CN218509978U - Multifunctional linear sliding block combined structure - Google Patents

Abstract

The utility model discloses a multifunctional linear slide block combined structure, which comprises a slide block and a slide rail, wherein the slide block comprises a slide block body, an outer returning device, an oil scraping sheet, a lower retainer, a dustproof sheet, a steel ball, an upper retainer, an inner returning device, an oil nozzle and a silencing strip; a plurality of steel ball outer ball channel holes and a plurality of steel ball inner ball channels are formed in the sliding block body, and at least 8 linear ball channels are formed after the steel ball outer ball channel holes are communicated with the steel ball inner ball channels; an inner arc-shaped ball path is arranged in the outer returner, an outer arc-shaped ball path is arranged on the inner returner, an oil filling port is arranged on the outer returner, a linear oil path is arranged at the inner position of the oil filling port of the outer returner, a white seed oil intersection, an upper oil storage grid, a lower oil storage grid and a connecting oil path are arranged in the inner returner, and the upper oil storage grid and the lower oil storage grid are communicated through the connecting oil path. Above-mentioned technical scheme, structural design is reasonable, simple structure, workable, lubricated effectual, dustproof effectual, the silence is effectual and the practicality is good.

Description

Multifunctional linear sliding block combined structure

Technical Field

The utility model relates to a linear motion mechanism technical field, concretely relates to multi-functional linear slider integrated configuration.

Background

The linear slide block sliding rail is a linear motion mechanism widely applied to various mechanical equipment, and has high precision because the balls are in contact with the guide rail, and the balls and the sliding rail need to be lubricated by lubricating oil, so that the friction between the balls and the sliding rail of the linear slide rail is reduced, the running smoothness of the linear slide rail is improved, and the service life of the sliding block of the sliding rail is prolonged.

The linear sliding block generally comprises a plurality of balls, the balls are contacted with the guide rail when the sliding block runs, the balls roll along a ball path on the guide rail, and when the sliding block is separated from the guide rail, the sliding block needs to be provided with a structure to keep the balls in a circulating ball path of the sliding block, so that the ball is kept from falling out particularly importantly; in addition, because iron chips, impurities and dust often fly in the running environment of the sliding block, the splashed and flying impurities are easy to fall into the balls of the sliding block, so that the balls are blocked, and the structure of the sliding block is damaged.

The linear slider is because ball and guide rail friction when the motion for the linear slider constantly produces the noise when the motion, produces not good influence to specific workplace.

The existing linear sliding block structure is shown in fig. 1, fig. 2 and fig. 3, fig. 1 shows 2A is a body diagram of a conventional returner in the current market, an oil path of the conventional linear sliding block structure is complicated and irregular, and is bent and multi-turn, as shown in fig. 1, 2A1, the conventional linear sliding block structure is difficult to machine and form, and a lubricating oil overflow path is easy to occur when lubricating oil passes through the bent oil path, so that the lubricating oil cannot smoothly reach a designed specified part according to the oil path, and the lubricating oil is easy to waste due to the fact that the oil path is complicated in design and the lubricating oil easily overflows when the lubricating oil is added; the white seed matched with the returner body has no oil circuit as shown in fig. 2A (3), the white seed matched with the returner body has no designed oil circuit, for example, no oil circuit exists between the white seed 3A1 and the white seed 3A2, and no oil outlet exists at the interface between the white seed and the ball way, as shown in fig. 3A 3. The existing structure causes that lubricating oil is difficult to enter the ball through the return device after flowing through the traditional oil duct, so that the lubricating effect is not achieved or is extremely poor; referring to fig. 3, the retainer 08 is assembled by the fitting relationship in which the insert portion 0801 is inserted into the hole portion 0901 of the return device 09, and both ends of the retainer are assembled by this structure; the assembly according to the structure is easy to cause assembly difficulty, and the difficulty is increased for the forming and die sinking of the returner. In addition, the dustproof structure is: the existing retainer 08, the steel sheet 012 and the plastic part 011 are combined, so that the structure is complex, the product realization difficulty is high, and the mass production and the product stability are not facilitated. The existing steel sheet is not provided with dustproof silent strips, so that the noise reduction effect is not obvious, and the practicability is poor.

