TWM470898U - Linear motion module - Google Patents

Abstract

A linear motion module includes a linear rail, a sliding block and a plurality of balls. The linear rail includes a plurality of rail grooves. The sliding block slides on the linear rail and includes a sliding block body, an end cap, a self-lubricating assembly and a dustproof assembly. The end cap is disposed on an end surface of the sliding block body. The self-lubricating assembly is mounted on a side of the end cap opposite to the slide block body. The self-lubricating assembly has at least one self-lubricating unit and a mounting unit. The mounting unit has an accommodating space which is disposed on a side opposite to the slide block body, and the self-lubricating unit is accommodated in the accommodating space. The self-lubricating unit has at least one protrusion portion, which correspondingly contacts with the rail grooves. The dustproof assembly has a plurality of dustproof units and is disposed on a side of the self-lubricating assembly opposite to the end cap, and one of the dustproof units directly covers the self-lubricating assembly. The balls are accommodated in the linear rail and the sliding block.

Description

Linear motion module

This creation is about a linear motion module, especially for a linear motion module with self-lubricating function.

The linear motion module is composed of a linear track, a sliding seat and a plurality of balls. The rolling of the balls in the circulation channel continuously drives the sliding block and the upper mechanism to move along the linear track, so that the mechanism can perform the required work or Performance function. Among them, there is frictional force on the contact surface regardless of the relative movement between the ball and the linear track or with the slide. As is well known in general physics theory, friction is often the largest source of kinetic energy consumption, and in the process of converting kinetic energy into heat energy, not only a large amount of energy is consumed, but also the hidden danger of overheating of equipment.

In response to the above problems, the industry has attempted to solve a variety of lubrication techniques by providing a plurality of lubrication technologies to reduce the friction coefficient and improve the energy utilization rate of the linear motion module during operation, so that the kinetic energy can be completely used for the operation of the drive mechanism. The main known methods currently include replenishing the linear motion module with oil gun manual timing or supplying it through an external piping. However, it is obvious that both of the above methods stop the supply of the oil from the outside, and thus the problem of improper operation causes the lubricant to splash or drip. In addition, the amount of oil added is not easy to estimate, resulting in excessive oil supply, oil spillover, or insufficient lubrication.

Although some operators have developed linear motion modules with self-lubricating components, the self-lubricating components of the mounting type are exposed to the external environment, and thus cause a large amount of moisture, dust or foreign matter due to capillary action. It not only directly affects its ability to transfer and resorb oil, but also because of exposure to oil, and often the problem of oil leakage. In summary, it is difficult to say that it is a good means of lubrication.

Therefore, how to provide a linear motion module, which is provided by the self-lubricating component, can automatically perform lubrication without externally supplying lubricating oil, and can provide self-lubrication. Proper protection of components to isolate moisture and dust, improve lubrication efficiency and service life has become one of the important topics.

In view of the above problems, an object of the present invention is to provide a linear motion module which can automatically perform lubrication without externally supplying lubricating oil by providing a self-lubricating component, and can provide appropriate protection for the self-lubricating component. To isolate moisture and dust, improve lubrication efficiency and service life.

To achieve the above objectives, the present invention provides a linear motion module including a linear track, a slider, and a plurality of balls. The linear track has a plurality of track grooves. The sliding seat is arranged on the linear track, and the sliding seat comprises a sliding seat body, an end cover, a self-lubricating component and a dustproof component. The inner side of the slide body has a plurality of inner return grooves corresponding to the track grooves, and the inner return grooves and the track grooves together form a plurality of inner return channels, and the inner sides of the slide body have a plurality of inner return channels Return channel. The end cover is disposed on one end surface of the slider body. The self-lubricating component is disposed on a side of the end cover relative to the sliding body, the self-lubricating component has at least one self-lubricating unit and a fixing unit, and the fixing unit is provided with a receiving space on a side opposite to the sliding body, and the self-lubricating unit The self-lubricating unit has at least one protrusion corresponding to and contacts one of the track grooves. The dustproof component has a plurality of dustproof units disposed on a side of the self-lubricating component relative to the end cover, and one of the dustproof components covers the self-lubricating component. Balls are housed in the inner return passages and the outer return passages.

