Numerical control lathe guide rail

Abstract

The utility model relates to the technical field of guide rails, in particular to a numerically controlled lathe guide rail which comprises a sliding rail and a sliding block, the sliding block is connected in a track of the sliding rail in a sliding mode, a mounting plate is fixed at the top end of the sliding block, a numerically controlled lathe is mounted at the top end of the mounting plate, an oil cavity is formed in the sliding block, and an oil channel and a friction block mounting groove are formed in the side wall of the sliding block. A valve groove is formed in the side wall of the sliding block, a valve plate is slidably connected into the valve groove, an oil hole is formed in the surface of the valve plate, a friction block is fixed to the surface of the valve plate, and the friction block is slidably connected into the friction block mounting groove; the self-lubricating device has the beneficial effects that lubricating oil stored in the oil cavity is automatically added between the sliding rail and the sliding block, the self-lubricating function can effectively prevent poor lubrication of the guide rail of the numerical control lathe within the maintenance interval, and the running time of the guide rail of the numerical control lathe under the poor lubrication condition can be effectively shortened; therefore, abrasion of the track inner wall of the sliding rail and the sliding block is reduced.

Description

Technical Field

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

[0002] The guide rails of CNC lathes are an important component of CNC lathes. They have the functions of guiding and bearing, supporting and buffering, positioning and measuring, energy saving and easy maintenance. The guide rails of CNC lathes include slide rails and sliders. The sliders are slidably connected in the slide rails, forming the motion structure of the guide rails. The CNC lathe is fixed on the mounting plate set on the top of the slider and moves with the slider. During the use of the guide rail structure, special attention should be paid to the lubrication between the slide rails and the sliders. Poor lubrication will cause excessive friction between the sliders and the slide rails. If the guide rails are in poor lubrication for a long time, the wear of the slide rails and the sliders will be accelerated. After severe wear, problems such as poor guiding will occur, resulting in a decrease in the machining accuracy of the CNC lathe.

[0003] In the prior art, lubricating oil is usually added to the guide rails by maintenance personnel of CNC lathes on a regular basis through regular maintenance. When adding lubricating oil, the lubricating oil is generally applied to the inner wall of the slide rail, and then the lubricating oil is evenly applied by the sliding of the slider, thereby preventing the guide rails from running in a poorly lubricated state for a long time.

[0004] However, the existing method of adding lubricating oil to the guide rail relies too much on manual operation, and it is difficult to control the amount of lubricating oil applied by manual operation. When too little lubricating oil is applied, the lubricating oil will be consumed before the next maintenance, causing the guide rail to work in a poorly lubricated condition. Utility Model Content

[0005] The purpose of the utility model is to provide a guide rail for a numerically controlled lathe to solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a guide rail for a CNC lathe, comprising: a slide rail and a slider, the slider is slidably connected in the track of the slide rail, a mounting plate is fixed to the top of the slider, the CNC lathe is installed on the top of the mounting plate, an oil chamber is opened inside the slider, an oil channel and a friction block mounting groove are opened on the side wall of the slider, a valve groove is opened inside the side wall of the slider, a valve plate is slidably connected in the valve groove, an oil hole is opened on the surface of the valve plate, a friction block is fixed on the surface of the valve plate, and the friction block is slidably connected in the friction block mounting groove.

[0007] Preferably, the oil passage is connected with the oil cavity, the oil passage is a round hole structure, and several groups of oil passages are provided.

[0008] Preferably, the shape and size of the oil holes match the oil passages, and two groups of oil holes are provided on both sides of each group of oil passages, and the two groups of oil holes are symmetrically distributed about the oil passages.

[0009] Preferably, springs are fixed on two symmetrical end surfaces of the valve plate, and the other end of the spring is fixed on the inner wall of the valve slot.

[0010] Preferably, a filling port is provided at the top end of the sliding block, the filling port is communicated with the oil chamber, and a sealing cover is provided on the surface of the filling port.

