Heavy machine tool gantry boring and milling combined device and method

Abstract

This application relates to the field of CNC machine tool technology and discloses a heavy-duty machine tool gantry boring and milling composite device and method. The heavy-duty machine tool gantry boring and milling composite device includes a base, a drive assembly, a gantry frame, a guide rail, an electric slide, two connecting seats, two sets of adjustment assemblies, a boring spindle box, and a milling spindle box. A support platform is fixedly installed on the top of the base. The drive assembly is located on the top of the base. The gantry frame is mounted on the drive assembly, which drives the gantry frame to move linearly along the length of the base. The guide rail is fixedly installed on the top of the gantry frame. The electric slide is slidably mounted on the guide rail. The two connecting seats are respectively fixedly installed on the front and rear sides of the electric slide. This application has the following advantages and effects: it can realize the composite functions of vertical boring, side boring, vertical milling, and side milling, meet the needs of multi-face, multi-angle, and multi-position boring and milling composite machining of workpieces, and significantly improve the machining accuracy and efficiency of workpieces.

Description

Technical Field

[0001] This application relates to the field of CNC machine tool technology, and in particular to a heavy-duty machine tool gantry boring and milling composite device and method. Background Technology

[0002] Heavy machinery and equipment, large box-shaped and irregularly shaped workpieces are core components in the fields of mining, wind power, shipbuilding and heavy equipment manufacturing. These workpieces are generally large in size and complex in structure, requiring heavy-duty gantry milling machines to bore and mill different faces and tilt angles of the workpieces.

[0003] In existing heavy-duty gantry milling machines, boring and milling operations are mostly performed by separate boring and milling machines in stages. This requires multiple clamping, transfer, and repositioning of the workpiece, significantly reducing production efficiency. Furthermore, each clamping and positioning operation is prone to deviations in the positioning datum, directly affecting the workpiece's dimensional accuracy and geometric tolerances, making it difficult to meet high-precision machining requirements. Simultaneously, most heavy-duty gantry milling machines can only perform vertical machining, with limited tool angle adjustment range, making it impossible to directly perform boring and milling on the workpiece's lateral or inclined surfaces. For workpieces with multi-angle, irregularly shaped machining surfaces, angle adjustment can only be achieved by flipping the workpiece using tooling pads, a cumbersome and inefficient process. Therefore, we propose a heavy-duty gantry boring and milling composite device and method to solve the above problems. Summary of the Invention

[0004] The purpose of this application is to provide a heavy-duty machine tool gantry boring and milling composite device and method, which has the composite functions of vertical boring, side boring, vertical milling and side milling, to meet the needs of multi-face, multi-angle and multi-position boring and milling composite machining of workpieces, and to greatly improve the machining accuracy and machining efficiency of workpieces.

[0005] The above-mentioned technical objective of this application is achieved through the following technical solution: a heavy-duty machine tool gantry boring and milling composite device, comprising a base, a drive assembly, a gantry frame, a guide rail, an electric slide, two connecting seats, two sets of adjustment assemblies, a boring spindle box, and a milling spindle box; a support platform is fixedly installed on the top of the base; the drive assembly is disposed on the top of the base; the gantry frame is disposed on the drive assembly, and the drive assembly is used to drive the gantry frame to move linearly along the length direction of the base, and rollers are rotatably installed on both sides of the bottom of the gantry frame; the guide rail is fixedly installed on the top of the gantry frame; the electric slide is slidably installed on the guide rail; the two connecting seats are respectively fixedly installed on the front and rear sides of the electric slide; the two sets of adjustment assemblies are respectively disposed on the corresponding connecting seats; the boring spindle box is disposed on one of the adjustment assemblies, and a boring cutter head is fixedly connected to the output shaft end of the boring spindle box; the milling spindle box is disposed on the other adjustment assembly, and a milling cutter head is fixedly connected to the output shaft end of the milling spindle box.

