SU823049A1 - Stand for assembling for welding frame-beam articles - Google Patents

Description

The invention relates to three-technological equipment of welding production, in particular to devices for assembling and welding of beam structures, for example, for assembling and welding of spinal beams at car-building plants.

A well-known stand for assembly for welding beams, a containing deflection mechanism with a support for the beam, and beam clamps to the support £ 11.

The disadvantage of the stand is the deformation of the cross section of the beam in the place of greatest deflection in the center of the beam, since the cross section of the beam during deflection is not clamped.

Also known is a stand for assembly for welding, frame-beam products, containing a pre-deflection mechanism mounted on the base with supports for the product, deflection limits of the product, swing brackets for clamping the ends of the product, and clamps for the product £ 2].

A disadvantage of the known stand is the design complexity, the presence of a large number of mechanisms and complex electrical and hydraulic automation, which ensures the sequential operation of the beam clamps and the operation of the lifting clamps and drives of the beam preliminary deflection mechanism, due to which the reliability of the stand is low.

’The purpose of the invention is to increase the productivity and reliability of Zak. replicating the product by simultaneously bending and pressing the product.

., The goal is achieved by 'θ in that, on the basis of the grooves are made, the longitudinal axes of which are perpendicular to the plane of the support of the mechanism of preliminary deflection of the product, each clamp is made in the form of a set 15 in. corresponding to the base groove with the possibility of moving the axis, spring-loaded relative to the base, and mounted on the specified axis of the clamping lever with a counterweight, 20 mounted with the possibility of rotation in a plane perpendicular to the support of the mechanism of preliminary deflection of products, while adjustable supports are fixed to the support, interacting with clamping levers ¹ clamps.

In FIG. 1 shows a stand, a general view; in FIG. 2 - the same, top view;

in FIG. 3 - section AA in figure 1; in FIG. 4 is a section BB in FIG. 3; in FIG. 5 - section bb in figure 1,

The stand contains a base 1, a clamping mechanism for zeta profiles 2 mounted on it, rotary brackets 3 for clamping the ends of the I-beams, slip brackets 4 with limiters 5 deflection, mechanism 6 for preliminary deflection of the beam with a support 7, equipped with adjustable stops 8. Base 1 , there are cheeks 9 with grooves 10, the longitudinal axis of which is perpendicular to the supports 7.

Axes 11 are also secured by a double locking mechanism 16

The clamps are made in the form of axles 11 installed in the grooves 10 with clamping levers 12 mounted on them with counterweights 13 and are spring-loaded with 14 <novations, on which; catcher 15 beams and, brands in length. All 1 puppies with pneumatic clamps

The stand works as follows.

A beam (pre-welded zeta profiles) is fed to the steved and fixed by a catcher 15. Then, the mechanisms for clamping the shelves of the zeta profiles are turned on. 2. An I-beam is fed and installed on the beam using a latch 16. Using pneumatic cylinders, rotate the brackets 3 to clamp the ends of the I-beam. The jib brackets 4 with jaw deflectors 5, which are pre-set with a predetermined deflection curve, are drawn jQ. After that, the mechanism of preliminary beam deflection is turned on. The supports 7 are lifted with the stops 8, which rotate the clamping levers 12 on the axles 11 until they stop in the shelves of the z-profiles, forming the theme: supports 7 - stops the product.

The axes are held in the springs by springs 14. When lifting the supports 7 and deflecting the beam, the levers 12, clamping the cross section of the beam and preventing the shelves of the z-profiles from diverging, rise synchronously with the deflection of the beam on the axes 11 in the grooves 10 of the base 1, stretching the springs 14. After reaching the maximum deflection , which is given by the installation curve of the limiters 5, the lifting stops and is made to the beam.

Thus, the beam section press is closed sys8, the levers 12 40 are the lower, the next, the next weld of the I-beam, the beam is deflected and the drive is carried out by one drive. After the end of the I-beam welding, the mechanisms return to their original position. When lowering the supports 7, the clamps 12, having reached the extreme position, rotate around the axes 11 under the action of the counterweights 13. After this, the beam is released and removed from the stand.

