Linear sliding table roller sliding block structure for wide platform

Abstract

The utility model discloses a linear sliding table roller sliding block structure for a wide platform, belongs to the technical field of cylindrical guide rail sliding table structures, aims at solving the problems that installation depends on a high-precision tool or repeated disassembly and assembly and later-stage fine adjustment cannot be achieved, and comprises a platform plate, a cylindrical guide rail, a prepressing adjusting screw, a roller sliding block and a fixing bolt. Fixing bolts are symmetrically connected to the left side and the right side of the platform plate in a threaded mode, fixing threaded grooves are symmetrically formed in the top faces of roller sliding blocks, the roller sliding blocks are connected to the interiors of the fixing threaded grooves through the fixing bolts in a threaded mode and installed below the platform plate, and top roller bearings and side roller bearings are arranged on the side faces of the roller sliding blocks correspondingly; according to the utility model, the prepressing adjusting screw and the adjusting chute are arranged, and the prepressing adjusting screw is screwed to enable the roller sliding block to slightly move left and right, so that the gap between the roller sliding block and the cylindrical guide rail is adjusted, the contact gap between the top roller bearing and the cylindrical guide rail and the contact gap between the side roller bearing and the cylindrical guide rail are increased, and accurate prepressing is realized.

Description

Technical Field

[0001] This utility model belongs to the technical field of cylindrical guide rail slide structure, specifically relating to a linear slide roller slider structure for wide platforms. Background Technology

[0002] Linear slides are widely used in motion control of automated equipment. According to the type of guide rail, linear slides can be divided into cylindrical guide rail slides and square guide rail slides.

[0003] Existing cylindrical guide rail slide systems typically consist of two guide rails, left and right, with two or three sliders mounted on each rail to support the platform. During installation, this type of structure often suffers from uneven load distribution among the slider rollers due to issues such as parallelism, height differences, and assembly errors between the left and right guide rails. This is especially problematic at high speeds, leading to concentrated stress on some roller bearings, resulting in damage, sluggish movement, noise, and even equipment vibration, severely impacting service life and accuracy. Furthermore, traditional installation methods rely on high-precision tooling or repeated disassembly, measurement, and manual adjustment, making the operation complex and inefficient.

[0004] Therefore, a linear slide roller slider structure for wide platforms is needed to solve the problems of existing technologies where installation relies on high-precision tooling or repeated disassembly and assembly, and there is no way to fine-tune it later. Utility Model Content

[0005] The purpose of this invention is to provide a linear slide roller slider structure for wide platforms to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a linear slide roller slider structure for a wide platform, comprising a platform plate, a cylindrical guide rail, a preload adjustment screw, a roller slider, and fixing bolts. The platform plate has symmetrically threaded fixing bolts on its left and right sides. The roller slider has symmetrically threaded fixing grooves on its top surface. The roller slider is threaded into the fixing grooves via fixing bolts and installed below the platform plate. The roller slider has a top roller bearing and a side roller bearing on its sides, which are respectively rolled to the cylindrical guide rail. The platform plate has symmetrically threaded preload adjustment screws on its left side. The top surface of the roller slider has an adjustment groove that mates with the preload adjustment screw.

[0007] It should be noted in the solution that the platform plate has a central hole inside, which is used to install a speed reducer or a motor.

[0008] It is worth noting that there are four roller sliders, symmetrically arranged around the bottom surface of the platform plate, and each roller slider has two top roller bearings and two side roller bearings inside.

[0009] It should be further noted that the head of the preload adjusting screw is tapered with an angle of 30-45 degrees.

[0010] In a preferred embodiment, the top surface of the left-side roller slider is provided with an adjustment groove, which is a 45-degree inclined groove structure, and the center line of the preload adjustment screw is offset from the center line of the adjustment groove.

[0011] In a preferred embodiment, the top roller bearing is symmetrically arranged above the roller slider facing the cylindrical guide rail, and the side roller bearing is symmetrically arranged on one side of the roller slider facing the cylindrical guide rail.

[0012] In a preferred embodiment, the top roller bearing and the side roller bearing may be CF bearings or ordinary bearings.

