High and low rail structure of numerical control machine tool

Abstract

The high-low rail structure of the numerical control machine tool comprises an installation base, a first guide rail, a second guide rail and a movable base, the first guide rail and the second guide rail are both fixed on the installation base, the first guide rail is higher than the second guide rail, and the first guide rail and the second guide rail are both horizontally arranged on the installation base in parallel. The bottom of the movable base is arranged on the first guide rail and the second guide rail, and the movable base is obliquely arranged. The first guide rail and the second guide rail are horizontally arranged, and the first guide rail is higher than the second guide rail, so that the movable seat uniformly acts on the first guide rail and the second guide rail, the phenomenon that the single side of the guide rail is unbalanced in stress is avoided, the phenomenon that the single guide rail is damaged too fast is avoided, the service life of the guide rail is prolonged, and the service life of the guide rail is prolonged. And the moving precision of the moving seat is guaranteed, and the workpiece machining precision is improved.

Description

Technical Field

[0001] The utility model belongs to an important component structure of a stone or metal processing machine tool, and particularly relates to a high-low rail structure of a numerical control machine tool. Background Art

[0002] When processing stone or metal on a machine tool, after the workpiece is installed on the machine tool, the workpiece is processed by moving a tool on the machine tool. For example, a numerically controlled turning and milling compound machine tool disclosed in the application number 201821252906.2 installs a turret on a moving device, and the moving device can move left and right along two guide rails arranged along an inclined plane on the machine tool. When such a moving device moves, the acting force of the entire moving frame during movement is mainly concentrated on the upper side of the upper guide rail, resulting in excessive pressure on the upper side of the upper guide rail by the moving frame, while the lower guide rail and the other side of the upper guide rail are not subjected to much force. After long-term use, the unilateral wear of the guide rail is serious. Therefore, after the guide rail is worn, the movement accuracy of the moving frame is affected to a certain extent, affecting the machining accuracy of the workpiece, and affecting the service life of the guide rail. The corresponding guide rail needs to be frequently replaced, and the replacement is difficult, affecting the processing efficiency of the product. Summary of the Utility Model

[0003] The purpose of the utility model is to provide a high-low rail structure of a numerical control machine tool that can solve at least one of the above problems.

[0004] According to one aspect of the utility model, there is provided a high-low rail structure of a numerical control machine tool, including a mounting seat, a first guide rail, a second guide rail, and a moving seat. The first guide rail and the second guide rail are both fixed on the mounting seat. The first guide rail is higher than the second guide rail. The first guide rail and the second guide rail are both horizontal and are arranged in parallel on the mounting seat. The bottom of the moving seat is disposed on the first guide rail and the second guide rail, and the moving seat is inclined.

[0005] The beneficial effect of the utility model is that by arranging the first guide rail and the second guide rail horizontally and the first guide rail being higher than the second guide rail, the moving seat acts evenly on the first guide rail and the second guide rail, avoiding the phenomenon of uneven unilateral force on the guide rail, thus avoiding the phenomenon of too fast damage to a single guide rail, being beneficial to improving the service life of the guide rail, and also being beneficial to ensuring the movement accuracy of the moving seat and improving the machining accuracy of the workpiece.

[0006] In some embodiments, the bottom of the moving seat is provided with a first slider and a second slider. The first slider is matched with the first guide rail, and the second slider is matched with the second guide rail. Thus, by providing the corresponding sliders, it is convenient for the moving seat to cooperate with the guide rail.

[0007] In some embodiments, a first support portion and a second support portion are provided on the mounting base. The tops of the first support portion and the second support portion are both horizontally arranged. The first guide rail is fixed to the top of the first support portion, and the second guide rail is fixed to the top of the second support portion. A plurality of grooves are provided on the side surfaces of both the first support portion and the second support portion. Thus, by providing the first support portion and the second support portion, it is convenient to support the first guide rail and the second guide rail at different height positions, facilitating the installation and fixation of the two guide rails.

[0008] In some embodiments, a first limiting projection is provided on the mounting base. The first limiting projection is provided on the upper end surface of the first support portion, and the outer side of the first guide rail abuts against the inner side wall of the first limiting projection. Thus, by providing the first limiting projection, the installation position of the first guide rail can be limited, which helps to prevent the first guide rail from loosening when subjected to force during use.

