Undriven large-span gantry drilling and tapping machine frame

Abstract

This utility model relates to the field of drilling and tapping machine frame technology, and discloses a driveless, large-span gantry drilling and tapping machine frame, including a support frame. A crossbeam is slidably connected to the top of the support frame, and a support plate is provided on the side wall of the crossbeam. Multiple support legs are fixedly connected to the bottom of the support frame, and each support leg has a threaded post internally connected to a threaded post. A base is fixedly connected to the bottom of each threaded post. An adjustment assembly is provided on the outer wall of each support leg. The adjustment assembly includes a rotating sleeve and a resistance bar, with the rotating sleeve rotatably connected to the outer wall of the support leg. In this utility model, the rotating sleeve rotates on the outer wall of the support leg by operating the resistance bar. Subsequently, the rotating sleeve, through its threaded connection with the threaded post, causes the threaded post to slide up and down inside the support leg, thereby achieving the effect of adapting the frame to uneven ground. This solves the problem that uneven ground can easily cause the frame to tilt, affecting drilling and tapping accuracy, and improves the stability and horizontal accuracy of the frame placement.

Description

Technical Field

[0001] This utility model relates to the field of drilling and tapping machine frame technology, and in particular to a non-drive, large-span gantry drilling and tapping machine frame. Background Technology

[0002] The driveless, large-span gantry drilling and tapping machine frame is a support device developed for drilling and tapping operations on large-sized, heavy workpieces in the industrial processing field. It is mainly used in engineering machinery, steel structure manufacturing, and ship component processing. Its core function is to provide a stable load-bearing frame and a large-span operating range for the drilling and tapping actuators. Because this type of frame does not require an integrated active power transmission system and relies solely on a rigid structure for manual or semi-automatic positioning and adjustment, it places extremely high demands on the frame's horizontal stability and ground adaptability. It must ensure that while enduring drilling and tapping cutting reaction forces over long periods, it maintains the precise movement trajectory of the actuators to guarantee processing quality.

[0003] The existing support structure of non-drive large-span gantry drilling and tapping machine frames mostly adopts an integrated fixed support leg design. The bottom of the support leg is directly connected to the workshop floor through anchor bolts. If it is necessary to adjust the level of the frame, metal shims of different thicknesses need to be inserted between the support leg and the ground. During adjustment, the anchor bolts need to be repeatedly removed and the shims replaced.

[0004] Existing non-drive, large-span gantry drilling and tapping machine frames suffer from uneven ground conditions, leading to frame tilting and affecting drilling and tapping accuracy. Due to factors such as construction errors, equipment wear and tear, and foundation settlement, workshop floors commonly exhibit localized height differences. Existing support structures cannot achieve independent height adjustment for each support leg, only allowing for rough leveling using shims. This makes it difficult to achieve an ideal level frame, resulting in tilting of the crossbeams and actuators. During drilling, this easily causes hole position misalignment, and during tapping, uneven force on the tap not only reduces machining accuracy but also easily leads to tap breakage or workpiece scrap, increasing production costs and rework workload. Therefore, a non-drive, large-span gantry drilling and tapping machine frame is proposed to solve these problems. Utility Model Content

[0005] To overcome the above deficiencies, this utility model provides a driveless, large-span gantry drilling and tapping machine frame, which aims to improve the problem in the prior art where uneven ground causes the frame to tilt and affects the drilling and tapping accuracy.

[0006] To achieve the above objectives, the present invention adopts the following technical solution: A driveless, large-span gantry drilling and tapping machine frame includes a support frame, a crossbeam slidably connected to the top of the support frame, a support plate provided on the side wall of the crossbeam, multiple support legs fixedly connected to the bottom of the support frame, threaded columns threaded inside each support leg, a base fixedly connected to the bottom of the threaded columns, and an adjustment component provided on the outer wall of the support leg. The adjustment assembly includes a rotating sleeve and a resistance bar. The rotating sleeve is rotatably connected to the outer wall of the support leg. The inner wall of the rotating sleeve is threadedly connected to the outer wall of the threaded column. The inner wall of the resistance bar is fixedly connected to the outer wall of the rotating sleeve. A connecting plate is slidably connected to the outer wall of the support plate. An installation plate is provided on the side wall of the connecting plate. A drilling machine is fixedly connected to the outer wall of the installation plate. A connecting assembly is provided inside the installation plate.

