A movable beam and column gantry vertical milling and welding hybrid machine tool

Abstract

The present application relates to gantry vertical milling and welding composite machine tool technical field, concretely is a kind of dynamic beam dynamic column type gantry vertical milling and welding composite machine tool, solve the problem that the existing composite machine tool is welded to workpiece, for the workpiece of different shapes is welded, need to change welding position constantly for welding torch, waste more time in this process, thereby reduce the welding efficiency problem.It includes machine tool module, machine tool module includes machining platform, machining platform moving drive structure and machine base, machining platform moving drive structure is located inside the machine base, for driving machining platform;Gantry, gantry is located above the machine tool module and the bottom end with the side surface of machine tool module is fixed;Milling module, milling module includes lifting main shaft, horizontal translation structure, vertical translation mechanism and main shaft drive motor.The present application carries out synchronous welding operation to the workpiece of different shapes multiple sides, need not change the position of welding torch, shorten the welding time, thereby improve the welding efficiency.

Description

Technical Field

[0001] This invention relates to the field of gantry vertical milling and welding composite machine tool technology, specifically a moving beam and moving column type gantry vertical milling and welding composite machine tool. Background Technology

[0002] A gantry vertical machining center, also known as a CNC gantry machining center, is a large CNC machine tool with its spindle Z-axis perpendicular to the worktable. Its core structure is a portal frame composed of double columns and a top beam. It is designed for high-precision machining of large and complex workpieces. It adopts a gantry structure, has a large stroke and a high-load-bearing worktable, and its spindle speed range covers 10-6000 r / min. It is equipped with a high-speed feed system and a positioning accuracy of ±0.015 mm / total length. The gantry vertical milling and welding composite machine tool is a type of gantry vertical machining center. It is a composite machining equipment that integrates gantry structure, vertical spindle layout, milling and welding functions.

[0003] Existing composite machine tools require the welding torch to constantly change its position when welding workpieces of different shapes, which wastes a lot of time and reduces welding efficiency. Therefore, they do not meet the current requirements. To address this, we propose a moving beam and moving column gantry vertical milling and welding composite machine tool. Summary of the Invention

[0004] The purpose of this invention is to provide a moving beam and moving column type gantry vertical milling and welding composite machine tool to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, the present invention provides the following technical solution: a moving beam and moving column type gantry vertical milling and welding composite machine tool, comprising: The machine tool module includes a machining platform, a machining platform moving drive structure, and a machine base. The machining platform moving drive structure is located inside the machine base and is used to drive the machining platform. The gantry frame is located above the machine tool module and its bottom end is fixed to the side of the machine tool module. The milling module includes a lifting spindle, a horizontal translation structure, a vertical translation mechanism, and a spindle drive motor. The bottom of the lifting spindle is detachably equipped with a milling cutter for milling workpieces fixed on the machining platform. The welding module includes a control robotic arm, an electric telescopic rod, a fixed block, and a welding operation mechanism. The fixed block is fixed to the outside of the vertical translation mechanism of the milling module. The control robotic arm is rotatably connected to the fixed block and has an electric telescopic rod fixed to its end. The welding operation mechanism is fixed to the bottom of the electric telescopic rod. The horizontal and vertical orientation of the welding operation mechanism is adjusted by the control robotic arm and the electric telescopic rod, and then the welding operation mechanism is used to weld and reinforce the connection parts of the workpiece.

[0006] Preferably, it also includes a mobile platform, the inside of which is provided with an installation compartment. A circular hole runs through the surface of the mobile platform and communicates with the installation compartment. A sealing mechanism and a lifting hydraulic rod are installed inside the installation compartment. A workpiece adjustment mechanism is fixed at the top of the lifting hydraulic rod, and the lifting hydraulic rod is connected to a hydraulic oil pump and a hydraulic oil tank through a hydraulic oil pipe.

[0007] Preferably, the workpiece adjustment mechanism includes a lifting block, which is fixed to the end of a lifting hydraulic rod. Multiple mounting grooves are provided through the surface of the lifting block, and a supporting rotating block is installed inside each groove. A rotating shaft passes through the axis of the supporting rotating block, and the end of the rotating shaft is rotatably connected to the lifting block. A transmission rotary table is rotatably installed inside the lifting block, and the upper surface of the transmission rotary table is in frictional contact with the bottom of the supporting rotating block. An adjustment motor is also fixed inside the lifting block, and an adjustment main gear is fixed to the output shaft of the adjustment motor. A transmission gear ring is fixed to the bottom surface of the transmission rotary table, and a transmission assembly for transmission is provided between the transmission gear ring and the adjustment motor.

