Hull part welding platform

Abstract

The utility model relates to the technical field of hull machining, and particularly discloses a hull part welding platform which comprises a supporting and fixing platform and a part lifting appliance. The supporting and fixing platform comprises a platform body, a plurality of supporting rods are arranged on the platform body in a liftable mode, and the supporting rods are evenly arranged on the platform body and form a three-dimensional supporting area. A locking assembly and a driving assembly are arranged on the lower portion of the supporting rod. The locking assembly is used for locking the supporting rod; the driving assembly controls the supporting rod to ascend and descend. And the part lifting appliance is used for assisting in lifting the to-be-welded part. According to the utility model, irregular parts to be welded can be effectively and stably supported and fixed, and the welding quality is obviously improved.

Description

Technical Field

[0001] The utility model relates to the technical field of hull processing, in particular to a hull parts welding platform. Background Art

[0002] The general steps of the hull processing are as follows: steel pretreatment - material processing - component welding and assembly - section welding - slipway welding (closing), etc.; component welding includes welding the cut small pieces of plate into small components according to the welding line, and then welding the small components into medium components, and then welding the medium components into large components... Finally, the hull sections are formed and then enter the section welding section; in the process of welding small components into medium components, because the small components are irregular components welded from multiple small plates with different structures, two small components that need to be welded to each other are placed on the traditional horizontal welding table. After the welding lines of the two small components are aligned, their welding lines are often in a non-horizontal state, and it is often found that some small components are difficult to achieve stable placement; and with the development of welding machine technology Development, currently tend to use semi-automatic / fully automatic welding machines to reduce manual welding; however, when using the above welding machines, to ensure the quality of welding and reduce the occurrence of welding defects such as slag inclusions and pores, it is necessary to adjust the weld and positioning, such as using a self-moving welding machine. Compared with manual welding, its advantages are controllable parameters and good welding quality, but in order to ensure the welding effect, its moving trajectory is generally limited to the same horizontal plane. For example, the weld is on a non-horizontal plane that is inclined downward. When using the above welding machine for welding, it is difficult to achieve a perfect correspondence between the welding trajectory and the weld with a three-dimensional distribution. Therefore, the welding process is prone to welding defects due to welding angles, stress, welding head pressure, etc., especially for welds with irregular curves in three-dimensional space, it is more difficult to ensure the welding quality. The above are technical difficulties to be solved in this field. Summary of the invention

[0003] In view of the above shortcomings, the utility model provides a hull parts welding platform which can achieve good welding effect of irregular hull parts.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] A hull component welding platform comprises a supporting and fixing platform and a component hoist; the supporting and fixing platform comprises a platform body, on which a plurality of support rods are liftably arranged, wherein the plurality of support rods are evenly arranged on the platform body and form a three-dimensional supporting area; a locking assembly and a driving assembly are arranged at the lower part of the support rod; the locking assembly locks the support rod; the driving assembly controls the lifting and lowering of the support rod; the component hoist is used to assist in lifting the components to be welded.

[0006] Optionally, the component lifting device includes a movable lifting rod and a magnetic component. The movable lifting device is provided with a lifting component, the lifting component is inverted in the vertical direction, and the lower end of the lifting rod of the lifting component is detachably connected to the magnetic component; the magnetic component is used to assist in lifting the components to be welded.

[0007] Optionally, the adsorption surface at the lower end of the magnetic component is arranged horizontally.

[0008] Optionally, a slot is provided at the lower end of the magnetic component; a weld positioning block is detachably provided in the slot; and the weld positioning block is made of a non-magnetized magnetic conductive material.

[0009] Optionally, a weld fitting head is provided at the lower portion of the weld positioning block; the weld fitting head is telescopically connected to the weld positioning block.

[0010] Optionally, the locking assembly is a micro-cylinder clamp assembly, and the micro-cylinder clamp assembly clamps the support rod to achieve a locking function;

[0011] or

[0012] The locking assembly comprises a miniature telescopic cylinder arranged on both sides of the support rod, and the telescopic rod of the miniature telescopic cylinder is provided with an extrusion block, and the extension of the two miniature telescopic cylinders causes the two extrusion blocks to squeeze the support rod to achieve locking of the support rod, so as to prevent the support rod from moving up and down;

[0013] The cylinder air pipe of the miniature cylinder clamp assembly or the miniature telescopic cylinder is provided with a first air valve.

