CS198913B1 - Positioning equipment,especially of plate girders by welding - Google Patents

Description

The invention relates to a positioning device. in particular, full-walled beams during welding and their moving, inverting and positioning.

To date, devices are known which are characterized in that the component is clamped at both ends into fixtures and rotates about a longitudinal axis. These devices are suitable for parts where the deflection of own weight can be neglected. In other devices, support disks are mounted temporarily at the ends of the handled component, which roll on rollers, some of which are drive rollers. These devices are generally single-purpose, their main disadvantage being the relatively considerable time losses in fixing and removing the support disks. Also known are devices in which the component is deposited without clamping on a series of endless chains extending transversely to the longitudinal oee of the component; if the chains are driven, the part rotates. The disadvantage of these devices is that the safe rotation of the components occurs only if its cross-section is square. Also known is a device for handling and non-rotating components formed by reversing arms, one end of which is pivotally attached to a vertical support bracket. The central part of each invert arm is pivotally connected by an 8 lever rotatably mounted on the crankshaft journal. Furthermore, the device is formed by inclined guide walls provided in its upper part with rollers with auxiliary arms, to whose upper ends the rollers are attached to support the object during its tilting. By turning the crankshaft, the levers lower the invert arms and an object that hits the guide walls with its edge. The action of pulleys a

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188 813 by tilting the arms further, the article turns aai by 90 ° and tilts the guide walls. By further rotating the crankshaft, the lever lifts the inverting arms and the object that moves along the inclined edges of the guide walls and rollers until it is extended to the horizontal surface of the table. This turns the object 180 °. A disadvantage of the device is that it is not suitable for handling e objects of more complex shapes, such as I-beams and the like. Furthermore, the preform is poorly accessible for welding from above.

These disadvantages are avoided by the positioning device, in particular of solid-walled beams in the welding process according to the invention, formed by pivoted arms. It is an object of the invention that the arms of the first row and the arms of the second row, which are supported on their support pins by longitudinal axes lying on a common line, are arranged in two opposite rows and are provided with toothed segments the arms mounted on the drive shaft of the first row of arms and the drive shaft of the second row of arms. Between the support pins of the first and second rows of arms, with their wheels mounted on horizontal dilutions perpendicular to the longitudinal axis of the support pins of the first and second rows of arms, individual carriages are connected, connected by their pulling elements. In the initial starting position of the first row arms and the second row arms, their upper bearing surfaces are below the level of the dossing surfaces of the carriages.

An advantage of the device according to the invention is that the object of any profile can be rotated around the longitudinal oey to any position and is accessed from above, the object being transversely moved. Another advantage is that after folding both rows of arms to the initial (horizontal) position, the device is placed on the floor of the clay floor and its surface can be used for other purposes.

BRIEF DESCRIPTION OF THE DRAWINGS The accompanying drawings show an exemplary embodiment of a positioning device according to the invention, wherein FIG. 1 shows its front views in a starting position, FIG. 2 its plan view and FIGS.

The welding device according to the invention, in particular of full-walled beams, consists of arms 2, 2 of the first and second rows, which are mounted on their horizontal bearing pins 11, and which are arranged in two opposite rows. The longitudinal axes of the support pins 1, 1 * of the first and second rows of arms 2, 2 lie on a common line. The end of each arm 2, 2 O ^e £ toothed segment which is in engagement, the pinion 2 e »5 'respectively to the first or second series of the second arm 2» mounted on the drive shaft 6 of the first driveshaft or the second series arm 2 2 t 2 · between the support pins 1, 1 'of the first and second series arm 2 _t 2 are disposed on its wheels vodorovnýoh lines perpendicular to the longitudinal OEE support pins 1, 1' .The first and the second series arms 2, 2 respectively arranged carriage 8, coupled with with its pulling element 2 formed by a chain.

The traction element 2 from the carriage 8, via the sprocket 10, is secured to its continuous drive shaft 11 under the carriage 8 and longer through the free guide pulley 12 back to the second carriage 2. Alternatively, the ends of the first and second rows of arms 2 may be 2 coupled to a power roller.

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The component is mounted horizontally on the carriages 8 (FIG. 3), which are in the leftmost position, then lifted and rotated by the arms 2, 6 of the first and second rows, which make an angle of 90 °. Meanwhile, the carriages 8 will slide under the raised part to the rightmost position (FIG. 5) and the arms 2, 6 of the first and second rows will lower the part onto them (FIG. 6). Then, the left (raised) arms 2 of the first row are tilted to their initial horizontal position (Fig. 7) to allow the carriage parts 8 to be moved to the left (Fig. 8). Then, the right (lying) arms of the second row are erected in a vertical position (Fig. 9) and by acting together of the two arms 2, 4 of the first and second row the part is rotated and lifted (Fig. 10) so that the carriages 8 can move to the rightmost position (fig.11). This is followed by the final folding of the arms 2, 6 of the first and second rows of components onto the prepared trolley 8 (FIG. 12). The part is horizontal but rotated 180 ° from the starting position.

Claims (1)

SUBJECT OF THE INVENTION Positioning device, in particular of solid-walled beams, in the form of swinging arms, characterized in that the arms (2) of the first row and arms (3) of the second row are supported on their support pins (1,1) 'with longitudinal axes lying on a common line are arranged in two opposite rows and are provided with toothed segments (4) engaging the pinion (5 »5 ') of the first and second rows of arms (2, 3) mounted on the drive shaft (6) of the first belt row (2) and the drive shaft (7) of the second row of arms (3), wherein between the support pins (1, 1) of the first and second row of arms (2, 3) they are supported by their wheels on horizontal guides perpendicular to the longitudinal axis 1, 1 ') of the first and second rows of arms (2, 3), individual carriages (8) connected to their pulling elements (9) are provided, wherein in the initial starting position of the arms (2) of the first row and the arms (3) of the second row , their upper bearing surfaces are below interest the seating surfaces of the trucks (8).