Mounting structure of linear guide rail

Abstract

The utility model discloses a mounting structure of a linear guide rail, which relates to the technical field of linear guide rail mounting, and comprises a base, a linear guide rail and a butt-joint buffer component, the butt-joint buffer component is used for providing buffer for the placement of a guide rail main body and avoiding rigid collision between the guide rail main body and a concave seat; the butt joint buffering assembly comprises a buffering unit, a fixing unit and an alignment guiding unit. The buffer unit is used for buffering the placement of the guide rail main body; the fixing unit is used for carrying out mounting and fixing operation on part of parts of the buffer unit; the alignment guide unit is used for achieving alignment operation of the containing groove and the first threaded hole. According to the guide rail, the butt-joint assembly is arranged, so that the storage groove, the penetrating groove and the first threaded hole in the guide rail body can be quickly aligned, the guide rail body can be placed and buffered through the rubber layer on the outer side of the ball and the butt-joint rubber ring, hard collision of the guide rail body is avoided, and the installation precision of the guide rail body is effectively guaranteed.

Description

Technical Field

[0001] The utility model relates to the technical field of linear guide rails, in particular to an installation structure of a linear guide rail. Background Art

[0002] Linear guides are also called linear rails, slides, linear guides, and linear slides. The function of linear guide motion is to support and guide moving parts to perform reciprocating linear motion in a given direction. Linear guides are used in high-precision or high-speed linear reciprocating motion occasions, and can bear a certain torque, and can achieve high-precision linear motion under high load conditions.

[0003] The linear guide is fixed to the base by fixing screws, and the installation accuracy is high. During the actual installation, when the linear guide is placed on the base, the linear guide is prone to hard collision with the base, which will affect the installation accuracy of the linear guide. Based on this, a linear guide installation structure is provided. Utility Model Content

[0004] The purpose of the utility model is to provide a linear guide rail installation structure in order to solve the above-mentioned problems.

[0005] To achieve the above object, the utility model provides the following technical solutions: a linear guide rail installation structure, comprising a base and a linear guide rail, wherein the base is composed of a concave seat, a mounting groove, and a first threaded hole, wherein the mounting groove is symmetrically formed on both sides of the top of the concave seat to provide an installation space for the linear guide rail, wherein the first threaded hole is provided at the bottom of the inner wall of the mounting groove, and wherein the linear guide rail comprises a guide rail body, a receiving groove, a through groove, and a rubber ring mounting groove;

[0006] The receiving groove, the through groove, and the rubber ring installation groove are arranged inside the guide rail body and are sequentially distributed from top to bottom. The receiving groove passes through the top of the guide rail body, and the rubber ring installation groove passes through the bottom of the guide rail body. The receiving groove, the through groove, and the rubber ring installation groove are aligned with the axis of the first threaded hole. The guide rail body is fixedly installed by a fixing screw that passes through the receiving groove, the through groove, and the rubber ring installation groove and is threadedly connected with the first threaded hole.

[0007] A docking buffer assembly is provided between the bottom of the installation groove and the bottom of the guide rail body, and the docking buffer assembly is used to provide buffering for the placement of the guide rail body to avoid a hard collision between the guide rail body and the concave seat;

[0008] The docking buffer assembly includes a buffer unit, a fixing unit, and an alignment guide unit;

[0009] The buffer unit is used to buffer the placement of the guide rail body;

[0010] The fixing unit is used to install and fix some parts of the buffer unit;

[0011] The alignment guide unit is used to realize the alignment operation between the receiving groove and the first threaded hole.

[0012] As a further solution of the utility model: the buffer unit includes a lower hemisphere groove and a ball;

[0013] The lower hemisphere groove is opened at the bottom of the installation groove, and the ball is rotatably installed on the inner side of the lower hemisphere groove. The ball is composed of an inner core steel ball and an outer rubber layer. When the guide rail body is placed on the inner side of the installation groove, it first contacts the outer rubber layer of the ball, and the placement of the guide rail body is buffered by the outer rubber layer.

[0014] As a further solution of the utility model: the fixing unit includes a fixing cover plate, an upper hemispherical groove, a docking circular hole, a mounting hole, and a second threaded hole;

[0015] The upper hemispherical groove is opened at the bottom of the fixed cover plate and penetrates to the top of the fixed cover plate. The fixed cover plate is sleeved on the outside of the ball through the upper hemispherical groove and fits on the bottom of the inner wall of the installation groove. The top of the ball protrudes to the top of the fixed cover plate.

