A multifunctional loading device for automatic positioning, clamping, lifting and pushing of barrel sections

Abstract

The present invention relates to the field of rocket welding, and in particular to a multifunctional loading device for automatic positioning, clamping, lifting and pushing of barrel sections. The device comprises: a movable base assembly, a rotating drag chain assembly, an inner column assembly, an outer slide box assembly, an outer slide seat, a pneumatic support plate assembly, and an inner support tooling; the movable base assembly can move and rotate horizontally, and is connected to a rotating drag chain assembly and an inner column assembly; the outer portion of the inner column is sleeved with the outer slide box assembly, and can be lifted and lowered along a linear guide rail; a ball screw drive device and a linear guide pair are provided on the outer side of the outer slide box assembly, and the outer slide seat is connected to the ball screw drive device and the linear guide pair to achieve up and down lifting movement; the outer slide seat is connected to the pneumatic support plate assembly; and the inner support tooling is fixed to the top of the outer slide box assembly. The present invention facilitates the translation, rotation, lifting and internal support of large-sized barrel sections, and cooperates with other equipment to achieve vertical welding of the annular seam of the tank body.

Description

Technical Field

[0001] The present invention relates to the field of rocket welding, and in particular to a multifunctional loading device for automatic positioning, clamping, lifting and pushing of barrel sections. Background Art

[0002] The friction stir welding of the circumferential seam of the 5m-diameter tank of a new generation of manned launch vehicles uses a vertical assembly welding solution, significantly improving product quality and production efficiency. The principle of vertical assembly welding of the tank's circumferential seam is that the tank is fixed during welding, while the welding actuator rotates around the tank to complete the circumferential seam welding.

[0003] The vertical assembly welding of the tank body is planned to start from the rear bottom assembly and be assembled and welded in sequence to the front bottom assembly. No secondary assembly is performed during the welding process. The assembly of the common bottom assembly and the locking bottom ring seam of the fuel tank barrel section is completed in the vertical state on the frame. This mode can eliminate the sealing welding of the fuel tank. During the entire assembly and welding process of the tank, only the sealing welding of the oxygen tank front bottom assembly / barrel section butt ring seam is required.

[0004] During the welding process, the cylinder sections to be welded and the inner support mechanisms of different lengths need to be pushed upward to the height of the welding actuator.

[0005] Therefore, a multifunctional loading device with automatic positioning, clamping, lifting and pushing of barrel sections is needed to push the barrel sections to be welded and the internal support tooling to the height of the welding actuator, so as to meet the internal tightening requirements of the annular seam between the bottom of the box and the barrel section, or the annular seam between the barrel sections, and cooperate with the external pressure fixture system to complete the reliable internal support and external pressure of the product, so as to facilitate the welding actuator to complete the annular seam welding of the tank body. Summary of the Invention

[0006] The technical problem to be solved by the present invention is to provide a multifunctional loading device for automatic positioning, clamping, lifting and pushing of cylinder segments, which is convenient for realizing translation, rotation, lifting and internal support of large-sized cylinder segments, and cooperates with other equipment to realize vertical welding of the circumferential seam of the tank body.

[0007] The present invention provides a multifunctional loading device for automatic positioning, clamping, lifting and pushing of barrel sections, comprising: a movable base assembly, a rotating drag chain assembly, an inner column assembly, an outer sliding box assembly, an outer sliding seat, a pneumatic support plate assembly, and an inner support tooling;

[0008] The mobile base assembly includes: a base, a mobile driving device, an external gear type slewing support, an inner column connecting plate, and a rotation driving device;

[0009] The center of the base is hollow, and a rotation drive device and an external gear slewing support are fixed on it; the rotation drive device is engaged with the external gear slewing support to drive the external gear slewing support to rotate around the center of the base;

[0010] The outer gear type slewing support is connected to an inner column connecting plate;

[0011] The side of the base is connected to the mobile driving device, and the bottom is provided with a slider;

[0012] The rotary drag chain assembly includes a drag chain outer ring fixing plate, a drag chain inner ring fixing seat, and a drag chain assembly;