[0008] Preferably, the welding operation mechanism includes a fixed plate, which is fixed to the bottom end of the electric telescopic rod. A rotating seat is rotatably mounted on the bottom of the fixed plate. Multiple connecting arms are fixed in a circular array on the outer side of the rotating seat, with no less than four connecting arms. An adjusting telescopic rod is fixed to the inner side of the bottom end of each connecting arm. A welding component is fixed to the movable end of the adjusting telescopic rod. The welding component includes a support plate, which is fixed to the movable end of the adjusting telescopic rod. An adjusting motor is fixed to one end of the support plate. An adjusting screw is rotatably engaged on the inner side of the support plate. The output shaft of the adjusting motor passes through the end of the support plate and is fixed to the end of the adjusting screw. An adjusting slider is slidably mounted on the outer side of the adjusting screw via a thread.

[0009] Preferably, the top of the adjusting slider is provided with a snap-fit ​​groove, the inside of which a welding gun is snapped in, and a cable is fixed to the top of the welding gun. One end of the cable passes through the connecting arm and connects to the welding equipment. A first infrared ranging sensor and a second infrared ranging sensor are fixed to the outside of the adjusting slider. The first infrared ranging sensor and the second infrared ranging sensor are respectively fixed on two adjacent vertical surfaces.

[0010] Preferably, the upper surface of the connecting arm is provided with a through hole, and the outer surface of the connecting arm is provided with a cable fixing groove. The cable includes a fixed section, a telescopic section and a connecting section. The fixed section is snapped into the inside of the cable fixing groove. The top end of the fixed section passes through the pitch motor and is fixed to the connecting arm. The connecting section is fixed to the top end of the welding gun. The telescopic section is located between the fixed section and the connecting section and is fixed. The telescopic section is distributed in a spiral shape.

[0011] Preferably, the transmission assembly includes three first adjusting transmission pair gears and two second adjusting transmission pair gears. The axes of the first adjusting transmission pair gears and the second adjusting transmission pair gears are inserted through a positioning support column. The positioning support column is fixed to the lifting block, and the first adjusting transmission pair gears and the second adjusting transmission pair gears are rotatably connected to the positioning support column by roller bearings. The lowermost first adjusting transmission pair gear meshes with the adjusting main gear, and the uppermost first adjusting transmission pair gear meshes with the transmission gear ring. The two second adjusting transmission pair gears are coaxial with the two uppermost first adjusting transmission pair gears and are located below the corresponding first adjusting transmission pair gears. The second adjusting transmission pair gears and the first adjusting transmission pair gears at their horizontal level are engaged.

[0012] Preferably, the sealing mechanism includes two symmetrically positioned electric telescopic rods, which are fixed inside the moving platform. A moving plate is fixed to the end of each electric telescopic rod, and a sealing plate is provided above the moving plate. A sealing strip is embedded on the surface of the sealing plate, and a retractable permanent magnet is fixed to the bottom surface of the sealing plate. A retractable and discharge magnet is fixed to the upper surface of the moving plate. Multiple reset support springs are provided between the sealing plate and the moving plate. When the retractable and discharge magnets are energized, the magnetic attraction force on the retractable and discharge permanent magnets is greater than the sum of the elastic forces of the reset support springs.

[0013] Preferably, the upper surface of the fixing plate is provided with a circular hole, the rotating seat includes a rotating ring, the axis of the circular hole coincides with the axis of the rotating ring, a gear ring is fixed on the inner side of the rotating ring, and an annular groove is also provided on the inner side of the rotating ring. Two symmetrically distributed limiting support blocks are provided on the inner side of the rotating ring. The top of the limiting support block is connected to the control robot arm by screws, and the bottom outer side of the limiting support block is provided with an arc-shaped protrusion, which is engaged in the annular groove.