[0016] The docking circular hole is opened at the bottom of the fixed cover plate and penetrates to the top of the fixed cover plate, the vertical axis of the docking circular hole is aligned with the vertical axis of the first threaded hole, the docking circular hole and the upper hemispherical groove are staggered in the horizontal direction, and the horizontal center lines of the two are in a coincident state;

[0017] The mounting holes are symmetrically arranged on both sides of the top of the fixed cover plate, and the second threaded holes are symmetrically arranged on both sides of the bottom of the mounting groove and aligned with the mounting holes. The fixed cover plate and the ball bearing are installed by screws passing through the mounting holes and being screwed together with the second threaded holes.

[0018] As a further solution of the utility model: the alignment guide unit includes a linear guide groove, a positioning ball groove, and a docking rubber ring;

[0019] The linear guide groove is provided at the bottom of the guide rail body and passes through both ends of the guide rail body. The guide rail body cooperates with the ball bearing to realize horizontal transverse limited sliding of the guide rail body.

[0020] The positioning ball groove is provided at the bottom of the guide rail body and is connected with the linear guide groove, and the horizontal center lines of the linear guide groove, the positioning ball groove and the rubber ring installation groove are in a coincident state;

[0021] The docking rubber ring is installed inside the rubber ring installation groove and protrudes to the bottom of the guide rail body;

[0022] The ball is inserted into the positioning ball groove to realize the position positioning of the guide rail body. At this time, the docking rubber ring is synchronously inserted into the docking circular hole to realize the coincidence of the center line of the rubber ring installation groove and the docking circular hole.

[0023] As a further solution of the utility model: the outer wall diameter of the docking rubber ring matches the inner diameter of the docking circular hole and the rubber ring installation groove, the inner diameter of the docking rubber ring matches the inner diameter of the first threaded hole, and the height of the docking rubber ring protruding to the bottom of the guide rail body matches the wall thickness of the fixed cover plate.

[0024] As a further solution of the utility model: the height of the linear guide groove is less than the top height of the ball protruding fixed cover plate, and the height difference between the top height of the ball protruding fixed cover plate and the inner wall of the linear guide groove is greater than the height of the docking rubber ring protruding from the bottom of the guide rail body;

[0025] The inner wall track of the positioning ball groove matches the track of the ball protruding out of the fixed cover plate.

[0026] Compared with the prior art, the beneficial effects of the utility model are:

[0027] By setting up the docking assembly, the storage groove, the through groove and the first threaded hole on the guide rail body can be quickly aligned, and the outer rubber layer of the ball bearing and the docking rubber ring can be used to buffer the placement of the guide rail body, thereby avoiding hard collision of the guide rail body and effectively ensuring the installation accuracy of the guide rail body. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 It is a schematic diagram of the structure of the utility model;

[0029] Figure 2 It is a structural sectional view of the utility model;

[0030] Figure 3 It is a cross-sectional exploded view of the utility model;

[0031] Figure 4 It is a structural schematic diagram of the bottom of the guide rail body of the utility model.

[0032] In the figure: 1. base; 101. concave seat; 102. mounting groove; 103. first threaded hole; 2. docking buffer assembly; 201. lower hemispherical groove; 202. ball; 203. fixed cover plate; 204. upper hemispherical groove; 205. docking circular hole; 206. mounting hole; 207. second threaded hole; 208. linear guide groove; 209. positioning ball groove; 210. docking rubber ring; 3. linear guide rail; 301. guide rail body; 302. storage groove; 303. through groove; 304. rubber ring mounting groove. DETAILED DESCRIPTION

[0033] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0034] See also Figures 1 to 4 In the embodiment of the utility model, a linear guide rail installation structure includes a base 1 and a linear guide rail 3. The base 1 is composed of a concave seat 101, a mounting groove 102, and a first threaded hole 103. The mounting groove 102 is symmetrically formed on both sides of the top of the concave seat 101 to provide an installation space for the linear guide rail 3. The first threaded hole 103 is opened at the bottom of the inner wall of the mounting groove 102. The linear guide rail 3 includes a guide rail body 301, a receiving groove 302, a through groove 303, and a rubber ring mounting groove 304.

[0035] The receiving groove 302, the through groove 303, and the rubber ring installation groove 304 are provided inside the guide rail body 301 and are sequentially arranged from top to bottom. The receiving groove 302 penetrates the top of the guide rail body 301, and the rubber ring installation groove 304 penetrates the bottom of the guide rail body 301. The receiving groove 302, the through groove 303, and the rubber ring installation groove 304 are aligned with the axis of the first threaded hole 103. The guide rail body 301 is fixedly installed by a fixing screw penetrating the receiving groove 302, the through groove 303, and the rubber ring installation groove 304 and being threadedly connected with the first threaded hole 103.