SUMMERY OF THE UTILITY MODEL

Not enough to prior art exists, the utility model aims to provide a structural design is reasonable, simple structure, workable, lubricated effectual, dustproof effectual, the effectual and good multi-functional linear slider integrated configuration of practicality of silence.

In order to achieve the above purpose, the utility model provides a following technical scheme: a multifunctional linear sliding block combined structure comprises a sliding block and a sliding rail, wherein the sliding block comprises a sliding block body, an outer return device, an oil scraping sheet, a lower retainer, a dustproof sheet, steel balls, an upper retainer, an inner return device, an oil nozzle and a silencing strip; a plurality of steel ball outer side ball way holes and a plurality of steel ball inner side ball ways are formed in the sliding block body, and at least 8 linear ball ways are formed after the steel ball outer side ball way holes are communicated with the steel ball inner side ball ways;

an inner arc-shaped ball way is arranged in the outer returning device, an outer arc-shaped ball way is arranged on the inner returning device, and the inner arc-shaped ball way and the outer arc-shaped ball way are combined to form a semi-arc-shaped ball way;

an upper steel ball lane and a lower steel ball lane are arranged on the sliding rail, the upper steel ball lane and the lower steel ball lane are communicated, and steel balls are arranged in the upper steel ball lane and the lower steel ball lane;

an oil filling port is formed in the outer returner, a linear oil way is formed in the position, located inside the oil filling port, of the outer returner, and the oil filling port is communicated with the oil nozzle; the internal returner is internally provided with a white seed oil intersection, an upper oil storage grid, a lower oil storage grid and a connecting oil way, and the upper oil storage grid and the lower oil storage grid are communicated through the connecting oil way.

The utility model discloses further set up to: at least 4 inner arc ball tracks are arranged in the outer returning device, and two ends of each inner arc ball track are respectively combined with an outer ball track hole of the sliding block body and an inner ball track of the steel ball to form a closed annular ball track.

The utility model discloses still further set up to: the lower retainer is provided with a dustproof sheet slot, and a dustproof sheet is inserted in the dustproof sheet slot; the middle of the dustproof sheet is fixedly provided with a steel sheet, and the dustproof sheet is fixedly provided with 2 first contact points and second contact points which are in contact with the sliding rail.

The utility model discloses still further set up to: the lower retainer is mounted on the outer return device, the lower retainer is fixedly provided with an inserting part, the outer return device is provided with an inserting groove, and the inserting part is inserted into the aligned inserting groove.

The utility model discloses still further set up to: the lower retainer is provided with a retainer cambered surface, the slider body is provided with a slider cambered surface, and the retainer cambered surface and the slider cambered surface form a first steel ball running ball way; the dustproof sheet is characterized in that a slide rail inclined plane is arranged on the slide rail, and a first contact point and a second contact point on the dustproof sheet are respectively contacted with the slide rail inclined plane.

The utility model discloses still further set up to: the upper retainer is installed on the plane of the top of the sliding rail, and the side face of the upper retainer and the sliding block arc face of the sliding block body form a second steel ball running channel.

The utility model discloses still further set up to: a first clamping groove is formed in the upper retainer, a silencing strip is arranged in the first clamping groove, and a silencing strip gear is fixedly arranged on the upper retainer; the upper retainer is mounted on an outer return, the outer return is provided with a second slot, and the end of the silencing strip facing away from the upper retainer is inserted into the aligned second slot.

The utility model discloses still further set up to: the silencing strip is formed by combining a steel sheet and rubber, a silencing contact in contact with the sliding rail is arranged on the silencing strip, and the silencing contact is in plane contact with the top of the sliding rail.

The utility model discloses still further set up to: and a fastening screw is arranged between the outer returning device and the oil scraping sheet, and the outer returning device and the oil scraping sheet are fixed on the sliding block body through the fastening screw.

The utility model has the advantages that: the utility model has reasonable structure, the oil circuit in the outer returner is communicated with the oil circuit in the inner returner to form a returner oil circuit system, the structure is simple, the processing is easy, the lubricating oil is added to the steel balls more smoothly, and the lubricating oil is added to each steel ball without omission, thereby solving the problems that the existing returner is difficult to add the lubricating oil to the steel balls and the existing returner is easy to block when the lubricating oil is added to the steel balls; the dustproof sheet is contacted with the sliding block, the silencing strip is contacted with the sliding rail, and the oil scraping sheets assembled at two ends of the sliding block are contacted with the sliding rail, so that 6 surfaces seal the inside of the sliding block to form a closed space, and the silencing effect is achieved; the utility model discloses possessed the lubricated improvement slider life structure of slider, possessed the steel ball of dustproof function simultaneously and kept the integrated configuration, possessed the steel sheet structure of falling the sound function, the practicality is good.