[0014] Preferably, the upper, lower, and side surfaces of the arc-shaped protrusion are all inlaid with balls, which roll in contact with the inner wall of the annular groove. A rotary motor is fixed to the bottom of one of the limiting support blocks. The output shaft of the rotary motor is vertically downward and a transmission gear is fixed to its outer side. The transmission gear meshes with the gear ring, and the maximum rotation angle of the rotating seat is ninety degrees.

[0015] Compared with the prior art, the beneficial effects of the present invention are: 1. This invention opens the sealing mechanism and then uses the workpiece adjustment mechanism to lift the placed workpiece, creating a slight gap between the workpiece and the moving platform. Subsequently, the workpiece adjustment mechanism corrects the angle deviation of the workpiece. Compared with manual adjustment, this reduces the labor intensity of workers and does not damage the workpiece.

[0016] 2. This invention utilizes a rotating seat to drive the welding torch in a circular motion to achieve welding of circular workpieces, or controls the position of the welding torch by adjusting the telescopic rod so that each welding torch contacts the straight edge welding part of the square workpiece. Then, multiple pitch-adjusting motors control the linear movement of each welding torch, and welding operations are performed on multiple straight edges of the square workpiece at the same time. During this process, there is no need to frequently lift and change the position of the welding torch, shortening the welding time and thus improving welding efficiency. 3. The present invention uses a cable composed of a fixed section, a telescopic section and a connecting section to ensure that the cable can extend freely when the welding gun moves in parallel, thus avoiding tearing of the cable. The cable is fixed to the connecting arm through the cable fixing groove, and the rotation angle of the rotating seat is restricted, thereby preventing the cable from getting tangled when the welding gun rotates and welds. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the welding module of the present invention; Figure 3 This is a schematic diagram of the welding operation mechanism of the present invention; Figure 4 This is a schematic diagram of the cable structure of the present invention; Figure 5 This is a schematic diagram of the connecting arm of the present invention; Figure 6 This is a schematic diagram of the structure of the rotary seat of the present invention; Figure 7 This is a schematic diagram of the structure of the mobile platform of the present invention; Figure 8 This is a schematic diagram of the sealing mechanism of the present invention; Figure 9 This is a cross-sectional view of the mobile platform of the present invention; Figure 10 This is a schematic diagram of the workpiece adjustment mechanism of the present invention; Figure 11 This is a schematic diagram of the transmission assembly of the present invention.

[0018] In the diagram: 1. Machine tool module; 2. Gantry frame; 3. Milling module; 4. Welding module; 41. Controlled robotic arm; 42. Electric telescopic rod; 43. Fixed block; 44. Welding operating mechanism; 4401. Fixed plate; 4402. Rotary seat; 44021. Rotary ring; 44022. Gear ring; 44023. Transmission gear; 44024. Rotary motor; 44025. Limiting support block; 44026. Ring groove; 4403. Connecting arm; 4404. Cable; 44041. Fixed section; 44042. Telescopic section; 44043. Connecting section; 4405. Welding torch; 4406. Adjustable telescopic rod; 4407. Support plate; 4408. Adjusting slider; 4409. Adjusting screw; 4410. First infrared ranging sensor; 4411. Second infrared ranging sensor; 4412. Snap-fit ​​slot; 4413. Adjustable distance motor; 4414. Cable fixing slot; 4415. Insertion hole; 5. Moving platform; 6. Sealing mechanism; 601. Sealing plate; 602. Sealing strip; 603. Moving plate; 604. Displacement electric telescopic rod; 605. Retractable permanent magnet; 606. Retractable and discharge magnet; 607. Reset support spring; 7. Round hole; 8. Mounting chamber; 9. Workpiece adjustment mechanism; 901. Lifting block; 902. Mounting slot; 903. Support rotating block; 904. Transmission rotary table; 905. Transmission gear ring; 906. Adjusting motor; 907. Adjusting main gear; 908. First adjusting transmission pair gear; 909. Second adjusting transmission pair gear; 10. Lifting hydraulic rod. Detailed Implementation

[0019] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments.

