Guide rail structure of vertical spindle box

By combining a double dovetail symmetrical design with a PTFE wear-resistant plate, the vibration problem of the traditional vertical spindle box guide structure when the cutting force increases is solved, achieving higher stability and reducing wear, thus improving machining accuracy.

CN223643220UActive Publication Date: 2025-12-09HEBEI FOTON HEAVY MASCH CO LTD
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Patent Information

Application Number
CN202423158794.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-12-20
Publication Date
2025-12-09
Estimated Expiration
2034-12-20

AI Technical Summary

Technical Problem

Traditional vertical spindle box guideways are prone to structural vibration when cutting forces increase, which affects the machining accuracy of machine tools.

Method used

The vertical spindle box, featuring a double dovetail symmetrical design and combined with PTFE wear-resistant plates, evenly distributes cutting forces and reduces wear.

Benefits of technology

This improves the stability of the vertical spindle box, reduces equipment wear, and ensures machining accuracy.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of guide rail structures, in particular to a vertical spindle box guide rail structure which comprises a fixed bottom plate, limiting plates are arranged on the two sides of the fixed bottom plate, and a front cover plate is clamped above the two limiting plates. A polytetrafluoroethylene wear-resistant plate is arranged on the surface of the vertical spindle box, and the vertical spindle box is clamped between the limiting plates; the vertical spindle box has the beneficial effects that the vertical main bearing box adopts a double-dovetail symmetrical design, and the vertical spindle box is matched with the fixed bottom plate, the limiting plate and the front cover plate, so that cutting force generated by equipment can be uniformly distributed on each guide rail surface of the vertical spindle box in a cutting process, and the stability of the vertical spindle box is remarkably improved; and a polytetrafluoroethylene wear-resisting plate is arranged between the guide rail surface of the vertical spindle box and the contact surface matched with other parts, so that the stability is improved, the equipment wear is reduced, and the problem that the machining precision is influenced by an unstable structure during machining is avoided.
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Description

Technical Field

[0001] This utility model relates to the field of guide rail structure technology, specifically a vertical spindle box guide rail structure. Background Technology

[0002] The vertical spindle box guideway structure plays a crucial role in the machine tool structure. Its main functions include ensuring the precise movement and stability of the spindle box in the vertical direction, and ensuring the straightness and perpendicularity of its movement trajectory. This is essential for machining accuracy. At the same time, it is necessary to minimize vibration and offset during the movement process to improve the surface quality and dimensional accuracy of the machined parts.

[0003] In the existing technology, the spindle box in the traditional vertical spindle box guide structure is generally a fully enclosed structure, and it is a cuboid structure with an included angle of 90 degrees.

[0004] However, when using a traditional vertical spindle box guideway structure, due to its cuboid structure, the cutting force increases with the increase of torque, which causes structural vibration and affects the machining accuracy of the machine tool. Therefore, this utility model proposes a vertical spindle box guideway structure to solve the above problems. Utility Model Content

[0005] The purpose of this invention is to provide a vertical spindle box guide rail structure to solve the problems mentioned in the background art.

[0006] To achieve the above objectives, this utility model provides the following technical solution: a vertical spindle box guide rail structure, the vertical spindle box guide rail structure comprising: a fixed base plate, limit plates provided on both sides of the fixed base plate, and a front cover plate clamped above the two sets of limit plates;

[0007] The vertical spindle box has a polytetrafluoroethylene wear-resistant plate on its surface and is locked between the limiting plates.

[0008] Preferably, a stabilizing plate is fixedly installed on both sides of the fixed base plate, a limiting plate is provided at the connection between the stabilizing plate and the fixed base plate, a number of mounting threaded holes are opened on both sides of the fixed base plate, and a vertical spindle box is provided above the fixed base plate.

[0009] Preferably, the limiting plate is a square plate structure. Several limiting holes are opened at one end of the limiting plate near the fixed base plate. The limiting holes are located in front of the mounting threaded holes. A fixing screw is provided in the mounting threaded hole. The fixing screw is screwed to the mounting threaded hole. A vertical spindle box is inserted between the two sets of limiting plates.

[0010] Preferably, the front cover plate has an overall "convex" shaped structure that is fitted between the two sets of limiting plates. Several fixing threaded holes are opened on the contact surfaces of the front cover plate and the limiting plates, and fixing screws are screwed into the fixing threaded holes.

[0011] Preferably, the PTFE wear-resistant plate has an overall plate-like structure, and the PTFE wear-resistant plate is fixedly installed on the surface of the vertical spindle box by mounting screws.

