T-shaped internal circulation type rolling linear sliding rail pair

Abstract

The utility model provides a T-shaped internal circulation type rolling linear sliding rail pair which comprises a sliding rail and a plurality of sliding blocks arranged on the sliding rail in a movable mode, and return assemblies are arranged at the two ends of each sliding block. A return rail is arranged in the sliding block, a rail groove is formed in the upper portion of the sliding rail, a groove body is formed in the lower portion of the sliding block and matched with the rail groove to form a bearing rail, the return rail and the bearing rail are both communicated with the return assembly to form a circulation structure, and a plurality of steel balls are movably arranged in the circulation structure. When the sliding block runs, the steel ball enters the sliding block reversing channel through the same side of the reverser on the tracks on the two sides of the sliding rail in a steering mode and then returns to the tracks of the sliding rail through the reverser at the other end, the reversing structure is simple and efficient, the size is small, the bearing capacity is high, and meanwhile certain dustproof performance is achieved.

Description

Technical Field

[0001] This utility model relates to the field of linear guide rail technology, and more specifically to a T-shaped internal circulation rolling linear guide rail pair. Background Technology

[0002] Linear guides are used in high-precision or high-speed linear reciprocating motion applications and can withstand a certain amount of torque. They can achieve high-precision linear motion under high loads. The working principle can be understood as a rolling guide, in which steel balls roll and circulate infinitely between the slider and the guide rail, thereby enabling the load platform to move easily and linearly along the guide rail with high precision. The coefficient of friction is reduced to one-fiftieth of that of traditional sliding guides, which can easily achieve very high positioning accuracy. However, traditional linear guides have certain defects, such as an unreasonable return mechanism, which leads to increased friction between steel balls and between steel balls and the inner core when the steel balls switch channels, affecting the operation and lubrication of the linear guide. Utility Model Content

[0003] One advantage of this invention is that it provides a T-shaped internal circulation rolling linear guide rail pair. When the slider is running, the steel balls on both sides of the guide rail are turned by the return mechanism on the same side and enter the slider return channel, then return to the guide rail track via the other end return mechanism. The return structure is simple and efficient, small in size, high in load-bearing capacity, and also has a certain degree of dustproof performance. The end-control unit design between the slider and the guide rail allows the linear guide rail to simultaneously bear loads in all directions, including up, down, left, and right. The return system and simplified structural design result in smoother and lower-noise movement of the linear guide rail.

[0004] To achieve at least one of the advantages of this utility model, this utility model provides a T-shaped internal circulation rolling linear slide rail pair, including a slide rail and a plurality of sliders movably disposed on the slide rail. Both ends of the sliders are provided with return components. A return track is provided inside the sliders. A rail groove is provided on the upper part of the slide rail. A groove is provided on the lower part of the sliders and cooperates with the rail groove to form a bearing track. The return track and the bearing track are both connected to the return components to form a circulation structure. A plurality of steel balls are movably disposed inside the circulation structure.

[0005] To achieve at least one of the above advantages of this utility model, the return component includes an end cap, an inner core is detachably disposed inside the end cap, the end cap is detachably fixed to both ends of the slider, and the inner core is located between the end cap and the slider.

[0006] To achieve at least one of the above advantages of this utility model, a return groove is provided at the end of the end cap facing the slider, and an arc surface adapted to the return groove is provided at the end of the inner core facing the end cap. The return groove and the arc surface form a return pipe, and the upper and lower ends of the return pipe are respectively connected to the return track and the bearing track.

[0007] To achieve at least one of the advantages of this utility model, the lower part of the end cap is provided with a protrusion that matches the rail groove.

[0008] To achieve at least one of the above advantages of this utility model, an oil passage is provided on the end cap, the oil passage is connected to the circulation structure, and an oil nozzle is provided on the outer end of the oil passage in a detachable manner.

[0009] To achieve at least one of the above advantages of this utility model, the end of the slider is provided with several positioning holes, and the end of the inner core facing the slider is provided with several positioning shafts. The positioning shafts are all installed inside the positioning holes in an insert manner so that the inner core and the slider are positioned relative to each other.