[0020] like Figure 1 As shown, a moving beam and moving column type gantry vertical milling and welding composite machine tool includes: Machine tool module 1 includes a machining platform, a machining platform moving drive structure, and a machine base. The machining platform moving drive structure is located inside the machine base and is used to drive the machining platform. Gantry 2, located above machine tool module 1 and with its bottom end fixed to the side of machine tool module 1; Milling module 3 includes a lifting spindle, a horizontal translation structure, a vertical translation mechanism, and a spindle drive motor. A milling cutter is detachably mounted on the bottom of the lifting spindle for milling workpieces fixed on the machining platform. Welding module 4 includes a control robotic arm 41, an electric telescopic rod 42, a fixed block 43, and a welding operation mechanism 44. The fixed block 43 is fixed to the outside of the vertical translation mechanism of milling module 3. The control robotic arm 41 is rotatably connected to the fixed block 43 and the electric telescopic rod 42 is fixed at its end. The welding operation mechanism 44 is fixed at the bottom of the electric telescopic rod 42. The horizontal and vertical orientation of the welding operation mechanism 44 is adjusted by the control robotic arm 41 and the electric telescopic rod 42, and then the welding operation mechanism 44 is used to weld and reinforce the connection part of the workpiece.

[0021] like Figure 1 , Figures 9 to 11 As shown, it also includes a mobile platform 5, with an installation chamber 8 inside the mobile platform 5. A circular hole 7 runs through the surface of the mobile platform 5 and communicates with the installation chamber 8. A sealing mechanism 6 and a lifting hydraulic rod 10 are installed inside the installation chamber 8. A workpiece adjustment mechanism 9 is fixed at the top of the lifting hydraulic rod 10, and the lifting hydraulic rod 10 is connected to a hydraulic oil pump and a hydraulic oil tank through a hydraulic oil pipe.

[0022] The workpiece adjustment mechanism 9 includes a lifting block 901, which is fixed to the end of the lifting hydraulic rod 10. Multiple mounting grooves 902 are provided through the surface of the lifting block 901. A supporting rotating block 903 is installed inside the mounting grooves 902. A rotating shaft passes through the axis of the supporting rotating block 903, and the end of the rotating shaft is rotatably connected to the lifting block 901. A transmission rotary table 904 is rotatably mounted inside the lifting block 901. The upper surface of the transmission rotary table 904 is in frictional contact with the bottom of the supporting rotating block 903. An adjustment motor 906 is also fixed inside the lifting block 901. The output shaft of 906 is fixed with an adjusting main gear 907, and the bottom surface of the transmission rotary table 904 is fixed with a transmission gear ring 905. A transmission assembly for transmission is provided between the transmission gear ring 905 and the adjusting motor 906. The lifting hydraulic rod 10 pushes the lifting block 901 out of the round hole 7, so that the lifting block 901 and the supporting rotating block 903 lift the workpiece upward. Then, the adjusting motor 906 drives the transmission rotary table 904 to rotate, thereby driving the supporting rotating block 903 to roll by friction through the transmission rotary table 904, so as to correct the angle of the workpiece on the surface of the supporting rotating block 903.

[0023] The transmission assembly includes three first adjusting transmission pair gears 908 and two second adjusting transmission pair gears 909. Positioning support columns are inserted through the axes of the first and second adjusting transmission pair gears 908 and 909. The positioning support columns are fixed to the lifting block 901, and the first and second adjusting transmission pair gears 908 and 909 are rotatably connected to the positioning support columns using roller bearings. The lowermost first adjusting transmission pair gear 908 meshes with the adjusting main gear 907, and the uppermost first adjusting transmission pair gear 908 meshes with the transmission gear. The ring 905 is engaged, and the two second adjustment transmission gears 909 are coaxial with the two first adjustment transmission gears 908 located at the upper position and are located below the corresponding first adjustment transmission gears 908. The second adjustment transmission gears 909 and the first adjustment transmission gears 908 horizontally therewith are engaged. The output speed of the adjustment motor 906 is reduced by the first adjustment transmission gears 908 and the second adjustment transmission gears 909, so that the workpiece is slowly rotated by the support rotating block 903, thereby achieving small-angle adjustment of the workpiece.

[0024] like Figures 7 to 9 As shown, the sealing mechanism 6 includes two symmetrically positioned electric telescopic rods 604. The electric telescopic rods 604 are fixed inside the moving platform 5, and a moving plate 603 is fixed to the end of each electric telescopic rod 604. A sealing plate 601 is provided above the moving plate 603. A sealing strip 602 is embedded on the surface of the sealing plate 601. A retractable permanent magnet 605 is fixed to the bottom surface of the sealing plate 601. A retractable discharge magnet 606 is fixed to the upper surface of the moving plate 603. Multiple reset support springs 607 are provided between the sealing plate 601 and the moving plate 603. When the retractable discharge magnet 606 is energized, the magnetic attraction force of the retractable permanent magnet 605 is greater than the sum of the elastic forces of the reset support springs 607. The sealing mechanism 6 is used to seal the circular hole 7 to prevent coolant from entering the moving platform 5 through the circular hole 7 during milling of the workpiece.