In an embodiment, the dustproof assembly further includes a spacer disposed between the two dustproof units.

In an embodiment, the self-lubricating unit is integrally formed and simultaneously contacts opposite sides of the corresponding linear track.

In an embodiment, the fixing unit has at least one opening corresponding to the track grooves, and the protrusion contacts one of the track grooves through the opening.

In an embodiment, the amount of contact interference between the protrusion of the self-lubricating unit and the track grooves is between 0.05 mm and 0.3 mm.

In an embodiment, the self-lubricating unit is accommodated in a corresponding linear track of the fixed unit. side.

In an embodiment, the fixing unit has a first connecting portion, and the self-lubricating unit has a second connecting portion, and the first connecting portion and the second connecting portion cooperate with each other.

In an embodiment, the first connecting portion is a convex portion, and the second connecting portion is a concave portion, and the first connecting portion and the second connecting portion are engaged with each other.

In one embodiment, the self-lubricating unit is a porous oil-containing material or a polymeric oil-containing material.

In an embodiment, the dustproof component and the track grooves are in contact with each other.

According to the above description, the linear motion module according to the present invention has a self-lubricating component which can be mounted on the end cover, so that the linear track lubricating oil material can be directly supplied from the self-lubricating unit of the self-lubricating component during the operation. In order to reduce the friction between the ball and the linear track and the sliding seat, the dependence on the external input oil is reduced, and the interval of lubricating and curing the linear track can be extended, the inconvenience of the adding process and the influence of the estimation error are reduced. In addition, the self-lubricating component of the present invention has a fixing unit for accommodating the self-lubricating unit, and one of the dustproof units is covered by the self-lubricating component, so that the self-lubricating unit is restrained in the fixed unit, and the environment can be actively isolated. Water vapor, dust and foreign matter, to prevent these impurities from interfering with the capillary action of the oil and hinder the lubrication operation. In addition, since the self-lubricating unit is coated in the fixing unit, the oil material is not easily extravasated, thereby eliminating unnecessary consumption and making the coating oil material specific.

In addition, the dustproof component of the present invention is integrally disposed on the outermost side of the sliding seat, and has a plurality of dustproof structures of a plurality of dustproof units, thereby improving dust and foreign matter from entering the sliding seat body, thereby improving dustproofness of the linear motion module. efficacy.

[study]

no

[this creation]

1, 1a‧‧‧ linear orbit

11, 11a‧‧‧ track slot

2‧‧‧Slide

21‧‧‧Slide body

211‧‧‧Reflow trough

212‧‧‧External return channel

22‧‧‧End cover

221‧‧‧Reflow bending groove

23, 23a‧‧‧ self-running components

231, 231a‧‧‧ self-running unit

232, 232a‧‧‧fixed unit

24‧‧‧Dust components

241‧‧‧Dust unit

241a‧‧‧External dustproof unit

241b‧‧‧Dust-proof unit

242‧‧‧ spacers

25‧‧‧Reflux components

3‧‧‧ balls

A-A‧‧‧ hatching

B‧‧‧Area

BH‧‧‧Ball Holder

C11, C12‧‧‧ first connection

C21, C22‧‧‧second connection

DP‧‧‧Dust-proof parts

ES‧‧‧ end face

L‧‧‧linear motion module

O‧‧‧ openings

P‧‧‧Prominence

R‧‧‧ internal return channel

S‧‧‧ accommodating space

T1‧‧‧Contact interference

FIG. 1 is a schematic diagram of a linear motion module according to an embodiment of the present invention.

2 is an exploded view of the linear motion module shown in FIG. 1.

3 is a cross-sectional view of the linear motion module of FIG. 1 taken along line A-A.

4 is an enlarged schematic view of the self-lubricating assembly shown in FIG. 2.

FIG. 5A is a schematic view showing the self-lubricating component shown in FIG. 2 mounted on a linear track. FIG.

