Auxiliary positioning device for welding of marine metal structural parts

Abstract

The invention provides an auxiliary positioning device for welding a marine metal structural member, belongs to the technical field of clamp equipment, and aims to solve the problem that when a tubular metal member of a ship body is positioned and clamped when being welded by using a clamping plate type positioning device, the port of the tubular metal member is uneven, so that the clamping is unstable, and the welding processing quality is influenced. Comprising a base, a two-way screw rod, a moving block, a mounting plate, a rotating motor, a positioning calibration cylinder and the like, a top plate of the base is provided with a limiting groove, a hydraulic lifting seat and an auxiliary supporting plate, the outer wall of the positioning calibration cylinder is provided with a tooth groove, and the positioning calibration cylinder is matched with a driving gear and a stepping motor on the mounting plate to rotate; the centering assembly comprises a U-shaped seat, a deflection rod, a T-shaped rod and the like; during work, the tubular metal component of the ship body is placed on the auxiliary supporting plate, automatic centering clamping of the component is achieved through cooperative operation of all the components, the welding quality and stability are guaranteed, and the reliability and accuracy of welding operation of the metal structural component for the ship are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of fixture equipment, and more specifically, to an auxiliary positioning device for welding marine metal structural parts. Background Art

[0002] Marine metal structural parts refer to various metal components used in shipbuilding and repair. Due to the large size of the hull, it is generally disassembled into multiple parts for welding and processing respectively and then assembled. When welding and processing each part of the hull, an auxiliary positioning device is required to position it to ensure the stability of the hull part processing.

[0003] Existing positioning devices generally have a clamping plate structure, which uses clamping plates to clamp metal parts for welding. For example, the patent with publication number CN116713670A discloses an auxiliary positioning device for welding power hardware parts, including a machine tool. The machine tool is a U-shaped column structure with an upward opening. On one side inner wall of the upper part of the machine tool, there is a main rotation mechanism for fixing the copper parts of the copper-aluminum nose of the power hardware. On the other side inner wall of the upper part of the machine tool, there is a secondary rotation mechanism for fixing the aluminum parts of the copper-aluminum nose of the power hardware. A feeding mechanism for feeding is arranged on the outer wall of the main rotation mechanism. By arranging a number of copper-aluminum part rotation jigs on the surfaces of the main rotation base and the secondary rotation mechanism, multiple parts can be welded at one time. By driving the driving gear to drive the driven gear to rotate, and the gear two meshes with the aluminum part rotation jig and the driven gear, it can be realized that one reduction motor can drive all the jigs to rotate. However, when clamping and welding the tubular metal components of the hull, due to the uneven port of the tubular metal components, the clamping is unstable, which affects the welding quality of the hull metal components.

[0004] Therefore, an auxiliary positioning device for welding marine metal structural parts is introduced. Summary of the Invention

[0005] The purpose of the present invention is to provide an auxiliary positioning device for welding marine metal structural parts, aiming to solve the problem that when the tubular metal components of the hull are positioned and clamped by a clamping plate type positioning device for welding, the uneven port of the tubular metal components will cause unstable clamping and affect the welding quality, as described in the above background art.

[0006] To achieve the above-mentioned purpose, the present invention provides the following technical solutions: an auxiliary positioning device for welding marine metal structural parts, comprising a base and limiting grooves extending through both sides of the top plate of the base, a bidirectional screw rod movably arranged between the side plates at the bottom of the base, moving blocks are respectively threadedly sleeved on the outer walls at both ends of the bidirectional screw rod, and the top of the moving block extends to the top of the base through the limiting groove, a mounting plate is fixedly connected to the top of the moving block, a positioning calibration cylinder is rotatably connected to the side wall opposite to the mounting plate, a tooth groove is machined on the outer wall of one side of the fixed end of the positioning calibration cylinder, a driving gear meshing with the tooth groove is movably arranged on the side wall of the mounting plate below the positioning calibration cylinder, and a centering component is fixedly connected to the inner wall of the positioning calibration cylinder at even intervals;

