A heavy plate gantry milling machine convenient to clean

Abstract

The present application relates to the technical field of machining, more particularly, the present application provides a thick metal plate planer, which is convenient to clean, comprising a planer body, a machining table and a roof beam arranged on the planer body, a milling machine connected below the roof beam, a plurality of T-shaped grooves arranged on the machining table, a filling mechanism installed in the T-shaped grooves, and a mounting frame, a vertical plate and a erecting driving part of the filling mechanism; the mounting frame is inserted into the T-shaped groove, and the upper end surface of the mounting frame is lower than the table surface of the machining table; when the workpiece is placed on the machining table, the vertical plate is pressed and the mounting frame is driven upward by the erecting driving part, so that the upper end surface of the mounting frame is flush with the upper end surface of the vertical plate on the table surface of the machining table, thereby closing the T-shaped groove, which can prevent metal debris from falling into the T-shaped groove and avoid the T-shaped groove being blocked by debris, thereby reducing the workload of manual cleaning of the T-shaped groove.

Description

Technical Field

[0001] This invention relates to the field of machining technology, and more specifically, to a gantry milling machine for thick metal plates that is easy to clean. Background Technology

[0002] A gantry milling machine is a large milling machine with a gantry frame structure, mainly used for processing large or heavy metal workpieces. A gantry milling machine typically includes a milling machine body, a machining table mounted on the machine body, and a top beam. A milling machine arm that can move along the top beam is connected below it. The machining table is used to hold the workpiece to be processed. Due to the need to process large workpieces, the machining table area of ​​a gantry milling machine is usually large, and multiple T-slots are cut along the length or width of the machining table.

[0003] T-slots are an essential structure on machining tables, primarily used for mounting and fixing workpieces. Specifically, a T-slot has a T-shaped cross-section, consisting of a narrower upper opening and a wider lower cavity. To fix the workpiece, a T-pin is inserted into the side of the T-slot from one end. The T-pin includes a connecting post and a locking block fixed to one end of the connecting post. The width of the locking block is greater than the width of the opening but less than the width of the cavity, allowing it to engage within the cavity without dislodging. The width of the connecting post is less than the width of the opening, allowing it to extend upwards from the opening. After insertion, other fixing fixtures are connected to the top of the connecting post, or it can be used in conjunction with pressure plates, fixing plates, or pads. Tightening nuts or bolts then presses the workpiece firmly onto the machining table.

[0004] When a gantry milling machine performs milling operations such as slotting and milling flat surfaces on thick metal plates, the high-speed cutting of the machine's cutting tools generates a large amount of metal chips. These chips are small in size but heavy in weight, and under the influence of cutting force and cutting fluid, they splash in all directions. Due to the large machining table area and the numerous T-slots with their openings facing upwards, a large amount of chips will scatter on the machining table surface and fall from the openings of the T-slots into the receiving cavities inside the T-slots. As machining continues, the chips continuously accumulate in the T-slots, even clogging them, making it difficult to smoothly insert T-pins during subsequent installation, thus affecting the clamping and fixation of the workpiece.

[0005] After machining, the debris accumulated in the T-slots is difficult to clean, which has always been a pain point in gantry milling machine operations. Currently, cleaning debris in the T-slots mainly relies on manual operation: operators use cutting fluid to flush the debris from one end of the T-slot to the other; or they use long, thin tools (such as hooks or brushes) to reach into the T-slot and remove the debris section by section; or they use an air gun to blow the debris out from the end of the slot. However, due to the narrow space inside the T-slot, and the fact that pre-installed T-pins, locking blocks, and other components can obstruct the cleaning operation, the above cleaning methods are not only inefficient and labor-intensive, but also incomplete, with debris easily remaining in the corners of the slot; at the same time, the large amount of cutting fluid used for flushing also increases the consumption of cutting fluid and the cost of waste fluid treatment.

[0006] Existing technologies also include some waste collection mechanisms installed on the side of the processing table, such as collection troughs or negative pressure chip suction devices, which can collect some of the debris scattered on the surface of the processing table. However, these mechanisms can usually only collect debris on the surface of the processing table, and cannot effectively collect debris that has fallen into the T-slot. Cleaning the inside of the T-slot still relies on manual operation, failing to fundamentally solve the problem of debris clogging in the T-slot.