FIG. 5B is a schematic diagram of the self-running unit mounted on the linear track according to another embodiment of the present invention.

Fig. 5C is an enlarged schematic view showing a region B shown in Fig. 5A.

Fig. 6 is a schematic view showing the inner dustproof unit shown in Fig. 2 mounted on a linear track.

Hereinafter, a linear motion module according to a preferred embodiment of the present invention will be described with reference to the related drawings, wherein like elements will be described with the same reference numerals.

1 is a schematic view of a linear motion module according to an embodiment of the present invention, and FIG. 2 is an exploded view of the linear motion module shown in FIG. 1, please refer to FIG. 1 and FIG. 2 at the same time. The linear motion module L includes a linear track 1, a slider 2, and a plurality of balls 3. The linear track 1 has a plurality of track grooves 11, and the present embodiment is exemplified by a four-track linear track 1, that is, the linear track 1 has four track grooves 11. The slider 2 is slidably disposed on the linear rail 1 , and the slider 2 includes a slider body 21 , an end cover 22 , a self-lubricating component 23 , and a dustproof component 24 . 3 is a cross-sectional view of the linear motion module L shown in FIG. 1 taken along the line A-A, and please refer to FIG. 2 and FIG. 3 at the same time. The inner side of the slide body 21 has a plurality of inner return grooves 211 corresponding to the track grooves 11. The inner return groove 211 and the track groove 11 together form a plurality of inner return channels R, and the inner return channels R on both sides of the slide body 21 have a plurality of Return channel 212. The balls 3 are housed in the inner return passage R and the outer return passage 212. It should be specially noted that in order to simplify the drawing, the linear motion module L shown in FIG. 3 only shows the ball 3 on the inner return channel R and the outer return channel 212 on one side.

As shown in FIG. 1 and FIG. 2, the end cover 22 is disposed on one end surface ES of the slider body 21, and the end cover 22 is passed through a recirculation curved groove 221 designed on the inner side thereof to restrict and guide the ball 3 to the inner return passage R and the outer portion. The return passages 212 are cyclically moved, and the carriage 2 is moved relative to the linear track 1. The self-lubricating component 23 is disposed on a side of the end cover 22 relative to the slider body 21 , wherein the self-lubricating component 23 has at least one self-lubricating unit 231 and a fixing unit 232 . 4 is an enlarged schematic view of the self-lubricating assembly 23 shown in FIG. 2, please refer to FIG. 2 and FIG. 4 at the same time. The fixing unit 232 is disposed on the side opposite to the slider body 21 with an accommodating space S. The self-lubricating unit 231 is accommodated in the accommodating space S (please refer to FIG. 5A first). In this embodiment, the two self-lubricating units 231 are accommodated in the accommodating space S as an example. The dustproof assembly 24 is disposed on the side of the self-lubricating assembly 23 with respect to the end cover 22. Specifically, if viewed in the direction of the long axis of the slider 2, the four are arranged from the outside to the inside. The column order is sequentially the dustproof assembly 24, the self-lubricating assembly 23, the end cover 22 and the carriage body 21 (refer to FIG. 1).

In this embodiment, the two end caps 22, the two dustproof components 24, and the two self-lubricating components 23 are taken as an example, wherein the respective wet components 23 are composed of two self-lubricating units 231 and are housed in a fixing unit 232. Each of the end caps 22, the self-lubricating component 23 and the dustproof component 24 can be seen as a set of components and mounted on one side of the slider body 21. However, as is known to those skilled in the art, in other embodiments of the present invention, the carriage 2 may also have a single set of end caps 22, self-lubricating components 23, and dustproof components, for example, at one end of the carriage body 21. The assembly of 24, and the other end of the slider body 21 directly forms a structure for the ball 3 to reflow; or the other end only has the end cover 22, the present invention is not limited thereto. In addition, in order to clearly show the technical features, the following description will be performed on the end cover 22, the self-lubricating assembly 23 and the dust-proof assembly 24 at one end of the slider body 21, and the other group of components and their structures may be referred to.