[0013] The outer ring fixing plate of the drag chain is fixed on the base, and the inner ring fixing seat of the drag chain is fixed on the inner column connecting plate. The outer side and inner side of the drag chain assembly are respectively connected to the outer ring fixing plate and the inner ring fixing seat of the drag chain to ensure that the outer ring of the rotating drag chain assembly is fixed and the inner ring rotates;

[0014] The inner column assembly includes: an inner column, a first ball screw drive device, a first hydraulic balance cylinder, and a first linear guide pair;

[0015] The lower end of the inner column is connected to the inner column connecting plate, and a first ball screw drive device and two first linear guide pairs are arranged on the front and rear sides of the outer surface of the inner column, and a first hydraulic balance cylinder is arranged on the left and right sides;

[0016] The outer sliding box assembly includes: an inner support connecting plate, a second ball screw drive device, an outer sliding box, and a second linear guide rail pair;

[0017] The inner side of the outer sliding box is connected to the first ball screw drive device, the first linear guide pair, and the first hydraulic balance cylinder;

[0018] Each outer side of the outer sliding box is provided with a set of second ball screw drive devices and two second linear guide rail pairs;

[0019] The top of the outer sliding box is connected to an annular inner supporting connecting plate;

[0020] The rear end of the outer slide is connected to the second linear guide pair, and the upper end is connected to the second ball screw drive device and the pneumatic support plate assembly respectively;

[0021] The inner support tooling is fixed on the inner support connecting plate.

[0022] Preferably, circular holes are provided on both sides of the base to serve as entry and exit passages for operators.

[0023] Preferably, the inner ring of the inner column connecting plate is connected to a first positioning sleeve to achieve positioning and fixation of the inner column.

[0024] Preferably, the outer sliding box is assembled by two outer sliding box left and right weldments and two outer sliding box front and rear weldments.

[0025] Preferably, a second positioning sleeve is connected to the inner ring of the inner support connecting plate to achieve positioning and fixation of the inner support tooling.

[0026] Preferably, a raising column is provided between the outer sliding seat and the pneumatic support plate assembly;

[0027] The outer slide is positioned and connected to the pad column through positioning pins and bolts, and the pad column is positioned and connected to the pneumatic support plate assembly through positioning pins and bolts.

[0028] Preferably, the pneumatic support plate assembly comprises: a base ring, a cylinder support unit, a barrel support wheel and a third positioning sleeve;

[0029] The cylinder tightening unit, cylinder section support wheel and third positioning sleeve are evenly fixed on the base ring;

[0030] The base ring is connected to the upper surface of the outer sliding seat.

[0031] Preferably, the number of the cylinder tightening units is 16 to 24, and the number of the barrel section supporting wheels is 16 to 24;

[0032] The cylinder tightening unit and the cylinder section support wheel are set at intervals;

[0033] There are four third positioning sleeves, which are evenly arranged on the base ring.

[0034] Preferably, the inner support fixture comprises: a welding base, an inner support block assembly, an outer support block assembly and a wedge block assembly;

[0035] The inner support block assembly and the outer support block assembly are both connected to the welding base and are spaced apart;

[0036] The inner and outer support block assemblies are driven by oil cylinders, and the sliders at their lower parts run along the guide rails to realize the outward expansion and inward contraction of the inner and outer support block assemblies;

[0037] The back of the welding base is connected with a wedge block assembly, which corresponds to the inner support block assembly to achieve wedging of the back of the inner support block assembly.

[0038] Preferably, the inner support tooling comprises: 8 sets of inner support block assemblies, 8 sets of outer support block assemblies and 16 sets of wedge block assemblies;

[0039] Every two groups of wedging block assemblies are wedged and fixed with one group of inner supporting block assemblies.

[0040] Preferably, it also includes an aluminum alloy lifter, which is arranged inside the inner column assembly.

