An assembly device and an assembly method for structural parts of port machinery products

Abstract

The present invention discloses an assembly device and an assembly method for structural parts for port machinery products. The assembly device uses end clamping mechanisms used in pairs to longitudinally position, tighten, and vertically tighten the assembly structural parts; uses middle clamping mechanisms used in pairs to longitudinally and vertically tighten the assembly structural parts; uses a transverse tightening mechanism on a base and a first backrest to cooperate to transversely position and tighten the assembly structural parts; and uses a driving mechanism to drive the base to rotate to adjust the posture of the assembly structural parts. The present invention can perform multi-directional positioning and tightening of the assembly structural parts. After rotating the base, the assembly structural parts can always be welded at the top. The present invention can improve production efficiency, ensure molding quality, and save manufacturing costs.

Description

Technical Field

[0001] The invention relates to a structural component assembly, and in particular to an assembly device and an assembly method of structural components for port machinery products. Background Art

[0002] Among port machinery products, there is a category of products that belong to mobile port machinery, among which reach stacker cranes are the most representative. The reach stacker crane mainly operates containers and can grab containers and transfer them.

[0003] Figure 1 and Figure 2 The structural parts shown are the direct load-bearing parts for the front-lift crane to grab the container. The welding accuracy requirements are relatively high (the gap between the assemblies must be ≤1mm). At the same time, in order to consider the manufacturing cost, the high-precision holes and surfaces of the remaining parts are made by boring-free and milling-free processes, and the welding of the remaining parts is based on this structural part, and there is no subsequent mechanical processing process.

[0004] The traditional assembly adopts the method of manual marking and manual dot splicing by multiple people, which has problems such as large cumulative errors, low precision of structural assembly, poor forming quality, poor consistency, high consumption of manpower and material resources, and waste of manufacturing processes. Even well-formed workpieces need to be machined after welding to ensure the accuracy of key dimensions, resulting in high manufacturing costs, high scrap rates, and high labor intensity for workers.

[0005] In view of this, it is necessary to provide an assembly device and an assembly method to solve the assembly difficulties, improve the welding accuracy and efficiency of structural parts, and save manufacturing costs, taking into account the characteristics of large size, heavy weight, and complex structure of mobile port machinery parts. Summary of the invention

[0006] Purpose of the invention: The purpose of the present invention is to provide an assembly device and an assembly method for structural parts for port machinery products, so as to improve production efficiency, ensure molding quality and save manufacturing costs.

[0007] Technical solution: The first aspect of the present invention provides an assembly device of structural parts for port machinery products, comprising:

[0008] A base is rotatably arranged between the head and the tail bracket, and a first backrest is arranged on the base;

[0009] End clamping mechanisms used in pairs are used to longitudinally position, tighten, and vertically tighten the assembly structure;

[0010] The middle clamping mechanism used in pairs is used to tighten the structural parts of the assembly longitudinally and vertically;

[0011] A transverse tightening mechanism, arranged on the base, for cooperating with the first backrest to perform transverse positioning and tightening of the assembly structure; and,

[0012] The driving mechanism is used to drive the base to rotate so as to adjust the posture of the assembly structure.

[0013] Furthermore, each end clamping mechanism and the middle clamping mechanism presses the sealing plate of the assembly structure through the vertical pressing assembly at the top.

[0014] Furthermore, the vertical tightening assembly includes a rotating cylinder and a threaded sleeve connected by a cantilever, wherein the rotating cylinder is rotatably connected to a rotating shaft at the top of the clamping mechanism, and a tightening screw for pressing down the sealing plate is screwed into the threaded sleeve.

[0015] Furthermore, a butterfly nut is installed on the rotating cylinder to fix the rotating cylinder.

[0016] Furthermore, a retractable clamping assembly is provided on the side of the end clamping mechanism, wherein the retractable clamping assembly on the front end clamping mechanism is used for quick longitudinal positioning of the front bending plate, and the retractable clamping assembly on the rear end clamping mechanism is used for quick longitudinal positioning of the rear bending plate.

[0017] Furthermore, the retractable clamping assembly includes a mounting seat, a fastening screw and a pressure plate. A guide bolt is screwed onto the outer side of the mounting seat. The hexagonal head of the guide bolt is tightly fitted with a pair of guide plates on the pressure plate, so that the pressure plate can move longitudinally. A long waist-shaped hole is provided on the pressure plate, and the fastening screw passes through the long waist-shaped hole and is threadedly connected to the mounting seat. A positioning reference block for positioning the bending plate is provided at the head end of the pressure plate, and the positioning reference block slightly protrudes from the bottom plane of the pressure plate.

[0018] Furthermore, the end clamping mechanism and the middle clamping mechanism located on the front side are provided with tightening screws for longitudinally tightening the assembly structure; the end clamping mechanism and the middle clamping mechanism located on the rear side are provided with a backrest seat against the rear bending plate.