[0007] The centering assembly includes a U-shaped seat fixedly connected to the inner wall of the positioning and calibration cylinder at even intervals, a deflection rod is movably connected between the inner wall of the U-shaped seat away from the port of the positioning and calibration cylinder, and a T-shaped rod is movably arranged between the inner walls of the other end of the U-shaped seat, and guide grooves are respectively provided on the side walls at both ends of the U-shaped seat outside the deflection rod, and the top rod of the T-shaped rod movably engages with the guide groove, and the bottom of the deflection rod is provided with a U-shaped groove, and a pin is provided through the overlapping part after the U-shaped groove and the lower end of the T-shaped rod are engaged with each other, and the end of the pin is fixedly connected to the U-shaped plate, and the bottom of the U-shaped plate is fixedly connected to a clamping rod, and reset springs connected to the deflection rod and the side walls of the T-shaped rod are respectively fixedly connected to the outer walls on both sides of the clamping rod, and an extrusion wheel is movably arranged at the bottom of the clamping rod, and the two ends of the top rod of the T-shaped rod outside the guide groove are respectively movably connected with pull rods, and a cross rod is movably connected between the side walls at the end of the pull rod, and the top of the cross rod is movably connected to the inner wall of the positioning and calibration cylinder.

[0008] Furthermore, the deflection rod, T-shaped rod and clamping rod are arranged in a Y shape, and when the reset spring maintains a normal relaxation state, the T-shaped rod top rod is located at the end of the guide groove away from the deflection rod.

[0009] Furthermore, when the reset spring maintains a normal relaxed state, the cross-shaped rod is arranged in an inclined state, and the inclined lower end of the vertical rod of the cross-shaped rod faces the port of the positioning calibration cylinder. At this time, the vertical rods of all the cross-shaped rods in the positioning calibration cylinder form a conical cylindrical structure.

[0010] Furthermore, the extrusion wheel includes an intermediate column movably connected to the bottom of the clamping rod and a flexible shell coaxially fixedly connected to the outer wall of the intermediate column, elastic air bags are evenly spaced and fixedly connected to the inner wall of the flexible shell, air inlet holes connected to the elastic air bags are evenly opened on the outer wall of the flexible shell, air outlet valve mouths are respectively fixedly connected to the outer walls on both sides of the elastic air bags, a fixing plate is fixedly connected to the end of the elastic air bag, mounting grooves are respectively opened on the outer wall of the intermediate column corresponding to the fixing plate, and a spring rod is fixedly connected between the inner wall of the mounting groove and the outer wall of the fixing plate.

[0011] Furthermore, air outlet holes are evenly spaced apart on the outer wall of the flexible shell outside the elastic airbag, and when the flexible shell is not squeezed and deformed, the elastic airbag and the spring rod both maintain a normal expansion state.

[0012] Furthermore, a hydraulic lifting seat is fixedly connected to the middle of the top plate of the base, the limiting grooves are arranged symmetrically about the hydraulic lifting seat, and an auxiliary supporting plate is fixedly connected to the top of the hydraulic lifting seat.

[0013] Furthermore, a flap is movably connected to the outer wall on one side of the port of the positioning and calibration cylinder, and electric push rods are movably connected to the outer walls on both sides of the flap, and the ends of the electric push rods are movably connected to the outer walls at both ends of the positioning and calibration cylinder, and a first clamping member is fixedly connected to the outer wall of the flap at even intervals.

[0014] Furthermore, the first clamping member includes a fixing seat fixedly connected to the outer wall of the flip cover at even intervals and an elastic cloth pocket fixedly connected to the outer wall of the fixing seat, the inner cavity of the elastic cloth pocket is evenly spaced with a gourd-shaped mouth, a restraining rope is fixedly connected to the side wall of one end of the fixing seat, the other end of the restraining rope is spirally movable through the fixing seat and the rear end is fixedly connected to the side wall of the other end of the fixing seat, and the restraining rope is wrapped around the outside of the elastic cloth pocket.

[0015] Furthermore, second clamping members are respectively fixedly connected to the mounting plates on both sides above the positioning and calibration cylinder, the second clamping members are at the same horizontal height, and the second clamping members are symmetrically arranged with respect to the positioning and calibration cylinder.