[0041] Compared to existing technologies, the present invention's multifunctional loading device for automatic positioning, clamping, lifting, and pushing of barrel segments integrates translation, rotation, lifting, and internal support functions. It can load barrel segments onto external racks and push barrel segments and internal support fixtures into racks. It can lift and lock barrel segments with a diameter of 5m and a length of 0-7m. Both lifting and lowering motions are driven by a ball screw and guided by linear guides, ensuring precise drive and guidance. A hydraulic cylinder counterbalances the weight of large components, ensuring excellent load-bearing performance. BRIEF DESCRIPTION OF THE DRAWINGS

[0042] Figure 1 A schematic diagram showing the structure of a multifunctional loading device for automatic positioning, clamping, lifting and pushing of barrel sections;

[0043] Figure 2 A schematic diagram showing the structure of the mobile base assembly;

[0044] Figure 3 A cross-sectional view showing a mobile base assembly;

[0045] Figure 4 A schematic diagram showing the structure of a rotary drag chain assembly;

[0046] Figure 5 A schematic diagram showing a portion of the structure of a rotary drag chain assembly;

[0047] Figure 6 A schematic diagram showing the structure of the inner column assembly;

[0048] Figure 7 A schematic diagram showing the structure of the outer sliding box assembly;

[0049] Figure 8 A schematic diagram showing the structure of the inner and outer sliding boxes in one embodiment;

[0050] Figure 9 A schematic diagram showing the structure of an outer sliding box in another embodiment;

[0051] Figure 10 A schematic diagram showing the structure of the outer slide;

[0052] Figure 11 A schematic diagram showing the structure of a pneumatic support plate assembly;

[0053] Figure 12 A schematic diagram showing the structure of the raised column;

[0054] Figure 13 A cross-sectional view showing the raised columns;

[0055] Figure 14 A diagram showing the connection relationship between the raising column, the pneumatic support plate assembly and the outer slide;

[0056] Figure 15 A schematic diagram showing the structure of the internal support tooling;

[0057] Figure 16 It shows the state diagram of a 7m long tube section;

[0058] Figure 17 It represents the state diagram of the short barrel section;

[0059] In the figure,

[0060] 1-Mobile base assembly, 2-Rotary drag chain assembly, 3-Inner column assembly, 4-Outer sliding box assembly, 5-Outer sliding seat, 6-Pneumatic support plate assembly, 7-Inner support tooling, 8-Aluminum alloy lift, 9-Raising column, 10-Base, 11-Mobile drive device, 12-External gear slewing support, 13-Inner column connecting plate, 14-First positioning sleeve, 15-Rotary drive device, 16-Drag chain outer ring fixing plate, 17-Drag chain inner ring fixing seat, 18-Drag chain assembly, 19-Inner column, 20-First ball screw drive device, 21-First hydraulic balance cylinder, 22-First Linear guide pair, 23-inner support connecting plate, 24-second positioning sleeve, 25-second ball screw drive device, 26-outer slide box, 27-second linear guide pair, 28-left and right components of the outer slide box, 29-front and rear components of the outer slide box, 30-connecting bolt, 31-locating pin, 32-nut connecting screw, 33-slider connecting screw, 34-locating pin connecting screw, 35-base ring, 36-cylinder tightening unit, 37-barrel section support wheel, 38-third positioning sleeve, 39-welding base, 40-inner support block assembly, 41-outer support block assembly, 42-wedge tightening block assembly. DETAILED DESCRIPTION

[0061] In order to further understand the present invention, embodiments of the present invention are described below in conjunction with examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of the present invention, rather than for limiting the present invention.

[0062] The design idea of the present invention is: "Put the outer barrel section on the rack, push the barrel section and internal support tooling into the rack", the inner column is fixed, the outer slide box performs lifting and lowering movements, and the outer slide box lifts the fixed internal support tooling to the height of the welding main machine to meet the internal support needs of the barrel section circumferential seam welding; the four outer slide seats arranged on the outside of the outer slide box lift the pneumatic support plate assembly and the barrel section relative to the outer slide box to realize lifting and lowering movements, thereby matching the height of the upper end face of the barrel section and the fixed internal support tooling.

