Machine tool portal frame
By designing a limit post and rotating block structure, the problem of difficult disassembly of the machine tool gantry slider was solved, enabling convenient replacement of the slider and simplifying the operation process.
Patent Information
- Application Number
- CN202422583782.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-25
- Publication Date
- 2025-10-28
- Estimated Expiration
- 2034-10-25
AI Technical Summary
The replacement of the slide block of the existing machine tool gantry is inconvenient, especially since bolt fixing requires the use of external tools, and welding requires cutting and welding, which makes disassembly difficult.
Design a machine tool gantry with a limit column and a rotating block structure. The sliding block and the connecting plate can be easily disassembled through the cooperation of the limit groove and the rotating block. Axial load is supported by a rotating shaft and bearings, and the rotating block is prevented from disengaging through the limit mechanism and connecting rod, thus simplifying the disassembly process.
It enables quick disassembly and replacement of the slider without the need for external tools, making operation simple and avoiding the complicated operations of traditional methods.
Smart Images
Figure CN223476892U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of machine tool technology, and in particular to a machine tool gantry. Background Technology
[0002] A gantry milling machine is a milling machine with a gantry and a horizontal long bed. The gantry includes a slide that slides linearly on the bed, a crossbeam, and a work head mounted on the crossbeam. Because the gantry moves linearly during operation, the slide connected to the machine tool will wear out after long-term use, requiring replacement. Existing slides are generally fixed by bolts or welding. Bolting requires external tools to separate the slide from the gantry, while welding requires cutting and then welding, making it inconvenient to disassemble and replace the slide. Utility Model Content
[0003] The purpose of this utility model is to solve the shortcomings of the prior art, which makes it inconvenient to disassemble and replace the slider, and to propose a machine tool gantry.
[0004] In order to achieve the above purpose, the present invention adopts the following technical solutions:
[0005] Design a machine tool gantry, including a connecting frame, on which a working head is slidably mounted. A connecting plate is fixedly connected to the lower end of the connecting frame. Each of the two connecting plates has four fixing holes. Each of the four fixing holes has a limit post. A slider is fixedly connected to each of the four limit posts. Each of the four limit posts has a limit groove, and a rotating block abuts in the limit groove.
[0006] Preferably, the rotating block abuts against the connecting plate, a rotating shaft is fixedly connected to the rotating block, the rotating shaft is rotatably connected to the connecting plate through a bearing, and the rotating block is limited by a limiting mechanism.
[0007] Preferably, the bearing is a thrust ball bearing.
[0008] Preferably, the limiting mechanism includes two connecting rings, which are respectively fixedly connected to the rotating block. A connecting rod is provided inside the two connecting rings, and a spring is fixedly connected to the connecting rod. The spring is fixedly connected to the rotating shaft.
[0009] Preferably, a gripping part is fixedly connected to the connecting rod.
[0010] Preferably, a positioning prism is fixedly connected to the connecting rod, and positioning grooves are provided on both connecting rings, with the positioning prism slidably disposed within the positioning grooves.
[0011] Preferably, a knob is provided on the rotating shaft.
[0012] The machine tool gantry proposed in this utility model has the following advantages: when it is necessary to disassemble and replace the slider, the slider can be disconnected from the connecting plate by rotating the rotating block and disengaging it from the limiting groove. No external tools are needed to disassemble and replace the slider, making the operation convenient and quick. Attached Figure Description
[0013] Figure 1 This is a schematic diagram of the structure of a machine tool gantry proposed in this utility model;
[0014] Figure 2 This is a perspective view of a machine tool gantry proposed in this utility model;
[0015] Figure 3 This is a schematic diagram of the structure of the slide block of a machine tool gantry according to the present invention;
[0016] Figure 4 This utility model proposes a machine tool gantry. Figure 2 A magnified view of the middle section.
[0017] In the diagram: 1. Connecting frame; 2. Working head; 3. Slider; 4. Limiting post; 5. Limiting groove; 6. Rotating shaft; 7. Rotating block; 8. Handling part; 9. Connecting rod; 10. Spring; 11. Connecting ring; 12. Positioning prism; 13. Connecting plate. Detailed Implementation
[0018] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.
[0019] Example 1: Refer to Figure 1-4 A machine tool gantry includes a connecting frame 1, on which a working head 2 is slidably mounted. The movement method of the working head 2 is existing technology and will not be described in detail here. A connecting plate 13 is fixedly connected to the lower end of the connecting frame 1. Each of the two connecting plates 13 has four fixing holes, and each of the four fixing holes has a limit post 4. A slider 3 is fixedly connected to each of the four limit posts 4. Each of the four limit posts 4 has a limit groove 5, and a rotating block 7 abuts in the limit groove 5. By positioning the rotating block 7 in the limit groove 5, it plays a longitudinal limiting role. The limit posts 4 cooperate with the fixing holes to perform lateral limiting, thereby fixing the slider 3. When it is necessary to disassemble and replace the slider 3, rotating the rotating block 7 will disengage it from the limit groove 5, thus releasing the connection between the slider 3 and the connecting plate 13. No external tools are needed to disassemble and replace the slider, making the operation convenient and quick.
