Roller linear guide rail pair for numerical control machine tool

Abstract

The utility model relates to a roller linear guide rail pair for a numerical control machine tool. The technical problem to be solved by the utility model is to provide the roller linear guide rail pair for the numerical control machine tool, which is long in service life. According to the technical scheme, the sliding block comprises a guide rail, a sliding block body, a pin roller assembly, a pin roller reverser, an end cover assembly and a pneumatic connector, the end cover assembly comprises an inner sealing plate, sponge and an outer scraper which are arranged outside the pin roller reverser in a covering mode, the outer scraper is provided with an outer scraper sliding opening, an outer scraper embedding groove is formed in the outer scraper, and the pneumatic connector is arranged in the outer scraper embedding groove. The outer scraping plate is provided with a dust guiding groove, a sponge adsorption opening is formed in the middle of the dust guiding groove, a sponge positioning groove is formed in the outer scraping plate embedding groove, and the sponge is arranged in the sponge positioning groove and the sponge adsorption opening through the outer scraping plate inserting opening. The utility model has the advantages that the sponge is arranged in the end cover, and dust and foreign matters can be quickly absorbed through the dust guide groove, so that the dust and the foreign matters are effectively prevented from entering the slide block through the inner sealing plate, and the service life of the product is greatly prolonged.

Description

Technical Field

[0001] The utility model relates to a roller linear guide pair for a numerically controlled machine tool. Background Art

[0002] The roller linear guide pair is a precision guide system commonly used in CNC machine tools. It consists of guide rails, slider bodies, rollers, cages, and slider end covers. As the slider body reciprocates on the guide rail, it will stick to tiny dust and foreign matter on the guide rail. After frequent use, these dust and foreign matter will enter the slider through the gap of the slider end cover, greatly reducing the accuracy, speed, and service life of the guide rail. Therefore, further improvement is needed. Utility Model Content

[0003] In order to solve the above problems, the technical problem to be solved by the utility model is to provide a roller linear guide pair for CNC machine tools with a long service life.

[0004] The technical solution adopted by the roller linear guide pair for CNC machine tools of the utility model includes: a guide rail, a slider body, a roller assembly arranged in the slider body, roller return devices arranged at both ends of the slider body, an end cover assembly, and a pneumatic joint connected to the roller return device, characterized in that the end cover assembly includes an inner sealing plate covered outside the roller return device, a sponge and an outer scraper, the outer scraper is provided with an outer scraper sliding opening connected to the guide rail, the outer scraper is provided with an outer scraper embedding groove for embedding the inner sealing plate, the outer scraper is provided with a dust guide groove on the inner wall of the outer scraper at the outer scraper sliding opening, a sponge adsorption opening is provided in the middle of the dust guide groove, a sponge positioning groove for limiting the sponge is provided in the outer scraper embedding groove, and the sponge is placed in the sponge positioning groove and the sponge adsorption opening through an outer scraper insertion opening provided at the bottom of the outer scraper.

[0005] The cross section of the dust guiding groove is a V-shaped structure.

[0006] The four corners of the sponge are provided with sponge positioning holes, the sponge positioning groove is provided with an outer scraper docking hole communicated with the sponge positioning hole, the inner sealing plate is provided with an inner sealing plate positioning column, and the inner sealing plate positioning column passes through the sponge positioning hole and docks with the outer scraper docking hole.

[0007] The outer scraper is provided with an outer scraper upper positioning protrusion and an outer scraper lower positioning protrusion at the outer scraper sliding opening, and the two ends of the guide rail are provided with a guide rail upper positioning groove corresponding to the outer scraper upper positioning protrusion and a guide rail lower positioning groove corresponding to the outer scraper lower positioning protrusion.

[0008] An oil storage tank arranged around the sliding opening of the outer scraper is provided inside the outer scraper near the sliding opening of the outer scraper.

[0009] An outer scraper receiving platform for receiving the inner sealing plate is arranged in the outer scraper embedding groove, an outer scraper guide column is arranged on the outer scraper receiving platform, and an inner sealing plate fixing hole corresponding to the outer scraper guide column is arranged on the inner sealing plate.

[0010] The advantages of the roller linear guide pair for CNC machine tools of the utility model are: a sponge is arranged inside the end cover, which can quickly absorb dust and foreign matter through the dust duct, effectively preventing them from entering the interior of the slider through the inner sealing plate; the detachable design of the sponge facilitates subsequent maintenance and replacement, and greatly improves the service life of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0012] Figure 1 It is a partial exploded view of the roller linear guide pair for CNC machine tools of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the outer scraper of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the utility model sponge;

[0015] Figure 4 It is a structural schematic diagram of the inner sealing plate of the utility model;

[0016] Figure 5 It is the front view of the guide rail of the utility model. DETAILED DESCRIPTION

[0017] like Figure 1-5 As shown, the roller linear guide pair for CNC machine tools involved in the utility model includes a guide rail 1, a slider body 2, a roller assembly 3 arranged in the slider body 2, a roller return device 4 arranged at both ends of the slider body 2, an end cover assembly 5, and a pneumatic joint 9 connected to the roller return device 4. The end cover assembly 5 includes an inner sealing plate 6, a sponge 7 and an outer scraper 8 that cover the outside of the roller return device 4. The outer scraper 8 is provided with an outer scraper sliding opening 11 that is connected to the guide rail 1, and an outer scraper embedding groove 12 for embedding the inner sealing plate 6 is provided inside the outer scraper 8. The outer scraper 8 is provided with a plurality of outer scraper slides. A dust collecting groove 13 is provided on the inner wall of the outer scraper sliding opening 11, a sponge suction opening 14 is provided in the middle of the dust collecting groove 13, a sponge positioning groove 16 for limiting the sponge 7 is provided in the outer scraper embedding groove 12, the sponge 7 is placed in the sponge positioning groove 16 and the sponge suction opening 14 through the outer scraper insertion opening 15 provided at the bottom of the outer scraper 8, a sponge is provided in the end cover, dust and foreign matter can be quickly absorbed through the dust collecting groove, and it is effectively prevented from entering the slider through the inner sealing plate, and the detachable design of the sponge facilitates subsequent maintenance and replacement, and the service life of the product is greatly improved.

