Surface milling machine for giant tank

Abstract

A surface milling machine for a giant tank, the surface milling machine comprising a lifting frame (1), a lifting assembly (2), two fixing assemblies (3), a tank outer wall moving mechanism (4), a milling cutter positioning and milling mechanism (5) and a level (6), wherein the lifting assembly (2) comprises electromagnets (29), each of which attracts a steel plate (32) on a side of one fixing assembly (3); the milling cutter positioning and milling mechanism (5) is disposed on one of the fixing assemblies (3), and the level (6) is fixedly mounted on the upper surface of the other one of the fixing assemblies (3); and rays emitted by the level can be received by a laser receiver (515) of the milling cutter positioning and milling mechanism (5), and the laser receiver (515) can convert a received laser signal into an electrical signal and transmit the electrical signal to a cabinet. By means of the cooperation of the laser receiver and the level, the surface milling machine for a giant tank realizes control over a servo motor to drive a small milling cutter to move for milling along the upper surface of a giant tank, thereby saving on manufacturing costs of a large milling machine and better adapting to usage on a giant tank; moreover, the level provides accuracy and precision for surface milling.

Description

A giant tank surface milling machine Technical Field

[0001] The invention relates to the technical field of plane milling machines, in particular to a giant tank plane milling machine. Background Art

[0002] Milling machines are versatile machine tools that can produce flat surfaces (horizontal and vertical), grooves (keyways, T-slots, dovetail slots, etc.), toothed parts (gears, spline shafts, sprockets), spiral surfaces (threads, spiral grooves), and various curved surfaces. They can also be used for machining the surfaces of rotating objects, machining internal holes, and performing cut-off operations. During operation, the workpiece is mounted on a worktable or an accessory such as an indexing head. The milling cutter rotates as the primary motion, supplemented by the feed motion of the worktable or milling head, to achieve the desired surface finish. Milling machines utilize multi-edge interrupted cutting, resulting in high productivity. Simply put, a milling machine is a machine tool capable of milling, drilling, and boring workpieces. Chinese patent "CN201310147037.2" discloses a milling machine fixture for processing the end faces of large wine bottle mold blanks. The fixture includes a base detachably connected to the milling machine and used to place the wine bottle mold blank, a hydraulic cylinder fixed to the base, a pressing portion that presses against one side of the wine bottle mold blank when fixing the wine bottle mold blank, and an abutting portion fixed to the base and used to press against the other side of the wine bottle mold blank. One end of the pressing portion is connected to the upper end of the piston rod of the hydraulic cylinder, and the other end is located above the wine bottle mold blank. The wine bottle mold blank is semi-cylindrical, and its chord plane is closely attached to the upper end face of the base. The pressing portion and the abutting portion abut against the curved side face of the wine bottle mold blank to fix the wine bottle mold blank to the base. The patent proposes: using the pressing portion and the abutting portion to fix the blank to the milling machine, and processing both end faces of the blank. Not only is the positioning firm, but the end faces can be processed in one go and used as reference surfaces, thereby reducing the number of processing steps.

[0003] As can be seen from the above-mentioned device, although the above-mentioned preparation method provides a good clamping method during the milling process of the can body, the applicant believes that the following defects still exist:

[0004] In the process of milling giant tank bodies on existing milling machines, it is very difficult to clamp and move the giant tank bodies due to their large size and weight and hollow structure. The large weight and strong holding force may cause them to deform, making it difficult to move the giant tank bodies to the workbench for milling. Large milling machines suitable for giant tank bodies are extremely expensive and require corresponding clamping, lifting and moving machines, resulting in low work efficiency and huge costs. Technical issues

[0005] (1) Technical problems solved: In view of the shortcomings of the existing technology, the present invention provides a giant tank plane milling machine, which has the advantages of relatively low cost and can mill the tank without moving and clamping the tank, and the accuracy of milling is ensured by the horizontal rays emitted by the spirit level. It solves the problem that in the process of milling giant tanks by existing milling machines, due to the large volume and weight of the giant tank and its hollow structure, it is very difficult to clamp and move it, and the large weight and strong holding force may cause it to deform, and the large milling machine that can adapt to giant tanks is expensive, resulting in low work efficiency and high cost. Technical Solutions

