Linear motion noiseless guide rail of numerical control machine tool

Abstract

The utility model relates to the field of numerical control machine tool guide rails, and discloses a numerical control machine tool linear motion noiseless guide rail which comprises a protection box and a guide rail body, the protection box and the guide rail body are connected through a buckle mechanism, inserting holes are formed in the four corners of the bottom side of the guide rail body, and a through groove is formed in the guide rail body. A splicing assembly is arranged at the front end of the through groove, a splicing block is fixedly connected to the rear end of the through groove, a plurality of telescopic rods are arranged in the through groove, the outer wall of each telescopic rod is sleeved with a spring, one end of each spring is connected to the bottom side of the through groove, and the other end of each spring is connected to the top side of the through groove. According to the utility model, the guide rail has a certain protection structure, so that the damage of the guide rail during idle or transportation is reduced, the service life of the guide rail is prolonged, the guide rails are convenient to splice, and the working efficiency is improved.

Description

Technical Field

[0001] The utility model relates to the field of numerical control machine tool guide rails, in particular to a linear motion noise-free guide rail for numerical control machine tools. Background Art

[0002] The guide rails of CNC machine tools refer to the important components that support and guide the moving parts of the machine tool worktable, tool holder, etc. They are one of the key factors to ensure the high-precision processing of CNC machine tools. The following are some main contents about the guide rails of CNC machine tools: Types and structures: Linear guides: Slider guides: The most common type of linear guides, consisting of two parts: sliders and guide rails. Steel guide rails and metal sliders are usually used, and ball or roller bearings are installed inside the sliders, so that the sliders can move smoothly along the guide rails. Rolling guides: Rolling bearings are used to achieve higher rigidity and precision, suitable for high-speed processing and heavy load conditions. Curve guides: Used for CNC machine tools that require curved motion, such as curve cutting or complex curve processing in multi-axis processing. Functions and applications: Accuracy and stability: The design and manufacture of CNC machine tool guides directly affect the processing accuracy and stability of the machine tools. High-quality guide rails can provide higher repeat positioning accuracy and long-term stable operation. Wear resistance and life: Guide rails are usually made of high-strength alloy steel or special alloys, and the surface is heat treated or other surface treatment technologies to improve hardness and wear resistance to extend service life. Reduce vibration and noise: The use of suitable materials, precise processing and design can effectively reduce the vibration and noise of machine tools when running at high speed. Design and optimization: Material selection: Select suitable guide rail materials according to the load, processing requirements and working environment of the machine tool. Common materials include carbide steel, stainless steel, etc. Lubrication system: Use an effective lubrication system, such as an automatic lubrication device or regular manual lubrication to ensure the lubrication state of the guide rail, reduce wear and friction, and ensure motion accuracy. Structural design: Consider the installation method of the guide rail, the support structure, the flatness and accuracy of the sliding surface, and the convenience of adjustment and maintenance of the guide rail. The selection and application of CNC machine tool guide rails are directly related to the processing accuracy, efficiency and reliability of the machine tool. Therefore, in the design and selection process of the machine tool, the quality and performance of the guide rails are very important considerations.

[0003] However, the current CNC machine tool guide rails lack protection for the guide rails, which can easily cause the guide rails to be damaged during transportation or when idle, thereby reducing the service life of the guide rails. In addition, the current guide rails are not easy to splice, and the splicing process is time-consuming and labor-intensive, which leads to reduced work efficiency.

[0004] In view of this, in order to solve this technical problem, the present application proposes a noise-free linear motion guide rail for CNC machine tools. Utility Model Content

[0005] The purpose of the utility model is to solve the shortcomings existing in the prior art and to propose a noise-free linear motion guide rail for a CNC machine tool, aiming to make the guide rail have a certain protective structure, thereby reducing the damage of the guide rail when idle or transported, thereby increasing the service life of the guide rail, and making it easy to splice the guide rails, thereby improving work efficiency.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A noise-free linear motion guide rail for a numerically controlled machine tool comprises a protective box and a guide rail body, wherein the protective box and the guide rail body are connected via a snap mechanism, insertion holes are provided at four corners of the bottom side of the guide rail body, a through slot is provided inside the guide rail body, a splicing assembly is provided at the front end of the through slot, a splicing block is fixedly connected to the rear end of the through slot, a plurality of telescopic rods are provided inside the through slot, a spring is sleeved on the outer wall of the telescopic rod, one end of the spring is connected to the bottom side of the through slot, and the other end of the spring is connected to the top side of the through slot.

[0008] Furthermore, the buckle mechanism includes a metal tube fixedly connected to the four corners of the bottom side of the protective box, four limit bars are fixedly connected to the inside of the metal tube, and a limit assembly is arranged inside the metal tube.

[0009] Furthermore, the limiting assembly comprises a round rod slidably connected to the inside of the metal tube, the outer wall of the round rod is provided with four sliding grooves, the positions of the sliding grooves correspond to the limiting strip, and the internal thread of the round rod is connected to a threaded rod.

