Sliding block structure of linear guide rail pair

Abstract

The utility model discloses a sliding block structure of a linear guide rail pair, which relates to the field of linear guide rail pairs and comprises a guide rail, a sliding block is sleeved on the outer wall of the guide rail, a ball groove is arranged on the inner side of the sliding block, and a lubricating mechanism is arranged on the sliding block and the ball groove. The lubricating mechanism comprises a guide unit and a transmission unit; and the guide unit is used for lubricating the ball body in the ball groove. By arranging the lubricating mechanism, when a ball body in the ball groove is lubricated, lubricating liquid enters the vertical oil groove through the ball groove, and the lubricating oil enters other ball grooves through the transverse oil groove on one side under the blocking of the limiting block; other upper-layer ball bodies are uniformly lubricated through rotation of other ball bodies, and then pressing force is applied to the pressing rod to relieve blocking of the vertical oil groove, so that lubricating oil enters the lower-layer ball groove through the vertical oil groove to uniformly lubricate the ball bodies at other positions.

Description

TECHNICAL FIELD

[0001] The utility model relates to linear guide pair field, concretely is a linear guide pair sliding block structure. BACKGROUND

[0002] Linear guide rail is also called linear rail, slide rail, linear guide rail and linear slide rail. It can be divided into three types: roller linear guide rail, cylindrical linear guide rail and ball linear guide rail. Linear guide rail is used for high-precision or high-speed linear reciprocating motion and can bear a certain torque. It can realize high-precision linear motion under high load.

[0003] In the prior art, with the use of the sliding block, the linear guide pair needs to be regularly added with lubricating oil for lubrication to reduce the friction between the sliding block and the linear guide pair and prevent wear. The existing lubricating oil is generally added through the oil groove in the sliding block to lubricate the balls. The lubricating oil flows from top to bottom and contacts the balls. Part of the lubricating oil accumulates in the oil injection hole, which is not convenient for uniformly lubricating the balls at other positions. Therefore, the utility model provides a linear guide pair sliding block structure. UTILITY MODEL CONTENT

[0004] The utility model discloses a linear guide pair sliding block structure.

[0005] To achieve the above purpose, the utility model provides the following technical scheme: a linear guide pair sliding block structure, including guide rail, the outer wall of guide rail is sleeved with sliding block, the inner side of sliding block is provided with ball groove, set up lubricating mechanism on sliding block, ball groove,

[0006] The lubricating mechanism comprises a guide unit and a transmission unit.

[0007] The guide unit is used for lubricating the ball bodies in the ball groove.

[0008] The transmission unit is used for guiding the flow of lubricating oil.

[0009] As a further scheme of the utility model: the transmission unit comprises a pressing rod, a limiting block, a guide groove and an elastic block.

[0010] The pressing rod is axially slidably installed in the interior of the sliding block and extends to the exterior of the sliding block, and the pressing rod is used for giving the limiting block a lateral moving thrust.

[0011] The limiting block is laterally slidably installed in the interior of the sliding block and extends to the interior of the vertical oil groove, and the limiting block is used for plugging the vertical flow of lubricating oil.

[0012] The guide groove is formed in the outer wall of the limiting block, and the guide groove is used for guiding the lateral movement of the limiting block.

[0013] The elastic blocks are clamped at the ends of the pressing rod and the interior of the sliding block respectively, and are used for providing a directional extrusion elastic force for the pressing rod.

[0014] As a further scheme of the utility model: the guide unit includes vertical oil grooves and horizontal oil grooves.

[0015] The vertical oil grooves are vertically arranged at the bottom of the ball groove and are communicated with another ball groove, and are used for guiding the vertical flow of lubricating oil.

[0016] The horizontal oil grooves are horizontally arranged in the interior of the sliding block, and are used for guiding the horizontal flow of lubricating oil.

[0017] As a further scheme of the utility model: the number of the vertical oil grooves is multiple, and the multiple vertical oil grooves are evenly distributed below the ball bodies in the interior of the ball groove.

[0018] As a further scheme of the utility model: the number of the ball grooves is two, and the two ball grooves are symmetrically distributed in the interior of the sliding block.

[0019] As a further scheme of the utility model: the end of the limiting block is in a circular state, and the end of the limiting block is matched with the inner wall of the vertical oil groove.

