A cruise ship production line is used for large steel plate splicing station steel plate feeding gantry

Abstract

A kind of cruise ship production line is used for the steel plate feeding gantry of large steel plate splicing station, including gantry, steel plate grabbing device, steel plate positioning device, gantry moving device;Steel plate grabbing device includes multiple steel plate grabbing mechanism, each steel plate grabbing mechanism is liftable jaw grabbing mechanism;Steel plate positioning device includes multiple steel plate pressing mechanism, multiple first connecting shafts, steel plate transverse positioning oil cylinder, each steel plate pressing mechanism includes pressing plate turnover oil cylinder, pressing plate, second mounting plate, electromagnet piece, transverse slide rail, second connecting shaft, adjacent two steel plate pressing mechanism are connected by first connecting shaft, the piston end of steel plate transverse positioning oil cylinder is along transverse and is connected with adjacent steel plate pressing mechanism;Gantry moving device drives gantry to move.The present application can be applicable to the clamping, movement and positioning of the steel plate with maximum size 16m*5m and minimum thickness 4mm, reduces the deformation of steel plate.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of transportation devices, and particularly relates to a steel plate feeding gantry for a large steel plate splicing station of a cruise ship production line. BACKGROUND

[0002] In the process of building a giant cruise ship, large steel plates need to be spliced together, and the movement of the large steel plates is a big problem for the designers of the cruise ship production line. In the prior art, the function is usually achieved by a crane or a chain. Due to the particularity of cruise ship construction, many spliced steel plates are as thin as 4mm, and this traditional transportation method is prone to cause deformation of the whole or part of the steel plate, affecting the construction of the ship body. SUMMARY

[0003] The application provides a steel plate feeding gantry for a large steel plate splicing station of a cruise ship production line.

[0004] The purpose of the application can be achieved by the following technical scheme: a steel plate feeding gantry for a large steel plate splicing station of a cruise ship production line, comprising a gantry, a steel plate grabbing device, a steel plate positioning device, and a gantry moving device.

[0005] The steel plate grabbing device comprises a plurality of steel plate grabbing mechanisms, and the plurality of steel plate grabbing mechanisms are distributed and installed along the front side of the main beam of the gantry. Each steel plate grabbing mechanism is a liftable claw grabbing mechanism.

[0006] The steel plate positioning device comprises a plurality of steel plate pressing mechanisms, a plurality of first connecting shafts, and a steel plate transverse positioning oil cylinder. The plurality of steel plate pressing mechanisms are distributed and installed along the front side of the main beam of the gantry. Each steel plate pressing mechanism comprises a pressing plate overturning oil cylinder, a pressing plate, a second mounting plate, an electromagnet piece, a transverse sliding rail, and a second connecting shaft. The cylinder body of the pressing plate overturning oil cylinder is hinged to the front side of the main beam of the gantry, and the piston end of the pressing plate overturning oil cylinder is hinged downward to the pressing plate. The lower surface of the pressing plate is provided with a plurality of electromagnet pieces, and the rear side edges of the pressing plate are respectively hinged to two second mounting plates. The two second mounting plates are respectively installed on the sliding blocks of two transverse sliding rails and are connected by the second connecting shaft. The two transverse sliding rails are installed on the front side of the main beam of the gantry. Adjacent two second mounting plates of adjacent two steel plate pressing mechanisms are connected by a first connecting shaft. The steel plate transverse positioning oil cylinder is installed at one end of the front side of the main beam of the gantry, the piston end of the steel plate transverse positioning oil cylinder is arranged in the transverse direction, and is connected to the adjacent second mounting plate of the adjacent steel plate pressing mechanism.

[0007] The gantry moving device drives the gantry to move.