[0012] Preferably, the vertical spindle box has a double dovetail symmetrical structure. The contact surface of the vertical spindle box has several fixed threaded holes, and mounting screws are screwed into the fixed threaded holes. The guide rail surfaces on both sides of the vertical spindle box are in contact with the limiting plate, the upper guide rail surface of the vertical spindle box is in contact with the surface of the front cover plate, and the lower guide rail surface of the vertical spindle box is in contact with the surface of the fixed base plate.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] This invention proposes a vertical spindle box guide rail structure. In use, the vertical spindle box adopts a double dovetail symmetrical design, and the vertical spindle box cooperates with the fixed base plate, limiting plate, and front cover plate. When the equipment is in the cutting process, the generated cutting force can be evenly distributed on each guide rail surface of the vertical spindle box, thereby significantly improving the stability of the vertical spindle box. Furthermore, polytetrafluoroethylene (PTFE) wear-resistant plates are installed between the guide rail surfaces of the vertical spindle box and the contact surfaces with other components, thereby improving stability while reducing equipment wear. This avoids the problem of structural instability affecting machining accuracy during processing. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is an exploded view of the structure of this utility model;

[0017] Figure 3 This is a cross-sectional view of the structure of this utility model;

[0018] Figure 4 This is a schematic diagram of the overall structure of the vertical spindle box of this utility model.

[0019] In the diagram: 1. Fixed base plate; 2. Limiting plate; 3. Front cover plate; 4. Vertical spindle box; 5. PTFE wear-resistant plate; 6. Stabilizing plate; 7. Mounting threaded hole; 8. Limiting hole; 9. Fixing screw; 10. Fixing threaded hole; 11. Mounting screw. Detailed Implementation

[0020] To make the objectives, technical solutions, and advantages of this utility model clear and complete, the embodiments of this utility model will be further described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are only some, not all, embodiments of this utility model, and are merely used to explain the embodiments of this utility model. They are not intended to limit the embodiments of this utility model. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0021] In the description of this utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," and "horizontal," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "a," "first," "second," "third," "fourth," "fifth," and "sixth" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0022] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0023] For purposes of simplicity and illustration, the principles of the embodiments are described primarily by way of example. In the following description, numerous specific details are set forth to provide a thorough understanding of the embodiments. However, it will be apparent to those skilled in the art that these embodiments may not be limited to these specific details in practice. In some instances, well-known methods and structures have not been described in detail to avoid unnecessarily obscuring these embodiments. Furthermore, all embodiments can be used in combination with each other.

[0024] Example 1: Please refer to Figures 1 to 4 This utility model provides a technical solution: a vertical spindle box guide rail structure, the vertical spindle box guide rail structure includes: a fixed base plate 1, limit plates 2 are provided on both sides of the fixed base plate 1, and a front cover plate 3 is clamped above the two sets of limit plates 2;

[0025] Vertical main spindle box 4, a polytetrafluoroethylene wear-resistant plate 5 is provided on the surface of the vertical main spindle box 4, and the vertical main spindle box 4 is stuck between the limit plates 2;

[0026] During use, the vertical main bearing box 4 adopts a double-swallowtail symmetric design, and the vertical main spindle box 4 is matched with the fixed bottom plate 1, the limit plate 2 and the front cover plate 3. When the equipment is cutting chips, the generated cutting force can be evenly distributed on each guide rail surface of the vertical main spindle box 4, thereby significantly improving the stability of the vertical main spindle box 4. And a polytetrafluoroethylene wear-resistant plate 5 is provided between the contact surfaces of the guide rail surface of the vertical main spindle box 4 and other components, so as to improve the stability and reduce the equipment wear at the same time, thus avoiding the problem that the unstable structure during processing affects the processing accuracy.

[0027] Embodiment 2: On the basis of Embodiment 1, in order to keep the overall structure stable during work, a vertical main spindle box 4 is provided. The vertical main spindle box 4 is of an overall double-swallowtail symmetric structure. A number of fixed threaded holes 10 are provided on the contact surface of the vertical main spindle box 4, and mounting screws 11 are screwed in the fixed threaded holes 10. The two side guide rail surfaces of the vertical main spindle box 4 are in contact with the limit plate 2, the upper guide rail surface of the vertical main spindle box 4 is in contact with the surface of the front cover plate 3, and the lower guide rail surface of the vertical main spindle box 4 is in contact with the surface of the fixed bottom plate 1; Due to the double-swallowtail symmetric design adopted by the vertical main spindle box 4, the inclusiveness of the guide rail is better. When the cutting force generated by the vertical main spindle box 4 during the chip cutting process, it can be more evenly distributed to each guide rail surface, so that the overall structure is more stable.

[0028] Stabilizing plates 6 are fixedly provided on both sides of the fixed bottom plate 1. A limit plate 2 is provided at the connection between the stabilizing plate 6 and the fixed bottom plate 1. A number of mounting threaded holes 7 are provided on both sides of the fixed bottom plate 1, and a vertical main spindle box 4 is provided above the fixed bottom plate 1; The limit plate 2 is of an overall square plate structure. A number of limit holes 8 are provided at one end of the limit plate 2 close to the fixed bottom plate 1. The limit holes 8 are directly in front of the mounting threaded holes 7. A fixed screw 9 is provided in the mounting threaded holes 7, and the fixed screw 9 is externally screwed with the mounting threaded holes 7. The vertical main spindle box 4 is clamped between the two groups of limit plates 2; The limit plate 2 is fixedly installed on both sides of the fixed bottom plate 1 through the fixed screw 9, and at the same time the vertical main spindle box 4 is stuck in it, and the contact surface of the swallowtail structure of the vertical main spindle box 4 is in contact with the surface of the fixed bottom plate 1, so as to ensure the stable operation of the vertical main spindle box 4.