[0007] Furthermore, the workpieces processed by gantry milling machines are typically large and heavy, requiring overhead cranes or hoists to lift them onto the machining table during loading. During this lifting process, the workpiece is suspended in the air and prone to swaying. If there are protruding components on the machining table (such as extended vertical plates, clamping rods, etc.), the operator's view can be easily obstructed while directing the lifting, and the swaying workpiece is likely to collide with these protruding components, causing damage to the workpiece or equipment, or even leading to safety accidents. Therefore, how to achieve chip prevention in the T-slots while avoiding obstruction and collisions caused by protruding components on the table during loading is also a problem that needs to be solved.

[0008] The purpose of this invention is to address the shortcomings of existing technologies by providing a gantry milling machine for thick metal plates that is easy to clean. This solves the problems of metal debris falling and clogging the T-slots, time-consuming and labor-intensive cleaning, and the tendency of protruding parts on the table to cause obstruction and collision when loading heavy workpieces. Summary of the Invention

[0009] The purpose of this invention is to address the shortcomings of existing technologies by providing a gantry milling machine for thick metal plates that is easy to clean. This solves the problems of metal debris falling and clogging the T-slots, time-consuming and labor-intensive cleaning, and the tendency of protruding parts on the table to cause obstruction and collision when loading heavy workpieces.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a gantry milling machine for thick metal plates that is easy to clean, comprising a milling machine body and a machining table and a top beam disposed on the milling machine body, with a milling machine connected below the top beam, the machining table having a plurality of T-shaped grooves, and further comprising a filling mechanism installed in the T-shaped grooves, the filling mechanism comprising a mounting frame, a vertical plate and a mounting drive unit; The mounting bracket is inserted into the T-slot, and the upper end of the mounting bracket is lower than the table surface of the processing table; there are two upright plates, which are respectively located on both sides of the mounting bracket along the width direction of the T-slot and inserted into the T-slot, with the upper end of the upright plate extending out of the table surface of the processing table; The mounting drive unit is located at the end of the mounting frame, and the upright plate is connected to the mounting frame through the mounting drive unit. When the workpiece is placed on the processing table, the upright plate is pressed down by the workpiece and moves downward, and drives the mounting frame upward through the mounting drive unit, so that the upper end surface of the mounting frame is flush with the upper end surface of the upright plate on the table surface, thereby closing the T-slot.

[0011] A further technical solution of this application: the mounting drive unit includes a fixed frame, an extension and a lifting bar; the fixed frame is installed outside the processing table and opposite to the T-slot, and a lifting cavity is provided on the fixed frame; one end of the extension is connected to the mounting frame, and the other end of the extension extends out of the T-slot and is connected to the lifting bar, and the lifting bar is slidably installed in the lifting cavity.

[0012] A further technical solution of this application: the mounting drive unit further includes a first side rack, a second side rack, a side rod, and a first rotating tooth; the first side rack is disposed at the end of the upright plate and located outside the T-slot, the second side rack is disposed on the extension and opposite to the first side rack, the side rod is installed on the side of the fixing frame, and the first rotating tooth is rotatably installed at the end of the side rod and meshes between the first side rack and the second side rack.

[0013] A further technical solution of this application: two first side racks are provided and are respectively mirror-symmetrically arranged at the ends of the two vertical plates, and two second side racks are provided and are respectively arranged on opposite sides of the extension.

[0014] A further technical solution of this application: the filling mechanism further includes a T-pin, the T-pin including a connecting post and a locking block fixed to one end of the connecting post, the T-pin being installed on the mounting frame, the connecting post extending upward from the mounting frame, and the connecting post being able to move up and down relative to the mounting frame; when the mounting frame is raised upward, the connecting post remains stationary.

[0015] A further technical solution of this application: the mounting frame is provided with a plurality of partition blocks, the plurality of partition blocks are spaced apart along the length direction of the mounting frame, and the mounting frame is divided into a plurality of mounting slots, the mounting frame is provided with an opening at the upper end of the mounting slot, the T-pin is located in the mounting slot, and the connecting post passes through the opening and extends upward from the opening; The vertical plate also has an extension opening corresponding to the width of the card block. The extension opening is used to reduce obstruction when the T-pin moves upward.

