Numerically controlled machine tool linear guide rail with adjustable guide rail spacing

Abstract

The utility model discloses a numerical control machine tool linear guide rail with adjustable guide rail spacing, including base, adjustable guide rail spacing mechanism includes setting in the support platform of base top both sides, the one side of two support platforms all has seted up the sliding slot, and the both ends of two sliding slot inner wall all slide and are equipped with the sliding block, and four sliding blocks are fixed with the connecting column between, and the inner wall rotation of one sliding slot is equipped with the double -threaded screw rod, the utility model discloses adjustable guide rail spacing structure is set up by support platform, sliding slot, limit slot, sliding block, connecting column, double -threaded screw rod, through groove, servo motor, spacing structure of limiting rod, according to the demand of the linear guide rail spacing demand, and start servo motor makes the double -threaded screw rod rotate, and then makes the distance between four sliding blocks, adjusts the spacing and can compensate the form position error of installation base surface, reduces the distortion stress of guide rail, avoids the sliding block and jams or uneven wear.

Description

Technical Field

[0001] This utility model relates to the technical field of CNC machine tools, specifically to a linear guide rail for CNC machine tools with adjustable guide rail spacing. Background Technology

[0002] Linear guides are one of the core functional components of CNC machine tools. They are mainly used to support and guide moving parts (such as worktables, tool holders, etc.) to move along a linear trajectory with high precision, high rigidity, and low friction.

[0003] Fixed guide rail spacing means that it can only be adapted to slides, tool holders or workpieces of specific sizes or structures, which limits the adaptability to machining parts of different specifications. The optimal guide rail spacing is different for different loads or machining methods (such as heavy cutting and finishing). Fixed spacing cannot optimize support rigidity according to actual working conditions, which may lead to machining vibration or increased errors. Utility Model Content

[0004] To address the aforementioned problems, the purpose of this invention is to provide a linear guide for CNC machine tools with adjustable guide rail spacing, thereby resolving the issues raised in the background section.

[0005] To achieve the above objectives, this utility model proposes a linear guide for a CNC machine tool with adjustable guide rail spacing, including a base. An adjustable guide rail spacing mechanism is provided at the upper end of the base. The adjustable guide rail spacing mechanism includes support platforms on both sides of the top of the base. A sliding groove is provided on one side of each of the two support platforms. Limit grooves are provided on both sides of the inner wall of each of the two sliding grooves. Sliding blocks are slidably provided at both ends of the inner wall of each of the two sliding grooves. The outer walls of the four sliding blocks are slidably connected to the inner walls of the four limit grooves respectively. A connecting column is fixedly provided between the four sliding blocks. A double-threaded screw is rotatably provided on the inner wall of one of the sliding grooves, and the outer wall of the double-threaded screw is threadedly connected to the inner wall of one side of each of the two sliding blocks respectively.

[0006] In one example, the lower ends of the other two sliders are provided with through slots, and a servo motor is fixedly installed on one side of the outer wall of one of the support platforms, with one end of the double-threaded screw fixedly connected to the output end of the servo motor.

[0007] In one example, a limiting rod is fixedly provided on the inner wall of another of the grooves, and the outer wall of the limiting rod is respectively inserted and connected to the inner walls of the two through grooves.

[0008] In one example, mounting holes are provided at the four corners of the top of the base, and hydraulic rods are fixedly installed on the inner walls of the four mounting holes. One end of each of the four hydraulic rods is fixedly connected to the two sides of the bottom of the two support platforms.

[0009] In one example, a limiting strip is provided at the edge of one side of the top of the base.

[0010] In one example, a switch panel is fixedly provided on one side of the outer wall of the base, and a servo motor switch is provided on one side of the switch panel, and the servo motor is electrically connected to an external power supply through the servo motor switch.

[0011] The CNC machine tool linear guide with adjustable guide rail spacing proposed in this utility model can bring the following beneficial effects: This CNC machine tool linear guide with adjustable guide rail spacing has an adjustable guide rail spacing structure composed of a support platform, slide groove, limit groove, slider, connecting column, double threaded screw, through groove, servo motor, and limit rod. According to the required linear guide rail spacing, the servo motor is started to rotate the double threaded screw, thereby adjusting the distance between the four sliders. Adjusting the spacing can compensate for the form and position errors of the mounting base surface (such as flatness and parallelism deviation), reduce the torsional stress of the guide rail, and avoid slider jamming or uneven wear. Attached Figure Description

[0012] The accompanying drawings, which are included to provide a further understanding of the present invention and constitute a part of this invention, illustrate exemplary embodiments of the present invention and, together with the description thereof, serve to explain the present invention and do not constitute an undue limitation thereof. In the drawings:

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

[0014] Figure 2 This is a schematic diagram of the slider and double-threaded lead screw of this utility model;

[0015] Figure 3 This is a schematic diagram of the limiting strip and hydraulic rod of this utility model.

[0016] In the diagram: 1. Base; 2. Support platform; 3. Slide groove; 4. Limiting groove; 5. Slider; 6. Connecting column; 7. Double threaded screw; 8. Through groove; 9. Servo motor; 10. Limiting rod; 11. Guide rail; 12. Mounting hole; 13. Hydraulic rod; 14. Limiting strip. Detailed Implementation

[0017] To more clearly illustrate the overall concept of this utility model, a detailed description will be provided below with reference to the accompanying drawings.