[0025] like Figures 2 to 6 As shown, the welding operation mechanism 44 includes a fixed plate 4401, which is fixed to the bottom end of the electric telescopic rod 42. A rotating seat 4402 is rotatably mounted on the bottom of the fixed plate 4401. Multiple connecting arms 4403 are fixed in a circular array on the outer side of the rotating seat 4402. The number of connecting arms 4403 is not less than four. An adjusting telescopic rod 4406 is fixed to the inner side of the bottom end of the connecting arm 4403. A welding component is fixed to the movable end of the adjusting telescopic rod 4406. When the rotating seat 4402 rotates, it drives the connecting arms 4403, the adjusting telescopic rod 4406 and the welding component to rotate, which enables welding operations on circular parts.

[0026] The welding component includes a support plate 4407, which is fixed to the movable end of an adjusting telescopic rod 4406. A pitch motor 4413 is fixed to one end of the support plate 4407. An adjusting screw 4409 is rotatably engaged on the inner side of the support plate 4407. The output shaft of the pitch motor 4413 passes through the end of the support plate 4407 and is fixed to the end of the adjusting screw 4409. An adjusting slider 4408 is slidably installed on the outer side of the adjusting screw 4409 via a thread. The top of the adjusting slider 4408 is provided with a locking groove 4412. A welding torch 4405 is locked inside the locking groove 4412. A cable 4404 is fixed to the top of the welding torch 4405. One end of the cable 4404 passes through a connecting arm 4403 and is connected to the welding equipment. The movement of the welding torch 4405 is controlled by the pitch motor 4413, the adjusting screw 4409, and the adjusting slider 4408, thereby allowing the welding torch 4405 to move back and forth to weld the straight edge of the workpiece.

[0027] A first infrared ranging sensor 4410 and a second infrared ranging sensor 4411 are fixed on the outer side of the adjusting slider 4408. The first infrared ranging sensor 4410 and the second infrared ranging sensor 4411 are respectively fixed on two adjacent vertical surfaces. The first infrared ranging sensor 4410 and the second infrared ranging sensor 4411 are used to monitor the distance between the welding torch 4405 and the workpiece and the end of the support plate 4407, so as to accurately control the position and movement trajectory of the welding torch 4405.

[0028] The upper surface of the connecting arm 4403 is provided with a through hole 4415, and the outer surface of the connecting arm 4403 is provided with a cable fixing groove 4414. The cable 4404 includes a fixed section 44041, a telescopic section 44042, and a connecting section 44043. The fixed section 44041 is snapped into the inside of the cable fixing groove 4414. The top end of the fixed section 44041 passes through the pitch motor 4413 and is fixed to the connecting arm 4403. The connecting section 44043 is fixed to the top end of the welding torch 4405. The telescopic section 44042 is located between the fixed section 44041 and the connecting section 44043 and is fixed. The telescopic section 44042 is spirally distributed. The spirally distributed telescopic section 44042 can extend its length after being subjected to force, thereby reducing the overall tension on the cable 4404, preventing the cable 4404 from breaking, and ensuring that the linear movement of the welding torch 4405 is not affected.

[0029] A circular hole is provided through the upper surface of the fixed plate 4401. The rotating seat 4402 includes a rotating ring 44021. The axis of the circular hole coincides with the axis of the rotating ring 44021. A gear ring 44022 is fixed to the inner side of the rotating ring 44021. An annular groove 44026 is also provided on the inner side of the rotating ring 44021. Two symmetrically distributed limiting support blocks 44025 are provided on the inner side of the rotating ring 44021. The top of the limiting support block 44025 is connected to the control robot arm 41 by screws. An arc-shaped protrusion is provided on the outer side of the bottom end of the limiting support block 44025. The arc-shaped protrusion is engaged in the annular groove 44026. The limiting support block 44025 is used to suspend and support the rotating ring 44021, ensuring that the rotating ring 44021 can rotate freely and will not fall off axially.