[0009] In some embodiments, a second limiting projection is provided on the mounting base. The second limiting projection is provided on the upper end surface of the second support portion, and the outer side of the second guide rail abuts against the inner side wall of the second limiting projection. Thus, by providing the second limiting projection, the installation position of the second guide rail can be limited, which helps to prevent the second guide rail from loosening when subjected to force during use.

[0010] In some embodiments, a supporting base is provided at the bottom of the moving base. The moving base is matched with the first guide rail and the second guide rail through the supporting base, and the bottom end of the supporting base is horizontally arranged. Thus, through the supporting base, it is convenient for the bottom to cooperate with the horizontally arranged guide rails.

[0011] In some embodiments, the supporting base and the moving base are of an integrally formed structure. A plurality of through holes are provided at one end of the supporting base close to the first guide rail, and reinforcing plates are provided between adjacent through holes. Thus, by providing a plurality of through holes and reinforcing plates, while ensuring the supporting strength of the supporting base, the weight of the entire supporting base can be reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 is a schematic structural diagram of the high-low rail structure of the numerical control machine tool of the present utility model.

[0013] Figure 2 is a schematic structural diagram of the first guide rail and the second guide rail on the mounting base in the high-low rail structure of the numerical control machine tool of the present utility model.

[0014] Figure 3 is a schematic structural diagram of the moving base in the high-low rail structure of the numerical control machine tool of the present utility model. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0015] The present utility model will be further described in detail below with reference to the accompanying drawings.

[0016] Refer to Figures 1 to 3。The high-low rail structure of a numerically controlled machine tool includes a mounting base 1, a first guide rail 2, a second guide rail 3, and a moving seat 4. The first guide rail 2 and the second guide rail 3 are both fixed to the mounting base 1 by screws. The first guide rail 2 is higher than the second guide rail 3. Both the first guide rail 2 and the second guide rail 3 are horizontal and are arranged in parallel on the mounting base 1. The bottom of the moving seat 4 is disposed on the first guide rail 2 and the second guide rail 3, and the moving seat 4 is inclined. Since the first guide rail 2 is higher than the second guide rail 3, the inclination requirement of the moving seat 4 can be satisfied, facilitating the installation of structures such as a turret on the moving seat 4.

[0017] Since both the first guide rail 2 and the second guide rail 3 are horizontally arranged, when the moving seat 4 moves on the guide rails, it can act evenly on both sides of the two guide rails, avoiding the situation where one of the guide rails is stressed unilaterally, protecting the guide rails, increasing the service life of the guide rails, reducing maintenance, and thus facilitating the normal operation and processing efficiency of the machine tool.

[0018] The bottom of the moving seat 4 is fixed with a first slider 5 and a second slider 6 by screws. The first slider 5 cooperates with the first guide rail 2, and the second slider 6 cooperates with the second guide rail 3. Thus, through the cooperation of the sliders and the guide rails, the direct contact between the moving seat 4 and the guide rails is avoided, reducing friction and facilitating the smooth movement of the moving seat 4.

[0019] The mounting base 1 is provided with a first support portion 11 and a second support portion 12. The tops of the first support portion 11 and the second support portion 12 are both horizontally arranged. The first guide rail 2 is fixed to the top of the first support portion 11, and the second guide rail 3 is fixed to the top of the second support portion 12. A plurality of grooves 13 are provided on the side surfaces of the first support portion 11 and the second support portion 12. Among them, the first support portion 11, the second support portion 12, and the mounting base 1 are of an integrally formed structure; the first support portion 11 is higher than the second support portion 12, such that the first guide rail 2 is higher than the second guide rail 3 after installation, meeting the installation requirements.

[0020] By providing a plurality of grooves 13 on the side surfaces of the two support portions, the material consumption during the processing of each support portion can be reduced, the overall cost can be lowered, and the weight of the entire mounting base 1 can be reduced.

[0021] A first limiting protrusion 14 is formed on the mounting base 1. The first limiting protrusion 14 is disposed on the upper end surface of the first support portion 11, and the outer side of the first guide rail 2 abuts against the inner side wall of the first limiting protrusion 14 (i.e., the side of the first guide rail 2 opposite to the second guide rail 3 is the inner side).