[0019] Furthermore, the above-mentioned assembly device also includes a locking pin assembly and a connecting disk assembly. The connecting disk assembly is used to connect the driving mechanism and the base. The locking pin of the locking pin assembly is inserted into the locking hole of the locking disk of the connecting disk assembly to achieve base angle locking.

[0020] A second aspect of the present invention provides a method for assembling a structural member for a port machinery product, comprising:

[0021] (1) All vertical tightening components are opened outward, the tightening screws for longitudinal tightening on the end clamping mechanism and the middle clamping mechanism on the front side are rotated back to the open state, the pressing plates of all retractable clamping components are slid outward to the open state, the transverse tightening mechanism is adjusted to the open state, the rear bending plate is slowly lowered onto the base after hoisting, and the transverse tightening mechanism is adjusted so that the rear bending plate abuts against the first backrest seat;

[0022] (2) Rotate the base backward 90°, and the rear bending plate is close to the backrest seat on the end clamping mechanism and the middle clamping mechanism at the rear side; extend the pressing plate of the retractable clamping assembly of the end clamping mechanism at the rear side, press the upper end of the rear bending plate, draw a line on the rear bending plate, and use a welding gun to sequentially assemble the horizontal plate, vertical plate, and rib plate of the assembly structure;

[0023] (3) Rotate the base to restore it to its original position, hoist the front bending plate to the required assembly position, and use the transverse jacking mechanism to make the front bending plate abut against the first backrest; use the jacking screws on the end clamping mechanism and the middle clamping mechanism located on the front side to jack the front bending plate, and extend the pressure plate of the retractable clamping assembly of the end clamping mechanism located on the front side to clamp the upper end of the front bending plate, and then use an electric welding machine to rivet and weld the horizontal plate, vertical plate, rib plate, and front bending plate of the assembly structure to secure it;

[0024] (4) Make overall adjustments to ensure the tightness of the butt welds and check the dimensions and positions.

[0025] (5) Lift the sealing plate to the required assembly position, rotate all vertical tightening components inward, and use the tightening screws on the vertical tightening components to tighten the sealing plate downward. After ensuring the various dimensional data of the sealing plate, use an electric welder to intermittently assemble the points;

[0026] (6) Rotate the base backward 90° and use an electric welder to intermittently weld the workpiece to ensure that the riveting is firm;

[0027] (7) After restoring the base to its original position, rotate it forward 90° and use a welding gun to sew the welds of the workpiece to ensure that the riveting is firm. After the welding is completed, lift out the assembled structure.

[0028] Furthermore, before the base is rotated and adjusted, the locking pin is pulled out of the locking hole; after the base is rotated into place, the locking pin is inserted into the locking hole to lock the angle of the base.

[0029] Beneficial effects: Compared with the prior art, the present invention has the following significant advantages:

[0030] (1) The operation is convenient and can be completed by one person, which can significantly improve production efficiency and reduce the labor intensity of workers;

[0031] (2) The assembly structure can be positioned and fixed in multiple directions with high positioning accuracy. The assembly process does not need to consider deformation issues too much, and the efficiency is high;

[0032] (3) It has a unified positioning reference, and the finished products have good consistency and high quality.

[0033] The present invention can effectively avoid the problems of low assembly precision, poor molding quality, high consumption of manpower and material resources, waste of manufacturing process, high cost, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the technical solution of the embodiment of the present invention, the following briefly introduces the drawings required for use in the embodiment of the present invention. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0035] Figure 1 and Figure 2 It is a schematic diagram of the structure of the assembly structure;

[0036] Figure 3 is a schematic diagram of the structure of the assembly device provided in the embodiment of the present application;

[0037] Figure 4 It is a schematic diagram of the structure of the base;

[0038] Figure 5 It is a structural schematic diagram of the transverse tightening mechanism;

[0039] Figure 6 is a structural schematic diagram of the first end clamping mechanism;

[0040] Figure 7 is a schematic structural diagram of a first retractable clamping assembly;

[0041] Figure 8 is a structural schematic diagram of a first vertical tightening assembly;

[0042] Fig. 9 is a structural schematic diagram of the second end clamping mechanism;

[0043] Fig.10 is a structural schematic diagram of the first middle clamping mechanism;

[0044] Fig.11 is a structural schematic diagram of the second middle clamping mechanism;

[0045] Fig.12 is a schematic structural diagram of the third end clamping mechanism;

[0046] Fig.13 is a structural schematic diagram of the fourth end clamping mechanism;

[0047] Fig.14 It is a schematic diagram of the structure of the tail bracket;

[0048] Fig.15 is a schematic diagram of the structure of the head bracket;

[0049] Fig.16 It is a structural schematic diagram of the driving mechanism;

[0050] Fig.17 It is a structural diagram of the transmission and locking mechanism;

[0051] Fig.18 It is a structural schematic diagram of the driving articulated sleeve;