[0036] A docking buffer assembly 2 is provided between the bottom of the installation groove 102 and the bottom of the guide rail body 301, and the docking buffer assembly 2 is used to provide a buffer for the placement of the guide rail body 301 to prevent the guide rail body 301 from having a hard collision with the concave seat 101;

[0037] The docking buffer assembly 2 includes a buffer unit, a fixing unit, and an alignment guide unit;

[0038] The buffer unit is used to buffer the placement of the guide rail body 301;

[0039] The fixing unit is used to install and fix some parts of the buffer unit;

[0040] The alignment guide unit is used to realize the alignment operation between the receiving groove 302 and the first threaded hole 103;

[0041] The buffer unit includes a lower hemispherical groove 201 and a ball 202;

[0042] The lower hemispherical groove 201 is opened at the bottom of the installation groove 102, and the ball 202 is rotatably installed inside the lower hemispherical groove 201. The ball 202 is composed of an inner core steel ball and an outer rubber layer. When the guide rail body 301 is placed inside the installation groove 102, it first contacts the outer rubber layer of the ball 202, and the placement of the guide rail body 301 is buffered by the outer rubber layer;

[0043] The fixing unit includes a fixing cover plate 203, an upper hemispherical groove 204, a docking circular hole 205, a mounting hole 206, and a second threaded hole 207;

[0044] The upper hemispherical groove 204 is formed at the bottom of the fixed cover plate 203 and penetrates to the top of the fixed cover plate 203. The fixed cover plate 203 is sleeved on the outside of the ball 202 through the upper hemispherical groove 204 and fits on the bottom of the inner wall of the mounting groove 102. The top of the ball 202 protrudes to the top of the fixed cover plate 203.

[0045] The docking circular hole 205 is opened at the bottom of the fixed cover plate 203 and penetrates to the top of the fixed cover plate 203. The vertical axis of the docking circular hole 205 is aligned with the vertical axis of the first threaded hole 103. The docking circular hole 205 and the upper hemispherical groove 204 are staggered in the horizontal direction and their horizontal center lines are overlapped.

[0046] The mounting holes 206 are symmetrically arranged on both sides of the top of the fixed cover plate 203, and the second threaded holes 207 are symmetrically arranged on both sides of the bottom of the mounting groove 102 and aligned with the mounting holes 206. The fixed cover plate 203 and the ball bearing 202 are installed by screws penetrating the mounting holes 206 and screwing them into the second threaded holes 207.

[0047] The alignment guide unit includes a linear guide groove 208, a positioning ball groove 209, and a docking rubber ring 210;

[0048] The linear guide groove 208 is provided at the bottom of the guide rail body 301 and passes through both ends of the guide rail body 301. The guide rail body 301 cooperates with the ball bearing 202 to realize horizontal lateral limited sliding of the guide rail body 301.

[0049] The positioning ball groove 209 is provided at the bottom of the guide rail body 301 and is connected to the linear guide groove 208. The horizontal center lines of the linear guide groove 208, the positioning ball groove 209 and the rubber ring installation groove 304 are in a coincident state;

[0050] The docking rubber ring 210 is installed inside the rubber ring installation groove 304 and protrudes to the bottom of the guide rail body 301;

[0051] The ball 202 is inserted into the positioning ball groove 209 to realize the positioning of the guide rail body 301 . At this time, the docking rubber ring 210 is synchronously inserted into the docking circular hole 205 to realize the center line coincidence of the rubber ring installation groove 304 and the docking circular hole 205 .

[0052] In this embodiment: it should be supplemented that: the number and position of the first threaded hole 103, the docking circular hole 205, the receiving groove 302, the through groove 303, and the rubber ring installation groove 304 correspond one to one, and the number and position of the lower hemispherical groove 201, the ball 202, the upper hemispherical groove 204, and the positioning ball groove 209 correspond one to one;

[0053] When installing the guide rail body 301, the docking rubber ring 210 can be installed in the multiple rubber ring installation grooves 304 in sequence first, and then the guide rail body 301 can be held with its bottom facing downward and then lowered into the installation groove 102. During this process, the linear guide groove 208 at the bottom of the guide rail body 301 can be aligned with the top of the ball 202 (it should be supplemented that: during this process, there is no need to align the docking rubber ring 210 and the docking circular hole 205, and it is only necessary to keep the positions close to each other). Finally, the inner wall of the linear guide groove 208 of the guide rail bottom 301 is in contact with the ball 202. At this time, the guide rail bottom 301 does not contact the fixed cover plate 203. The self-elasticity of the rubber layer on the outer side of the ball 202 can buffer the lowering process of the guide rail bottom 301 to avoid a hard collision of the guide rail body 301.