[0030] The upper, lower, and side surfaces of the arc-shaped protrusion are all inlaid with balls. The balls roll in contact with the inner wall of the ring groove 44026. The balls reduce the contact friction between the limiting support block 44025 and the rotating ring 44021, thereby making the rotation of the rotating ring 44021 smoother.

[0031] One of the limiting support blocks 44025 has a rotary motor 44024 fixed at its bottom. The output shaft of the rotary motor 44024 is vertically downward and a transmission gear 44023 is fixed on its outer side. The transmission gear 44023 meshes with the gear ring 44022, and the maximum rotation angle of the rotating seat 4402 is ninety degrees. The rotation angle of the transmission gear 44023 is limited, thereby controlling the rotation angle of the welding torch 4405, so as to prevent the cable 4404 from getting tangled when the welding torch 4405 is performing rotary welding.

[0032] When performing milling or welding operations on a workpiece, the workpiece to be processed is first fixed on the moving platform 5 of the machine tool module 1 using a tooling fixture. After the workpiece is placed on the surface of the moving platform 5, the discharge magnet 606 is energized, which magnetically attracts the discharge permanent magnet 605 downward, causing the sealing plate 601 to descend and the reset support spring 607 to be compressed. At this time, the sealing plate 601 is in contact with the moving plate 603. The displacement electric telescopic rod 604 is energized and starts to move the moving plate 603 and the sealing plate 601 to one side, exposing the workpiece adjustment mechanism 9. At this time, the lifting hydraulic rod 10 is activated and conveys the workpiece adjustment mechanism 9 upward, so that the support rotating block 903 contacts the bottom of the workpiece, and the... The workpiece is separated from the moving platform 5 by lifting hydraulic rod 10, lifting block 901, and supporting rotating block 903. After the workpiece is lifted, the adjusting motor 906 is powered on and starts, and drives the transmission gear ring 905 and the transmission rotary table 904 to rotate slowly through the adjusting main gear 907 and transmission group. When the transmission rotary table 904 rotates, it causes the supporting rotating block 903 to roll due to friction. The rolling supporting rotating block 903 drives the workpiece to rotate through friction, thereby correcting the angle of the workpiece that is not placed neatly. No manual operation is required, which reduces the workload of the staff and avoids the use of external objects to knock on the workpiece, thus avoiding damage to the surface of the workpiece. Then start the equipment to process the workpiece. When milling the workpiece, install the milling cutter on the lifting spindle, and then start the machine tool. The milling process of the workpiece can be completed through the milling module 3. When welding a workpiece, the workpiece to be welded is docked with the workpiece fixed on the processing platform. Then the machine tool is started, and the robotic arm 41 is controlled to move the welding operation mechanism 44 directly above the workpiece to be welded. Subsequently, the milling module 3 drives the welding module 4 to descend, so that the top of the workpiece passes through the round hole of the fixed plate 4401. At this time, the adjusting slider 4408 is located in the middle of the support plate 4407. Multiple first infrared ranging sensors 4410 simultaneously monitor the position of each adjusting slider 4408 and the workpiece. At this time, each adjusting telescopic rod 4406 is started independently. The adjusting telescopic rod 4406 drives the support plate 4407, the adjusting slider 4408 and the welding gun 4405 to move towards the workpiece until the bottom end of the welding gun 4405 contacts the outer side of the workpiece. Then, the electric telescopic rod 42 drives the second infrared ranging sensor 4411 to descend until the end of the welding gun 4405 is located at the connection part of the two workpieces. Then, the welding motion mode of the welding gun 4405 is selected according to the shape of the workpiece. When the workpiece to be welded is a square workpiece, the adjusting motor 4413 is started and drives the adjusting slider 4408 to move linearly along the axis of the support plate 4407 through the support plate 4407, so that the welding gun 4405 moves along the connection part of the workpiece to perform welding reinforcement. When the workpiece is circular, the rotary motor 44024 starts and drives the transmission gear 44023 to reciprocate within a 90-degree range. This causes the transmission gear 44023 to drive the rotating ring 44021 and the welding torch 4405 to reciprocate within a 90-degree angle range through the gear ring 44022. This allows the finishing parts of multiple welding torches 4405 to be connected, thereby achieving continuous welding of the circumferential weld of the circular workpiece. During this process, there is no need to frequently lift and change the position of the welding torch 4405, shortening the welding time and thus improving welding efficiency.