[0052] Fig.19 It is an exploded view of the head support and the mechanisms thereon;

[0053] Figure 20 to Figure 22 It is a schematic diagram of the assembly process of the group device;

[0054] Figures 23 to 31 is a schematic diagram of the process of assembling structural parts using an assembly device, wherein Fig.24 yes Fig.23 A magnified view of the local area A, Fig.26 yes Fig.25 A magnified view of part B. Fig.28 yes Fig. 27 A partial enlarged view of C;

[0055] Reference numerals:

[0056] 1-base, 1.1-base body, 1.2-contact seat, 1.3-first backing seat, 1.4-pin shaft connection seat;

[0057] 2-Lifting rings;

[0058] 3-group structure, 3.1-rear bending plate, 3.2-transverse plate, 3.3-vertical plate, 3.4-rib plate, 3.5-front bending plate, 3.6-sealing plate;

[0059] 4- transverse tightening mechanism, 4.1- bottom plate, 4.2- first tightening screw;

[0060] 5-first end clamping mechanism, 5.1-first base, 5.2-first retractable clamping assembly, 5.2.1-mounting seat, 5.2.2-fastening screw, 5.2.3-pressing plate, 5.3-second jacking screw, 5.4-first vertical jacking assembly, 5.4.1-rotating cylinder, 5.4.2-third jacking screw;

[0061] 6-second end clamping mechanism, 6.1-second base, 6.2-second telescopic clamping assembly, 6.3-second vertical jacking assembly, 6.4-second backrest;

[0062] 7-first middle clamping mechanism, 7.1-third base, 7.2-fourth jacking screw, 7.3-third vertical jacking assembly;

[0063] 8-second middle clamping mechanism, 8.1-fourth base, 8.2-third backrest, 8.3-fourth vertical tightening assembly;

[0064] 9-third end clamping mechanism, 9.1-fifth base, 9.2-third telescopic clamping assembly, 9.3-fifth jacking screw, 9.4-fifth vertical jacking assembly;

[0065] 10- fourth end clamping mechanism, 10.1- sixth base, 10.2- fourth telescopic clamping assembly, 10.3- sixth vertical jacking assembly, 10.4- fourth backrest seat;

[0066] 11-tail bracket, 11.1-first frame, 11.2-bearing seat, 11.3-base connection assembly;

[0067] 12-head support, 12.1-second frame, 12.2-fixed seat;

[0068] 13-driving mechanism, 13.1-motor seat, 13.2-driving motor, 13.3-first keyway slider;

[0069] 14-Control cabinet;

[0070] 15-transmission and locking mechanism, 15.1-T-type base, 15.2-locking latch assembly, 15.3-coupling plate assembly, 15.4-second keyway slider;

[0071] 16-Drive articulated sleeve. DETAILED DESCRIPTION

[0072] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative work are within the protection scope of the present invention.

[0073] like Figure 1 and Figure 2 The assembly structure 3 shown includes a rear bending plate 3.1, a horizontal plate 3.2, a vertical plate 3.3, a rib plate 3.4, a front bending plate 3.5 and a sealing plate 3.6, wherein the vertical plate 3.3 and the rib plate 3.4 are two pieces each. For different manufacturers, the assembly structure 3 is similar in structure and can be regarded as a standard part.

[0074] Figure 3 The structure diagram of the assembly device provided in the embodiment of the present application is shown, and the assembly device comprises a base 1, and the two ends of the base 1 are rotatably mounted on the tail bracket 11 and the head bracket 12 respectively. Figure 4The base 1 is provided with a transverse clamping mechanism 4 and a first backing seat 1.3, and the transverse clamping mechanism 4 cooperates with the first backing seat 1.3 to realize the transverse positioning and fastening of the assembly structure 3. The front and rear sides of the base 1 are provided with a plurality of clamping mechanisms used in pairs, wherein the clamping mechanisms located at both ends of the assembly structure 3 are called end clamping mechanisms, which are used to longitudinally position, fasten, and vertically fasten the assembly structure 3; the clamping mechanism located in the middle of the assembly structure 3 is called the middle clamping mechanism, which is used to longitudinally and vertically fasten the assembly structure 3.

[0075] In this embodiment, there are two pairs of end clamping mechanisms and two pairs of middle clamping mechanisms.

[0076] On the basis of the horizontal, longitudinal and vertical clamping of the assembly structure 3, when the electric welder is used for spot welding, it is necessary to ensure that the welding station is at the top. For this reason, a driving mechanism 13 and a transmission and locking mechanism 15 are set on the head bracket 12, and the driving mechanism 13 is used to drive the base 1 to rotate so as to adjust the posture of the assembly structure 3; the locking mechanism is used to lock the angle of the base 1 when the base 1 is in a horizontal state or rotated at a certain angle, such as 90° forward or 90° backward. After the locking mechanism is unlocked, the angle of the base 1 can be adjusted.

[0077] The structure of the assembly device is described in detail below.