[0016] Furthermore, the second clamping member includes a fixed plate fixedly connected to the corners on both sides of the top of the mounting plate, a U-shaped frame is fixedly connected to the middle of the outer wall of the fixed plate away from the positioning calibration cylinder, a driving motor is fixedly connected to the side wall of the U-shaped frame, a driving gear fixedly connected to the output end of the driving motor is movably provided on the outer wall at the middle of the fixed plate, four groups of identical positioning shafts are movably provided on the outer wall of the fixed plate outside the driving gear, and driven gears meshing with the driving gears are fixedly connected to the outer walls of the positioning shafts, the driven gears are arranged in a square shape, and the end of the positioning shaft extends through and extends to the other side of the fixed plate and is fixedly connected to an L-shaped rod, and a roller is movably sleeved on the outer wall of the end of the L-shaped rod.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] The invention provides an auxiliary positioning device for welding marine metal structural parts. The tubular metal component of the hull to be welded is placed on the top of the auxiliary support plate, and its two ends are respectively sleeved on the top of the positioning and calibration cylinder. The conical cylindrical structure formed by the cross-shaped rod vertical rod in the positioning and calibration cylinder is inserted into the component port. The rotating motor drives the bidirectional screw rod to rotate, driving the moving block to slide in the limit groove, so that the mounting plate pushes the positioning and calibration cylinder to move toward the component. The component pushes the cross-shaped rod to deflect. The cross-shaped rod pulls the T-shaped rod top rod through the pull rod to slide in the guide groove close to the deflection rod. Then, the deflection rod and the T-rod are controlled to push the clamping rod, so that the extrusion wheel at the end of the clamping rod fits the component and clamps it. At this time, the inclination of the cross rod in the positioning and calibration cylinder increases, and the conical cylindrical structure formed by its vertical rod still fits the edge of the component port and clamps it under the squeezing of the mounting plate, realizing automatic centering clamping, effectively solving the problem of unstable clamping due to uneven ports of tubular metal components of the hull affecting welding quality, realizing precise positioning and clamping of components, ensuring that the components are stable without displacement and shaking during welding, ensuring the welding processing quality, and improving the welding accuracy and reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 It is a schematic diagram of the base structure of the present invention when viewed from above;

[0021] Figure 3 It is a schematic diagram of the installation structure of the mounting plate, the positioning and calibration cylinder and the second clamping member of the present invention;

[0022] Figure 4 This is a schematic diagram of the closed state structure of the positioning calibration cylinder of the present invention;

[0023] Figure 5 This is a schematic structural diagram of the positioning calibration cylinder of the present invention in an open state;

[0024] Figure 6 It is a schematic diagram of the structure of the centering component of the present invention;

[0025] Figure 7 is a cross-sectional view of the extrusion wheel of the present invention;

[0026] Figure 8 It is a schematic structural diagram of the first clamping member of the present invention;

[0027] Fig. 9 is a cross-sectional view of the elastic cloth bag of the present invention;

[0028] Fig.10 This is a schematic structural diagram of the second clamping member of the present invention in the AB viewing angle state;

[0029] Fig.11 It is a schematic diagram of the viewing angle structure of the second clamping member BA of the present invention.

[0030] In the figure: 1, base; 11, limit groove; 12, two-way screw rod; 13, moving block; 14, mounting plate; 15, driving gear; 2, positioning calibration cylinder; 21, tooth groove; 22, centering assembly; 221, U-shaped seat; 2211, guide groove; 222, deflection rod; 223, T-shaped rod; 224, U-shaped plate; 225, clamping rod; 226, reset spring; 227, extrusion wheel; 2271, intermediate column; 2272, flexible shell; 2273, elastic airbag; 2274, air inlet; 2275, air outlet valve ; 2276, fixed plate; 2277, mounting groove; 2278, spring rod; 228, pull rod; 229, cross rod; 23, flip cover; 24, electric push rod; 25, first clamping member; 251, fixed seat; 252, elastic cloth bag; 253, gourd mouth; 254, binding rope; 3, second clamping member; 31, fixed plate; 32, U-shaped frame; 33, driving motor; 34, driving gear; 35, positioning shaft; 36, driven gear; 37, L-shaped rod; 38, roller; 4, hydraulic lifting seat; 5, auxiliary support plate. DETAILED DESCRIPTION