[0020] As a further scheme of the utility model: the outer wall of the guide groove is in an inclined state as a whole, and the bottom of the pressing rod is fixed with a cylindrical protrusion matched with the inner side of the guide groove.

[0021] Compared with the prior art, the utility model has the advantages that:

[0022] By setting the lubricating mechanism, when the ball bodies in the ball groove are lubricated, the lubricating liquid enters the vertical oil groove through the ball groove, and the lubricating oil enters other ball grooves through the horizontal oil groove on one side under the blockage of the limiting block, and the other upper ball bodies are uniformly lubricated through the rotation of the other ball bodies, and then the pressing force is given to the pressing rod to remove the blockage of the vertical oil groove, so that the lubricating oil enters the lower ball groove through the vertical oil groove, and the ball bodies at other positions are uniformly lubricated. BRIEF DESCRIPTION OF DRAWINGS

[0023] Fig. 1 It is a structural schematic view of the utility model;

[0024] Fig. 2 It is a sectional view of the guide rail of the utility model;

[0025] Fig. 3 It is a structural schematic view of the guide groove of the utility model.

[0026] In the figure: 1, guide rail; 2, sliding block; 3, lubricating mechanism; 301, pressing rod; 302, limiting block; 303, guide groove; 304, elastic block; 305, vertical oil groove; 306, horizontal oil groove; 4, ball groove. DETAILED DESCRIPTION

[0027] The technical solutions in the embodiments of the utility model will be clearly and completely described below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the utility model.

[0028] Please refer to Figs. 1-3 In the embodiments of the utility model, a linear guide rail pair sliding block structure comprises a guide rail 1, the outer wall of the guide rail 1 is sleeved with a sliding block 2, the inner side of the sliding block 2 is provided with a ball groove 4, and a lubricating mechanism 3 is arranged on the sliding block 2 and the ball groove 4.

[0029] The lubricating mechanism 3 comprises a guide unit and a transmission unit.

[0030] The guide unit is used for lubricating the ball bodies inside the ball groove 4.

[0031] The transmission unit is used for guiding the flow of lubricating oil.

[0032] The transmission unit comprises a pressing rod 301, a limiting block 302, a guide groove 303 and an elastic block 304.

[0033] The pressing rod 301 is axially slidably installed in the inside of the sliding block 2 and extends to the outside of the sliding block 2, and the pressing rod 301 is used for giving the limiting block 302 lateral movement thrust.

[0034] The limiting block 302 is laterally slidably installed in the inside of the sliding block 2 and extends to the inside of the vertical oil groove 305, and the limiting block 302 is used for plugging the vertical flow of lubricating oil.

[0035] The guide groove 303 is formed in the outer wall of the limiting block 302, and the guide groove 303 is used for guiding the lateral movement of the limiting block 302.

[0036] The elastic block 304 is clamped at the end of the pressing rod 301 and the inside of the sliding block 2 respectively at both ends, and the elastic block 304 is used for providing the pressing rod 301 with a directional extrusion elastic force.

[0037] The guide unit comprises a vertical oil groove 305 and a horizontal oil groove 306.

[0038] The vertical oil groove 305 is vertically arranged in the bottom of the ball groove 4 and communicates with another ball groove 4, and is used for guiding the vertical flow of the lubricating oil;

[0039] The horizontal oil groove 306 is horizontally arranged in the interior of the sliding block 2, and is used for guiding the horizontal flow of the lubricating oil.

[0040] In the embodiment, the ball groove 4 near the end of the sliding block 2 is lubricated by using the lubricating oil, the lubricating oil enters the vertical oil groove 305 arranged in the bottom of the ball groove 4 through the inner cavity of the ball groove 4, and is blocked by the limiting block 302 in the inner cavity of the vertical oil groove 305 and can only enter the horizontal oil groove 306 on one side, so that the lubricating oil entering the ball groove 4 at the end position flows to the ball groove 4 at other positions through the vertical oil groove 305 and the horizontal oil groove 306, and lubricates the balls at other positions by moving to drive the ball bodies in the ball groove 4 to rotate, and then the pressing force is given to the pressing rod 301, the pressing rod 301 under stress synchronously drives the cylindrical protrusion at the bottom to move and give the extrusion force to the guide groove 303, the guide groove 303 under stress transmits the force to the limiting block 302, the limiting block 302 moves laterally along the interior of the sliding block 2 and leaves the interior of the vertical oil groove 305, so that the lubricating oil in the ball groove 4 at the upper layer enters the ball groove 4 at the lower layer through the vertical oil groove 305, thereby lubricating the ball bodies in the ball groove 4 at the lower layer, and the purpose of lubricating the ball bodies at other positions is achieved.