[0008] Further, each of the steel plate grabbing mechanisms comprises a claw lifting oil cylinder, a vertical slide rail, a first mounting plate, a claw, and a claw clamping oil cylinder, the claw lifting oil cylinder and the vertical slide rail are both mounted on the front side of the main beam of the portal frame, the piston end of the claw lifting oil cylinder is connected to the first mounting plate downward, the first mounting plate is mounted on the sliding block of the vertical slide rail, the claw and the claw clamping oil cylinder are both mounted on the first mounting plate, and the opening of the claw is arranged forward and is driven to realize the opening and closing action by the claw clamping oil cylinder.

[0009] Further, the claw of the steel plate grabbing mechanism comprises a hinge-connected upper claw body and lower claw body, the upper claw body is hinged to the downward arranged piston end of the claw clamping oil cylinder, and the lower claw body is mounted on the first mounting plate; the claw clamping oil cylinder drives the upper claw body to rotate relative to the lower claw body, so as to realize the opening and closing action of the claw.

[0010] Further, the portal frame moving device comprises a track, a wheel, a guide wheel, a servo motor, a gear, and a rack, the left and right sides of the portal frame are respectively arranged on the wheel boxes on the two tracks, the wheel boxes are provided with the wheel and the guide wheel matched with the track, the left and right sides of the portal frame are both provided with the servo motor, the output shaft of each servo motor is provided with the gear, and the two tracks are both provided with the rack matched with the gear.

[0011] Further, the top surface of the main beam of the portal frame is provided with a plurality of lifting lugs, the plurality of lifting lugs are arranged in a rectangular shape, and the center of the rectangular shape falls on the gravity center position of the portal frame.

[0012] Further, the power supply device with a drag chain and the electric control cabinet mounted on the portal frame are further included.

[0013] Compared with the prior art, the present application has the following beneficial effects:

[0014] 1. The large steel plate is clamped firmly by using the hydraulic clamping technology, and the steel plate is moved on the sheet wheel platform by moving the portal frame.

[0015] 2. The steel plate is attracted by the electromagnet sheet on the pressing plate, the steel plate is driven to move transversely by the transverse positioning oil cylinder, and the transverse position of the steel plate is adjusted.

[0016] 3. The portal frame has a span greater than 16 m, the stroke of the portal frame is about 11 m, and the portal frame can be used for clamping, moving and positioning the steel plate with the maximum size of 16 m*5 m and the minimum thickness of 4 mm. BRIEF DESCRIPTION OF DRAWINGS

[0017] Figure 1 It is a front view of the left half part of the present application.

[0018] Figure 2 It is a front view of the right half part of the present application.

[0019] Figure 3Figure 2 is a top view of the right half of the present application.

[0020] Figure 4 Figure 3 is a side view of the present application.

[0021] The component numbers in the figure are as follows:

[0022] 1 gantry

[0023] 2 claw lifting oil cylinder

[0024] 3 vertical slide rail

[0025] 4 first mounting plate

[0026] 5 upper claw body

[0027] 6 lower claw body

[0028] 7 claw clamping oil cylinder

[0029] 8 press plate overturning oil cylinder

[0030] 9 press plate

[0031] 10 second mounting plate

[0032] 11 electromagnet piece

[0033] 12 transverse slide rail

[0034] 13 second connecting shaft

[0035] 14 first connecting shaft

[0036] 15 steel plate transverse positioning oil cylinder

[0037] 16 track

[0038] 17 wheel box

[0039] 18 guide wheel

[0040] 19 servo motor

[0041] 20 gear

[0042] 21 rack

[0043] 22 lifting lug

[0044] 23 power supply device

[0045] 24 electric control cabinet

[0046] 25 infrared sensor

[0047] 26 induction pile

[0048] 27 steel plate DETAILED DESCRIPTION

[0049] The following detailed description of the application will be made with reference to the accompanying drawings, in order to make those skilled in the art more clearly understand how to practice the application. Although the application is described in conjunction with its preferred specific embodiments, these embodiments are merely illustrative, not limiting the scope of the application.

[0050] Referring to Figures 1 to 4 A cruise ship production line steel plate feeding gantry for large steel plate splicing station, comprising a gantry 1, a steel plate grabbing device, a steel plate positioning device, a gantry moving device.

