A three-channel gantry frame structure drilling and tapping machine

Abstract

This utility model discloses a three-channel gantry frame structure drilling and tapping machine, including a frame; the gantry frame has a first stepped surface and a second stepped surface; a Y-axis moving mechanism; three Y-axis moving mechanisms are arranged side by side on the machine tool body; a Z-axis moving mechanism; a milling head; and an X-axis moving mechanism, which includes sliding components respectively disposed on the first stepped surface and the second stepped surface, and three driving components respectively driving the left-side mechanism, the middle mechanism, and the right-side mechanism; the left-side mechanism, the middle mechanism, and the right-side mechanism are simultaneously disposed on two of the sliding components for lateral movement. This utility model provides a three-channel gantry frame structure drilling and tapping machine. This design significantly increases the bending section modulus of the slide in the X direction, effectively resisting the overturning moment generated by the cutting force, thereby suppressing vibration and deformation during processing, and ensuring accuracy and stability during multi-channel synchronous high-speed processing.

Description

Technical Field

[0001] This application relates to the field of drilling and tapping machine technology, and in particular to a three-channel gantry frame structure drilling and tapping machine. Background Technology

[0002] Existing multi-channel gantry drilling and tapping machines typically have their X-axis movement mechanism mounted on a single, continuous horizontal guide rail surface of the gantry frame. When multiple machining heads (e.g., three) have their slides mounted side-by-side on the same guide rail height, significant drawbacks arise: First, the load of all slides is concentrated at the same height of the crossbeam, causing the crossbeam to bear a huge torsional moment, affecting the overall structural rigidity and stability. Second, when multiple slides move on a single plane, the span of their supporting base (slide) is limited, easily forming a cantilever structure. During high-speed, heavy-cut machining, the front end of the slide is prone to vibration and sagging, affecting machining accuracy. Utility Model Content

[0003] To solve the above problems, this technical solution provides a three-channel gantry frame structure drilling and tapping machine.

[0004] To achieve the above objectives, the technical solution is as follows:

[0005] A three-channel gantry frame structure drilling and tapping machine, including

[0006] The frame includes a machine tool body and a gantry mounted on the machine tool body; the gantry is provided with a first stepped surface and a second stepped surface;

[0007] The Y-axis moving mechanism includes a worktable and a power assembly for driving the worktable to move longitudinally; three Y-axis moving mechanisms are arranged side by side on the machine tool body.

[0008] The Z-axis moving mechanism includes a left-side mechanism, a middle mechanism, and a right-side mechanism, each corresponding to one of the three Y-axis moving mechanisms.

[0009] A milling head is respectively mounted on the left side mechanism, the middle mechanism, and the right side mechanism and moves vertically with them;

[0010] The X-axis moving mechanism includes sliding components respectively disposed on the first stepped surface and the second stepped surface, and three driving components respectively driving the left-side mechanism, the middle mechanism and the right-side mechanism; the left-side mechanism, the middle mechanism and the right-side mechanism are simultaneously disposed on two of the sliding components for lateral movement.

[0011] As described above, in a three-channel gantry frame structure drilling machine, the first stepped surface is lower than the second stepped surface, and the first stepped surface is further forward than the second stepped surface. The sliding assembly includes two slide rails respectively disposed on the first stepped surface and the second stepped surface, sliders respectively disposed on the two slide rails, and slide blocks disposed on the two sliders. The left-side mechanism, the middle mechanism, and the right-side mechanism are respectively disposed on the three slide blocks.

[0012] As described above, a three-channel gantry frame structure drilling and tapping machine has an embedding groove for the slide rail to be embedded in, a fastening groove located on one side of the embedding groove and communicating with it, and a side pressure block installed on the fastening groove. When the slide rail is installed in the embedding groove by fasteners, one side of it protrudes into the fastening groove so that it is squeezed by the side pressure block when the side pressure block is connected to the fastening groove.