[0010] To achieve at least one of the above advantages of this utility model, the end of the slider is provided with a fifth bolt hole, the inner core is provided with a fourth bolt hole, and the end cap is provided with a third bolt hole.

[0011] It also includes a first connecting bolt, which passes through the third bolt hole, the fourth bolt hole and the fifth bolt hole in sequence and is connected in an engaging manner to fix the end cap, inner core and slider together.

[0012] The end of the slider is also provided with a second bolt hole, and the end cap is provided with a first bolt hole through it;

[0013] It also includes a second connecting bolt, which passes through the first bolt hole and the second bolt hole in sequence and is connected in an engaging manner to fix the end cap and the slider together.

[0014] To achieve at least one of the advantages of this utility model, the slide rail is provided with several through holes, and mounting bolts are provided in the through holes in a detachable manner. Attached Figure Description

[0015] Figure 1 This is an exploded view of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of this utility model;

[0017] Figure 3 This is a partial cross-sectional view of the present invention. Figure 1 ;

[0018] Figure 4 This is a partial cross-sectional view of the present invention. Figure 2 ;

[0019] In the attached diagram: 1. Slide rail, 2. Through hole, 3. Mounting bolt, 4. Steel ball, 5. Oil nozzle, 6. Connecting bolt, 7. End cap, 8. Inner core, 9. Slider, 10. First bolt hole, 11. Fourth bolt hole, 12. Third bolt hole, 13. Second bolt hole, 14. Return rail, 15. Fifth bolt hole, 16. Positioning hole, 17. Positioning pin, 18. Return groove, 19. Curved surface, 20. Rail groove. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clearer, the following description will be provided in conjunction with the appendix of this utility model. Figure 1 ~Attached Figure 4 The present invention will be described in more detail below.

[0021] The following description is intended to disclose the present invention so that those skilled in the art can implement it. The preferred embodiments described below are merely examples, and other obvious variations will occur to those skilled in the art. The basic principles of the present invention defined in the following description can be applied to other embodiments, modifications, improvements, equivalents, and other technical solutions that do not depart from the spirit and scope of the present invention.

[0022] Those skilled in the art should understand that, in the disclosure of this specification, the terms "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the above terms should not be construed as limitations on this utility model.

[0023] It is understood that the term "a" should be understood as "at least one" or "one or more", that is, in one embodiment, the number of an element can be one, while in another embodiment, the number of the element can be multiple, and the term "a" should not be understood as a limitation on the number.

[0024] This utility model provides a T-shaped internal circulation rolling linear slide rail pair, including a slide rail 1 and several sliders 9 movably disposed on the slide rail 1. Each slider 9 has a return component at both ends. A return track 14 is provided inside each slider 9. A rail groove 20 is provided on the upper part of the slide rail 1, and a groove is provided on the lower part of each slider 9, which cooperates with the rail groove 20 to form a bearing track. Both the return track 14 and the bearing track are connected to the return components to form a circulation structure. Several steel balls 4 are movably disposed inside the circulation structure. The return component... The system includes an end cap 7, inside which an inner core 8 is detachably disposed. The end cap 7 is detachably fixed to both ends of the slider 9, and the inner core 8 is located between the end cap 7 and the slider 9. A return groove 18 is provided at the end of the end cap 7 facing the slider 9, and an arc surface 19 adapted to the return groove 18 is provided at the end of the inner core 8 facing the end cap 7. The return groove 18 and the arc surface 19 form a return pipe, and the upper and lower ends of the return pipe are respectively connected to the return track 14 and the carrying track. A protrusion adapted to the track groove 20 is provided at the lower part of the end cap 7. The end cap 7 is provided with... It has an oil passage that connects to a circulation structure. An oil nozzle 5 is detachably installed at the outer end of the oil passage. The end of the slider 9 has several positioning holes 16. The end of the inner core 8 facing the slider 9 has several positioning pins 17, all of which are inserted into the positioning holes 16 to position the inner core 8 relative to the slider 9. The end of the slider 9 has a fifth bolt hole 15. A fourth bolt hole 11 is provided through the inner core 8, and a third bolt hole 12 is provided through the end cap 7. It also includes a first connecting bolt 6. 6 passes through the third bolt hole 12, the fourth bolt hole 11 and the fifth bolt hole 15 in sequence and is connected in an engaging manner to fix the end cover 7, the inner core 8 and the slider 9; the end of the slider 9 is also provided with a second bolt hole 13, and the end cover 7 is provided with a first bolt hole 10; it also includes a second connecting bolt 6, which passes through the first bolt hole 10 and the second bolt hole 13 in sequence and is connected in an engaging manner to fix the end cover 7 and the slider 9; the slide rail 1 is provided with several through holes 2, and the through holes 2 are provided with mounting bolts 3 in a detachable manner.

