CN111336180A

CN111336180A - Roller guide rail pair

Info

Publication number: CN111336180A
Application number: CN202010110170.0A
Authority: CN
Inventors: 李子宁
Original assignee: Individual
Current assignee: Individual
Priority date: 2020-02-23
Filing date: 2020-02-23
Publication date: 2020-06-26

Abstract

The invention relates to the technical field of guide rails, in particular to a roller guide rail pair, which comprises a T-shaped guide rail and a slide block, wherein the T-shaped guide rail consists of an upper rectangular bar and a lower rectangular bar, the lower rectangular bar is arranged at the middle position of the bottom of the upper rectangular bar, the upper rectangular bar is provided with four equal oblique angles in the length direction, the oblique angles can be at least forty-five degrees, the upper two oblique angles and the lower two oblique angles are symmetrically arranged, the left two oblique angles and the right two oblique angles are symmetrically arranged, the upper rectangular bar is provided with at least two guide rail mounting holes which are provided with countersunk holes and penetrate through the lower rectangular bar, and the T-shaped guide rail is provided with at least one slide block.

Description

Roller guide rail pair

Technical Field

The invention relates to the technical field of guide rails, in particular to a roller guide rail pair.

Background

The existing linear guide rail, especially the ordinary grade and high grade linear guide rail, has loose parts, tight parts, loose parts before installation and no operation after installation, can hear the sound of the ball when being pushed by hand, the slide block arranged on the machine can not be debugged on site, and can only return to the factory for debugging, thus being troublesome, the slide block of the existing linear guide rail is adjusted before leaving factory, can not be adjusted in use, and can only return to the factory for tightness adjustment, thus being troublesome, most users adopt the slide block replacement mode to ensure normal operation, the small clearance can increase the friction force of the guide rail, the too large clearance can reduce the guide precision of the guide rail, most people can select the slide block with higher precision for smooth and stable operation, such as ultra-precision grade and precision grade, and the cost is much higher, when the sliding block is replaced, the whole sliding block needs to be detached, so that a plurality of parts need to be detached, and great troubles are caused.

The cross guide rail is composed of two guide rails with V-shaped roller paths, a retainer, rolling bodies and the like, the rolling bodies which are arranged in a cross mode reciprocate on the V-shaped roller path surface which is precisely ground, and the cross guide rail has the advantages that: the linear guide rail can bear loads in all directions, high-precision and stable linear motion is realized, the borne loads are far higher than that of a linear guide rail, and the reciprocating linear motion precision of the crossed guide rail is far higher than that of the linear guide rail in a limited stroke. The disadvantages are that: the effective travel of the cross guide is limited and a relatively large range of travel is not allowed as with the linear guide.

The characteristics of the M/V type linear guide rail: can realize high accuracy, steady linear motion, the load that can bear is far higher than linear guide, and the shortcoming is: the effective travel of the M/V linear guide is limited, and a relatively large travel range can be reserved unlike the linear guide. The design is a guide rail pair which can realize that a relatively large stroke range can be reserved like a linear guide rail, can realize high-precision and stable linear motion like a V-shaped guide rail, can bear loads far higher than the linear guide rail, can adjust the tightness of a sliding block according to the size of the loads on an installation site, is easy to produce, and is convenient to install, debug, maintain and replace, and becomes the current requirement.

Disclosure of Invention

The invention aims to:

the roller guide rail pair can adjust the tightness of the guide rail according to the load size at the installation site, can bear larger load, is convenient to install, debug, maintain and replace and is easy to produce.

The invention is realized by the following technical scheme:

according to one technical scheme adopted by the invention, the invention discloses a roller guide rail pair which comprises a T-shaped guide rail 1 and a sliding block 2, wherein the T-shaped guide rail is composed of an upper rectangular strip 3 and a lower rectangular strip 4, the lower rectangular strip is arranged at the middle position of the bottom of the upper rectangular strip, four equal oblique angles 5 are arranged on the upper rectangular strip in the length direction, the oblique angles can be at least forty-five degrees, the upper oblique angles and the lower oblique angles are symmetrically arranged, the left oblique angles and the right oblique angles are symmetrically arranged, at least two guide rail mounting holes 6 with countersunk holes and penetrating through the lower rectangular strip are arranged on the upper rectangular strip, and at least one sliding block is arranged on the T-shaped guide rail.

Preferably, the sliding block consists of a bearing plate 7, a concave V-shaped roller sliding block 8, a sliding block fixing bolt 9 and an adjusting screw 10, the bearing plate is door frame-shaped, the bearing plate is provided with at least two mounting threaded holes 12, two sides of the bearing plate are respectively provided with at least two symmetrical countersunk head through holes 13 and sliding block adjusting threaded holes 14, the two symmetrical concave V-shaped roller sliding blocks 8 are mounted in the bearing plate, the concave V-shaped roller sliding blocks are fixedly mounted with a sliding block mounting hole 15 and the countersunk head through holes 13 through the sliding block fixing bolt 9, and the sliding block adjusting threaded holes 14 are subjected to tightness adjustment through the adjusting screw.