[0018] Example 1: This utility model provides the following... Figure 1-3The linear guide rail of a CNC machine tool with adjustable guide rail spacing shown includes a base 1. The lower ends of the two sliders 5 are provided with through grooves 8. A servo motor 9 is fixedly installed on one side of the outer wall of one of the support platforms 2, and one end of the double threaded screw 7 is fixedly connected to the output end of the servo motor 9. A limit rod 10 is fixedly installed on the inner wall of the other slide groove 3, and the outer wall of the limit rod 10 is respectively inserted and connected to the inner walls of the two through grooves 8. A switch panel is fixedly installed on one side of the outer wall of the base 1. A servo motor switch is opened on one side of the switch panel, and the servo motor 9 is electrically connected to an external power supply through the servo motor switch.

[0019] Example 2: This utility model provides the following... Figure 2 The diagram shows a linear guide for a CNC machine tool with adjustable guide rail spacing. The upper end of the base 1 is provided with an adjustable guide rail spacing mechanism. The adjustable guide rail spacing mechanism includes support platforms 2 on both sides of the top of the base 1. Each of the two support platforms 2 has a slide groove 3 on one side. Each of the two slide grooves 3 has a limit groove 4 on both sides of the inner wall of the two slide grooves 3. Each of the two slide grooves 3 has a slider 5 slidably provided at both ends of the inner wall of the four sliders 5. The outer walls of the two ends of the four sliders 5 are slidably connected to the inner walls of the four limit grooves 4 respectively. A connecting column 6 is fixedly provided between the four sliders 5. A double threaded screw 7 is rotatably provided on the inner wall of one of the slide grooves 3, and the outer wall of the double threaded screw 7 is threadedly connected to the inner wall of one side of two of the sliders 5 respectively.

[0020] Example 3: This utility model provides the following... Figure 3 The linear guide rail of a CNC machine tool with adjustable guide rail spacing is shown. There are four mounting holes 12 at the four corners of the top of the base 1. Hydraulic rods 13 are fixedly installed on the inner walls of the four mounting holes 12. One end of the four hydraulic rods 13 is fixedly connected to the two sides of the bottom of the two support platforms 2 respectively. A limit strip 14 is rotatably provided on one edge of the top of the base 1.

[0021] Working principle: First, the support platform 2 at the upper end of the device needs to be connected and fixed through the four hydraulic rods 13 at the upper end of the base 1, so as to adjust the height of the linear guide rail 11 and make it usable. In this design, an adjustable guide rail spacing structure is set up, consisting of support platform 2, slide groove 3, limit groove 4, slider 5, connecting column 6, double threaded screw 7, through groove 8, servo motor 9, and limit rod 10. According to the spacing of the linear guide rail 11, the servo motor 9 is started to rotate the double threaded screw 7, thereby adjusting the distance between the four sliders 5, thereby driving the corresponding linear guide rail 11 to adjust the spacing. Two of the sliders 5 slide on the limit rod 10 through the through groove 8 to maintain the overall stability.

[0022] The various embodiments in this specification are described in a progressive manner. Similar or identical parts between embodiments can be referred to interchangeably. Each embodiment focuses on describing the differences from other embodiments. In particular, the system embodiments are basically similar to the method embodiments, so the description is relatively simple; relevant parts can be referred to the descriptions in the method embodiments.

[0023] The above description is merely an embodiment of this utility model and is not intended to limit the scope of this utility model. Various modifications and variations can be made to this utility model by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principle of this utility model should be included within the scope of the claims of this utility model.

Claims

1. A linear guide for a CNC machine tool with adjustable guide rail spacing, comprising: The base (1) is provided with an adjustable guide rail spacing mechanism at its upper end; The adjustable guide rail spacing mechanism includes support platforms (2) set on both sides of the top of the base (1), and a sliding groove (3) is opened on one side of each of the two support platforms (2). Limiting grooves (4) are opened on both sides of the inner wall of each of the two sliding grooves (3). Sliding blocks (5) are slidably provided at both ends of the inner wall of each of the two sliding grooves (3). The outer walls of the two ends of the four sliding blocks (5) are slidably connected to the inner walls of the four limiting grooves (4). A connecting column (6) is fixedly provided between the four sliding blocks (5). A double threaded screw (7) is rotatably provided on the inner wall of one of the sliding grooves (3). The outer wall of the double threaded screw (7) is threadedly connected to the inner wall of one side of two of the sliding blocks (5). One side of each of the two adjacent sliding blocks (5) is fixedly connected to one end of the corresponding guide rail (11).

2. A linear guide for CNC machine tools with adjustable guide rail spacing according to claim 1, characterized in that: The other two sliders (5) have through slots (8) on the lower end of one side. A servo motor (9) is fixedly installed on one side of the outer wall of one of the support platforms (2), and one end of the double threaded screw (7) is fixedly connected to the output end of the servo motor (9).

3. A linear guide for CNC machine tools with adjustable guide rail spacing according to claim 1, characterized in that: Another groove (3) has a limiting rod (10) fixedly provided on its inner wall, and the outer wall of the limiting rod (10) is connected to the inner wall of the two through grooves (8) respectively.

4. A linear guide for a CNC machine tool with adjustable guide rail spacing according to claim 1, characterized in that: Mounting holes (12) are provided at the four corners of the top of the base (1). Hydraulic rods (13) are fixedly installed on the inner walls of the four mounting holes (12), and one end of the four hydraulic rods (13) is fixedly connected to the two sides of the bottom of the two support platforms (2).

5. A linear guide for a CNC machine tool with adjustable guide rail spacing according to claim 1, characterized in that: A limiting strip (14) is provided at the edge of the top side of the base (1).

6. A linear guide for a CNC machine tool with adjustable guide rail spacing according to claim 5, characterized in that: A switch panel is fixedly provided on one side of the outer wall of the base (1), and a servo motor switch is provided on one side of the switch panel. The servo motor (9) is electrically connected to an external power supply through the servo motor switch.

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