[0011] Compared with the prior art, the beneficial effects of the utility model are:

[0012] The CNC lathe guide rail proposed by the utility model stores lubricating oil in the oil chamber in advance. When the lubricating oil between the slide rail and the slider is excessively consumed, resulting in poor lubrication between the slide rail and the slider, poor lubrication also occurs between the slide rail and the friction block, causing the friction block to slide, and the friction block drives the valve plate to slide, so that the oil holes on the surface of the valve plate are aligned with the oil channels, so that the lubricating oil stored in the oil chamber is automatically added between the slide rail and the slider. This self-lubricating function can effectively prevent the CNC lathe guide rail from being poorly lubricated within the maintenance interval, and can effectively reduce the operation time of the CNC lathe guide rail under poor lubrication conditions, thereby reducing the wear of the inner wall of the slide rail and the slider. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the structure of the utility model;

[0014] Figure 2 This is a schematic diagram of the cross-sectional structure of the utility model;

[0015] Figure 3 for Figure 2 A schematic diagram of the structure enlargement in the middle;

[0016] Figure 4 It is a schematic diagram of the slider structure;

[0017] Figure 5 It is a schematic diagram of the cross-sectional structure of the slider;

[0018] Figure 6 Schematic diagram of the cross-sectional structure of the valve plate;

[0019] Figure 7 for Figure 6 Enlarged schematic diagram of the structure at point B in the middle.

[0020] In the figure: slide rail 1, slider 2, mounting plate 3, oil chamber 4, filling port 5, cover 6, valve groove 7, valve plate 8, friction block mounting groove 9, friction block 10, oil channel 11, oil hole 12, spring 13. DETAILED DESCRIPTION

[0021] In order to make the purpose and technical solution of the utility model clearly and completely described, and the advantages more clearly understood, the embodiments of the utility model are further described in detail in conjunction with the accompanying drawings. It should be understood that the specific embodiments described here are part of the embodiments of the utility model, not all of the embodiments, and are only used to explain the embodiments of the utility model, and are not used to limit the embodiments of the utility model. All other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0022] Embodiment 1

[0023] See also Figure 1-Figure 7 The utility model provides a technical solution: a guide rail for a numerically controlled lathe, comprising: a slide rail 1 and a slider 2, the slider 2 is slidably connected in the track of the slide rail 1, a mounting plate 3 is fixed on the top of the slider 2, and a numerically controlled lathe is installed on the top of the mounting plate 3, characterized in that: an oil chamber 4 is opened inside the slider 2, an oil passage 11 and a friction block mounting groove 9 are opened on the side wall of the slider 2, a valve groove 7 is opened inside the side wall of the slider 2, a valve plate 8 is slidably connected in the valve groove 7, an oil hole 12 is opened on the surface of the valve plate 8, a friction block 10 is fixed on the surface of the valve plate 8, and the friction block 10 is slidably connected in the friction block mounting groove 9, the oil passage 11 is connected to the oil chamber 4, the oil passage 11 is a circular hole structure, the oil passage 11 is provided with a plurality of groups, the shape and size of the oil holes 12 match the oil passage 11, and two groups of oil holes 12 are arranged on both sides of each group of oil passages 11, and the two groups of oil holes 12 are symmetrically distributed about the oil passage 11.