[0014] Optionally, the driving assembly includes a piston cylinder, a piston and a return spring; the piston cylinder is arranged directly below the support rod, and the piston is arranged at the lower part of the support rod; the return spring is arranged in the piston cylinder, and is arranged below the piston and presses the lower end of the piston upward; an air inlet is arranged at the upper part of the piston cylinder, and the air inlet is externally connected to a positive pressure air pipe, and a second air valve is arranged on the positive pressure air pipe; the lower part of the support rod can move up and down in the piston cylinder.

[0015] Optionally, a parts pressing assembly is further provided on the platform body, and the parts pressing assembly is arranged on the periphery of the three-dimensional support area.

[0016] Optionally, the component clamping assembly includes a telescopic cylinder, a telescopic rod of the telescopic cylinder is provided with a connecting fixed head, the connecting fixed head is provided with a longitudinal slide groove, and a movable solid is provided in the longitudinal slide groove. Optionally, a pressure sensing module is provided at the top end of the support rod.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] 1. The utility model is provided with a magnetic component to adjust the placement of the parts to be welded based on the weld being in a horizontal plane, and is provided with a three-dimensional support area, relying on the free contraction of a plurality of the support rods to achieve effective and stable support for various irregular parts to be welded, and the locking component is used to lock the contracted plurality of the support rods, and the driving component is used to contract the remaining support rods to the lowest position, and then the outside of the parts to be welded is further limited by the parts clamping assembly, and finally the weld of the parts to be welded is maintained at the same standard horizontal plane, and the irregular parts to be welded are effectively and stably supported and fixed.

[0019] When the utility model is used for welding, the welds of the two parts to be welded are analyzed for coplanarity. With the help of the hull parts welding platform, the welds are adjusted to be coplanar in the horizontal plane and the two parts to be welded are stably supported and fixed. Then, the welds on the same horizontal plane are welded, that is, the three-dimensional welds are converted into horizontal welds, so as to significantly improve the welding quality, especially reduce the welding defects that are easily caused by the three-dimensional running track of the automatic welding machine. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for describing the embodiments are briefly introduced below.

[0021] Figure 1 It is a cross-sectional view of the supporting and fixing platform of the utility model;

[0022] Figure 2 It is a cross-sectional view of a second specific embodiment of the locking assembly of the utility model;

[0023] Figure 3 It is a side view of the utility model;

[0024] Figure 4 It is a partial top view of the three-dimensional support area of ​​the utility model;

[0025] Figure 5 It is a side view of the magnetic assembly of the utility model;

[0026] Figure 6 It is a schematic diagram of the structure after the magnetic component of the utility model is combined with the first type of weld positioning block;

[0027] Figure 7 It is a structural schematic diagram of the combination of the magnetic component of the utility model and the second welding seam positioning block. DETAILED DESCRIPTION

[0028] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0029] In the description of the present utility model, it should be noted that the directions or positional relationships indicated by the terms "inside", "front", "back", "left", "right", etc. are based on the directions or positional relationships shown in the accompanying drawings, or are the directions or positional relationships in which the utility model product is usually placed when in use. They are only for the convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present utility model.

[0030] In the description of the present invention, it is also necessary to explain that, unless otherwise clearly specified and limited, the terms "setting" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0031] like Figures 1 to 7 As shown, the hull component welding platform includes a supporting and fixing platform and a component lifting device; the supporting and fixing platform includes a platform body 9, on which a plurality of support rods 2 can be raised and lowered, and the plurality of support rods 2 are evenly arranged on the platform body 9 and form a three-dimensional support area, namely, the ST area; during preparation, the arrangement gap of the plurality of support rods 2 may be about 6 cm, but this cannot be understood as a limitation on the protection scope of the present application, and the arrangement gap in this embodiment is mainly considered to consider the spatial position of the lower locking assembly and the driving assembly. A pressure sensing module 1 is provided at the top of the support rod 2 for monitoring the pressure from the component to be welded. A locking assembly and a driving assembly are provided at the lower part of the support rod 2; the locking assembly locks the support rod 2; the driving assembly controls the lifting and lowering of the support rod 2; in this embodiment, the locking assembly adopts the following structure:

[0032] The first option:

[0033] like Figure 1As shown, the locking assembly is a micro-cylinder clamp assembly 4, which clamps the support rod 2 to achieve the locking function; for example, in this embodiment, the micro-cylinder clamp assembly 4 can use a pneumatic micro-manipulator clamp, and the selection of its specifications mainly considers the diameter and weighing of the support rod 2. For example, if the diameter of the support rod 2 is 18mm, the pneumatic micro-manipulator clamp can use the MINI-ENC pneumatic manipulator mini clamp of Quanlifa, which is about 6cm in length and can clamp up to about 100N. During assembly, the lower part of a support rod 2 is equipped with a micro-cylinder clamp assembly 4, and the support rod 2 passes through the middle of the chuck 13. When the micro-cylinder clamp assembly 4 is not started, the support rod 2 can move freely up and down, and the clamping is achieved by controlling the clamping of the micro-cylinder clamp assembly 4 on the support rod 2, thereby limiting the upward and downward extension of the support rod 2.