FIG. 5A is a schematic view showing the self-lubricating component 23 shown in FIG. 2 mounted on the linear track 1, please refer to FIG. 4 and FIG. 5A at the same time. The self-drying unit 231 has a structure in which at least one protruding portion P corresponds to and contacts one of the track grooves 11, and the lubricating material is transferred from the drying unit 231 and applied to the track groove 11 of the linear track 1. Preferably, the fixing unit 232 has at least one opening O corresponding to the track groove 11, and the protrusion P can contact one of the track grooves 11 through the opening O. The total number of the projections P preferably corresponds to the number of the track grooves 11 of the linear track 1, and the number of the openings O corresponds to the number of the projections P. As described above, the linear track 1 of the present embodiment has four track grooves 11, and the two self-drying units 231 simultaneously contact the linear track 1 and are accommodated on the side of the fixed unit 232 corresponding to the linear track 1, and this creation The fixing unit 232 is not limited to correspond to the upper side, the left side, the right side, or a combination thereof of the linear track 1. In the present embodiment, each of the lubrication units 231 has two protrusions P, and each of the protrusions P passes through the opening O to be in contact with the track groove 11. Therefore, the two self-lubricating units 231 have four protruding portions P corresponding to the four track grooves 11 respectively.

In other embodiments, as shown in FIG. 5B, FIG. 5B is a schematic diagram of the self-lubricating assembly 23a of the other embodiment being mounted on the linear track 1a. The self-wetting unit 231a may also be an integrally formed structure, and the self-wetting unit 231a simultaneously contacts the opposite sides of the corresponding linear track 1a, and is disposed in the accommodating space S of the fixed unit 232a (please be shown in FIG. 4). In other words, the fixed unit The configuration of the accommodating space S of 232a and the self-lubricating unit 231a must correspond to each other. The self-wetting unit 231a has four protruding portions P corresponding to the respective track grooves 11a, but the present creation is not limited to the number of the protruding portions P.

As is known to those skilled in the art, in other embodiments of the present invention, the slider 2 may have only one side of the linear component 1 corresponding to the self-lubricating component 23, and the self-lubricating component 23 may have only one self-lubricating component. The unit 231 does not limit the number and configuration of the self-lubricating unit 231 and its protruding portion P. Only one self-lubricating unit 231 has a protruding portion P, and corresponding to one of the track grooves 11, the lubrication can be achieved. The effect of the oil material and coating on the track groove 11 is not limited to this creation.

Preferably, as shown in FIG. 4, the fixing unit 232 has first connecting portions C11 and C12, and the self-lubricating unit 231 has second connecting portions C21 and C22. The first connecting portion C11 and the second connecting portion C21 cooperate with each other, and the first connecting portion C12 and the second connecting portion C22 cooperate with each other. Of course, in other embodiments, only one set of the first connecting portion C12 and the second connecting portion C22 can cooperate with each other to fix the self-lubricating unit 231. In the embodiment, the first connecting portions C11 and C12 are a convex portion, and the second connecting portions C21 and C22 are a concave portion. The first connecting portions C11 and C12 and the second connecting portions C21 and C22 are engaged with each other, so that the self-lubricating unit 231 can be stably disposed on the fixing unit 232 to prevent the sliding seat 2 from sliding on the linear rail 1 to drive the self-lubricating component 23 . When moving, the self-drying unit 231 is detached from the fixing unit 232 due to frictional force. Of course, the present invention does not limit the configuration of the first connecting portions C11 and C12 and the second connecting portions C21 and C22, and only needs to be matched with each other. Of course, other mutually matching structures may be added to ensure the stable setting of the self-lubricating unit 231. In the fixing unit 232.

In addition, the self-drying unit 231 may be a porous oil-containing material or a polymer oil-containing material, such as wool felt or foam, which absorbs the lubricating oil through a high-efficiency capillary phenomenon and transmits it to the linear orbit 1 . Since the self-lubricating unit 231 is housed in the fixing unit 232, moisture, dust and foreign matter in the environment can be blocked to a certain extent, thereby preventing the self-lubricating unit 231 from absorbing too much water and gas, and transferring the oil into water to transfer moisture. Lubrication effect. In addition, the dustproof assembly 24 has a plurality of dustproof units 241, and one of the dustproof units 241 is disposed on the self-lubricating assembly 23 (as shown in FIG. 1) to achieve a better insulation effect.