[0078] like Figure 4 As shown, the base 1 includes a base body 1.1, which is a box-type structure and is welded from square steel pipes and plates. A number of functional mounting holes are provided on the surface of the base body 1.1 as required. A number of contact seats 1.2 are provided in the middle of the surface of the base body 1.1, and the contact seats 1.2 are fixed to the base body 1.1 by hexagon socket bolts. It is necessary to ensure that the top heights of all contact seats 1.2 are consistent in order to support the workpiece and buffer the impact force of the workpiece falling. A first backrest seat 1.3 is fixed by bolts at the right end of the surface of the base body 1.1. The first backrest seat 1.3 is used to limit the lateral (X-direction) movement of the workpiece and serves as the lateral (X-direction) positioning reference of the entire device. A pin connection seat 1.4 is provided at each end of the base body 1.1, and the coaxiality of the pin connection holes of the two pin connection seats 1.4 is ≤0.01mm.

[0079] Figure 5 The figure shows the structure of the transverse tightening mechanism 4, which includes a bottom plate 4.1 fixed to the base 1 by bolts. A vertical plate is vertically fixed to the bottom plate 4.1, and two first tightening screws 4.2 are screwed to the vertical plate. The transverse tightening mechanism 4 is used to apply a transverse (X-direction) tightening force to the workpiece, thereby cooperating with the first backrest 1.3 to achieve transverse positioning and tightening of the workpiece.

[0080] The two pairs of end clamping mechanisms are respectively a first end clamping mechanism 5 and a second end clamping mechanism 6, a third end clamping mechanism 9 and a fourth end clamping mechanism 10, wherein the clamping mechanisms 5 and 6 are located at the left end, the clamping mechanisms 9 and 10 are located at the right end, the clamping mechanisms 5 and 9 are located at the front side, and the clamping mechanisms 6 and 10 are located at the rear side, as shown in FIG. Figure 3 shown.

[0081] Figure 6 The figure shows a schematic diagram of the structure of the first end clamping mechanism 5, which includes a first base 5.1, which is fixed to the base 1 by bolts. A first retractable clamping assembly 5.2 is provided on the side of the first base 5.1, which is used to quickly position the front bending plate 3.5 in the Y direction. A first vertical clamping assembly 5.4 is provided on the top of the first base 5.1, which is used to press the sealing plate 3.6 downward in the Z direction. Two second clamping screws 5.3 are also screwed on the first base 5.1, which are used to clamp the assembly structure 3 in the Y direction.

[0082] like Figure 7 As shown, the first telescopic clamping assembly 5.2 includes a mounting seat 5.2.1, a fastening screw 5.2.2 and a pressing plate 5.2.3, wherein the mounting seat 5.2.1 is welded and fixed on the first base 5.1, and a guide bolt is screwed on the outer side of the mounting seat 5.2.1, and the hexagonal head of the guide bolt is tightly matched with a pair of guide plates on the pressing plate 5.2.3, so that the pressing plate 5.2.3 can move along the Y direction. A long waist-shaped hole is provided on the pressing plate 5.2.3, and the fastening screw 5.2.2 passes through the long waist-shaped hole and is threadedly connected to the mounting seat 5.2.1. A positioning reference block is provided at the head end of the pressing plate 5.2.3, and the positioning reference block slightly protrudes from the bottom plane of the pressing plate 5.2.3. A hand ring is provided at the tail end of the pressing plate 5.2.3 to pull the pressing plate 5.2.3. When in use, the positioning reference block is clamped on the front bending plate 3.5, and then the fastening screw 5.2.2 is rotated to fix the pressing plate 5.2.3, so as to realize the fast positioning of the front bending plate 3.5 in the Y direction. In addition, the positioning reference block also has the function of vertically (Z direction) pressing the sealing plate 3.6.

[0083] like Figure 8 As shown, the first vertical tightening assembly 5.4 includes a rotating cylinder 5.4.1 and a threaded sleeve connected by a cantilever, wherein the rotating cylinder 5.4.1 is rotatably connected to the rotating shaft at the top of the first base 5.1, and a butterfly nut is installed on the rotating cylinder 5.4.1 to fix the rotating cylinder 5.4.1, and lubricating oil can also be added here. A third tightening screw 5.4.2 is screwed into the threaded sleeve to press the sealing plate 3.6 downward in Z direction.

[0084] Fig. 9The figure shows a schematic diagram of the structure of the second end clamping mechanism 6, which includes a second base 6.1, which is fixed to the base 1 by bolts. A second retractable clamping assembly 6.2 is provided on the side of the second base 6.1, which is used to quickly position the rear bending plate 3.1 in the Y direction. The second retractable clamping assembly 6.2 has the same structural form as the first retractable clamping assembly 5.2, which will not be described in detail here. A second vertical clamping assembly 6.3 is provided on the top of the second base 6.1, which is used to press the sealing plate 3.6 downward in the Z direction. The second vertical clamping assembly 6.3 has the same structural form as the first vertical clamping assembly 5.4, which will not be described in detail here. Two second backrest seats 6.4 are provided on the side of the second base 6.1 opposite to the first base 5.1, which can play a buffering role and prevent impact when the rear bending plate 3.1 is dropped.

