SU740462A1 - Stand for assembling and welding frames - Google Patents

Description

However, rigid mounting of the clamps on a common shaft does not provide a reliable clamping element of the welded product at different points when it is uneven.

The purpose of the invention is to improve the quality, assembly and welding by ensuring uniform clamping of the product at all points.

This is achieved tbm that in the proposed construction, on the basis of parallel 10 shafts with clamps of the longitudinal elements of the product, two shafts coaxial with each other with the clamps of the transverse elements of the product and connected with the shafts of an additional pneumatic drive of their rotation are mounted; the shafts are made in the form of a rocker arm mounted on its rod with two different-sized snarling 20 rajviH rotated on it, mounted on the shafts of each of the coaxial shafts.

The clamps of the longitudinal and transverse components of the product, mounted on one of each coaxial shafts, are connected to the respective product stops and are fitted with the possibility of double-slit longitudinal movement.

On fng. 1 shows the proposed stand, top view; in fig. 2 is a section 30A-A in FIG. -1 in FIG. 3 is a section BB in FIG. 2

The stand for assembly and welding of frames contains base I, consisting of frame 2 and left 3 and right 4, mounted 35 on frame 2. Stand 3 is mounted rigidly on the frame, and stand 4 can be moved along frame 2 parallel to the longitudinal element 5 of the welded product . On thumbs 3 and 4, ry pairs are installed. 6 and 7 to base, respectively, the longitudinal 5 and transverse 8 elements of the product.

Based on the base, two coaxial shafts 9 and 10 with clamps and 12 longitudinal S elements of the product are mounted, as well as two coaxial shafts 13 and 14 with each other with clamps 15 and 16 of transverse 8 elements of the product. Shafts 1O and 14. are filled with spline. 50

Based on 1, a drive 17 is mounted of rotation of shafts 9 and 10 with clamps of longitudinal elements of the product and a pneumatic drive 18 of noEs0poTa shafts 13 and 14 with clamps of transverse elements of product & 55

LIAH.

Rocker arm 19 with two levers is mounted on the rod of each pneumatic actuator.

20 and 21 of various lengths, fixed on the torps of the shafts 9, 10, 13 and 14.

To compensate for the deviation of the trajectories of the levers in the rocker arm 19, a groove 22 is made.

With the shms 11 and 12 of the longitudinal elements of the product, they are connected to the shafts 9 and 1O through the connecting rods 23 with sliders 24, which are moved in the housings 25 fixed to the pedestals 3 and 4.

The housing 25 is mounted in rails 26 parallel to the axis of the shafts.

The supports 6, 7 for the product are mounted on the basis of, respectively, each wb; -1mu.

The need for the sliders 24 is due to the fact that the clamps 11 and 12 act on the longitudinal element 5 in the vertical plane parallel to the axis of the shafts, unlike the clamps 15 and 16, which act on the transverse element 8 in the plane perpendicular to the axis of the shafts On the body 25 a carrier 27 is fastened that connects the clamps 16 and 11, which are mounted for movement along the splined shafts 10 and 14.

When this clamps 16 and 11 through the moat of the housing 25 is connected with the corresponding lugs 6 and 7.

The stand works as follows.

The right bollard 4 by moving the frame 2, set and fixed to a size corresponding to the length of the longitudinal elements 5 of the welded product. Then, in the pedestals 3 and 4, the housings 25 are moved and fixed to a size corresponding to the length of the transverse elements 8. When the housing 25 is moved, it moves the splined shafts 1O and 14 along clamps 11 and 16. At the same time, the corresponding stops 6 and 7 also move together with the housing 25.

After the clamps are installed on the required dimensions of the welded frame, the longitudinal 5 and transverse 8 frame elements are placed on the stops 6 and 7, the pneumatic cylinders 18 are turned on, which by means of the shafts (the position 19 and the levers 20 and 21 turn the shafts with the clamps 11, 12, 15 and 16, pressing elements 5 and 8 to stops 6 and 7.

Claims (4)

In this case, the sliders 24 go down, pressing the longitudinal element 5 by the clamps 11 and 12 first to the horizontal and then to the vertical plane of the stop 6. When the longitudinal or transverse element of the clamping frame is uneven, they are installed in pairs to clamp one element repeatedly; temporarily. By stopping the rotation of one of the two clamps, the rotation of the second clamp is continued by further w & a rod of pneumatic cylinder 18 and rotation of the rocker 19 around one of the balls 20 or 21. The presence of the groove 22 in the rocker arm 19 compensates for the deviation of its path. After welding the frame, the pneumatic cylinders 18 return the clamps to their original position. Thus, the new design of presses installed in pairs on two axle shafts, one of which is mounted for movement along the shaft axis, connecting the transverse element and pressing the longitudinal element together to fit the transverse element of various sizes, gfy - This is ensured even when the assembled elements are nontransferable, uniform clamping of the product at all points, which improves the quality of assembly and welding. Claim 1. A stand for assembling and welding frames, comprising two coaxially mounted shafts mounted on the base with clamps of longitudinal elements of the product, pneumatic drive connected to them, rotation of the shafts, as well as corresponding supports for each clamp. to ensure the quality of assembly and welding by ensuring uniform clamping of the product at all points, on the base parallel to the shafts with the clamps of the longitudinal elements of the product, mount two shafts coaxially with each other with the clamps echnyh elements article and connected to an additional pneumatic drive shafts of rotation, the connection of each actuator with the respective shafts Bk is satisfied as it schtoke mounted on the rocker with the two pivotally - mounted thereon raznovelikie levers fixed to the ends of each of coocHbix interconnected shafts. 2. Stand pop. 1, characterized in that, in order to ensure the assembly and welding of frames of various sizes, the clamps of the longitudinal and transverse elements of the product, mounted on each of the coaxial shafts, are connected to their respective product stops and are installed with simultaneous longitudinal movement. Sources of information taken into account in the examination, 1.Nikolaev A. A. Calculation, design and manufacture of welded structures. M., Higher School, 1971, p. 435437. 2. USSR author's certificate number 544528, class, 23 K 37 / O4, 1977. 3. USSR author's certificate number 518312, cl. B 23 C 37/04, 1976. I 4. USSR author's certificate Co 253277, cl. B 23 K 37 / O4, 1969 (prototype). f6