In combination with the above structure, when the carriage 2 slides on the linear rail 1, the self-lubricating assembly 23 is driven to move, and since the protruding portion P of the self-lubricating unit 231 contacts the track groove 11, the oil can be simultaneously supplied for lubrication of the track groove surface. Homework, so it has a self-lubricating function and can extend the original solid The interval between lubrication and maintenance of the oil on the linear track 1 is determined. More importantly, the fixing unit 232 has an accommodating space S on the side opposite to the slider body 21, and the self-lubricating unit 231 is accommodated in the accommodating space S and is held by the fixing unit 232, and is simultaneously subjected to the dustproof assembly 24. The protection of the fixing unit 232, that is, the dust-proof assembly 24 is provided on the outer side of the self-lubricating unit 23, so that it is difficult to contact the moisture, dust and foreign matter in the external environment, and the high work efficiency can be maintained for a long time.

FIG. 5C is an enlarged schematic view of the B area shown in FIG. 5A, please refer to FIG. 5A and FIG. 5C at the same time. In the present embodiment, the protruding portion P of the self-wetting unit 231 has a shape corresponding to the track groove 11 of the linear track 1, and therefore, when the linear motion module L is assembled, the protruding portion P of the self-drying unit 231 is enabled and tracked. The groove 11 is closely attached, so that when the sliding seat 2 slides on the linear rail 1 and simultaneously drives the self-lubricating component 23, the protruding portion P is subjected to the frictional force and the self-lubricating unit 231 is a material of the porous oil-containing material or the polymer oil-containing material. When the track groove 11 is squeezed, the lubricating oil is released to the track groove 11 to maintain better lubricating efficiency. The cross-sectional shape of the protruding portion P may be, for example, a circular arc shape as shown in the drawing, and preferably, the protruding portion P of the self-lubricating unit 231 is in contact with the track groove 11 and interferes with each other (as shown by a broken line in FIG. 5C). The contact interference amount T1 is between 0.05 mm and 0.3 mm, including a combination of any value between 0.05 mm and 0.3 mm. In other embodiments, the cross-sectional shape of the protrusion P may also be a Goethe arc shape to cooperate with the track groove surface which is also a Goethe arc shape. The present invention is not particularly limited herein, and the ball can be fully touched. The rolling position is preferred to achieve the required lubrication in one actuation. Of course, under this condition, the size of the protrusion P and the amount of contact interference are not limited.

Further, as shown in FIGS. 1 and 2, the dustproof member 24 is disposed on the side of the self-lubricating assembly 23 with respect to the end cap 22. The dust-proof assembly 24 may have a configuration corresponding to the end face ES of the carriage body 21 so as to straddle both sides of the linear track 1, and the size is not limited, but it is preferable to match the size of the end face ES. The material of the dustproof assembly 24 includes, for example, plastic or plastic steel, and can be formed, for example, by injection molding or by assembly of components. Preferably, the dustproof assembly 24 includes a spacer 242 that is sandwiched between the two dustproof units 241. For the sake of clarity, the dustproof unit 241 provided outside is referred to as an outer dustproof unit 241a, and the dustproof unit 241 disposed inside is referred to as an inner dustproof unit 241b. The outer dustproof unit 241a, the spacer 242, and the inner dustproof unit 241b are sequentially disposed from the outside toward the end cover 22, and the spacer 242 is disposed between the outer dustproof unit 241a and the inner dustproof unit 241b. If the longitudinal direction of the slider body 21 is viewed, the inner dustproof unit The 241b, the spacer 242, and the outer dustproof unit 241a are sequentially disposed away from the end cover 22. In the present embodiment, the outer dust-proof unit 241a and the inner dust-proof unit 241b are both dust-proof members. In other embodiments, the outer dust-proof unit 241a and the inner dust-proof unit 241b can also be a single component. Creation is not limited to this. In the present embodiment, the inner dustproof unit 241b is disposed on the self-lubricating unit 23, so that the self-lubricating unit 231 is disposed between the fixing unit 232 and the inner dustproof unit 241b, and can effectively block moisture or dust. Moreover, since the inner dustproof unit 241b is disposed outside the fixing unit 232, the self-lubricating unit 231 is protected by the fixing unit 232 and the inner dustproof unit 241b at the same time. Therefore, it is not necessary to provide an outer sleeve in the self-lubricating assembly 23 to cover the self-lubricating unit 231. And this design can improve the efficiency of assembly.