The invention is further described with reference to the drawings and the specific embodiments.

Drawings

FIG. 1 is a first diagram of a prior art structure;

FIG. 2 is a schematic diagram of a prior art structure;

FIG. 3 is an exploded schematic view of the prior art;

FIG. 4 is a schematic structural diagram of an embodiment of the present invention;

FIG. 5 isbase:Sub>A schematic cross-sectional view of A-A in FIG. 4;

FIG. 6 is a first schematic view of a partial structure according to an embodiment of the present invention;

fig. 7 is a schematic view of a partial structure according to an embodiment of the present invention;

fig. 8 is a schematic view of a closed circular lane according to an embodiment of the present invention;

fig. 9 is a schematic view of a partial structure of the embodiment of the present invention;

fig. 10 is a schematic view of a partial structure of the embodiment of the present invention;

fig. 11 is a schematic diagram of a partial explosion according to an embodiment of the present invention;

FIG. 12 is a schematic view showing the assembly of the lower retainer and the dust-proof sheet according to the embodiment of the present invention;

fig. 13 is a partial schematic structural view of a lower retainer according to an embodiment of the present invention;

fig. 14 is a schematic view of a partial structure of an embodiment of the present invention;

FIG. 15 is a schematic view of the assembly of the upper retainer and the silencing bar according to the embodiment of the present invention;

fig. 16 is a schematic structural diagram of a silent strip according to an embodiment of the present invention;

fig. 17 is a schematic structural view of an upper retainer according to an embodiment of the present invention;

fig. 18 is a schematic structural view of a dust-proof sheet according to an embodiment of the present invention.

Detailed Description

In the description of the present embodiment, it should be noted that, as the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", "front", "rear", etc. appear, the indicated orientation or positional relationship thereof is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" as appearing herein are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Referring to fig. 4-18, the utility model discloses a multifunctional linear slider combined structure, including slider 10 and slide rail 20, slider 10 includes slider body 1, outer returner 2, oil scraping plate 3, lower retainer 4, dustproof sheet 5, steel ball 6, upper retainer 7, inner returner 9, glib talker 11 and silence strip 8; a plurality of steel ball outer ball channel holes and a plurality of steel ball inner ball channels are formed in the slider body 1, and at least 8 linear ball channels 601 are formed after the steel ball outer ball channel holes are communicated with the steel ball inner ball channels;

an inner arc lane 210 is arranged in the outer returner 2, an outer arc lane 901 is arranged on the inner returner 9, and the inner arc lane 210 and the outer arc lane 901 are combined to form a semi-arc lane 603;

an upper steel ball lane 2001 and a lower steel ball lane 2002 are arranged on the slide rail 20, the upper steel ball lane 2001 is communicated with the lower steel ball lane 2002, and steel balls 6 are arranged in the upper steel ball lane 2001 and the lower steel ball lane 2002; preferably, at least 2 upper ball tracks 2001 and at least 2 lower ball tracks 2002 are milled out of the slide rail 20 and run through the slide rail; when the slide block moves, the steel balls are respectively attached to the ball track 2001 and the ball track 2002 and roll;

an oil filling port 205 is formed in the outer returner 2, a linear oil way 206 is formed in the position, located inside the oil filling port, of the outer returner 2, and the oil filling port 205 is communicated with the oil nozzle 11; the inner returning device 9 is internally provided with a white seed oil intersection 902, an upper oil storage grid 2091, a lower oil storage grid 2092 and a connecting oil path 208, and the upper oil storage grid 2091 is communicated with the lower oil storage grid 2092 through the connecting oil path 208. Preferably, an oil port 903 is further arranged on the inner returning device 9, the lubricating oil enters the returning device through the oil nozzle 11, the lubricating oil enters the upper oil storage grid 2091 and the lower oil storage grid 2092 through the linear oil path 206 and the white seed oil path opening 902, and the lubricating oil enters the steel balls through the oil path opening 903, so that lubrication is achieved.

