Anti-torque cold-drawn linear guide rail

Abstract

The utility model belongs to the technical field of linear guide rails, and particularly relates to an anti-torque cold-drawing linear guide rail which comprises a base, a guide rail arranged above the base, a lower surface of the guide rail fixedly connected with an upper surface of the base, a sliding block arranged above the base, a lower surface of the sliding block slidably connected with the upper surface of the base, and a dust cover arranged above the base. The bottom faces of the two dust covers are both in sliding connection with the upper surface of the base, and the side faces of the two dust covers are fixedly connected with the two side faces of the sliding block correspondingly. According to the anti-torque cold-drawing linear guide rail, the trapezoidal groove of the sliding block is matched with the surface of the guide rail, the inner wall of the trapezoidal groove of the sliding block is in sliding connection with the surface of the guide rail, the first rolling wheel and the second rolling wheel on the sliding block are in rolling connection in the first sliding groove and the second sliding groove correspondingly, and the torque of the sliding block and the guide rail acts on the contact face; and after being abraded, the rolling element is still in surface contact, the torque resistance is better than that of point contact, and the problem that the torque resistance is weakened after the existing rolling element is abraded is solved.

Description

Technical Field

[0001] The utility model relates to the technical field of linear guide rails, in particular to an anti-torque cold-drawn linear guide rail. Background Art

[0002] A high torque rolling linear guide pair (publication number: CN211550272U) disclosed on the Chinese patent website has solved the technical problem that the traditional rolling linear guide pair has limited space structure and the center distance between the upper and lower row balls cannot be increased, resulting in insufficient anti-torsion and anti-vibration capabilities and cannot meet customer processing requirements. However, the following problems still exist:

[0003] In actual use, due to the point contact between the guide rail and the slider through the rolling elements, the rolling elements inside the slider are subjected to long-term force and sliding friction inside the raceway, causing wear, which in turn leads to gaps between the rolling elements and the raceway, causing the guide rail's anti-torque ability to weaken, making it inconvenient to use. Utility Model Content

[0004] Based on the technical problem that the torque resistance of existing rolling parts becomes weak after being worn, the utility model proposes a torque-resistant cold-drawn linear guide rail.

[0005] The torque-resistant cold-drawn linear guide proposed in the utility model comprises a base, a guide rail is arranged above the base, the lower surface of the guide rail is fixedly connected to the upper surface of the base, a slider is arranged above the base, the lower surface of the slider is slidably connected to the upper surface of the base, a dust cover is arranged above the base, the bottom surfaces of the two dust covers are both slidably connected to the upper surface of the base, and the side surfaces of the two dust covers are respectively fixedly connected to the two side surfaces of the slider.

[0006] Preferably, a first slide groove is provided on the upper surface of the guide rail, and two of the first slide grooves are symmetrically distributed with the axis of the guide rail as the center, and a second slide groove is provided on the side of the guide rail, and two of the second slide grooves are symmetrically distributed with the axis of the guide rail as the center, and the inner walls of the first slide groove and the second slide groove are both T-shaped.

[0007] Preferably, a trapezoidal groove is provided on the surface of the slider, the inner wall of the trapezoidal groove is adapted to the surface of the guide rail, the inner top surface of the trapezoidal groove is fixedly connected with a first connecting shaft, a plurality of the first connecting shafts are distributed in a linear array along the movement direction of the slider, and two rows of the first connecting shafts are symmetrically distributed with the axis of the slider as the center.

[0008] Preferably, a second connecting shaft is fixedly connected to the inner side surface of the trapezoidal groove, and a plurality of the second connecting shafts are distributed in a linear array along the movement direction of the slider, and two rows of the first connecting shafts are symmetrically distributed with the axis of the slider as the center.

[0009] Preferably, a first roller is rotatably mounted on the first connecting shaft via a bearing, and a second roller is rotatably mounted on the second connecting shaft via a bearing.

