CN219239003U - Hoisting tool for open tank - Google Patents

Abstract

The utility model relates to an open tank lifting tool, and belongs to the technical field of welding. The technical proposal is as follows: the lower parts of the two ends of the longitudinal beam assembly (2) are respectively provided with a clamp assembly I (3) and a clamp assembly II (4) which have the same structure; the clamp assembly I (3) and the clamp assembly II slide on longitudinal linear guide rails (23) at two ends of the longitudinal beam (20); the opening expansion assembly I and the opening expansion assembly II of the clamp assembly I are symmetrically arranged at the lower part of the longitudinal sliding plate assembly I (5), the tank body pressing device (10) is matched with the tank body supporting assembly (11), the tank body pressing device is positioned between the opening expansion assembly I and the opening expansion assembly II, and the longitudinal sliding plate assembly I (5) is arranged at the middle upper part of the beam assembly I (7) and is connected with the tank body pressing device (10). The utility model ensures that the opening of the opening offset tank body is positioned and pressed at the axis of the welding fixture, reduces the labor intensity of manual adjustment, reduces the cost and improves the production efficiency and the processing quality.

Description

Hoisting tool for open tank

Technical Field

The utility model relates to an open tank lifting tool, which is particularly used for adjusting and lifting the open posture of an open non-circular section tank (such as an eight-section arc section tank) so as to facilitate the seam welding of the open tank, and belongs to the technical field of welding.

Background

The utility model relates to an open tank body, which is a tank body formed by rolling plates. Large tanks are widely used in the field of storage and transportation of gaseous products, liquid products, powdery materials, and are often used in low temperature, corrosive, and vibratory impact environments, and therefore, safety and service life are critical. The storage tank is formed by welding an open tank body and end sockets at two ends, wherein the tank body is formed by welding a plate through a seam after rolling, and the traditional method comprises the following steps: after the open tank body coiled plate is formed, the open tank body is horizontally lifted out of the coiled plate machine by a manual lifting tool in a manual operation mode, and is lifted into a welding equipment fixture, when the open tank body is installed to the welding equipment fixture, the open tank body is drooped, and the edge of the tank body needs to be positioned on a fixture positioning surface by the aid of a tool in a manual mode, so that the labor intensity is high, the time consumption is long in the whole operation process, the tank body is easy to deform additionally, and the quality of a product is influenced.

The existing manual lifting appliance is characterized in that a plurality of supporting rods are usually stretched out at equal angles on an arc-shaped section lifting appliance body, supporting wheels are arranged at the front ends of the supporting rods, and the supporting rods can be manually adjusted to stretch and retract along the radial direction of the lifting appliance body according to the size of a workpiece so as to adapt to open tank bodies with different section sizes. The prior art has the following problems: the expansion and contraction of each supporting rod are required to be adjusted by manual work before the workpiece is lifted, the adjustment precision of each supporting rod is controlled by manual work, in the installation process, the supporting rods can not be adjusted in an expansion and contraction way, and in the working period after the lifting, the opening size of the section of the tank body can only be opened by using auxiliary tools; for a can body with offset opening, particularly a can body with a non-circular special-shaped section (such as eight sections of arcs), because the section is not regularly circular and the opening position is not at the lowest point of the arcs, it is difficult to ensure that the opening of the can body is accurately positioned and pressed at the axis position of a welding fixture

Disclosure of Invention

The utility model aims to provide an open tank lifting tool, which is used for positioning tank workpieces with different lengths through servo driving, and compacting the tank on a lifting tool positioning roller by adopting an air cylinder so as to finish lifting the open tank after rolling; the opening size of the tank body is adjusted by adopting the servo driving opening expanding mechanism so as to finish lifting the tank body out of the upper part of the rolling machine roller, and the tank body is matched with the opening position adjusting assembly to finish loading and positioning of an opening tank body workpiece on longitudinal seam welding equipment, and the opening position of the tank body is adjusted by adopting the servo driving opening position adjusting assembly so as to ensure that the opening of the opening offset tank body is positioned and pressed at the axis position of the welding fixture, thereby reducing the labor intensity of manual adjustment, reducing the cost, improving the production efficiency and the processing quality and solving the technical problems existing in the prior art.

The technical scheme of the utility model is as follows:

an open tank body hoisting tool comprises a longitudinal beam assembly, a first clamp assembly and a second clamp assembly, wherein the first clamp assembly and the second clamp assembly with the same structure are respectively mounted below two ends of the longitudinal beam assembly; the longitudinal beam assembly comprises a longitudinal beam and a longitudinal linear guide rail, and the clamp assembly I and the clamp assembly II slide on the longitudinal linear guide rails at the two ends of the longitudinal beam; the clamp assembly I comprises a longitudinal slide plate assembly I, an opening position adjusting assembly I, a beam assembly I, an opening expansion assembly II, a tank body compressing device and a tank body supporting assembly, wherein the opening expansion assembly I and the opening expansion assembly II are symmetrically arranged at the lower part of the longitudinal slide plate assembly, the tank body compressing device is matched with the tank body supporting assembly and positioned between the opening expansion assembly I and the opening expansion assembly II, the longitudinal slide plate assembly I is arranged at the middle upper part of the beam assembly I and connected with the tank body compressing device, and the opening position adjusting assembly I is positioned at one side surface of the beam assembly;

the first middle cross beam of the first cross beam assembly is connected with the first middle slide plate support of the first longitudinal slide plate assembly, the first cross beam assembly and the first longitudinal slide plate assembly form a fixed structure, and relative movement or angular movement does not exist between the first cross beam assembly and the first longitudinal slide plate assembly; the longitudinal linear guide rail is connected with a first slide plate support in the first longitudinal slide plate assembly; the tank body pressing device is arranged on a first sliding plate support seat in the first longitudinal sliding plate assembly through a pressing seat; the longitudinal linear guide rail is connected with a transverse sliding plate I in the opening expansion assembly I; two groups of tank body supporting components are arranged below the beam component, a group of opening position adjusting components I are arranged in the beam component I, and driven chain wheels I of the opening position adjusting components I are arranged on supporting shafts of the tank body supporting components; and the other end of the longitudinal beam in the longitudinal beam assembly is symmetrically identical to the first clamp assembly in structure.