[0006] (II) Technical solution: To achieve the above-mentioned purpose, the present invention provides the following technical solution: A giant tank plane milling machine, comprising a lifting frame, a lifting assembly, a fixing assembly, a tank outer wall moving mechanism, a milling cutter positioning and milling mechanism, and a spirit level. Wheel grooves are provided on both sides of the lower part of the lifting frame, and two tires are provided on both sides of the inner surface of the wheel groove. The fixing assembly comprises a cylinder, which is fixedly mounted on the outer surface of the steel plate. The cylinder is fixedly connected to a push rod through an output shaft. The push rod is movably mounted on the inner surface of the steel plate, and the other end of the push rod is fixedly mounted on the outer surface of the arc-shaped splint. The upper surface of the arc-shaped splint A pulley is provided, and the pulley is movably installed on the inner surface of the slide groove, and the slide groove is provided at the lower end of the placement plate. The fixed component is connected to the lifting component, and the lifting component is provided on the inner surface of the lifting frame. The lifting component includes an electromagnet, and the electromagnet is attracted to the steel plate. A spirit level is fixedly installed on the upper surface of the placement plate on the right side. The spirit level is a plane level, which emits annular plane rays with itself as the center. The rays emitted by the spirit level can be received by a laser receiver in the milling cutter positioning and milling mechanism, and the laser receiver can convert the received laser signal into an electrical signal and transmit it to the chassis.

[0007] Preferably, the lifting assembly includes a motor, which is fixedly mounted on the right outer surface of the lifting frame. The motor is fixedly connected to a rotating shaft through an output shaft, and the rotating shaft is movably mounted on the inner surface of the lifting frame. Two active bevel gears are fixedly mounted on the outer surfaces of both ends of the rotating shaft.

[0008] Preferably, the active bevel gear is installed with two linked bevel gears through surface tooth engagement, the lower surface of the linked bevel gear is fixedly connected to a ball screw, the ball screw is installed with a U-shaped slider through surface thread engagement, the U-shaped slider is movably installed in the U-shaped slide groove, a connecting plate is fixedly installed on the outer surface of the U-shaped slide groove, and two electromagnets are fixedly installed on both sides of the outer surface of the connecting plate.

[0009] Preferably, the outer wall moving mechanism of the tank includes a servo motor, the servo motor is fixedly mounted on the inner wall of the arc-shaped splint through a motor base, the servo motor is fixedly connected to a driving shaft through an output shaft, the driving shaft is movably mounted on the inner surface of the driving shaft bracket, the driving shaft bracket is fixedly mounted on the inner wall of the arc-shaped splint, and a number of driving sprockets are fixedly mounted on the outer wall of the driving shaft.

[0010] Preferably, the driving sprocket is connected to the passive sprocket through a first chain transmission link, and a number of limiting rods are fixedly installed on the inner surfaces of the passive sprockets. The limiting rods are movably installed on the inner surface of the limiting rod bracket, and a roller is fixedly installed on the outer surface of the limiting rod.

[0011] Preferably, a linkage sprocket is provided below the passive sprocket, and the linkage sprocket is connected to a number of driven sprockets through a second chain transmission. Limit rods are fixedly installed on the inner surfaces of the driven sprockets, and the limit rods are movably installed on the inner surfaces of a number of limit rod brackets, and the limit rod brackets are fixedly installed on the inner wall of the arc-shaped splint.

[0012] Preferably, the milling cutter positioning and milling mechanism includes a stepper motor, the stepper motor is fixedly mounted on the outer surface of the side bracket, the side bracket is fixedly mounted on the upper surface of the left placement plate, the stepper motor is fixedly connected to the transmission shaft through the output shaft, the transmission shaft is movably mounted on the left inner surface of the two side brackets, a driving sprocket is fixedly mounted on the outer surface of the transmission shaft, the driving sprocket is connected to the rotating sprocket through a third chain transmission, a rotating rod is fixedly mounted on the inner surface of the rotating sprocket, and the rotating rod is movably mounted on the right inner surface of the two side brackets.

