High-precision sliding table guide rail structure

Abstract

The utility model discloses a high-precision sliding table guide rail structure, and relates to the technical field of sliding table guide rail structures. The high-precision sliding table guide rail structure comprises a base, the upper surface of the base is fixedly connected with a supporting side plate, a first fixing plate and a second fixing plate, the outer surface of the first fixing plate is fixedly connected with a stepping motor, the output end of the stepping motor is fixedly connected with a ball screw, and the end of the stepping motor is fixedly connected with an encoder. A nut is arranged on the outer surface of the ball screw, a sliding table body is fixedly connected to the top of the nut, a lubricating mechanism is fixedly connected to the lower surface of the sliding table body, a rotating ball is arranged on the side of the lower surface of the sliding table body, a timer is fixedly connected to the outer surface of the sliding table body, and a guide groove is formed in the top of the supporting side plate; lubricating liquid is injected into the gap between the nut and the ball screw regularly for lubrication, and the situation that the precision is affected due to the fact that large abrasion occurs between the nut and the ball screw after the device works for a long time is avoided.

Description

Technical Field

[0001] This utility model relates to the field of slide table guide rail technology, specifically a high-precision slide table guide rail structure. Background Technology

[0002] The primary purpose of linear guide rail structures is to provide guidance and support for motion, ensuring the slide moves precisely along a predetermined trajectory. The precise fit between the guide rail and the slide allows the slide to achieve linear motion while maintaining extremely high rigidity and load-bearing capacity. Linear guide rail structures can be classified according to different standards, mainly including ball-bearing type, miniature type, widened type, and high-temperature resistant type. These types of linear guide rails each have their unique advantages and characteristics in different application scenarios.

[0003] Existing slide guide structures include ball screw structures. However, after prolonged operation, wear can easily occur between the nut and the ball screw, leading to increased friction and consequently affecting the accuracy of the structure. Utility Model Content

[0004] In view of the shortcomings of the prior art, this utility model provides a high-precision slide guide structure to solve the existing problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a high-precision slide rail structure, comprising a base, a supporting side plate, a first fixing plate, and a second fixing plate fixedly connected to the upper surface of the base; a stepper motor fixedly connected to the outer surface of the first fixing plate; a ball screw fixedly connected to the output end of the stepper motor; an encoder fixedly connected to the end of the stepper motor; a nut provided on the outer surface of the ball screw; a slide body fixedly connected to the top of the nut; and a lubrication mechanism fixedly connected to the lower surface of the slide body. A ball bearing is provided on the side of the lower surface of the slide body. A timer is fixedly connected to the outer surface of the slide body. A guide groove is provided on the top of the support side plate. The lubrication mechanism includes a liquid storage cylinder. A telescopic cylinder is fixedly connected to the end of the liquid storage cylinder. An inlet pipe is fixedly connected to the end of the liquid storage cylinder away from the telescopic cylinder. A piston is fixedly connected to the output end of the telescopic cylinder. A first solenoid valve is fixedly connected to the outer surface of the inlet pipe. A guide pipe is fixedly connected to the side of the outer surface of the liquid storage cylinder. A second solenoid valve is fixedly connected to the outer surface of the guide pipe.

[0006] Preferably, the support side plates are symmetrically arranged on both sides of the first fixed plate and the second fixed plate, and the rotating balls are symmetrically arranged on both sides of the nut.

[0007] Preferably, the rotating balls are arranged linearly along the lower surface of the slide body, and the outer surface of the rotating balls is adapted to the inner surface of the guide groove.

[0008] Preferably, the end of the ball screw away from the stepper motor is rotatably connected to the outer surface of the second fixed plate, and the encoder is coaxially arranged with the stepper motor.

[0009] Preferably, the outer surface of the liquid storage cylinder is fixedly connected to the lower surface of the slide body, the outer surface of the telescopic cylinder penetrates the liquid storage cylinder and extends into the inner cavity, and the outer surface of the piston is adapted to the inner surface of the liquid storage cylinder.

[0010] Preferably, the timer is electrically connected to the telescopic cylinder and the second solenoid valve, and the output end of the liquid guide tube is aligned with the gap between the nut and the ball screw.

