A gantry machining center machine tool slide rail structure
By introducing a combination of positioning frame, bracket and clamping block into the slide rail structure of the gantry machining center, and combining it with a double-headed screw worm gear transmission system, the problem of non-adjustable slider spacing is solved, machining accuracy and stability are improved, and the installation and maintenance process is simplified.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- JIANGSU TUOBANG ROBOT CO LTD
- Filing Date
- 2025-07-04
- Publication Date
- 2026-06-16
AI Technical Summary
Traditional gantry machining center slide rail structures cannot flexibly adjust the slider spacing, which means that when installing machining tables of different sizes, it is necessary to replace or redesign them, increasing the cost of use and the difficulty of maintenance.
Design a structure including a slide rail base and a slider assembly. The slider assembly consists of a positioning frame, a bracket, and a clamping block. The bracket spacing is adjusted by a driving component, and a double-ended screw and worm gear transmission system is used to achieve precise adjustment.
It achieves stable adjustment and precise matching between the slider and the slide rail, improves the machining accuracy and stability of the machine tool, and simplifies the installation and maintenance of machining tables of different sizes.
Smart Images

Figure CN224359732U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of machine tool slide rail structure, and in particular to a slide rail structure for a gantry machining center. Background Technology
[0002] In the field of CNC machine tools, gantry machining centers, as high-precision and high-efficiency machining equipment, are widely used in industries such as aerospace, automotive manufacturing, and mold processing. One of the core components of a gantry machining center is the slide rail structure, the performance of which directly affects the machining accuracy, stability, and service life of the machine tool. Traditional gantry machining center slide rail structures typically consist of a slide rail base and a slider. The slide rail base is fixed to the machine tool bed, and the slider engages with the slide rail base via sliding bearings to achieve the linear motion of the machine tool's worktable.
[0003] Regarding the aforementioned technologies, it has been found that the slider spacing of traditional slide rail structures is fixed and cannot be flexibly adjusted according to the size of the processing table. This results in the need to replace or redesign the slide rail structure when installing processing tables of different sizes, increasing the cost of use and the difficulty of maintenance. Utility Model Content
[0004] This utility model solves the problems in related technologies and proposes a slide rail structure for a gantry machining center.
[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:
[0006] A slide rail structure for a gantry machining center includes a slide rail base and a slider assembly. The slide rail base includes a base plate and a slide rod. The base plate is installed at both ends of the slide rod and is fixedly connected to the slide rod. The slider assembly includes a positioning frame, a bracket, and a clamping block. The bracket is installed on both sides of the positioning frame and is slidably connected to the positioning frame. The positioning frame is also equipped with a drive component for adjusting the distance between the brackets on both sides. The clamping block is fixedly installed on the lower end face of the bracket and is slidably connected to the slide rod.
[0007] As a preferred embodiment, the positioning frame includes a central rod and guide plates for sliding installation of the bracket. The guide plates are installed at both ends of the central rod and are fixedly connected to the central rod.
[0008] As a preferred embodiment, a device housing for mounting the drive component is provided at the center of the central rod. The device housing is fixedly connected to the central rod, and a cover is fixedly installed at both the upper and lower ends of the device housing.
[0009] As a preferred embodiment, the bracket includes a connecting plate and a right-angle support plate, the right-angle support plate being installed on the upper end face of the connecting plate and integrally formed with the connecting plate.
[0010] As a preferred embodiment, the clamping block includes an outer clamping block and a sliding bearing. The outer clamping block is fixedly installed on the lower end face of the connecting plate, and the sliding bearing is installed in the middle of the outer clamping block.
[0011] As a preferred embodiment, the driving component includes a double-ended screw, a worm gear, and a worm cooperating with the worm gear. The double-ended screw is rotatably mounted on the equipment housing, the worm gear is sleeved and fixed in the middle of the double-ended screw, and the two ends of the worm are rotatably mounted on the housing cover.
[0012] As a preferred embodiment, the middle part of the connecting plate is provided with an internally threaded tube that is threadedly connected to the double-ended screw, and the internally threaded tube is fixedly connected to the connecting plate.