[0013] As described above, in a three-channel gantry frame structure drilling and tapping machine, the fastening groove is provided with a first inclined surface that gradually approaches the embedding groove in the depth direction, and the side pressure block is provided with a second inclined surface that cooperates with the first inclined surface.

[0014] As described above, a three-channel gantry frame structure drilling machine has a vertical surface between the first stepped surface and the second stepped surface, and three drive components are disposed on the vertical surface, with the output ends of the three drive components respectively connected to the three slides.

[0015] As described above, in a three-channel gantry frame structure drilling and tapping machine, the three slides are arranged in an inverted triangular shape.

[0016] As described above, in a three-channel gantry frame structure drilling machine, a connecting inclined surface is provided between the vertical surface and the first stepped surface.

[0017] As described above, in a three-channel gantry frame structure drilling machine, the slide is stepped, including a first step surface above the first stepped surface and a second step surface above the second stepped surface, and the slider is disposed on the first step surface and the second step surface.

[0018] As described above, a three-channel gantry frame structure drilling and tapping machine has a support on the slide and a tool magazine located on the support for changing tools with the milling head.

[0019] As described above, a three-channel gantry frame structure drilling and tapping machine includes a support frame comprising a main frame disposed on both sides of the slide block, and a left side frame, a middle frame, or a right side frame disposed between the two main frames. The left side frame allows the tool magazine to face the left side of the machine frame, the middle frame allows the tool magazine to face the front of the machine frame, and the right side frame allows the tool magazine to face the right side of the machine frame.

[0020] The beneficial effects of this application are:

[0021] This invention provides a three-channel gantry frame structure drilling and tapping machine. Two sliding components at different heights form a large-span support base, jointly bearing the weight of the slide block, Z-axis moving mechanism, milling head, and machining forces. This design significantly increases the bending section modulus of the slide block in the X direction, effectively resisting the overturning moment generated by cutting forces, thereby suppressing vibration and deformation during machining and ensuring accuracy and stability during multi-channel synchronous high-speed machining. The load is no longer concentrated at a single height of the crossbeam, but is distributed to the gantry frame through two stepped surfaces at different heights, reducing the torsional moment borne by the crossbeam, avoiding stress concentration, and improving the static and dynamic stiffness and long-term reliability of the gantry frame itself. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below.

[0023] Figure 1 This is a schematic diagram of the structure of this application;

[0024] Figure 2 This is the right view of this application;

[0025] Figure 3 for Figure 1 Enlarged view of point A. Detailed Implementation

[0026] To make the technical problems solved, technical solutions, and beneficial effects of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0027] A three-channel gantry frame structure drilling and tapping machine, including

[0028] The frame includes a machine tool body 1 and a gantry frame 2 mounted on the machine tool body 1; the gantry frame 2 is provided with a first stepped surface 21 and a second stepped surface 22.

[0029] The Y-axis moving mechanism 3 includes a worktable 31 and a power assembly 32 for driving the worktable 31 to move longitudinally; three Y-axis moving mechanisms 3 are arranged side by side on the machine tool body 1.

[0030] Z-axis moving mechanism 4 includes a left-side mechanism 41, a middle mechanism 42, and a right-side mechanism 43, which correspond one-to-one with the three Y-axis moving mechanisms 3, respectively.

[0031] Milling head 5 is respectively mounted on the left side mechanism 41, the middle mechanism 42, and the right side mechanism 43 and moves vertically with them;

[0032] The X-axis moving mechanism 6 includes sliding components 61 respectively disposed on the first stepped surface 21 and the second stepped surface 22, and three driving components 62 respectively driving the left mechanism 41, the middle mechanism 42 and the right mechanism 43; the left mechanism 41, the middle mechanism 42 and the right mechanism 43 are simultaneously disposed on two of the sliding components 61 for lateral movement.