[0006] Optionally, the drive assembly includes two beam seats, a movable seat, a guide seat, a threaded rod, and a motor. Both beam seats are fixedly mounted on the top of the base, with the support platform located between the two beam seats. Rectangular slots are provided on the opposite sides of each beam seat. The movable seat is slidably mounted in the left rectangular slot, with its left side fixedly connected to the left inner wall of the gantry. The guide seat is slidably mounted in the right rectangular slot, with its right side fixedly connected to the right inner wall of the gantry. The threaded rod is rotatably mounted in the left rectangular slot, with the movable seat threaded onto the threaded rod. The motor is fixedly mounted at the front end of the left beam seat, with its output shaft fixedly connected to the front end of the threaded rod.

[0007] Optionally, a guide rod is fixedly installed in the rectangular groove on the left side, and a guide seat is slidably sleeved on the guide rod.

[0008] Optionally, both sets of adjustment components include a hydraulic cylinder, an adjustment box, a rotating shaft, a main gear, a rotating shaft, a secondary gear, and a motor. The hydraulic cylinder is fixedly mounted on the connecting seat. The adjustment box is fixedly mounted on the telescopic end of the hydraulic cylinder, and one side of the adjustment box is open. The rotating shaft is rotatably mounted inside the adjustment box. The main gear is fixedly sleeved on the rotating shaft. The rotating shaft is rotatably mounted inside the adjustment box and located below the rotating shaft. One end of the rotating shaft extends outside the adjustment box. The boring spindle box and the milling spindle box are respectively fixedly mounted on the corresponding ends of the rotating shaft two located outside the adjustment box. The secondary gear is fixedly sleeved on the rotating shaft two and meshes with the main gear. The motor is fixedly mounted on the outer wall of one side of the adjustment box, and the output shaft end of the motor is fixedly connected to one end of the rotating shaft.

[0009] Optionally, a displacement sensor is fixedly installed on one outer wall of the regulating box.

[0010] Optionally, an angle sensor is fixedly installed on the second rotating shaft, and the angle sensor is located outside the adjustment box.

[0011] Optionally, a cover is fixed to the outer wall of the regulating box on one side of the opening by screws.

[0012] Optionally, multiple pads arranged at equal intervals are fixedly installed on the top of both beam seats, and hydraulic cylinders are fixedly installed on the top of each pad. Pressure sensors are fixedly installed on the telescopic ends of each hydraulic cylinder, and clamps are fixedly installed on one side of each pressure sensor.

[0013] Optionally, the bottom of the clamping plate is higher than the top of the support platform.

[0014] A method of using the above-mentioned heavy-duty machine tool gantry boring and milling composite device includes the following operating steps:

[0015] S1: Workpiece clamping and fixing operation: Place the workpiece to be processed on the support platform of the base, select the corresponding position of the hydraulic cylinder two according to the shape of the workpiece, extend and run the hydraulic cylinder two push the corresponding clamping plate to move closer to the workpiece and clamp it. At the same time, the pressure sensor monitors the clamping pressure in real time. After the pressure reaches the set threshold, the hydraulic cylinder two is shut off to complete the workpiece positioning and locking.

[0016] S2: Install the required boring bar on the boring head and the required milling cutter on the milling head. Adjust the positions of the boring bar and the milling cutter as follows:

[0017] A. Longitudinal adjustment: When the motor is started, the threaded rod is driven to rotate, causing the moving seat to slide in the rectangular slot on the left. The moving seat drives the gantry to move synchronously, and the gantry drives the guide seat to slide in the rectangular slot on the right along the length of the guide rod, thus realizing the adjustment of the front and rear positions of the boring and milling cutters.

[0018] B. Lateral Position Adjustment: Control the electric slide to slide along the guide rail at the top of the gantry, driving the two sets of adjustment components, boring spindle box, boring cutter head, milling spindle box, and milling cutter head to move laterally left and right, thereby realizing the adjustment of the left and right positions of the boring cutter and milling cutter;

[0019] C. Height Adjustment: Two hydraulic cylinders are controlled to extend or retract, driving the corresponding adjustment box to rise or fall. At the same time, the displacement sensor collects the lifting data in real time, thus realizing precise adjustment of the height position of the boring bar and the milling cutter.

