Guide rail for numerical control machine tool

Abstract

The utility model discloses a guide rail for a numerical control machine tool, and particularly relates to the technical field of numerical control machine tools, which comprises a guide rail, chutes are arranged on two sides of the guide rail, lubricating components are arranged at the tops of the chutes, each lubricating component comprises a spherical cavity, the spherical cavities are arranged on the inner top surfaces of the chutes, and balls are arranged in the spherical cavities in a rolling manner. The inner top face of the spherical cavity fixedly communicates with a solution cavity, an opening end is formed in the spherical cavity, the ball is located in the spherical cavity all the time, and the ball makes contact with the opening end. By arranging the spherical cavity, the ball can be installed through the spherical cavity, and meanwhile the ball can be effectively prevented from falling off from the interior of the spherical cavity in the mode that the ball is located in the spherical cavity all the time. And therefore, lubricating oil stored in a solution cavity communicated with the spherical cavity can be more conveniently used for lubricating the sliding groove and the sliding block, and the lubricating effect between the sliding block and the sliding groove is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of numerically controlled machine tools, in particular to a guide rail for numerically controlled machine tools. Background Art

[0002] A guide rail is a groove or ridge made of metal or other materials that can support, fix, guide moving devices or equipment and reduce friction. The guide rails used in CNC machine tools need to have certain guiding accuracy, accuracy retention, rigidity and low-speed motion smoothness, which are mainly determined by the geometric accuracy and contact accuracy of the guide rail, as well as the wear resistance of the guide rail.

[0003] When the slide rail and the slider move, due to sliding friction, the friction resistance between the slider and the guide rail is large, the degree of wear is large, and the service life of the guide rail is reduced very quickly; and the connection between the guide rail and the slider will cause low guiding accuracy of the guide rail due to long-term friction, which in turn causes deviations in the workpiece during the manufacturing process, and the working accuracy continues to decline; and when the guide rail is in operation, due to long-term friction between the guide rail and the slider, the lubrication performance between the guide rail and the slider will deteriorate, which will not only cause errors in the manufacture of the workpiece during operation, but also cause loud noises when the slider and the guide rail slide, making it inconvenient to use.

[0004] Therefore, we make improvements to this and propose a guide rail for CNC machine tools. Utility Model Content

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] The utility model discloses a guide rail for a numerically controlled machine tool, comprising a guide rail, wherein slide grooves are provided on both sides of the guide rail, a lubrication component is provided on the top of the slide groove, the lubrication component comprises a spherical cavity, the spherical cavity is provided on the inner top surface of the slide groove, a ball is provided for rolling in the spherical cavity, the inner top surface of the spherical cavity is fixedly connected to a solution cavity, an open end is provided in the spherical cavity, the ball is always located inside the spherical cavity, and the ball is in contact with the open end.

[0007] As an optimal technical solution of the present invention, a contact seat is provided inside the spherical cavity, a spherical portion is provided at the bottom of the contact seat, the spherical portion is in rolling contact with the ball, and the contact seat is movably arranged in the vertical direction of the spherical cavity.

[0008] As an optimal technical solution of the present invention, the solution chamber is configured as a conical structure, a block is slidably provided at the small-diameter end of the solution chamber, the block is provided inside the solution chamber, a spring is fixedly connected to the bottom of the block, the spring is vertically arranged between the block, and the end of the spring away from the block is fixedly connected to the contact seat.

[0009] As a preferred technical solution of the present invention, a replenishing port is provided on the top of the solution chamber, a sealing cover is detachably connected to the replenishing port by bolts, and the top of the sealing cover is flush with the surface of the guide rail.

[0010] As a preferred technical solution of the present invention, the inner wall of the spherical portion on the contact seat is always in rolling contact with the outer peripheral wall of the ball.

[0011] The beneficial effects of the present invention are as follows: 1. In the present invention, by providing a spherical cavity, the ball can be installed in the spherical cavity. At the same time, the ball is always located inside the spherical cavity, which can effectively prevent the ball from falling out of the spherical cavity. This makes it easier to use the lubricating oil stored in the solution cavity connected to the spherical cavity to lubricate the chute and the slider, further improving the lubrication effect between the slider and the chute.

