DE8705887U1 - Turning device for beams with relatively high dead weight - Google Patents

Description

Heinzemänn 9078/87

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Turning device for beams with relatively high dead weight

The invention relates to a device for turning

Carriers, especially relatively high dead weight to

its longitudinal axis in order to bring the latter into the most favourable welding position for welding components.

Up to now, large and heavy beams have been turned into the most suitable position for welding

e.g. of head plates using a crane. However, this is relatively complicated, difficult and time-consuming.

In addition, the crane is in this case for other

Deployments blocked for a long time.

The object of the invention is to provide a device for

in the preamble of claim 1 specified type

the
create a much simpler, faster and

Turning the beams in a more precise position than was previously possible without having to use any lifting equipment.

Heinzemann 9078/87

-T-

The solution to this problem is characterized by at least one linearly effective and motor-driven conveyor intended as a carrier tray and at least two levers arranged in the transport area of the latter that can be pivoted independently of one another by motors, the common horizontal pivot axis of which is directed at right angles to the adjustment direction of the conveyor, furthermore both adjacent levers are arranged in the starting position facing opposite one another and at approximately the same level with the transport plane and are designed to optionally extend upwards from this position above the transport plane, enclosing an angle together and pivoting together in this position.

Thanks to these measures, the beams now only have to be placed next to one another by a crane or similar lifting device onto the conveyor in the direction of their longitudinal extension at right angles to the adjustment direction of the conveyor, after which the beams are fed one after the other to the levers on the one hand by means of the conveyor and on the other hand by means of the levers

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can be turned effortlessly and in the correct position without having to worry about an unwanted change in position because when the supports are turned, they are held securely in position by the levers between the lantern.

A preferred, simple and particularly advantageous design of the conveyor in terms of manufacturing technology consists in the fact that it is formed by two or more chain drives arranged at a distance from one another, fixed to the frame, which can rotate continuously and can be driven by a motor, with a plurality of drivers arranged distributed over the length of the chain and extending beyond slide rails aligned in the same direction as the chains, whereby the slide rails are also arranged at least approximately at the same level as the levers in the starting position.

It is also advantageous if the pivot levers are arranged approximately in the middle of the longitudinal extension of the chain drives including the slide rails, so that the carriers can also be transported away from the levers by means of the conveyor. ... , _ _r , - - - '. '

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Heinzemann 9078/37

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In order to ensure that the carriers are transported by the chain drives, it is also possible to temporarily lower the slide rails relative to the chain strands that are supported by the frame.

Further advantages, correct turning also
particularly long beams enabling designs
are disclosed in claims 4 to 5.

A variant of the conveyor that may be preferred is characterized in that it consists of several carriages that can be moved by motor at right angles to the axial extension of the lever pivot axis, which are also designed as traction carriages that can be driven by motorized chain drives that are fixed to the frame.

The use of rope drives is possible.

A preferred design and arrangement of the levers is , ',,',,,>&iacgr; characterized in that they are motor-driven &ldquo;&ldquo;. ,·, · > >

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drivable gear drives can be driven, whereby the drive wheel meshes with a toothed segment arranged on the lever, the center of which is arranged coaxially with the lever pivot axis, resulting in a stepless, heavy-duty and slip-free pivoting of the lever.

Further advantageous embodiments are characterized in claims 10 and 11.

Under certain circumstances, it may also be advantageous to assign working cylinders to the levers as motor actuators.

An advantageous further development which considerably simplifies the operation of the device is disclosed in claims 13 and 1A.

An embodiment of the invention is shown in the drawing and is explained in more detail below.

Show it:

Fig. 1 A schematic representation of a device for turning heavy carriers in the front ¹ -

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view) In the starting position* part-

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Fig» 2 a part of this device seen from above,
shown partially broken open.

This device essentially comprises _a linear and rectilinearly effective conveyor 1 which is fixed to the frame and at least two conveyors 2 which are pivotable on a frame 2 about a horizontal axis 3 to a limited extent independently of one another.

I Levers 4 and 5, which in their initial position are \

are arranged in opposite directions and with their upper sides g

flush with the transport plane of conveyor 1 |

close. The adjustment direction of the feed dog |

1 is arranged at right angles to axis 3. The |

Conveyor 1 is supported by two stationary [■

parallel to each other and spaced apart from each other and j.

formed by chain drives 6 arranged at the same level, p

of which only one is shown. &psgr;

Parallel to the latter is a slide rail,

7 arranged on the frame, which together provide the transport |

level. S

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The slide rails 7 each have a groove profile that is open at the top and in whose grooves the chain drives 6 are arranged. The chains have a plurality of carriers 8 that are distributed over their length and extend beyond the support plane.

The deflection wheels 9 and 10 of the chain drives 6 are rotatably mounted at the ends of the slide rails. The deflection wheel 9 serves as a drive wheel and is coupled to an electric drive motor 11.

In the chain drives 6 including slide rails 7, a pair of levers 4, 5 is assigned adjacently. The frame 2 of each pair of levers 4, 5 is designed as an approximately cuboid-shaped box, on the end walls of which the axis 3 is held, which carries the two axially non-adjustable levers 4 and 5.