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

[0032] See also Figure 1-Figure 3 An auxiliary positioning device for welding marine metal structural parts includes a base 1, a bidirectional screw rod 12, a moving block 13, a mounting plate 14, a rotating motor and a positioning calibration cylinder 2. The base 1 is composed of a flat plate and pad rails fixedly connected to both sides of the bottom of the flat plate. The top plate of the base 1 is provided with limited slots 11 on both sides. A hydraulic lifting seat 4 is fixedly connected to the middle of the top plate of the base 1. The limited slots 11 are symmetrically arranged about the hydraulic lifting seat 4, and the top of the hydraulic lifting seat 4 is fixedly connected with an auxiliary support plate 5. The hydraulic lifting seat 4 is used to control the position of the auxiliary support plate 5. The height of the auxiliary support plate 5 is controlled to lift the middle section of the welded and clamped metal component, a bidirectional screw rod 12 is movably arranged between the side plates at the bottom of the base 1, a rotating motor is arranged on the outer wall of the side plate at one end of the bottom of the base 1, the bidirectional screw rod 12 is fixedly connected to the output end of the rotating motor, and moving blocks 13 are respectively threadedly sleeved on the outer walls at both ends of the bidirectional screw rod 12, and the top of the moving block 13 extends to the top of the base 1 through the limiting groove 11, and the top of the moving block 13 is fixedly connected to the mounting plate 14, and the positioning calibration cylinder 2 is rotatably connected to the side wall opposite to the mounting plate 14.

[0033] In order to solve the problem that the uneven ends of the tubular metal components of the hull will lead to unstable clamping and affect the welding quality when the clamping device is used for welding, please refer to Figure 1-Figure 7 , provide the following preferred technical solutions:

[0034] A tooth groove 21 is processed on the outer wall of one side of the fixed end of the positioning calibration cylinder 2, and a driving gear 15 meshing with the tooth groove 21 is movably arranged on the side wall of the mounting plate 14 below the positioning calibration cylinder 2. A stepper motor is fixedly connected to the outer wall of the mounting plate 14 away from the driving gear 15. The drive shaft of the stepper motor is connected to the driving gear 15 to drive the positioning calibration cylinder 2 to rotate. The stepper motor is a forward and reverse motor with a maximum travel of one circle. Centering components 22 are evenly spaced and fixedly connected to the inner wall of the positioning calibration cylinder 2;

[0035] The centering assembly 22 includes a U-shaped seat 221 fixedly connected to the inner wall of the positioning calibration cylinder 2 at uniform intervals, a deflection rod 222 is movably connected between the inner walls of the U-shaped seat 221 away from the port of the positioning calibration cylinder 2, and a T-shaped rod 223 is movably arranged between the inner walls of the other end of the U-shaped seat 221, and guide grooves 2211 are respectively provided on the side walls of the two ends of the U-shaped seat 221 outside the deflection rod 222, and the top rod of the T-shaped rod 223 is movably engaged with the guide groove 2211, and a U-shaped groove is provided at the bottom of the deflection rod 222, and the overlapping part penetrates the lower end of the U-shaped groove and the T-shaped rod 223 after the lower end is engaged. A pin is provided, and a U-shaped plate 224 is fixedly connected to the end of the pin, and a clamping rod 225 is fixedly connected to the bottom of the U-shaped plate 224. Reset springs 226 connected to the deflection rod 222 and the side walls of the T-shaped rod 223 are respectively fixedly connected on the outer walls on both sides of the clamping rod 225. An extrusion wheel 227 is movably provided at the bottom of the clamping rod 225, and the two ends of the top rod of the T-shaped rod 223 outside the guide groove 2211 are respectively movably connected to pull strips 228, and a cross rod 229 is movably connected between the side walls at the end of the pull strip 228, and the top of the cross rod 229 is movably connected to the inner wall of the positioning and calibration cylinder 2.

[0036] The deflection rod 222, T-rod 223 and clamping rod 225 are arranged in a Y shape. When the reset spring 226 maintains a normal relaxed state, the top rod of the T-rod 223 is located at the end of the guide groove 2211 away from the deflection rod 222; the cross-rod 229 is arranged in an inclined shape, and the inclined lower end of the vertical rod of the cross-rod 229 faces the port of the positioning calibration cylinder 2. At this time, the vertical rods of all the cross-rods 229 in the positioning calibration cylinder 2 form a conical cylindrical structure.