[0020] D. Orientation Adjustment: Two motors are controlled to operate separately, driving the corresponding shaft one and main gear to rotate. The meshing transmission between the main gear and the auxiliary gear drives the shaft two to rotate. At the same time, the angle sensor detects the rotation angle of the shaft two in real time, thus realizing the precise adjustment of the orientation position of the boring bar and the milling cutter.

[0021] S3: Perform boring and milling operations as follows:

[0022] A. By starting the milling spindle box to drive the milling cutter head and the milling cutter to rotate, and by adjusting the front-to-back position, left-to-right position, height position and orientation position of the milling cutter, vertical, lateral, multi-face and multi-directional milling of the workpiece can be realized;

[0023] B. By starting the boring spindle box to drive the boring head and boring tool to rotate, and by adjusting the front-to-back position, left-to-right position, height position and orientation position of the boring tool, vertical, lateral, multi-face and multi-directional boring of the workpiece can be realized.

[0024] S4: After all the workpieces have been processed, control each hydraulic cylinder to retract and reset, so that the clamping plate returns to its original position and cancels the clamping of the workpiece, and the processed workpiece can be removed from the support table.

[0025] This application includes at least one of the following beneficial technical effects:

[0026] This application designs two sets of adjustment components, which can adjust the height and orientation of the boring or milling cutter head respectively. With the help of the electric slide, the boring and milling cutter heads move linearly along the width of the base, and with the help of the gantry, the boring and milling cutter heads move linearly along the length of the base. This enables the composite functions of vertical boring, side boring, vertical milling, and side milling, meeting the needs of multi-face, multi-angle, and multi-position boring and milling composite machining of workpieces. It allows the workpiece to complete multi-face, multi-hole, and multi-process composite machining in a single clamping, greatly improving the machining accuracy and efficiency of the workpiece, and adapting to the multi-angle and multi-position composite machining needs of large and irregular workpieces.

[0027] This application designs a drive assembly that can drive the gantry to move linearly along the length of the base, thereby causing the boring cutter head and the milling cutter head to move linearly along the length of the base. By using an electric slide to slide linearly along the guide rail, the boring cutter head and the milling cutter head can be moved linearly along the width of the base.

[0028] This application utilizes multiple hydraulic cylinders to drive the corresponding pressure sensors and clamping plates to move. With the coordinated action of multiple clamping plates, the workpiece can be clamped and fixed on the support platform to prevent workpiece displacement. At the same time, it can ensure that a suitable clamping force is applied to the workpiece, avoiding excessive clamping force that could damage the workpiece, and also avoiding insufficient clamping force that would result in an unreliable clamping of the workpiece. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0030] Figure 1 This is a top-view three-dimensional structural diagram of this embodiment.

[0031] Figure 2 This is a front-view stereoscopic structural diagram of this embodiment.

[0032] Figure 3 This is a partial three-dimensional structural schematic diagram of this embodiment.

[0033] Figure 4 This is a three-dimensional structural diagram of the driving component.

[0034] Figure 5 yes Figure 4 A frontal sectional view of the three-dimensional structure.

[0035] Figure 6 This is a schematic diagram of the three-dimensional structure of the adjustment component.

[0036] Figure 7 yes Figure 6 A three-dimensional structural diagram of the box with the lid removed.

[0037] In the diagram: 1. Base; 2. Support platform; 3. Drive assembly; 31. Beam seat; 32. Moving seat; 33. Guide seat; 34. Threaded rod; 35. Motor 1; 36. Guide rod; 4. Gantry frame; 5. Guide rail; 6. Electric slide; 7. Connecting seat; 8. Adjustment assembly; 81. Hydraulic cylinder 1; 82. Adjustment box; 83. Rotating shaft 1; 84. Main gear; 85. Rotating shaft 2; 86. Secondary gear; 87. Motor 2; 88. Displacement sensor; 89. Angle sensor; 810. Box cover; 9. Boring spindle box; 10. Boring cutter head; 11. Milling spindle box; 12. Milling cutter head; 13. Pad; 14. Hydraulic cylinder 2; 15. Pressure sensor; 16. Clamping plate; 17. Roller. Detailed Implementation

