Ball screw linear guide rail

Abstract

The utility model relates to the technical field of linear guide rails, in particular to a ball screw linear guide rail which comprises a base, the outer surface of a ball screw is in threaded connection with a first sliding block, the top of the first sliding block is fixedly connected with a bearing plate, and the outer surface of a sliding rail is in sliding connection with a second sliding block. Connecting boxes are inserted into the tops of the first mounting frame and the second mounting frame correspondingly, a torsional spring is fixedly connected to the outer surface of the fixing column, a winding wheel is fixedly connected to the end, away from the fixing column, of the torsional spring, a telescopic belt is wound around the outer surface of the winding wheel, and a hook is fixedly connected to the end, away from the winding wheel, of the telescopic belt. And the inner side wall of the limiting groove is fixedly connected with a limiting column. According to the device, the torsional spring, the winding wheel, the telescopic belt, the hook and the limiting column are arranged, so that the service life of the device is prolonged, and the hook and the opening are arranged, so that the convenience of mounting and dismounting of the device is improved.

Description

Technical Field

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

[0002] A ball screw is a product that converts rotary motion into linear motion, or converts linear motion into rotary motion. It consists of a screw, a nut and a ball. It is the most commonly used transmission element in tool machinery and precision machinery. It also has the characteristics of high precision, reversibility and high efficiency. In the field of modern industrial transmission, linear guides have always been key products in all walks of life, and ball screw transmission is widely used in linear guides due to its advantages such as low friction coefficient, high transmission accuracy and smooth transmission.

[0003] The existing ball screw linear guide exposes the screw to the outside when in use, making it easy for dust to adhere to the outside of the screw. The dust easily adheres to the balls when the device is in use, which increases the friction between the balls, thereby accelerating the wear of the balls and reducing the service life of the device. Therefore, a ball screw linear guide is needed. Utility Model Content

[0004] The utility model aims to solve the shortcomings in the prior art and proposes a ball screw linear guide.

[0005] In order to achieve the above-mentioned purpose, the utility model adopts the following technical scheme: a ball screw linear guide rail, comprising a base, a first mounting frame and a second mounting frame are fixedly connected to the top of the base, a first bearing seat is fixedly connected to the inside of the second mounting frame, a second bearing seat is fixedly connected to the inside of the first mounting frame, and a ball screw is rotatably connected to the inside of the first bearing seat and the second bearing seat, a first slider is threadedly connected to the outer surface of the ball screw, a bearing plate is fixedly connected to the top of the first slider, a slide rail is fixedly connected to the top of the base, a second slider is slidably connected to the outer surface of the slide rail, and the top of the second slider The first mounting bracket and the second mounting bracket are both fixedly connected with a connecting box at the top, the inner side wall of the connecting box is fixedly connected with a fixing column, the outer surface of the fixing column is fixedly connected with a torsion spring, the end of the torsion spring away from the fixing column is fixedly connected with a winding wheel, and the winding wheel is sleeved on the outside of the torsion spring, the outer surface of the winding wheel is wrapped with a telescopic belt, one end of the telescopic belt is fixedly connected to the outer surface of the winding wheel, the end of the telescopic belt away from the winding wheel is fixedly connected with a hook, the side surface of the bearing plate is provided with a limiting groove, the inner side wall of the limiting groove is fixedly connected with the limiting column, and the hook is movably connected to the limiting column.

[0006] Further: the side surface of the connection box is provided with an opening, and the opening is arc-shaped.

[0007] Furthermore: the number of the limiting grooves is two and they are symmetrically distributed on both sides of the bearing plate.

[0008] Further: the tops of the first mounting frame and the second mounting frame are both provided with card slots, and the ends of the connection box are located inside the card slots.

[0009] Furthermore: a dustproof frame is fixedly connected to the top of the base, and there are two dustproof frames, which are symmetrically distributed with the telescopic belt as the center.

[0010] Furthermore: the telescopic belt is located above the ball screw, the number of the slide rails is two, and the dustproof frame is located between the two slide rails.