6 is a schematic view showing the inner dustproof unit 241b shown in FIG. 2 mounted on a linear rail. It should be particularly noted that FIG. 6 is a schematic view of the inner dustproof unit 241b viewed from the slide body 21, so that the outer dustproof unit 241a is partially Can be combined with Figure 1 and Figure 2. As shown in FIG. 6, the dustproof member 24 and the track groove 11 are in contact with each other. Preferably, the outer dustproof unit 241a and the inner dustproof unit 241b both interfere with the track groove 11 (ie, the broken line shown in FIG. 6). Or, one of the outer dustproof unit 241a and the inner dustproof unit 241b interferes with the track groove 11; if the inner dustproof unit 241b and the track groove 11 interfere with each other, the outer dustproof unit provided on the outermost side of the slide 2 can be used. 241a first blocks a large foreign matter, and after the inner dustproof unit 241b scrapes off the dust or foreign matter on the track groove 11, the protruding portion P of the self-drying unit 231 applies the lubricating oil material to the track groove 11. In other words, it is possible to prevent the lubricating oil material from being contaminated with the track groove 11 having dust or foreign matter, so that dust or foreign matter is more difficult to remove and enter the sliding seat body 21, thereby damaging the linear motion module L. The dust-proof assembly 24 is integrally disposed on the outermost side of the slide 2 and has a dust-proof structure of the outer dust-proof unit 241a and the inner dust-proof unit 241b, thereby improving the effect of preventing dust or foreign matter from entering the slide body 21.

In addition, in this embodiment, as shown in FIG. 2, the sliding seat 2 can further include four dust-proof members DP, which are respectively coupled to the bottom side of the sliding seat body 21, and the balls held on the upper side of the linear rail 1 and the end cover 22 are held. Between the BH. The dustproof member DP is commonly used to block dust or foreign matter from entering the inside of the linear motion module L by the linear rail 1 and the upper and lower gaps of the slider body 21.

In addition, in this embodiment, the carriage 2 may further include a plurality of reflow elements 25 having a long tubular structure, and the long tubular structure is closely accommodated in the outer recirculation passage 212, instead of the outer recirculation passage 212 directly with the balls. 3 contact, forming a smoother and less interrupted circulation channel, Reducing the problem of the hole surface roughness and/or heat treatment deformation of the outer return passage 212 caused by the drilling. The reflow element 25 of the present embodiment can be independently fabricated and joined in the outer return passage 212 along the long axis direction of the carriage body 21. Each of the reflow elements 25 can be assembled to the opposite end faces ES of the carriage body 21 by fastening, snapping, bonding, locking, fitting, or a combination thereof. Of course, in other embodiments, the slider body 21 can also be inserted into the mold to directly form the reflow element 25 inside the outer recirculation passage 212 to integrally form the carriage body 21 and the reflow element 25. As is known to those skilled in the art, the linear motion module L can of course be fitted with the return flow channel 212 of the end cap 22 to form a ball for movement without using the reflow element 25. The circulation channel, this creation is not limited to this.

