Gantry machining device and machine tool
By designing a gate structure in the gantry machining device that allows the gate to rotate along the length of the crossbeam, the problem of the protective gate needing the spindle to return to the origin in the existing technology is solved, and a more efficient tool changing process is achieved.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN HUALING INTELLIGENT EQUIP CO LTD
- Filing Date
- 2025-05-27
- Publication Date
- 2026-06-16
Smart Images

Figure CN224359837U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of gantry machining equipment, and more specifically, to a gantry machining equipment and machine tool. Background Technology
[0002] The machining environment of multi-head, multi-channel machine tools is currently highly variable, resulting in significant chip flying during processing. This chip flying significantly impacts the tool magazine. Current machine tool safety door mechanisms often employ integrated push-out sheet metal guards for protection. For example, Chinese utility model patent application number CN201821372173.6 describes a safety door that rotates vertically. This design results in excessive space occupation during opening and closing. Specifically, when changing tools, the spindle must first return to its origin to allow the safety door to rotate, then the tool magazine to extend, and finally the spindle to retrieve the tool. After retrieving the tool from the tool magazine, the spindle must then return to its origin position to close the safety door. This process, requiring the spindle to return to its origin for both opening and closing, leads to numerous tool changing steps, slow tool changing speed, and reduced machining efficiency.
[0003] Based on the above issues, how to improve the ease of opening and closing of protective doors and increase processing efficiency are technical problems that urgently need to be solved by those skilled in the art. Utility Model Content
[0004] To address the aforementioned problems, the purpose of this utility model is to provide a column and a machine tool.
[0005] The objective of this utility model is achieved through the following technical solution:
[0006] This utility model provides a gantry machining device, comprising:
[0007] The column includes a first column, a second column, and a crossbeam located between the first column and the second column, with a mounting surface provided on one side of the crossbeam;
[0008] The spindle assembly is mounted on the mounting surface;
[0009] The tool magazine is movably mounted below the crossbeam and located on the side of the mounting surface away from the spindle components;
[0010] The door is located between the first column and the second column. The door is rotated and positioned below the crossbeam along the length of the crossbeam, and the rotation axis of the door is parallel to the length of the crossbeam.
[0011] The drive unit, located between the crossbeam and the door, is used to rotate the door towards the spindle assembly to open the tool magazine's movement channel.
[0012] Furthermore, the door body is set on the bottom surface of the crossbeam and is located on the side of the crossbeam away from the mounting surface.
[0013] Furthermore, the door body includes a panel. When the door body is open, the panel is flush with or parallel to the bottom surface of the crossbeam. When the door body is closed, the panel is vertically positioned to block the movement channel below the crossbeam.
[0014] Furthermore, the door also includes side panels on both sides of the panel, which are perpendicular to the panel and bend from the side of the panel away from the mounting surface.
[0015] Furthermore, the drive component includes:
[0016] The motor is mounted on the crossbeam.
[0017] The lead screw is connected to the motor, and the door body is connected to the lead screw.
[0018] Furthermore, the drive component also includes a speed reducer, which is located between the motor and the lead screw.
[0019] Furthermore, the gantry processing device also includes a door frame, which includes a first vertical plate, a second vertical plate, and a horizontal plate. The horizontal plate is mounted on a crossbeam, and the driving component is mounted on the horizontal plate. The first vertical plate is located on one side of the first column, and the first vertical plate, the second vertical plate, and the horizontal plate form a door-shaped structure. The door body is tightly mounted inside the door-shaped structure.
[0020] Furthermore, the first vertical plate includes a first plate and a second plate. The first plate is connected to the first column, and the second plate is located on the side of the first plate away from the first column. The second plate is bent away from the mounting surface and is perpendicularly connected to the first plate.
[0021] The second vertical plate includes a third plate and a fourth plate. The third plate is connected to the second column, and the fourth plate is located on the side of the third plate away from the second column. The fourth plate is bent away from the mounting surface and is perpendicularly connected to the third plate.
[0022] When the door is closed, the second and fourth panels are parallel to the side panels of the door in the corresponding positions; and / or,
[0023] The door frame also includes a cover plate, a groove is provided on the horizontal plate, the drive component is located in the groove, and the cover plate closes over the opening of the groove.