[0010] Preferably, the surface of the guide rail is slidably connected to the inner wall of the trapezoidal groove of the slider, the surface of the first roller is rollingly connected to the inner wall of the first slide groove, and the surface of the second roller is rollingly connected to the inner wall of the second slide groove.

[0011] The beneficial effects of the present invention are:

[0012] By setting the trapezoidal groove of the slider to match the surface of the guide rail, the inner wall of the trapezoidal groove of the slider is slidably connected to the surface of the guide rail, the first roller and the second roller on the slider are rollingly connected in the first slide groove and the second slide groove respectively, and the torque of the slider and the guide rail acts on the contact surface. After wear, it is still surface contact, and the torque resistance is better than point contact, which solves the problem of weakening torque resistance of existing rolling parts after wear. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A schematic diagram of the anti-torque cold-drawn linear guide proposed by the utility model;

[0014] Figure 2 This is a front view of the guide rail structure of the anti-torque cold-drawn linear guide rail proposed by the utility model;

[0015] Figure 3 This is a three-dimensional diagram of the slider structure of the anti-torque cold-drawn linear guide proposed by the utility model.

[0016] In the figure: 1, base; 2, guide rail; 3, slider; 4, dust cover; 201, first slide groove; 202, second slide groove; 301, first connecting shaft; 302, second connecting shaft; 303, first roller; 304, second roller. DETAILED DESCRIPTION

[0017] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all of the embodiments.

[0018] Reference Figure 1-Figure 3 The torque-resistant cold-drawn linear guide comprises a base 1, a guide rail 2 is arranged above the base 1, the lower surface of the guide rail 2 is fixedly connected to the upper surface of the base 1, a slider 3 is arranged above the base 1, the lower surface of the slider 3 is slidably connected to the upper surface of the base 1, a dust cover 4 is arranged above the base 1, the bottom surfaces of the two dust covers 4 are slidably connected to the upper surface of the base 1, and the sides of the two dust covers 4 are fixedly connected to the two side surfaces of the slider 3 respectively.

[0019] A first slide groove 201 is provided on the upper surface of the guide rail 2, and the two first slide grooves 201 are symmetrically distributed with the axis of the guide rail 2 as the center. A second slide groove 202 is provided on the side of the guide rail 2, and the two second slide grooves 202 are symmetrically distributed with the axis of the guide rail 2 as the center. The inner walls of the first slide groove 201 and the second slide groove 202 are both T-shaped.

[0020] Furthermore, the first sliding groove 201 and the second sliding groove 202 provided on the guide rail 2 can be rollingly connected with the sliding block 3 .

[0021] A trapezoidal groove is provided on the surface of the slider 3, the inner wall of the trapezoidal groove is adapted to the surface of the guide rail 2, and the inner top surface of the trapezoidal groove is fixedly connected to a first connecting shaft 301. Multiple first connecting shafts 301 are distributed in a linear array along the movement direction of the slider 3, and two rows of first connecting shafts 301 are symmetrically distributed with the axis of the slider 3 as the center.

[0022] Furthermore, the position of the first connecting shaft 301 matches the position of the first sliding groove 201 of the guide rail 2 .

[0023] The inner side of the trapezoidal groove is fixedly connected with a second connecting shaft 302 , and a plurality of second connecting shafts 302 are distributed in a linear array along the moving direction of the slider 3 , and two rows of first connecting shafts 301 are symmetrically distributed with the axis of the slider 3 as the center.

[0024] Furthermore, the position of the second connecting shaft 302 matches the position of the second sliding groove 202 of the guide rail 2 .

[0025] A first roller 303 is rotatably mounted on the first connecting shaft 301 via a bearing, and a second roller 304 is rotatably mounted on the second connecting shaft 302 via a bearing.

[0026] Furthermore, the first roller 303 and the second roller 304 on the slider 3 can be rollingly connected to the guide rail 2 to reduce friction.