[0054] Then, the guide rail body 301 is moved horizontally. At this time, the guide rail body 301 slides linearly along the top of the ball 202 through the linear guide groove 208, and the ball 202 can rotate, so that the movement resistance of the guide rail body 301 can be further reduced;

[0055] When the ball 202 is aligned with the positioning ball groove 209, the ball 202 will be stuck in the positioning ball groove 209. At this time, the height of the guide rail body 301 is further reduced, and the lower surface of the guide rail body 301 is in contact with the top of the fixed cover plate 203. At the same time, the docking rubber ring 210 is synchronously aligned with the docking circular hole 205, and when the guide rail body 301 moves downward, the docking rubber ring 210 is inserted into the docking circular hole 205. The docking rubber ring 210 and the docking circular hole 205 are squeezed and rubbed to provide a buffer for the downward movement of the guide rail body 301. With the buffering of the ball 202, the guide rail body 301 is effectively prevented from having a hard collision.

[0056] Then, the fixing screw is passed through the receiving groove 302, the through groove 303, the docking rubber ring 210 and screwed with the first threaded hole 103 (it should be additionally explained that: multiple fixing screws are tightened in sequence, and the tightening is divided into multiple times to ensure the flatness of the guide rail body 301).

[0057] Please refer to Figures 1 to 3 The outer wall diameter of the docking rubber ring 210 matches the inner diameter of the docking circular hole 205 and the rubber ring installation groove 304, the inner diameter of the docking rubber ring 210 matches the inner diameter of the first threaded hole 103, and the height of the docking rubber ring 210 protruding to the bottom of the guide rail body 301 matches the wall thickness of the fixed cover plate 203.

[0058] In this embodiment, this structure allows the docking rubber ring 210 to be completely received in the rubber ring installation groove 304 and the docking circular hole 205 , without affecting the tightening of the fixing screw and the first threaded hole 103 and the flatness of the guide rail body 301 .

[0059] Please refer to Figures 1 to 4 , the height of the linear guide groove 208 is less than the top height of the ball 202 protruding from the fixed cover plate 203, and the height difference between the top height of the ball 202 protruding from the fixed cover plate 203 and the inner wall height of the linear guide groove 208 is greater than the height of the docking rubber ring 210 protruding from the bottom of the guide rail body 301;

[0060] The inner wall trajectory of the positioning ball groove 209 matches the trajectory of the portion of the ball 202 protruding from the fixed cover plate 203 .

[0061] In this embodiment: this structure ensures that the bottom of the docking rubber ring 210 does not contact the fixed cover plate 203 during the process of the linear guide groove 208 moving along the surface of the ball 202;

[0062] In addition, by matching the inner wall trajectory of the positioning ball groove 209 with the trajectory of the portion of the ball 202 protruding from the fixed cover plate 203 , the ball 202 can be completely positioned inside the ball groove 209 , thereby preventing the ball 202 from affecting the flatness of the guide rail body 301 .

[0063] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes within the technical scope disclosed by the present invention according to the technical scheme and the utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A linear guide rail installation structure, comprising a base (1) and a linear guide rail (3), wherein the base (1) is composed of a concave seat (101), a mounting groove (102), and a first threaded hole (103), wherein the mounting groove (102) is symmetrically formed on both sides of the top of the concave seat (101) to provide an installation space for the linear guide rail (3), and the first threaded hole (103) is opened at the bottom of the inner wall of the mounting groove (102), characterized in that: The linear guide rail (3) comprises a guide rail body (301), a receiving groove (302), a through groove (303), and a rubber ring installation groove (304); The receiving groove (302), the through groove (303), and the rubber ring installation groove (304) are arranged inside the guide rail body (301) and are sequentially arranged from top to bottom. The receiving groove (302) passes through the top of the guide rail body (301), and the rubber ring installation groove (304) passes through the bottom of the guide rail body (301). The receiving groove (302), the through groove (303), and the rubber ring installation groove (304) are aligned with the axis of the first threaded hole (103). The guide rail body (301) is fixedly installed by a fixing screw that passes through the receiving groove (302), the through groove (303), and the rubber ring installation groove (304) and is threadedly connected with the first threaded hole (103). A docking buffer assembly (2) is provided between the bottom of the installation groove (102) and the bottom of the guide rail body (301), and the docking buffer assembly (2) is used to provide a buffer for the placement of the guide rail body (301) to avoid a hard collision between the guide rail body (301) and the concave seat (101); The docking buffer assembly (2) comprises a buffer unit, a fixing unit, and an alignment guide unit; The buffer unit is used to buffer the placement of the guide rail body (301); The fixing unit is used to install and fix some parts of the buffer unit; The alignment guide unit is used to realize the alignment operation between the receiving groove (302) and the first threaded hole (103).