[0024] Furthermore, the door frame also includes a chip baffle, which is located at the bottom of the door frame and below the tool magazine.
[0025] The second aspect of this utility model provides a machine tool, including a base and a worktable disposed on the base, and further including a gantry machining device as described above. The worktable, tool magazine and gantry machining device are disposed on the base, the worktable and tool magazine are located on both sides of the mounting surface, and the spindle component is movably disposed on the mounting surface of the gantry machining device.
[0026] With the door open, the tool magazine can move to the side where the worktable is located, moving from under the crossbeam to under the spindle assembly.
[0027] The beneficial effects of this invention are as follows: A driving component is installed on the crossbeam, and the door body is connected to the driving component. The driving component drives the door body to rotate along the length of the crossbeam. In actual use, when the spindle needs to change tools, the driving component drives the door body to rotate and open the door. Because the door body rotates along the length of the crossbeam, it does not occupy the space of the spindle component when opening, unlike the push-operated protective door in the prior art. The opening and closing of the door does not require the spindle component to return to its original position, reducing tool changing steps and improving processing efficiency. Attached Figure Description
[0028] The accompanying drawings, which are included to provide a further understanding of the present invention and form part of this application, illustrate exemplary embodiments of the present invention and, together with their description, serve to explain the present invention, but do not constitute an undue limitation thereof. In the drawings:
[0029] Figure 1 This is a schematic diagram of the gantry machining device of this utility model;
[0030] Figure 2 This is an exploded view of the structure of this utility model;
[0031] Figure 3 This is a schematic diagram of the rotation of the door body of this utility model;
[0032] Figure 4 This is an exploded structural diagram of the door body and door frame of this utility model.
[0033] The attached figures are labeled as follows:
[0034] 1-Column, 11-First column, 12-Second column, 13-Horizontal beam, 14-Mounting surface;
[0035] 2-Spindle assembly;
[0036] 3-Tool magazine;
[0037] 4-Door body, 41-Panel, 42-Side panel;
[0038] 5-Drive component, 51-Motor, 52-Lead screw, 53-Reducer;
[0039] 6-Door frame, 61-First vertical plate, 611-First panel, 612-Second panel, 62-Second vertical plate, 621-Third panel, 622-Fourth panel, 63-Horizontal plate, 64-Cover plate, 65-Chip baffle. Detailed Implementation
[0040] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention 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 invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.
[0041] refer to Figure 1 and Figure 2 The first aspect of this utility model provides a gantry machining device, including a column 1, a spindle assembly 2, a tool magazine 3, a gantry 4, and a drive assembly 5. The column 1 includes a first column 11, a second column 12, and a crossbeam 13. The first column 11 and the second column 12 are parallel to each other and vertically placed, maintaining a certain distance between them. This distance is designed according to actual application requirements, for example, it can be set according to the required width of the tool magazine 3. The width of the gantry 4 matches the width between the first column 11 and the second column 12, ensuring that the gantry 4 can be smoothly installed and moved between them, and can isolate the workspace and the space where the tool magazine 3 is located. The two ends of the crossbeam 13 are fixedly connected to the first column 11 and the second column 12, respectively. The crossbeam 13 is horizontally arranged and serves to connect and support the first column 11 and the second column 12, so that the entire column 1 forms a stable frame. A mounting surface 14 for mounting the spindle assembly 2 is provided on one side of the crossbeam 13. The dimensions and shape of the mounting surface 14 are designed according to the installation requirements of the spindle assembly 2 to ensure that the spindle assembly 2 can be accurately and stably mounted on the mounting surface 14 and achieve the expected motion function. The spindle assembly 2 includes a spindle for clamping the tool.
[0042] The tool magazine 3 is movably positioned below the crossbeam 13 and on the side of the mounting surface 14 away from the spindle assembly 2. The door 4 is located between the first column 11 and the second column 12, rotating along the length of the crossbeam 13 and positioned below it, with its rotation axis parallel to the length of the crossbeam 13. After the door 4 is rotated open, the tool magazine 3 moves to the area below the spindle assembly 2 for tool installation or replacement. The shape and size of the door 4 are designed according to the actual application scenario. The material of the door 4 can be selected according to actual needs, such as sheet metal or composite materials, ensuring sufficient strength and rigidity. The door 4 is connected to the drive assembly 5 via a suitable connecting device. For example, a connecting shaft can be installed on the door 4, with one end fixedly connected to the door 4 and the other end connected to the output shaft of the drive assembly 5 via a coupling. A flexible coupling can be used to compensate for minor errors that may occur during installation, while reducing vibration and impact during transmission. Through this connection method, the drive component 5 can transmit power to the door body 4, causing the door body 4 to rotate.