[0024] In actual use, the slider 2 slides in the slide rail 1, driving the CNC lathe on the top of the mounting plate 3 to move together. When the slide rail 1 and the slider 2 are poorly lubricated, as the slider 2 continues to slide, the friction force of the inner wall of the track of the slide rail 1 on the friction block 10 increases, so that the friction block 10 originally located in the middle position of the friction block mounting groove 9 slides in the friction block mounting groove 9. The sliding of the friction block 10 drives the valve plate 8 to move in the same direction in the valve groove 7, so that the oil hole 12 is aligned with the oil channel 11, and the lubricating oil stored in the oil chamber 4 is applied to the gap between the slide rail 1 and the slider 2 through the oil channel 11 and the oil hole 12, and is applied to the inner wall of the track of the entire slide rail 1 under the gravity of the lubricating oil itself and the movement of the slider, so that the slide rail 1 and the slider 2 are aligned. Restore good lubrication; the CNC lathe guide rail stores lubricating oil in the oil chamber 4 in advance. When the lubricating oil between the slide rail 1 and the slider 2 is over-consumed, resulting in poor lubrication between the slide rail 1 and the slider 2, poor lubrication also occurs between the slide rail 1 and the friction block 10, causing the friction block 10 to slide, and the friction block 10 drives the valve plate 8 to slide, so that the oil hole 12 on the surface of the valve plate 8 is aligned with the oil channel 11, so that the lubricating oil stored in the oil chamber 4 is automatically added between the slide rail 1 and the slider 2. This self-lubricating function can effectively prevent the CNC lathe guide rail from being poorly lubricated within the maintenance interval, and can effectively reduce the running time of the CNC lathe guide rail under poor lubrication conditions, thereby reducing the wear of the inner wall of the slide rail 1 and the slider 2.

[0025] Embodiment 2

[0026] On the basis of Example 1, in order to achieve the automatic return of the friction block 10 to the middle of the friction block mounting groove 9 after the slide rail 1 and the slider 2 are restored to good lubrication, springs 13 are fixed on the two symmetrical end faces of the valve plate 8, and the other end of the spring 13 is fixed on the inner wall of the valve groove 7.

[0027] Springs 13 are arranged between the two ends of the valve plate 8 and the inner wall of the valve groove 7. When the lubrication is good, the friction force between the slide rail 1 and the friction block 10 is less than the elastic force of the spring 13. Then, under the thrust of the two sets of springs 13, the valve plate 8 is maintained in the middle of the valve groove 7, which also makes the friction block 10 maintained in the middle of the friction block mounting groove 9; when the lubrication is poor, the friction force between the slide rail 1 and the friction block 10 becomes larger, and the friction force is greater than the elasticity of the spring 13, which will cause the friction block 10 to slide in the friction block mounting groove 9 in the direction opposite to the movement direction of the slider 2, so that the oil channel 11 is aligned with the oil hole 12, and the lubricating oil is automatically applied between the slide rail 1 and the slider 2; when the lubrication is restored to good condition, the friction force between the slide rail 1 and the friction block 10 is reduced again, so that the valve plate 8 is pushed back to the middle of the valve groove 7, and the friction block 10 automatically returns to the middle of the friction block mounting groove 9, which can also reduce the waste of lubricating oil in the oil chamber 4.

[0028] Embodiment 3

[0029] On the basis of the second embodiment, in order to facilitate adding lubricating oil into the oil chamber 4 , a filling port 5 is provided at the top of the slider 2 , the filling port 5 is connected to the oil chamber 4 , and a sealing cover 6 is provided on the surface of the filling port 5 .

