Numerically-controlled machine tool portal frame convenient to replace and maintain
By designing a locking and unlocking structure on the gantry of a CNC machine tool, the problem of cumbersome maintenance in traditional designs is solved, enabling rapid installation and disassembly, and improving maintenance efficiency and stability.
Patent Information
- Application Number
- CN202422728455.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-09
- Publication Date
- 2025-11-11
- Estimated Expiration
- 2034-11-09
AI Technical Summary
Traditional gantry crane designs result in cumbersome maintenance and replacement processes, affecting equipment maintenance efficiency and production schedules.
A CNC machine tool gantry with locking and unlocking mechanisms was designed. It can be quickly installed and disassembled through the cooperation of sliders and locking blocks, and is combined with an elastic stabilizing device to provide support and shock absorption.
It enables rapid installation and disassembly of the gantry crane, improves maintenance efficiency, and enhances stability and safety during use.
Smart Images

Figure CN223531896U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of CNC machine tool technology, specifically to a CNC machine tool gantry that is easy to replace and maintain. Background Technology
[0002] CNC machine tools are important equipment in modern manufacturing. Their precision machining capabilities and high efficiency make them widely used in various production fields. The gantry, as a key structural component in CNC machine tools, mainly plays the role of supporting and positioning the machining parts.
[0003] Traditional gantry crane designs typically use fixed installations, which offer good stability but also mean that disassembling and repairing the entire system can be extremely cumbersome in the event of a malfunction or maintenance requirement. This fixed design not only affects maintenance efficiency but also increases equipment downtime, negatively impacting production schedules. Utility Model Content
[0004] The purpose of this utility model is to address the defects and shortcomings of the existing technology by providing a reasonably designed CNC machine tool gantry that is easy to replace and maintain, which can solve the above-mentioned defects.
[0005] To achieve the above objectives, the present invention adopts the following technical solution: it includes a machine tool, with slide rails respectively provided on both sides of the machine tool, sliders slidably mounted on the slide rails, mounting seats connected to the sliders, a gantry frame provided above the mounting seats, a locking device provided between the gantry frame and the mounting seats, and an unlocking structure and an elastic stabilizing device cooperating with the locking device provided inside the mounting seats.
[0006] Preferably, the locking device includes a slot on the top of the mounting base, the inner shape of the slot matching the outer shape of the gantry frame foot, a through groove in the gantry frame foot, two locking blocks slidably installed in the groove, and a locking block spring between the two locking blocks; a locking groove is opened in the mounting base, the width of the locking groove being the same as the width of the locking block.
[0007] Preferably, the unlocking structure includes a straight rod-shaped disassembly button that is slidably inserted on both sides of the mounting base. The width of the disassembly button is smaller than the width of the lock block. Telescopic grooves are respectively opened in the mounting base on the upper and lower sides of the disassembly button. Telescopic sliders are respectively connected to the upper and lower ends of the disassembly button. The telescopic sliders are located at the outer ends of the telescopic grooves. A button spring is provided between the rear side of the telescopic slider and the inner wall of the telescopic groove.
[0008] Preferably, the elastic stabilizing device includes a fastening slider that is slidably disposed in the locking groove. The fastening slider is an upwardly oriented "U"-shaped structure. The inner shape of the fastening slider matches the shape of the foot of the gantry frame. Several sets of guide post and guide sleeve assemblies are respectively provided on both sides of the bottom of the fastening slider. Each set of guide post and guide sleeve assemblies is fitted with a fastening spring on its outer side.
[0009] Preferably, a limiting seat is provided at the bottom center of the lock groove, and a flexible buffer pad is provided above the limiting seat.
[0010] Preferably, the top of the fastening slider is provided with a movable groove opposite to the disassembly button, and the width of the movable groove is the same as the width of the disassembly button.
[0011] The beneficial effects of this utility model after adopting the above structure are:
[0012] This CNC machine tool gantry design facilitates easy replacement and maintenance. The mounting base for installing the gantry can be quickly installed using a locking device, and the gantry can be quickly removed using an unlocking structure when it is damaged and needs repair or replacement. It is convenient and quick to install, and the design also features an elastic stabilizing device to support and dampen the gantry, enhancing its stability during use. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0014] Figure 2 This is a schematic diagram of the leg structure of the gantry in this utility model;
[0015] Figure 3 This is a sectional view of the mounting base in this utility model;
[0016] Figure 4 yes Figure 3 Enlarged view of section A in the middle;
[0017] Figure 5 This is a sectional view of the mounting base after the gantry frame is installed in this utility model.