[0043] The drive component 5 is mounted on the crossbeam 13, specifically located below the crossbeam 13 and between it and the door body 4. It drives the door body 4 to rotate towards the spindle component 2, opening the movement channel for the tool magazine 3 to move back and forth. The drive component 5 can be installed using bolts, fixing its mounting base to pre-set mounting holes on the crossbeam 13 to ensure a secure installation and prevent loosening during operation. The drive component 5 can be equipped with a suitable power unit, such as a servo motor, stepper motor, or hydraulic motor, depending on the specific requirements. The main function of the drive component 5 is to provide power for the rotation of the door body 4. Through the movement of the drive component 5, the power is reduced and amplified by the reducer 53, then transmitted to the door body 4, causing it to rotate around the crossbeam 13. The drive component 5 can be controlled through the machine tool's control system, precisely controlling the rotation angle, speed, and direction of the door body 4 according to actual working requirements.
[0044] Specifically, the drive component 5 includes a motor 51 and a lead screw 52. The motor 51 is mounted on the crossbeam 13; the lead screw 52 is connected to the motor 51, and the door 4 is connected to the lead screw 52. When the motor 51 starts and rotates forward or backward, it drives the lead screw 52 to rotate forward or backward, which in turn drives the door 4 to rotate. For example, when the motor 51 rotates forward, it drives the door 4 to rotate to the open state, where the door 4 is in a vertical position and is either flush with or parallel to the bottom surface of the crossbeam 13. When the motor 51 rotates backward, it drives the door 4 to rotate in a retracting manner until the door panel 41 is vertically positioned to block the movement channel below the crossbeam 13. The rotation angle range of the door 4 is preferably set between the horizontal and vertical states, but it can also deviate from the horizontal and vertical states by a certain angle, as long as it can fully open and fully close the movement channel.
[0045] Specifically, refer to Figure 1 and Figure 2 When the door 4 needs to rotate, the control system sends a command to the drive component 5, and the drive component 5 starts working. The output shaft of the drive component 5 rotates, driving the door 4 to rotate through a connecting device (such as a lead screw 52) to open or close the door 4. In the actual application of the column 1 of this application, when the door 4 is opened, the door 4 isolates the tool magazine 3 from the worktable, and the door 4 prevents the chips generated at the worktable from entering the tool magazine 3. Since the door 4 rotates along the length of the crossbeam 13, it does not occupy the space of the spindle component 2 when opening, unlike the push-type protective door in the prior art. The opening and closing of the door 4 does not require the spindle component 2 to return to its original position, reducing the tool changing steps and improving processing efficiency.
[0046] In one specific implementation, reference is made to Figure 1 and Figure 2 The door body 4 is located on the bottom surface of the crossbeam 13, on the side of the crossbeam 13 furthest from the mounting surface 14. Positioning the door body 4 on the side furthest from the mounting surface 14 allows for greater space for its rotation, minimizing interference with the spindle's vertical movement. For example, when the spindle needs to grip a tool, the door body 4 needs to retract so that the tool magazine 3 can move to the tool changing position. By positioning the door body 4 furthest from the mounting surface 14, when the door body 4 is retracted and the spindle moves downwards, the rotation range of the door body 4 will not overlap with the spindle's vertical direction. This allows the spindle to move quickly without waiting for the door body 4 to retract, improving processing efficiency.
[0047] In one specific implementation, reference is made to Figure 1 and Figure 2 The door body 4 includes a panel 41. When the door body 4 is open, the panel 41 is parallel to the bottom surface of the crossbeam 13; when the door body 4 is closed, the panel 41 is perpendicular to the bottom surface of the crossbeam 13. The panel 41 can rotate at least 90°, ranging from being parallel to the bottom surface of the crossbeam 13 to being perpendicular to it. Side panels 42 are provided on both sides of the door body 4, perpendicular to the door body 4, and located on the side of the door body 4 furthest from the mounting surface 14. In actual use, when the door body 4 is lowered, the side panels 42 help to further prevent chips from entering the tool magazine 3.