[0037] Specifically, the hull tubular metal component to be welded is placed on the top of the auxiliary support plate 5, so that its two ends are respectively sleeved on the top of the positioning calibration cylinder 2 suspended on both sides of the auxiliary support plate 5, and the vertical rods of all the cross-shaped rods 229 in the positioning calibration cylinder 2 form a conical cylindrical structure and are inserted into the port of the hull tubular metal component. The vertical rods of all the cross-shaped rods 229 are tilted to fit the edge of the port of the hull tubular metal component at the same time, and the rotating motor is controlled to drive the bidirectional screw rod 12 to drive the moving block 13 to slide in the limiting groove 11, so as to control the mounting plate 14 to push the positioning calibration cylinder 2 to move toward the hull tubular metal component, and the mounting plates 14 at both ends of the hull tubular metal component squeeze it toward the middle, and the hull tubular metal component in turn pushes the cross-shaped rod 229 to deflect. When the cross-shaped rod 229 is deflected, the pull rod 228 is used to pull the T-shaped rod 223 to slide in the guide groove 2211 close to the deflection rod 222, thereby controlling the deflection rod 222 and the T-shaped rod 223 to push the clamping rod 225 to move close to the hull tubular metal component, so that the extrusion wheel 227 at the end of the clamping rod 225 fits the hull tubular metal component to clamp it. At this time, the inclination of all cross-shaped rods 229 in the positioning and calibration cylinder 2 increases, and the vertical rod of the cross-shaped rod 229 forms a conical cylindrical structure, which still fits the port edge of the hull tubular metal component to clamp and support it under the squeezing of the mounting plate 14, thereby realizing automatic centering and clamping of the hull tubular metal component, and ensuring the clamping stability of the hull tubular metal component during the welding process.

[0038] In order to further promote the stable clamping of the tubular metal components of the hull, such as Figure 5-Figure 7 As shown, this embodiment provides the following technical solutions:

[0039] The extrusion wheel 227 includes an intermediate column 2271 movably connected to the bottom of the clamping rod 225 and a flexible shell 2272 coaxially fixedly connected to the outer wall of the intermediate column 2271, elastic air bags 2273 are evenly spaced and fixedly connected to the inner wall of the flexible shell 2272, and air inlet holes 2274 connected to the elastic air bags 2273 are evenly opened on the outer wall of the flexible shell 2272, and air outlet valve nozzles 2275 are respectively fixedly connected to the outer walls of both sides of the elastic air bags 2273, and a fixing plate 2276 is fixedly connected to the end of the elastic air bags 2273, and mounting grooves 2277 are respectively opened on the outer wall of the intermediate column 2271 corresponding to the fixing plate 2276, and a spring rod 2278 is fixedly connected between the inner wall of the mounting groove 2277 and the outer wall of the fixing plate 2276, and the spring rod 2278 is made of a material with high strength and not easily deformed.

[0040] Air outlet holes are evenly spaced apart on the outer wall of the flexible shell 2272 outside the elastic airbag 2273. When the flexible shell 2272 is not squeezed and deformed, the elastic airbag 2273 and the spring rod 2278 both maintain a normal relaxation state.

[0041] Specifically, when the extrusion wheel 227 is attached to the tubular metal component of the hull for clamping, the flexible shell 2272 is elastically extruded and deformed as it rolls, and the contact end of the flexible shell 2272 and the tubular metal component of the hull is flat and contacts the outer wall thereof. At this time, the air inlet 2274 of the flat part of the flexible shell 2272 is attached to the tubular metal component of the hull for sealing, and the deformed part of the flexible shell 2272 pushes the spring rod 2278 so that the elastic airbag 2273 between the two is compressed, and the elastic airbag 2273 compresses Then, the internal gas is discharged through the air outlet valve mouth 2275 to form a negative pressure. Under the action of negative pressure, the elastic airbag 2273 uses the air inlet hole 2274 to absorb the tubular metal component of the hull to increase its clamping stability. When the tubular metal component of the hull is pulled out of the positioning and calibration cylinder 2, the extrusion wheel 227 rolls along the outer wall of the tubular metal component of the hull. After the air inlet hole 2274 is separated from the outer wall of the tubular metal component of the hull, the elastic airbag 2273 can be restored by sucking air through the air inlet hole 2274 to wait for subsequent use. It is easy to use.