[0018] The cross section of the dust introduction groove 13 is a V-shaped structure, which can quickly and efficiently introduce impurities such as dust into the sponge 7.

[0019] The four corners of the sponge 7 are provided with sponge positioning holes 18, the sponge positioning groove 16 is provided with an outer scraper docking hole 19 which is communicated with the sponge positioning hole 18, and the inner sealing plate 6 is provided with an inner sealing plate positioning column 20, which passes through the sponge positioning hole 18 and docks with the outer scraper docking hole 19, so that the sponge 7 is accurately positioned, which prevents the sponge 7 from being misplaced due to the frequent movement of the slider, and improves the stability of product use.

[0020] The outer scraper 8 is provided with an outer scraper upper positioning protrusion 23 and an outer scraper lower positioning protrusion 24 at the outer scraper sliding opening 11, and the guide rail 1 is provided with an upper guide rail positioning groove 26 corresponding to the outer scraper upper positioning protrusion 23 and a lower guide rail positioning groove 27 corresponding to the outer scraper lower positioning protrusion 24 at both ends, so that the overall movement of the slider is stable and reliable.

[0021] An oil storage tank 29 arranged around the outer scraper sliding opening 11 is provided inside the outer scraper 8 near the outer scraper sliding opening 11. When there is too much grease on the guide rail, a part of it is absorbed by the sponge and the other part can be stored in the oil storage tank 29. When the guide rail is not lubricated enough, it can be adaptively adjusted to further improve the service life of the product.

[0022] An outer scraper receiving platform 31 for receiving the inner sealing plate 6 is provided in the outer scraper embedding groove 12 , an outer scraper guide column 32 is provided on the outer scraper receiving platform 31 , and an inner sealing plate fixing hole 33 corresponding to the outer scraper guide column 32 is provided on the inner sealing plate 6 .

[0023] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention are included in the protection scope of the present invention.

Claims

1. A roller linear guide pair for a numerically controlled machine tool, comprising a guide rail (1), a slider body (2), a roller assembly (3) arranged in the slider body (2), a roller return device (4) arranged at both ends of the slider body (2), an end cover assembly (5), and a pneumatic joint (9) connected to the roller return device (4), characterized in that: The end cover assembly (5) comprises an inner sealing plate (6) which is arranged outside the roller return device (4), a sponge (7) and an outer scraper (8); the outer scraper (8) is provided with an outer scraper sliding opening (11) which is connected to the guide rail (1); the outer scraper (8) is provided with an outer scraper embedding groove (12) for embedding the inner sealing plate (6); the outer scraper (8) is provided with a dust guide groove (13) on the inner wall of the outer scraper (8) at the outer scraper sliding opening (11); a sponge adsorption opening (14) is provided in the middle of the dust guide groove (13); a sponge positioning groove (16) for limiting the position of the sponge (7) is provided in the outer scraper embedding groove (12); the sponge (7) is placed in the sponge positioning groove (16) and the sponge adsorption opening (14) through the outer scraper insertion opening (15) provided at the bottom of the outer scraper (8).

2. The roller linear guide pair for CNC machine tools according to claim 1, characterized in that: The cross section of the dust guiding groove (13) is a V-shaped structure.

3. The roller linear guide pair for CNC machine tools according to claim 1, characterized in that: The sponge (7) is provided with sponge positioning holes (18) at four corners, the sponge positioning groove (16) is provided with an outer scraper docking hole (19) which is in communication with the sponge positioning hole (18), and the inner sealing plate (6) is provided with an inner sealing plate positioning column (20), and the inner sealing plate positioning column (20) passes through the sponge positioning hole (18) and docks with the outer scraper docking hole (19).

4. The roller linear guide pair for CNC machine tools according to claim 1, characterized in that: The outer scraper (8) is provided with an outer scraper upper positioning protrusion (23) and an outer scraper lower positioning protrusion (24) at the outer scraper sliding opening (11), and the guide rail (1) is provided with an upper guide rail positioning groove (26) corresponding to the outer scraper upper positioning protrusion (23) and a lower guide rail positioning groove (27) corresponding to the outer scraper lower positioning protrusion (24) at both ends.

5. The roller linear guide pair for CNC machine tools according to claim 1, characterized in that: An oil storage tank (29) arranged around the outer scraper sliding opening (11) is provided inside the outer scraper (8) near the outer scraper sliding opening (11).

6. The roller linear guide pair for CNC machine tools according to claim 1, characterized in that: An outer scraper receiving platform (31) for receiving the inner sealing plate (6) is provided in the outer scraper embedding groove (12), an outer scraper guide column (32) is provided on the outer scraper receiving platform (31), and an inner sealing plate fixing hole (33) corresponding to the outer scraper guide column (32) is provided on the inner sealing plate (6).

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