[0016] A further technical solution of this application: the erection drive unit also includes a return spring, which is disposed in the lifting cavity. One end of the return spring is connected to the bottom of the lifting cavity and the other end is connected to the lifting bar, for driving the lifting bar to reset.

[0017] A further technical solution of this application: the filling mechanism further includes a driving component, which is connected to the lifting bar for driving the lifting bar to move downward along the lifting cavity, so that the mounting frame and the upright plate move downward to be level with the table surface of the processing table.

[0018] A further technical solution of this application: The fixed frame has a gear cavity, and the drive assembly includes a mounting shaft rotatably mounted in the gear cavity, a second rotating tooth fixed on the mounting shaft, a transmission tooth fixed at the end of the mounting shaft, and a drive tooth meshing with the transmission tooth; the lifting bar has a rack on the side near the second rotating tooth, and the second rotating tooth meshes with the rack; one end of the mounting shaft extends out of the fixed frame and is fixed with the transmission tooth; the axis of the drive tooth is used to connect to a power source.

[0019] A further technical solution of this application: the lower end of the fixing frame is provided with a fixing screw, and the fixing frame is fixed to the processing table by the fixing screw.

[0020] Compared with the prior art, the technical solution provided by this invention has the following advantages: 1. This invention, by setting a filling mechanism in the T-slot, ensures that when the workpiece is placed on the processing table, the upright plate is pressed down, and the mounting frame is moved upward by the drive unit, so that the upper end face of the mounting frame is flush with the upper end face of the upright plate on the processing table surface, thereby sealing the T-slot. This prevents metal debris from falling into the T-slot, avoiding blockage and reducing the amount of manual cleaning required. During the upward movement of the mounting frame, debris that has fallen into the T-slot and is located above the mounting frame can be simultaneously pushed out to the upper surface of the processing table, allowing for uniform cleaning along with the processing table surface, reducing the burden of manual cleaning by flushing each slot with cutting fluid. Furthermore, the filling mechanism is an independent component, installed as a whole in the T-slot, requiring no modification to the processing table body. It can be adapted to different types of T-slot worktables, is easy to install, and has good versatility.

[0021] 2. This invention retains the original clamping and fixing function of the T-slot by pre-installing the T-pin in the mounting slot of the mounting frame and extending it through the opening; the connecting column can move up and down relative to the mounting frame, and the connecting column remains stationary when the mounting frame is raised, so that the top of the connecting column is always flush with the table surface, which prevents chips and does not affect the workpiece clamping; the extension opening on the upright plate can reduce the obstruction when the T-pin moves up, making it easier to remove and adjust the T-pin, and by setting a pull spring, the mounting frame can be automatically reset after the workpiece is removed, and the upright plate can be extended back to the table surface. The structure is simple and can achieve automatic reset. At the same time, the drive component drives the mounting frame and the upright plate to move down to be flush with the table surface. There are no protruding parts on the table surface when loading, which can avoid the upright plate obstructing the loading of heavy workpieces by the crane, and helps to reduce the risk of collision during loading. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure of the filling mechanism not installed in the T-groove of the present invention; Figure 3 For the present invention Figure 2 Enlarged structural diagram at point B; Figure 4 For the present invention Figure 1 Enlarged structural diagram at point A; Figure 5 This is a schematic diagram of the filling mechanism of the present invention with the length omitted. Figure 6 For the present invention Figure 5 Enlarged structural diagram at point C; Figure 7 This is a cross-sectional view of the filling mechanism of the present invention with the length omitted. Figure 8 For the present invention Figure 7A magnified structural diagram at point D.

[0023] Explanation of the labels in the diagram: 1. Milling machine body; 2. Machining table; 3. Milling machine; 4. Top beam; 5. T-slot; 6. Filling mechanism; 601. Vertical plate; 602. Connecting column; 603. Clamping block; 604. Mounting slot; 605. Extension port; 606. Mounting bracket; 607. First side rack; 608. Connecting hole; 609. Extension; 610. Fixing bracket; 611. Transmission gear; 612. Second side rack; 613. Lifting bar; 614. First rotating gear; 615. Side rod; 616. Mounting shaft; 617. Driving gear; 618. Fixing screw; 619. Pull-back spring; 620. Lifting cavity; 621. Second rotating gear; 622. Partition block. Detailed Implementation

[0024] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. 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 are within the scope of protection of the present invention. The present invention will be further described below with reference to the embodiments.