The upper oil storage case 2091 and the lower oil storage case 2092 are communicated through the connecting oil passage 208 to form a communicated oil passage. The lubricating oil way system of the returner has reasonable structural design and good lubricating function.

Preferably, at least 4 inner arc ball tracks 210 are arranged in the outer return device 2, and two ends of each inner arc ball track 210 are respectively combined with the outer ball track hole 901 and the inner ball track of the slider body 1 to form a closed annular ball track 60. When the slide block runs, the steel ball 6 circularly rolls in the annular ball path.

The lower retainer 4 is provided with a dustproof sheet slot, and a dustproof sheet 5 is inserted in the dustproof sheet slot; the middle of the dustproof sheet 5 is fixedly provided with a steel sheet 503, and the dustproof sheet 5 is fixedly provided with 2 first contact points 501 and second contact points 502 which are in contact with the sliding rail.

The lower holder 4 is mounted on the outer return device 2, the lower holder 4 is fixedly provided with a plug-in part 401, the outer return device 2 is provided with a plug-in groove 202, and the plug-in part 401 is plugged in the aligned plug-in groove 202.

The lower retainer 4 is provided with a retainer cambered surface 403, the slider body 1 is provided with a slider cambered surface, and the retainer cambered surface 403 and the slider cambered surface form a first steel ball running ball way; a slide rail inclined plane 2003 is arranged on the slide rail, and the first contact point 501 and the second contact point 502 on the dustproof sheet 5 are respectively contacted with the slide rail inclined plane 2003, so that a dustproof and mute effect is formed.

The upper retainer 7 is installed on the top plane of the sliding rail, and the side face of the upper retainer 7 and the sliding block cambered surface of the sliding block body 1 form a second steel ball running channel.

A first clamping groove 701 is formed in the upper retainer 7, a silencing strip 8 is arranged in the first clamping groove 701, and a silencing strip gear 702 is fixedly arranged on the upper retainer 7; the upper holder 7 is mounted on the outer return 2, a second catch groove 203 is provided on the outer return 2, and the end of the sound-damping strip 8 facing away from the upper holder is inserted into the aligned second catch groove 203. Preferably, the end face 404 of the lower holder 4 and the dust-proof piece are fitted to the upper surface 201 of the outer return unit 2 so as not to fall off during the movement of the slider after the lower holder and the dust-proof piece are fitted.

The mute strip 8 is formed by combining a steel sheet 801 and rubber 802, a mute contact 803 in contact with a slide rail is arranged on the mute strip 8, and the mute contact 803 is in plane contact with the top of the slide rail, so that a dustproof mute effect is formed, and the dustproof mute system is reasonable in functional structure design.

A fastening screw is arranged between the outer returning device 2 and the oil scraping sheet 3, and the outer returning device 2 and the oil scraping sheet 3 are fixed on the sliding block body 1 through the fastening screw.

The working principle is as follows:

the working principle of the lubricating system is as follows:

1, steel balls arranged in a sliding block 10 circularly roll in a closed annular ball path 60 and simultaneously roll along an upper steel ball path 2001 and a lower steel ball path 2002 of a sliding rail;

2, the oil nozzle 11 is arranged on the oil filling port 205, lubricating oil is injected from the outside to enter the oil filling port 205, and the lubricating oil enters a linear oil way 206 of the return device through the oil filling port 205;

3, the lubricating oil flows into the white seed oil intersection 902 through the linear oil path 206 and enters the upper oil storage grid 2091 and the lower oil storage grid 2092 through the white seed oil path 902;

4, when the upper oil storage grid 2091 and the lower oil storage grid 2092 are full of oil, the oil flows into the steel balls 6 through the oil passage opening 903, and when the sliding block moves, the lubricating oil sequentially adds the lubricating oil to the steel balls through the oil passage opening 903.

5, when the oil storage grid at the upper end of the white seed is filled with lubricating oil, the upper oil storage grid 2091 and the lower oil storage grid 2092 are communicated through the connecting oil way 208, so that a communicated oil way is formed. Through the oil injection principle, lubricating oil is added to each steel ball in the sliding block, so that the purpose of adding the lubricating oil to the sliding block is achieved.