[0013] Compared with the prior art, the linear slide roller slider structure for a wide platform provided by this utility model has at least the following beneficial effects:

[0014] (1) By tightening the preload adjustment screw and the adjustment groove, the roller slider can be moved slightly left and right to adjust the gap between the roller slider and the cylindrical guide rail, thereby increasing the contact gap between the top roller bearing, the side roller bearing and the cylindrical guide rail, and achieving precise preload. This structure allows the preload value to be corrected again by finely adjusting the preload adjustment screw without disassembling the components after installation, thus achieving rapid and precise on-site adjustment and significantly improving maintenance efficiency and on-site adaptability.

[0015] (2) With the set roller slider, top roller bearing, side roller bearing and fixing bolt, each component is easy to disassemble and replace, and easy to maintain and repair; this structure effectively suppresses platform shaking and vibration without affecting normal movement, improves the overall system accuracy and life, and is suitable for high precision equipment. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of the present invention;

[0017] Figure 2 This is a cross-sectional structural diagram of the present invention;

[0018] Figure 3 This is a schematic diagram of the roller slider structure of this utility model;

[0019] Figure 4 This is a schematic cross-sectional view of the preload adjustment screw position of this utility model.

[0020] In the diagram: 1. Platform plate; 2. Cylindrical guide rail; 3. Preload adjustment screw; 4. Roller slider; 5. Center hole; 6. Top roller bearing; 7. Side roller bearing; 8. Adjustment groove; 9. Fixing bolt; 10. Fixing threaded groove. Detailed Implementation

[0021] The present invention will be further described below with reference to the embodiments.

[0022] Please see Figure 1-4 This utility model provides a linear slide roller slider structure for a wide platform, including a platform plate 1, a cylindrical guide rail 2, a preload adjustment screw 3, a roller slider 4, and fixing bolts 9. The left and right sides of the platform plate 1 are symmetrically threaded with fixing bolts 9. The top surface of the roller slider 4 is symmetrically provided with fixing thread grooves 10. The roller slider 4 is threaded into the fixing thread grooves 10 by fixing bolts 9 and installed below the platform plate 1. The sides of the roller slider 4 are respectively provided with a top roller bearing 6 and a side roller bearing 7, which are respectively rolledly connected to the cylindrical guide rail 2. The left side of the platform plate 1 is symmetrically threaded with a preload adjustment screw 3. The top surface of the roller slider 4 is provided with an adjustment groove 8 that cooperates with the preload adjustment screw 3.

[0023] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the platform plate 1 has a central hole 5 inside, which is used to install a speed reducer or a motor.

[0024] A speed reducer or motor is installed through the center hole 5 inside the platform plate 1 and connected to the roller slider 4 or an external transmission mechanism to drive the platform plate 1 to move linearly along the cylindrical guide rail 2.

[0025] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that there are four roller sliders 4, which are symmetrically arranged around the bottom surface of the platform plate 1, and each roller slider 4 has two top roller bearings 6 and two side roller bearings 7 inside.

[0026] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the head of the preload adjusting screw 3 is conical with an angle of 30-45 degrees. The top surface of the left roller slider 4 is provided with an adjusting groove 8, which is a 45-degree groove structure. The center line of the preload adjusting screw 3 is offset from the center line of the adjusting groove 8.

[0027] The function of the preload adjusting screw 3 depends on the 45-degree adjusting groove 8 machined on the roller slider 4 and the 30-45 degree tapered head of the preload adjusting screw 3 itself; when the preload adjusting screw 3 is pressed down, it not only generates a downward force, but also makes the roller slider 4 move horizontally as a whole. Through this design, the left wheel slider 4 can be finely adjusted relative to the right reference roller slider 4, thereby adjusting the contact gap between the top roller bearing 6, the side roller bearing 7 and the cylindrical guide rail 2, and realizing preload control.

[0028] As can be seen from the above working process: by tightening the preload adjustment screw 3 and the adjustment groove 8, the roller slider 4 moves slightly left and right, thereby adjusting the gap between the roller slider 4 and the cylindrical guide rail 2, increasing the contact gap between the top roller bearing 6, the side roller bearing 7 and the cylindrical guide rail 2, and achieving precise preload; this structure allows the preload value to be corrected again by simply adjusting the preload adjustment screw 3 without disassembling the components after installation, achieving rapid and precise on-site adjustment, which significantly improves maintenance efficiency and on-site adaptability.

[0029] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the top roller bearing 6 is symmetrically arranged above the cylindrical guide rail 2 on the roller slider 4, and the side roller bearing 7 is symmetrically arranged on the side of the roller slider 4 facing the cylindrical guide rail 2.