[0011] The utility model has the following beneficial effects:

[0012] 1. Compared with the prior art, a torsion spring, a winding wheel, a telescopic belt, a hook and a limit column are provided, and the telescopic belt is stretched by the hook so that the hook is connected to the limit column. When the ball screw rotates, it drives the first slider and the bearing plate to move. When the bearing plate approaches one side of the connecting box, the winding wheel contracts the telescopic belt under the action of the torsion spring. When the bearing plate moves away from the connecting box, the telescopic belt is stretched under the pull of the hook. Connecting boxes are installed on both sides of the bearing plate. Whether in the stretched or contracted state, the telescopic belt can always shield the ball screw below it, so that dust outside the ball screw is reduced, which is beneficial to extending the service life of the device.

[0013] 2. Compared with the prior art, by setting a hook and an opening, the arc-shaped opening is used to facilitate the stretching of the telescopic belt to the outside and reduce the wear of the telescopic belt. The hook is connected to the limit column to facilitate the installation of the device. At the same time, the connection box is engaged with the card slot, which is also convenient for disassembly and replacement, which is conducive to improving the convenience of installation and disassembly of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the internal structure of the utility model from a first perspective;

[0016] Figure 3 For the utility model Figure 2 Enlarged view of point A in the middle;

[0017] Figure 4 It is a schematic diagram of the internal structure of the utility model from a second viewing angle;

[0018] Figure 5 For the utility model Figure 4 Enlarged view of point B in the middle.

[0019] Legend:

[0020] 1. Base; 2. First mounting frame; 3. Second mounting frame; 4. First bearing seat; 5. Second bearing seat; 6. Ball screw; 7. First slider; 8. Load plate; 9. Slide rail; 10. Second slider; 11. Connecting box; 12. Fixed column; 13. Torsion spring; 14. Winding wheel; 15. Telescopic belt; 16. Opening; 17. Hook; 18. Limiting groove; 19. Limiting column; 20. Dustproof frame. DETAILED DESCRIPTION

[0021] Reference Figure 1-5 The utility model provides a ball screw linear guide rail: it includes a base 1, a first mounting frame 2 and a second mounting frame 3 are fixedly connected to the top of the base 1, a first bearing seat 4 is fixedly connected to the inside of the second mounting frame 3, a second bearing seat 5 is fixedly connected to the inside of the first mounting frame 2, and a ball screw 6 is rotatably connected to the inside of the first bearing seat 4 and the second bearing seat 5, a first slider 7 is threadedly connected to the outer surface of the ball screw 6, a bearing plate 8 is fixedly connected to the top of the first slider 7, a slide rail 9 is fixedly connected to the top of the base 1, a second slider 10 is slidably connected to the outer surface of the slide rail 9, and the top of the second slider 10 is fixedly connected to the bottom of the bearing plate 8, the first mounting A connecting box 11 is inserted at the top of the frame 2 and the second mounting frame 3, and a fixing column 12 is fixedly connected to the inner side wall of the connecting box 11, and a torsion spring 13 is fixedly connected to the outer surface of the fixing column 12, and a winding wheel 14 is fixedly connected to one end of the torsion spring 13 away from the fixing column 12, and the winding wheel 14 is sleeved on the outside of the torsion spring 13, and a telescopic belt 15 is wrapped around the outer surface of the winding wheel 14, and one end of the telescopic belt 15 is fixedly connected to the outer surface of the winding wheel 14, and a hook 17 is fixedly connected to one end of the telescopic belt 15 away from the winding wheel 14, and a limiting groove 18 is provided on the side surface of the bearing plate 8, and the inner side wall of the limiting groove 18 is fixedly connected to the limiting column 19, and the hook 17 is movably connected to the limiting column 19. The telescopic belt 15 is stretched by the hook 17 so that the hook 17 is connected to the limit column 19. When the ball screw 6 rotates, it drives the first slider 7 and the supporting plate 8 to move. When the supporting plate 8 approaches the side of the connecting box 11, under the action of the torsion spring 13, the winding wheel 14 contracts the telescopic belt 15. When the supporting plate 8 moves away from the side of the connecting box 11, the telescopic belt 15 is stretched under the pull of the hook 17. The connecting box 11 is installed on both sides of the supporting plate 8. The telescopic belt 15 can always cover the ball screw 6 below it regardless of whether it is in the stretched or contracted state, so that the dust outside the ball screw 6 is reduced, which is beneficial to extending the service life of the device.

[0022] The side surface of the connection box 11 is provided with an opening 16 , and the opening 16 is arc-shaped. The arc-shaped opening 16 facilitates the stretching of the telescopic belt 15 to the outside and reduces the wear on the telescopic belt 15 .