[0011] Beneficial effects

[0012] This invention provides a high-precision slide guide structure. It has the following advantages:

[0013] (1) The high-precision slide rail structure uses a timer and a lubrication mechanism to control the telescopic cylinder and the second solenoid valve to inject lubricant into the gap between the nut and the ball screw at regular intervals to lubricate the device and prevent large wear between the nut and the ball screw after long-term operation, which would affect the accuracy.

[0014] (2) The high-precision slide rail structure, through the cooperation between the support side plate, the ball bearing and the guide groove, the support side plate provides support for the slide body, and the ball bearing is used to reduce the friction between the slide body and the support side plate, thereby improving the support function of the slide body, making the slide body have a larger load-bearing capacity, and improving the practicality of the slide rail structure. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model;

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

[0017] Figure 3 This is a schematic diagram of the lubrication mechanism of this utility model;

[0018] Figure 4 This is a schematic diagram of the internal structure of the lubrication mechanism of this utility model.

[0019] In the diagram: 1. Base; 2. Support side plate; 3. First fixing plate; 4. Second fixing plate; 5. Stepper motor; 6. Ball screw; 7. Nut; 8. Slide body; 9. Lubrication mechanism; 91. Liquid storage tank; 92. Telescopic cylinder; 93. Piston; 94. Liquid inlet pipe; 95. First solenoid valve; 96. Liquid guide pipe; 97. Second solenoid valve; 10. Ball bearing; 11. Timer; 12. Guide groove; 13. Encoder. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Example 1:

[0022] like Figure 1-4 As shown, this utility model provides a high-precision slide rail structure, including a base 1. A support side plate 2, a first fixing plate 3, and a second fixing plate 4 are fixedly connected to the upper surface of the base 1. A stepper motor 5 is fixedly connected to the outer surface of the first fixing plate 3. A ball screw 6 is fixedly connected to the output end of the stepper motor 5. An encoder 13 is fixedly connected to the end of the stepper motor 5. A nut 7 is provided on the outer surface of the ball screw 6. A slide body 8 is fixedly connected to the top of the nut 7. A lubrication mechanism 9 is fixedly connected to the lower surface of the slide body 8. A lubrication mechanism 9 is provided on the side of the lower surface of the slide body 8. The rotating ball 10 and the slide body 8 are fixedly connected to the outer surface of the slide body 8. The top of the support side plate 2 is provided with a guide groove 12. The lubrication mechanism 9 includes a liquid storage cylinder 91. The end of the liquid storage cylinder 91 is fixedly connected to a telescopic cylinder 92. The end of the liquid storage cylinder 91 away from the telescopic cylinder 92 is fixedly connected to an inlet pipe 94. The output end of the telescopic cylinder 92 is fixedly connected to a piston 93. The outer surface of the inlet pipe 94 is fixedly connected to a first solenoid valve 95. The side of the outer surface of the liquid storage cylinder 91 is fixedly connected to a guide pipe 96. The outer surface of the guide pipe 96 is fixedly connected to a second solenoid valve 97.

[0023] Specifically, the support side plates 2 are symmetrically arranged on both sides of the first fixed plate 3 and the second fixed plate 4, and the rotating balls 10 are symmetrically arranged on both sides of the nut 7.

[0024] Specifically, the rotating balls 10 are arranged linearly along the lower surface of the slide body 8, and the outer surface of the rotating balls 10 is adapted to the inner surface of the guide groove 12.

[0025] Specifically, the end of the ball screw 6 away from the stepper motor 5 is rotatably connected to the outer surface of the second fixed plate 4, and the encoder 13 is coaxially arranged with the stepper motor 5.

[0026] Specifically, the outer surface of the liquid storage cylinder 91 is fixedly connected to the lower surface of the slide body 8, the outer surface of the telescopic cylinder 92 penetrates the liquid storage cylinder 91 and extends into the inner cavity, and the outer surface of the piston 93 is adapted to the inner surface of the liquid storage cylinder 91.

[0027] Specifically, the timer 11 is electrically connected to the telescopic cylinder 92 and the second solenoid valve 97, and the output end of the liquid guide tube 96 is aligned with the gap between the nut 7 and the ball screw 6.

