first end surface of the slider protrudes with two engaging convex portions respectively corresponding to the two engaging grooves, and the two reflows The channel is located below the bearing protrusion, and each of the engaging protrusions is located under each of the return channels, a top surface of the two engaging protrusions, a bottom surface of the bearing protrusion, the two return channels and the end cover The two rotary grooves form the two return paths. The linear slide rail according to claim 4, wherein the length of the two engaging convex portions extending along the axial direction is not less than the length of the bearing convex portion extending along the axial direction. The linear slide rail according to claim 1, wherein the connecting surface of the bearing protrusion and the first end surface of the slider are oriented in the same direction, and the at least one positioning groove is recessed on the connecting surface of the bearing protrusion. And the bottom surface. The linear slide rail according to claim 1, wherein the bearing convex portion has two side surfaces and two positioning grooves, each of the positioning grooves is recessed on each of the side surfaces and the connecting surface, and the groove wall surface of each of the positioning grooves is In the oblique shape, the bottom surface of the groove of the groove protrudes from two positioning convex portions respectively corresponding to the positioning grooves. The linear slide rail according to claim 1, wherein the top surface of the bearing convex portion and the abutting surface are planar, or the top surface of the bearing convex portion and the abutting surface are concave-convex.