[0013] Preferably, a driving gear is fixedly installed on the outer surface of the rotating rod and the transmission shaft, and the driving gear is installed with a lifting gear plate through surface tooth engagement. Limit blocks are provided on both sides of the lifting gear plate, and the limit blocks are movably installed in the sliding grooves provided on the inner sides of the two side brackets.

[0014] Preferably, a chassis is fixedly mounted on the lower surface of the lifting tooth plate, a milling cutter motor is fixedly mounted on the upper surface of the chassis, a milling cutter is provided on the lower surface of the chassis, and the milling cutter is driven by the milling cutter motor. A slide is provided on the upper end of the lifting tooth plate, and the slide is movably mounted on the inner surface of the slide rail. The slide rail is fixedly mounted on the upper surface of the placement plate, and a laser receiver is fixedly mounted on the lower end of the slide. Beneficial effects

[0015] (III) Beneficial effects: Compared with the prior art, the present invention provides a giant tank plane milling machine with the following beneficial effects:

[0016] 1. This giant tank surface milling machine achieves precise and stable lifting of two steel plates through the coordination of the lifting and fixing components. The electromagnets on both sides drive the two steel plates through the rotation of the ball screw. The balls roll within the threaded screw, efficiently converting motor rotation into linear motion. The design has high precision, making the conversion of linear motion more accurate and reliable, and can withstand large loads. Because the giant tank is placed upright, after the fixing component rises to the upper end of the giant tank, the cylinder drives the curved clamping plate inward to clamp and fit tightly against the giant tank. This can clamp and fix tanks of different thicknesses. The curved clamping plate is made of elastic rubber material to adapt to slight curvature differences caused by different diameters during manufacturing. When both curved clamping plates are fully fitted to the giant tank, the electromagnets are turned off. Compared with existing super-large milling machines for milling giant tanks, this machine saves cost. Moreover, the tank can be placed upright by its own weight, and grinding can be performed without clamping the tank.

[0017] 2. The giant tank plane milling machine, through the cooperation between the tank outer wall moving mechanism and the milling cutter positioning milling mechanism, achieves the effect that after the arc-shaped clamping plates on both sides on the left drive the rollers to fit the outer wall of the giant tank, the stepper motor is controlled to drive the milling cutter to fit the upper surface of the giant tank, and then the parallel laser emitted by the level is recorded by the laser receiver and the value required for milling is input, and then the milling motor is turned on to mill the upper surface of the giant tank. During milling, the stepper motor drives the lifting gear plate and the laser receiver to continuously descend. When the numerical point set by the laser receiver receives the parallel laser, the milling stops, the milling cutter rises, and the roller drives the placement plate to move along the outer wall of the giant tank to a milling cutter position to continue milling. Through the cooperation of the laser receiver and the level, the tank outer wall moving mechanism is controlled to drive the small milling cutter to move and mill along the upper surface of the giant tank, which saves the cost of large milling machines and is more suitable for the use of giant tanks. The level also increases the accuracy and precision of the plane milling process. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] FIG1 is a schematic diagram of the overall structure of the present invention;

[0019] FIG2 is a schematic diagram of the internal structure of the lifting frame of the present invention;

[0020] FIG3 is a schematic diagram of a partial structure of the present invention;

[0021] FIG4 is a schematic diagram of the exploded structure of the fixing assembly of the present invention;

[0022] FIG5 is a schematic diagram of the cross-sectional structure of the placement plate of the present invention;

[0023] FIG6 is a schematic diagram of the back structure of the milling cutter positioning and milling mechanism of the present invention;

[0024] FIG7 is a front structural diagram of the milling cutter positioning and milling mechanism of the present invention.

[0025] The numbers in the figure are:

[0026] Lifting frame; 11. wheel groove; 12. tire;

[0027] Lifting assembly; 21. Motor; 22. Rotating shaft; 23. Active bevel gear; 24. Linking bevel gear; 25. Ball screw; 26. U-shaped slider; 27. U-shaped chute; 28. Connecting plate; 29. ​​Electromagnet;

[0028] Fixed assembly; 31, cylinder; 32, steel plate; 33, ejector rod; 34, arc-shaped clamping plate; 35, pulley; 36, slide; 37, placement plate;