The longitudinal rack is arranged on a longitudinal beam of the longitudinal beam assembly and meshed with a longitudinal driving gear I in a longitudinal sliding plate assembly I, the longitudinal sliding plate assembly I is driven by a servo motor I, a precise planetary reducer I is driven, and an output shaft of the precise planetary reducer I is connected with the longitudinal driving gear I.

The first transverse beam assembly is arranged below the longitudinal sliding plate assembly, the first transverse beam is connected with the first transverse sliding plate in the first opening expansion assembly through two transverse linear guide rails, the first transverse rack is arranged on the first transverse beam and meshed with the first transverse driving gear in the first opening expansion assembly, the first opening expansion assembly is driven by the third servo motor, the third precise planetary reducer is driven, and the output shaft of the third precise planetary reducer is connected with the first transverse driving gear; the first transverse beam is connected with the second transverse sliding plate in the second opening expansion assembly through two transverse linear guide rails, the first transverse rack is arranged on the first transverse beam and meshed with the second transverse driving gear in the second opening expansion assembly, the second opening expansion assembly is driven by the fourth servo motor, the fourth precise planetary reducer is driven, and the output shaft of the fourth precise planetary reducer is connected with the second transverse driving gear.

The pressing seat in the tank body pressing device is arranged on a first sliding plate support in the first longitudinal sliding plate assembly or a second sliding plate support in the second longitudinal sliding plate assembly, and the guide plate, the first pin seat and the second pin seat are arranged on a first middle cross beam of the cross beam assembly or a second middle cross beam of the cross beam assembly; the compressing cylinder is arranged on the compressing seat, the front end of the cylinder rod of the compressing cylinder is provided with a hinge seat, the hinge hole of the hinge seat is perpendicular to the installation surface of the guide plate, the hinge shaft penetrates through the hinge hole of the hinge seat and the guide groove of the guide plate, and the hinge shaft can freely slide along the guide groove of the guide plate.

The tank body supporting component is arranged on the first beam or the second beam through a supporting seat, a second bearing and a fifth bearing are arranged in shaft holes at two ends of the supporting seat, the second bearing and the fifth bearing are used for connecting a supporting shaft to the supporting seat, a first supporting sleeve is arranged on the outer side of the fifth bearing, a first rubber cushion is fixed on the first supporting sleeve, a second steel core rubber wheel is arranged on the supporting shaft, the end face of the second steel core rubber wheel is abutted against the first rubber cushion, and the second steel core rubber wheel, the first supporting sleeve and the first rubber cushion can rotate along the axial lead of the supporting shaft.

The first transverse sliding plate in the first opening expansion assembly is connected with the first transverse linear guide rail in the first transverse beam assembly, is meshed with the first transverse rack on the first transverse beam through the first transverse driving gear, and is driven by the third servo motor to drive the third precision planetary reducer; the first expansion support is arranged on the first transverse sliding plate, the first expansion shaft is arranged in a shaft hole at the lower end of the first expansion support, the second support sleeve is abutted against an output shaft shoulder of the first expansion shaft, the second rubber cushion is fixed on the second support sleeve, the fourth steel core rubber wheel is sleeved on an output shaft of the first expansion shaft, a gland is arranged on one end face of the first expansion shaft, the fourth steel core rubber wheel is prevented from generating axial movement, and the second support sleeve, the second rubber cushion and the fourth steel core rubber wheel can rotate along the axial direction of the first expansion shaft.

The second transverse sliding plate in the opening expansion assembly is connected with the first transverse linear guide rail in the beam assembly, is meshed with the first transverse rack on the beam through the second transverse driving gear, and is driven by the fourth servo motor to drive the fourth precision planetary reducer; the second expansion support is arranged on the second transverse sliding plate, the second expansion shaft is arranged in the shaft hole at the lower end of the second expansion support, the third support sleeve is tightly abutted against the output shaft shoulder of the second expansion shaft, the third rubber cushion is fixed on the third support sleeve, the fifth steel core rubber wheel is sleeved on the output shaft of the second expansion shaft, the second end face of the second expansion shaft is provided with the second gland, the fifth steel core rubber wheel is prevented from generating axial movement, and the third support sleeve, the third rubber cushion and the fifth steel core rubber wheel can rotate along the axial direction of the second expansion shaft.

The utility model can respectively finish the positioning and clamping of the opening symmetrical tank body workpiece and the opening offset tank body workpiece.

The utility model has the positive effects that: positioning tank workpieces with different lengths through servo drive, and pressing the tank on a lifting tool positioning roller by adopting an air cylinder so as to finish lifting the open tank after rolling; the opening size of the tank body is adjusted by adopting the servo driving opening expanding mechanism so as to finish lifting the tank body out of the upper part of the rolling machine roller, and the opening size is matched with the opening position adjusting assembly to finish loading and positioning of an opening tank body workpiece on longitudinal seam welding equipment, and the opening position of the tank body is adjusted by adopting the servo driving opening position adjusting assembly so as to ensure that the opening of the opening offset tank body is positioned and clamped at the axis position of the welding fixture, thereby reducing the labor intensity of manual adjustment, reducing the cost and improving the production efficiency and the processing quality.

Drawings

FIG. 1 is a schematic view of an embodiment of the present utility model;

FIG. 2 is a schematic view of a clamp assembly according to an embodiment of the utility model

FIG. 3 is a schematic view of a clamp assembly according to an embodiment of the present utility model

FIG. 4 is a schematic illustration of a connection of a stringer assembly to a longitudinal sled assembly in accordance with an embodiment of the present utility model;

FIG. 5 is a schematic illustration of a cross beam assembly one and an opening expansion assembly one connection according to an embodiment of the present utility model;

FIG. 6 is a schematic diagram of a first cross beam assembly connected to a second opening expansion assembly according to an embodiment of the present utility model;

FIG. 7 is a schematic view of a tank pressing device according to an embodiment of the present utility model;

FIG. 8 is an enlarged view of a portion of a pinch roller according to an embodiment of the present utility model;

FIG. 9 is a block diagram of a drive train of an embodiment of an opening position adjustment assembly;

FIG. 10 is a schematic diagram of an embodiment of an opening position adjustment assembly;

FIG. 11 is a schematic view of a tensioning wheel assembly according to an embodiment of the present utility model;

FIG. 12 is a schematic view of a transition sprocket assembly according to an embodiment of the present utility model;

FIG. 13 is a schematic view of an opening expansion assembly according to an embodiment of the present utility model;