Both levers 4 and 5 have a toothed segment 12 as a force arm, which meshes with a drive gear 13 that is rotatably mounted in the frame. The latter are each mounted on the output shaft 14 of an electric gear motor 15

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Heinzemann 9Ö78/87

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The slide rails 7 are intended as a support shelf and the levers 4 and 5 are approximately in the middle
the slide rail longitudinal extension. The length of each slide rail 7 is preferably several times greater than the length of a lever in order to
accommodate as many carriers as possible 16 and
after the components have been attached to the support 16,
To be able to store temporarily.

If a carrier 16 is placed on one end part of two
Distance between adjacent slide rails 7 so
been deposited so that the carrier 16 the slide rails 7
1 and 2, the carrier 16 can be transported to the left by means of the chain drives 6 so that the carrier 16 rests on both levers 4 and 5.

In this position, the essentially horizontal weld seams for connecting a hotplate, for example, can be easily made.

Then one of the levers 4, 5 is to be swung upwards, after which both levers in the case shown have a right

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Include angles.

Then both levers are to be pivoted synchronously so that '. &igr; one lever is lowered to the horizontal position and the other lever is placed vertically, after which the carrier

Has been turned 90° around its longitudinal axis, after which the now horizontal weld seams can be produced »

In this repeated manner, the carrier 16 can also be turned 360° around its longitudinal axis, whereby in the meantime the carrier can be adjusted transversely by means of the chain drives 6 so that the respective tilting

s edge of the support 16 at least approximately perpendicular to

the axis 3 in order to avoid excessive shock loads on the levers 4, 5 caused by the supports when turning the support.

However, it is also possible to lock the lever 5 in the position shown in the dotted line, provided that the position shown results in the most favorable welding position.

Heinzemann

9078/87

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Each angular position of the levers 4 relative to each other as well as of the lever relative to the slide rails 7 can be continuously adjusted.

In order to facilitate the control of the electric motors, proximity switches (not shown) can be provided that are fixed to the frame and act on the motors. These switches switch off the motors or automatically reverse the direction of travel once the desired position of the levers 4, 5 and/or the chain drives 6 has been reached.

All new individual and combination features disclosed in the description and/or drawing are considered essential to the invention.

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Claims (1)

1. Device for turning beams, in particular those with a relatively high dead weight, around their longitudinal axis in order to bring them into the most favourable welding position for welding components, characterized by at least one linearly effective and motor-driven conveyor (1) intended as a carrier support and at least two levers (4, 5) arranged in the transport area of the latter and pivoting independently of one another by motors, the common horizontal pivot axis (3) of which is directed at right angles to the adjustment direction of the conveyor (1), furthermore both adjacent levers (4, 5) are arranged in the starting position facing opposite one another and approximately at the same level with the transport plane and, optionally from this position, upwards above the transport plane ti Il i I * i H * iiit &igr;&igr; r I I 1*44 M Heinzemann 9078/87 extending, together enclosing an angle and in this position pivotable together * are formed. &bgr; 2. Device according to claim 1, characterized in that the conveyor (1) is supported by two or more t Distance between adjacently arranged frame-fixed endlessly rotating and motor-driven chain drives (6) with a plurality of carriers distributed over the length of the chain and extending beyond slide rails (7) aligned in the same direction as the chains * (8) are formed, wherein the slide rails (7) to the in the starting position the levers (4, 5) are arranged at least approximately at the same level. 3. Device according to claim 2, characterized in that the pivot levers (4, 5) are arranged approximately centrally of the longitudinal extension of the chain drives (6) including slide rails (7). 4. Device according to claim 2 or 3, ^{characterized} in that the pivot levers (4, 5) are arranged between two * · 4 * * ■ i 4 ii $ ii »j f ft im i/i till»! ti · Heihzemärin 9Ö78/Ö7 adjacent chain drives (6) including slide rails (7) are arranged* 5. Device according to claim 4, characterized in that two chain drives (6) together with sliding rails (7) are each assigned a pair of pivoting levers (4j 5), in particular each close to a chain drive. 6. Device according to one of claims 2 to 5, characterized by chain drives (6) which can be adjusted at a distance from one another, including slide rails (7)i 7. Device according to claim 1 ₁ , characterized in that the conveyor (1) consists of several carriages which can be moved by motor at right angles to the axial extension of the lever pivot axis (3), which are in particular also designed as traction carriages. 8. Device according to claim 7, characterized in that the carriages are designed to be driven via motor-driven chain drives or the like which are fixed to the frame. &diams;« till &igr;< I i · <· · · ,· r &iacgr;' j \'"l· 'i"'·■' i ir V V f ( if r Ii I r· &iacgr; it f Heinzemanri 9078/87 9i Device according to one of claims 1 to 8, characterized in that the levers (4, 5) are driven via motor-driven gear drives, the drive wheel (13) meshing with a toothed segment (12) arranged on the lever (4, 5), the center of which is arranged coaxially with the lever blade axis (3). 10. Device according to one of claims 1 to 9, characterized in that each lever (4, 5) is assigned its own motor drive (15). 11. Device according to one of claims 1 to 10, characterized in that brake motors adjustable in their direction of rotation are provided as the drive motor (15), to which reduction gears are arranged. 12. Device according to one of claims 1 to 11, characterized in that the levers (4, 5) are assigned working cylinders as motor actuators. 13. Device according to one of claims 1 to 12, characterized in that the motor actuators of the tieihäeman-n 9Ö78/87 Proximity switches are arranged on the lever (4» 5) and the conveyor (I) which limit their adjustment paths and/or influence their adjustment directions. Device according to claim 13, characterized in that the proximity switches are adjustably mounted on the frame along the adjustment paths*