[0007] As a further description of the above technical solution: The connecting assembly includes a hollow column, the outer wall of which is fixedly connected to the inner wall of the mounting plate, and one end of which is slidably connected inside the connecting plate.

[0008] As a further description of the above technical solution: A retaining ball is slidably connected inside the hollow column, and the retaining ball engages with the connecting plate.

[0009] As a further description of the above technical solution: A fixed plate is fixedly connected inside the hollow column, and a sliding column is slidably connected inside the fixed plate.

[0010] As a further description of the above technical solution: One end of the sliding column is fixedly connected to a trapezoidal column, and the other end of the sliding column is fixedly connected to a pressing cap. The outer wall of the trapezoidal column is in contact with the outer wall of the ball.

[0011] As a further description of the above technical solution: A sliding disc is fixedly connected to the outer wall of the sliding column, and the sliding disc is slidably connected to the inner wall of the hollow column.

[0012] As a further description of the above technical solution: A spring is fitted on the outer wall of the sliding column. One end of the spring is fixedly connected to the side wall of the fixed disk, and the other end of the spring is fixedly connected to the side wall of the sliding disk.

[0013] This utility model has the following beneficial effects: 1. In this utility model, the rotating sleeve is driven to rotate on the outer wall of the support leg by operating the resistance bar. Then, the rotating sleeve drives the threaded column to slide up and down inside the support leg through the threaded connection with the threaded column. The threaded column then drives the base fixedly connected at the bottom to move up and down synchronously. This allows the bases corresponding to the four support legs to be adjusted in height independently, thereby achieving the effect of adapting the frame to uneven ground. This solves the problem that uneven ground can easily cause the frame to tilt and affect the drilling and tapping accuracy. It improves the stability and level accuracy of the frame placement and ensures accurate positioning of the execution components during subsequent processing.

[0014] 2. In this utility model, when disassembling the drilling and tapping machine, pressing the pressing cap causes the sliding column to slide on the fixed plate inside the hollow column. The sliding column drives the trapezoidal column to move synchronously, so that the trapezoidal column no longer squeezes the ball, and the ball disengages from the connecting plate. During installation, the spring pushes the sliding plate, causing the sliding column and trapezoidal column to reset. The trapezoidal column squeezes the ball and engages with the connecting plate, thereby enabling the mounting plate and connecting plate to be quickly disassembled and assembled. This achieves the effect of quick assembly and disassembly of the drilling and tapping machine, solving the problem of cumbersome and time-consuming disassembly and assembly steps during drilling and tapping machine malfunction repair, and improving the convenience of equipment maintenance and overall usage efficiency. Attached Figure Description

[0015] Figure 1 This is a three-dimensional schematic diagram of the driveless large-span gantry drilling and tapping machine frame proposed in this utility model; Figure 2 This is a schematic diagram of the rotating sleeve structure of the driveless large-span gantry drilling and tapping machine frame proposed in this utility model. Figure 3 This is a schematic diagram of the mounting plate structure of the driveless large-span gantry drilling and tapping machine frame proposed in this utility model; Figure 4 This is a schematic diagram of the connecting plate structure of the driveless large-span gantry drilling and tapping machine frame proposed in this utility model; Figure 5 for Figure 4 Enlarged view of point A in the middle.

[0016] Legend: 1. Bracket; 2. Support leg; 3. Crossbeam; 4. Support plate; 5. Threaded column; 6. Rotating sleeve; 7. Resistance bar; 8. Base; 9. Connecting plate; 10. Mounting plate; 11. Drilling machine; 12. Hollow column; 13. Sliding column; 14. Trapezoidal column; 15. Clamping ball; 16. Spring; 17. Sliding disc; 18. Press cap; 19. Fixing disc. Detailed Implementation

[0017] 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.