[0034] Second option:

[0035] like Figure 2 As shown, the locking assembly includes a miniature telescopic cylinder 22 arranged on both sides of the support rod, and the telescopic rod of the miniature telescopic cylinder 22 is provided with an extrusion block 21, i.e., a brake block for clamping. The extension of the two miniature telescopic cylinders 22 causes the two extrusion blocks 21 to squeeze the support rod 2 to achieve locking of the support rod 2, so as to prevent the support rod 2 from moving up and down;

[0036] In this embodiment, a cavity 5 is provided in the middle of the platform body 9, and the micro cylinder clamp assembly 4 or the micro telescopic cylinder 22 is provided in the cavity 5. The support rod 2 is inserted into the insertion holes at the upper and lower ends of the cavity 5, and a rubber ring 3 is provided at the insertion hole 14 to improve the lifting and lowering stability of the support rod 2.

[0037] A first air valve (not shown) is provided on the air pipe of the micro-cylinder clamp assembly or the micro-telescopic cylinder, and the opening and closing are controlled by the first air valve.

[0038] like Figures 1-2As shown, the driving assembly includes a piston cylinder 11, a piston 8 and a return spring 10; the piston cylinder 11 is arranged directly below the support rod 2, and the piston 8 is arranged at the lower part of the support rod 2; the return spring 10 is arranged in the piston cylinder 11, and is arranged below the piston 8 and presses the lower end of the piston 8 upward to keep the support rod 2 in a jacking state. In this embodiment, a limiting convex ring 18 is also provided on the upper part of the piston cylinder 11 to limit the piston 8. When the position limiting convex ring 18 is in the open position, an air inlet chamber 19 is formed above the position limiting convex ring 18; the air inlet chamber 19 is provided with an air inlet hole, and the air inlet hole is externally connected to a positive pressure air pipe 20, and a second air valve 12 is provided on the positive pressure air pipe; the lower part of the support rod 2 can move up and down in the piston cylinder 11, and a socket is provided on the top of the piston cylinder 11, and the support rod 2 is inserted through the socket, and a sealing rubber ring 7 is also provided at the socket. The second air valve 12 is opened, and the piston 8 is driven to move downward by positive pressure, thereby controlling the support rod 2 to retract downward.

[0039] like Figure 3 As shown, the component hanger includes a movable hanger 28 and a magnetic component 23, the movable hanger 28 is provided with a rotatable cross bar 27, the end of the cross bar 27 is movably provided with a lifting component 26, the lifting component 26 is inverted in the vertical direction, when in use, the cross bar 27 can rotate relative to the movable hanger 28, and the lifting component 26 can be horizontally displaced along the cross bar 27; the function of the lifting component 26 is that: the lifting component 26 can be used as an auxiliary downward pressing mechanism during operation, so as to apply a certain downward squeezing force to the parts to be welded, and ensure that all the support rods 2 directly below the projection surface of the parts to be welded obtain a certain downward squeezing force; ... The lower end of the lifting rod of component 26 is provided with a connecting block 25, and the connecting block 25 is detachably connected to the magnetic component 23, for example, by plug-in connection, and then tightened by tightening screws 24; the magnetic component 23 is used to assist in lifting the parts to be welded, and plays a role in magnetic adsorption and auxiliary lifting of the parts to be welded (in actual operation, workers can also support the parts to be welded by hand to a certain extent, so that the parts to be welded can effectively fall into the ST area) and rely on magnetic force to maintain the weld in a horizontal plane during the relevant operation process; the adsorption surface at the lower end of the magnetic component 23 is horizontally arranged to maintain the weld in the same horizontal plane. The lower end of the magnetic component is provided with a slot 23-1; a weld positioning block is detachably arranged in the slot 23-1; the weld positioning block is made of non-magnetized magnetic conductive material, such as electromagnetic pure iron or silicon steel; when in use, a suitable weld positioning block is selected according to the configuration of the weld surface of the part to be welded. If the configuration of the weld surface is a plane, a suitable weld positioning block can be selected. Figure 5The weld positioning block 23-1-1 shown in the figure is level with the lower end surface of the entire magnetic assembly 23 after being inserted; the weld positioning block has various styles and can be customized in combination with the commonly welded parts in shipbuilding, for example, Figure 6 The second weld positioning block 23-1-2 shown in the figure has a protruding trapezoidal weld fitting head at its lower part. When used, this weld positioning block is suitable for the welds of two parts to be welded to be sunken. In order to improve flexibility, it can also be as follows Figure 7 The third weld positioning block shown in the figure comprises a positioning seat 23-1-3, and a positioning head 23-1-4 is telescopically arranged at the lower part of the positioning seat 23-1-3. The lower end of the positioning head 23-1-4 is arranged at an angle ∠α. When selecting, the positioning head 23-1-4 with different angles ∠α can be selected as needed, and the telescopic adjustment of the positioning head 23-1-4 can be adjusted to match the fixation of the end faces of the two parts to be welded, that is, Figure 7 As shown, the stability of the adjustment operation process is improved by relying on the three contact points a, b, and c, which is beneficial to maintaining the weld in a horizontal plane during the adjustment operation process; and for some situations where the weld surface is not left-right symmetrical, magnetic force can be relied on to maintain the stability of the operation process or gaskets can be added on the left / right side to improve the convenience of operation, or an integrated boss can be provided on the left / right side of the weld positioning block to improve the convenience of operation.