[0029] Tank outer wall moving mechanism; 41, servo motor; 42, driving shaft; 43, driving shaft bracket; 44, driving sprocket; 45, first chain; 46, driven sprocket; 47, limit rod; 48, limit rod bracket; 49, roller; 410, linkage sprocket; 411, second chain; 412, driven sprocket;

[0030] Milling cutter positioning and milling mechanism; 51. Stepper motor; 52. Side bracket; 53. Transmission shaft; 54. Driving sprocket; 55. Third chain; 56. Rotating sprocket; 57. Rotating rod; 58. Driving gear; 59. Lifting gear plate; 510. Limit block; 511. Milling cutter motor; 512. Chassis; 513. Milling cutter; 514. Slide plate; 515. Laser receiver; 516. Slide rail; 6. Level. Modes for Carrying Out the Invention

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] Embodiment 1 of the present invention: Please refer to Figures 1-4, which include a lifting frame 1, a lifting assembly 2, a fixing assembly 3, a tank outer wall moving mechanism 4, a milling cutter positioning and milling mechanism 5, and a spirit level 6. Wheel grooves 11 are provided on the lower sides of the lifting frame 1, and two tires 12 are provided on both sides of the inner surface of the wheel groove 11. The lifting assembly 2 includes a motor 21, which is fixedly installed on the outer surface of the right side of the lifting frame 1. The motor 21 is fixedly connected to a rotating shaft 22 through an output shaft. The rotating shaft 22 is movably installed on the inner surface of the lifting frame 1. Two active bevel gears 23 are fixedly installed on the outer surfaces of both ends of the rotating shaft 22. The active bevel gear 23 is equipped with two linked bevel gears 24 through surface tooth engagement. A ball screw 25 is fixedly connected to the lower surface of the linked bevel gear 24. A U-shaped slider 26 is installed on the ball screw 25 through surface thread engagement. The U-shaped slider 26 is movably installed in the U-shaped slide 27. A connecting plate 28 is fixedly installed on the outer surface of the U-shaped slide 27. Two electromagnets 29 are fixedly installed on both sides of the surface, and the electromagnet 29 is attracted to the steel plate 32. The fixing assembly 3 includes a cylinder 31, and the cylinder 31 is fixedly installed on the outer surface of the steel plate 32. The cylinder 31 is fixedly connected to a push rod 33 through an output shaft. The push rod 33 is movably installed on the inner surface of the steel plate 32, and the other end of the push rod 33 is fixedly installed on the outer surface of the arc splint 34. The inner wall of the arc splint 34 is made of elastic rubber material. A pulley 35 is provided on the upper surface of the arc splint 34. The pulley 35 is an elastic rubber pulley. The pulley 35 is movably installed on the inner surface of the slide groove 36. The slide groove 36 is provided at the lower end of the placement plate 37. A spirit level 6 is fixedly installed on the upper surface of the right placement plate 37. The spirit level 6 is a plane level. It emits annular plane rays with itself as the center. The rays emitted by the spirit level 6 can be received by the laser receiver 515 in the milling cutter positioning and milling mechanism 5. The laser receiver 515 can convert the received laser signal into an electrical signal and transmit it to the chassis 512.

[0033] Embodiment 2 of the present invention: Please refer to Figures 3 and 5. The outer wall moving mechanism 4 of the tank includes a servo motor 41, which is fixedly mounted on the inner wall of the arc-shaped splint 34 through a motor base. The servo motor 41 is fixedly linked to a driving shaft 42 through an output shaft. The driving shaft 42 is movably mounted on the inner surface of a driving shaft bracket 43. The driving shaft bracket 43 is fixedly mounted on the inner wall of the arc-shaped splint 34. A plurality of driving sprockets 44 are fixedly mounted on the outer wall of the driving shaft 42. The driving sprocket 44 is connected to a passive sprocket 46 through a first chain 45. A limiting rod 47 is fixedly mounted on the inner surface of 46, and the limiting rod 47 is movably mounted on the inner surface of a limiting rod bracket 48. A roller 49 is fixedly mounted on the outer surface of the limiting rod 47. A linkage sprocket 410 is provided below the passive sprocket 46. The linkage sprocket 410 is connected to a number of driven sprockets 412 through a second chain 411. The inner surfaces of the several driven sprockets 412 are all fixedly mounted with limiting rods 47. The several limiting rods 47 are respectively movably mounted on the inner surfaces of the several limiting rod brackets 48, and the several limiting rod brackets 48 are fixedly mounted on the inner wall of the arc-shaped splint 34.