[0042] In order to facilitate the auxiliary positioning and clamping of irregular metal parts, such as Figure 1 , Figure 3-Figure 5 and Figure 8-Figure 9 As shown, this embodiment provides the following technical solutions:

[0043] A flap 23 is movably connected to the outer wall on one side of the port of the positioning and calibration cylinder 2, and electric push rods 24 are movably connected to the outer walls on both sides of the flap 23. The ends of the electric push rods 24 are movably connected to the outer walls at both ends of the positioning and calibration cylinder 2, and first clamping members 25 are fixedly connected to the outer wall of the flap 23 at uniform intervals. The electric push rods 24 control the opening and closing of the flap 23 to switch the positioning and calibration cylinder 2 to different clamping and positioning usage states for tubular metal components or irregular metal components of the hull.

[0044] The first clamping member 25 includes a fixing seat 251 fixedly connected to the outer wall of the flip cover 23 at uniform intervals and an elastic cloth bag 252 fixedly connected to the outer wall of the fixing seat 251. The elastic cloth bag 252 is filled with fine sand, and the amount of fine sand filled is two-thirds of the elastic cloth bag 252. The inner cavity of the elastic cloth bag 252 is evenly spaced with gourd-shaped mouths 253. A binding rope 254 is fixedly connected to the side wall of one end of the fixing seat 251. The other end of the binding rope 254 spirally moves through the fixing seat 251 and is fixedly connected to the side wall of the other end of the fixing seat 251, and the binding rope 254 is wrapped around the outside of the elastic cloth bag 252.

[0045] Specifically, when auxiliary positioning and clamping of irregular metal parts is required, the electric push rod 24 pulls the flip cover 23 to close the port of the positioning and calibration cylinder 2. At this time, the irregular metal parts are placed on the top of the auxiliary support plate 5. When the positioning and calibration cylinder 2 moves close to the irregular metal parts, the positioning and calibration cylinder 2 cooperates with the flip cover 23 to push the elastic cloth bag 252 filled with fine sand to clamp and contact the outer walls on both sides of the irregular metal parts. After initial clamping, the irregular metal parts are driven to rotate one circle to invert the elastic cloth bag 252, so that the fine sand in the elastic cloth bag 252 leaks at a uniform speed under the action of the gourd mouth 253, and the fine sand on the upper part of the elastic cloth bag 252 is refilled to the lower part. According to the gap in the outer wall of the irregular metal parts, each section of the elastic cloth bag 252 is adaptively stacked and expanded, so that each section of the elastic cloth bag 252 is more closely fitted to the outer wall of the irregular metal parts after expansion, thereby ensuring the stable clamping and positioning of the irregular metal parts.

[0046] In order to improve the practicality of the positioning device, Figure 1-Figure 3 and Figure 10-11 As shown, this embodiment provides the following technical solutions:

[0047] The second clamping members 3 are fixedly connected to the mounting plates 14 on both sides above the positioning and calibration cylinder 2 , respectively. The second clamping members 3 are at the same horizontal height, and the second clamping members 3 are symmetrically arranged with respect to the positioning and calibration cylinder 2 .

[0048] The second clamping member 3 includes a fixed plate 31 fixedly connected to the corners on both sides of the top of the mounting plate 14, a U-shaped frame 32 is fixedly connected to the middle of the outer wall of the fixed plate 31 away from the positioning calibration cylinder 2, a driving motor 33 is fixedly connected to the side wall of the U-shaped frame 32, a driving gear 34 fixedly connected to the output end of the driving motor 33 is movably provided on the outer wall at the middle of the fixed plate 31, four groups of identical positioning shafts 35 are movably provided on the outer wall of the fixed plate 31 outside the driving gear 34 at even intervals, and the outer walls of the positioning shafts 35 are fixedly connected with driven gears 36 meshing with the driving gears 34, and the driven gears 36 are arranged in a square shape, and the end of the positioning shaft 35 extends through and extends to the other side of the fixed plate 31 and is fixedly connected with an L-shaped rod 37, and a roller 38 is movably sleeved on the outer wall of the end of the L-shaped rod 37.