[0025] The first embodiment of this utility model is as follows:

[0026] A T-shaped internal circulation rolling linear slide rail pair includes a slide rail 1, which has a U-shaped structure and includes a base plate and vertical plates located on both sides of the base plate. The upper part of the vertical plates is provided with a rail groove 20, and the extension direction of the rail groove 20 is the same as the extension direction of the slide rail 1. The base plate is provided with several through holes 2, and mounting bolts 3 are detachably installed in the through holes 2. The linear slide rail pair can be installed in a predetermined position by means of the mounting bolts 3.

[0027] Several sliders 9 are movably arranged on the slide rail 1. The sliders 9 can move back and forth. A number of sliders 9 can be installed according to the actual situation. Two return rails 14 are provided inside the slider 9. The lower part of the slider 9 is provided with a groove and cooperates with the rail groove 20 to form a bearing rail.

[0028] The return assembly includes an end cap 7, inside which an inner core 8 is detachably mounted. Three positioning holes 16 are provided at the end of the slider 9. Three positioning pins 17 are provided at the end of the inner core 8 facing the slider 9. The positioning pins 17 are inserted into the positioning holes 16 to ensure relative positioning of the inner core 8 and the slider 9. This prevents the inner core from slightly shifting due to vibration or impact during long-term use, thus eliminating the possibility of the edge of the inner core colliding with the steel ball due to slight displacement. The end cap 7 is detachably fixed to both ends of the slider 9. The inner core 8 is located between the end cap 7 and the slider 9. A return groove 18 is provided at the end of the end cap 7 facing the slider 9, and an arc surface 19 adapted to the return groove 18 is provided at the end of the inner core 8 facing the end cap 7. The return groove 18 and the arc surface 19 form the return tube. The return pipe is connected to the return track 14 and the carrying track at its upper and lower ends, respectively. Both the return track 14 and the carrying track are connected to the return component to form a loop structure. Several steel balls 4 are movably arranged inside the loop structure. During the movement of the slider 9, the steel balls 4 continuously circulate inside the loop structure. The arc surface 19 and the steel balls cooperate with each other to make the steel balls turn very smoothly, eliminating the impact on the inner core when the steel balls turn. With the help of the oil passage, lubricating oil is injected into the inner core, so that the turning part of the inner core can be fully lubricated. When the slider 9 is running, the steel balls 4 turn on the same side of the return component on both sides of the slide rail 1, enter the return track of the slider 9, and then return to the carrying track through the other end of the return component. The return structure is simple and efficient, small in size, high in load capacity, and has a certain dustproof performance.

[0029] The lower part of the end cover 7 is provided with a protrusion that matches the rail groove 20. During the movement of the slider 9, the protrusion is coupled with the rail groove 20 to prevent the whole from accidentally detaching.

[0030] An oil passage is provided on the end cap 7, which is connected to the circulation structure. An oil nozzle 5 is provided on the outer end of the oil passage in a detachable manner. Lubricating oil can be replenished through the oil passage. The lubricating oil enters the circulation structure to lubricate the steel ball 4. After the oil nozzle 5 is installed, lubricating oil leakage is prevented and the seal is dustproof.