[0025] Please see Figures 1 to 8 The present invention provides a gantry milling machine for thick metal plates that is easy to clean, such as... Figure 1 As shown, the gantry milling machine of this application includes a milling machine body 1, a machining table 2 and a top beam 4 on the milling machine body 1, and a milling machine 3 connected below the top beam 4. Figure 2 As shown, the machining table 2 has several T-slots 5, which are used to install and fix fixtures for the workpiece. Figure 3 As shown, a filling mechanism 6 is installed inside the T-shaped groove 5. The filling mechanism 6 is used to seal the T-shaped groove 5 to prevent metal debris from falling into the T-shaped groove 5.

[0026] like Figure 1 ,as well as Figures 4 to 8 As shown, the filling mechanism 6 includes a mounting frame 606, upright plates 601, and a mounting drive unit. The mounting frame 606 is inserted into the T-slot 5, and its upper end surface is lower than the table surface of the processing table 2. Two upright plates 601 are provided, located on opposite sides of the mounting frame 606 along the width direction of the T-slot 5 and inserted into the T-slot 5, with their upper ends extending beyond the table surface of the processing table 2. The mounting drive unit is located at the end of the mounting frame 606, and the two upright plates 601 are connected to the mounting frame 606 via the mounting drive unit. The ends of the two upright plates 601 extend outside the T-slot 5 and are connected to the mounting drive unit.

[0027] The mounting bracket 606 is a long strip structure extending along the length of the T-slot 5. Multiple partition blocks 622 are provided inside the mounting bracket 606, spaced apart along its length, dividing the mounting bracket 606 into multiple mounting slots 604. An opening 608 is provided at the upper end of each mounting slot 604 in the mounting bracket 606.

[0028] The filling mechanism 6 also includes a T-pin, which consists of a connecting post 602 and a locking block 603. The locking block 603 is fixed to one end of the connecting post 602, and the T-pin is T-shaped. The T-pin is pre-installed in the mounting slot 604. The connecting post 602 passes through the opening 608 and extends upward from the opening 608, with its top end flush with the table surface of the processing table 2. It is used to clamp and fix the workpiece on the processing table 2 with fixing plates, pads, etc. The connecting post 602 can move up and down relative to the mounting bracket 606: when the mounting bracket 606 is raised, the connecting post 602 remains stationary, and its top end is always flush with the table surface of the processing table 2; when it is necessary to remove or adjust the T-pin, the connecting post 602 can be actively pulled to move it upward. The opening 608 is the structure through which the connecting post 602 passes and extends to the outside of the mounting bracket 606.

[0029] like Figure 6 As shown, the vertical plate 601 also has an extension opening 605 corresponding to the width of the locking block 603. When the connecting column 602 is actively pulled to move the T-pin upward, the locking block 603 can pass through the extension opening 605. The extension opening 605 is used to reduce the obstruction of the vertical plate 601 when the T-pin moves upward, and facilitates the removal and adjustment of the T-pin.

[0030] like Figure 1 ,as well as Figures 4 to 8 As shown, the mounting drive unit includes a fixed frame 610, an extension 609, and a lifting bar 613. The fixed frame 610 is mounted on the outside of the processing table 2 and is positioned opposite to the T-slot 5; a lifting cavity 620 is formed on the fixed frame 610, and the lifting bar 613 is slidably mounted in the lifting cavity 620. One side of the extension 609 is connected to the side of the mounting frame 606, and the other side of the extension 609 extends out of the T-slot 5 and connects to the lifting bar 613.

[0031] The mounting drive unit also includes a first side rack 607, a second side rack 612, a side rod 615, and a first rotating tooth 614. Two first side racks 607 are provided, mirror-symmetrically arranged at the ends of the two upright plates 601 and located outside the T-slot 5. Two second side racks 612 are provided, respectively arranged on opposite sides of the extension 609 and opposite to the corresponding first side racks 607. The side rod 615 is mounted on both sides of the fixing frame 610. The first rotating tooth 614 is rotatably mounted at the end of the side rod 615, located between the first side rack 607 and the second side rack 612, and meshes with both the first side rack 607 and the second side rack 612.