In summary, the linear motion module according to the present invention has a self-lubricating component that can be mounted on the end cover, so that the linear track lubricating oil material can be directly supplied from the self-lubricating unit of the self-lubricating component during the actuation process. In order to reduce the friction between the ball and the linear track and the sliding seat, the dependence on the external input oil is reduced, and the interval of lubricating and curing the linear track can be extended, the inconvenience of the adding process and the influence of the estimation error are reduced. In addition, the self-lubricating component of the present invention has a fixing unit for accommodating the self-lubricating unit, and one of the dustproof units is covered by the self-lubricating component, so that the self-lubricating unit is restrained in the fixed unit, and the environment can be actively isolated. Water vapor, dust and foreign matter, to prevent these impurities from interfering with the capillary action of the oil and hinder the lubrication operation. In addition, since the self-lubricating unit is coated in the fixing unit, the oil material is not easily extravasated, thereby eliminating unnecessary consumption and making the coating oil material specific.

In addition, the dustproof component of the present invention is integrally disposed on the outermost side of the sliding seat, and has multiple dustproof structures of a plurality of dustproof units, thereby improving dust and foreign matter from entering the sliding seat body to improve the dustproof effect of the linear motion module. .

The above is intended to be illustrative only and not limiting. Any equivalent modifications or alterations to the spirit and scope of this creation shall be included in the scope of the appended patent application.

1‧‧‧linear orbit

11‧‧‧ Track slot

2‧‧‧Slide

21‧‧‧Slide body

211‧‧‧Reflow trough

212‧‧‧External return channel

22‧‧‧End cover

221‧‧‧Reflow bending groove

23‧‧‧Self-wetting components

231‧‧‧Self-running unit

232‧‧‧Fixed unit

24‧‧‧Dust components

241‧‧‧Dust unit

241a‧‧‧External dustproof unit

241b‧‧‧Dust-proof unit

242‧‧‧ spacers

25‧‧‧Reflux components

3‧‧‧ balls

BH‧‧‧Ball Holder

DP‧‧‧Dust-proof parts

ES‧‧‧ end face

L‧‧‧linear motion module

P‧‧‧Prominence

S‧‧‧ accommodating space

Claims (10)

A linear motion module includes: a linear track having a plurality of track grooves; a slide seat slidingly disposed on the linear track, the slide base comprising: a slide body having a plurality of inner sides corresponding to the plurality of track grooves a returning trough, the inner recirculation trough and the plurality of inner troughs together form a plurality of inner return channels, and the inner side of the sliding body has a plurality of outer return channels corresponding to the inner return channels; and one end cover is disposed on the sliding body An self-lubricating component is disposed on a side of the end cover relative to the sliding body, the self-lubricating component has at least one self-lubricating unit and a fixing unit, and the fixing unit is opposite to the side of the sliding body Providing an accommodating space, the self-lubricating unit is disposed in the accommodating space, the self-lubricating unit has at least one protruding portion corresponding to and contacting one of the track grooves; and a dustproof component having a plurality of dustproof portions And a unit disposed on the side of the self-lubricating component relative to the end cover, one of the dustproof units is disposed on the self-lubricating component; and a plurality of balls are received in the inner return passage and the outer Flow channel. The linear motion module of claim 1, wherein the dustproof component further comprises a spacer disposed between the dustproof units. The linear motion module of claim 1, wherein the self-drying unit is integrally formed and simultaneously contacts opposite sides of the linear track. The linear motion module of claim 1, wherein the fixing unit has at least one opening corresponding to the track grooves, and the protrusion contacts the one of the track grooves through the opening. The linear motion module of claim 1, wherein the protrusion of the self-lubricating unit has a contact interference with the track grooves of between 0.05 mm and 0.3 mm. The linear motion module of claim 1, wherein the self-lubricating unit is disposed on a side of the fixed unit corresponding to the linear track. The linear motion module of claim 1, wherein the fixing unit has a first connecting portion, and the self-lubricating unit has a second connecting portion, and the first connecting portion and the second connecting portion cooperate with each other. The linear motion module of claim 7, wherein the first connecting portion is a convex portion, and the second connecting portion is a concave portion, and the first connecting portion and the second connecting portion are engaged with each other. The linear motion module of claim 1, wherein the self-drying unit is a porous oil-containing material or a polymer oil-containing material. The linear motion module of claim 1, wherein the dustproof component and the track grooves are in contact with each other.