[0033] This invention provides a three-channel gantry frame structure drilling and tapping machine. Two sliding components at different heights form a large-span support base, jointly bearing the weight of the slide block, Z-axis moving mechanism, milling head, and machining forces. This design significantly increases the bending section modulus of the slide block in the X direction, effectively resisting the overturning moment generated by cutting forces, thereby suppressing vibration and deformation during machining and ensuring accuracy and stability during multi-channel synchronous high-speed machining. The load is no longer concentrated at a single height of the crossbeam, but is distributed to the gantry frame through two stepped surfaces at different heights, reducing the torsional moment borne by the crossbeam, avoiding stress concentration, and improving the static and dynamic stiffness and long-term reliability of the gantry frame itself.

[0034] Furthermore, as a preferred embodiment of this solution and not a limitation, the first stepped surface 21 is lower than the second stepped surface 22, and the first stepped surface 21 is positioned forward of the second stepped surface 22. The sliding assembly 61 includes two slide rails 611 respectively disposed on the first stepped surface 21 and the second stepped surface 22, sliders 612 respectively disposed on the two slide rails 611, and slide blocks 613 simultaneously disposed on the two sliders 612. The left-side mechanism 41, the middle mechanism 42, and the right-side mechanism 43 are respectively disposed on the three slide blocks 613. By setting the first stepped surface to be lower than and forward of the second stepped surface, and specifying the sliding assembly as slide rails, sliders, and jointly supported slide blocks disposed on the two stepped surfaces, this structure forms a height difference layout in space. This layout provides the slide block with support in both front-back and vertical dimensions, forming a stable triangular force-bearing area, further optimizing the load distribution, enhancing the slide block's anti-overturning ability when subjected to vertical cutting forces, and ensuring the smoothness and accuracy of the slide block's movement.

[0035] Furthermore, as a preferred embodiment of this solution, and not a limitation thereof, the gantry frame 2 is provided with an embedding groove 23 for the slide rail 611 to be embedded in, a fastening groove 24 located on one side of the embedding groove 23 and communicating with it, and a side pressure block 25 installed on the fastening groove 24. When the slide rail 611 is installed in the embedding groove 23 by fasteners, one side of it protrudes into the fastening groove 24 so that it is squeezed by the side pressure block 25 when it is connected to the fastening groove 24. By setting the cooperating structure of the embedding groove, the fastening groove, and the side pressure block, this solution provides a high-precision slide rail installation and lateral locking method. During installation, one side of the slide rail protrudes into the fastening groove, and by tightening the side pressure block, a continuous and uniform lateral pressure force is applied to the side of the slide rail, thereby eliminating the installation gap between the slide rail and the embedding groove, and effectively resisting the lateral force generated when the slide block moves, preventing the slide rail from loosening, and ensuring the installation accuracy, rigidity, and long-term operational reliability of the guide rail pair.

[0036] Furthermore, as a preferred embodiment of this solution and not a limitation, the fastening groove 24 is provided with a first inclined surface 241 that gradually approaches the embedding groove 23 in its depth direction, and the side pressure block 25 is provided with a second inclined surface 251 that cooperates with the first inclined surface 241. By designing the inner side of the fastening groove as the first inclined surface and cooperating with the second inclined surface on the side pressure block, the side pressure block can convert the vertical component of the force into a horizontal component when subjected to the vertical tension of the bolt, thereby squeezing and locking the slide rail more efficiently and accurately. This inclined surface clamping mechanism provides a larger preload, a more reliable locking effect, and allows for precise fine-tuning of the lateral preload of the slide rail, further ensuring the installation accuracy and stability of the guide rail.

[0037] Furthermore, as a preferred embodiment of this solution and not a limitation, a vertical surface 26 is provided between the first stepped surface 21 and the second stepped surface 22. Three drive components 62 are disposed on the vertical surface 26, and the output ends of the three drive components 62 are respectively connected to the three slide blocks 613. By setting three drive components on the vertical surface between the first and second stepped surfaces, and directly driving the three slide blocks respectively, this layout fully utilizes the high-rigidity area in the middle of the gantry frame to install the drive elements. This not only saves lateral space, making the structure more compact, but also avoids the potential asynchronous problems that may occur when the drive source is placed at both ends, ensuring the independence and accuracy of each slide block drive, while minimizing the transmission path of the driving force, thus improving transmission rigidity and response speed.