And 6, the returner is communicated with the oil way of the returner body through the oil way of the returner body to form a returner oil way system, so that lubricating oil is added to the steel balls more smoothly, lubricating oil is not added to each steel ball in an omitted manner, the problem that the traditional returner is difficult to add lubricating oil to the steel balls is solved, and the problem that the traditional returner is easy to block when lubricating oil is added to the steel balls is solved.

The working principle of the dustproof mute system is as follows:

1, after a lower retainer 4 and a dustproof sheet 5 are installed, a retainer cambered surface 403 and a slider cambered surface form a first steel ball running ball way, and a lower side ball is retained in the ball way by the lower retainer 4 and does not fall off;

2, the dustproof sheet 5 is arranged in the clamping groove of the lower retainer 4, and in the actual installation process, the dustproof sheet 5 can adjust the installation position of the dustproof sheet 5 back and forth along the linear adjustment direction, so that the first contact point 501 and the second contact point 502 are ensured to be in contact with the slide rail inclined plane 2003.

3, the dustproof sheet 5 is arranged on the lower retainer 4, and a first contact point 501 and a second contact point 502 on the dustproof sheet 5 are in contact with the inclined surface 203 on the slide rail 20, so that the dustproof sheet has the function of preventing fine substances such as splashed scrap iron and dust from entering a ball path and has a protection function on dust prevention;

4, the first contact point 501 and the second contact point 502 are in contact with the inclined plane 2003 on the slide rail 20, so that not only is the dustproof effect achieved, but also the slide block and the slide rail are prevented from being clamped by a dustproof sheet.

5, the dustproof sheet 5 is contacted with the inclined plane 2003 of the sliding rail, the silencing strip 8 is contacted with the top plane 2004 of the sliding rail, and the oil scraping sheets assembled at the two ends of the sliding block are contacted with the sliding rail, so that 6 surfaces seal the inside of the sliding block to form a closed space, and the silencing effect is achieved.

The utility model has the advantages that: lubricating oil can be smoothly added to each steel ball in the sliding block; the oil way is not blocked in the process of adding the lubricating oil, and the phenomenon that the lubricating oil is injected into the non-entering sliding block is avoided; the utilization rate of the lubricating oil can be effectively improved, and the waste of the lubricating oil is reduced; each part of the returning device is easy to be injection molded and easy to be processed and realized; the installation convenience of the lower retainer and the outer returning device is improved;

the dustproof sheet is as an independent individual part, is formed by steel sheet and plastic part combination all around in the dustproof sheet, and it has two part integrated configuration of steel sheet and plastic part to compare with dustproof sheet in the traditional scheme, and this project organization is succinct more practical. The steel sheet can block impurities such as harder iron chips in splashes in the sliding block running environment in the structure, and the plastic part can block impurities such as dust flying in the sliding block running environment by sticking the plastic part to the inclined plane of the sliding rail.

In practical application, an oil way in the outer returner is communicated with an oil way in the inner returner to form a returner oil way system, the structure is simple, the processing is easy, lubricating oil is added to the steel balls more smoothly, and lubricating oil is not added to each steel ball in an omission manner, so that the problems that the existing returner is difficult to add lubricating oil to the steel balls and the existing returner is easy to block when the lubricating oil is added to the steel balls are solved; the dustproof sheet is contacted with the sliding block, the silencing strip is contacted with the sliding rail, and the oil scraping sheets assembled at two ends of the sliding block are contacted with the sliding rail, so that 6 surfaces seal the inside of the sliding block to form a closed space, and a silencing effect is achieved; the utility model discloses possessed the lubricated improvement slider life structure of slider, possessed the steel ball of dustproof function simultaneously and kept the integrated configuration, possessed the steel sheet structure of falling the sound function, the practicality is good.

The above-mentioned embodiment is right the utility model specifically describes, only is used for going on further the explanation to the utility model, can not understand right the utility model discloses the limited of scope of protection, and technical engineer in this field is right according to above-mentioned utility model's content the utility model discloses make some non-essential improvements and adjustment all fall into within the scope of protection of the utility model.