[0018] Reference Figure 1 - Figure 5This utility model provides an embodiment of a driveless large-span gantry drilling and tapping machine frame, including a support 1. The support 1 provides overall structural support to ensure the stability and rigidity of the frame. A crossbeam 3 is slidably connected to the top of the support 1. The crossbeam 3 is allowed to move horizontally to adapt to the needs of large-span drilling and tapping. A support plate 4 is provided on the side wall of the crossbeam 3. The support plate 4 is used to enhance the lateral support of the crossbeam 3 and provide a sliding connection base. Multiple support legs 2 are fixedly connected to the bottom of the support 1. The support legs 2 are used to support the height of the frame and provide vertical stability. Each support leg 2 is internally threaded with a threaded post 5. The threaded post 5 can be adjusted to achieve fine height adjustment through thread adjustment to adapt to different working planes. A base 8 is fixedly connected to the bottom of the threaded post 5. The base 8 is used to expand the support area and improve the anti-slip and stability of the frame. An adjustment component is provided on the outer wall of the support leg 2. The adjustment component is used to easily adjust the height of the support leg 2 to ensure the frame is horizontal. The adjustment assembly includes a rotating sleeve 6 and a resistance bar 7. The rotating sleeve 6 moves the threaded post 5 by rotation, achieving height adjustment. The resistance bar 7 provides friction, making the adjustment process more controllable. The rotating sleeve 6 is rotatably connected to the outer wall of the support leg 2. This rotatable connection allows for smooth rotation and reduces wear. The inner wall of the rotating sleeve 6 is threadedly connected to the outer wall of the threaded post 5. This threaded connection converts rotational motion into linear movement, precisely controlling the height. The inner wall of the resistance bar 7 is fixedly connected to the outer wall of the rotating sleeve 6. The resistance bar 7 enhances the grip of the rotating sleeve 6, facilitating manual adjustment. In operation, a connecting plate 9 is slidably connected to the outer wall of the support plate 4. The connecting plate 9 allows the drilling and tapping machine 11 to move vertically to adapt to different processing heights. A mounting plate 10 is provided on the side wall of the connecting plate 9. The mounting plate 10 is used to fix and install the drilling and tapping machine 11, providing a stable connection point. The drilling and tapping machine 11 is fixedly connected to the outer wall of the mounting plate 10. The drilling and tapping machine 11 performs drilling and tapping operations and is the core functional component of the frame. A connecting component is provided inside the mounting plate 10 to ensure a firm connection between the mounting plate 10 and the drilling and tapping machine 11 and prevent loosening.

[0019] Reference Figure 1 - Figure 5The connecting assembly includes a hollow column 12, which serves as the main structure of the assembly, accommodating and guiding internal parts to achieve a detachable connection between the mounting plate 10 and the connecting plate 9. The outer wall of the hollow column 12 is fixedly connected to the inner wall of the mounting plate 10, ensuring its stability and allowing the connecting force to act directly on the mounting plate 10. One end of the hollow column 12 is slidably connected inside the connecting plate 9, allowing the mounting plate 10 to quickly mate or separate from the connecting plate 9 via the hollow column 12. A retaining ball 15 is slidably connected inside the hollow column 12. The ball joint 15 acts as a locking component, its sliding action enabling locking and releasing functions. The ball joint 15 engages with the connecting plate 9, securing the mounting plate 10 firmly to the connecting plate 9 to prevent loosening during processing. A fixed plate 19 is fixedly connected inside the hollow column 12, providing a fixed mounting base for the internal components and serving as a support point for the spring 16. A sliding column 13 is slidably connected inside the fixed plate 19, its sliding motion driving the trapezoidal column 14 to move, thereby controlling the position of the ball joint 15. One end of the sliding column 13 is fixedly connected to a trapezoidal column. The trapezoidal column 14 uses its inclined surface structure to push the locking ball 15 radially, achieving engagement and release. A pressing cap 18 is fixedly connected to the other end of the sliding column 13, providing an operating interface for manual pressing to release the engagement. The outer wall of the trapezoidal column 14 is in contact with the outer wall of the locking ball 15, and the contact surface converts the axial movement of the sliding column 13 into the radial movement of the locking ball 15. A sliding disc 17 is fixedly connected to the outer wall of the sliding column 13, moving synchronously with the sliding column 13 and providing another support point for the spring 16. The sliding disc 17 slides... The sliding connection, attached to the inner wall of the hollow column 12, ensures that the sliding disk 17 and the sliding column 13 move smoothly along the axis. A spring 16 is sleeved on the outer wall of the sliding column 13, providing continuous elastic force so that the sliding column 13 and the locking ball 15 automatically return to the engaged position when no external force is applied. One end of the spring 16 is fixedly connected to the side wall of the fixed disk 19, which ensures the absolute fixation of one end of the spring 16. The other end of the spring 16 is fixedly connected to the side wall of the sliding disk 17, which ensures that the elastic force is effectively applied to the sliding disk 17, thereby pushing the entire sliding mechanism to reset.