[0063] The barrel section loading device can push barrel sections with a height of 0 to 7000 mm upwards to align with the quadrants. It has the ability to rotate ±180° around the central axis. Before circumferential seam welding, the longitudinal seam position of the barrel section to be welded can be rotated and adjusted to ensure the optimal welding state.

[0064] The internal support fixture on the barrel loading device is primarily used to tighten the circumferential seams between the bottom assembly and the barrel, between barrel segments, and between the common base assembly and barrel segments. After the internal support fixture tightens the barrel, the operator can access the platform where the internal support fixture is fixed via an aluminum alloy elevator inside the barrel loading device. This facilitates pre- and post-weld weld cleaning, auxiliary tightening of the fixed internal supports, and assembly status inspection.

[0065] The embodiment of the present invention discloses a multifunctional loading device for automatic positioning, clamping, lifting and pushing of barrel segments, such as Figure 1 As shown, it includes: a mobile base assembly 1, a rotating drag chain assembly 2, an inner column assembly 3, an outer sliding box assembly 4, an outer sliding seat 5, a pneumatic support plate assembly 6, and an inner support tooling 7;

[0066] like Figure 2 and 3 As shown, the movable base assembly 1 includes: a base 10, a movable driving device 11, an external gear type rotary support 12, an inner column connecting plate 13, a first positioning sleeve 14, and a rotary driving device 15;

[0067] The center of the base 10 is hollow, and a rotation drive device 15 and an external gear rotary support 12 are fixed thereon; the rotation drive device 15 engages with the external gear rotary support 12 to drive the external gear rotary support 12 to rotate around the center of the base 10;

[0068] The side of the base 10 is connected to the mobile driving device 11, and the bottom of the base 10 is provided with a slider for guiding the movement of the welding base;

[0069] The device of the present invention is used to be arranged on a bed assembly to realize two actions: movement in a horizontal direction and rotation around the center of the base 10 .

[0070] The mobile driving device 11 specifically includes a servo motor and a reducer, the servo motor is connected to the reducer, and a pinion is sleeved on the spline shaft of the reducer;

[0071] The mobile drive device 11 is preferably provided with two sets, which are respectively connected to both sides of the base 10;

[0072] The rotation drive device 15 specifically includes a servo motor and a reducer, the servo motor is connected to the reducer, and a pinion is sleeved on the spline shaft of the reducer; the pinion is engaged with the external gear slewing support 12, driving the external gear slewing support 12 to rotate around the center of the base 10;

[0073] The rotary drive device 15 is preferably provided with two sets, which are arranged on both sides of the external gear rotary support 12;

[0074] Both horizontal movement and rotation around the center use two sets of servo motors for dual servo motor backlash elimination. By adjusting the tensioning torque between the two motors, the goal of eliminating gear reverse backlash and improving positioning accuracy is achieved.

[0075] The base 10 is provided with two or more circular holes on both sides thereof, which serve as entry and exit passages for operators.

[0076] The outer gear type slewing support 12 is connected to an inner column connecting plate 13;

[0077] The fixed inner column connecting plate is securely connected to the outer ring of the external gear type slewing support 12 by bolts, and rotates around the center of the base 10 under the drive of the rotary drive device 15 .

[0078] The inner ring of the inner column connecting plate 13 is connected to the first positioning sleeve 14 by bolts to achieve positioning and fixing of the inner column 19.

[0079] like Figure 4 and Figure 5 As shown, the rotary drag chain assembly 2 is used to transport electric wires, air pipes and hydraulic pipes.

[0080] The rotary drag chain assembly 2 includes a drag chain outer ring fixing plate 16, a drag chain inner ring fixing seat 17, and a drag chain assembly 18;

[0081] The outer ring fixing plate 16 of the drag chain is fixed on the base 10, and the inner ring fixing seat 17 of the drag chain is fixed on the inner column connecting plate 13. The outer side and inner side of the drag chain assembly 18 are respectively connected to the outer ring fixing plate 16 and the inner ring fixing seat 17 of the drag chain, ensuring that the rotating drag chain assembly "outer ring is fixed and inner ring rotates";

[0082] like Figure 6 As shown, the inner column assembly 3 includes: an inner column 19, a first ball screw drive device 20, a first hydraulic balance cylinder 21, and a first linear guide pair 22;

[0083] The inner column assembly 3 and the above components rotate around the center of the movable base 10.