[0012] 2. In the present invention, by utilizing a blocking block slidably arranged at the small-diameter end of the conical solution chamber, it is possible to more easily transport the lubricating oil stored in the solution chamber, effectively prevent the lubricating oil from leaking, and further control and limit the outflow of the lubricating oil, thereby further reducing the loss of the lubricating oil. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

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

[0015] Figure 2 It is a schematic diagram of the partial cross-sectional structure of the utility model;

[0016] Figure 3 This is a schematic diagram of the installation position of the ball of the utility model;

[0017] Figure 4 This utility model Figure 2 Enlarged schematic diagram of the structure of part A in the middle.

[0018] In the figure: 1. guide rail; 2. slide groove; 3. cover; 4. replenishing port; 5. solution chamber; 6. blocking block; 7. spring; 8. contact seat; 81. spherical part; 9. spherical chamber; 91. open end; 10. ball. DETAILED DESCRIPTION

[0019] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention and are not used to limit the present invention.

[0020] Example: Figures 1 to 4 As shown, the utility model provides a guide rail for a CNC machine tool, including a guide rail 1, with slide grooves 2 on both sides of the guide rail 1. The slide grooves 2 can be provided to facilitate sliding connection with the slider; a lubrication component is provided on the top of the slide groove 2, and the lubrication component includes a spherical cavity 9, which is opened on the inner top surface of the slide groove 2, and a ball 10 is rolled in the spherical cavity 9. The inner top surface of the spherical cavity 9 is fixedly connected to a solution cavity 5, and the solution cavity 5 is provided to facilitate the storage of lubricating oil. An open end 91 is opened in the spherical cavity 9, and the ball 10 is always located inside the spherical cavity 9, and the ball 10 is in contact with the open end 91; by utilizing the contact between the ball 10 and the open end 91, the lubricating oil can be more easily transported to the surface of the ball 10, and the ball 10 is lubricated by utilizing the rolling contact between the ball 10 and the slider.

[0021] A contact seat 8 is provided inside the spherical cavity 9, and a spherical portion 81 is provided at the bottom of the contact seat 8. The provision of the contact seat 8 can make it easier to install the ball 10, and by utilizing the rolling contact between the spherical portion 81 and the ball 10, it can be easier for the ball 10 to roll inside the contact seat 8; the spherical portion 81 and the ball 10 are in rolling contact, and the contact seat 8 is movably provided in the vertical direction of the spherical cavity 9; by movably providing the contact seat 8 in the vertical direction of the spherical cavity 9, it can be further facilitated to utilize the contact seat 8 to drive the block 6 to move.

[0022] The solution cavity 5 is set to a conical structure. By setting the solution cavity 5 to a conical structure, it is easier to transport the lubricating oil from the solution cavity 5 to the spherical cavity 9; a block 6 is slidably set at the small-diameter end of the solution cavity 5. By sliding the block 6 at the small-diameter end of the solution cavity 5, it is easier to control the amount of lubricating oil, and it is more convenient to use; the block 6 is set inside the solution cavity 5, and a spring 7 is fixedly connected to the bottom of the block 6. The spring 7 is vertically arranged between the block 6, and the end of the spring 7 away from the block 6 is fixedly connected to the contact seat 8; the spring 7 fixedly connected between the block 6 and the contact seat 8 can more easily utilize the displacement of the ball 10 to control the gap between the block 6 and the solution cavity 5, which is more conducive to using lubricating oil to lubricate the slider and the guide rail 1.