[0023] There are two limiting grooves 18 , which are symmetrically distributed on both sides of the bearing plate 8 .

[0024] A slot is provided at the top of the first mounting frame 2 and the second mounting frame 3, and the end of the connection box 11 is located inside the slot. The hook 17 is connected to the limit column 19 to facilitate the installation of the device. At the same time, the connection box 11 is engaged with the slot, which is also convenient for disassembly and replacement, which is conducive to improving the convenience of installation and disassembly of the device.

[0025] A dustproof frame 20 is fixedly connected to the top of the base 1, and two dustproof frames 20 are provided and symmetrically distributed with the telescopic belt 15 as the center. The dustproof frame 20 cooperates with the telescopic belt 15 to perform synchronous dust prevention, further reducing dust outside the ball screw 6.

[0026] The telescopic belt 15 is located above the ball screw 6 , there are two slide rails 9 , and the dustproof frame 20 is located between the two slide rails 9 .

[0027] Working principle: The hook 17 is used to stretch the telescopic belt 15 so that the hook 17 is connected to the limit column 19. The ball screw 6 drives the first slider 7 and the supporting plate 8 to move when rotating. When the supporting plate 8 approaches the side of the connecting box 11, the winding wheel 14 contracts the telescopic belt 15 under the action of the torsion spring 13. When the supporting plate 8 moves away from the side of the connecting box 11, the telescopic belt 15 is stretched under the pull of the hook 17. The connecting box 11 is installed on both sides of the supporting plate 8. The telescopic belt 15 can always cover the ball screw 6 below it regardless of whether it is in the stretched or contracted state, so that the dust outside the ball screw 6 is reduced, which is beneficial to extend the service life of the device.

[0028] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A ball screw linear guide, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a first mounting frame (2) and a second mounting frame (3); the interior of the second mounting frame (3) is fixedly connected to a first bearing seat (4); the interior of the first mounting frame (2) is fixedly connected to a second bearing seat (5); and the interiors of the first bearing seat (4) and the second bearing seat (5) are both rotatably connected to a ball screw (6); the outer surface of the ball screw (6) is threadedly connected to a first slider (7); the top of the first slider (7) is fixedly connected to a bearing plate (8); the top of the base (1) is fixedly connected to a slide rail (9); the outer surface of the slide rail (9) is slidably connected to a second slider (10); the top of the second slider (10) is fixedly connected to the bottom of the bearing plate (8); the tops of the first mounting frame (2) and the second mounting frame (3) are both inserted into A connection box (11) is connected, the inner side wall of the connection box (11) is fixedly connected to a fixing column (12), the outer surface of the fixing column (12) is fixedly connected to a torsion spring (13), one end of the torsion spring (13) away from the fixing column (12) is fixedly connected to a winding wheel (14), and the winding wheel (14) is sleeved on the outside of the torsion spring (13), the outer surface of the winding wheel (14) is wrapped with a telescopic belt (15), one end of the telescopic belt (15) is fixedly connected to the outer surface of the winding wheel (14), and the end of the telescopic belt (15) away from the winding wheel (14) is fixedly connected to a hook (17), and a limiting groove (18) is provided on the side surface of the bearing plate (8), the inner side wall of the limiting groove (18) is fixedly connected to a limiting column (19), and the hook (17) is movably connected to the limiting column (19).

2. A ball screw linear guide according to claim 1, characterized in that: The side surface of the connection box (11) is provided with an opening (16), and the opening (16) is arc-shaped.

3. A ball screw linear guide according to claim 2, characterized in that: The number of the limiting grooves (18) is two and they are symmetrically distributed on both sides of the bearing plate (8).

4. The ball screw linear guide according to claim 1, characterized in that: The tops of the first mounting frame (2) and the second mounting frame (3) are both provided with card slots, and the ends of the connection box (11) are located inside the card slots.

5. The ball screw linear guide according to claim 1, characterized in that: A dustproof frame (20) is fixedly connected to the top of the base (1), and two dustproof frames (20) are provided and are symmetrically distributed with the telescopic belt (15) as the center.

6. A ball screw linear guide rail according to claim 5, characterized in that: The telescopic belt (15) is located above the ball screw (6), the number of the slide rails (9) is two, and the dustproof frame (20) is located between the two slide rails (9).

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