[0084] The lower end of the inner column 19 is connected to the inner column connecting plate 13.

[0085] A first ball screw drive device 20 and two parallel first linear guide pairs 22 are arranged on the front and rear sides of the outer surface of the inner column 19, and a first hydraulic balance cylinder 21 is arranged on the left and right sides to balance the gravity of the outer slide box assembly 4 and the above components.

[0086] The first ball screw drive 20 specifically includes a ball screw, a nut mounted on the ball screw, a servo motor, and a speed reducer. The nut is connected to the inner sides of the left and right members 28 of the outer slide case, and the drive mechanism drives the outer slide case to move up and down relative to the inner column assembly.

[0087] The first linear guide pair 22 is provided with a slider, which is connected to the inner side of the outer sliding box 26;

[0088] The first hydraulic balance cylinder 21 is connected to the inner side of the outer sliding box 26;

[0089] like Figure 7 As shown, the outer sliding box assembly 4 includes: an inner support connecting plate 23, a second ball screw driving device 25, an outer sliding box 26, and a second linear guide pair 27;

[0090] like Figure 8 and 9 As shown, taking into full consideration the processing manufacturability of large components, the outer sliding box 26 is preferably assembled by two outer sliding box left and right weldments 28 and two outer sliding box front and rear weldments 29. Each weldment is connected by connecting bolts 30.

[0091] The inner side of the outer sliding box 26 is connected to the first ball screw drive device 20, the first linear guide pair 22, and the first hydraulic balance cylinder 21; that is, the first linear guide pair 22 is provided with a slider, which is connected to the inner side of the left and right members 28 of the outer sliding box; the first hydraulic balance cylinder 21 is connected to the inner side of the front and rear members 29 of the outer sliding box; each outer side of the outer sliding box 26 is provided with a set of second ball screw drive devices 25 and two second linear guide pairs 27;

[0092] The second ball screw driving device 25 is a driving device, which specifically includes: a ball screw, a nut mounted on the ball screw, a servo motor, and a reducer.

[0093] The second linear guide pair 27 is a guiding device.

[0094] The second ball screw drive 25 and the second linear guide pair 27 realize the synchronous lifting and lowering of the four outer slides 5;

[0095] The top of the outer sliding box 26 is connected to the inner support connecting plate 23; the inner support connecting plate 23 has a ring hole inside, which is convenient for operators to enter the upper surface of the inner support tooling through the elevator;

[0096] The inner ring of the inner support connecting plate 23 is connected to the second positioning sleeve 24 to achieve positioning and fixation of the inner support tooling 7.

[0097] like Figure 10As shown, the rear end of the outer slide 5 is connected to the second linear guide pair 27, and the upper end is connected to the second ball screw drive device 25 and the pneumatic support plate assembly 6;

[0098] Specifically, the rear end of the outer slide 5 is connected to the slider of the second linear guide pair 27 via a slider connecting screw 33. The upper end of the outer slide 5 is fixedly connected to a positioning pin 31 via a positioning pin connecting screw 34. The positioning pin 31 locates the third positioning sleeve 38 of the pneumatic support plate assembly 6 and is also fixed with a screw. The upper end of the outer slide 5 is connected to the nut of the second ball screw drive device 25 via a nut connecting screw 32.

[0099] After the outer slide 5 lifts the pneumatic support plate assembly and the barrel section to the welding position, the servo motor brake function of the second ball screw drive device 25 is used to achieve reliable locking to prevent gaps from occurring when the product moves downward during the assembly and welding processes.