[0048] In one specific implementation, reference is made to Figure 1 and Figure 2 The drive component 5 also includes a speed reducer 53, which is connected to the motor 51 and is located between the motor 51 and the lead screw 52, and is used to adjust the speed of the motor 51.
[0049] In one specific implementation, reference is made to Figure 1 and Figure 2 The column 1 also includes a door frame 6, which includes a first vertical plate 61, a second vertical plate 62, and a horizontal plate 63. The horizontal plate 63 is mounted on the crossbeam 13, and the driving component 5 is mounted on the horizontal plate 63. The first vertical plate 61 is located on one side of the first column 11, and the second vertical plate 62 is located on one side of the second column 12. The first vertical plate 61, the second vertical plate 62, and the horizontal plate 63 form a door-shaped structure, and the door body 4 is tightly mounted inside the door-shaped structure. The door frame 6 is installed, and the driving component 5 and the door body 4 are mounted on the door frame 6. The door frame 6 can be configured according to the specific structure of the driving component 5. The door frame 6 facilitates the protection of the column 1 and the installation of the driving component 5.
[0050] A groove is provided on the horizontal plate 63, and the drive component 5 is installed in the groove. Then, a cover plate 64 is used to cover the opening of the groove, sealing the drive component 5 inside the groove and protecting it. The groove provides installation space and protection for the drive component 5.
[0051] In one specific implementation, reference is made to Figure 1 and Figure 2 The first vertical plate 61 includes a first plate 611 and a second plate 612. The first plate 611 and the second plate 612 are perpendicular to each other and have an L-shaped structure when viewed from above. When the first plate 611 is installed on the column 1, the first plate 611 is connected to the first column 11. The second plate 612 is located on the side of the first plate 611 away from the first column 11, and the second plate 612 is bent away from the mounting surface 14.
[0052] The second vertical plate 62 includes a third plate 621 and a fourth plate 622, which are perpendicular to each other and form an L-shape when viewed from above. When the third plate 621 is installed on the column 1, the third plate 621 is connected to the second column 12, and the fourth plate 622 is located on the side of the third plate 621 away from the second column 12, and the fourth plate 622 is bent away from the mounting surface 14.
[0053] With the door 4 closed, the second panel 612 is parallel to the side panel 42 of the door 4 in that position, and the fourth panel 622 is parallel to the side panel 42 of the door 4 in that position. The door frame 6 provides support for the door 4, and the first vertical panel 61 and the second vertical panel 62, which have an L-shaped structure, further serve to prevent chipping.
[0054] In one specific embodiment, referring to Figures 1 and 2, the door frame 6 further includes a chip baffle 65, which is disposed at the bottom of the door frame 6 and located below the tool magazine 3. In practical applications, the tool magazine 3 can be moved from the space between the drive unit 5 and the chip baffle 64 to below the spindle unit 2, so that the spindle unit 2 can change tools. The chip baffle 65 prevents chips from the worktable area from entering the tool magazine 3 area, thus serving a chip-prevention function.
[0055] The first vertical plate 61, the second vertical plate 62, the horizontal plate 63, and the chip baffle 65 form a four-sided enclosed structure located between the horizontal beam 13, the first column 11, and the second column 12. A door 4 is installed in the central space of this enclosed structure. When the door 4 is lowered, it completely isolates the tool magazine 3 area and the worktable drive, providing a good chip prevention effect.
[0056] The second aspect of this utility model provides a machine tool, including a base and a worktable disposed on the base, and also including a gantry machining device as described above. The worktable, tool magazine 3 and column 1 are disposed on the base. The worktable and tool magazine 3 are located on both sides of the mounting surface 14. The spindle component 2 is movably disposed on the mounting surface 14. When the door 4 is open, the tool magazine 3 can move to one side of the worktable and move from below the crossbeam 13 to below the spindle component 2.
[0057] The machine tool of this application uses the above-mentioned gantry machining device. Since the gantry 4 rotates in the length direction of the crossbeam 13, it will not occupy the space in the direction of the spindle component 2 when the push protective door is opened, unlike the prior art. When the spindle component 2 changes the tool, the gantry 4 can be started at the same time, without the spindle component 2 needing to return to its original position, reducing the tool changing steps and improving machining efficiency.