[0018] Explanation of reference numerals in the attached figures:
[0019] 1. Machine tool; 2. Slide rail; 3. Slider; 4. Mounting base; 5. Gantry frame; 6. Locking block; 7. Locking block spring; 8. Locking groove; 9. Fastening slider; 10. Slot; 11. Fastening spring; 12. Guide post and guide sleeve assembly; 13. Limit seat; 14. Flexible buffer pad; 15. Movable groove; 16. Removal button; 17. Telescopic groove; 18. Telescopic slider; 19. Button spring. 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. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0021] See Figures 1-4 As shown, it includes a machine tool 1, with slide rails 2 on both sides of the machine tool 1, and sliders 3 slidably mounted on the slide rails 2. A mounting base 4 is connected to the sliders 3, and a gantry frame 5 is provided above the mounting base 4. A locking device is provided between the gantry frame 5 and the mounting base 4. The mounting base 4 is provided with an unlocking structure and an elastic stabilizing device that cooperates with the locking device.
[0022] See Figures 1-5 As shown, the locking device includes a slot 10 opened on the top of the mounting base 4. The inner shape of the slot 10 matches the outer shape of the foot of the gantry frame 5. A through groove is opened in the foot of the gantry frame 5. Two locking blocks 6 are slidably installed in the groove. A locking block spring 7 is provided between the two locking blocks 6. A locking groove 8 is opened in the mounting base 4. The width of the locking groove 8 is the same as the width of the locking block 6.
[0023] The unlocking structure includes a straight rod-shaped disassembly button 16 that slides into both sides of the mounting base 4. The width of the disassembly button 16 is smaller than the width of the locking block 6. Telescopic grooves 17 are respectively opened in the mounting base 4 on the upper and lower sides of the disassembly button 16. Telescopic sliders 18 are respectively connected to the upper and lower ends of the disassembly button 16. The telescopic sliders 18 are located at the outer ends of the telescopic grooves 17. A button spring 19 is provided between the rear side of the telescopic slider 18 and the inner wall of the telescopic groove 17.
[0024] The elastic stabilizing device includes a fastening slider 9 that is slidably disposed in the locking groove 8. The fastening slider 9 is an upwardly oriented "U"-shaped structure. The inner shape of the fastening slider 9 matches the shape of the foot of the gantry frame 5. Several sets of guide post and guide sleeve assemblies 12 are respectively provided on both sides of the bottom of the fastening slider 9. Each set of guide post and guide sleeve assemblies 12 is fitted with a fastening spring 11 on its outer side.
[0025] See Figures 1-5 As shown, a limiting seat 13 is provided at the bottom center of the locking groove 8, and a flexible buffer pad 14 is provided above the limiting seat 13; the top of the fastening slider 9 is respectively provided with a movable groove 15 opposite to the disassembly button 16, and the width of the movable groove 15 is the same as the width of the disassembly button 16.
[0026] The principle and usage process of this utility model:
[0027] During installation, align the bottom of the gantry frame 5 with the slots 10 and insert them. Simultaneously, push the two locking blocks 6 into the gantry frame 5. The locking block springs 7 are compressed. As the gantry frame 5 is pressed down, it will drive the fastening slider 9 to press down, thereby compressing the fastening spring 11. As the fastening slider 9 moves downward, the gap between the top surfaces of the two ends of the fastening slider 9 and the top surface of the lock groove 8 also increases. When the gap reaches the height of the locking block 6, the locking block 6 can pop out to both sides under the push of the locking block spring 7, locking the gantry frame 5. The operator can then stop pressing down the gantry frame 5. Under the action of the fastening spring 11, the fastening slider 9 pushes the locking block 6 upward to ensure the stable installation of the locking block 6.