[0100] like Figure 11 As shown, the pneumatic support plate assembly 6 includes: a base ring 35, a cylinder tightening unit 36, a barrel section support wheel 37 and a third positioning sleeve 38;

[0101] The pneumatic support plate assembly 6 is hoisted and fixed as a whole on the upper end surfaces of the four outer slides 5;

[0102] The cylinder tightening unit 36, the cylinder section support wheel 37 and the third positioning sleeve 38 are evenly fixed on the base ring 35;

[0103] The base ring 35 is the main load-bearing member and is welded with alloy structural steel. The cylinder tightening unit 36 can achieve radial expansion and contraction within a certain stroke, which is convenient for the installation and tightening positioning of the barrel section, and ensures that the barrel section axis coincides with the rotation axis of the movable base assembly 1; the barrel section support wheel unit 37 can realize the support positioning of the barrel section after installation, and ensure that the lower end face of the barrel section is parallel to the linear guide rail on the bed assembly.

[0104] There are 16 to 24 cylinder tightening units 36 and 16 to 24 cylinder section support wheels 37;

[0105] The cylinder tightening unit 36 and the barrel section supporting wheel 37 are arranged at intervals;

[0106] There are four third positioning sleeves 38 , which are evenly arranged on the base ring 35 , sleeved on the positioning pins 31 and fixed with screws.

[0107] To meet the lifting requirements of short barrel sections not exceeding 1.5m, such as Figures 12-14 As shown, it is preferred to add a spacer column 9 between the pneumatic support plate assembly 6 and the outer slide 5;

[0108] The outer slide 5 is positioned by cooperating with the positioning sleeve of the raising column 9 through the positioning pin, and the raising column 9 is positioned by cooperating with the third positioning sleeve 38 of the pneumatic support plate assembly 6 through the positioning pin, and both are reliably connected by bolts.

[0109] like Figure 15 As shown, the inner support fixture 7 is reliably fixed to the inner support fixture connecting plate 23 of the outer sliding box assembly 4, and is used for internal tightening of the annular seams between the box bottom assembly and the barrel section, the annular seams between the barrel sections, and the annular seams between the common bottom assembly and the barrel section.

[0110] The inner support fixture 7 includes: a welding base 39, an inner support block assembly 40, an outer support block assembly 41 and a wedge block assembly 42;

[0111] The inner support block assembly 40 and the outer support block assembly 41 are both connected to the welding base 39, and the two are arranged at intervals; the adjacent outer support blocks and inner support blocks are in a "yin-yang mold fit" manner with each other, and the intersection surface of the two adjacent support blocks is at a certain angle to the radial direction. Two axial wedging assemblies based on the inclined plane force amplification principle are added to the back of each group of inner support block assemblies to achieve reliable locking of all radial support block assemblies.

[0112] Specifically, the inner support block assembly 40 and the outer support block assembly 41 are connected by the rear support of the oil cylinder and the welding base 39;

[0113] The inner support block assembly 40 and the outer support block assembly 41 are both driven by oil cylinders to ensure a strong inner support force. The sliders at the bottom thereof run along the guide rails to achieve the outward expansion and inward contraction of the inner support block assembly 40 and the outer support block assembly 41; the guide rails are located on the welding base 39.

[0114] The back of the welding base 39 is connected to a wedge block assembly 42, which corresponds to the inner support block assembly 40, so as to achieve wedging of the back of the inner support block assembly 40, ensuring that no retreat occurs when the huge upsetting force during welding is endured.

[0115] The inner support tooling includes: 8 sets of inner support block assemblies 40, 8 sets of outer support block assemblies 41 and 16 sets of wedge block assemblies 42;

[0116] Every two groups of wedging block assemblies 42 wedge and fix a group of inner support block assemblies 40 .

[0117] The multifunctional loading device for automatic positioning, clamping, lifting and pushing of barrel segments described in the present invention further includes an aluminum alloy elevator 8, which is arranged inside the inner column assembly.

[0118] The aluminum alloy lifter 8 allows operators to safely reach the operating platform of the inner support fixture 7, facilitating pre- and post-weld cleaning of welds, auxiliary tightening of the inner supports, and assembly status inspection. Crafted from high-strength aluminum profiles, the aluminum alloy lifter 8 boasts a stable and compact structure, ensuring smooth, safe, and reliable lifting.

