SU1027004A1 - Unit for assembling and welding l-shaped rigidity fin complete set - Google Patents

Abstract

1. UNIT FOR ASSEMBLING AND WELDING OF A SET OF A-SHAPED RIBBERS WITH CRANO-VOLUME ON CONTOUR OF STRIPS, containing mounted; on the basis of the side feed device of the L-shaped stiffener to the assembly for welding with the cloth, the beam of the preliminary bending of the cloth, as well as the portal with welded units on the girder, receiving-centering and clamping devices of the L-shaped stiffener to the cloth, differing from the fact that, in order to increase the accuracy of assembling the L-shaped stiffeners with the panel for welding, the number of receiving-centering devices is equal to the number of clamping devices of the Y-shaped stiffening rib, each clamping the device is located behind each receiving and centering device along the longitudinal axis of the bolt, each receiving and centering device made in the form of two symmetrically i located with respect to the longitudinal axis of the bolt of tilt and rods WITH, at the end of each of which is eccentric to its axis; plane parallel to the base; support roller for centering stiffeners.

Description

2. An assembly according to claim 1, characterized in that, for the purpose of prvy; The accuracy of assembling the L-shaped stiffening rib in areas of the panel with a smaller width, the beam of pre-bending the panel from the side of the placement of the side-feed device of the L-shaped stiffening rib on the panel is equipped with a movable support for the L-shaped stiffening rib.

The invention relates to, in particular, to the construction of a unit for welding an L-shaped set of stiffeners with a curvilinearly contoured panel. The most successful invention can be used in the field of shipbuilding. Known assemblies for assembling and welding stiffeners to canvas-J shchami with side-feeding of ribs are stiffness to panels, containing a station for feeding stiffeners and a station for welding by an fillet weld of a G1T panel-production line. . This station consists of the following main parts: a portal with a crimping device, pre-bending beams, a panel with movable electromagnets, devices for lateral stiffening ribs on the cloth, devices for centering the set beam relative to the marking line, and welding units. Crimping portal together with a beam of preliminary, bending form a closed frame. The stiffener feeder is a carrier carriage, moving in guides made in the portal rack, including a traverse, lowered from the portal gantry to receive the set beam. The welded rib is carried by the carrier carriage to the welding site, precisely centered along the marking line with the help of the portal lifting track, after which the carrier carriage is removed, the traverse is raised and produced when the rib is welded to the cloth. The disadvantage of the aggregate data I is that they have low accuracy in the assembly of stiffeners with a panel. A known unit for assembling and welding a set of L-shaped stiffening ribs with a curved along the contour panel, containing a side-mounted device for an L-shaped stiffening rib to the welding assembly with a panel, a pre-bending beam of the panel, and a portal with a grip on it. welding units receiving-centering and clamping devices L-shaped stiffener to the panel C23 .; The disadvantage of this unit is that it does not provide the required accuracy of assembly of the L-shaped stiffeners with the panel under | welding The purpose of the invention is to create such a construction of an assembly for assembling and welding a set of L-shaped stiffeners with a curvilinear "1 along the contour of the web. This goal is achieved by having J4TO in an assembly for assembling and welding of a set of L-shaped stiffeners with a curved along the contour of the web, containing side-mounted device for lateral supply of L-shaped stiffener to the assembly for welding with a panel, beam of preliminary bending of the panel, as well as a portal with welding units installed on its crossbar, receiver the number of receiving and centering devices is equal to the number of clamping: devices of the shaped stiffening rib, while each pressing device is located behind each receiving and centering device along the longitudinal axis of the crossbar, moreover, the receiving-centering device is made in the form of two symmetrically located, relative to the longitudinal axis of the bolt, lifting and rotating rods, on the end of each of which are eccentric to its axis with the possibility of free rotation EIW plane / parallel to the base, a support roller for centering ribs. The beam of pre-bending of the panel on the placement side of the side-feed device of the L-shaped stiffening rib on the panel is provided with a movable support for the L-shaped stiffener and bone rib. FIG. 1 shows the unit, a general view; in fig. 2 is a section A-A in FIG. one; in fig. 3 - the same, at the moment of clamping the stiffener; in fig. 4.-section BB in FIG. one; in fig. 5, node 8 in FIG. four; in fig. 6 is a view of FIG. one; Fig 7 - the location of the eccentric rollers when lifting the centering device; in fig. 8 the same, when taking stiffeners; in fig. 9 - tr, with centrifugal stiffeners; in fig. 10 view D in FIG. one; in fig. 11 is a sectional view of FIG. ten; in fig. 12 - that. at the end of the curvilinear panel; in FIG. 13 is a section LJ in FIG. 12. The unit for assembling and welding a L-shaped stiffening ribs with a curved along the contour panel contains a portal 1 with several pairs mounted in a gantry of portal 1 in series along the marking line on the fabric 2 of the presser 3 and the receiving-centering 4 devices. To bend the panel 2, a pre-bending beam is provided. 5, which forms a closed system of increased rigidity with portal 1. The unit is equipped with a device for lateral supply of side ribs {ty 7 and a movable support 8 located on the side of the device 6. rigidity 7 with the ability to move along the pre-bending beam 5 from the hydraulic cylinder. (not shown). The side feed device 6 is in the form of a roller table with horizontal and vertical fixed and pressure rollers (not shown) provided with a pusher (not shown) connected to a chain drive (not shown). On the portal 1 there are welding units 9. Receiver-center-i. The device 3 consists of. two symmetrically positioned ribs, rigidity of eccentric er axes of rotation of the support rollers 10, planted on a lifting and turning stock: CI 11. On the cylindrical part of the stock; forks 11 there are bayonet grooves 12,; These are vertical grooves whose ends are made along a helical line. To rotate the rod during its vertical movement, there are fixed stops 13, which are located in the bayon: tny, grooves 12. Another 11 receiving-centering devices 4 are equipped with hydraulic cylinders 14 to rotate them in a vertical plane and for lifting. Crimping device 3 consists of two hydraulic cylinders 15 mounted on slider 16. Slider 16 is mounted on fixed guides 17 and includes a tong clamp 18 driven by a hydraulic cylinder. The number of receiving-centering devices A is equal to the number of pressing devices 3 L-shaped stiffener ribs 7. Each clamping device 3 is positioned behind each receiving and centering device & 4 along the longitudinal axis of the girder of portal 1. Eccentricize the pair of rollers 10 exceeds the size of the projection of the L-shaped edge of rigidity 7. Each supporting role to 10 can rotate freely in a flat plane. bones parallel to the base. The unit for assembling and welding a set of L-shaped stiffeners, with curved curving around the contour, works as follows. To prepare the unit for operation, it is necessary: Position the panel 2 so that the marking line for welding the stiffener coincides with the axis of the unit; the eccentric rollers 10 of the receiving centering device 4 by the hydraulic cylinder 14 are lowered, while the rods 11, interacting with the fixed stops 13, are turned, bringing the rollers 10 e 6 closer together to form the gap necessary to receive the stiffener 7; When applying a short stiffener, the movable support 8 with a hydraulic cylinder extends midway between the last roller support of the side-feed device 6 of the stiffener 7 and the panel 2. After the assembly of the unit, the stiffener 7 with the side-feed set of the set 6 is fed to the cloth 2, the hydraulic cylinder 14 rods 11 of the receiving centering device 4 is lowered downwards, while the fixed stops 13, located on the screw part of the bayonet grooves 12, unfold the rods 11, - which leads to the continuation of the approaching of the support rollers 10 until complete clamping and centering the stiffener 7. The stiffener 7 installed along the marking line is pressed against the panel 2 above the beam of the preliminary bend 5 pressed with 1 MI hydraulic cylinders 15 of the pressing device 3, one. modern tick clamps 18 using a hydraulic cylinder 19 compresses the wall of the set. When welding the stiffener 7 to the plate 2, the welding unit 9 moves along the portal 1. When the welding head of the unit 9 approaches the support rollers 10, the last cylinder 14 turns first due to the sliding of the bayonet groove 12 of the rod 11 along the fixed stop 13, and then rises the upper position and again reduced, freeing up space for the movement of the welding unit 9, while the pressing device 3 does not interfere with the conduct of welding. After the welding of the stiffener 7 to the panel 2 is completed, the tongs 18 of the clamping device 3 are moved apart by the action of the hydraulic cylinder 19, and the pressure cylinders 15 raise the grips 18 to the upper position. The operation of the movable support 8 is as follows.