FIG. 14 is a schematic view of an opening expansion assembly and an expansion roller according to an embodiment of the present utility model;

FIG. 15 is a schematic view of a second structure of an opening expansion assembly according to an embodiment of the present utility model;

FIG. 16 is a schematic view of a second expansion roller of the opening expansion assembly according to the embodiment of the present utility model;

FIG. 17 is a schematic diagram showing a step of lifting and opening adjustment of an opening symmetrical can according to an embodiment of the present utility model

FIG. 18 is a second schematic view illustrating the step of lifting and opening adjustment of the symmetrical can body according to the embodiment of the present utility model

FIG. 19 is a three-stage schematic view of the opening adjustment step of the symmetrical can body according to the embodiment of the utility model

FIG. 20 is a diagram showing a step of lifting and opening adjustment of an opening symmetrical can according to an embodiment of the present utility model

FIG. 21 is a schematic diagram showing a step of lifting and opening adjustment of an opening-biased can according to an embodiment of the present utility model

FIG. 22 is a second schematic diagram of the step of lifting and opening adjustment of the opening offset can according to the embodiment of the utility model

FIG. 23 is a third schematic view illustrating the step of lifting and opening adjustment of the opening-biased can according to the embodiment of the present utility model

FIG. 24 is a diagram illustrating a step four of lifting and opening adjustment of an open offset can according to an embodiment of the present utility model

In the figure: the three-axis mechanical arm 1, the longitudinal beam assembly 2, the first clamp assembly 3, the second clamp assembly 4, the first longitudinal slide assembly 5, the first opening position adjustment assembly 6, the first cross beam assembly 7, the first opening expansion assembly 8, the second opening expansion assembly 9, the can body pressing device 10, the can body supporting assembly 11, the second longitudinal slide assembly 12, the second opening position adjustment assembly 13, the second cross beam assembly 14, the third opening expansion assembly 15, the fourth opening expansion assembly 16, the opening symmetrical can body workpiece 17, the opening offset can body workpiece 18, the longitudinal beam 20, the first longitudinal driving gear 21, the longitudinal rack 22, the longitudinal linear guide 23, the first precise planetary reducer 24, the first servo motor 25, the first slide support 26, the first cross beam 31, the first transverse linear guide 32, the first transverse driving gear 33, the first transverse rack 34, the first transverse slide 35, the third precise planetary reducer 36, the third servo motor 37, the fourth opening symmetrical can body workpiece 17, the first opening offset can body the second transverse driving gear 38, the second transverse slide plate 39, the fourth precision planetary reducer 40, the fourth servo motor 41, the compression cylinder 53, the compression seat 54, the first compression rod 55, the first pin seat 56, the compression wheel bracket 57, the hinge seat 58, the hinge shaft 59, the guide plate 60, the second pin seat 61, the second compression rod 62, the first steel core rubber wheel 63, the compression bearing 64, the compression shaft 65, the first sprocket driving component 66, the first chain 67, the first tensioning wheel component 68, the first driven sprocket 69, the first transition sprocket component 70, the fifth bearing 72, the seventh servo motor 73, the seventh precision planetary reducer 74, the first speed reducer mounting seat 75, the first bearing 76, the first driving sprocket wheel 77, the first driving sprocket 78, the support seat 79, the second bearing 81, the support shaft 82, the first support sleeve 83, the first rubber pad 84, the second steel core rubber wheel 85, the first tensioning bolt 86, the first tensioning seat 87, the first locking nut 88, the first tensioning shaft 89, the first tensioning wheel 90, the fifth bearing 72, the fourth bearing, bearing three 91, driven sprocket seat one 92, bearing four 93, driven sprocket axle one 94, driven sprocket one 95, expansion axle one 126, support sleeve two 127, cushion two 128, steel core rubber wheel four 129, gland one 130, expansion support one 131, expansion support two 132, expansion axle two 133, support sleeve three 134, cushion three 135, steel core rubber wheel five 136, gland two 137, plate bending machine roller 150, welding equipment key hold-down mechanism 151.

Detailed Description

The utility model is further described by way of examples with reference to the accompanying drawings.

An open tank body hoisting tool comprises a longitudinal beam assembly 2, a clamp assembly I3 and a clamp assembly II 4, wherein the clamp assembly I3 and the clamp assembly II 4 with the same structure are respectively mounted below two ends of the longitudinal beam assembly 2; the longitudinal beam assembly 2 comprises a longitudinal beam 20 and a longitudinal linear guide rail 23, and the clamp assembly I3 and the clamp assembly II 4 slide on the longitudinal linear guide rails 23 at two ends of the longitudinal beam 20; the clamp assembly I3 comprises a longitudinal slide plate assembly I5, an opening position adjusting assembly I6, a beam assembly I7, an opening expansion assembly I8, an opening expansion assembly II 9, a tank body pressing device 10 and a tank body supporting assembly 11, wherein the opening expansion assembly I8 and the opening expansion assembly II 9 are symmetrically arranged at the lower part of the longitudinal slide plate assembly I5, the tank body pressing device 10 and the tank body supporting assembly 11 are matched and are positioned between the opening expansion assembly I8 and the opening expansion assembly II 9, the longitudinal slide plate assembly I5 is arranged at the middle upper part of the beam assembly I7 and connected with the tank body pressing device 10, and the opening position adjusting assembly I6 is positioned at the side surface of the beam assembly I7;

the first cross beam 31 in the first cross beam assembly 7 is connected with the first slide plate support 26 in the first longitudinal slide plate assembly 5, the first cross beam assembly 7 and the first longitudinal slide plate assembly 5 form a fixed structure, and no relative movement or angular movement exists between the first cross beam assembly 7 and the first longitudinal slide plate assembly 5; the longitudinal linear guide rail 23 is connected with a first slide support 26 in the first longitudinal slide assembly 5; the tank body pressing device 10 is arranged on a first slide plate support 26 in a first longitudinal slide plate assembly 5 through a pressing seat 54; the longitudinal linear guide rail 23 is connected with a transverse slide plate 35 in the opening expansion assembly 8; two groups of tank supporting components 11 are arranged below the first beam component 7, a group of first opening position adjusting components 6 are arranged in the first beam component 7, and driven chain wheels 69 of the first opening position adjusting components 6 are arranged on supporting shafts 82 of the tank supporting components 11; at the other end of the stringer 20 in the stringer assembly 2, the structure of the clamp assembly two 4 is symmetrically identical to the clamp assembly one 3.