[0028] During use, the fastening spring 11 can maintain support for the gantry 5 and weaken the vibration generated on the gantry 5, reducing noise; the limiting seat 13 can limit the position of the gantry 5 and the fastening slider 9, preventing the fastening slider 9 from falling too much when the gantry 5 is subjected to pressure exceeding the force of the fastening spring 11, thereby enhancing safety.
[0029] When the gantry 5 needs to be replaced, press down on the gantry 5 to loosen the gap between the locking block 6 and the fastening slider 9. At the same time, press several release buttons 16 inward. The telescopic slider 18 compresses the button spring 19, and the release button 16 pushes the locking block 6 inward, causing the locking block 6 to retract. Then, the gantry 5 can be pulled out upward. During the upward movement of the gantry 5, the fastening slider 9 rises accordingly, and the release button 16 moves within the movable groove 15, thereby preventing the fastening slider 9 from squeezing and damaging the release button 16. After removing the gantry 5, the release button 16 can be released, and a new gantry 5 can be installed, or the removed gantry 5 can be repaired and then installed.
[0030] It should be understood that the above-described specific embodiments of this utility model are merely illustrative or explanatory of the principles of this utility model and do not constitute a limitation thereof. Therefore, any modifications, equivalent substitutions, improvements, etc., made without departing from the spirit and scope of this utility model should be included within the protection scope of this utility model. Furthermore, the appended claims are intended to cover all variations and modifications falling within the scope and boundaries of the appended claims, or equivalent forms of such scope and boundaries.
Claims
1. A CNC machine tool gantry that is easy to replace and maintain, comprising a machine tool (1), characterized in that: The machine tool (1) is provided with slide rails (2) on both sides, and slide blocks (3) are slidably installed on the slide rails (2). A mounting seat (4) is connected to the slide block (3). A gantry frame (5) is provided above the mounting seat (4). A locking device is provided between the gantry frame (5) and the mounting seat (4). The mounting seat (4) is provided with an unlocking structure and an elastic stabilizing device that cooperates with the locking device.
2. The CNC machine tool gantry frame that is easy to replace and maintain according to claim 1, characterized in that: The locking device includes a slot (10) on the top of the mounting base (4), the inner shape of the slot (10) matches the outer shape of the leg of the gantry frame (5), a through groove is opened in the leg of the gantry frame (5), two locking blocks (6) are slidably installed in the groove, and a locking block spring (7) is provided between the two locking blocks (6); a locking groove (8) is opened in the mounting base (4), and the width of the locking groove (8) is the same as the width of the locking block (6).
3. A CNC machine tool gantry frame that is easy to replace and maintain according to claim 2, characterized in that: The unlocking structure includes a straight rod-shaped disassembly button (16) that is slidably inserted on both sides of the mounting base (4). The width of the disassembly button (16) is smaller than the width of the locking block (6). The mounting base (4) on the upper and lower sides of the disassembly button (16) is provided with telescopic grooves (17). The upper and lower ends of the disassembly button (16) are respectively connected to telescopic sliders (18). The telescopic sliders (18) are located at the outer end of the telescopic grooves (17). A button spring (19) is provided between the rear side of the telescopic sliders (18) and the inner wall of the telescopic grooves (17).
4. A CNC machine tool gantry frame that is easy to replace and maintain according to claim 3, characterized in that: The elastic stabilizing device includes a fastening slider (9) that is slidably disposed in the locking groove (8). The fastening slider (9) is an upwardly oriented "U" shaped structure. The inner shape of the fastening slider (9) matches the foot shape of the gantry frame (5). Several sets of guide post and guide sleeve assemblies (12) are respectively provided on both sides of the bottom of the fastening slider (9). Each set of guide post and guide sleeve assemblies (12) is fitted with a fastening spring (11) on its outer side.
5. A CNC machine tool gantry frame that is easy to replace and maintain according to claim 4, characterized in that: A limiting seat (13) is provided at the bottom center of the locking groove (8), and a flexible buffer pad (14) is provided above the limiting seat (13).
6. A CNC machine tool gantry frame that is easy to replace and maintain according to claim 5, characterized in that: The top of the fastening slider (9) is provided with a movable groove (15) opposite to the disassembly button (16), and the width of the movable groove (15) is the same as the width of the disassembly button (16).