The clamps 12, turning around the axes 11, located in the grooves of the base 1, under the action of the adjustable stops 8 mounted on the support 7 of the preliminary deflection mechanism, clamp the flanges of the zeta profiles, creating a closed system, and also move together with the axes 11 in the grooves when the beam is deflected. The beam cross section is clamped during deflection and deflection from a single drive, which greatly simplifies the stand design, increases the clamping reliability and productivity.

Claims (2)

(54) STAND FOR ASSEMBLING UNDER WELDING-FRAME-BALL PRODUCTS FIG. 4 shows a section BB in FIG. 3 in FIG. 5 shows a section B-B in FIG. 1, the Stand comprises a base 1, a mechanism for clamping Z-profiles 2, rotary brackets 3 for clamping the ends of the I-beam, ring brackets 4 with limiter 5 deflection, mechanism 6 for deflection of a beam with support 7 mounted on it. equipped with adjustable stops 8. The base 1 has cheeks 9 with grooves 10, the longitudinal axes of which are perpendicular to the supports 7 Clamps are made in the form of 11 axes 11 installed in the grooves 11 with clamping levers 12 with counterweights mounted on them 13. Axis 11 is spring-loaded with springs 14 relative to based and, on which are installed also the safety device 15 beams and the latch 16 I-beams in length. Aircraft mechanisms are equipped with pneumatic actuators. The stand works as follows. A beam is fed to the stand (pre-welded Z-profiles) and fixed with a safety device 15. Then the mechanisms for clamping the shelves of the Z profiles are turned on 2. An I-beam is fed and installed on the beam by means of clamp 16. Swivel brackets of 3 I-beam ends are pushed over the beam. Slip-on staples 4 with deflection limiters 5, which are pre-exposed along a predetermined deflection curve. After this, the mechanism 6 of the preliminary deflection of the beam is activated. Supports 7 raise | ots with stops 8, which turn the clamping levers 12 on the axis x 11 up to the stop in the shelves of the Z-profiles, form a closed system; bearings 7 - stops 8, levers 12 product. The axles are held in the lower position by the springs 14. With further raising of the supports 7 and deflection of the beam, the levers 12, holding the beam cross section and not allowing the shelves of the Z-profiles to disperse, rise synchronously with the deflection of the beam on the axle 11 in the slots 10 of the base 1, stretching the spring 14 After reaching the maximum deflection, which is defined by the curve of setting the stops 5, the lift stops and the I-beam is welded to the beam. Thus, the deflection of the beam and the beam section of the beam is carried out by one drive. After the completion of the Wutaur welding, the mechanisms return to their original position. When lowering the supports, the clamps 12, coming to extreme polo, turn around the axes 11, one by the action of the counterweights 13. Thereafter, the beam is released and removed from the stand. The clamps 12, turning around this 11, located in the slots of the adjustment 1, under the action of adjustable pores 8 installed on the support 7 of the preliminary deflection mechanism, press the shelves of the Z-profiles, create a closed system, and also move together with the axes 11 in the slots of the deflection beams. The clamping of the cross-section of the beam during deflection and penet is carried out from a single drive, it greatly simplifies the design of the tende, improves the clamping reliability and performance. Claims The stand for assembling frame-beam products for welding includes pre-deflection mechanisms mounted on the base with a product support, product deflection limiters, swivel clamps for clamping the ends of the product and clamps for the product, characterized in that fixing the product by simultaneously bending and pressing the product, on the basis of the grooves are made, the longitudinal axes of which are perpendicular to the plane of the support of the device’s preliminary deflection mechanism, each This clamp is made in the form of an axis installed in the corresponding slot of the base with the possibility of movement and spring-loaded relative to the base, as well as a clamping lever with a counterweight mounted on this axis with the possibility of rotation in a plane, perpendicular to the support of the mechanism of the preliminary deflection of products, while the support is fixed adjustable stops, interacting with the clamping levers of the respective clamps. Sources of information, -f taken into account in the examination 1. The author's certificate of the USSR 508373, cl. B 23 C 37 / 04.03.06.74. 2. USSR author's certificate number 570470, cl. At 23 K 37/04, 03.05.73.