[0085] By screwing the second tightening screw 5 . 3 on the first end clamping mechanism 5 , the first end clamping mechanism 5 can cooperate with the second end clamping mechanism 6 to tighten the workpiece longitudinally.

[0086] Fig.12 The third end clamping mechanism 9 is shown as a schematic diagram of the structure. The third end clamping mechanism 9 includes a fifth base 9.1, which is fixed to the base 1 by bolts. A third telescopic pressing assembly 9.2 is provided on the side of the fifth base 9.1, a fifth vertical jacking assembly 9.4 is provided on the top of the fifth base 9.1, and two fifth jacking screws 9.3 are also screwed on the fifth base 9.1. The third end clamping mechanism 9 has the same structure and function as the first end clamping mechanism 5, so it will not be described in detail.

[0087] Fig.13 The fourth end clamping mechanism 10 is shown as a schematic structural diagram. The fourth end clamping mechanism 10 includes a sixth base 10.1, which is fixed to the base 1 by bolts. A fourth telescopic pressing assembly 10.2 is provided on the side of the sixth base 10.1, a sixth vertical pressing assembly 10.3 is provided on the top of the sixth base 10.1, and two fourth backrest seats 10.4 are provided on the side of the sixth base 10.1 opposite to the fifth base 9.1. The fourth end clamping mechanism 10 has the same structural form and function as the second end clamping mechanism 6, so it will not be described in detail.

[0088] By screwing the fifth tightening screw 9 . 3 on the third end clamping mechanism 9 , the third end clamping mechanism 9 can cooperate with the fourth end clamping mechanism 10 to longitudinally tighten the workpiece.

[0089] The two pairs of middle clamping mechanisms mentioned above are two pairs of first middle clamping mechanisms 7 and second middle clamping mechanisms 8, wherein the first middle clamping mechanisms 7 are located at the front side, and the second middle clamping mechanisms 8 are located at the rear side.

[0090] Fig.10The figure shows the structure of the first middle clamping mechanism 7, which includes a third base 7.1, which is fixed to the base 1 by bolts. A third vertical clamping assembly 7.3 is provided on the top of the third base 7.1, which is used to press the sealing plate 3.6 downward in the Z direction. The third vertical clamping assembly 7.3 has the same structure as the first vertical clamping assembly 5.4, and will not be described in detail here. Two fourth clamping screws 7.2 are also screwed on the third base 7.1, which are used to clamp the rear bending plate 3.1 and the front bending plate 3.5 in the Y direction.

[0091] Fig.11 The figure shows a schematic diagram of the structure of the second middle clamping mechanism 8, which includes a fourth base 8.1, which is fixed to the base 1 by bolts. A fourth vertical clamping assembly 8.3 is provided on the top of the fourth base 8.1, which is used to press the sealing plate 3.6 downward in the Z direction. The fourth vertical clamping assembly 8.3 has the same structural form as the first vertical clamping assembly 5.4, which will not be described in detail here. Two third backrest seats 8.2 are provided on the side of the fourth base 8.1 opposite to the third base 7.1, which can play a buffering role and prevent impact when the rear bending plate 3.1 is dropped.

[0092] By screwing the fourth tightening screw 7 . 2 on the first middle clamping mechanism 7 , the first middle clamping mechanism 7 can cooperate with the second middle clamping mechanism 8 to tighten the workpiece longitudinally.

[0093] In order to protect the workpiece, the head end of each of the above-mentioned tightening screws that contacts the workpiece is provided with a contact pad.

[0094] Fig.14 The structure diagram of the tail bracket 11 is shown. The main body of the tail bracket 11 is a first frame 11.1 welded by rib plates. The first frame 11.1 is in the form of a tripod and is fixed to the ground by anchor bolts. A bearing seat 11.2 is fixed to the top of the first frame 11.1 by bolts. A base connection assembly 11.3 is provided in the bearing seat 11.2. The base connection assembly 11.3 includes a bearing, a connecting plate is provided at the end of the bearing, and a pin is passed through the center of the bearing. The bearing is rotatably arranged in the bearing seat 11.2, and the pin is inserted into the pin hole of the pin connection seat 1.4 at the left end of the base body 1.1. At the same time, the connecting plate is connected to the pin connection seat 1.4 at the left end of the base body 1.1 by bolts.

[0095] Fig.15 The schematic diagram of the structure of the head support 12 is shown. The main body of the head support 12 is a second frame 12.1 welded by rib plates. The second frame 12.1 is saddle-shaped and fixed to the ground by anchor bolts. A plurality of functional fixing seats 12.2 are arranged on the top of the second frame 12.1.

