SU1530396A1 - Clamping device - Google Patents

Abstract

The invention relates to welding, in particular to ancillary devices for the manufacture of welded metal structures, for example, flat hull sections. The purpose of the invention is to increase productivity. When lowering the rod of the power cylinder 3, the plate 2 reaches the upper edge of the product stiffener and stops, and the plate 1, continuing to move down, carries the rocker arms 4 with the nuts 8 mounted on them. The rocker arms slide along the uprights 11, and the nuts 8 move progressively, causing the rods 7 to rotate until the gripping levers 9 reach the wall of the stiffener. Using an eccentric stopper 14, a strut is created between the eye 12 and the rocker 4, which prevents movement of the plate 1 relative to the plate 2. Raise the clamping device with the power cylinder, remove the rib from the cassette, place it on the web and grab it by welding. Raise the device, freeing the edge. By moving the clamping device along the stiffener, they are pressed and grasped along the entire length, while the deviation of the device's trajectory from the marking line of the cloth along which the stiffener is installed is compensated by turning the crank 15 mounted on the rod of the power cylinder 3. Due to the fact that the device is equipped with a crank In order to center on the stiffener, the device does not need to be moved with the help of a pointing drive, therefore, the productivity is improved. 9 il.

Description

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Neem power and; ilnndrom clamping device, the rib is removed from the cassette, set on the cloth and grabbed by welding. Raise the device, freeing the edge. Moving the clamping device along the stiffener, they are pressed and grasped along the entire length, while the deviation of the movement path of the device from the marking line of the cloth along which the stiffener is installed is compensated by turning the crank 15 mounted on the rod of the power cylinder 3. Because the device is equipped By means of a crank for centering along the stiffener, it is no longer necessary to move the device with the help of a pointing drive, therefore, the productivity is improved. 9 il.

The invention relates to welding, in particular to ancillary devices for the manufacture of welded metal structures, such as flat hull sections.

The purpose of the invention is to increase productivity by self-installing the plate with grippers along the axis of the product.

FIG. 1 shows a clamping device, a general view with a stepwise cut along the stopper of the position of the gripping levers on one side of the axis of symmetry and along the front nut on the other side of the axis of symmetry; in fig. 2 is a view A of FIG. 1, while the center of the crank is located in the initial position, i.e. coaxially with the center of the device; in fig. 3 is a section BB in FIG. one; in fig. 4 shows a section B-B in FIG. 1, the center of the crank is offset from the center of the device and, therefore, relative to the planes of the ribs; in fig. 5 is a view of FIG. one; in fig. 6 is a view of D in FIG. one; Fig. 7 shows the device in the working position at the moment of installation of the stiffener on the panel at an angle; in fig. 8 is a section E-E of FIG. 7; in fig. 9 is a section of an LF in FIG. 8,

The clamping device contains plates 1 and 2. The plate 1 is connected to the rod of the power cylinder 1 and 3; On the plate 1, the rocker arms 4 are fixed with the projections 5 and the guide holes 6.

Slabs 7 are mounted in the plate 2, at one end of each of which nuts 8 are installed, and the other levers 9 are fixed on the other. Nuts 8 are made with transverse holes 10 for the projections 5 of the rocker arms 4, In addition, stands 11 are mounted in the plate 2 placed in the guide holes of 6 rocker arms 4, racks

11, the pins 12 are fastened in which, by means of the axes 13, the stops 14 of the gripping levers 9, made in the form of an eccentric mechanism, are fixed.

Plate 1 is equipped with a crank 15, the center of which is mounted on the rod of the power cylinder 3 with the possibility of limited translational movement, and stops 16, limiting the rotation of the plate 1 relative to the crank 15.

The progressive movement of the crank 15 relative to the rod of the power cylinder 3 is limited by the gap k between the end of the rod of the power cylinder 3 and plate 1,

The clamping device operates as follows.