[0119] The main technical indicators of the multifunctional loading device for automatic positioning, clamping, lifting and pushing of barrel segments of the present invention are as follows:

[0120] (1) Meet the lifting and locking requirements for the welding height of the circumferential seam assembly of tank sections with a diameter of 5m and a length of 0-7000mm;

[0121] (2) It has the function of horizontal transverse movement along the bed assembly, with a transverse speed range of 0 to 28 m / min, which is steplessly adjustable;

[0122] (3) It has the function of rotating ±180° around the central axis, with a rotation speed range of 0 to 28 m / min, which is infinitely adjustable;

[0123] (4) The lifting speed range of the fixed internal support fixture and the tank barrel section is 0-1m / min and is infinitely adjustable;

[0124] (5) The fixed internal support fixture adopts hydraulic drive and has strong internal support capacity. The single support force of 8 sets of internal support blocks and 8 sets of external support blocks can reach 20t, and the wedging force generated by each of the 16 sets of wedging blocks can reach 200t.

[0125] (6) The tightening force of a single tightening unit of the pneumatic support plate is 780N, and 24 sets of tightening units can ensure the tightening of the lower end surface of the cylinder section.

[0126] The main features are:

[0127] (1) The multifunctional barrel section loading device with automatic positioning, clamping, lifting and pushing is a multifunctional barrel section loading device that integrates translation, rotation, lifting and internal support functions;

[0128] (2) It can realize the installation of cylinder sections outside the frame, push cylinder sections and internal support fixtures inside the frame, and can realize the lifting and locking of cylinder sections with a diameter of 5m and any length of 7m or less;

[0129] (3) The lifting and lowering movements of large components of the device are all driven by ball screws and guided by linear guides to ensure precise driving and guiding;

[0130] (4) The device uses two sets of hydraulic cylinders to balance the gravity of large components, such as the outer sliding box and above;

[0131] (5) The fixed internal support fixture adopts hydraulic drive to achieve internal tightening of the barrel section, which satisfies the internal tightening of the annular seam between the box bottom assembly and the barrel section, the annular seam between the barrel section and the annular seam between the common bottom assembly and the barrel section;

[0132] (6) An aluminum alloy lift is installed inside the device to facilitate operators to reach the platform where the internal support tooling is fixed.

[0133] The above embodiments are only intended to help understand the method and core concept of the present invention. It should be noted that, without departing from the principles of the present invention, a number of improvements and modifications may be made to the present invention by those skilled in the art, and such improvements and modifications also fall within the scope of protection of the claims of the present invention.

[0134] The above description of the disclosed embodiments is intended to enable one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A multifunctional loading device for automatic positioning, clamping, lifting and pushing of barrel sections, characterized in that: include: Mobile base assembly, rotating drag chain assembly, inner column assembly, outer sliding box assembly, outer sliding seat, pneumatic support plate assembly, inner support tooling; The mobile base assembly includes: a base, a mobile driving device, an external gear type slewing support, an inner column connecting plate, and a rotation driving device; The center of the base is hollow, and a rotation drive device and an external gear slewing support are fixed on it; the rotation drive device is engaged with the external gear slewing support to drive the external gear slewing support to rotate around the center of the base; The external gear type slewing support is connected to an annular inner column connecting plate; The side of the base is connected to the mobile driving device, and the bottom is provided with a slider; The rotary drag chain assembly includes a drag chain outer ring fixing plate, a drag chain inner ring fixing seat, and a drag chain assembly; The outer ring fixing plate of the drag chain is fixed on the base, and the inner ring fixing seat of the drag chain is fixed on the inner column connecting plate. The outer side and inner side of the drag chain assembly are respectively connected to the outer ring fixing plate and the inner ring fixing seat of the drag chain to ensure that the outer ring of the rotating drag chain assembly is fixed and the inner ring rotates; The inner column assembly includes: an inner column, a first ball screw drive device, a first hydraulic balance cylinder, and a first linear guide pair; The lower end of the inner column is connected to the inner column connecting plate, and a first ball screw drive device and two first linear guide pairs are arranged on the front and rear sides of the outer surface of the inner column, and a first hydraulic balance cylinder is arranged on the left and right sides; The outer sliding box assembly includes: an inner support connecting plate, a second ball screw drive device, an outer sliding box, and a second linear guide rail pair; The inner side of the outer sliding box is connected to the first ball screw drive device, the first linear guide pair, and the first hydraulic balance cylinder; Each outer side of the outer sliding box is provided with a set of second ball screw drive devices and two second linear guide rail pairs; The top of the outer sliding box is connected to the inner supporting connecting plate; The rear end of the outer slide is connected to the second linear guide pair, and the upper end is connected to the second ball screw drive device and the pneumatic support plate assembly respectively; The inner support tooling is fixed on the inner support connecting plate.