[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: The slide rail structure of the gantry machining center of this invention is designed with a slide rail seat and a slider assembly in cooperation, which ensures stable sliding adjustment during use. At the same time, by setting the slider assembly with a positioning frame, a bracket, and a clamping block in cooperation, the position of the bracket on the frame can be adjusted to change the overall support width during use, which facilitates better installation on machining tables of different sizes. Moreover, the drive component allows for easy and convenient adjustment. Through reasonable structural design and the coordinated cooperation of various components, the matching accuracy between the slider and the slide rail can be easily adjusted, effectively improving the machining accuracy and stability of the machine tool. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0015] Figure 2 This is a perspective view of the slider assembly and driving component cooperating in an embodiment of this utility model;
[0016] Figure 3 yes Figure 2 A front view of the device shown;
[0017] Figure 4 yes Figure 2 Top view of the device shown;
[0018] Figure 5 This is a perspective view of the shell cover and worm gear in a specific embodiment of this utility model.
[0019] In the diagram: 1. Slide rail seat; 11. Seat plate; 12. Slide rod; 2. Slider assembly; 21. Positioning frame; 211. Center rod; 212. Guide plate; 213. Shell cover; 214. Equipment shell; 22. Bracket; 221. Connecting plate; 222. Right-angle support plate; 223. Internally threaded pipe; 23. Clamping block; 231. External clamping block; 232. Sliding bearing; 3. Driving component; 31. Double-ended screw; 32. Worm gear; 33. Worm. Detailed Implementation
[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. The following description of at least one exemplary embodiment is merely illustrative and is in no way intended to limit the present utility model or its application or use. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the scope of protection of the present utility model.
[0021] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, devices, components, and / or combinations thereof.
[0022] Unless otherwise specifically stated, the relative arrangement, numerical expressions, and values of the components and steps described in these embodiments do not limit the scope of this invention. It should also be understood that, for ease of description, the dimensions of the various parts shown in the drawings are not drawn to actual scale. Techniques, methods, and devices known to those skilled in the art may not be discussed in detail, but where appropriate, such techniques, methods, and devices should be considered part of the specification. In all examples shown and discussed herein, any specific values should be interpreted as merely exemplary and not as limitations. Therefore, other examples of exemplary embodiments may have different values. It should be noted that similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.
[0023] In the description of this utility model, it should be understood that the directional terms such as "front, back, up, down, left, right", "horizontal, vertical, horizontal" and "top, bottom" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms 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 on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours relative to the outline of each component itself.
[0024] For ease of description, spatial relative terms such as "above," "over," "on the upper surface of," "above," etc., are used herein to describe the spatial positional relationship of a device or feature as shown in the figures to other devices or features. It should be understood that spatial relative terms are intended to encompass different orientations in use or operation beyond the orientation of the device as described in the figures. For example, if the device in the figures were inverted, a device described as "above" or "above" other devices or structures would subsequently be positioned as "below" or "under" other devices or structures. Thus, the exemplary term "above" can include both "above" and "below." The device may also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatial relative descriptions used herein will be interpreted accordingly.
[0025] Furthermore, it should be noted that the use of terms such as "first" and "second" to define components is merely for the purpose of distinguishing the corresponding components. Unless otherwise stated, the above terms have no special meaning and therefore cannot be construed as limiting the scope of protection of this utility model.