[0010] Furthermore, the end of the round rod is inserted into the insertion hole, and the end of the threaded rod is fixedly connected with a swivel.

[0011] Furthermore, the splicing assembly includes a bidirectional screw rotatably connected to the front end of the through slot, a limiting rod is fixedly connected to the front end of the through slot, the bidirectional screw and the limiting rod are connected by two snap blocks, one end of the snap block is threadedly connected to the outer wall of the bidirectional screw, and the other end of the snap block is slidably connected to the outer wall of the limiting rod.

[0012] Furthermore, slots are provided on both upper and lower sides of the splicing block, the buckle block is interference-fitted in the slots, and a hexagonal groove is provided on the top of the bidirectional screw.

[0013] Furthermore, rubber pads are fixedly connected to the middle ends of the left and right sides of the interior of the protective box.

[0014] The utility model has the following beneficial effects:

[0015] 1. In the utility model, the threaded rod is rotated by rotating the swivel, so that the round rod slides inside the metal tube under the action of the limit bar, so that the round rod is inserted into the socket or the round rod is disengaged from the socket, so that the protective box is installed on the guide rail body or the protective box is removed from the guide rail body, so that the guide rail has a certain protective structure, thereby reducing the damage of the guide rail when it is idle or transported, thereby increasing the service life of the guide rail.

[0016] 2. In the utility model, the splicing block is inserted into the front side of the through groove, and the corresponding hexagonal screwdriver is inserted into the hexagonal groove to rotate the bidirectional screw, so that the snap block is moved closer to the splicing block, so that the snap block is interference fit in the slot, thereby completing the splicing between the guide rail bodies, making the guide rails easy to splice, thereby improving work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a schematic diagram of the overall structure of a noise-free linear motion guide rail for a CNC machine tool proposed by the utility model;

[0018] Figure 2 This is a schematic diagram of the front side structure of a noise-free linear motion guideway for a CNC machine tool proposed by the utility model;

[0019] Figure 3 This is a schematic diagram of the rear side structure of a linear motion noiseless guide rail for a CNC machine tool proposed by the utility model;

[0020] Figure 4 This is a schematic diagram of the internal structure of a noise-free guide rail for linear motion of a CNC machine tool proposed by the utility model;

[0021] Figure 5 A schematic diagram of the splicing of a noise-free guide rail for linear motion of a CNC machine tool proposed by the utility model;

[0022] Figure 6 This is a schematic diagram of the internal structure of a protective box for a noise-free linear motion guide rail for a CNC machine tool proposed by the utility model;

[0023] Figure 7 The utility model is a schematic diagram of the internal structure of a metal tube of a linear motion noise-free guide rail for a numerically controlled machine tool.

[0024] Legend:

[0025] 1. Protective box; 2. Bidirectional screw; 3. Limit rod; 4. Metal pipe; 5. Guide rail body; 6. Buckle block; 7. Rubber pad; 8. Splicing block; 9. Telescopic rod; 10. Spring; 11. Round rod; 12. Swivel; 13. Limit strip; 14. Threaded rod; 15. Jack; 16. Slot. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in 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.

[0027] Reference Figure 1 and Figure 4 The utility model provides an embodiment: a linear motion noiseless guide rail for a numerically controlled machine tool, comprising a protective box 1 and a guide rail body 5, the protective box 1 and the guide rail body 5 are connected, and the four corners of the bottom side of the guide rail body 5 are provided with jacks 15, a through slot is provided inside the guide rail body 5, a splicing block 8 is fixedly connected to the rear end of the through slot, a plurality of telescopic rods 9 are arranged inside the through slot, and a spring 10 is sleeved on the outer wall of the telescopic rod 9, one end of the spring 10 is connected to the bottom side of the through slot, and the other end of the spring 10 is connected to the top side of the through slot, and a rubber pad 7 is fixedly connected to the middle end of the left and right sides of the interior of the protective box 1;

[0028] Specifically, the guide rail body 5 is protected by the protective box 1, the protection effect of the guide rail body 5 is improved by the rubber pad 7, and the vibration of the guide rail body 5 during operation is reduced by the telescopic rod 9 and the spring 10, thereby achieving the effect of reducing noise.

[0029] Reference Figure 1 , Figure 6 and Figure 7 The four corners of the bottom side of the protective box 1 are fixedly connected with a metal tube 4, and four limit strips 13 are fixedly connected inside the metal tube 4. A round rod 11 is slidably connected inside the metal tube 4. Four slide grooves are opened on the outer wall of the round rod 11. The positions of the slide grooves correspond to the limit strips 13. The inner thread of the round rod 11 is connected with a threaded rod 14. The end of the round rod 11 is inserted into the socket 15, and the end of the threaded rod 14 is fixedly connected with a swivel 12;

[0030] Specifically, the threaded rod 14 is rotated by rotating the swivel 12, so that the round rod 11 slides inside the metal tube 4 under the action of the limit bar 13, so that the round rod 11 is inserted into the socket 15 or the round rod 11 is disengaged from the socket 15, so that the protective box 1 is installed on the guide rail body 5 or the protective box 1 is removed from the guide rail body 5, so that the guide rail has a certain protective structure, thereby reducing the damage to the guide rail when it is idle or transported, thereby increasing the service life of the guide rail.