[0096] Combination Fig.19A driving mechanism 13, a control cabinet 14, a transmission and locking mechanism 15, and a driving articulated sleeve 16 are arranged on the head support 12. The components installed on the head support 12 are described in detail below.

[0097] Fig.16 The structure diagram of the driving mechanism 13 is shown, and the driving mechanism 13 includes a driving motor 13.2, and the driving motor 13.2 is fixed to the head support 12 through a motor seat 13.1. A flat keyway is provided at the front section of the output shaft of the driving motor 13.2, and a first keyway slider 13.3 is placed in the flat keyway. The driving motor 13.2 is an AC motor, and its rotation is controlled by a control cabinet 14.

[0098] Fig.17 It is a schematic structural diagram of the transmission and locking mechanism 15, which includes a T-shaped base 15.1, a locking pin assembly 15.2 and a coupling plate assembly 15.3, wherein the T-shaped base 15.1 is fixed to the head bracket 12 by bolts.

[0099] The left end of the coupling disc assembly 15.3 is a coupling disc, which is connected to the right end pin connection seat 1.4 of the base body 1.1 by bolts. A pin is provided at the center of the left end, which is used to insert into the pin connection hole of the right end pin connection seat 1.4 of the base body 1.1 to ensure coaxiality. The left end of the coupling disc assembly 15.3 is also provided with a locking disc for locking with the locking pin assembly 15.2. Eight locking holes are evenly arranged on the locking disc to achieve angle locking when the assembly structure 3 is rotated and displaced. The right end of the coupling disc assembly 15.3 is a driving rod, which passes through the T-shaped base 15.1. A keyway is provided at the tail section of the driving rod, and a second keyway slider 15.4 is placed in the keyway.

[0100] The locking bolt assembly 15.2 is fixed to the T-shaped base 15.1 by two bolts. The locking bolt assembly 15.2 includes a locking bolt, a pin shaft housing and an internal proximity switch. When the locking bolt is inserted into the locking hole of the locking plate, the bottom of the locking bolt is disconnected from the proximity switch. At this time, the drive motor 13.2 cannot execute any drive command, which can ensure the self-locking function of the drive motor and avoid displacement and flipping caused by misoperation.

[0101] Fig.18 The figure shows the schematic diagram of the structure of the driving articulated sleeve 16, wherein the driving articulated sleeve 16 is provided with a slide groove adapted to the keyway sliders 13.3 and 15.4, and two through holes M10 threaded holes are provided at the vertical outer surface of the slide groove, so that the driving rod at the right end of the coupling plate assembly 15.3 can be connected to the output shaft of the driving motor 13.2 as a whole and fit tightly, so that the driving motor 13.2 can drive the base 1 to rotate.

[0102] The control cabinet 14 is used to control the drive motor 13.2, and is provided with three operating buttons, namely forward rotation, reverse rotation and emergency stop buttons.

[0103] When the forward and reverse buttons are pressed, the drive motor 13.2 can achieve any displacement posture of ±90°;

[0104] When the emergency stop button is pressed, the entire device is immediately in a power-off state, and the drive motor 13.2 is immediately interrupted to the emergency stop state. Any flipping operation of the device is not allowed. To start again, press the restart switch in the control cabinet 14;

[0105] When the locking pin of the locking pin assembly 15.2 is inserted into the locking hole, the driving motor 13.2 is not allowed to drive. When the locking pin is pulled out of the locking hole, the working state is restored and the driving motor 13.2 can be driven normally.

[0106] When the IGBT detection motor in the control cabinet 14 outputs the maximum torque and cannot drive the base 1, the drive motor 13.2 sends a load instruction to the control cabinet 14, the system suspends the drive operation of the drive motor 13.2, and the electrical system is immediately interrupted. To start again, press the restart switch in the control cabinet 14.

[0107] In order to assemble and move the assembly device provided in the embodiment of the present application, the four corners of the base body 1.1 are threadedly connected with a lifting ring 2, such as Figure 3 shown.

[0108] The following describes the assembly method of the above-mentioned group device:

[0109] (1) Place the tail bracket 11 on the ground and level it;

[0110] (2) Use a lifting device to lift the base 1, adjust the base 1 to a horizontal position, and assemble the base 1 with the tail bracket 11. The coaxiality of the two pin connection holes is required to be ≤0.01 mm;

[0111] (3) Assemble the driving mechanism 13, the transmission and locking mechanism 15, and the driving hinge sleeve 16 on the head support 12 to ensure that the coaxiality is ≤ 0.01 mm;

[0112] (4) Place the head support 12 horizontally and use another lifting device to assemble the transmission and locking mechanism 15 and the base 1, requiring the coaxiality to be ≤0.01 mm;

[0113] Use 6 hexagon socket bolts to fix the pin connection seat 1.4 with the threaded holes on the transmission and locking mechanism 15, use a level to measure the base plane, and use gasket filling to correct the height of the head bracket 12 to ensure that the overall flatness and straightness errors of the device are within 0.01mm, and use the anchor bolt assembly to fix the tail bracket 11 and the head bracket 12 to the ground. The state after the assembly is completed is shown in the figure. Fig. 20 .