[0032] The transmission relationship of the aforementioned drive unit is as follows: when the upright plate 601 moves downward under the pressure of the workpiece, the first side rack 607 moves downward with the upright plate 601, driving the first rotating tooth 614 to rotate; when the first rotating tooth 614 rotates, it drives the second side rack 612 meshing with it to move in the opposite direction, that is, to move upward, thereby driving the extension 609 and the mounting bracket 606 to move upward, so that the upper end surface of the mounting bracket 606 is flush with the upper end surface of the upright plate 601 on the table surface of the processing table 2.

[0033] When machining a workpiece using the gantry milling machine of this application, the workpiece is hoisted and placed on the machining table 2. The workpiece presses against the vertical plate 601, causing the vertical plate 601 to move downwards under force, and driving the mounting bracket 606 upwards via the drive unit. When the upper end face of the mounting bracket 606, the top of the connecting column 602, the table surface of the machining table 2, and the upper end face of the vertical plate 601 are aligned, the mounting bracket 606 closes the T-slot 5, preventing metal debris from falling into the T-slot 5. At the same time, as the mounting bracket 606 moves upwards, it can simultaneously push the debris that has fallen into the T-slot 5 and is located above the mounting bracket 606 upwards to the upper surface of the machining table 2, facilitating unified cleaning along with the machining table surface.

[0034] like Figure 8 As shown, to facilitate the reset of the filling mechanism 6 after the workpiece is removed, a return spring 619 is installed at the bottom of the lifting cavity 620, and the return spring 619 is connected to the bottom surface of the lifting bar 613. When there is no workpiece pressing down on the vertical plate 601 on the processing table 2, the return spring 619 pulls the lifting bar 613 downward, and the lifting bar 613 drives the extension 609 and the mounting bracket 606 to move downward and reset; at the same time, the vertical plate 601 moves upward in the opposite direction through the transmission of the first side rack 607, the first rotating gear 614, and the second side rack 612, so that the vertical plate 601 extends out of the table surface of the processing table 2 again, and remains in a ready state, ready for the next workpiece placement.

[0035] like Figure 1 ,as well as Figures 4 to 8As shown, to facilitate the hoisting and loading of heavy workpieces, the filling mechanism 6 is also equipped with a drive assembly. The fixed frame 610 has a gear cavity inside, within which a mounting shaft 616 is rotatably mounted. A second rotating gear 621 is fixedly mounted on the mounting shaft 616. A rack is provided on the side of the lifting bar 613 near the second rotating gear 621, and the second rotating gear 621 meshes with the rack of the lifting bar 613. One end of the mounting shaft 616 extends out of the fixed frame 610 and is fixedly equipped with a transmission gear 611. An active gear 617 meshes with the transmission gear 611 on the outside of the fixed frame 610, and the axis of the active gear 617 can be connected to a power source.

[0036] During loading, the power source drives the active gear 617 to rotate. The active gear 617 drives the mounting shaft 616 to rotate via the transmission gear 611. The second rotating gear 621 rotates with the mounting shaft 616 and, through meshing with the rack of the lifting bar 613, drives the lifting bar 613 and the extension 609 to move downward. This, in turn, drives the mounting frame 606 and the upright plate 601 to move downward, so that the upper end face of the upright plate 601 and the upper end face of the mounting frame 606 are flush with the table surface of the processing table 2. The table surface of the processing table 2 has no protruding parts, which facilitates the crane to lift heavy workpieces and avoids the upright plate 601 from obstructing the load during loading.

[0037] like Figure 1 ,as well as Figures 4 to 8 As shown, the lower end of the fixing frame 610 is provided with a fixing screw 618. The fixing frame 610 is fixed to the processing table 2 by the fixing screw 618, thereby fixing the filling mechanism 6 as a whole at the position of the T-shaped groove 5.