[0029] The front cover plate 3 is of an overall "convex" shape structure and is clamped between the two groups of limit plates 2. A number of fixed threaded holes 10 are provided on the contact surfaces of both sides of the front cover plate 3 and the limit plates 2, and fixed screws 9 are internally screwed in the fixed threaded holes 10; The front cover plate 3 is fixed between the two ends of the two groups of limit plates 2 away from the fixed bottom plate 1 through the mounting screws 11, and the front cover plate 3 is in contact with the contact surface of the swallowtail structure of the vertical main spindle box 4, so as to ensure that the vertical main spindle box 4 maintains a stable structure and reduces vibration during work.

[0030] Example 3: Based on Example 2, a polytetrafluoroethylene (PTFE) wear-resistant plate 5 is provided to reduce wear during operation. The PTFE wear-resistant plate 5 has an overall plate-like structure and is fixedly installed on the surface of the vertical spindle box 4 by mounting screws 11. PTFE wear-resistant plates 5 are provided between the contact surface of the vertical spindle box 4 and the guide rail surface, thereby reducing wear on the structure during operation.

[0031] Working principle: In actual use, the vertical spindle housing 4 adopts a double dovetail symmetrical design, and the vertical spindle housing 4 cooperates with the fixed base plate 1, the limiting plate 2 and the front cover plate 3. When the equipment is in the chip cutting process, the cutting force generated can be evenly distributed on each guide rail surface of the vertical spindle housing 4, thereby significantly improving the stability of the vertical spindle housing 4. In addition, polytetrafluoroethylene wear-resistant plates 5 are set between the contact surfaces of the guide rail surfaces of the vertical spindle housing 4 and other components, thereby improving stability and reducing equipment wear. This avoids the problem of unstable structure affecting machining accuracy during processing.

[0032] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A vertical spindle box guide rail structure, characterized in that: The vertical main spindle box guide rail structure includes: a fixed bottom plate (1), with limiting plates (2) arranged on both sides of the fixed bottom plate (1), and a front cover plate (3) clamped above the two groups of limiting plates (2); a vertical main spindle box (4), with a polytetrafluoroethylene wear-resistant plate (5) arranged on the surface of the vertical main spindle box (4), and the vertical main spindle box (4) is clamped between the limiting plates (2).

2. The vertical spindle box guide rail structure according to claim 1, characterized in that: On both sides of the fixed bottom plate (1), stabilizing plates (6) are fixedly arranged. At the connection between the stabilizing plate (6) and the fixed bottom plate (1), limiting plates (2) are provided. A number of mounting threaded holes (7) are opened on both sides of the fixed bottom plate (1), and a vertical main spindle box (4) is arranged above the fixed bottom plate (1).

3. The vertical spindle box guide rail structure according to claim 1, characterized in that: The limiting plate (2) is integrally in the shape of a square plate. A number of limiting holes (8) are opened at one end of the limiting plate (2) close to the fixed bottom plate (1). The limiting holes (8) are directly in front of the mounting threaded holes (7). A fixed screw (9) is arranged in the mounting threaded hole (7), and the fixed screw (9) is externally threaded with the mounting threaded hole (7). The vertical main spindle box (4) is clamped between the two groups of limiting plates (2).

4. The vertical spindle box guide rail structure according to claim 1, characterized in that: The front cover plate (3) is integrally in a "convex" shape and is clamped between the two groups of limiting plates (2). A number of fixed threaded holes (10) are opened on the contact surfaces of both sides of the front cover plate (3) and the limiting plates (2), and fixed screws (9) are arranged in the fixed threaded holes (10) by screwing.

5. The vertical spindle box guide rail structure according to claim 1, characterized in that: The polytetrafluoroethylene wear-resistant plate (5) is integrally in the shape of a plate, and the polytetrafluoroethylene wear-resistant plate (5) is fixedly installed on the surface of the vertical main spindle box (4) through a mounting screw (11).

6. The vertical spindle box guide rail structure according to claim 1, characterized in that: The vertical main spindle box (4) is integrally in a double-swallowtail symmetric structure. A number of fixed threaded holes (10) are opened on the contact surface of the vertical main spindle box (4). The fixed threaded holes (10) are internally threaded with mounting screws (11). The guide rail surfaces on both sides of the vertical main spindle box (4) are in contact with the limiting plates (2), the upper guide rail surface of the vertical main spindle box (4) is in contact with the surface of the front cover plate (3), and the lower guide rail surface of the vertical main spindle box (4) is in contact with the surface of the fixed bottom plate (1).