Preferably, the concave V-shaped roller slider is composed of a concave V-shaped block 19, a long cylindrical ball 16, a gland 17, a gland bolt 18 and a short cylindrical ball (26), the back 11 of the concave V-shaped block is correspondingly provided with slider mounting holes 15 with the same number as the countersunk through holes 13, the front 20 of the concave V-shaped block is provided with a groove 21 with symmetrical upper and lower edges and the shape matched with the left side of the upper rectangular strip along the length direction at the middle position, two edges of the groove are respectively provided with a symmetrical and crossed ball groove 22, the middle part of the ball groove is communicated with the groove, the angle formed by the two ball grooves can be at least ninety degrees, the front and the back of the concave V-shaped block are respectively provided with a gland, the gland is fixedly mounted with the gland bolt hole 23 on the gland and the gland threaded hole 24 on the concave V-shaped block through the gland bolt 18, the gland is provided with a nozzle threaded hole 25 for installing a nozzle joint, the ball groove 22 is provided with long cylindrical balls 16 fully distributed in the ball groove, the long cylindrical balls of the upper ball groove and the long cylindrical balls of the lower ball groove are arranged in a staggered mode, each long cylindrical ball 16 is correspondingly provided with a short cylindrical ball 26 until the ball groove is fully arranged, the long cylindrical balls and the short cylindrical balls are fixed in the ball groove through the gland, after the long cylindrical balls and the short cylindrical balls are installed, the long cylindrical balls and the short cylindrical balls can rotate in the ball groove, when the device works, the cylindrical balls in the ball groove are in contact with the oblique angles on the upper rectangular strip, the larger the contact area is, the better the stress is, the better the stability of the guide rail is, and as the four oblique angles on the rectangular strip are all equal, the contact areas of the four oblique angles are equal, so that the contact areas of the four oblique angles are equal, The lower, left and right directions have equal rated loads, and the rigidity is greatly enhanced because the concave V-shaped block is a whole body and is not provided with the steel ball retainer.

The slider is arranged on the T-shaped guide rail 1, then the tightness of the slider 2 can be adjusted, firstly the concave V-shaped roller slider 8 is adjusted leftwards or rightwards through the adjusting screws 10 on the two side edges of the support plate, when the preset effect is achieved, the clearance between the inner side surface 27 and the back surface 11 can be measured through the feeler gauge, then the proper metal sheet is selected according to the data and is put into the clearance between the inner side surface and the back surface, then the slider fixing bolt is tightened, the metal sheet can be arranged in the clearance on the left side or the clearance on the right side according to the actual situation, or the left side and the right side are simultaneously arranged, if the concave V-shaped roller slider is damaged or the concave V-shaped roller slider is internally provided with dust, the whole slider does not need to be disassembled, but the concave V-shaped roller slider can be disassembled by disassembling the slider fixing bolt arranged on the side edge of the support plate, then the, if the T-shaped guide rail is broken, a supporting object can be used for propping against a part arranged on the supporting plate so as not to fall down, the front and the back are well fixed, then the concave V-shaped roller slide block arranged on the slide block is disassembled, then the T-shaped guide rail is disassembled, the T-shaped guide rail is replaced with the T-shaped guide rail, and then the concave V-shaped roller slide block is newly installed and debugged, so that the convenience in installation and maintenance is achieved.

The invention has the beneficial effects that:

1. the device can keep a relatively large stroke range like a linear guide rail, can realize high-precision and stable linear motion like a V-shaped guide rail, and can bear loads far higher than that of the linear guide rail.

2. The tightness of the sliding block can be adjusted according to the load size condition at the installation site.

3. The installation, maintenance and replacement are convenient, if the concave V-shaped roller slide block is damaged or dust exists in the concave V-shaped roller slide block, the whole slide block does not need to be detached, but the concave V-shaped roller slide block can be detached by detaching a slide block fixing bolt arranged on the side edge of the supporting plate, then the concave V-shaped roller slide block 8 can be replaced or cleaned, if the T-shaped guide rail 1 is damaged, a supporting object can be used for propping against a part arranged on the supporting plate 7 so as not to lead the part to fall down, the front and the back of the part are fixed well, then the concave V-shaped roller slide block 8 arranged on the slide block is detached, then the T-shaped guide rail 1 is detached, the T-shaped guide rail 1 which is well replaced, and then the concave V-shaped roller slide block 8 is newly installed and debugged.