[0028] The working principle and beneficial effects of the above embodiments.

[0029] In use, the stepper motor 5 drives the ball screw 6 to rotate, causing the nut 7 to drive the slide body 8 to move linearly along the ball screw 6. The encoder 13 is used to precisely control the moving distance of the slide body 8. During the movement of the slide body 8, the ball bearing 10 moves along the guide groove 12. The support side plate 2 provides support for the slide body 8. The ball bearing 10 is used to reduce the friction between the slide body 8 and the support side plate 2, thereby improving the support effect of the slide body 8 and giving the slide body 8 a larger load-bearing capacity. The telescopic cylinder 92 and the second solenoid valve 97 are timed by the timer 11. The switch automatically activates the telescopic cylinder 92 and the second solenoid valve 97 after a set period of time, causing the telescopic cylinder 92 to extend a short distance. This drives the piston 93 to push a portion of the lubricating fluid in the reservoir 91 through the guide pipe 96 to the gap between the nut 7 and the ball screw 6 for lubrication. This prevents excessive wear between the nut 7 and the ball screw 6 after prolonged operation, which could affect accuracy. When the lubricating fluid in the reservoir 91 is used up, the first solenoid valve 95 is opened, and lubricating fluid is injected into the reservoir 91 through the inlet pipe 94 to ensure the continuous operation of the lubrication mechanism 9.

[0030] It should be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, the phrase "comprising an element defined as..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0031] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A high-precision slide rail structure, comprising a base (1), characterized in that: The upper surface of the base (1) is fixedly connected to a support side plate (2), a first fixed plate (3), and a second fixed plate (4). A stepper motor (5) is fixedly connected to the outer surface of the first fixed plate (3). A ball screw (6) is fixedly connected to the output end of the stepper motor (5). An encoder (13) is fixedly connected to the end of the stepper motor (5). A nut (7) is provided on the outer surface of the ball screw (6). A slide body (8) is fixedly connected to the top of the nut (7). A lubrication mechanism (9) is fixedly connected to the lower surface of the slide body (8). A ball bearing (10) is provided on the side of the lower surface of the slide body (8). A timer (11) is fixedly connected to the surface. A guide groove (12) is provided on the top of the support side plate (2). The lubrication mechanism (9) includes a liquid storage cylinder (91). A telescopic cylinder (92) is fixedly connected to the end of the liquid storage cylinder (91). An inlet pipe (94) is fixedly connected to the end of the liquid storage cylinder (91) away from the telescopic cylinder (92). A piston (93) is fixedly connected to the output end of the telescopic cylinder (92). A first solenoid valve (95) is fixedly connected to the outer surface of the inlet pipe (94). A guide pipe (96) is fixedly connected to the side of the outer surface of the liquid storage cylinder (91). A second solenoid valve (97) is fixedly connected to the outer surface of the guide pipe (96).

2. The high-precision slide guide structure according to claim 1, characterized in that: The supporting side plate (2) is symmetrically arranged on both sides of the first fixed plate (3) and the second fixed plate (4), and the rotating ball (10) is symmetrically arranged on both sides of the nut (7).

3. The high-precision slide guide structure according to claim 1, characterized in that: The ball bearings (10) are arranged linearly along the lower surface of the slide body (8), and the outer surface of the ball bearings (10) is adapted to the inner surface of the guide groove (12).

4. The high-precision slide guide structure according to claim 1, characterized in that: The end of the ball screw (6) away from the stepper motor (5) is rotatably connected to the outer surface of the second fixed plate (4), and the encoder (13) is coaxially arranged with the stepper motor (5).

5. The high-precision slide guide structure according to claim 1, characterized in that: The outer surface of the liquid storage cylinder (91) is fixedly connected to the lower surface of the slide body (8). The outer surface of the telescopic cylinder (92) penetrates the liquid storage cylinder (91) and extends into the inner cavity. The outer surface of the piston (93) is adapted to the inner surface of the liquid storage cylinder (91).

6. The high-precision slide guide structure according to claim 1, characterized in that: The timer (11) is electrically connected to the telescopic cylinder (92) and the second solenoid valve (97), and the output end of the liquid guide tube (96) is aligned with the gap between the nut (7) and the ball screw (6).

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