[0040] like Figure 1 As shown, a parts clamping assembly is also provided on the platform body, and the parts clamping assembly is provided on the periphery of the three-dimensional support area. The parts clamping assembly includes a telescopic cylinder 17, and a connecting and fixing head 16 is provided on the telescopic rod of the telescopic cylinder 17, and the connecting and fixing head 16 is provided with a longitudinal slide groove, and an extrusion block 15 is movably fixed in the longitudinal slide groove. In this embodiment, a group of the parts clamping assembly can be provided in the front, back, left and right directions of the three-dimensional support area, and the purpose of setting the extrusion block 15 to be adjustable is to improve the actual operation flexibility, and to improve the extrusion and fixing effect in four directions due to the different overall height positions of the parts to be welded after being pressed down. In this scheme, the component clamping assembly is mainly used to assist in maintaining the stability of the components to be welded in the horizontal plane, that is, the stable support of the components to be welded relies on the several support rods 2 in the ST area to adapt to the configuration of the lower part of the components to be welded and achieve different degrees of contraction to achieve stable support, and combined with the horizontal limitation of the component clamping assembly to achieve overall stable support and fixation, that is, the weld is in the horizontal plane as a reference to adaptively and effectively support and fix the components to be welded, and the fixing effect is good.

[0041] In this embodiment, the pressure sensing module 1 is used to monitor whether the support rod 2 is subjected to pressure from the parts to be welded. When in use, all the support rods 2 in the projection surface area of ​​the parts to be welded are subjected to pressure, while the pressure sensing module 1 of the support rods 2 on the non-projection surface will not receive pressure. At this time, the pressure signal monitored by the pressure sensing module 1 is transmitted to the control circuit. The corresponding locking assembly and driving assembly of the corresponding support rod 2 exceeding the pressure setting threshold are controlled as follows:

[0042] The support rod that is subjected to pressure is recorded as P1, and the support rod that is not subjected to pressure is recorded as P2;

[0043] The control circuit opens the first air valve corresponding to the support rod P1, prompting the micro-cylinder clamp assembly or the micro-telescopic cylinder at the bottom of the support rod to clamp it, while the second air valve corresponding to the support rod P1 remains in a closed state; the control circuit opens the second air valve corresponding to the support rod P2, while the first air valve corresponding to the support rod P2 remains in a closed state, prompting the support rod P2 to drop to the lowest position, so as to subsequently control the extrusion block 15 of the component clamping assembly to move inward, and perform peripheral auxiliary limiting on the components to be welded; to achieve stable support for the components to be welded, and maintain the weld in the horizontal plane at the top, so that the subsequent welding trajectories are all in a horizontal plane, which not only simplifies the trajectory control, but also makes the welding angle, welding head pressure and other controllability better, and significantly improves the welding quality.