2. The linear guide rail installation structure according to claim 1, characterized in that: The buffer unit comprises a lower hemispherical groove (201) and a rolling ball (202); The lower hemispherical groove (201) is provided at the bottom of the mounting groove (102), the ball (202) is rotatably mounted on the inner side of the lower hemispherical groove (201), the ball (202) is composed of an inner core steel ball and an outer rubber layer, and when the guide rail body (301) is placed on the inner side of the mounting groove (102), it first contacts the outer rubber layer of the ball (202), and the placement of the guide rail body (301) is buffered by the outer rubber layer.

3. The installation structure of a linear guide rail according to claim 2, characterized in that: The fixing unit comprises a fixing cover plate (203), an upper hemispherical groove (204), a docking circular hole (205), a mounting hole (206), and a second threaded hole (207); The upper hemispherical groove (204) is opened at the bottom of the fixed cover plate (203) and penetrates to the top of the fixed cover plate (203); the fixed cover plate (203) is sleeved on the outside of the ball (202) through the upper hemispherical groove (204) and fits on the bottom of the inner wall of the installation groove (102); the top of the ball (202) protrudes to the top of the fixed cover plate (203); The docking circular hole (205) is opened at the bottom of the fixed cover plate (203) and penetrates to the top of the fixed cover plate (203); the vertical axis of the docking circular hole (205) is aligned with the vertical axis of the first threaded hole (103); the docking circular hole (205) and the upper hemispherical groove (204) are staggered in the horizontal direction and their horizontal center lines are overlapped; The mounting holes (206) are symmetrically arranged on both sides of the top of the fixed cover plate (203); the second threaded holes (207) are symmetrically arranged on both sides of the bottom of the mounting groove (102) and aligned with the mounting holes (206); the mounting of the fixed cover plate (203) and the ball bearing (202) is achieved by inserting screws through the mounting holes (206) and screwing them together with the second threaded holes (207).

4. The linear guide rail installation structure according to claim 3, characterized in that: The alignment guide unit comprises a linear guide groove (208), a positioning ball groove (209), and a docking rubber ring (210); The linear guide groove (208) is provided at the bottom of the guide rail body (301) and passes through both ends of the guide rail body (301); the guide rail body (301) cooperates with the ball bearing (202) through the linear guide groove (208) to achieve horizontal transverse limited sliding of the guide rail body (301); The positioning ball groove (209) is provided at the bottom of the guide rail body (301) and is connected to the linear guide groove (208), and the horizontal center lines of the linear guide groove (208), the positioning ball groove (209) and the rubber ring installation groove (304) are in a coincident state; The docking rubber ring (210) is installed inside the rubber ring installation groove (304) and protrudes to the bottom of the guide rail body (301); The ball (202) is inserted into the positioning ball groove (209) to realize the position positioning of the guide rail body (301), and at this time, the docking rubber ring (210) is synchronously inserted into the docking circular hole (205) to realize the center line coincidence of the rubber ring installation groove (304) and the docking circular hole (205).

5. The linear guide rail installation structure according to claim 4, characterized in that: The outer wall diameter of the docking rubber ring (210) matches the inner diameter of the docking circular hole (205) and the rubber ring installation groove (304), the inner diameter of the docking rubber ring (210) matches the inner diameter of the first threaded hole (103), and the height of the docking rubber ring (210) protruding to the bottom of the guide rail body (301) matches the wall thickness of the fixed cover plate (203).

6. The linear guide rail installation structure according to claim 4, characterized in that: The height of the linear guide groove (208) is less than the height of the top of the ball (202) protruding from the fixed cover plate (203), and the height difference between the top of the ball (202) protruding from the fixed cover plate (203) and the inner wall of the linear guide groove (208) is greater than the height of the docking rubber ring (210) protruding from the bottom of the guide rail body (301); The inner wall track of the positioning ball groove (209) matches the track of the portion of the ball (202) protruding from the fixed cover plate (203).

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