[0038] A method for using a gantry milling machine for thick metal plates that is easy to clean includes the following steps: S1. The filling mechanism 6 is installed in the T-slot 5 of the processing table 2, so that the mounting bracket 606 is inserted in the T-slot 5 and its upper end is lower than the table surface of the processing table 2, and the upper end of the upright plate 601 extends out of the table surface of the processing table 2. S2. Before loading, the power source drives the active gear 617, which drives the mounting shaft 616 and the second rotating gear 621 to rotate via the transmission gear 611. The second rotating gear 621 drives the lifting bar 613 and the extension 609 to move downward via the rack of the lifting bar 613, so that the mounting frame 606 and the upright plate 601 move downward to be level with the table surface of the processing table 2, and then the workpiece is hoisted onto the processing table 2. S3. After the workpiece is placed on the processing table 2, the workpiece presses the vertical plate 601, causing the vertical plate 601 to move downward. The vertical plate 601 is driven by the first side rack 607, the first rotating gear 614, and the second side rack 612 to drive the extension 609 and the mounting bracket 606 to move upward, so that the upper end face of the mounting bracket 606 is flush with the upper end face of the vertical plate 601 on the table surface of the processing table 2, thereby closing the T-shaped groove 5 and pushing the debris that has fallen into the T-shaped groove 5 to the upper surface of the processing table 2. S4. Start milling machine 3 to perform milling processing on the workpiece; S5. After processing, the workpiece is removed. The pull-back spring 619 drives the lifting bar 613 and the mounting bracket 606 to return to their original position downwards. The upright plate 601 moves upwards in the opposite direction and extends out of the table surface of the processing table 2 again through the transmission of the first side rack 607, the first rotating tooth 614 and the second side rack 612. S6. Clean the debris from the upper surface of processing table 2.

[0039] In summary, this invention, by incorporating a filling mechanism within the T-slot, prevents metal debris from falling into the T-slot when the workpiece is placed on the machining table. The upward movement of the mounting bracket, driven by a support drive unit, aligns the upper surface of the mounting bracket with the upper surface of the support plate, thus sealing the T-slot. This prevents debris from clogging the T-slot and reduces the amount of manual cleaning required. Furthermore, the upward movement of the mounting bracket simultaneously ejects debris already in the T-slot and positioned above it onto the upper surface of the machining table, allowing for unified cleaning along with the surface and reducing the need for manual flushing with cutting fluid. Moreover, the filling mechanism is an independent component, integrally installed within the T-slot, requiring no modification to the machining table itself. This allows for compatibility with different types of T-slot worktables, facilitating installation and versatility. Okay, by pre-installing the T-pins in the mounting slots of the mounting bracket and extending them through the openings, the original clamping and fixing function of the T-slots is retained; the connecting column can move up and down relative to the mounting bracket, and the connecting column remains stationary when the mounting bracket is raised, so that the top of the connecting column is always flush with the table surface, which prevents chips and does not affect the workpiece clamping; the extension opening on the upright plate can reduce the obstruction when the T-pins move upward, making it easier to remove and adjust the T-pins, and by setting a return spring, the mounting bracket can be automatically reset after the workpiece is removed, and the upright plate can be extended back out of the table surface. The structure is simple and can achieve automatic reset. At the same time, the drive component drives the mounting bracket and the upright plate to move downward to be flush with the table surface. There are no protruding parts on the table surface when loading, which can avoid the upright plate obstructing the workpieces when the crane is hoisting them, and helps to reduce the risk of collision during loading.

[0040] The present invention and its embodiments have been described above illustratively. This description is not restrictive, and the figures shown are only one embodiment of the present invention; the actual structure is not limited thereto. Therefore, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the present invention, such designs should fall within the protection scope of the present invention.

[0041] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A gantry milling machine for thick metal plates that is easy to clean, comprising a milling machine body (1) and a machining table (2) and a top beam (4) disposed on the milling machine body (1), wherein a milling machine (3) is connected below the top beam (4), and the machining table (2) is provided with a plurality of T-slots (5), characterized in that: It also includes a filling mechanism (6) installed in the T-slot (5), the filling mechanism (6) including a mounting bracket (606), a vertical plate (601) and a mounting drive unit; The mounting bracket (606) is inserted into the T-slot (5), and the upper end of the mounting bracket (606) is lower than the table surface of the processing table (2); there are two upright plates (601), which are respectively located on both sides of the mounting bracket (606) along the width direction of the T-slot (5) and inserted into the T-slot (5), and the upper end of the upright plate (601) extends out of the table surface of the processing table (2); The mounting drive unit is located at the end of the mounting frame (606), and the upright plate (601) is connected to the mounting frame (606) through the mounting drive unit. When the workpiece is placed on the processing table (2), the upright plate (601) is pressed down by the workpiece and moves downward, and drives the mounting frame (606) upward through the mounting drive unit, so that the upper end surface of the mounting frame (606) is flush with the upper end surface of the upright plate (601) on the table surface of the processing table (2), thereby closing the T-slot (5).