[0034] Embodiment 3 of the present invention: Please refer to Figures 3, 6 and 7. The milling cutter positioning and milling mechanism 5 includes a stepping motor 51. The stepping motor 51 is fixedly mounted on the outer surface of the side bracket 52. The side bracket 52 is fixedly mounted on the upper surface of the left placement plate 37. The stepping motor 51 is fixedly connected to the transmission shaft 53 through the output shaft. The transmission shaft 53 is movably mounted on the left inner surface of the two side brackets 52. A driving sprocket 54 is fixedly mounted on the outer surface of the transmission shaft 53. The driving sprocket 54 is connected to a rotating sprocket 56 through a third chain 55. A rotating rod 57 is fixedly mounted on the inner surface of the rotating sprocket 56. The rotating rod 57 is movably mounted on the right inner surface of the two side brackets 52. The rotating rod 57 and the outer surface of the transmission shaft 53 are fixed. A driving gear 58 is installed, and the driving gear 58 is installed with a lifting gear plate 59 through surface tooth engagement. Limit blocks 510 are set on both sides of the lifting gear plate 59, and the limit blocks 510 are movably installed in the slide grooves set on the inner sides of the two side brackets 52. A chassis 512 is fixedly installed on the lower surface of the lifting gear plate 59, and a milling cutter motor 511 is fixedly installed on the upper surface of the chassis 512. A milling cutter 513 is set on the lower surface of the chassis 512, and the milling cutter 513 is driven by the milling cutter motor 511. A slide plate 514 is provided on the upper end of the lifting gear plate 59, and the slide plate 514 is movably installed on the inner surface of the slide rail 516. The slide rail 516 is fixedly installed on the upper surface of the placement plate 37, and a laser receiver 515 is fixedly installed on the lower end of the slide plate 514.

[0035] The complete usage steps and working principles of the above-mentioned embodiments 1 to 3 are as follows:

[0036] First, it is necessary to open the electromagnets 29 on both sides to adsorb the steel plates 32 in the two fixing components 3 to the outer surfaces of the electromagnets 29 on both sides. A tank outer wall moving mechanism 4 and a milling cutter positioning and milling mechanism 5 are provided above one side fixing component 3, and a level 6 is provided above one side fixing component 3. Then, the lifting rod 1 is pushed to the outer edge of the giant tank body, and the starting motor 21 drives the two active bevel gears 23 to rotate through the rotating shaft 22. The two active bevel gears 23 drive the two ball screws 25 on the outer surfaces of the two linked bevel gears 24 to rotate at the same time. The ball screw 25 is a ball that rolls in the threaded screw, and the efficiency of converting motor rotation into linear motion is high. It has high precision in design, and the conversion of linear motion is more accurate and reliable, and can withstand larger loads. The rotation of the ball screw 25 drives the U-shaped slider 26 to move in the U-shaped slide 27. Since the U-shaped slider 26 moves in the U-shaped slide 27, it can withstand larger loads. The U-shaped slide 27 is designed to make the slider more stable during movement, so that the U-shaped slides 26 on both sides can be lifted and lowered stably and accurately. The U-shaped slide 26 drives the electromagnets 29 on both sides and the steel plates 32 adsorbed by the electromagnets 29 to rise to the top of the giant tank body. By adjusting the left and right directions of the lifting frame and closing the magnetism of the electromagnet 29, the arc-shaped splints 34 on both sides are placed on both sides above the giant tank body. When they are placed separately, when the arc-shaped splints 34 are completely placed on the outer wall of the giant tank body, the cylinder 31 is opened. The cylinder 31 pushes the arc-shaped splints 34 inwardly through the push rod 33. The arc-shaped splints 34 move inwardly in the slide 36 through the pulley 35. Since the arc-shaped splints 34 are made of elastic rubber material, they can fully fit with slightly different curvatures. The left side is also fitted with the inner wall through the roller 49 in the arc-shaped splint 34. After they are fully fitted, the cylinder 31 is closed and operated. At this moment, the arc-shaped splints 34 on both sides are fitted and tightened against the outer wall of the giant tank body.