[0038] The technical solution of this application will be clearly and completely described below with reference to specific embodiments. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0039] See Figures 1-7This application provides a heavy-duty machine tool gantry boring and milling composite device, including a base 1, a drive assembly 3, a gantry frame 4, a guide rail 5, an electric slide 6, two connecting seats 7, two sets of adjustment assemblies 8, a boring spindle box 9, and a milling spindle box 11. A support platform 2 is fixedly installed on the top of the base 1; the drive assembly 3 is located on the top of the base 1; the gantry frame 4 is mounted on the drive assembly 3, which drives the gantry frame 4 to move linearly along the length of the base 1; rollers 17 are rotatably installed on both sides of the bottom of the gantry frame 4, which improves the stability of the gantry frame 4 during movement; the guide rail 5 is fixedly installed on the top of the gantry frame 4; the electric slide 6 is slidably installed on the guide rail 5; the two connecting seats 7 are respectively fixedly installed on the front and rear sides of the electric slide 6; and two sets of adjustment assemblies 8 are provided. The section components 8 are respectively set on the corresponding connecting seats 7; the boring spindle box 9 is set on one of the adjusting components 8, and the output shaft end of the boring spindle box 9 is fixedly connected to the boring cutter head 10; the milling spindle box 11 is set on another adjusting component 8, and the output shaft end of the milling spindle box 11 is fixedly connected to the milling cutter head 12. By utilizing the sliding connection of the electric slide 6 on the guide rail 5, the boring cutter head 10 and the milling cutter head 12 can be driven to move linearly along the width direction of the base 1. The boring cutter head 10 is used to clamp the boring tool. The output shaft of the boring spindle box 9 drives the boring cutter head 10 and the boring tool to rotate, so as to perform boring machining on the workpiece. The milling cutter head 12 is used to clamp the milling cutter. The output shaft of the milling spindle box 11 drives the milling cutter head 12 and the milling cutter to rotate, so as to perform milling machining on the workpiece.

[0040] In this embodiment, the drive assembly 3 includes two beam seats 31, a movable seat 32, a guide seat 33, a threaded rod 34, and a motor 35. Both beam seats 31 are fixedly installed on the top of the base 1, and the support platform 2 is located between the two beam seats 31. Rectangular slots are provided on the sides of the two beam seats 31 that are far apart from each other. The movable seat 32 is slidably installed in the rectangular slot on the left side, and the left side of the movable seat 32 is fixedly connected to the inner left wall of the gantry 4. The guide seat 33 is slidably installed in the rectangular slot on the right side, and the right side of the guide seat 33 is fixedly connected to the inner right wall of the gantry 4. The wall is fixedly connected; the threaded rod 34 is rotatably installed in the rectangular groove on the left side, and the movable seat 32 is threadedly sleeved on the threaded rod 34; the motor 35 is fixedly installed at the front end of the beam seat 31 on the left side, and the output shaft end of the motor 35 is fixedly connected to the front end of the threaded rod 34. The motor 35 is a reversible motor used to drive the threaded rod 34 to rotate, so that the movable seat 32 can slide in the rectangular groove, thereby driving the gantry 4 to move linearly along the length direction of the base 1, so as to adjust the position of the boring spindle box 9 and the milling spindle box 11.

[0041] In this embodiment, a guide rod 36 is fixedly installed in the rectangular groove on the left side, and a guide seat 33 is slidably sleeved on the guide rod 36. The design of the guide rod 36 can improve the stability of the gantry frame 4 when it moves.