The longitudinal rack 22 is arranged on the longitudinal beam 20 of the longitudinal beam assembly 2 and meshed with the longitudinal driving gear 21 in the longitudinal slide plate assembly I5, the longitudinal slide plate assembly I5 is driven by the servo motor I25, the precise planetary reducer I24 is driven, and the output shaft of the precise planetary reducer I24 is connected with the longitudinal driving gear I21.

The first transverse beam assembly 7 is arranged below the first longitudinal slide plate assembly 5, the first transverse beam 31 is connected with a first transverse slide plate 35 in the first opening expansion assembly 8 through two transverse linear guide rails 32, a first transverse rack 34 is arranged on the first transverse beam 31 and meshed with a first transverse driving gear 33 in the first opening expansion assembly 8, the first opening expansion assembly 8 is driven by a third servo motor 37, a third precise planetary reducer 36 is driven, and an output shaft of the third precise planetary reducer 36 is connected with the first transverse driving gear 33; the first cross beam 31 is connected with a second transverse sliding plate 39 in the second opening expansion assembly 9 through two transverse linear guide rails 32, the first cross beam 31 is provided with a first transverse rack 34 which is meshed with a second transverse driving gear 38 in the second opening expansion assembly 9, the second opening expansion assembly 9 is driven by a fourth servo motor 41, a fourth precise planetary reducer 40 is driven, and an output shaft of the fourth precise planetary reducer 40 is connected with the second transverse driving gear 38.

The compressing seat 54 in the tank compressing device 10 is arranged on the first slide plate support 26 in the first longitudinal slide plate assembly 5 or the second slide plate support in the second longitudinal slide plate assembly 12, and the guide plate 60, the first pin seat 56 and the second pin seat 61 are arranged on the first beam 31 in the first beam assembly 7 or the second beam 14; the compressing cylinder 53 is installed on the compressing base 54, the hinge base 58 is installed at the front end of the cylinder rod of the compressing cylinder 53, the hinge hole of the hinge base 58 is perpendicular to the installation surface of the guide plate 60, the hinge shaft 59 penetrates through the hinge hole of the hinge base 58 and the guide groove of the guide plate 60, and the hinge shaft 59 can freely slide along the guide groove of the guide plate 60. The hinge ends of the first compression rod 55 and the second compression rod 62 are arranged in U-shaped grooves of the hinge seat 58, the hinge holes of the first compression rod 55 and the second compression rod 62 are arranged on the hinge shaft 59, the upper long groove of the first compression rod 55 can slide along the first pin seat 56, the upper long groove of the second compression rod 62 can slide along the second pin seat 61, the lower ends of the first compression rod 55 and the second compression rod 62 are provided with the pinch roller support 57, the shaft holes of the pinch roller support 57 are internally provided with the pinch roller 65, the two ends of the pinch roller 65 are provided with the pinch roller bearings 64, and the outer surfaces of the pinch roller bearings 64 are provided with the first steel core rubber wheel 63. When the cylinder rod of the compression cylinder 53 in the tank body compression device 10 is retracted from the extended state, the hinge seat 58 drives the hinge shaft 59 to move upwards along the guide groove of the guide plate 60, the hinge ends of the first 55 and the second 62 of the compression rods move upwards along with the hinge shaft 59, the first 55 of the compression rods moves upwards along with the hinge ends, the long groove on the first 55 of the compression rods slides upwards along the first 56 of the pin seat, the other side of the pin seat 56 of the sliding hinge point, the pressing wheel bracket 57 arranged on the first 55 of the compression rods moves downwards, the second 62 of the compression rods moves upwards along with the hinge ends, the long groove on the second 62 of the compression rods slides upwards along the second 61 of the pin seat, and the pressing wheel bracket 57 arranged on the second 62 of the compression rods moves downwards at the other side of the pin seat 61 of the sliding hinge point until the first 63 of the steel core rubber wheels on two sides are compressed on the outer wall of the tank body workpiece; when the cylinder rod extends from the retracted state, the hinge seat 58 drives the hinge shaft 59 to move downwards along the guide groove of the guide plate 60, the hinge ends of the first 55 and second 62 press rods move downwards along the hinge shaft 59, the first 55 position of the press rod moves downwards along with the hinge ends, the upper long groove of the first 55 press rod slides downwards along the first 56 press seat, the press wheel bracket 57 arranged on the first 55 press rod moves upwards at the other side of the first 56 press seat at the sliding hinge point, the second 62 position of the press rod moves downwards along the second 61 press rod along with the hinge ends, the upper long groove of the second 62 press rod slides downwards along the second 61 press wheel bracket 57 arranged on the second 62 press rod at the other side of the second 61 press point until the cylinder rod extends completely, and the clamping mechanism is in the open state at this time.

The first opening position adjusting assembly 6 consists of a first sprocket driving assembly 66, a first chain 67, a first tensioning wheel assembly 68, a first driven sprocket assembly 69 and a first transition sprocket assembly 70; the first sprocket drive assembly 66 is arranged on a first cross beam 31 in the first cross beam assembly 7 through a first speed reducer mounting seat 75, the first sprocket drive assembly 66 is driven by a seventh servo motor 73, a seventh precision planetary speed reducer 74 is driven, an output shaft of the seventh precision planetary speed reducer 74 is connected with a first driving sprocket shaft 77, the first driving sprocket shaft 77 is fixed on the first speed reducer mounting seat 75 through a first bearing 76, and a first driving sprocket 78 is arranged at the output end of the first driving sprocket shaft 77; the tensioning wheel assembly I68 is fixed on the beam I31 through the tensioning seat I87, the tensioning wheel I90 is arranged on the tensioning shaft I89 through the bearing III 91, the tensioning wheel I90 can rotate along with the bearing III 91 during chain transmission, the tensioning shaft I89 is arranged in a guide groove of the beam assembly I7, the tensioning shaft I89 is connected with the tensioning bolt I86 through two end adjusting threaded holes, the tensioning bolt I86 is arranged on the tensioning seat I87, the tensioning shaft I89 can slide up and down along the guide groove on the beam I31 along with the tensioning bolt I86, and after adjustment, the tensioning bolt I86 is locked by the locking nut I88; the first driven sprocket 69 is fixed on a first support shaft 82 of the tank support assembly 11, the first transition sprocket assembly 70 is fixed on the first cross beam 31 through a first driven sprocket seat 92, the first driven sprocket seat 92 is connected with a first driven sprocket shaft 94 through a fourth bearing 93, and a first driven sprocket 95 is arranged at the output end of the first driven sprocket shaft 94; the first chain 67 is wound around the first driving sprocket 78, the first driven sprocket 95, the first two driven sprockets 69 and the first two tensioning wheels 90, and the first chain 67 can be tensioned by adjusting the first tensioning bolts 86.