[0027] The surface of the guide rail 2 is slidably connected to the inner wall of the trapezoidal groove of the slider 3 , the surface of the first roller 303 is rollingly connected to the inner wall of the first slide groove 201 , and the surface of the second roller 304 is rollingly connected to the inner wall of the second slide groove 202 .

[0028] Furthermore, the roller of the slider 3 is adapted to the slide groove of the guide rail 2 .

[0029] By setting the trapezoidal groove of the slider to match the surface of the guide rail, the inner wall of the trapezoidal groove of the slider is slidably connected to the surface of the guide rail, the first roller and the second roller on the slider are rollingly connected in the first slide groove and the second slide groove respectively, and the torque of the slider and the guide rail acts on the contact surface. After wear, it is still surface contact, and the torque resistance is better than point contact, which solves the problem of weakening torque resistance of existing rolling parts after wear.

[0030] Working principle:

[0031] Before use, the guide rail 2 is fixedly installed on the base 1, and the slider 3 is fixedly connected with multiple first connecting shafts 301 and second connecting shafts 302. The first roller 303 and the second roller 304 are rotatably installed on the first connecting shaft 301 and the second connecting shaft 302 respectively, and the first roller 303 and the second roller 304 on the slider 3 are slid into the first slide groove 201 and the second slide groove 202 on the guide rail 2 respectively. The surface of the guide rail 2 is slidably connected to the inner wall of the trapezoidal groove of the slider 3, and the bottom of the dust cover 4 is slidably connected along the slide rail and the upper surface of the base 1, and the sides of the two dust covers 4 are fixedly connected to the two sides of the slider 3 respectively, so as to protect the guide rail 2 from foreign objects hindering the sliding.

[0032] The above description 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 torque-resistant cold-drawn linear guide rail, comprising a base (1), characterized in that: A guide rail (2) is arranged above the base (1), the lower surface of the guide rail (2) is fixedly connected to the upper surface of the base (1), a first slide groove (201) is provided on the upper surface of the guide rail (2), and two of the first slide grooves (201) are symmetrically distributed with the axis of the guide rail (2) as the center, a second slide groove (202) is provided on the side of the guide rail (2), and two of the second slide grooves (202) are symmetrically distributed with the axis of the guide rail (2) as the center, the inner walls of the first slide groove (201) and the second slide groove (202) are both T-shaped, and a slider (3) is arranged above the base (1), and the lower surface of the slider (3) is fixedly connected to the base ( The slide block (3) is slidably connected to the upper surface of the slide block (1), a trapezoidal groove is provided on the surface of the slide block (3), the inner wall of the trapezoidal groove is matched with the surface of the guide rail (2), a first connecting shaft (301) is fixedly connected to the inner top surface of the trapezoidal groove, a plurality of the first connecting shafts (301) are distributed in a linear array along the movement direction of the slide block (3), two rows of the first connecting shafts (301) are symmetrically distributed with the axis of the slide block (3) as the center, a dust cover (4) is arranged above the base (1), the bottom surfaces of the two dust covers (4) are slidably connected to the upper surface of the base (1), and the side surfaces of the two dust covers (4) are fixedly connected to the two side surfaces of the slide block (3) respectively.

2. The anti-torque cold-drawn linear guide rail according to claim 1, characterized in that: A second connecting shaft (302) is fixedly connected to the inner side surface of the trapezoidal groove, and a plurality of the second connecting shafts (302) are distributed in a linear array along the moving direction of the slider (3).

3. The anti-torque cold-drawn linear guide rail according to claim 2, characterized in that: A first roller (303) is rotatably mounted on the first connecting shaft (301) via a bearing, and a second roller (304) is rotatably mounted on the second connecting shaft (302) via a bearing.

4. The anti-torque cold-drawn linear guide rail according to claim 3, characterized in that: The surface of the guide rail (2) is slidably connected to the inner wall of the trapezoidal groove of the slider (3), the surface of the first roller (303) is rollingly connected to the inner wall of the first slide groove (201), and the surface of the second roller (304) is rollingly connected to the inner wall of the second slide groove (202).

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