[0042] In this embodiment, both sets of adjustment components 8 include a hydraulic cylinder 81, an adjustment box 82, a rotating shaft 83, a main gear 84, a rotating shaft 85, a secondary gear 86, and a motor 87. The hydraulic cylinder 81 is fixedly mounted on the connecting seat 7. The adjustment box 82 is fixedly mounted on the telescopic end of the hydraulic cylinder 81, and one side of the adjustment box 82 is open. The rotating shaft 83 is rotatably mounted inside the adjustment box 82. The main gear 84 is fixedly sleeved on the rotating shaft 83. The rotating shaft 85 is rotatably mounted on the adjustment box 87. 2. The shaft 85 is located below the first shaft 83. One end of the second shaft 85 extends outside the adjusting box 82. The boring spindle box 9 and the milling spindle box 11 are respectively fixedly installed on the corresponding ends of the second shaft 85 outside the adjusting box 82. The auxiliary gear 86 is fixedly sleeved on the second shaft 85 and meshes with the main gear 84. The second motor 87 is fixedly installed on one side of the outer wall of the adjusting box 82. The output shaft end of the second motor 87 is fixedly connected to one end of the first shaft 83. The first hydraulic cylinder 81 is used for... The vertical movement of the drive adjustment box 82 allows for adjustment of the height of the boring cutter head 10 or the milling cutter head 12. The second motor 87 is a reversible motor; it drives the first rotating shaft 83 to rotate. The meshing transmission of the main gear 84 and the secondary gear 86 controls the rotation of the second rotating shaft 85, causing the boring spindle box 9 or the milling spindle box 11 to rotate around the second rotating shaft 85. This facilitates adjustment of the orientation of the boring cutter head 10 or the milling cutter head 12, and further allows for adjustment... The height and orientation of the boring head 10 or milling head 12, in conjunction with the movement of the gantry 4 and the electric slide 6, enable vertical boring, side boring, vertical milling, and side milling functions. This satisfies the needs of multi-face, multi-angle, and multi-position boring and milling composite machining of workpieces, allowing the workpiece to complete multi-face, multi-hole, and multi-process composite machining in a single clamping. It completely eliminates the need for secondary disassembly, relocation, and alignment processes, eliminates accumulated clamping errors, and significantly improves workpiece machining accuracy and efficiency.

[0043] In this embodiment, a displacement sensor 88 is fixedly installed on one outer wall of the adjustment box 82. The displacement sensor 88 is used to detect the lifting height of the adjustment box 82 so as to accurately determine the height position of the boring cutter head 10 or the milling cutter head 12.

[0044] In this embodiment, an angle sensor 89 is fixedly installed on the second rotating shaft 85. The angle sensor 89 is located outside the adjustment box 82. The angle sensor 89 is used to detect the rotation angle of the second rotating shaft 85 so as to accurately determine the orientation of the boring cutter head 10 or the milling cutter head 12.

[0045] In this embodiment, a cover 810 is fixed to the outer wall of the opening side of the regulating box 82 by screws. The cover 810 is used to seal the opening of the regulating box 82. The screw assembly method is used to facilitate the easy disassembly and assembly of the cover 810, thereby facilitating the regular maintenance of the main gear 84 and the auxiliary gear 86.

[0046] In this embodiment, multiple pads 13 arranged at equal intervals are fixedly installed on the top of both beam seats 31. Hydraulic cylinders 14 are fixedly installed on the top of each pad 13. Pressure sensors 15 are fixedly installed on the telescopic ends of each hydraulic cylinder 14. Clamping plates 16 are fixedly installed on one side of each pressure sensor 15. The hydraulic cylinders 14 are used to drive the pressure sensors 15 and clamping plates 16 to move horizontally and linearly. By utilizing the synergistic effect of multiple clamping plates 16, the workpiece can be clamped and fixed on the bearing table 2, preventing workpiece displacement during boring and milling. The pressure sensors 15 are used to detect the clamping force applied to the workpiece by the clamping plates 16, preventing excessive clamping force from damaging the workpiece and insufficient clamping force from causing the workpiece to be unreliable. It should be noted that for different workpieces, it is not necessary to control all hydraulic cylinders 14 to operate. Under the premise of not affecting the smooth progress of boring and milling, hydraulic cylinders 14 at appropriate positions can be selected to drive the clamping plates 16 to move linearly to clamp the workpiece.