[0051] Referring to Figures 1 to 3 The steel plate grabbing device comprises a plurality of steel plate grabbing mechanisms, which are installed along the front side of the main beam of the gantry 1. In this embodiment, four steel plate grabbing mechanisms are provided, which are reasonably distributed according to different plate lengths of 5-16 meters, to ensure that steel plates of various sizes are simultaneously grabbed by at least two steel plate grabbing mechanisms.

[0052] Each steel plate grabbing mechanism comprises a jaw lifting cylinder 2, a vertical slide rail 3, a first mounting plate 4, a jaw, and a jaw clamping cylinder 7. The jaw lifting cylinder 2 and the vertical slide rail 3 are both installed on the front side of the main beam of the gantry 1, with the jaw lifting cylinder 2 being arranged upward and its piston end being connected downward to the first mounting plate 4, which is installed on the sliding block of the vertical slide rail 3. During operation, the jaw lifting cylinder 2 drives the first mounting plate 4 to ascend and descend along the vertical slide rail 3. Figure 4 The opening of the jaw is arranged forward, and the jaw comprises a hinge-connected upper jaw body 5 and a lower jaw body 7. The upper jaw body 5 is hingedly connected to the downwardly arranged piston end of the jaw clamping cylinder 7, and the jaw clamping cylinder 7 and the lower jaw body 7 are both installed on the first mounting plate 4. During operation, the jaw clamping cylinder 7 drives the upper jaw body 5 to rotate relative to the lower jaw body 7, thereby realizing the opening and closing action of the jaw.

[0053] Referring to Figures 1 to 3 The steel plate positioning device comprises a plurality of steel plate pressing mechanisms, a plurality of first connecting shafts 14, and a steel plate transverse positioning cylinder 15. The plurality of steel plate pressing mechanisms are installed along the front side of the main beam of the gantry 1, and adjacent two steel plate pressing mechanisms are connected by a first connecting shaft 14. The steel plate transverse positioning cylinder 15 is installed at one end of the front side of the main beam of the gantry 1. In this embodiment, three steel plate pressing mechanisms are provided, with one steel plate pressing mechanism being arranged between each adjacent two steel plate grabbing mechanisms.

[0054] Each of the steel plate pressing mechanism comprises a pressing plate overturning oil cylinder 8, a pressing plate 9, a second mounting plate 10, an electromagnet piece 11, a transverse slide rail 12, and a second connecting shaft 13. The cylinder body of the pressing plate overturning oil cylinder 8 is hinged to the front side of the main beam of the portal frame 1 and is arranged upward, the piston end of the pressing plate overturning oil cylinder 8 is hinged downward to the pressing plate 9, the lower surface of the pressing plate 9 is provided with a plurality of electromagnet pieces 11, the rear side edges of the pressing plate 9 are respectively hinged to two second mounting plates 10, the two second mounting plates 10 are respectively mounted on the sliding blocks of two transverse slide rails 12 and are connected by a second connecting shaft 13, and the two transverse slide rails 12 are mounted on the front side of the main beam of the portal frame 1. In operation, the pressing plate overturning oil cylinder 8 drives the pressing plate 9 to overturn, and the electromagnet pieces 11 attract and release the steel plate by being turned on and off.

[0055] The two second mounting plates 10 of the two adjacent steel plate pressing mechanisms are connected by a first connecting shaft 14, the piston end of the steel plate transverse positioning oil cylinder 15 is arranged in the transverse direction and is connected to the second mounting plates 10 of the adjacent steel plate pressing mechanisms. In operation, the steel plate transverse positioning oil cylinder 15 drives all the steel plate pressing mechanisms to move along the transverse slide rail 12 through the second mounting plates 10 connected thereto, so as to realize the transverse fine positioning of the steel plate.