[0038] Furthermore, as a preferred embodiment of this solution and not a limitation, the three slides 613 are arranged in an inverted triangular pattern. By arranging the three slides in an inverted triangular pattern, this layout achieves symmetry and balance of loads in the mechanical structure. This distribution brings the center of gravity of the entire X-axis moving mechanism closer to the central support area of ​​the gantry, reducing the additional bending moment caused by the shift in the center of gravity, thereby reducing the deformation of the gantry, improving the dynamic stability of the moving parts, and facilitating consistent dynamic performance and machining accuracy for the three machining heads.

[0039] Furthermore, as a preferred embodiment of this solution and not a limitation, a connecting ramp 27 is provided between the vertical surface 26 and the first stepped surface 21. By providing a connecting ramp between the first stepped surface and the vertical surface, this design avoids sharp right-angle connections and achieves a smooth stress transition. This significantly reduces stress concentration, enhances the structural strength and fatigue resistance of this critical connection, and improves the service life and reliability of the gantry crane under long-term alternating loads.

[0040] Furthermore, as a preferred embodiment of this solution and not a limitation, the slide 613 is stepped, including a first step surface 614 corresponding to the top of the first stepped surface 21 and a second step surface 615 corresponding to the top of the second stepped surface 22. The slider 612 is disposed on the first step surface 614 and the second step surface 615. By designing the slide itself as a stepped structure including the first and second step surfaces, its lower surface forms a conformal fit with the two stepped surfaces of the gantry. This design allows the slide to cover and connect two sliders of different heights with the maximum contact area, tightly integrating the two independent sliders into a unified rigid motion unit, greatly improving the overall rigidity and load-bearing capacity of the slide.

[0041] Furthermore, as a preferred embodiment of this solution and not a limitation, the slide 613 is provided with a bracket 7 and a tool magazine 8 disposed on the bracket 7 for tool changing with the milling head 5. By integrating the bracket and tool magazine on each slide, the tool magazine moves synchronously with the milling head along the X-axis. This constitutes a distributed follow-up tool magazine layout, enabling each machining head to obtain tools nearby and quickly, greatly shortening the tool changing path and time, and is particularly suitable for machining scenarios requiring frequent tool changes in three channels, significantly improving the overall production efficiency of the equipment.

[0042] Furthermore, as a preferred embodiment of this solution and not a limitation, the bracket 7 includes a main frame 71 disposed on both sides of the slide 613, and a left frame 72, a middle frame 73, or a right frame 74 disposed between the two main frames 71. The left frame 72 allows the tool magazine 8 to face the left side of the machine frame, the middle frame 73 allows the tool magazine 8 to face the front of the machine frame, and the right frame 74 allows the tool magazine 8 to face the right side of the machine frame. By adopting a bracket composed of main frames and left, middle, or right frames with variable orientations, the tool magazine installation direction is configurable. Users can flexibly choose the orientation of the tool magazine to the left, front, or right according to the specific layout of the machine tool on site and their operating habits, greatly improving the adaptability and flexibility of the equipment layout and optimizing the tool changing and human-machine interaction experience for operators.

[0043] The above description is only a preferred embodiment of this application and is not intended to limit the scope of implementation of this application. Any other embodiments whose principles and basic structures are the same as or similar to those of this application are within the protection scope of this application.