[0030] In actual use, the slider 2 slides in the slide rail 1, driving the CNC lathe on the top of the mounting plate 3 to move together. When the slide rail 1 and the slider 2 are poorly lubricated, as the slider 2 continues to slide, the friction force of the inner wall of the slide rail 1 on the friction block 10 increases, so that the friction block 10 originally located in the middle position of the friction block mounting groove 9 slides in the friction block mounting groove 9. The sliding of the friction block 10 drives the valve plate 8 to move in the same direction in the valve groove 7, so that the oil hole 12 is aligned with the oil channel 11, and the lubricating oil stored in the oil chamber 4 is smeared in the gap between the slide rail 1 and the slider 2 through the oil channel 11 and the oil hole 12, and under the weight of the lubricating oil itself. Under the force and movement of the slider, it is smeared on the inner wall of the entire slide rail 1, so that the slide rail 1 and the slider 2 are well lubricated. The CNC lathe guide rail stores lubricating oil in the oil chamber 4 in advance. When the lubricating oil between the slide rail 1 and the slider 2 is over-consumed, resulting in poor lubrication between the slide rail 1 and the slider 2, the slide rail 1 and the friction block 10 are also poorly lubricated, so that the friction block 10 slides, and the friction block 10 drives the valve plate 8 to slide, so that the oil hole 12 on the surface of the valve plate 8 is aligned with the oil channel 11, so that the lubricating oil stored in the oil chamber 4 is automatically added between the slide rail 1 and the slider 2. This self-lubricating function can effectively Preventing poor lubrication of the CNC lathe guide rails during the maintenance interval can effectively reduce the length of time the CNC lathe guide rails run under poor lubrication conditions, thereby reducing the wear of the inner wall of the rail 1 and the slider 2 of the slide rail 1; springs 13 are arranged between the two ends of the valve plate 8 and the inner wall of the valve slot 7. When the lubrication is good, the friction between the slide rail 1 and the friction block 10 is less than the elastic force of the spring 13. Under the thrust of the two sets of springs 13, the valve plate 8 is maintained in the middle of the valve slot 7, which also maintains the friction block 10 in the middle of the friction block mounting slot 9; when the lubrication is poor, the friction between the slide rail 1 and the friction block 10 becomes larger, and the friction force is greater than the spring 13 The elasticity will cause the friction block 10 to slide in the friction block mounting groove 9 in the direction opposite to the movement direction of the slider 2, so that the oil channel 11 is aligned with the oil hole 12, and the lubricating oil is automatically applied between the slide rail 1 and the slider 2; when the lubrication is restored to a good state, the friction between the slide rail 1 and the friction block 10 is reduced again, so that the valve plate 8 is pushed back to the middle of the valve groove 7, and the friction block 10 automatically returns to the middle of the friction block mounting groove 9, which can also reduce the waste of lubricating oil in the oil chamber 4; in order to facilitate the addition of lubricating oil to the oil chamber 4, a filling port 5 is provided at the top of the slider 2, the filling port 5 is connected with the oil chamber 4, and a cover 6 is provided on the surface of the filling port 5.

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

Claims

1. A guide rail for a CNC lathe, comprising: A slide rail (1) and a slider (2), wherein the slider (2) is slidably connected in the track of the slide rail (1), a mounting plate (3) is fixed at the top of the slider (2), and a numerically controlled lathe is mounted at the top of the mounting plate (3), characterized in that an oil chamber (4) is provided inside the slider (2), an oil passage (11) and a friction block mounting groove (9) are provided on the side wall of the slider (2), a valve groove (7) is provided inside the side wall of the slider (2), a valve plate (8) is slidably connected in the valve groove (7), an oil hole (12) is provided on the surface of the valve plate (8), a friction block (10) is fixed on the surface of the valve plate (8), and the friction block (10) is slidably connected in the friction block mounting groove (9).

2. A CNC lathe guide rail according to claim 1, characterized in that: The oil passage (11) is connected to the oil cavity (4), the oil passage (11) is in a round hole structure, and the oil passage (11) is provided with a plurality of groups.

3. A CNC lathe guide rail according to claim 2, characterized in that: The shape and size of the oil holes (12) match those of the oil passages (11), and two groups of oil holes (12) are arranged on both sides of each group of oil passages (11), and the two groups of oil holes (12) are symmetrically distributed about the oil passages (11).

4. The guide rail of a CNC lathe according to claim 1, characterized in that: Springs (13) are fixed on two symmetrical end surfaces of the valve plate (8), and the other end of the spring (13) is fixed on the inner wall of the valve groove (7).

5. The guide rail of a CNC lathe according to claim 1, characterized in that: The top end of the slider (2) is provided with a filling port (5), the filling port (5) is connected with the oil chamber (4), and a sealing cover (6) is provided on the surface of the filling port (5).

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