[0058] The above are merely preferred embodiments of this utility model. It should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.
Claims
1. A gantry machining device, characterized in that, include: The column (1) includes a first column (11), a second column (12) and a crossbeam (13) located between the first column (11) and the second column (12), and a mounting surface (14) is provided on one side of the crossbeam (13). The spindle component (2) is disposed on the mounting surface (14); The tool magazine (3) is movably disposed below the crossbeam (13) and located on the side of the mounting surface (14) away from the spindle component (2); The door (4) is located between the first column (11) and the second column (12). The door (4) is rotatably positioned below the crossbeam (13) along the length direction of the crossbeam (13), and the rotation axis of the door (4) is parallel to the length direction of the crossbeam (13). A drive component (5) is disposed between the crossbeam (13) and the door body (4) for driving the door body (4) to rotate toward the spindle component (2) to open the moving channel of the tool magazine (3).
2. The gantry machining apparatus according to claim 1, characterized in that, The door body (4) is disposed on the bottom surface of the crossbeam (13) and is located on the side of the crossbeam (13) away from the mounting surface (14).
3. The gantry machining apparatus according to claim 2, characterized in that, The door (4) includes a panel (41). When the door (4) is open, the panel (41) is attached to or parallel to the bottom surface of the crossbeam (13). When the door (4) is closed, the panel (41) is arranged vertically to block the moving passage below the crossbeam (13).
4. The gantry machining apparatus according to claim 3, characterized in that, The door body (4) also includes side panels (42) disposed on both sides of the panel (41). The side panels (42) are perpendicular to the panel (41), and the side panels (42) are bent from the side of the panel (41) toward the side away from the mounting surface (14).
5. The gantry machining apparatus according to any one of claims 1-4, characterized in that, The driving component (5) includes: The motor (51) is mounted on the crossbeam (13); The lead screw (52) is connected to the motor (51), and the door body (4) is connected to the lead screw (52).
6. The gantry machining apparatus according to claim 5, characterized in that, The drive component (5) also includes a speed reducer (53), which is disposed between the motor (51) and the lead screw (52).
7. The gantry machining apparatus according to claim 5, characterized in that, The gantry processing device also includes a door frame (6), which includes a first vertical plate (61), a second vertical plate (62), and a horizontal plate (63). The horizontal plate (63) is mounted on a crossbeam (13), and the driving component (5) is mounted on the horizontal plate (63). The first vertical plate (61) is located on one side of the first column (11), and the second vertical plate (62) is located on one side of the second column (12). The first vertical plate (61), the second vertical plate (62), and the horizontal plate (63) form a door-shaped structure, and the door body (4) is tightly mounted inside the door-shaped structure.
8. The gantry machining apparatus according to claim 7, characterized in that, The first vertical plate (61) includes a first plate (611) and a second plate (612). The first plate (611) is connected to the first column (11). The second plate (612) is located on the side of the first plate (611) away from the first column (11), and the second plate (612) is bent away from the mounting surface (14) and perpendicularly connected to the first plate (611). The second vertical plate (62) includes a third plate (621) and a fourth plate (622). The third plate (621) is connected to the second column (12). The fourth plate (622) is located on the side of the third plate (621) away from the second column (12), and the fourth plate (622) is bent away from the mounting surface (14) and perpendicularly connected to the third plate (621). When the door (4) is closed, the second panel (612) and the fourth panel (622) are parallel to the side panels (42) of the door (4) in the corresponding orientation; and / or, The door frame (6) also includes a cover plate (64), a groove is provided on the cross plate (63), the driving component (5) is provided in the groove, and the cover plate (64) covers the opening of the groove.
9. The gantry machining apparatus according to claim 7, characterized in that, The door frame (6) also includes a chip baffle (65), which is located at the bottom of the door frame (6) and below the tool magazine (3).
10. A machine tool, comprising a base and a worktable disposed on the base, characterized in that, It also includes a gantry machining device as described in any one of claims 1-9, wherein the gantry machining device is disposed on the base, the worktable and the tool magazine (3) are located on both sides of the mounting surface (14), and the spindle component (2) is movably disposed on the mounting surface (14); When the door (4) is open, the tool magazine (3) can move to the side where the worktable is located, moving from below the crossbeam (13) to below the spindle component (2).