[0031] Reference Figure 2 , Figure 3 and Figure 5The front end of the through slot is rotatably connected with a bidirectional screw 2, and the front end of the through slot is fixedly connected with a limit rod 3. The bidirectional screw 2 and the limit rod 3 are connected by two buckle blocks 6. One end of the buckle block 6 is threadedly connected to the outer wall of the bidirectional screw 2, and the other end of the buckle block 6 is slidably connected to the outer wall of the limit rod 3. Slots 16 are provided on the upper and lower sides of the splicing block 8. The buckle block 6 is interference-fitted in the slot 16. A hexagonal groove is provided on the top of the bidirectional screw 2;

[0032] Specifically, the splicing block 8 is inserted into the front side of the through groove, and the corresponding hexagonal screwdriver is inserted into the hexagonal groove to rotate the bidirectional screw 2, so that the snap block 6 approaches the splicing block 8, so that the snap block 6 is interference fit in the slot 16, thereby completing the splicing between the guide rail bodies 5, making the guide rails easy to splice, thereby improving work efficiency.

[0033] Working principle: By rotating the swivel 12, the threaded rod 14 is rotated, so that the round rod 11 slides inside the metal tube 4 under the action of the limit strip 13, so that the round rod 11 is inserted into the socket 15 or the round rod 11 is disengaged from the socket 15, so that the protective box 1 is removed from the guide rail body 5. When the guide rail body 5 needs to be spliced, the splicing block 8 is inserted into the front side of the through groove, and the bidirectional screw 2 is rotated by inserting the corresponding hexagonal screwdriver into the hexagonal groove, so that the snap block 6 approaches the splicing block 8, so that the snap block 6 is interference fit in the slot 16, thereby completing the splicing between the guide rail bodies 5, and the telescopic rod 9 and the spring 10 are used to reduce the vibration of the guide rail body 5 during operation, thereby reducing the noise.

[0034] 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 noiseless linear motion guide rail for a numerically controlled machine tool, comprising a protective box (1) and a guide rail body (5), characterized in that: The protective box (1) and the guide rail body (5) are connected via a snap-fit ​​mechanism, and the four corners of the bottom side of the guide rail body (5) are provided with insertion holes (15), and a through slot is provided inside the guide rail body (5). A splicing assembly is provided at the front end of the through slot, and a splicing block (8) is fixedly connected to the rear end of the through slot. A plurality of telescopic rods (9) are provided inside the through slot, and a spring (10) is sleeved on the outer wall of the telescopic rod (9), and one end of the spring (10) is connected to the bottom side of the through slot, and the other end of the spring (10) is connected to the top side of the through slot.

2. The linear motion noiseless guide rail for CNC machine tools according to claim 1, characterized in that: The buckle mechanism comprises a metal tube (4) fixedly connected to the four corners of the bottom side of the protection box (1), four limit strips (13) are fixedly connected inside the metal tube (4), and a limit assembly is arranged inside the metal tube (4).

3. The linear motion noiseless guide rail for CNC machine tools according to claim 2, characterized in that: The limiting assembly comprises a round rod (11) slidably connected to the inside of the metal tube (4); the outer wall of the round rod (11) is provided with four sliding grooves, the positions of the sliding grooves correspond to the limiting strips (13); the inner thread of the round rod (11) is connected to a threaded rod (14).

4. The linear motion noiseless guide rail for CNC machine tools according to claim 3, characterized in that: The end of the round rod (11) is inserted into the insertion hole (15), and the end of the threaded rod (14) is fixedly connected to a swivel (12).

5. The linear motion noiseless guide rail for CNC machine tools according to claim 1, characterized in that: The splicing assembly comprises a bidirectional screw (2) rotatably connected to the front end of the through slot, a limiting rod (3) fixedly connected to the front end of the through slot, the bidirectional screw (2) and the limiting rod (3) being connected via two buckle blocks (6), one end of the buckle block (6) being threadedly connected to the outer wall of the bidirectional screw (2), and the other end of the buckle block (6) being slidably connected to the outer wall of the limiting rod (3).

6. The linear motion noiseless guide rail for CNC machine tools according to claim 5, characterized in that: The upper and lower sides of the splicing block (8) are both provided with slots (16), the buckle block (6) is interference-fitted in the slots (16), and the top end of the bidirectional screw (2) is provided with a hexagonal groove.

7. The linear motion noiseless guide rail for CNC machine tools according to claim 1, characterized in that: Rubber pads (7) are fixedly connected to the middle ends of the left and right sides of the protection box (1).

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