Claims

1. A three-channel gantry frame structure drilling and tapping machine, characterized in that: include The frame includes a machine tool body (1) and a gantry (2) mounted on the machine tool body (1); the gantry (2) is provided with a first stepped surface (21) and a second stepped surface (22); The Y-axis moving mechanism (3) includes a worktable (31) and a power assembly (32) for driving the worktable (31) to move longitudinally; the three Y-axis moving mechanisms (3) are arranged side by side on the machine tool body (1); Z-axis moving mechanism (4), which includes a left-side mechanism (41), a middle mechanism (42), and a right-side mechanism (43) that correspond one-to-one with the three Y-axis moving mechanisms (3); Milling head (5) is respectively mounted on the left side mechanism (41), the middle mechanism (42), and the right side mechanism (43) and moves vertically with them; The X-axis moving mechanism (6) includes sliding components (61) respectively disposed on the first stepped surface (21) and the second stepped surface (22), and three driving components (62) respectively driving the left-side mechanism (41), the middle mechanism (42) and the right-side mechanism (43); the left-side mechanism (41), the middle mechanism (42) and the right-side mechanism (43) are simultaneously disposed on two of the sliding components (61) for lateral movement.

2. The three-channel gantry frame structure drilling and tapping machine according to claim 1, characterized in that: The first stepped surface (21) is lower than the second stepped surface (22), and the first stepped surface (21) is forward of the second stepped surface (22). The sliding assembly (61) includes two slide rails (611) respectively disposed on the first stepped surface (21) and the second stepped surface (22), sliders (612) respectively disposed on the two slide rails (611), and slide blocks (613) disposed on the two sliders (612). The left side mechanism (41), the middle mechanism (42), and the right side mechanism (43) are respectively disposed on the three slide blocks (613).

3. A three-channel gantry frame structure drilling and tapping machine according to claim 2, characterized in that: The gantry frame (2) is provided with an embedding groove (23) for the slide rail (611) to be embedded, a fastening groove (24) provided on one side of the embedding groove (23) and communicating with it, and a side pressure block (25) installed on the fastening groove (24). When the slide rail (611) is installed in the embedding groove (23) by fasteners, one side of it protrudes into the fastening groove (24) so ​​that it is squeezed by the side pressure block (25) when the side pressure block (25) is connected to the fastening groove (24).

4. A three-channel gantry frame structure drilling and tapping machine according to claim 3, characterized in that: The fastening groove (24) is provided with a first inclined surface (241) that gradually approaches the embedding groove (23) in the depth direction, and the side pressure block (25) is provided with a second inclined surface (251) that cooperates with the first inclined surface (241).

5. A three-channel gantry frame structure drilling and tapping machine according to claim 4, characterized in that: A vertical surface (26) is provided between the first stepped surface (21) and the second stepped surface (22), and three driving components (62) are provided on the vertical surface (26), and the output ends of the three driving components (62) are respectively connected to the three slides (613).

6. A three-channel gantry frame structure drilling and tapping machine according to claim 2, characterized in that: The three slides (613) are arranged in an inverted triangular shape.

7. A three-channel gantry frame structure drilling and tapping machine according to claim 5, characterized in that: A connecting ramp (27) is provided between the vertical surface (26) and the first stepped surface (21).

8. A three-channel gantry frame structure drilling and tapping machine according to claim 2, characterized in that: The slide (613) is stepped, including a first step surface (614) above the first step surface (21) and a second step surface (615) above the second step surface (22). The slider (612) is disposed on the first step surface (614) and the second step surface (615).

9. A three-channel gantry frame structure drilling and tapping machine according to claim 2, characterized in that: The slide (613) is provided with a bracket (7) and a tool magazine (8) provided on the bracket (7) for changing tools with the milling head (5).

10. A three-channel gantry frame structure drilling and tapping machine according to claim 9, characterized in that: The bracket (7) includes a main frame (71) disposed on both sides of the slide (613), and a left frame (72), a middle frame (73), or a right frame (74) disposed between the two main frames (71). The left frame (72) allows the tool magazine (8) to face the left side of the frame, the middle frame (73) allows the tool magazine (8) to face the front of the frame, and the right frame (74) allows the tool magazine (8) to face the right side of the frame.

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