[0020] The rotating block 7 abuts against the connecting plate 13. A rotating shaft 6 is fixedly connected to the rotating block 7. The rotating shaft 6 is rotatably connected to the connecting plate 13 via a bearing. The rotating block 7 is limited by a limiting mechanism. The bearing is a thrust ball bearing. Since the rotating block 7 will be subjected to axial force load, a thrust ball bearing is used to handle the axial force load, avoiding the damage that would occur if a general bearing were used.
[0021] The limiting mechanism includes two connecting rings 11, which are fixedly connected to the rotating blocks 7 respectively. A connecting rod 9 is provided inside the two connecting rings 11, and a spring 10 is fixedly connected to the connecting rod 9. The spring 10 is fixedly connected to the rotating shaft 6, and a knob is provided on the rotating shaft 6 (shown in the figure). In order to prevent the rotating blocks 7 from rotating and thus detaching from the limiting groove 5, the connecting rod 9 and the connecting ring 11 connect the two rotating blocks 7 that are on the same straight line, thereby preventing the rotating blocks 7 from rotating. When disassembly is required, the connecting rod 9 is pulled to detach it from one of the connecting rings 11, thereby releasing the connection between the two rotating blocks 7 and allowing them to rotate.
[0022] A grip part 8 is fixedly connected to the connecting rod 9. The grip part 8 is designed to facilitate gripping and moving the connecting rod 9.
[0023] When it is necessary to disassemble the slider, pull the connecting rod 9 to disengage it from one of the connecting rings 11, thereby disconnecting the connection between the two rotating blocks 7. Rotating the rotating shaft 6 will cause the rotating blocks 7 to rotate, causing the rotating blocks 7 to disengage from the limiting groove 5, thereby releasing the longitudinal limit on the slider 3 and allowing the slider 3 to move longitudinally. This will cause the limiting post 4 to disengage from the fixing hole, allowing the slider 3 to be disassembled and the worn slider 3 to be replaced.
[0024] In Example 1, the connecting rod 9 is prone to rotation within the connecting ring 11. Example 2: Refer to... Figure 1-4 In another preferred embodiment of this utility model, based on embodiment 1, a positioning prism 12 is fixedly connected to the connecting rod 9, and positioning grooves are provided on both connecting rings 11. The positioning prism 12 is slidably disposed in the positioning groove. By using the positioning prism 12 and the positioning groove, the connecting rod 9 is limited, preventing the connecting rod 9 from rotating, ensuring the connection effect of the spring 10, preventing the two ends of the spring 10 from becoming loose, and avoiding damage caused by the torsional deformation of the spring 10.
[0025] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.
Claims
1. A machine tool gantry, comprising a connecting frame (1), characterized in that, The connecting frame (1) is slidably provided with a working head (2), and the lower end of the connecting frame (1) is fixedly connected with a connecting plate (13). Each of the two connecting plates (13) has four fixing holes, and each of the four fixing holes is provided with a limit post (4). Each of the four limit posts (4) is fixedly connected with a slider (3), and each of the four limit posts (4) has a limit groove (5). A rotating block (7) abuts in the limit groove (5).
2. A machine tool gantry according to claim 1, characterized in that, The rotating block (7) abuts against the connecting plate (13). A rotating shaft (6) is fixedly connected to the rotating block (7). The rotating shaft (6) is rotatably connected to the connecting plate (13) through a bearing. The rotating block (7) is limited by a limiting mechanism.
3. A machine tool gantry according to claim 2, characterized in that, The bearing is a thrust ball bearing.
4. A machine tool gantry according to claim 2, characterized in that, The limiting mechanism includes two connecting rings (11), which are fixedly connected to the rotating block (7) respectively. A connecting rod (9) is provided inside the two connecting rings (11), and a spring (10) is fixedly connected to the connecting rod (9). The spring (10) is fixedly connected to the rotating shaft (6).
5. A machine tool gantry according to claim 4, characterized in that, A gripping part (8) is fixedly connected to the connecting rod (9).
6. A machine tool gantry according to claim 4, characterized in that, A positioning prism (12) is fixedly connected to the connecting rod (9), and positioning grooves are provided on both connecting rings (11). The positioning prism (12) is slidably disposed in the positioning groove.
7. A machine tool gantry according to claim 2, characterized in that, A knob is provided on the rotating shaft (6).