[0037] Secondly, after the arc-shaped splint 34 clamps the outer wall of the giant tank, the two arc-shaped splints 34 on the left side drive the driving sprocket 44 to rotate through the servo motor 41, and the driving sprocket 44 is connected to the driven sprocket 46 through the transmission of the first chain 45, thereby driving the roller 49 to rotate, and the linkage sprocket 410 is connected to the several driven sprockets 412 through the second chain 411, so that the several rollers 49 rotate together. When the several rollers 40 rotate, the milling cutter positioning milling mechanism 5 on the upper surface of the placement plate 37 can be driven to move around the outer wall of the giant tank. Before the placement plate 37 moves, the stepping motor 51 and the level 6 are turned on, and the driving sprocket 54 is driven to rotate by the stepping motor 51. The driving sprocket 54 is connected to the rotating sprocket 56 through the third chain 55, thereby driving the two driving gears 58 to rotate at the same time. When the two driving gears 58 rotate When the lifting gear plate 59 is lowered, the lifting gear plate 59 is driven to move downward. When the lifting gear plate 59 is lowered, the laser receiver 515 is driven to move downward together through the slide plate 514. When the milling cutter 513 contacts the upper surface of the giant tank, the laser receiver 515 records the laser position emitted by the level 6 and transmits it. After the required grinding value is input, the milling cutter motor 511 is turned on to make the milling cutter 513 grind the upper surface of the giant tank. While grinding, the lifting gear plate 59 drives the laser receiver 515 to continue to descend. After the set numerical point senses the horizontal laser emitted by the level 6, the grinding work is stopped. The servo motor 41 is turned on to drive the milling cutter 513 to move and mill again. Since the giant tank itself is heavy and is placed upright, the milling cutter 513 does not need to clamp and fix the giant tank during the milling process of the giant tank. After the milling is completed, the electromagnet 29 is energized to adsorb the steel plates 32 on both sides and retract them.

[0038] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0039] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A giant tank surface milling machine, comprising a lifting frame (1), a lifting assembly (2), a fixing assembly (3), a tank outer wall moving mechanism (4), a milling cutter positioning and milling mechanism (5), and a level (6), wherein wheel grooves (11) are provided below both sides of the lifting frame (1), and two tires (12) are provided on both sides of the inner surface of the wheel groove (11), characterized in that: The fixing assembly (3) comprises a cylinder (31), wherein the cylinder (31) is fixedly mounted on the outer surface of the steel plate (32), wherein the cylinder (31) is fixedly connected to a push rod (33) via an output shaft, wherein the push rod (33) is movably mounted on the inner surface of the steel plate (32), wherein the other end of the push rod (33) is fixedly mounted on the outer surface of an arc-shaped clamping plate (34), wherein a pulley (35) is disposed on the upper surface of the arc-shaped clamping plate (34), wherein the pulley (35) is movably mounted on the inner surface of a slide groove (36), wherein the slide groove (36) is disposed at the lower end of the placement plate (37); The fixing component (3) is connected to the lifting component (2), and the lifting component (2) is arranged on the inner surface of the lifting frame (1). The lifting component (2) includes an electromagnet (29), and the electromagnet (29) is attracted to the steel plate (32). A level (6) is fixedly installed on the upper surface of the placement plate (37) on the right side. The level (6) is a plane level that emits annular plane rays with itself as the center. The rays emitted by the level (6) can be received by a laser receiver (515) in the milling cutter positioning and milling mechanism (5), and the laser receiver (515) can convert the received laser signal into an electrical signal and transmit it to the chassis (512).

2. The giant tank surface milling machine according to claim 1 is characterized in that: The lifting assembly (2) comprises a motor (21), the motor (21) being fixedly mounted on the right outer surface of the lifting frame (1), the motor (21) being fixedly connected to a rotating shaft (22) via an output shaft, the rotating shaft (22) being movably mounted on the inner surface of the lifting frame (1), and two active bevel gears (23) being fixedly mounted on the outer surfaces of both ends of the rotating shaft (22).