[0023] A replenishing port 4 is provided at the top of the solution chamber 5. By utilizing the replenishing port 4 provided at the top of the solution chamber 5, the lubricating oil in the solution chamber 5 can be replenished more conveniently, and it is more convenient to use; a cover 3 is detachably connected to the replenishing port 4 by bolts, and the cover 3 detachably connected to the replenishing port 4 by bolts can effectively prevent the lubricating oil from overflowing from the solution chamber 5; the top of the cover 3 is arranged flush with the surface of the guide rail 1. By setting the top of the cover 3 to be flush with the surface of the guide rail 1, it is possible to replenish the lubricating oil in the solution chamber 5 while further reducing the friction between the slider and the guide rail 1, so that the slider can always maintain a good sliding state with the guide rail 1.

[0024] The inner wall of the spherical portion 81 on the contact seat 8 is always in rolling contact with the outer peripheral wall of the ball 10. The spherical portion 81 provided on the contact seat 8 facilitates rolling contact with the ball 10 and further ensures that when the ball 10 moves vertically upward, it can also drive the contact seat 8 to move in the vertical direction, thereby ensuring that there is a gap between the blocking block 6 and the solution chamber 5 for the lubricating oil to flow out, making it more convenient to use.

[0025] During operation, when the slider slides in the slide groove 2, the slider will squeeze the ball 10 in the spherical cavity 9 to move upward. At this time, there is an open end 91 between the ball 10 and the spherical cavity 9. When the ball 10 moves upward in the spherical cavity 9, it will push the contact seat 8 upward to move upward. By utilizing the spring 7 fixedly connected between the contact seat 8 and the block 6, the block 6 will be driven to slide upward in the conical solution cavity 5. At this time, there is a gap between the block 6 and the solution cavity 5. The lubricating oil in the solution cavity 5 will flow to the inside of the spherical cavity 9 through the gap between the block 6 and the solution cavity 5. At this time, a layer of lubricating oil will be attached to the inner wall of the spherical cavity 9. By utilizing the rolling contact between the outer wall of the ball 10 and the inner wall of the spherical cavity 9, a layer of lubricating oil is also attached to the outer wall of the ball 10. By utilizing the rolling contact between the ball 10 and the slider, lubrication can be performed between the slider and the slide groove 2.

[0026] Finally, it should be noted that the above description is merely 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 will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A guide rail for a numerically controlled machine tool, comprising a guide rail (1), characterized in that: Slide grooves (2) are provided on both sides of the guide rail (1), and a lubrication component is provided on the top of the slide groove (2). The lubrication component includes a spherical cavity (9), and the spherical cavity (9) is provided on the inner top surface of the slide groove (2). A ball (10) is provided in the spherical cavity (9) for rolling. The inner top surface of the spherical cavity (9) is fixedly connected to a solution cavity (5). An open end (91) is provided in the spherical cavity (9), and the ball (10) is always located inside the spherical cavity (9). The ball (10) and the open end (91) are in contact with each other.

2. A guide rail for a CNC machine tool according to claim 1, characterized in that: A contact seat (8) is provided inside the spherical cavity (9), a spherical portion (81) is provided at the bottom of the contact seat (8), the spherical portion (81) is in rolling contact with the ball (10), and the contact seat (8) is movably provided in the vertical direction of the spherical cavity (9).

3. A guide rail for a CNC machine tool according to claim 2, characterized in that: The solution chamber (5) is provided with a conical structure, and a blocking block (6) is slidably provided at the small-diameter end of the solution chamber (5). The blocking block (6) is provided inside the solution chamber (5), and a spring (7) is fixedly connected to the bottom of the blocking block (6). The spring (7) and the blocking block (6) are vertically provided, and the end of the spring (7) away from the blocking block (6) is fixedly connected to the contact seat (8).

4. The guide rail for a CNC machine tool according to claim 3, characterized in that: A replenishing port (4) is provided at the top of the solution chamber (5), a sealing cover (3) is detachably connected to the replenishing port (4) via bolts, and the top of the sealing cover (3) is flush with the surface of the guide rail (1).

5. The guide rail for a CNC machine tool according to claim 4, characterized in that: The inner wall of the spherical portion (81) on the contact seat (8) is always in rolling contact with the outer peripheral wall of the ball (10).

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