[0033] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A moving beam and moving column type gantry vertical milling and welding composite machine tool, characterized in that: include: The machine tool module (1) includes a machining platform, a machining platform moving drive structure and a machine base. The machining platform moving drive structure is located inside the machine base and is used to drive the machining platform. Gantry (2), the gantry (2) is located above the machine tool module (1) and its bottom end is fixed to the side of the machine tool module (1); The milling module (3) includes a lifting spindle, a horizontal translation structure, a vertical translation mechanism and a spindle drive motor. The bottom of the lifting spindle is detachably equipped with a milling cutter for milling workpieces fixed on the processing platform. The welding module (4) includes a control robotic arm (41), an electric telescopic rod (42), a fixed block (43), and a welding operation mechanism (44). The fixed block (43) is fixed on the outside of the vertical translation mechanism of the milling module (3). The control robotic arm (41) is rotatably connected to the fixed block (43) and the electric telescopic rod (42) is fixed at the end. The welding operation mechanism (44) is fixed at the bottom end of the electric telescopic rod (42). The horizontal and vertical orientation of the welding operation mechanism (44) is adjusted by the control robotic arm (41) and the electric telescopic rod (42), and then the welding operation mechanism (44) is used to weld and reinforce the workpiece connection.

2. The moving beam and moving column type gantry vertical milling and welding composite machine tool according to claim 1, characterized in that: It also includes a mobile platform (5), which has an installation chamber (8) inside. A circular hole (7) runs through the surface of the mobile platform (5) and is connected to the installation chamber (8). A sealing mechanism (6) and a lifting hydraulic rod (10) are installed inside the installation chamber (8). A workpiece adjustment mechanism (9) is fixed at the top of the lifting hydraulic rod (10), and the lifting hydraulic rod (10) is connected to a hydraulic oil pump and a hydraulic oil tank through a hydraulic oil pipe.

3. The moving beam and moving column type gantry vertical milling and welding composite machine tool according to claim 2, characterized in that: The workpiece adjustment mechanism (9) includes a lifting block (901), which is fixed to the end of the lifting hydraulic rod (10). The surface of the lifting block (901) is provided with multiple mounting grooves (902). A support rotating block (903) is installed inside the mounting groove (902). A rotating shaft is provided through the axis of the support rotating block (903). The end of the rotating shaft is rotatably connected to the lifting block (901). A transmission rotating table (904) is rotatably installed inside the lifting block (901). The upper surface of the transmission rotating table (904) is in frictional contact with the bottom of the support rotating block (903). An adjustment motor (906) is also fixed inside the lifting block (901). An adjustment main gear (907) is fixed on the output shaft of the adjustment motor (906). A transmission gear ring (905) is fixed on the bottom surface of the transmission rotating table (904). A transmission group for transmission is provided between the transmission gear ring (905) and the adjustment motor (906).

4. The moving beam and moving column type gantry vertical milling and welding composite machine tool according to claim 1, characterized in that: The welding operation mechanism (44) includes a fixed plate (4401), which is fixed to the bottom end of the electric telescopic rod (42). A rotating seat (4402) is rotatably mounted on the bottom of the fixed plate (4401). Multiple connecting arms (4403) are fixed in a circular array on the outer side of the rotating seat (4402). The number of connecting arms (4403) is not less than four. An adjusting telescopic rod (4406) is fixed to the inner side of the bottom end of the connecting arm (4403). A welding component is fixed to the movable end of the adjusting telescopic rod (4406). The welding component includes a support plate (4407), which is fixed to the movable end of the adjusting telescopic rod (4406). A pitch motor (4413) is fixed to one end of the support plate (4407). An adjusting screw (4409) is rotatably engaged on the inner side of the support plate (4407). The output shaft of the pitch motor (4413) passes through the end of the support plate (4407) and is fixed to the end of the adjusting screw (4409). An adjusting slider (4408) is slidably installed on the outer side of the adjusting screw (4409) through a thread.