3. The giant tank surface milling machine according to claim 2 is characterized in that: The active bevel gear (23) is mounted with two linked bevel gears (24) through surface tooth meshing, the lower surface of the linked bevel gear (24) is fixedly connected with a ball screw (25), the ball screw (25) is mounted with a U-shaped slider (26) through surface thread meshing, the U-shaped slider (26) is movably mounted in a U-shaped slide groove (27), a connecting plate (28) is fixedly mounted on the outer surface of the U-shaped slide groove (27), and two electromagnets (29) are fixedly mounted on both sides of the outer surface of the connecting plate (28).

4. The giant tank surface milling machine according to claim 1 is characterized in that: The tank outer wall moving mechanism (4) comprises a servo motor (41), the servo motor (41) being fixedly mounted on the inner wall of the arc-shaped clamping plate (34) via a motor base, the servo motor (41) being fixedly linked to a driving shaft (42) via an output shaft, the driving shaft (42) being movably mounted on the inner surface of a driving shaft bracket (43), the driving shaft bracket (43) being fixedly mounted on the inner wall of the arc-shaped clamping plate (34), and a plurality of driving sprockets (44) being fixedly mounted on the outer wall of the driving shaft (42).

5. The giant tank surface milling machine according to claim 4 is characterized in that: The driving sprocket (44) is connected to a driven sprocket (46) via a first chain (45) transmission link, a plurality of the driven sprockets (46) are fixedly mounted on the inner surfaces of the limiting rods (47), the limiting rods (47) are movably mounted on the inner surface of the limiting rod bracket (48), and a roller (49) is fixedly mounted on the outer surface of the limiting rod (47).

6. The giant tank surface milling machine according to claim 5 is characterized in that: A linkage sprocket (410) is provided below the driven sprocket (46); the linkage sprocket (410) is connected to a plurality of driven sprockets (412) via a second chain (411); limiting rods (47) are fixedly mounted on the inner surfaces of the plurality of driven sprockets (412); the plurality of limiting rods (47) are movably mounted on the inner surfaces of a plurality of limiting rod brackets (48); and the plurality of limiting rod brackets (48) are fixedly mounted on the inner wall of the arc-shaped clamping plate (34).

7. The giant tank surface milling machine according to claim 1 is characterized by: The milling cutter positioning and milling mechanism (5) comprises a stepper motor (51), the stepper motor (51) being fixedly mounted on the outer surface of a side bracket (52), the side bracket (52) being fixedly mounted on the upper surface of a left placement plate (37), the stepper motor (51) being fixedly connected to a transmission shaft (53) via an output shaft, the transmission shaft (53) being movably mounted on the left inner surfaces of two side brackets (52), a driving sprocket (54) being fixedly mounted on the outer surface of the transmission shaft (53), the driving sprocket (54) being transmission-connected to a rotating sprocket (56) via a third chain (55), a rotating rod (57) being fixedly mounted on the inner surface of the rotating sprocket (56), and the rotating rod (57) being movably mounted on the right inner surfaces of the two side brackets (52).

8. The giant tank surface milling machine according to claim 7 is characterized in that: A driving gear (58) is fixedly mounted on the outer surfaces of the rotating rod (57) and the transmission shaft (53); a lifting tooth plate (59) is mounted on the driving gear (58) through surface engagement with teeth; limiting blocks (510) are arranged on both sides of the lifting tooth plate (59); and the limiting blocks (510) are movably mounted in sliding grooves arranged on the inner sides of the two side brackets (52).

9. The giant tank surface milling machine according to claim 8, characterized in that: A chassis (512) is fixedly mounted on the lower surface of the lifting tooth plate (59), a milling cutter motor (511) is fixedly mounted on the upper surface of the chassis (512), a milling cutter (513) is arranged on the lower surface of the chassis (512), and the milling cutter (513) is driven by the milling cutter motor (511), a slide plate (514) is arranged on the upper end of the lifting tooth plate (59), the slide plate (514) is movably mounted on the inner surface of a slide rail (516), the slide rail (516) is fixedly mounted on the upper surface of the placement plate (37), and a laser receiver (515) is fixedly mounted on the lower end of the slide plate (514).

Images