[0047] In this embodiment, the bottom of the clamping plate 16 is higher than the top of the support platform 2, which ensures that the clamping plate 16 will not touch the support platform 2 during horizontal linear movement.

[0048] In this embodiment, it should be noted that motor 35, electric slide 6, two hydraulic cylinders 81, two motors 87, two displacement sensors 88, two angle sensors 89, multiple hydraulic cylinders 14, and multiple pressure sensors 15 are all electrically connected to an external controller. The two displacement sensors 88, two angle sensors 89, and multiple pressure sensors 15 are all electrically connected to an external display screen. Their wiring connection methods and control methods are mature technologies in the field, and those skilled in the art can learn them without creative effort. Therefore, they will not be described in detail here.

[0049] With the above structure, the working principle of the heavy-duty machine tool gantry boring and milling composite device provided in this application is as follows:

[0050] Place the workpiece to be processed on the support platform 2. According to the processing requirements, select the appropriate position of the hydraulic cylinder 14 to extend and push the clamping plate 16 to move closer to the workpiece and clamp it. The pressure sensor 15 can collect the clamping pressure applied to the workpiece by the clamping plate 16 in real time. When the clamping pressure reaches the preset value, stop the operation of the hydraulic cylinder 14, thus completing the clamping and fixing of the workpiece.

[0051] Select the desired boring cutter and clamp it in the boring cutter head 10, and select the desired milling cutter and clamp it in the milling cutter head 12. Control the operation of motor 35, whose output shaft drives the threaded rod 34 to rotate, causing the moving seat 32 to move along the length of the rectangular slot. The right guide seat 33 moves synchronously along the length of the guide rod 36, causing the gantry 4, boring spindle box 9, boring cutter head 10, milling spindle box 11, and milling cutter head 12 to move along the length of the base 1, thus achieving longitudinal adjustment of the boring cutter head 10 and the milling cutter head 12. Control the electric slide 6 to slide along the length of the guide rail 5, thereby simultaneously adjusting the left and right lateral positions of the two sets of adjusting components 8, boring cutter head 10, and milling cutter head 12. Control the extension of two hydraulic cylinders 81 respectively. The height of the boring cutter head 10 and the milling cutter head 12 can be adjusted separately. At this time, the displacement sensor 88 can monitor the lifting stroke of the boring cutter head 10 and the milling cutter head 12 in real time and accurately control the machining height of the boring cutter head 10 and the milling cutter head 12. By controlling the operation of the corresponding motor 87, the corresponding rotating shaft 83 and the main gear 84 can be driven to rotate respectively. By utilizing the meshing transmission action of the main gear 84 and the auxiliary gear 86, the rotating shaft 85 can be controlled to run, so that the boring spindle box 9 and the milling spindle box 11 rotate around the corresponding rotating shaft 85. This can adjust the orientation of the boring cutter head 10 and the milling cutter head 12. At this time, the angle sensor 89 can monitor the rotation angle of the rotating shaft 85 in real time and accurately control the machining orientation of the boring cutter head 10 and the milling cutter head 12.

[0052] When milling is required, the gantry 4 is moved, the electric slide 6 is moved, the hydraulic cylinder 81 is extended or retracted, and the motor 87 is operated, so the position, height and orientation of the milling cutter head 12 can be adjusted respectively. The output shaft of the milling spindle box 11 drives the milling cutter head 12 and the milling cutter to rotate, so that vertical milling and side milling of the workpiece can be performed according to the processing requirements, satisfying the milling processing of multiple surfaces, angles and positions of the workpiece;

[0053] When boring is required, the gantry 4 is moved, the electric slide 6 is moved, the hydraulic cylinder 81 is extended or retracted, and the motor 87 is operated, so that the position, height and orientation of the boring head 10 can be adjusted respectively. The output shaft of the boring spindle box 9 is used to drive the boring head 10 and the boring tool to rotate, so that the workpiece can be vertically bored or side boring according to the processing requirements, which can meet the boring processing of multiple surfaces, multiple angles and multiple positions of the workpiece.

[0054] After processing is completed, the workpiece can be released from clamping by controlling the hydraulic cylinder 14 to retract and reset, and then the workpiece can be removed.