[0026] Reference Figure 1 , Figure 2 and Figure 3 As shown, a slide rail structure for a gantry machining center includes a slide rail base 1 and a slider assembly 2. The slide rail base 1 includes a base plate 11 and a slide rod 12. The base plate 11 is installed at both ends of the slide rod 12 and is fixedly connected to the slide rod 12. The slider assembly 2 includes a positioning frame 21, a bracket 22, and a clamping block 23. The bracket 22 is installed on both sides of the positioning frame 21 and is slidably connected to the positioning frame 21. A driving component 3 for adjusting the distance between the two brackets 22 is also installed on the positioning frame 21. The clamping block 23 is fixedly installed on the lower end face of the bracket 22 and is slidably connected to the slide rod 12. In use, the slide rail base 1 supports the slider assembly 2, ensuring that the slider assembly 2 can be slidably adjusted. The driving component 3 is used to adjust the distance between the two brackets 22, thereby facilitating the installation and connection of machine bases of different sizes. Meanwhile, by designing the slider assembly 2 as a structure in which the positioning frame 21, bracket 22 and clamping block 23 cooperate, it is convenient to install two sets of brackets 22 symmetrically through the frame during use, and the brackets 22 are set to facilitate the fixed installation of the clamping block 23. This ensures that the slider can be slidably installed on the slide rod 12 through the clamping block 23 during installation. At the same time, the structural design of the slide rail seat 1 and the slider assembly 2 makes the installation and disassembly of the entire slide rail structure more convenient and easy to maintain.
[0027] Reference Figure 2 , Figure 3 and Figure 4As shown, the positioning frame 21 includes a central rod 211 and guide plates 212 for sliding mounting of the bracket 22. The guide plates 212 are installed at both ends of the central rod 211 and are fixedly connected to it. The central rod 211 ensures the fixed connection of the guide plates 212 at both ends, and the guide plates 212 provide guidance for the sliding of the bracket 22, ensuring the stability and accuracy of the bracket 22's sliding on the positioning frame 21, thereby further improving the overall motion accuracy of the slider assembly 2. A housing 214 for mounting the drive component 3 is located at the center of the central rod 211. The housing 214 is fixedly connected to the central rod 211, and housing covers 213 are fixedly installed at both the upper and lower ends of the housing 214. The housing 214 provides installation space for the drive component 3 and protects it from external dust, debris, etc., preventing them from affecting the normal operation of the drive component 3. The installation of the cover 213 further enhances the protection of the drive component 3, and also facilitates the inspection and maintenance of the drive component 3.
[0028] Reference Figure 2 and Figure 3 As shown, the bracket 22 includes a connecting plate 221 and a right-angle support plate 222. The right-angle support plate 222 is installed on the upper end face of the connecting plate 221 and is integrally formed with the connecting plate 221. The integrally formed structure of the connecting plate 221 and the right-angle support plate 222 makes the structure of the bracket 22 more stable, capable of withstanding greater loads, improving the service life and operational reliability of the bracket 22. At the same time, the right-angle support plate 222 facilitates better installation and use of the machine tool processing table. The clamping block 23 includes an outer clamping block 231 and a sliding bearing 232. The outer clamping block 231 is fixedly installed on the lower end face of the connecting plate 221, and the sliding bearing 232 is installed in the middle of the outer clamping block 231. The outer clamping block 231 is used to fix the sliding bearing 232. The sliding bearing 232 is slidably connected to the slide rod 12, which can reduce the friction between the slider assembly 2 and the slide rod 12, improve the smoothness of sliding of the slider assembly 2, and also reduce wear and extend the service life of the slide rail structure.
[0029] Reference Figure 2 , Figure 4 and Figure 5As shown, the driving component 3 includes a double-ended screw 31, a worm gear 32, and a worm 33 that cooperates with the worm gear 32. The double-ended screw 31 is rotatably mounted on the equipment housing 214, the worm gear 32 is sleeved and fixed in the middle of the double-ended screw 31, and the two ends of the worm 33 are rotatably mounted on the housing cover 213. The driving component 3, composed of the double-ended screw 31, worm gear 32, and worm 33, utilizes the transmission characteristics of the worm gear 32 and worm 33. Adjustment is convenient; simply rotating the worm 33 from the outside is sufficient for adjustment. It also has a self-locking function, ensuring that the position of the brackets 22 remains stable after the distance between the two side brackets 22 is adjusted, preventing displacement due to external forces, thus ensuring the fitting accuracy between the slider and the slide rail. The middle of the connecting plate 221 is provided with an internally threaded tube 223 that is threadedly connected to the double-ended screw 31. The internally threaded tube 223 is fixedly connected to the connecting plate 221. The threaded connection between the internal threaded tube 223 and the double-ended screw 31 enables the drive component 3 to accurately transmit power to the bracket 22, thereby achieving precise adjustment of the distance between the two brackets 22 and further improving the accuracy and stability of the slide rail structure.