The tank body supporting assembly 11 is mounted on the first beam 31 or the second beam through the supporting seat 79, a second bearing 81 and a fifth bearing 72 are mounted in shaft holes at two ends of the supporting seat 79, the second bearing 81 and the fifth bearing 72 connect the supporting shaft 82 to the supporting seat 79, a first supporting sleeve 83 is mounted on the outer side of the fifth bearing 72, a first rubber cushion 84 is fixed on the first supporting sleeve 83, a second steel core rubber wheel 85 is mounted on the supporting shaft 82, the end face of the second steel core rubber wheel is abutted against the first rubber cushion 84, and the second steel core rubber wheel 85, the first supporting sleeve 83 and the first rubber cushion 84 can rotate along the axial lead of the supporting shaft 82.

A transverse sliding plate I35 in the opening expansion assembly I8 is connected with a transverse linear guide rail 32 in the transverse beam assembly I7, is meshed with a transverse rack I34 on the transverse beam I31 through a transverse driving gear I33, and is driven by a servo motor III 37 to drive a precise planetary reducer III 36; the first expansion support 131 is arranged on the first transverse slide plate 35, the first expansion shaft 126 is arranged in a shaft hole at the lower end of the first expansion support 131, the second support sleeve 127 is abutted against the output shaft shoulder of the first expansion shaft 126, the second rubber cushion 128 is fixed on the second support sleeve 127, the fourth steel core rubber wheel 129 is sleeved on the output shaft of the first expansion shaft 126, the first end face of the first expansion shaft 126 is provided with the first gland 130, the fourth steel core rubber wheel 129 is prevented from generating axial movement, and the second support sleeve 127, the second rubber cushion 128 and the fourth steel core rubber wheel 129 can rotate along the axial direction of the first expansion shaft 126.

A transverse sliding plate II 39 in the opening expansion assembly II 9 is connected with a transverse linear guide rail 32 in the transverse beam assembly I7, is meshed with a transverse rack I34 on the transverse beam I31 through a transverse driving gear II 38, and is driven by a servo motor IV 41 to drive a precise planetary reducer IV 40; the second expansion support 132 is arranged on the second transverse slide 39, the second expansion shaft 133 is arranged in the shaft hole at the lower end of the second expansion support 132, the third support sleeve 134 is tightly supported on the output shaft shoulder of the second expansion shaft 133, the third rubber cushion 135 is fixed on the third support sleeve 134, the fifth steel core rubber wheel 136 is sleeved on the output shaft of the second expansion shaft 133, the second gland 137 is arranged on the end face of the second expansion shaft 133, the fifth steel core rubber wheel 136 is prevented from generating axial movement, and the third support sleeve 134, the third rubber cushion 135 and the fifth steel core rubber wheel 136 can axially rotate along the second expansion shaft 133.

In the embodiment, a first slide plate support 26 in the first clamp assembly 3 is mounted on a longitudinal linear guide rail 23 in the longitudinal beam assembly 2, a first longitudinal driving gear 21 in the first clamp assembly 3 and a longitudinal rack 22 in the longitudinal beam assembly 2 form a gear-rack transmission pair, the first clamp assembly 3 is driven by a first servo motor 25 and is transmitted to the first longitudinal driving gear 21 through a first precise planetary reducer 24, and the first clamp assembly 3 can move from the end part of the longitudinal beam 20 to the middle along the longitudinal linear guide rail 23 or move from the middle of the longitudinal beam 20 to the end part along the longitudinal linear guide rail 23 under the action of the gear-rack transmission pair.

The first transverse slide plate 35 in the first opening expansion assembly 8 is connected with the transverse linear guide rail 32 in the first transverse beam assembly 7, the first transverse driving gear 33 in the first opening expansion assembly 8 and the first transverse rack 34 in the first transverse beam assembly 7 form a gear-rack transmission pair, the first opening expansion assembly 8 is driven by the third servo motor 37 to transmit power to the first transverse driving gear 33 through the third precise planetary reducer 36, and the first opening expansion assembly 8 can move from the end part of the first transverse beam 31 to the middle along the transverse linear guide rail 32 or move from the middle of the first transverse beam 31 to the end part along the transverse linear guide rail 32 under the action of the gear-rack transmission pair; the first expansion bracket 131 is arranged below the first transverse sliding plate 35, the first expansion shaft 126 is arranged in the shaft hole of the first expansion bracket 131, the second support sleeve 127 is arranged on the first expansion shaft 126, the end face of the second support sleeve is abutted against the end face of the shaft shoulder of the first expansion shaft 126, the second support sleeve 127 is in clearance fit with the first expansion shaft 126, and the second support sleeve 127 can freely rotate on the first expansion shaft 126; the second rubber cushion 128 is arranged on the end surface of the second support sleeve 127, the fourth steel core rubber wheel 129 is arranged on the first expansion shaft 126, the fourth steel core rubber wheel 129 is in clearance fit with the first expansion shaft 126, and the fourth steel core rubber wheel 129 can rotate on the first expansion shaft 126; the first gland 130 is tightly pressed on the end face of the first expansion shaft 126 and a small gap is reserved between the first gland 130 and the end face of the fourth steel core rubber wheel 129, and the first gland 130 can prevent the fourth steel core rubber wheel 129 from falling off from the first expansion shaft 126 without affecting the rotation of the fourth steel core rubber wheel.