[0056] Referring to Figure 4 , the portal frame moving device comprises a track 16, a wheel, a guide wheel 18, a servo motor 19, a gear 20, and a rack 21. The left and right sides of the portal frame 1 are respectively arranged on the wheel boxes 17 on the two tracks 16, the wheel boxes 17 are provided with the wheels matched with the tracks 16, the outer sides of the wheel boxes 17 are provided with the guide wheels 18 matched with the tracks 16, the guide wheels 18 are used to prevent the lateral shaking of the portal frame 1 when walking on the tracks 16 and the wheels sliding out of the tracks 16 in the worst case. The left and right sides of the portal frame 1 are respectively provided with the servo motors 19, the output shafts of the servo motors 19 are respectively provided with the gears 20, and the two tracks 16 are respectively provided with the racks 21 matched with the gears. In operation, the portal frame 1 is movable along the tracks 16 through the wheels in the wheel boxes 17 and is accurately movable through the meshing transmission of the gears 20 and the racks 21 driven by the servo motors 19.

[0057] In addition, referring to Figures 1 to 3 , the top surface of the main beam of the portal frame 1 is provided with four lifting lugs 22 for mounting and hoisting the portal frame 1, the four lifting lugs 22 are arranged in a rectangle and the center of the rectangle falls on the gravity center of the portal frame 1.

[0058] Referring to Figure 2, the whole steel plate feeding gantry is powered by a power supply device 23 with a drag chain, an electric control cabinet 24 is installed on the main beam of the gantry 1, the electric control cabinet 24 is responsible for controlling the electric valves of the claw lifting cylinder 2, the claw clamping cylinder 7, the pressing plate overturning cylinder 8 and the steel plate transverse positioning cylinder 15, the electromagnet 11, the servo motor 19, and the electric control cabinet 24 is also responsible for communication with the central control system.

[0059] The steel plate feeding gantry automatically completes the tasks of steel plate grabbing, positioning and moving to the designated position according to the instructions of the central controller of the central control system, and the process is divided into three steps, which are described below.

[0060] The first step is to grab the steel plate 27. Specifically, after the steel plate feeding gantry receives the task instruction, the servo motor 19 of the gantry moving device works to drive the gantry 1 to move along the track 16 to the feeding area. The claws of each steel plate grabbing mechanism of the steel plate grabbing device move up and down along the vertical slide rail 3 under the action of the lifting cylinder, and after ensuring that the lower claw body 7 of the claw is located below the edge of the steel plate 27, the claw clamping cylinder 7 pulls up the upper claw body 5 to fully open it. Then, the gantry 1 continues to move a fixed distance towards the steel plate 27, so that the clamping surface of the claw completely covers the steel plate 27, and the lifting cylinder drives the claw to move upwards, so that the lower claw body 7 is tightly attached to the lower surface of the steel plate 27. Then, the claw clamping cylinder pushes the upper claw body 5 downward, and the upper claw body 5 clamps the steel plate 27 with the cooperation of the lower claw body 7, completing the grabbing of the steel plate 27. The purpose of grabbing the steel plate 27 by the claw is to ensure that the steel plate 27 does not move when the pressing plate 9 is pressed and adsorbed in the next step.