When applying a stiffening rib 7 of long length, the movable support 8 is located in the initial position.

When applying a short stiffener 7, the distance I between the last roller of the side feeding device b and the cloth 2 is more than half the length of the stiffener (a 7 0.5 C), therefore, when applying such a stiffener to the cloth 2, it fails and rests against the edge of the cloth 2 In order to avoid this, an intermediate movable support 8 extends.

The invention, in comparison with the prototype, makes it possible to simplify the design of the unit and ensure the assembly and welding of stiffening ribs of variable length and L-shaped profile to curvilinearly contoured panels with a simultaneous improvement in the quality of welding. This unit allows to simplify its maintenance, reduce the prime cost and can be used in the flow mechanized lines.

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Claims (2)

. 1. UNIT FOR ASSEMBLING AND WELDING A SET OF D-SHAPED RIGIDITY RIBS WITH A CURVILINE ON THE CIRCUIT OF THE KEEPER, containing mounted; based on the device for lateral supply of an L-shaped stiffener to an assembly for welding with a panel, a beam of preliminary bending of the panel, and also a portal with welding units stopped on its crossbar, receiving-centering and pressing devices of the L-shaped stiffener to the panel, distinguishing with I mean that, in order to increase the accuracy of assembly of L-shaped stiffeners with a cloth for welding, the number of receiving-centering devices is equal to the number of clamping devices' * L-shaped stiffeners, with each clamping device The property is located behind each receiving-centering device along the longitudinal axis of the crossbar, and each receiving-centering device is made in the form of two lifting-rotary rods symmetrically located relative to the longitudinal axis of the crossbar, on the end of each of which is mounted with the possibility of free rotation in a plane parallel to the base, a support roller for centering the stiffeners. 2. The unit by π. 1, characterized in that, in order to increase / improve the assembly accuracy of the L-shaped stiffener, in sections of the panel with a smaller width, the beam of preliminary bending of the panel from the side of the lateral feed device of the L-shaped stiffener. on the panel is equipped with a movable support for the L-shaped stiffener.