[0030] In this embodiment, during actual installation and use, the slider assembly 2 can be slidably mounted on the slide rod 12 of the slide rail seat 1 via the clamping block 23. Then, the distance between the two end brackets 22 is adjusted according to the size of the processing table to be installed. When adjustment is needed, the worm 33 is rotated, which drives the worm wheel 32 to rotate. The worm wheel 32 drives the double-ended screw 31 to rotate. Since the internal threaded tube 223 in the middle of the connecting plate 221 is threadedly connected to the double-ended screw 31, the rotation of the double-ended screw 31 will cause the brackets 22 on both sides to slide on the guide plate 212, thereby adjusting the distance between the two end brackets 22 and thus adjusting the fitting accuracy between the clamping block 23 and the slide rod 12.
[0031] The above are preferred embodiments of this utility model. Those skilled in the art can make changes and modifications to the above embodiments. Therefore, this utility model is not limited to the specific embodiments described above. Any obvious improvements, substitutions or modifications made by those skilled in the art based on this utility model shall fall within the protection scope of this utility model.
Claims
1. A slide rail structure for a gantry machining center, comprising a slide rail base (1) and a slider assembly (2), characterized in that: The slide rail seat (1) includes a seat plate (11) and a slide rod (12). The seat plate (11) is installed at both ends of the slide rod (12) and the seat plate (11) is fixedly connected to the slide rod (12). The slider assembly (2) includes a positioning frame (21), a bracket (22) and a clamping block (23). The bracket (22) is installed on both sides of the positioning frame (21) and the bracket (22) is slidably connected to the positioning frame (21). The positioning frame (21) is also equipped with a drive component (3) for adjusting the distance between the two brackets (22). The clamping block (23) is fixedly installed on the lower end face of the bracket (22) and the clamping block (23) is slidably connected to the slide rod (12).
2. The slide rail structure of a gantry machining center according to claim 1, characterized in that: The positioning frame (21) includes a central rod (211) and a guide plate (212) for sliding installation of the bracket (22). The guide plate (212) is installed at both ends of the central rod (211) and is fixedly connected to the central rod (211).
3. The slide rail structure of a gantry machining center according to claim 2, characterized in that: The center of the middle rod (211) is provided with a device housing (214) for mounting the drive component (3). The device housing (214) is fixedly connected to the middle rod (211), and the upper and lower ends of the device housing (214) are fixedly installed with shell covers (213).
4. The slide rail structure of a gantry machining center according to claim 3, characterized in that: The bracket (22) includes a connecting plate (221) and a right-angle bracket (222). The right-angle bracket (222) is installed on the upper surface of the connecting plate (221) and is integrally formed with the connecting plate (221).
5. The slide rail structure of a gantry machining center according to claim 4, characterized in that: The clamping block (23) includes an outer clamping block (231) and a sliding bearing (232). The outer clamping block (231) is fixedly installed on the lower end face of the connecting plate (221), and the sliding bearing (232) is installed in the middle of the outer clamping block (231).
6. The slide rail structure of a gantry machining center according to claim 5, characterized in that: The drive component (3) includes a double-ended screw (31), a worm gear (32), and a worm (33) that cooperates with the worm gear (32). The double-ended screw (31) is rotatably mounted on the equipment housing (214). The worm gear (32) is sleeved and fixed in the middle of the double-ended screw (31). The two ends of the worm (33) are rotatably mounted on the housing cover (213).
7. The slide rail structure of a gantry machining center according to claim 6, characterized in that: The connecting plate (221) is provided with an internal threaded tube (223) that is threaded to the double-ended screw (31) in the middle part, and the internal threaded tube (223) is fixedly connected to the connecting plate (221).