[0055] The foregoing has provided a detailed description of a heavy-duty machine tool gantry boring and milling composite device and method. Specific embodiments have been used to illustrate the principles and implementation methods of this application. These embodiments are merely illustrative and are intended to aid in understanding the method and its core concepts. It should be noted that those skilled in the art can make various improvements and modifications to this application without departing from its principles, and these improvements and modifications also fall within the scope of protection of the claims.

Claims

1. A heavy-duty machine tool gantry boring and milling composite device, characterized in that, include: The base (1) has a support platform (2) fixedly installed on its top. A drive assembly (3) is disposed on top of the base (1); A gantry frame (4) is mounted on the drive assembly (3). The drive assembly (3) is used to drive the gantry frame (4) to move linearly along the length direction of the base (1). Rollers (17) are rotatably mounted on both sides of the bottom of the gantry frame (4). The guide rail (5) is fixedly installed on the top of the gantry frame (4); An electric slide block (6) is slidably mounted on the guide rail (5); Two connecting seats (7) are fixedly installed on the front and rear sides of the electric slide (6), respectively; Two sets of adjustment components (8) are respectively set on the corresponding connecting seats (7); A boring spindle box (9) is mounted on one of the adjustment components (8), and a boring tool disc (10) is fixedly connected to the output shaft end of the boring spindle box (9). A milling spindle box (11) is mounted on another adjustment assembly (8), and a milling cutter head (12) is fixedly connected to the output shaft end of the milling spindle box (11).

2. The heavy-duty machine tool gantry boring and milling composite device according to claim 1, characterized in that, The driving component (3) includes: Two beam seats (31) are fixedly installed on the top of the base (1), and the bearing platform (2) is located between the two beam seats (31). Rectangular grooves are provided on the side of the two beam seats (31) that are far apart from each other. The movable seat (32) is slidably installed in the rectangular groove on the left side, and the left side of the movable seat (32) is fixedly connected to the left inner wall of the gantry (4); The guide seat (33) is slidably installed in the rectangular groove on the right side, and the right side of the guide seat (33) is fixedly connected to the inner wall of the right side of the gantry frame (4). The threaded rod (34) is rotatably installed in the rectangular groove on the left side, and the movable seat (32) is threaded onto the threaded rod (34); Motor 1 (35) is fixedly installed at the front end of the beam seat (31) on the left side, and the output shaft end of Motor 1 (35) is fixedly connected to the front end of the threaded rod (34).

3. The heavy-duty machine tool gantry boring and milling composite device according to claim 2, characterized in that, A guide rod (36) is fixedly installed in the rectangular groove on the left side, and the guide seat (33) is slidably sleeved on the guide rod (36).

4. The heavy-duty machine tool gantry boring and milling composite device according to claim 1, characterized in that, Both sets of the adjustment components (8) include: Hydraulic cylinder 1 (81) is fixedly installed on the connecting seat (7); An adjustment box (82) is fixedly installed at the telescopic end of the hydraulic cylinder (81), and one side of the adjustment box (82) is an open structure; Rotary shaft 1 (83) is rotatably installed inside the regulating box (82); The main gear (84) is fixedly sleeved on the first rotating shaft (83); The second rotating shaft (85) is rotatably installed inside the adjustment box (82) and located below the first rotating shaft (83). One end of the second rotating shaft (85) extends outside the adjustment box (82). The boring spindle box (9) and the milling spindle box (11) are respectively fixedly installed at the corresponding ends of the second rotating shaft (85) located outside the adjustment box (82). A secondary gear (86) is fixedly sleeved on the second rotating shaft (85), and the secondary gear (86) meshes with the main gear (84); Motor 2 (87) is fixedly installed on one side of the outer wall of the regulating box (82), and the output shaft end of Motor 2 (87) is fixedly connected to one end of the rotating shaft 1 (83).

5. A heavy-duty machine tool gantry boring and milling composite device according to claim 4, characterized in that, A displacement sensor (88) is fixedly installed on one side of the outer wall of the regulating box (82).