[0030] Further as Figure 1 , Figure 2 and Figure 3 As shown, it is worth noting that the top roller bearing 6 and the side roller bearing 7 can be CF bearings or ordinary bearings.

[0031] Select different types of bearings according to actual needs to meet different speed, load and precision requirements.

[0032] This solution involves the following working process: During use, the two right-side roller sliders 4 serve as reference fixed sliders, directly mounted below the platform plate 1 via fixing bolts 9. The two left-side roller sliders 4 are adjusted by rotating the preload adjustment screws 3 until their heads contact the adjustment grooves 8. Tightening the preload adjustment screws 3 causes the roller sliders 4 to move slightly left and right, thereby adjusting the gap between the roller sliders 4 and the cylindrical guide rail 2. This increases the preload between the top roller bearing 6, the side roller bearing 7, and the cylindrical guide rail 2, achieving precise preload. After adjustment, the two fixing bolts 9 are tightened to ensure the overall stability of the structure. This structure allows for readjustment of the preload value after installation without disassembling the components, simply by fine-tuning the preload adjustment screws 3, significantly improving maintenance efficiency and on-site adaptability.

[0033] In summary: By tightening the preload adjusting screw 3 and adjusting groove 8, the roller slider 4 can move slightly left and right, thereby adjusting the gap between the roller slider 4 and the cylindrical guide rail 2, increasing the contact gap between the top roller bearing 6, the side roller bearing 7 and the cylindrical guide rail 2, and achieving precise preload. This structure allows the preload value to be corrected again after installation without disassembling the components, simply by fine-tuning the preload adjusting screw 3, enabling rapid and precise on-site adjustment, significantly improving maintenance efficiency and on-site adaptability. The roller slider 4, top roller bearing 6, side roller bearing and fixing bolt 9 make each component easy to disassemble and replace, facilitating maintenance and upkeep. This structure effectively suppresses platform sway and vibration without affecting normal movement, improving the overall system accuracy and lifespan, and is suitable for high-precision equipment.

Claims

1. A linear slide roller slider structure for a wide platform, comprising a platform plate (1), a cylindrical guide rail (2), a preload adjusting screw (3), a roller slider (4), and a fixing bolt (9), characterized in that: The platform plate (1) is symmetrically threaded with fixing bolts (9) on the left and right sides. The roller slider (4) is symmetrically provided with fixing thread grooves (10) on the top surface. The roller slider (4) is threadedly connected to the inside of the fixing thread grooves (10) by fixing bolts (9) and installed below the platform plate (1). The roller slider (4) is provided with a top roller bearing (6) and a side roller bearing (7) on the side. The top roller bearing (6) and the side roller bearing (7) are respectively rolledly connected to the cylindrical guide rail (2). The platform plate (1) is symmetrically threaded with a preload adjusting screw (3). The roller slider (4) is provided with an adjusting groove (8) that cooperates with the preload adjusting screw (3) on the top surface.

2. The linear slide roller slider structure for a wide platform according to claim 1, characterized in that: The platform plate (1) has a central hole (5) inside, which is used to install a speed reducer or a motor.

3. The linear slide roller slider structure for a wide platform according to claim 2, characterized in that: There are four roller sliders (4), which are symmetrically arranged around the bottom surface of the platform plate (1), and each roller slider (4) has two top roller bearings (6) and two side roller bearings (7) inside.

4. The linear slide roller slider structure for a wide platform according to claim 3, characterized in that: The head of the preload adjusting screw (3) is tapered with an angle of 30-45 degrees.

5. A linear slide roller slider structure for a wide platform according to claim 4, characterized in that: The top surface of the roller slider (4) on the left is provided with an adjustment groove (8), which is a 45-degree groove structure. The center line of the preload adjustment screw (3) is offset from the center line of the adjustment groove (8).

6. A linear slide roller slider structure for a wide platform according to claim 5, characterized in that: The top roller bearing (6) is symmetrically arranged above the roller slider (4) facing the cylindrical guide rail (2), and the side roller bearing (7) is symmetrically arranged on one side of the roller slider (4) facing the cylindrical guide rail (2).

7. A linear slide roller slider structure for a wide platform according to claim 6, characterized in that: The top roller bearing (6) and the side roller bearing (7) can be CF bearings or ordinary bearings.

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