5. The moving beam and moving column type gantry vertical milling and welding composite machine tool according to claim 4, characterized in that: The top of the adjusting slider (4408) is provided with a snap-fit ​​groove (4412), and a welding gun (4405) is snapped into the inside of the snap-fit ​​groove (4412). A cable (4404) is fixed to the top of the welding gun (4405). One end of the cable (4404) passes through the connecting arm (4403) and is connected to the welding equipment. A first infrared ranging sensor (4410) and a second infrared ranging sensor (4411) are fixed to the outside of the adjusting slider (4408). The first infrared ranging sensor (4410) and the second infrared ranging sensor (4411) are respectively fixed on two adjacent vertical surfaces.

6. The moving beam and moving column type gantry vertical milling and welding composite machine tool according to claim 4, characterized in that: The upper surface of the connecting arm (4403) is provided with a through hole (4415), and the outer surface of the connecting arm (4403) is provided with a cable fixing groove (4414). The cable (4404) includes a fixed section (44041), a telescopic section (44042), and a connecting section (44043). The fixed section (44041) is snapped into the inside of the cable fixing groove (4414). The top end of the fixed section (44041) passes through the pitch motor (4413) and is fixed to the connecting arm (4403). The connecting section (44043) is fixed to the top end of the welding torch (4405). The telescopic section (44042) is located between the fixed section (44041) and the connecting section (44043) and is fixed. The telescopic section (44042) is distributed in a spiral shape.

7. A moving beam and moving column type gantry vertical milling and welding composite machine tool according to claim 3, characterized in that: The transmission assembly includes three first adjusting transmission gears (908) and two second adjusting transmission gears (909). The axes of the first adjusting transmission gears (908) and the second adjusting transmission gears (909) are inserted through a positioning support column. The positioning support column is fixed to the lifting block (901). The first adjusting transmission gears (908) and the second adjusting transmission gears (909) are rotatably connected to the positioning support column by roller bearings. The lowest first adjusting transmission gear (908) meshes with the adjusting main gear (907). The highest first adjusting transmission gear (908) meshes with the transmission gear ring (905). The two second adjusting transmission gears (909) are coaxial with the two first adjusting transmission gears (908) located above them and are located below the corresponding first adjusting transmission gears (908). The second adjusting transmission gears (909) and the first adjusting transmission gears (908) at the same level as them are engaged.

8. A moving beam and moving column type gantry vertical milling and welding composite machine tool according to claim 2, characterized in that: The sealing mechanism (6) includes two symmetrically positioned electric telescopic rods (604). The electric telescopic rods (604) are fixed inside the moving platform (5), and the ends of the electric telescopic rods (604) are fixed with moving plates (603). A sealing plate (601) is provided above the moving plate (603). A sealing strip (602) is embedded on the surface of the sealing plate (601). A retractable permanent magnet (605) is fixed on the bottom surface of the sealing plate (601). A retractable discharge magnet (606) is fixed on the upper surface of the moving plate (603). Multiple reset support springs (607) are provided between the sealing plate (601) and the moving strip (603). When the retractable discharge magnet (606) is energized, the magnetic attraction force of the retractable permanent magnet (605) is greater than the sum of the elastic forces of the reset support springs (607).

9. A moving beam and moving column type gantry vertical milling and welding composite machine tool according to claim 4, characterized in that: The upper surface of the fixed plate (4401) is provided with a circular hole. The rotating seat (4402) includes a rotating ring (44021). The axis of the circular hole coincides with the axis of the rotating ring (44021). A gear ring (44022) is fixed on the inner side of the rotating ring (44021). The inner side of the rotating ring (44021) is also provided with an annular groove (44026). The inner side of the rotating ring (44021) is provided with two symmetrically distributed limiting support blocks (44025). The top of the limiting support block (44025) is connected to the control robot arm (41) by screws. The bottom outer side of the limiting support block (44025) is provided with an arc-shaped protrusion, which is engaged in the annular groove (44026).

10. A moving beam and moving column type gantry vertical milling and welding composite machine tool according to claim 9, characterized in that: The upper, lower, and side surfaces of the arc-shaped protrusion are all inlaid with balls, which roll in contact with the inner wall of the annular groove (44026). A rotary motor (44024) is fixed to the bottom of one of the limiting support blocks (44025). The output shaft of the rotary motor (44024) is vertically downward and a transmission gear (44023) is fixed to its outer side. The transmission gear (44023) meshes with the gear ring (44022). The maximum rotation angle of the rotating seat (4402) is ninety degrees.

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