6. The heavy-duty machine tool gantry boring and milling composite device according to claim 4, characterized in that, An angle sensor (89) is fixedly installed on the second rotating shaft (85), and the angle sensor (89) is located outside the adjustment box (82).

7. A heavy-duty machine tool gantry boring and milling composite device according to claim 4, characterized in that, The outer wall of the regulating box (82) on the opening side is fixed with a box cover (810) by screws.

8. A heavy-duty machine tool gantry boring and milling composite device according to claim 2, characterized in that, Multiple pads (13) arranged at equal intervals are fixedly installed on the top of both beam seats (31). Hydraulic cylinders (14) are fixedly installed on the top of the multiple pads (13). Pressure sensors (15) are fixedly installed on the telescopic ends of the multiple hydraulic cylinders (14). Clamping plates (16) are fixedly installed on one side of the multiple pressure sensors (15).

9. A heavy-duty machine tool gantry boring and milling composite device according to claim 8, characterized in that, The bottom of the clamp (16) is higher than the top of the support platform (2).

10. A method of using a heavy-duty machine tool gantry boring and milling composite device according to any one of claims 1 to 9, characterized in that: The following steps are included: S1: Workpiece clamping and fixing operation: Place the workpiece to be processed on the support platform (2) of the base (1). Select the hydraulic cylinder two (14) at the corresponding position according to the shape of the workpiece and extend it. The hydraulic cylinder two (14) pushes the corresponding clamping plate (16) to move closer to the workpiece and clamp it. At the same time, the pressure sensor (15) monitors the clamping pressure in real time. After the pressure reaches the set threshold, the hydraulic cylinder two (14) is shut down to complete the workpiece positioning and locking. S2: Install the required boring bar on the boring head (10) and the required milling cutter on the milling head (12). Adjust the positions of the boring bar and the milling cutter as follows: A. Longitudinal adjustment: Start motor 1 (35) to run, drive threaded rod (34) to rotate, drive moving seat (32) to slide in rectangular groove on the left, moving seat (32) drives gantry (4) to move synchronously, gantry (4) drives guide seat (33) to slide in rectangular groove on the right along the length of guide rod (36), thus realizing the adjustment of the front and rear positions of boring tool and milling cutter; B. Horizontal adjustment: Control the electric slide (6) to slide along the guide rail (5) at the top of the gantry (4), which drives the two sets of adjustment components (8), boring spindle box (9), boring cutter head (10), milling spindle box (11), and milling cutter head (12) to move horizontally left and right, thereby realizing the adjustment of the left and right positions of the boring cutter and milling cutter; C. Height adjustment: Two hydraulic cylinders (81) are controlled to extend or retract, which drives the corresponding adjustment box (82) to rise and fall. At the same time, the displacement sensor (88) collects the lifting data in real time, thus realizing the precise adjustment of the height position of the boring bar and the milling cutter. D. Orientation adjustment: Control the operation of two motors (87) respectively, drive the corresponding shaft (83) and main gear (84) to rotate, and use the meshing transmission of main gear (84) and auxiliary gear (86) to drive shaft (85) to rotate. At the same time, the angle sensor (89) detects the rotation angle of shaft (85) in real time, so as to realize the precise adjustment of the orientation position of boring tool and milling cutter. S3: Perform boring and milling operations as follows: A. By starting the milling spindle box (11) to drive the milling cutter head (12) and the milling cutter to rotate, and by adjusting the front and back position, left and right position, height position and orientation position of the milling cutter, the vertical, side, multi-face and multi-directional milling of the workpiece can be realized; B. By starting the boring spindle box (9) to drive the boring tool disc (10) and the boring tool to rotate, and by adjusting the front and back position, left and right position, height position and orientation position of the boring tool, the vertical, side, multi-face and multi-directional boring of the workpiece can be realized. S4: After all the workpieces have been processed, control each hydraulic cylinder (14) to retract and reset, so that the clamping plate (16) returns to its original position and cancels the clamping of the workpiece, and the processed workpiece can be removed from the support table (2).

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