The second transverse sliding plate 39 in the second opening expansion assembly 9 is connected with the transverse linear guide rail 32 in the first transverse beam assembly 7, the second transverse driving gear 38 in the second opening expansion assembly 9 and the first transverse rack 34 in the first transverse beam assembly 7 form a gear-rack transmission pair, the second opening expansion assembly 9 is driven by the fourth servo motor 41 and is transmitted to the second transverse driving gear 38 through the fourth precise planetary reducer 40, and the second opening expansion assembly 9 can move from the end part of the first transverse beam 31 to the middle along the transverse linear guide rail 32 or move from the middle of the first transverse beam 31 to the end part along the transverse linear guide rail 32 under the action of the gear-rack transmission pair; the second expansion bracket 132 is arranged below the second transverse sliding plate 39, the second expansion shaft 133 is arranged in the shaft hole of the second expansion bracket 132, the third support sleeve 134 is arranged on the second expansion shaft 133, the end surface of the third support sleeve is abutted against the end surface of the shoulder of the second expansion shaft 133, the third support sleeve 134 is in clearance fit with the second expansion shaft 133, and the third support sleeve 134 can freely rotate on the second expansion shaft 133; the rubber cushion III 135 is arranged on the end surface of the supporting sleeve III 134, the steel core rubber wheel V136 is arranged on the expansion shaft II 133, the steel core rubber wheel V136 is in clearance fit with the expansion shaft II 133, and the steel core rubber wheel V136 can rotate on the expansion shaft II 133; the second pressing cover 137 is tightly pressed on the end face of the second expansion shaft 133, a tiny gap is reserved between the second pressing cover 137 and the end face of the fifth steel core rubber wheel 136, and the second pressing cover 137 can prevent the fifth steel core rubber wheel 136 from falling off the second expansion shaft 133 without affecting rotation of the fifth steel core rubber wheel.

The tank body supporting component 11 is arranged below the first beam component 7, the supporting seat 79 in the tank body supporting component 11 is connected with the first beam component 31, the tank body supporting component 11 and the first beam component 7 form a fixed structure, no relative movement or angular movement exists between the tank body supporting component 11 and the first beam component 7, in the first clamp component 3, two groups of tank body supporting components 11 are arranged below the first beam component 7, and when the tank body is hoisted, two-point support is formed for the tank body workpiece. The bearing II 81 and the bearing V72 are arranged in the shaft hole of the supporting seat 79, the supporting shaft 82 is arranged on the bearing II 81 and the bearing V72, the driven sprocket I69 is arranged between the bearing II 81 and the bearing V72 on the supporting shaft 82, the driven sprocket I69 can drive the supporting shaft 82 to do clockwise or anticlockwise rotation under the driving of the servo motor seven 73 in the opening position adjusting assembly I6, the supporting sleeve I83 is arranged on the outer side of the bearing V72, the rubber cushion I84 is fixed on the supporting sleeve I83, the steel core rubber wheel II 85 is arranged on the supporting shaft 82, the end face of the steel core rubber wheel II 85 is abutted against the rubber cushion I84, the supporting sleeve I83, the rubber cushion I84 and the supporting shaft 82 form fixed connection, and the steel core rubber wheel II, the supporting sleeve I83 and the rubber cushion I84 can rotate along the axis of the supporting shaft 82. When the tank workpiece is installed, the arc surface in the open tank body is placed on the second steel core rubber wheels 85 and tangent to the outer cylindrical surface of the second steel core rubber wheels 85, and the end surface of the tank body is propped against the first rubber cushion 84.

The first opening position adjusting assembly 6 comprises a first sprocket driving assembly 66, a first chain 67, a first tensioning wheel assembly 68, a first driven sprocket 69 and a first transition sprocket assembly 70. The first sprocket driving component 66 in the first opening position adjusting component 6 is arranged on the first beam 31 through the first speed reducer mounting seat 75, the first sprocket driving component 66 is driven by the seventh servo motor 73, the seventh precision planetary speed reducer 74 is driven, the output end of the seventh precision planetary speed reducer 74 is connected with the first driving sprocket shaft 77, the first driving sprocket shaft 77 is restrained in the shaft hole of the first speed reducer mounting seat 75 through the first bearing 76, the first driving sprocket shaft 77 is provided with the first driving sprocket 78, the seventh servo motor 73 transmits power to the first driving sprocket 78 through the seventh precision planetary speed reducer 74 and the first driving sprocket shaft 77, the first driving sprocket 78 can be driven to rotate clockwise or anticlockwise, the first transition sprocket component 70 is arranged on the first beam 31 through the first driving sprocket seat 92, the fourth bearing 93 is arranged in the shaft hole of the first driving sprocket seat 92, the fourth bearing 93 restrains the first driving sprocket shaft 94 in the shaft hole of the first driving sprocket seat 92, the first driving sprocket shaft 94 is provided with the first driving sprocket 95, and the first driving sprocket 95 can rotate clockwise or anticlockwise under external driving. The tensioning wheel assembly I68 is connected with the cross beam I31 through a tensioning seat I87, a tensioning bolt I86 is installed in a threaded hole in the tensioning seat I87, an end shaft groove of the tensioning bolt I86 is clamped into a groove hole of a tensioning shaft I89, a tensioning wheel I90 is installed on the tensioning shaft I89 through a bearing III 91, the extension length of the tensioning bolt I86 is adjusted, the tensioning shaft I89 is lifted along with the tensioning bolt I86, so that the tensioning wheel I90 is driven to tension the chain I67, and after the chain I67 is tensioned, a locking nut I88 is locked. The driven sprocket one 69 is mounted on the support shaft 82 of the tank support assembly 11; the first chain 67 transmits the power of the servo motor seven 73 to the second steel core rubber wheel 85 in the tank body supporting assembly 11 through the first tensioning wheel 90 and the first driven chain wheel 95, and under the driving of the servo motor seven 73, the two groups of the second steel core rubber wheels 85 on the first clamp assembly 3 can rotate clockwise or anticlockwise

