SU1512745A1 - Tilter - Google Patents

Abstract

The invention relates to an assembly and welding industry, in particular, to devices for tipping large-sized products such as box beams of low rigidity. The purpose of the invention is quality improvement. The tilter contains groups of tilting platforms 1 with L-shaped lodgments 3 and curvilinear supporting surfaces made in sections 4 and 5 of different curvature. The platforms are mounted on roller supports 6. When the product is rotated counterclockwise, both groups of platforms are mounted with cradle 3 to the right. Rotate the platform of one group counterclockwise by 90 ° C. At the same time, due to the curvilinear supporting surface of the platforms, simultaneously with the rotation of the product, its displacement along the lodgment 3 of another platform group is also performed without deformation. To further rotate the product turn another group of platforms, etc. 5 il.

Description

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Rotate the platforms of one group counterclockwise on. At the same time, due to the curvilinear supporting surface of the platforms, simultaneously with the rotation of the product, its displacement along the lodgment 3 of another platform group is also performed without deformation. To further rotate the product turn another group of platforms, etc. 5 il.

The invention relates to an assembly-welding industry, in particular, devices for tilting 180 large-sized items such as box beams of low stiffness during assembly-welding operations.

The purpose of the invention is to improve the quality by reducing the deformation of products when canting.

Figure 1 shows a tilter j in figure 2 - section A-A in figure.} In figure 3 - section B-B in figure 1; figure 4 is a section bb In figure 1; Fig. 5 is a scheme for constructing a curvilinear support surface of the platform.

The tilter contains two groups of turning platforms 1 and 2 with L-shaped cradle 3 and curvilinear supporting surfaces made in the form of sections and 5 of different curvature, the curvature of each section of one platform group being equal to the curvature of the opposite section of another platform group. Kantuyu platforms 1 and 2 are installed on the role of co-opors 6.

Alternate rotation of each group. Platforms 1 and 2 are driven by a drive 7, connected via shaft 8, screwed couplings 9, gears 10 and a gear wheel 11 to the toothed rim 12 of platforms 1 and 2. Transmission can be performed on the gear box.

The central angle of the sections 4 and 5 of the curvilinear support surface of the platforms 1 and 2 is made equal to the central angle between the roller supports 6. As an example, the construction is shown for the turner, whose canting platforms have the initial radius of the contour of curvilinear surfaces R 5300 mm, with the positioning of the turntable supports spaced at an angle of 2aL 100 °, with a distance between the vertical sides of the L-shaped beds in two flanging platforms, rotated one relative to the other by an angle of 90 (or

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Delhi) and 1000 mm. The positions of the swinging platforms when turning them through an angle are considered, and from O to 90 ° every 15 °.

When turning the tapping platform with a square with a side and relatively stationary l-shaped lodgement of the second platform from O to kS °, the center of rotation of its O moves up along its diagonal by the value of b, with a further rotation from 45 to 90 ° the center of the same diagonal returns to initial position. The L-shaped platform, at the same time as the turn, must move in two mutually perpendicular planes. The radii R and R of curvilinear surfaces interacting with the supports of the tilting device and ensuring the rotation of one turning platform with the product relative to another are determined at each turning point of triangles and 00, A, respectively

where 001 b- is the amount of movement of the center of rotation when the angle of rotation of the platform increases from 0 to 90% OA and OD R is the radius of the initial contour of curvilinear surfaces;

  R, is the radius of one curvilinear surface in

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..each the point;

0, And the radius of another curved surface at each point.

Rj VR2 + L2 - 2Rb, -cos (135 + o () 2;

R

 , -cos (l35-o “f) 2.

The angle cOj at the vertex A between the radius of the initial contour R and the radius of the curve R is determined by the formula

cos

R2 + RJ, - bf.

nor b.

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The magnitude of the rotation of the center of rotation is determined from the triangle

B, - atsinCtS + f) - sinifS.

Curves are constructed as follows.

A beam is conducted from the center of O, which connects it to the point of contact A of the turning platform and support. This will be the starting point of the curved surface. The end point G lies on a ray drawn at an angle of 90 to this ray.

In the initial ones at y Oh

R

R

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 R and O) O

end points

 R

radii

H 90 and rays

and

the curves coincide with the rays of radii R i. OA OG OA OG, R.

The radii of curvilinear surfaces at each point are determined, the rays from the center O are drawn at an angle j, + W. from the initial ray, and the radii at each point are deposited on them. The points obtained are joined by a smooth curve.

Thus, the segments OB, OS, OD OE and OF (FIG. 5) are variable radii of curvilinear surface 5 at rotation angles of 15, 30, 5, 60, and 75 ° j, respectively, OD ,, OD ,, OE, and OF, respectively, the variable radii of a curved surface at the same angles of rotation of 15, 30, 5, 60 and 75

Tilter works as follows.

If it is necessary to turn the product counterclockwise, the bending platforms 1 and 2 of both groups are installed with L-shaped cradle 3 to the right (Figures 2 and 3), after that the product is installed into the cradles.

. With the actuator 7, the tilting platforms 1 of the first group are turned anticlockwise by 90 °. For this clutch 9 on the shaft 8 is turned to the left, rotation through gears 10 and gear 11 is transmitted to the turning platform 1. .

Due to the interaction of the supports 6 with curved surfaces 4 and 5, the L-shaped cradles simultaneously with the rotation of the product move it relative to the stationary bevels. Platform, RM 2 up and right when turning from O to tS and down and left when turning from 5 to 90 °. /

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When rotated by the next 90 ° (i.e. by .80 °), the actuator 7 turns the tilting platforms 2 of the second group counterclockwise by 90. For this clutch 9 is switched to the right. Due to the mutual displacement of curvilinear surfaces at the turning platforms 2, the product moves up and to the left (from 90 to 135) up and to the left and turns 45 and 90 (from 135 to iSo) down and to the right when turning from 45 to 90.

When the product is rotated clockwise, the beveling platforms 1 and 2 are installed with 3 G-shaped lodgments to the left. The product is rotated clockwise, first with the tilting platforms 2 and then with the tilting platforms 1.

When tilting, the product with its faces alternately lies on one of the groups of tilting platforms. Curvilinear surfaces are built along a side of a square with side a, the vertices of which, when the product rotates along a tangent, slides along the sides of the L-shaped platforms, and the faces lie motionless on the rotating platforms without touching the fixed platform.

Since practically the products are made with beveled or rounded tops, the tops of the products will not touch the sides of the fixed L-shaped lodgments. Consequently, the deformation of the product when turning over is excluded. Formula .and, acquisitions

A tilter containing mounted on the base of the roller, mounted on the roller of the group of coaxially arranged cornering platforms with -G-shaped lodgments for products and curvilinear bearing surfaces for the roller supports and rotational drives of the platforms, characterized in that, in order to improve quality by reducing deformations of products when canting, the curvilinear supporting surface of each platform is made in the form of two sections of different curvature, while the central angle of each section is made equal to cent the angle between the rollers and the curvature of each section of one group of platforms is equal to the curvature of the opposite section of another group of platforms.

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Claims (1)

Formula and. inventions A tilter comprising mounted on the base of a roller support, mounted on roller supports of a group of coaxially located overturning platforms with L-shaped tool holders for products and curved support surfaces for roller bearings and platform rotation drives, characterized in that, in order to improve quality by reducing deformation during tilting, the curved supporting surface of each platform is made in the form of two sections of different curvature, while the central angle of each section is equal to th central angle between the carrying rollers, and the curvature of each group * uchastka.odnoy platforms made equal to the curvature of opposite him portion of another group of platforms.