[0020] Working principle: First, leveling is performed. The resistance bar 7 drives the rotating sleeve 6 to rotate on the outer wall of the support leg 2. The rotating sleeve 6, through its threaded connection with the threaded column 5, causes the threaded column 5 to slide up and down inside the support leg 2. The threaded column 5 then drives the base 8, which is fixedly connected to the bottom, to move up and down synchronously. The height of the base 8 corresponding to each of the four support legs 2 can be adjusted to adapt to uneven ground. Next, the horizontal position of the drilling machine 11 is adjusted by pushing the crossbeam 3, causing it to slide along the top of the bracket 1. The crossbeam 3 drives the support plate 4 on the side wall to move synchronously. The support plate 4 drives the connecting plate 9, which is slidably connected to the outer wall, to move. The connecting plate 9 drives the mounting plate 10 on the side wall to move. The mounting plate 10 then adjusts the drilling machine 11, which is fixed to the outer wall, to the desired horizontal position. When the drilling and tapping machine 11 needs to be disassembled for maintenance at the target processing location, during disassembly, pressing the pressing cap 18 causes the sliding column 13 to slide on the fixed plate 19 inside the hollow column 12. The sliding column 13 drives the trapezoidal column 14 at one end to move synchronously, so that the trapezoidal column 14 no longer squeezes the retaining ball 15 inside the hollow column 12. The retaining ball 15 disengages from the connecting plate 9, and the mounting plate 10 and the drilling and tapping machine 11 can be removed. During installation, the spring 16 pushes the sliding plate 17 to slide on the inner wall of the hollow column 12. The sliding plate 17 drives the sliding column 13 to move, and the sliding column 13 drives the trapezoidal column 14 to reset. The trapezoidal column 14 squeezes the retaining ball 15 and locks it into the connecting plate 9, thereby fixing the mounting plate 10 and the connecting plate 9 and completing the installation of the drilling and tapping machine 11.

Claims

1. A driveless, large-span gantry drilling and tapping machine frame, comprising a support frame (1), characterized in that: The bracket (1) is slidably connected to a crossbeam (3) at the top, and a support plate (4) is provided on the side wall of the crossbeam (3). The bracket (1) is fixedly connected to a plurality of support legs (2) at the bottom. Each support leg (2) is threadedly connected to a threaded column (5) inside. The bottom of the threaded column (5) is fixedly connected to a base (8). An adjustment component is provided on the outer wall of the support leg (2). The adjustment assembly includes a rotating sleeve (6) and a resistance bar (7). The rotating sleeve (6) is rotatably connected to the outer wall of the support leg (2). The inner wall of the rotating sleeve (6) is threadedly connected to the outer wall of the threaded column (5). The inner wall of the resistance bar (7) is fixedly connected to the outer wall of the rotating sleeve (6). A connecting plate (9) is slidably connected to the outer wall of the support plate (4). An installation plate (10) is provided on the side wall of the connecting plate (9). A drilling machine (11) is fixedly connected to the outer wall of the installation plate (10). A connecting assembly is provided inside the installation plate (10).

2. The driveless large-span gantry drilling and tapping machine frame according to claim 1, characterized in that: The connecting assembly includes a hollow column (12), the outer wall of which is fixedly connected to the inner wall of the mounting plate (10), and one end of which is slidably connected to the inside of the connecting plate (9).

3. The driveless large-span gantry drilling and tapping machine frame according to claim 2, characterized in that: The hollow column (12) has a sliding ball (15) inside, which engages with the connecting plate (9).

4. The driveless large-span gantry drilling and tapping machine frame according to claim 3, characterized in that: The hollow column (12) is fixedly connected to a fixed disk (19), and the fixed disk (19) is slidably connected to a sliding column (13).

5. The driveless large-span gantry drilling and tapping machine frame according to claim 4, characterized in that: One end of the sliding column (13) is fixedly connected to a trapezoidal column (14), and the other end of the sliding column (13) is fixedly connected to a pressing cap (18). The outer wall of the trapezoidal column (14) is in contact with the outer wall of the ball (15).

6. The driveless large-span gantry drilling and tapping machine frame according to claim 5, characterized in that: A sliding disk (17) is fixedly connected to the outer wall of the sliding column (13), and the sliding disk (17) is slidably connected to the inner wall of the hollow column (12).

7. The driveless large-span gantry drilling and tapping machine frame according to claim 6, characterized in that: A spring (16) is fitted on the outer wall of the sliding column (13). One end of the spring (16) is fixedly connected to the side wall of the fixed disk (19), and the other end of the spring (16) is fixedly connected to the side wall of the sliding disk (17).

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