[0041] Please refer to Figs. 1-3 The number of the vertical oil grooves 305 is multiple, the multiple vertical oil grooves 305 are evenly distributed below the ball bodies in the interior of the ball groove 4, the number of the ball grooves 4 is two, the two ball grooves 4 are symmetrically distributed in the interior of the sliding block 2, the end of the limiting block 302 is in a circular state, the end of the limiting block 302 is matched with the inner wall of the vertical oil groove 305, the outer wall of the guide groove 303 is in an inclined state as a whole, and the bottom of the pressing rod 301 is fixed with the cylindrical protrusion matched with the inner side of the guide groove 303.

[0042] In the embodiment, the structure can make the lubricating oil enter the interior of the ball groove 4, and the lubricating oil first flows to the bottom of the ball bodies at other positions in the ball groove 4 at the upper layer through the horizontal oil groove 306, thereby avoiding the lubricating oil directly falling into the ball groove 4 at the lower layer, reducing the consumption of the lubricating oil, and improving the lubricating effect.

[0043] The above describes only the preferred specific embodiments of the present application, but the protection scope of the present application is not limited to this. Any skilled person in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A linear guide rail pair slider structure, comprising a guide rail (1), the outer wall of the guide rail (1) is sleeved with a slider (2), the inner side of the slider (2) is provided with a ball groove (4), characterized in that, The lubricating mechanism (3) is arranged on the sliding block (2) and the ball groove (4); The lubricating mechanism (3) comprises a guiding unit and a transmission unit; The guiding unit is used for lubricating the ball body inside the ball groove (4); The transmission unit is used for guiding the flow of lubricating oil.

2. The linear guide rail pair slider structure according to claim 1, wherein, The transmission unit comprises a pressing rod (301), a limiting block (302), a guiding groove (303) and an elastic block (304); The pressing rod (301) is axially slidably arranged inside the sliding block (2) and extends to the outside of the sliding block (2), and the pressing rod (301) is used for giving the limiting block (302) a lateral moving thrust; The limiting block (302) is laterally slidably arranged inside the sliding block (2) and extends to the inside of the vertical oil groove (305), and the limiting block (302) is used for blocking the vertical flow of lubricating oil; The guiding groove (303) is arranged on the outer wall of the limiting block (302), and the guiding groove (303) is used for guiding the lateral movement of the limiting block (302); The elastic block (304) is clamped at both ends of the end of the pressing rod (301) and the inside of the sliding block (2), respectively, and the elastic block (304) is used for providing the pressing rod (301) with a directional extrusion elastic force.

3. The linear guide rail pair slider structure according to claim 1, characterized in that, The guiding unit comprises a vertical oil groove (305) and a horizontal oil groove (306); The vertical oil groove (305) is vertically arranged on the bottom of the ball groove (4) and communicates with another ball groove (4), and the vertical oil groove (305) is used for guiding the vertical flow of lubricating oil; The horizontal oil groove (306) is horizontally arranged inside the sliding block (2), and the horizontal oil groove (306) is used for guiding the horizontal flow of lubricating oil.

4. The linear guide rail pair slider structure according to claim 3, characterized in that, The number of the vertical oil grooves (305) is multiple, and the multiple vertical oil grooves (305) are uniformly distributed below the ball body inside the ball groove (4).

5. The linear guide rail pair slider structure according to claim 1, characterized in that, The number of the ball grooves (4) is two, and the two ball grooves (4) are symmetrically distributed inside the sliding block (2).

6. The linear guide rail pair slider structure according to claim 2, characterized in that, The end of the limiting block (302) is in a circular state, and the end of the limiting block (302) is matched with the inner wall of the vertical oil groove (305).

7. The linear guide rail pair slider structure according to claim 2, characterized in that, The outer wall of the guiding groove (303) is in an inclined state as a whole, and the bottom of the pressing rod (301) is fixed with a cylindrical protrusion matched with the inner side of the guiding groove (303).

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