2. The multifunctional loading device for automatic positioning, clamping, lifting and pushing of barrel segments according to claim 1 is characterized in that: Circular holes are formed on both sides of the base.

3. The multifunctional loading device for automatic positioning, clamping, lifting and pushing of barrel sections according to claim 1 is characterized in that: The inner ring of the inner column connecting plate is connected to the first positioning sleeve to achieve positioning and fixing of the inner column.

4. The multifunctional loading device for automatic positioning, clamping, lifting and pushing of barrel sections according to claim 1 is characterized in that: The outer sliding box is assembled by two outer sliding box left and right weldments and two outer sliding box front and rear weldments.

5. The multifunctional loading device for automatic positioning, clamping, lifting and pushing of barrel sections according to claim 1 is characterized in that: The inner ring of the inner support connecting plate is connected to the second positioning sleeve to achieve positioning and fixation of the inner support tooling.

6. The multifunctional loading device for automatic positioning, clamping, lifting and pushing of barrel sections according to claim 1 is characterized in that: A raising column is provided between the outer sliding seat and the pneumatic support plate assembly; The outer slide is positioned and connected to the pad column through positioning pins and bolts, and the pad column is positioned and connected to the pneumatic support plate assembly through positioning pins and bolts.

7. The multifunctional loading device for automatic positioning, clamping, lifting and pushing of barrel segments according to claim 1 is characterized in that: The pneumatic support plate assembly includes: a base ring, a cylinder tightening unit, a cylinder section support wheel and a third positioning sleeve; The cylinder tightening unit, cylinder section support wheel and third positioning sleeve are evenly fixed on the base ring; The base ring is connected to the upper surface of the outer sliding seat.

8. The multifunctional loading device for automatic positioning, clamping, lifting and pushing of barrel segments according to claim 7 is characterized in that: There are 16 to 24 cylinder tightening units and 16 to 24 cylinder section support wheels; The cylinder tightening unit and the cylinder section support wheel are set at intervals; There are four third positioning sleeves, which are evenly arranged on the base ring.

9. The multifunctional loading device for automatic positioning, clamping, lifting and pushing of barrel segments according to claim 1 is characterized in that: The inner support fixture comprises: a welding base, an inner support block assembly, an outer support block assembly and a wedge block assembly; The inner support block assembly and the outer support block assembly are both connected to the welding base and are spaced apart; The inner and outer support block assemblies are driven by oil cylinders, and the sliders at their lower parts run along the guide rails to realize the outward expansion and inward contraction of the inner and outer support block assemblies; The back of the welding base is connected with a wedge block assembly, which corresponds to the inner support block assembly to achieve wedging of the back of the inner support block assembly.

10. The multifunctional loading device for automatic positioning, clamping, lifting and pushing of barrel segments according to claim 9 is characterized in that: The inner support tooling includes: 8 sets of inner support block assemblies, 8 sets of outer support block assemblies and 16 sets of wedge block assemblies; Every two groups of wedging block assemblies are wedged to fix a group of inner support block assemblies.

11. The multifunctional loading device for automatic positioning, clamping, lifting and pushing of barrel segments according to claim 1 is characterized in that: It also includes an aluminum alloy lifter, which is arranged inside the inner column assembly.

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