[0049] Specifically, when it is necessary to position and clamp the hull plate-like metal component for welding, the hull plate-like metal component to be welded is placed on the top of the auxiliary support plate 5, and the height of the auxiliary support plate 5 is controlled by the hydraulic lifting seat 4, so that the hull plate-like metal component is located between the gaps of the upper and lower rows of L-shaped rods 37 on the side wall of the fixed plate 31. At this time, the two-way screw rod 12 is controlled to drive the moving block 13 to cooperate with the mounting plate 14 to push the L-shaped rod 37 to move toward the hull plate-like metal component, so that the upper and lower rows of L-shaped rods 37 on the side wall of the fixed plate 31 are respectively suspended on the upper and lower sides of the hull plate-like metal component, driving the hull plate After the plate-like metal component is attached to the side wall of the fixed plate 31, the driving motor 33 is started to drive the driving gear 34 to rotate, and the driving gear 34 meshes with the driven gear 36 and cooperates with the positioning shaft 35 to synchronously drive the four groups of L-shaped rods 37 to rotate. When the L-shaped rods 37 rotate, the spacing of the end rollers 38 is adjusted to clamp the plate-like metal components of the hull, and the plate-like metal components of the hull are placed flat on the outer walls of the rollers 38 of multiple L-shaped rods 37 at the same height, which fully ensures the stable clamping of the plate-like metal components of the hull, and can be suitable for the welding, clamping and positioning of plate-like metal components of the hull with different thicknesses, and is easy to use.

[0050] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device.

[0051] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the invention, and the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. An auxiliary positioning device for welding marine metal structural parts, comprising a base (1) and limiting grooves (11) extending through both sides of a top plate of the base (1), a bidirectional screw rod (12) being movably arranged between the side plates at the bottom of the base (1), a moving block (13) being threadedly sleeved on the outer walls at both ends of the bidirectional screw rod (12), the top end of the moving block (13) extending to the top of the base (1) through the limiting groove (11), characterized in that: The top of the moving block (13) is fixedly connected to a mounting plate (14), a positioning and calibration cylinder (2) is rotatably connected to the side wall opposite to the mounting plate (14), a tooth groove (21) is processed on the outer wall of one side of the fixed end of the positioning and calibration cylinder (2), a driving gear (15) meshing with the tooth groove (21) is movably arranged on the side wall of the mounting plate (14) below the positioning and calibration cylinder (2), and a centering assembly (22) is evenly spaced and fixedly connected to the inner wall of the positioning and calibration cylinder (2); The centering assembly (22) comprises U-shaped seats (221) fixedly connected to the inner wall of the positioning calibration cylinder (2) at even intervals, a deflection rod (222) is movably connected between the inner walls of the U-shaped seats (221) on the side away from the port of the positioning calibration cylinder (2), a T-shaped rod (223) is movably arranged between the inner walls of the other end of the U-shaped seats (221), guide grooves (2211) are respectively provided on the side walls at both ends of the U-shaped seats (221) outside the deflection rod (222), the top rod of the T-shaped rod (223) is movably engaged with the guide groove (2211), a U-shaped groove is provided at the bottom of the deflection rod (222), and the overlapping portion penetrates the lower end of the U-shaped groove and the T-shaped rod (223) after being engaged. A pin shaft is arranged, the end of the pin shaft is fixedly connected with a U-shaped plate (224), the bottom of the U-shaped plate (224) is fixedly connected with a clamping rod (225), the outer walls on both sides of the clamping rod (225) are respectively fixedly connected with return springs (226) connected with the deflection rod (222) and the side walls of the T-shaped rod (223), the bottom of the clamping rod (225) is movably provided with an extrusion wheel (227), and the two ends of the top rod of the T-shaped rod (223) outside the guide groove (2211) are respectively movably connected with a pull rod (228), the end of the pull rod (228) is movably connected with a cross rod (229) between the side walls, and the top end of the cross rod (229) is movably connected to the inner wall of the positioning calibration cylinder (2).

2. The auxiliary positioning device for welding of marine metal structural parts according to claim 1, characterized in that: The deflection rod (222), the T-shaped rod (223) and the clamping rod (225) are arranged in a Y shape. When the return spring (226) maintains a normal relaxation state, the top rod of the T-shaped rod (223) is located at the end of the guide groove (2211) away from the deflection rod (222).

3. The auxiliary positioning device for welding of marine metal structural parts according to claim 2, characterized in that: When the return spring (226) maintains a normal relaxed state, the cross-shaped rod (229) is arranged in an inclined state, and the inclined lower end of the vertical rod of the cross-shaped rod (229) faces the port of the positioning calibration cylinder (2). At this time, the vertical rods of all the cross-shaped rods (229) in the positioning calibration cylinder (2) form a conical cylindrical structure.