[0044] The steps of welding using the utility model include:

[0045] S1: Performing a coplanar analysis on the welds of two components to be welded, and taking the weld areas that can be in the same horizontal plane as coplanar welds; attaching the coplanar welds to the lower end of the weld positioning block, starting the magnetic assembly to magnetically adsorb the two components, and keeping the coplanar welds in the horizontal plane;

[0046] S2: by pressing the two components to be welded downward, the support rods corresponding to the projection surfaces of the two components are compressed downward; and the pressure is monitored by the pressure sensing module at the top of the corresponding support rod;

[0047] S3: The support rod that is subjected to pressure is recorded as P1, and the support rod that is not subjected to pressure is recorded as P2;

[0048] Open the first air valve corresponding to the support rod P1, so that the micro cylinder clamp assembly or micro telescopic cylinder at the lower part of the support rod clamps it, while the second air valve corresponding to the support rod P1 remains closed;

[0049] Open the second air valve corresponding to the support rod P2, while keeping the first air valve corresponding to the support rod P2 closed, so that the support rod P2 is lowered to the lowest position;

[0050] S4: Start the component clamping assembly to squeeze and fix the outer peripheries of the two components to be welded;

[0051] S5: removing the magnetism of the magnetic component, controlling the magnetic component to separate from the coplanar weld, and performing spot welding operations on both ends of the coplanar weld;

[0052] S6: Set the running track of the self-moving welding machine, and the running track is the running track of the same horizontal plane, align and position the welding head of the self-moving welding machine with the coplanar weld. The above operation is a routine operation and will not be described in detail, and then perform welding.

Claims

1. Hull parts welding platform, characterized by: It includes a supporting and fixing platform and a parts hoist; the supporting and fixing platform includes a platform body, and a plurality of support rods are arranged on the platform body in a liftable manner, and the plurality of support rods are evenly arranged on the platform body and form a three-dimensional supporting area; a locking assembly and a driving assembly are arranged at the lower part of the support rod; the locking assembly locks the support rod; the driving assembly controls the lifting and lowering of the support rod; the parts hoist is used to assist in lifting the parts to be welded.

2. The hull parts welding platform according to claim 1, characterized in that: The component lifting device includes a movable lifting rod and a magnetic component. The movable lifting device is provided with a lifting component, and the lifting component is inverted in the vertical direction. The lower end of the lifting rod of the lifting component is detachably connected to the magnetic component; the magnetic component is used to assist in lifting the components to be welded.

3. The hull parts welding platform according to claim 2, characterized in that: The adsorption surface at the lower end of the magnetic component is arranged horizontally.

4. The hull parts welding platform according to claim 3, characterized in that: A slot is provided at the lower end of the magnetic component; a weld positioning block is detachably provided in the slot; and the weld positioning block is made of a non-magnetized magnetic conductive material.

5. The hull parts welding platform according to claim 4, characterized in that: A weld fitting head is arranged at the lower part of the weld positioning block; the weld fitting head is telescopically connected to the weld positioning block.

6. The hull parts welding platform according to claim 1, characterized in that: The locking assembly is a micro-cylinder clamp assembly, and the micro-cylinder clamp assembly clamps the support rod to achieve a locking function; or The locking assembly comprises a miniature telescopic cylinder arranged on both sides of the support rod, and the telescopic rod of the miniature telescopic cylinder is provided with an extrusion block, and the extension of the two miniature telescopic cylinders causes the two extrusion blocks to squeeze the support rod to achieve locking of the support rod, so as to prevent the support rod from moving up and down; The cylinder air pipe of the miniature cylinder clamp assembly or the miniature telescopic cylinder is provided with a first air valve.

7. The hull parts welding platform according to claim 1, characterized in that: The driving assembly includes a piston cylinder, a piston and a return spring; the piston cylinder is arranged directly below the support rod, and the piston is arranged at the lower part of the support rod; the return spring is arranged in the piston cylinder, and is arranged below the piston and presses the lower end of the piston upward; an air inlet is arranged at the upper part of the piston cylinder, and the air inlet is externally connected to a positive pressure air pipe, and a second air valve is arranged on the positive pressure air pipe; the lower part of the support rod can move up and down in the piston cylinder.

8. The hull parts welding platform according to claim 1, characterized in that: The platform body is also provided with a parts pressing assembly, and the parts pressing assembly is arranged on the periphery of the three-dimensional support area.

9. The hull parts welding platform according to claim 8, characterized in that: The component pressing assembly comprises a telescopic cylinder, a connecting and fixing head is arranged on the telescopic rod of the telescopic cylinder, the connecting and fixing head is arranged with a longitudinal slide groove, and an extrusion block is movably fixed in the longitudinal slide groove.

10. The hull parts welding platform according to claim 1, characterized in that: A pressure sensing module is arranged on the top end of the support rod.

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