[0114] (5) Insert the locking pin into the locking hole of the locking plate to ensure that the base 1 is in a stable and non-shaking state, and fix the transverse tightening mechanism 4 on the base 1. Fig.21 shown.

[0115] (6) Use lifting equipment to symmetrically hoist the clamping mechanisms 5, 6, 7 (2 pieces), 8 (2 pieces), 9, and 10 in sequence. Use different numbers of hexagon socket head bolts and spring washers to fix each type of clamping mechanism at the reserved position on the base 1, ensuring that it is firmly fixed to have sufficient strength to support the assembly structure 3. The assembly is completed as shown in the figure. Fig. 22 .

[0116] The following describes a method for assembling structural parts using an assembly device:

[0117] (1) Fig.23 and 24 As shown, all vertical tightening components are opened outward, and the butterfly nuts are tightened and fixed to the vertical tightening components so that they cannot rotate, the tightening screws of the first end clamping mechanism 5, the first middle clamping mechanism 7 and the third end clamping mechanism 9 are rotated back to the open state, the pressure plates of all retractable clamping components are slid outward to the open state, and the first tightening screw 4.2 of the horizontal tightening mechanism 4 is rotated back to the open state. After lifting, the bending plate 3.1 slowly falls onto the base 1, one end contacts the first backrest 1.3, and the other end rotates the first tightening screw 4.2 to tighten the workpiece, so that the workpiece is forced to be close to the first backrest 1.3.

[0118] (2) Pull out the locking pin completely and operate the button 14 of the control cabinet to achieve Fig.25 and 26 Rotate 90° in the direction to make the rear bending plate 3.1 located at the bottom. After the driving motor 13.2 stops and stabilizes, insert the locking pin into the locking hole, and the workpiece is close to the backrest of the clamping mechanism 6, 8 and 10. Then, extend the pressure plate of the retractable clamping assembly of the end clamping mechanism 6, 10 and press the upper end of the rear bending plate 3.1. At this time, draw a line on the rear bending plate 3.1, and use a welding gun to sequentially assemble the horizontal plate 3.2, the vertical plate 3.3 (2 pieces), and the rib plate 3.4 (2 pieces) to ensure that the riveting is firm. The final state is shown in the figure. Fig.25 and 26 .

[0119] (3) Fig.25 Pull out the locking pin of the state, and operate the button 14 of the control cabinet to realize Fig. 27 and Fig.28Rotate 90° in the direction, and after it stabilizes, insert the locking pin into the locking hole, and then use the lifting equipment to lift the front bending plate 3.5 to the required assembly position, ensuring that the bottom surface of the front bending plate 3.5 is close to the contact seat 1.2, so that one end of the front bending plate 3.5 contacts the first backrest seat 1.3, and the other end uses the first tightening screw 4.2 on the horizontal tightening mechanism 4 to make the front bending plate 3.5 force close to the first backrest seat 1.3; at this time, rotate the tightening screws on the end clamping mechanisms 5, 9 and the middle clamping mechanism 7 to tighten the side of the front bending plate 3.5, and extend the pressing plate of the retractable clamping assembly of the end clamping mechanisms 5, 9 to clamp the upper end of the front bending plate 3.5, and then use an electric welding machine to rivet and weld the horizontal plate 3.2, the vertical plate 3.3, the rib plate 3.4, and the front bending plate 3.5 firmly.

[0120] (4) Make overall adjustments to ensure the tightness of the butt welds and check the dimensions and positions.

[0121] (5) Fig. 27 In this state, use a lifting device to lift the sealing plate 3.6 to the required assembly position, then loosen the butterfly nuts on all vertical tightening components and adjust the rotation to Fig.29 As shown in the state, then tighten the butterfly nut and tighten the tightening screws on all vertical tightening components. After ensuring the various dimensional data of the sealing plate 3.6, use an electric welder to intermittently assemble the points to ensure that the riveting is firm. The final state is shown in Fig.29 .

[0122] (6) Fig.29 In the state, pull out the locking pin and operate the button 14 of the control cabinet to realize Fig.30 Rotate the direction 90°, insert the locking pin into the locking hole after it stabilizes, use an electric welder to intermittently sew the welds of the workpiece to ensure that the riveting is firm. The final state is shown in the figure. Fig.30 .

[0123] (7) Rotate and fix the device as Fig.31 In the state shown, a welding gun is used to sew the weld seams of the workpiece to ensure that the riveting is firm. After the welding is completed, the assembly structure 3 is lifted out using a lifting device.

[0124] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any changes or replacements that can be easily thought of by a person skilled in the art within the technical scope disclosed by the present invention should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.