2. The gantry milling machine for thick metal plates that is easy to clean according to claim 1, characterized in that, The mounting drive unit includes a fixed frame (610), an extension (609), and a lifting bar (613); the fixed frame (610) is installed outside the processing table (2) and opposite to the T-slot (5), and a lifting cavity (620) is provided on the fixed frame (610); one end of the extension (609) is connected to the mounting frame (606), and the other end of the extension (609) extends out of the T-slot (5) and is connected to the lifting bar (613), and the lifting bar (613) is slidably installed in the lifting cavity (620).

3. A gantry milling machine for thick metal plates that is easy to clean, as described in claim 2, is characterized in that... The mounting drive unit further includes a first side rack (607), a second side rack (612), a side rod (615), and a first rotating tooth (614); the first side rack (607) is disposed at the end of the upright plate (601) and located outside the T-groove (5); the second side rack (612) is disposed on the extension (609) and opposite to the first side rack (607); the side rod (615) is installed on the side of the fixing frame (610); and the first rotating tooth (614) is rotatably installed at the end of the side rod (615) and meshes between the first side rack (607) and the second side rack (612).

4. A gantry milling machine for thick metal plates that is easy to clean, as described in claim 3, is characterized in that... The first side rack (607) has two and is respectively mirror-symmetrically arranged at the ends of the two upright plates (601), and the second side rack (612) has two and is respectively arranged on opposite sides of the extension (609).

5. A gantry milling machine for thick metal plates that is easy to clean, as described in claim 1, characterized in that, The filling mechanism (6) further includes a T-pin, which includes a connecting post (602) and a locking block (603) fixed to one end of the connecting post (602). The T-pin is installed on the mounting bracket (606). The connecting post (602) extends upward from the mounting bracket (606) and can move up and down relative to the mounting bracket (606). When the mounting bracket (606) is raised upward, the connecting post (602) remains stationary.

6. A gantry milling machine for thick metal plates that is easy to clean, as described in claim 5, is characterized in that... The mounting bracket (606) is provided with a plurality of partition blocks (622), which are spaced apart along the length of the mounting bracket (606) and divide the mounting bracket (606) into a plurality of mounting slots (604). The mounting bracket (606) is provided with an opening (608) at the upper end of the mounting slot (604). The T-pin is located in the mounting slot (604). The connecting post (602) passes through the opening (608) and extends upward from the opening (608). The vertical plate (601) is also provided with an extension opening (605) corresponding to the width of the card block (603). The extension opening (605) is used to reduce the obstruction when the T-pin moves upward.

7. A gantry milling machine for thick metal plates that is easy to clean, as described in claim 2, is characterized in that... The erection drive unit also includes a pull-back spring (619), which is disposed in the lifting cavity (620). One end of the pull-back spring (619) is connected to the bottom of the lifting cavity (620), and the other end is connected to the lifting bar (613), which is used to drive the lifting bar (613) to reset.

8. A gantry milling machine for thick metal plates that is easy to clean, as described in claim 2, characterized in that, The filling mechanism (6) further includes a driving component, which is connected to the lifting bar (613) for driving the lifting bar (613) to move downward along the lifting cavity (620), so that the mounting bracket (606) and the upright plate (601) move downward to be level with the table surface of the processing table (2).

9. A gantry milling machine for thick metal plates that is easy to clean, as described in claim 8, characterized in that, The fixed frame (610) has a gear cavity. The drive assembly includes a mounting shaft (616) rotatably mounted in the gear cavity, a second rotating tooth (621) fixed on the mounting shaft (616), a transmission tooth (611) fixed at the end of the mounting shaft (616), and a drive tooth (617) meshing with the transmission tooth (611). The lifting bar (613) has a rack on the side near the second rotating tooth (621), and the second rotating tooth (621) meshes with the rack. One end of the mounting shaft (616) extends out of the fixed frame (610) and is fixed with the transmission tooth (611). The axis of the drive tooth (617) is used to connect to a power source.

10. A gantry milling machine for thick metal plates that is easy to clean, as described in claim 2, characterized in that, The lower end of the fixing frame (610) is provided with a fixing screw (618), and the fixing frame (610) is fixed to the processing table (2) by the fixing screw (618).

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