Claims (9)

1. The utility model provides a multi-functional linear slider integrated configuration, includes slider (10) and slide rail (20), its characterized in that: the sliding block (10) comprises a sliding block body (1), an outer returning device (2), an oil scraping sheet (3), a lower retainer (4), a dustproof sheet (5), steel balls (6), an upper retainer (7), an inner returning device (9), an oil nozzle (11) and a silencing strip (8); a plurality of steel ball outer ball channel holes and a plurality of steel ball inner ball channels are formed in the slider body (1), and at least 8 linear ball channels (601) are formed after the steel ball outer ball channel holes and the steel ball inner ball channels are communicated;

an inner arc-shaped ball path (210) is arranged in the outer returner (2), an outer arc-shaped ball path (901) is arranged on the inner returner (9), and the inner arc-shaped ball path (210) and the outer arc-shaped ball path (901) are combined to form a semi-arc ball path (603);

an upper steel ball lane (2001) and a lower steel ball lane (2002) are arranged on the sliding rail (20), the upper steel ball lane (2001) is communicated with the lower steel ball lane (2002), and steel balls (6) are arranged in the upper steel ball lane (2001) and the lower steel ball lane (2002);

an oil filling port (205) is formed in the outer returner (2), a linear oil way (206) is formed in the position, located inside the oil filling port, of the outer returner (2), and the oil filling port (205) is communicated with the oil nozzle (11); the internal returning device (9) is internally provided with a white seed oil intersection (902), an upper oil storage grid (2091), a lower oil storage grid (2092) and a connecting oil way (208), and the upper oil storage grid (2091) is communicated with the lower oil storage grid (2092) through the connecting oil way (208).

2. The multifunctional linear slider combined structure according to claim 1, wherein: at least 4 inner arc ball tracks (210) are arranged in the outer returning device (2), and two ends of each inner arc ball track (210) are respectively combined with an outer ball track hole of the sliding block body (1) and an inner ball track of the steel ball to form a closed annular ball track (60).

3. The multifunctional linear slider combined structure as claimed in claim 2, wherein: a dustproof sheet slot is formed in the lower retainer (4), and a dustproof sheet (5) is inserted in the dustproof sheet slot; the middle of the dustproof sheet (5) is fixedly provided with a steel sheet (503), and the dustproof sheet (5) is fixedly provided with 2 first contact points (501) and second contact points (502) which are in contact with the sliding rail.

4. The multifunctional linear slider combined structure according to claim 3, wherein: the lower retainer (4) is mounted on the outer return device (2), the lower retainer (4) is fixedly provided with an inserting portion (401), the outer return device (2) is provided with an inserting groove (202), and the inserting portion (401) is inserted into the aligned inserting groove (202).

5. The multifunctional linear slider combined structure according to claim 4, wherein: a retainer cambered surface (403) is arranged on the lower retainer (4), a slider cambered surface is arranged on the slider body (1), and the retainer cambered surface (403) and the slider cambered surface form a first steel ball running ball channel; the sliding rail is provided with a sliding rail inclined surface (2003), and a first contact point (501) and a second contact point (502) on the dustproof sheet (5) are respectively contacted with the sliding rail inclined surface (2003).

6. The multifunctional linear slider combined structure as claimed in claim 5, wherein: the upper retainer (7) is installed on the plane of the top of the sliding rail, and the side face of the upper retainer (7) and the sliding block cambered surface of the sliding block body (1) form a second steel ball running channel.

7. The multifunctional linear slider combined structure as claimed in claim 6, wherein: a first clamping groove (701) is formed in the upper retainer (7), a silent strip (8) is arranged in the first clamping groove (701), and a silent strip gear (702) is fixedly arranged on the upper retainer (7); the upper retainer (7) is mounted on the outer reflector (2), a second clamping groove (203) is formed in the outer reflector (2), and the end, deviating from the upper retainer, of the silencing strip (8) is inserted into the aligned second clamping groove (203).

8. The multifunctional linear slider combined structure according to claim 7, wherein: the mute strip (8) is formed by combining a steel sheet and rubber, a mute contact (803) in contact with the sliding rail is arranged on the mute strip (8), and the mute contact (803) is in plane contact with the top of the sliding rail.

9. The multifunctional linear slider combined structure according to claim 8, wherein: and a fastening screw is arranged between the outer returning device (2) and the oil scraping sheet (3), and the outer returning device (2) and the oil scraping sheet (3) are fixed on the sliding block body (1) through the fastening screw.

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