Claims

1. A method for assembling a structural part for a port machinery product, using an assembly device for assembling a structural part for a port machinery product, characterized in that: The structural parts for port machinery products include rear bending plates, transverse plates, vertical plates, rib plates, front bending plates and sealing plates; The assembly device comprises: A base is rotatably arranged on the head bracket and the tail bracket, and a first backrest is arranged on the base; End clamping mechanisms used in pairs are used to longitudinally position, tighten, and vertically tighten the assembly structure; The middle clamping mechanism used in pairs is used to tighten the structural parts of the assembly longitudinally and vertically; A transverse tightening mechanism, arranged on the base, for cooperating with the first backing seat to perform transverse positioning and tightening of the assembly structure; and a driving mechanism, for driving the base to rotate to adjust the position of the assembly structure; Each end clamping mechanism and the middle clamping mechanism press the sealing plate of the assembly structure through the vertical pressing assembly at the top; the vertical pressing assembly includes a rotating cylinder and a threaded sleeve connected by a cantilever, wherein the rotating cylinder is rotatably connected to the rotating shaft at the top of the clamping mechanism, and a pressing screw for pressing the sealing plate downward is screwed in the threaded sleeve; A retractable clamping assembly is provided on the side of the end clamping mechanism, wherein the retractable clamping assembly on the front end clamping mechanism is used for quick longitudinal positioning of the front bending plate, and the retractable clamping assembly on the rear end clamping mechanism is used for quick longitudinal positioning of the rear bending plate; The telescopic clamping assembly includes a mounting seat, a fastening screw and a pressing plate. A guide bolt is screwed on the outer side of the mounting seat. The hexagonal head of the guide bolt cooperates with a pair of guide plates on the pressing plate, so that the pressing plate can move longitudinally. A long waist-shaped hole is provided on the pressing plate, and the fastening screw passes through the long waist-shaped hole and is threadedly connected to the mounting seat. A positioning reference block for positioning the bending plate is provided at the head end of the pressing plate, and the positioning reference block slightly protrudes from the bottom plane of the pressing plate. The end clamping mechanism and the middle clamping mechanism located at the front side are provided with a tightening screw for longitudinally tightening the assembly structure; the end clamping mechanism and the middle clamping mechanism located at the rear side are provided with a backing seat against the rear bending plate; The composition method comprises: (1) Open all vertical jacking components outward, rotate the jacking screws for longitudinal tightening on the end clamping mechanism and the middle clamping mechanism on the front side to the open state, slide the pressure plates of all retractable clamping components outward to the open state, adjust the transverse jacking mechanism to the open state, slowly drop the rear bending plate onto the base after hoisting, and adjust the transverse jacking mechanism so that the rear bending plate abuts against the first backrest; (2) Rotate the base backward 90°, so that the rear bending plate is close to the backrest seat on the end clamping mechanism and the middle clamping mechanism at the rear side; extend the pressing plate of the retractable clamping assembly of the end clamping mechanism at the rear side, press the upper end of the rear bending plate, draw a line on the rear bending plate, and use a welding gun to sequentially assemble the horizontal plate, vertical plate, and rib plate of the assembly structure; (3) Rotate the base to restore it to its original position, hoist the front bending plate to the position where the assembly is required, and use the transverse tightening mechanism to make the front bending plate rest against the first backrest; use the tightening screws on the end clamping mechanism and the middle clamping mechanism located on the front side to tighten the front bending plate, and extend the pressing plate of the retractable pressing assembly of the end clamping mechanism located on the front side to press the upper end of the front bending plate, and then use an electric welding machine to rivet and weld the horizontal plate, vertical plate, rib plate, and front bending plate of the assembly structure firmly; (4) Overall adjustment to ensure tightness of butt welds and check dimensions and positions; (5) Lift the sealing plate to the required assembly position, rotate all vertical tightening components inward, and use the tightening screws on the vertical tightening components to tighten the sealing plate downward. After ensuring the various dimensional data of the sealing plate, use an electric welder to intermittently assemble the points; (6) Rotate the base backward 90° and use an electric welder to intermittently weld the workpiece to ensure that the riveting is firm; (7) After restoring the base to its original position, rotate it forward 90° and use a welding gun to sew the weld of the workpiece to ensure that the riveting is firm. After the welding is completed, lift out the assembled structure.

2. The assembly method according to claim 1, characterized in that: The assembly device also includes a locking pin assembly and a connecting disk assembly. The connecting disk assembly is used to connect the driving mechanism and the base. The locking pin of the locking pin assembly is inserted into the locking hole of the locking disk of the connecting disk assembly to achieve base angle locking. Before the base is rotated and adjusted, the locking pin is pulled out of the locking hole. After the base is rotated into place, the locking pin is inserted into the locking hole to lock the angle of the base.

3. The assembly method according to claim 1, characterized in that: A butterfly nut is installed on the rotating cylinder to fix the rotating cylinder.

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