[0061] Second step, Y direction positioning of steel plate 27. The pressing plate of each steel plate pressing mechanism of the steel plate positioning device is turned down by the action of the pressing plate turning cylinder 8, and is pressed on the steel plate 27, while the electromagnet piece 11 is electrified to attract the steel plate 27. After the steel plate 27 is attracted, the jaw body 5 of each steel plate grabbing mechanism of the steel plate grabbing device is pulled up by the action of the jaw clamping cylinder 7, and the steel plate 27 is released. Since the feeding area is paved with a rolling ball platform, i.e. a platform paved with rolling balls that can rotate in all directions at a fixed distance, the steel plate 27 on the platform only needs to overcome the rolling friction resistance of the rolling balls to move easily in the X and Y axial directions. The steel plate transverse positioning cylinder 15 is driven to move along the transverse sliding rail 12 by the second mounting plate 10 connected thereto, thereby driving the steel plate 27 to move in the Y direction, and the pressing plate turning cylinder 8 is turned with the movement of the pressing plate 9. The movement range of the steel plate transverse positioning cylinder 15 is ±150 mm, and since the steel plate 27 has been preliminarily positioned in the Y axial direction when it is fed, ±150 mm is sufficient for the precise positioning of the steel plate 27 in the transverse direction. The specific position of the steel plate 27, i.e. the position where the edges of the steel plate 27 to be welded are aligned, is set in advance when the overall design of the assembly line is made, and is also called the reference line. When the steel plate 27 moves to the reference line, the inductive proximity switch arranged at the reference line position detects the edge of the steel plate 27, and gives a signal in real time, and stops the driving of the pressing plate 9 in the Y axial direction. The Y direction positioning of the steel plate 27 is completed, the jaw body 5 of each steel plate grabbing mechanism is pushed downward by the jaw clamping cylinder, and the steel plate 27 is clamped again, the electromagnet piece 11 of each steel plate pressing mechanism is de-energized to release the steel plate 27, and the pressing plate turning cylinder 8 drives the pressing plate 9 to turn upward and reset, preparing for the next step of moving the steel plate 27 in the X direction.

[0062] Third step, X direction movement of the steel plate 27. After the gantry 1 finally pulls the steel plate 27 to the specified position, the jaw of each steel plate grabbing mechanism of the steel plate grabbing device is released, and then the gantry 1 moves back to the initial position. In order to ensure that the gantry 1 stops at the initial position, see Figure 2 , an infrared sensor 25 is installed at one end of the bottom surface of the main beam of the gantry 1, and a sensing pile 26 is arranged at the initial position. When the infrared sensor 25 senses the sensing pile 26, the infrared sensor 25 gives a signal to the electric control cabinet 24, and the electric control cabinet 24 controls the servo motor 19 to stop working, and the gantry 1 stops moving. Thus, one working process of the steel plate feeding gantry is completed.

[0063] It should be noted that the present application can have various alternative and modified embodiments, and is not limited to the specific examples of the above-described embodiments. The above-described examples are only illustrative of the present application, and are not limiting. In general, the scope of protection of the present application should include those alternatives or substitutions and modifications that are obvious to those skilled in the art.

Claims

1. A steel plate feeding gantry for a large steel plate splicing station of a cruise ship production line, characterized in that, The steel plate feeding gantry comprises a gantry, a steel plate grabbing device, a steel plate positioning device, and a gantry moving device. The steel plate grabbing device comprises a plurality of steel plate grabbing mechanisms, which are arranged and installed along the front side of the main beam of the gantry, and each steel plate grabbing mechanism is a liftable claw grabbing mechanism. The steel plate positioning device comprises a plurality of steel plate pressing mechanisms, a plurality of first connecting shafts, and a steel plate transverse positioning oil cylinder. The gantry moving device drives the gantry to move.

2. The cruise ship production line steel plate feeding gantry for a large steel plate splicing station according to claim 1, characterized in that, Each steel plate grabbing mechanism comprises a claw lifting oil cylinder, a vertical slide rail, a first mounting plate, a claw, and a claw clamping oil cylinder.

3. The cruise ship production line steel plate feeding gantry for a large steel plate splicing station according to claim 2, characterized in that, The claw of the steel plate grabbing mechanism comprises a hinge-connected upper claw body and a lower claw body.

4. The cruise ship production line steel plate feeding gantry for large steel plate splicing station according to claim 1, characterized in that, The gantry moving device comprises a track, a wheel, a guide wheel, a servo motor, a gear, and a rack.

5. The cruise ship production line steel plate feeding gantry for large steel plate splicing station according to claim 1, characterized in that, The top surface of the main beam of the gantry is provided with a plurality of lifting lugs.

6. The steel plate feeding gantry for the large steel plate splicing station of the cruise ship production line according to any one of claims 1-5, characterized in that it further comprises a power supply device with a drag chain and an electric control cabinet installed on the gantry.

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