4. The production is easy, special machinery is not required to be designed for production, and the production can be carried out by using equipment commonly existing in the market, such as a milling machine, a numerical control milling machine, a wire cutting machine, a grinding machine, a numerical control grinding machine and the like.

Drawings

The following describes embodiments of the present invention in further detail with reference to the accompanying drawings.

Fig. 1 is an exploded view of a roller guide pair according to an embodiment of the present invention.

FIG. 2 is an exploded view of a slider according to an embodiment of the present invention.

FIG. 3 is an exploded view of a concave V-shaped roller slider according to an embodiment of the present invention.

Wherein; 1. a T-shaped guide rail; 2. a slider; 3. arranging a rectangular strip; 4. a lower rectangular bar; 5. oblique angle; 6. a guide rail mounting hole; 7. a support plate; 8. a concave V-shaped roller slider; 9. a slider fixing bolt; 10. adjusting screws; 11. a back side; 12. installing a threaded hole; 13. countersunk through holes; 14. the slide block adjusts the screwed hole; 15. a slider mounting hole; 16. a long cylindrical ball; 17. a gland; 18. a gland bolt; 19. a concave V-shaped block; 20. a front side; 21. a groove; 22. a ball groove; 23. a gland bolt hole; 24. a gland threaded hole; 25. a nipple threaded hole; 26. a short cylindrical ball; 27. the inner side surface.

Detailed Description

The preferred embodiments of the present invention will be described in conjunction with the accompanying drawings, and it will be understood that they are described herein for the purpose of illustration and explanation and not limitation.

The roller guide rail pair shown in fig. 1 comprises a T-shaped guide rail 1 and sliding blocks 2, wherein the T-shaped guide rail is composed of an upper rectangular strip 3 and a lower rectangular strip 4, the lower rectangular strip is arranged at the middle position of the bottom of the upper rectangular strip, four equal oblique angles 5 are arranged on the upper rectangular strip in the length direction, the oblique angles can be at least forty-five degrees, the upper oblique angles and the lower oblique angles are symmetrically arranged, the left oblique angles and the right oblique angles are symmetrically arranged, at least two guide rail mounting holes 6 which are provided with countersunk holes and penetrate through the lower rectangular strip are arranged on the upper rectangular strip, and at least one sliding block is arranged on the T-shaped guide rail.

The sliding block shown in fig. 2 is composed of a supporting plate 7, a concave V-shaped roller sliding block 8, a sliding block fixing bolt 9 and an adjusting screw 10, the supporting plate is door frame-shaped, at least two mounting threaded holes 12 are arranged on the supporting plate, at least two sides of the supporting plate are respectively provided with at least two symmetrical countersunk head through holes 13 and sliding block adjusting threaded holes 14, two symmetrical concave V-shaped roller sliding blocks 8 are arranged in the supporting plate, the concave V-shaped roller sliding blocks are fixedly mounted with a sliding block mounting hole 15 and the countersunk head through holes 13 through the sliding block fixing bolt 9, and the sliding block adjusting threaded holes 14 are subjected to tightness adjustment through the adjusting screw.

The concave V-shaped roller slide block shown in figure 3 is composed of a concave V-shaped block 19, a long cylindrical ball 16, a gland 17, a gland bolt 18 group and a short cylindrical ball (26), the back 11 of the concave V-shaped block is correspondingly provided with slide block mounting holes 15 with the same number as the countersunk through holes 13, the front 20 of the concave V-shaped block is provided with a groove 21 with symmetrical upper and lower edges and the shape matched with the left edge of the upper rectangular strip along the length direction at the middle position, two edges of the groove are respectively provided with a symmetrical and crossed ball groove 22, the middle part of the ball groove is communicated with the groove, the angle formed by the two ball grooves can be at least ninety degrees, the front and the back of the concave V-shaped block are respectively provided with a gland, the gland is fixedly mounted with a gland bolt hole 23 on the gland and a gland threaded hole 24 on the concave V-shaped block through the gland bolt 18, the gland is provided with a nozzle threaded hole 25 for installing a nozzle joint, the ball groove 22 is provided with long cylindrical balls 16 fully distributed in the ball groove, the long cylindrical balls of the upper ball groove and the long cylindrical balls of the lower ball groove are arranged in a staggered mode, each long cylindrical ball 16 is correspondingly provided with a short cylindrical ball 26 until the ball groove is fully arranged, the long cylindrical balls and the short cylindrical balls are fixed in the ball groove through the gland, after the long cylindrical balls and the short cylindrical balls are installed, the long cylindrical balls and the short cylindrical balls can rotate in the ball groove, when the device works, the cylindrical balls in the ball groove are in contact with the oblique angles on the upper rectangular strip, the larger the contact area is, the better the stress is, the better the stability of the guide rail is, and as the four oblique angles on the rectangular strip are all equal, the contact areas of the four oblique angles are equal, so that the contact areas of the four oblique angles are equal, The lower, left and right directions have equal rated loads, and the rigidity is greatly enhanced because the concave V-shaped block is a whole body and is not provided with the steel ball retainer.