In the initial position, the ram of the power cylinder 3 is raised, the plate 2 and the plate 1 are at a maximum distance from each other, limited by the length of the cylindrical part of the struts 11. The clamping device is installed above the cassette with stiffeners (not shown). The levers 9 of the rods 7 are at this moment in the diluted position shown in FIG. 6

In the process of lowering the rod of the power cylinder 3, the plate 2 reaches the upper edge of the rib and stops, and the plate 1, continuing downward movement, carries the rocker arms 4 with the nuts 8 mounted on them.

The rocker arms 4 slide along the pillars 11, and the nuts 8 mounted on the protrusions 5 of the rocker arms 4 and unable to rotate, move progressively down along the threaded portion of the rods 7, cause the rods 7 to rotate until the gripping levers 9 reach the wall of the stiffener.

At the time of the movement of the plate 1 down with the plate 2 stopped, the vertical force acting on the stiffener is small. It is determined by force. mi resistance to movement of nuts 8 on the threaded part of the rod 7-.

After the levers 9 rest against the wall of the stiffener, the gripping of the rib from the cassette can be considered complete. In this position, the levers 9, squeezing the rib walls, are set at an angle oi. (Fig.9), exceeding the friction angle, which eliminates their jamming.

Between the eyelet 12 and the upper edge-centered position of the outrigger of the rocker arm 4, a gap is formed around the wall of the stiffener, combined (Fig. 8), into which a part of the extrusion with the marking line is inserted, since the centric of the eccentric mechanism is the stopper 14 levers 9, co-gripping the gripping levers 9 with the wall of the stiffener of the thrust between the lugs 12 and 20, the crankshaft 15 rotates and the yoke 4 and prevents the gripping device from being relative to the plate 1 relative to the plate 2.

Raise the clamping device with the power cylinder, remove the rib from the cassette. The edge cannot fall out of

mechanism, as it is its shelf

but the axis of the power cylinder. The pressing force at that, the crank 15, is transmitted from the end of the rod of the power cylinder 25 of the cylinder 3 to the platform of the upper part of the plate 1 located between the lugs 16,

rests on the upper edges of the reduced after sampling the gap K between them

levers 9, and turn the levers 9 erased (fig.Z).

The use of the proposed device 14.30 n ° compared with the known will allow

In this position, the rib transport - to increase productivity

tirovat device for setting the unit, and therefore reduce

on the line marking.

Lowering the clamping device with the power cylinder 3, put the edge on the panel, placed on the support, press the edge to the panel and seize it by welding. The more strongly the edge is pressed against the panel, the more strongly the edge is kept by treads 9 by 9 from tilting. Then, turning the eccentric of the stopper 14 removes the spreading of the bore 12 and the rocker 4. When lifting the clamping device with the power cylinder 3, plate 1 first rises, and along with it the rocker arm 4 and nuts 8. The latter cause the rods 7 with the levers 9 to turn. 9 ends at the moment when the upper edge of the rocker arms reaches the lug 12. After that, the entire clamping device is lifted.

The stiffener is completely free.

By moving the clamping device along the stiffener and stopping it in

the required position over the edge, the next pressing and welding of the edge to the panel is carried out. By tacking the rib along its entire length, the device is guided to the cassette to grip the next rib, after which the cycle of operation is repeated.

In the process of moving the device along the stiffener for tacking the trajectory of the axis of the ram 3 deviates from the marking line applied to the cloth. However, the gripper keeps

 centered position otlositelno wall stiffeners, combined with the line marking, as

when the gripping arms 9 come into contact with the wall of the stiffener 35

the complexity of the assembly for welding stiffeners with the cloth.

Claims (1)

Invention Formula A clamping device containing a power cylinder connected to a rod of a power cylinder to a traverse provided with rocker arms fixed to it with protrusions and guiding holes, a plate provided with struts placed in the guide holes of the rocker arms, mounted on a plate swivel rods with gripping levers and nuts in which holes are made for the projections of the rocker arms, and a stop for the position of the gripping leverage different so that, in order to increase productivity by self-installation of the plate with grippers along the axis of the product, Tr Eversa is equipped with a crank hinged on the ram of the power cylinder, and stops to limit the rotation of the traverse relative to the crank. bb one / g. 3 m -HI .0  at 1 th " Vida - / / 5/5 7 A /five Fig.8 fie.Z