The pressing seat 54 in the tank pressing device 10 is mounted on the first slide support 26 in the first longitudinal slide assembly 5, and the first pin seat 56, the second pin seat 61 and the guide plate 60 in the tank pressing device 10 are mounted on the first beam 31 in the first beam assembly 7. The compressing cylinder 53 is installed on the compressing base 54, the hinge base 58 is installed at the front end of the cylinder rod of the compressing cylinder 53, the hinge hole of the hinge base 58 is perpendicular to the installation surface of the guide plate 60, the hinge shaft 59 penetrates through the hinge hole of the hinge base 58 and the guide groove of the guide plate 60, and the hinge shaft 59 can freely slide along the guide groove of the guide plate 60. The hinge ends of the first compression rod 55 and the second compression rod 62 are arranged in U-shaped grooves of the hinge seat 58, the hinge holes of the first compression rod 55 and the second compression rod 62 are arranged on the hinge shaft 59, the upper long groove of the first compression rod 55 can slide along the first pin seat 56, the upper long groove of the second compression rod 62 can slide along the second pin seat 61, the lower ends of the first compression rod 55 and the second compression rod 62 are provided with the pinch roller support 57, the shaft holes of the pinch roller support 57 are internally provided with the pinch roller 65, the two ends of the pinch roller 65 are provided with the pinch roller bearings 64, and the outer surfaces of the pinch roller bearings 64 are provided with the first steel core rubber wheel 63. When the cylinder rod of the compression cylinder 53 in the tank body compression device 10 is retracted from the extended state, the hinge seat 58 drives the hinge shaft 59 to move upwards along the guide groove of the guide plate 60, the hinge ends of the first 55 and the second 62 of the compression rods move upwards along with the hinge shaft 59, the first 55 of the compression rods moves upwards along with the hinge ends, the long groove on the first 55 of the compression rods slides upwards along the first 56 of the pin seat, the other side of the pin seat 56 of the sliding hinge point, the pressing wheel bracket 57 arranged on the first 55 of the compression rods moves downwards, the second 62 of the compression rods moves upwards along with the hinge ends, the long groove on the second 62 of the compression rods slides upwards along the second 61 of the pin seat, and the pressing wheel bracket 57 arranged on the second 62 of the compression rods moves downwards at the other side of the pin seat 61 of the sliding hinge point until the first 63 of the steel core rubber wheels on two sides are compressed on the outer wall of the tank body workpiece; when the cylinder rod extends from the retracted state, the hinge seat 58 drives the hinge shaft 59 to move downwards along the guide groove of the guide plate 60, the hinge ends of the first 55 and second 62 press rods move downwards along the hinge shaft 59, the first 55 position of the press rod moves downwards along with the hinge ends, the upper long groove of the first 55 press rod slides downwards along the first 56 press seat, the press wheel bracket 57 arranged on the first 55 press rod moves upwards at the other side of the first 56 press seat at the sliding hinge point, the second 62 position of the press rod moves downwards along the second 61 press rod along with the hinge ends, the upper long groove of the second 62 press rod slides downwards along the second 61 press wheel bracket 57 arranged on the second 62 press rod at the other side of the second 61 press point until the cylinder rod extends completely, and the clamping mechanism is in the open state at this time.

In the embodiment, the specific process flow during practical application is as follows:

(1) Hoisting and opening adjusting process flow of the opening symmetrical tank body workpiece 17:

step one: referring to fig. 17, a lifting tool is moved to an opening symmetrical tank workpiece 17 through a triaxial manipulator 1, a clamp assembly I3 and a clamp assembly II 4 respectively move inwards to lean against the end face of the opening symmetrical tank workpiece 17, a tank supporting assembly 11 is supported on the inner arc face of the opening symmetrical tank workpiece 17, and a tank pressing device 10 is pressed on the outer wall of the opening symmetrical tank workpiece 17;

step two: referring to fig. 18, the first opening expansion assembly 8 and the third opening expansion assembly 15 move outwards to be tightly attached to the inner wall of the workpiece 17 of the symmetrical tank body, the second opening expansion assembly 9 and the fourth opening expansion assembly 16 move to the other side to be tightly attached to the inner wall of the other side of the workpiece 17 of the symmetrical tank body, and then the two opening expansion assemblies respectively expand the tank body outwards until the opening of the tank body is larger than the diameter of the roller 150 of the plate bending machine;

step three: referring to fig. 19, the triaxial manipulator 1 moves the lifting tool to the welding station, and the vertical symmetry plane of the key pressing mechanism of the welding equipment is aligned with the center of the opening symmetrical tank workpiece 17 and is installed in the key pressing mechanism;

step four: referring to fig. 20, the first opening expansion assembly 8 and the third opening expansion assembly 15 move inwards to shrink the opening of the opening symmetry can body workpiece 17 until the opening edge of the opening symmetry can body workpiece 17 is positioned at the welding equipment positioning block, the key pressing mechanism a side pressure finger presses the opening side inner wall of the opening symmetry can body workpiece 17, then the second opening expansion assembly 9 and the fourth opening expansion assembly 16 move inwards to shrink the opening of the opening symmetry can body workpiece 17 continuously to be closed, the key pressing mechanism b side pressure finger presses the opening side wall of the opening symmetry can body workpiece 17 to weld a longitudinal seam, the post-welding lifting tool maintains the state, and the opening symmetry can body workpiece 17 is moved out of the welding equipment to a blanking station by the triaxial manipulator 1.

(2) The process flow of hoisting and opening adjustment of the opening offset tank workpiece 18 comprises the following steps:

step one: referring to fig. 21, a lifting tool is moved to an opening offset tank workpiece 18 through a triaxial manipulator 1, a clamp assembly I3 and a clamp assembly II 4 respectively move inwards to lean against the end face of the opening offset tank workpiece 18, a tank supporting assembly 11 is supported on the inner arc face of the opening offset tank workpiece 18, and a tank pressing device 10 is pressed on the outer wall of the opening offset tank workpiece 18;

step two: referring to fig. 22, the first opening expansion assembly 8 and the third opening expansion assembly 15 move outwards to be tightly attached to the inner wall of the opening offset tank workpiece 18, the second opening expansion assembly 9 and the fourth opening expansion assembly 16 move to the other side to be tightly attached to the inner wall of the other side of the opening offset tank workpiece 18, and then the two assemblies expand the tank outwards respectively until the opening of the tank is larger than the diameter of the rolling machine roller 150;

step three: referring to fig. 23, the triaxial manipulator 1 moves the lifting tool to a welding station, the first opening position adjusting assembly 6 and the second opening position adjusting assembly 13 are started, the opening offset tank workpiece 18 is rotated by a certain angle until the two sides of the opening offset tank workpiece 18 are at the same height relative to the positioning surface of the key pressing mechanism 151 of the welding equipment, and the opening center of the opening offset tank workpiece 18 is aligned with the vertical symmetrical surface of the key pressing mechanism 151 of the welding equipment and is arranged in the key pressing mechanism;

step four: referring to fig. 24, the first opening expansion assembly 8 and the third opening expansion assembly 15 move inwards to shrink the opening of the opening offset tank workpiece 18 until the opening edge of the opening offset tank workpiece 18 is positioned at the welding equipment positioning block, the key pressing mechanism a side pressing finger presses the opening side inner wall of the opening offset tank workpiece 18, then the second opening expansion assembly 9 and the fourth opening expansion assembly 16 move inwards to shrink the opening of the opening offset tank workpiece 18 until the opening is closed, the key pressing mechanism b side pressing finger presses the opening side inner wall of the opening offset tank workpiece 18, the longitudinal joint is welded, the post-welding lifting tool maintains the state, and the opening offset tank workpiece 18 is moved out of the welding equipment to the blanking station by the triaxial manipulator 1.