The slider is arranged on a T-shaped guide rail 1 as shown in figures 1, 2 and 3, then the tightness of the slider 2 can be adjusted, firstly the concave V-shaped roller slider 8 is adjusted leftwards or rightwards through adjusting screws 10 at two side edges of a support plate, when a preset effect is achieved, a clearance between an inner side surface 27 and a back surface 11 can be measured through a feeler gauge, then a proper metal sheet is selected according to data to be placed in the clearance between the inner side surface and the back surface, then a slider fixing bolt is tightened, the metal sheet can be arranged in the clearance at the left side or the clearance at the right side or the left side and the right side simultaneously, if the concave V-shaped roller slider is damaged or dust exists in the concave V-shaped roller slider, the whole slider does not need to be detached, but the concave V-shaped roller slider can be detached by detaching a slider fixing bolt 9 arranged at the side edge of the support plate, then the concave V-shaped roller slide block 8 can be replaced or cleaned, if the T-shaped guide rail is broken, a supporting object can be used for propping against a part arranged on the supporting plate so that the part does not fall down, the front and the back are well fixed, then the concave V-shaped roller slide block arranged on the slide block is disassembled, the T-shaped guide rail is replaced with the T-shaped guide rail, and then the concave V-shaped roller slide block is newly arranged and debugged, so that the convenience in installation and maintenance is achieved.

While the invention has been described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention.

Claims

1. The roller guide rail pair comprises a T-shaped guide rail (1) and a sliding block (2), and is characterized in that: t shape guide rail constitute by last rectangle strip (3), lower rectangle strip (4), lower rectangle strip install on the intermediate position of the bottom of last rectangle strip, last rectangle strip be provided with four equal oblique angles (5) on length direction, the oblique angle can be forty-five degrees angles at least to two oblique angles above and two oblique angle symmetries below set up, two oblique angles on the left side and two oblique angle symmetries on the right set up, last rectangle strip on be provided with two at least guide rail mounting hole (6) that have the counter sink to run through lower rectangle strip, T shape guide rail on be provided with at least one slider.

2. A roller guide pair according to claim 1, wherein: the sliding block is composed of a supporting plate (7), concave V-shaped roller sliding blocks (8), sliding block fixing bolts (9) and adjusting screws (10), the supporting plate is door frame-shaped, at least two mounting threaded holes (12) are formed in the supporting plate, at least two sides of the supporting plate are respectively provided with at least two symmetrical countersunk head through holes (13) and sliding block adjusting threaded holes (14), two symmetrical concave V-shaped roller sliding blocks (8) are mounted in the supporting plate, the concave V-shaped roller sliding blocks (8) are fixedly mounted with the sliding block mounting holes (15) and the countersunk head through holes (13) through the sliding block fixing bolts (9), and the adjusting screws (10) are used for tightness adjustment on the sliding block adjusting threaded holes (14).

3. A roller guide pair according to claim 2, wherein: the concave V-shaped roller sliding block is composed of a concave V-shaped block (19), a long cylindrical ball (16), a gland (17), a gland bolt (18) and a short cylindrical ball (26), sliding block mounting holes (15) with the same number as the countersunk through holes (13) are correspondingly formed in the back face (11) of the concave V-shaped block, a groove (21) with the upper and lower symmetrical edges and the shape matched with the left side of the upper rectangular strip is formed in the middle position of the front face (20) of the concave V-shaped block in the length direction, symmetrical and intersected ball grooves (22) are respectively formed in the two edges of the groove, the middle part of each ball groove is communicated with the groove, the angle formed by the two ball grooves can be at least ninety degrees, a gland (17) is respectively arranged in the front face and the back face of the concave V-shaped block (19), and the gland is connected with a bolt hole (23) in the gland through the gland bolt (18), The oil nozzle joint is characterized in that a gland threaded hole (24) in the concave V-shaped block (19) is fixedly installed, an oil nozzle threaded hole (25) for installing an oil nozzle joint is formed in the gland, long cylindrical balls (16) which are fully distributed in a ball groove are arranged in the ball groove (22), the long cylindrical balls in the upper ball groove and the long cylindrical balls in the lower ball groove are arranged in a staggered mode, each long cylindrical ball (16) is correspondingly provided with a short cylindrical ball (26) until the ball groove is fully arranged, the long cylindrical balls and the short cylindrical balls are fixed in the ball groove through the gland (17), and after the long cylindrical balls and the short cylindrical balls are installed, the long cylindrical balls and the short cylindrical balls can rotate in the ball groove.