[0031] The return component and slider 9 are fixed by two connecting structures. The first connecting structure connects slider 9, inner core 8 and end cap 7 into one unit. The end of slider 9 is provided with a fifth bolt hole 15, the inner core 8 is provided with a fourth bolt hole 11, and the end cap 7 is provided with a third bolt hole 12. The first connecting bolt 6 passes through the third bolt hole 12, the fourth bolt hole 11 and the fifth bolt hole 15 in sequence and is connected in an engaging manner to fix end cap 7, inner core 8 and slider 9.

[0032] The second connecting structure connects the slider 9 and the end cap 7 into one unit. The end of the slider 9 is also provided with a second bolt hole 13, and the end cap 7 is provided with a first bolt hole 10. The second connecting bolt 6 passes through the first bolt hole 10 and the second bolt hole 13 in sequence and is connected in an engaging manner, so that the end cap 7 and the slider 9 are fixedly connected. The overall stability is ensured by fixing with multiple sets of bolts.

[0033] The return component and slider 9 are tightly connected by two connecting structures, which improves their dustproof performance.

[0034] It should be noted that the terms "first, second, and third" used in this utility model are for descriptive purposes only and do not indicate any order. They should not be construed as indicating or implying relative importance, and can be interpreted as names.

[0035] Those skilled in the art should understand that the embodiments of the present invention described above and shown in the accompanying drawings are merely examples and do not limit the present invention. The advantages of the present invention have been fully and effectively realized. The functional and structural principles of the present invention have been shown and explained in the embodiments. Without departing from the principles, the implementation of the present invention may have any modifications or variations.

Claims

1. A T-type internal circulation rolling linear guide pair, characterized in that: The device includes a slide rail and several sliders movably mounted on the slide rail. Each slider has a return component at both ends. A return track is provided inside the slider. A rail groove is provided on the upper part of the slide rail. A groove is provided on the lower part of the slider and cooperates with the rail groove to form a bearing track. The return track and the bearing track are both connected to the return component to form a loop structure. Several steel balls are movably mounted inside the loop structure.

2. The T-type internal circulation rolling linear guide pair according to claim 1, characterized in that: The return component includes an end cap, inside which an inner core is detachably disposed. The end cap is detachably fixed to both ends of the slider, and the inner core is located between the end cap and the slider.

3. The T-type internal circulation rolling linear guide pair according to claim 2, characterized in that: The end cap facing the slider has a return groove, and the end of the inner core facing the end cap has an arc surface that matches the return groove. The return groove and the arc surface form a return pipe, and the upper and lower ends of the return pipe are connected to the return track and the carrying track, respectively.

4. The T-type internal circulation rolling linear guide pair according to claim 2, characterized in that: The lower part of the end cap is provided with a protrusion that is adapted to the rail groove.

5. The T-type internal circulation rolling linear guide pair according to claim 2, characterized in that: The end cap is provided with an oil passage, which is connected to the circulation structure. An oil nozzle is provided on the outer end of the oil passage in a detachable manner.

6. The T-type internal circulation rolling linear guide pair according to claim 2, characterized in that: The slider has several positioning holes at its end, and the inner core has several positioning pins at the end facing the slider. The positioning pins are all inserted into the positioning holes to position the inner core relative to the slider.

7. The T-type internal circulation rolling linear guide pair according to claim 2, characterized in that: The slider has a fifth bolt hole at its end, the inner core has a fourth bolt hole through it, and the end cap has a third bolt hole through it. It also includes a first connecting bolt, which passes through the third bolt hole, the fourth bolt hole and the fifth bolt hole in sequence and is connected in an engaging manner to fix the end cap, the inner core and the slider. The end of the slider is also provided with a second bolt hole, and the end cap is provided with a first bolt hole through it; It also includes a second connecting bolt, which passes through the first bolt hole and the second bolt hole in sequence and is connected in an engaging manner to fix the end cap and the slider together.

8. The T-type internal circulation rolling linear guide pair according to claim 1, characterized in that: The slide rail is provided with several through holes, and mounting bolts are installed in the through holes in a detachable manner.

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