Claims (5)

1. An open tank body lifts by crane frock, its characterized in that: the clamping device comprises a longitudinal beam assembly (2), a first clamp assembly (3) and a second clamp assembly (4), wherein the first clamp assembly (3) and the second clamp assembly (4) with the same structure are respectively mounted below two ends of the longitudinal beam assembly (2); the longitudinal beam assembly (2) comprises a longitudinal beam (20) and a longitudinal linear guide rail (23), and the clamp assembly I (3) and the clamp assembly II (4) slide on the longitudinal linear guide rails (23) at two ends of the longitudinal beam (20); the clamp assembly I (3) comprises a longitudinal slide plate assembly I (5), an opening position adjusting assembly I (6), a beam assembly I (7), an opening expansion assembly I (8), an opening expansion assembly II (9), a tank body pressing device (10) and a tank body supporting assembly (11), wherein the opening expansion assembly I (8) and the opening expansion assembly II (9) are symmetrically arranged at the lower part of the longitudinal slide plate assembly I (5), the tank body pressing device (10) is matched with the tank body supporting assembly (11) and positioned between the opening expansion assembly I (8) and the opening expansion assembly II (9), the longitudinal slide plate assembly I (5) is arranged at the upper middle part of the beam assembly I (7) and connected with the tank body pressing device (10), and the opening position adjusting assembly I (6) is positioned at the side surface of the beam assembly I (7);

the first transverse beam (31) in the first transverse beam assembly (7) is connected with the first sliding plate support (26) in the first longitudinal sliding plate assembly (5), the first transverse beam assembly (7) and the first longitudinal sliding plate assembly (5) form a fixed structure, and no relative movement or angular movement exists between the first transverse beam assembly and the first longitudinal sliding plate assembly; the longitudinal linear guide rail (23) is connected with a first slide support (26) in the first longitudinal slide assembly (5); the tank body pressing device (10) is arranged on a first slide plate support (26) in a first longitudinal slide plate assembly (5) through a pressing seat (54); the longitudinal linear guide rail (23) is connected with a transverse slide plate I (35) in the opening expansion assembly I (8); two groups of tank body supporting components (11) are arranged below the first beam component (7), a group of opening position adjusting components (6) are arranged in the first beam component (7), and driven chain wheels (69) of the opening position adjusting components (6) are arranged on supporting shafts (82) of the tank body supporting components (11); at the other end of the longitudinal beam (20) in the longitudinal beam assembly (2), the structure of the clamp assembly II (4) is symmetrically identical with that of the clamp assembly I (3).

2. The open tank lifting tooling of claim 1, wherein: a longitudinal rack (22) is arranged on a longitudinal beam (20) of the longitudinal beam assembly (2) and meshed with a longitudinal driving gear I (21) in a longitudinal sliding plate assembly I (5), the longitudinal sliding plate assembly I (5) is driven by a servo motor I (25), a precise planetary reducer I (24) is driven, and an output shaft of the precise planetary reducer I (24) is connected with the longitudinal driving gear I (21).

3. An open tank lifting tooling according to claim 1 or 2, characterized in that: the first transverse beam assembly (7) is arranged below the first longitudinal slide plate assembly (5), the first transverse beam (31) is connected with a first transverse slide plate (35) in the first opening expansion assembly (8) through two transverse linear guide rails (32), a first transverse rack (34) is arranged on the first transverse beam (31) and meshed with a first transverse driving gear (33) in the first opening expansion assembly (8), the first opening expansion assembly (8) is driven by a third servo motor (37), a third precise planetary reducer (36) is driven, and an output shaft of the third precise planetary reducer (36) is connected with the first transverse driving gear (33); the first transverse beam (31) is connected with the second transverse sliding plate (39) in the second opening expansion assembly (9) through two transverse linear guide rails (32), the first transverse rack (34) is arranged on the first transverse beam (31) and meshed with the second transverse driving gear (38) in the second opening expansion assembly (9), the second opening expansion assembly (9) is driven by the fourth servo motor (41), the fourth precise planetary reducer (40) is driven, and an output shaft of the fourth precise planetary reducer (40) is connected with the second transverse driving gear (38).

4. An open tank lifting tooling according to claim 1 or 2, characterized in that: the pressing seat (54) in the tank body pressing device (10) is arranged on a first sliding plate support (26) in a first longitudinal sliding plate assembly (5) or a second sliding plate support in a second longitudinal sliding plate assembly (12), and the guide plate (60), the first pin seat (56) and the second pin seat (61) are arranged on a first beam (31) in a first beam assembly (7) or a second beam in a second beam assembly (14); the compressing cylinder (53) is arranged on the compressing seat (54), the hinge seat (58) is arranged at the front end of a cylinder rod of the compressing cylinder (53), the hinge hole of the hinge seat (58) is perpendicular to the installation surface of the guide plate (60), the hinge shaft (59) penetrates through the hinge hole of the hinge seat (58) and the guide groove of the guide plate (60), and the hinge shaft (59) can freely slide along the guide groove of the guide plate (60).

5. An open tank lifting tooling according to claim 1 or 2, characterized in that: tank body supporting component (11) is installed on crossbeam one (31) or crossbeam two through supporting seat (79), install bearing two (81) and bearing five (72) in supporting seat (79) both ends shaft hole, bearing two (81) and bearing five (72) are connected supporting shaft (82) to supporting seat (79), supporting sleeve one (83) is installed in bearing five (72) outside, cushion one (84) is fixed on supporting sleeve one (83), steel core rubber wheel two (85) are installed on supporting shaft (82), its terminal surface leans on cushion one (84), steel core rubber wheel two (85), supporting sleeve one (83) and cushion one (84) can carry out the gyration along its axial lead along supporting shaft (82).

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