[0022] A second limiting protrusion 15 is formed on the mounting base 1. The second limiting protrusion 15 is disposed on the upper end surface of the second support portion 12, and the outer side of the second guide rail 3 abuts against the inner side wall of the second limiting protrusion 15.

[0023] By forming the first limiting protrusion 14 and the second limiting protrusion 15, when the two guide rails are installed, they can be closely attached to the corresponding limiting protrusions, realizing the quick positioning and installation of the guide rails; at the same time, due to the function of the limiting protrusions, it can prevent the guide rails from shaking to a certain extent during use and avoid loosening.

[0024] A support seat 7 is provided at the bottom of the moving seat 4. The moving seat 4 is matched with the first guide rail 2 and the second guide rail 3 through the support seat 7, and the bottom end of the support seat 7 is horizontally arranged. Thus, by providing the support seat 7, the inclination requirement of the moving seat 4 can be further ensured; at the same time, it is convenient to cooperate with the horizontally arranged guide rails.

[0025] The support seat 7 and the moving seat 4 are of an integrally formed structure. A plurality of through holes 71 are provided at one end of the support seat 7 close to the first guide rail 2, and a reinforcing plate 72 is formed between adjacent through holes 71. By providing the through holes 71, the material consumption of the support seat 7 can be reduced, and at the same time, it is beneficial to reduce the weight of the entire moving seat and reduce the energy consumption required when the moving seat 4 moves; by providing the reinforcing plate 72, the support strength of the entire support seat 7 can be ensured.

[0026] The above are only the preferred embodiments of the present invention. It should be noted that for those of ordinary skill in the art, without departing from the creative concept of the present invention, several modifications and improvements can still be made, and these all belong to the protection scope of the present invention.

Claims

1. High and low rail structure of a numerically controlled machine tool, characterized in that, It includes a mounting base (1), a first guide rail (2), a second guide rail (3) and a moving base (4). The first guide rail (2) and the second guide rail (3) are both fixed on the mounting base (1). The first guide rail (2) is higher than the second guide rail (3). The first guide rail (2) and the second guide rail (3) are both horizontal and are arranged in parallel on the mounting base (1). The bottom of the moving base (4) is arranged on the first guide rail (2) and the second guide rail (3), and the moving base (4) is arranged obliquely.

2. The high-low rail structure of the numerical control machine tool according to claim 1, characterized in that, The bottom of the moving base (4) is provided with a first slider (5) and a second slider (6). The first slider (5) is matched with the first guide rail (2), and the second slider (6) is matched with the second guide rail (3).

3. The high-low rail structure of the numerical control machine tool according to claim 2, wherein, The mounting base (1) is provided with a first support portion (11) and a second support portion (12). The tops of the first support portion (11) and the second support portion (12) are both horizontally arranged. The first guide rail (2) is fixed on the top of the first support portion (11), and the second guide rail (3) is fixed on the top of the second support portion (12). A plurality of grooves (13) are provided on the side surfaces of the first support portion (11) and the second support portion (12).

4. The high-low rail structure of the numerically controlled machine tool according to claim 3, characterized in that, The mounting base (1) is provided with a first limiting protrusion (14). The first limiting protrusion (14) is arranged on the upper end surface of the first support portion (11), and the outer side of the first guide rail (2) abuts against the inner side wall of the first limiting protrusion (14).

5. The high-low rail structure of the numerically controlled machine tool according to claim 4, wherein, The mounting base (1) is provided with a second limiting protrusion (15). The second limiting protrusion (15) is arranged on the upper end surface of the second support portion (12), and the outer side of the second guide rail (3) abuts against the inner side wall of the second limiting protrusion (15).

6. The high-low rail structure of the numerical control machine tool according to any one of claims 1 to 5, characterized in that The bottom of the moving base (4) is provided with a supporting base (7). The moving base (4) is matched with the first guide rail (2) and the second guide rail (3) through the supporting base (7), and the bottom end of the supporting base (7) is horizontally arranged.

7. The high-low rail structure of the numerical control machine tool according to claim 6, wherein, The supporting base (7) and the moving base (4) are of an integrally formed structure. A plurality of through holes (71) are provided at one end of the supporting base (7) close to the first guide rail (2), and a reinforcing plate (72) is provided between adjacent through holes (71).

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