4. The auxiliary positioning device for welding of marine metal structural parts according to claim 1, characterized in that: The extrusion wheel (227) comprises an intermediate column (2271) movably connected to the bottom of the clamping rod (225) and a flexible shell (2272) coaxially fixedly connected to the outer wall of the intermediate column (2271); elastic air bags (2273) are evenly and fixedly connected to the inner wall of the flexible shell (2272); air inlet holes (2274) communicating with the elastic air bags (2273) are evenly provided on the outer wall of the flexible shell (2272); air outlet valves (2275) are respectively fixedly connected to the outer walls of both sides of the elastic air bags (2273); a fixing plate (2276) is fixedly connected to the end of the elastic air bags (2273); mounting grooves (2277) are respectively provided on the outer wall of the intermediate column (2271) corresponding to the fixing plate (2276); and a spring rod (2278) is fixedly connected between the inner wall of the mounting groove (2277) and the outer wall of the fixing plate (2276).

5. The auxiliary positioning device for welding of marine metal structural parts according to claim 4, characterized in that: The outer wall of the flexible shell (2272) outside the elastic airbag (2273) is evenly spaced with air outlet holes. When the flexible shell (2272) is not squeezed and deformed, the elastic airbag (2273) and the spring rod (2278) both maintain a normal relaxation state.

6. The auxiliary positioning device for welding of marine metal structural parts according to claim 1, characterized in that: A hydraulic lifting seat (4) is fixedly connected to the middle of the top plate of the base (1), the limiting grooves (11) are arranged symmetrically about the hydraulic lifting seat (4), and an auxiliary support plate (5) is fixedly connected to the top of the hydraulic lifting seat (4).

7. The auxiliary positioning device for welding of marine metal structural parts according to claim 1, characterized in that: A flip cover (23) is movably connected to the outer wall of one side of the port of the positioning calibration cylinder (2), and electric push rods (24) are movably connected to the outer walls on both sides of the flip cover (23), and the ends of the electric push rods (24) are movably connected to the outer walls at both ends of the positioning calibration cylinder (2), and first clamping members (25) are evenly spaced and fixedly connected to the outer wall of the flip cover (23).

8. The auxiliary positioning device for welding of marine metal structural parts according to claim 7, characterized in that: The first clamping member (25) comprises a fixing seat (251) fixedly connected to the outer wall of the flip cover (23) at even intervals and an elastic cloth bag (252) fixedly connected to the outer wall of the fixing seat (251); the inner cavity of the elastic cloth bag (252) is provided with gourd-shaped openings (253) at even intervals; a binding rope (254) is fixedly connected to the side wall of one end of the fixing seat (251); the other end of the binding rope (254) is spirally movable and penetrates the fixing seat (251); the rear end is fixedly connected to the side wall of the other end of the fixing seat (251); and the binding rope (254) is wrapped around the outside of the elastic cloth bag (252).

9. The auxiliary positioning device for welding of marine metal structural parts according to claim 1, characterized in that: The second clamping members (3) are respectively fixedly connected to the mounting plates (14) on both sides above the positioning and calibration cylinder (2); the second clamping members (3) are at the same horizontal height and are symmetrically arranged with respect to the positioning and calibration cylinder (2).

10. The auxiliary positioning device for welding of marine metal structural parts according to claim 9, characterized in that: The second clamping member (3) comprises a fixing plate (31) fixedly connected to the corners on both sides of the top of the mounting plate (14); a U-shaped frame (32) is fixedly connected to the middle of the outer wall of the fixing plate (31) away from the positioning calibration cylinder (2); a driving motor (33) is fixedly connected to the side wall of the U-shaped frame (32); a driving gear (34) fixedly connected to the output end of the driving motor (33) is movably arranged on the outer wall at the middle of the fixing plate (31); four groups of identical positioning shafts (35) are movably arranged at even intervals on the outer wall of the fixing plate (31) outside the driving gear (34); driven gears (36) meshing with the driving gears (34) are fixedly connected to the outer walls of the positioning shafts (35); the driven gears (36) are arranged in a square shape; and the end of the positioning shaft (35) extends through and extends to the other side of the fixing plate (31) and is fixedly connected to an L-shaped rod (37); a roller (38) is movably sleeved on the outer wall of the end of the L-shaped rod (37).

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