DD200868A1 - AUTOMATIC POSITIONING DEVICE FOR ASSEMBLING INDIVIDUAL PARTS - Google Patents

Abstract

The invention relates to an automatic positioning device for mounting of individual parts for mainly round fits with press and play seats. An application of the device is seen especially in the assembly. It is everywhere economically applicable, where the positioning and joining to be joined items to be automated with play or interference fit. The device consists essentially of a basic body, in which there is a compensation system, consisting of upper, middle and lower part with interposed, arranged around a central axis and in the same direction poled magnetic cores. The magnetic cores can consist of permanent magnets and are supported by annular grooves in the compensation system. At the bottom there is a flange for connection to known grippers or tools. The magnetic cores guarantee an automatic securing of the zero position of the compensating system due to their synchronous polarity. figure

Description

233536 \

Automatic positioning device for the assembly of individual parts

Field of application of the invention

The invention relates to an automatic positioning for Hontage of individual parts, preferably made of metal, with play or Preßpassung.Die invention is mainly in machine and vehicle and 'precision engineering application, preferably in the automatic assembly of parts with a round fit.

Characteristic of known technical solutions

In automatic joining, in particular by means of industrial robots, between the joining axes of parts to be joined unacceptably large deviations from the nominal position. Therefore, controlled and uncontrolled positioning mechanisms have been developed with which a match of the joining axes of the individual parts to be joined by mechanical, electro-mechanical or pneumatic Balancing is achieved. A pneumatic positioning is z. B. in the WP B 25 J /

219554 and WP B 25 j / 221? O5 beschrieben.Dabei air pressure changes are converted to nozzles at joints in control commands for pneumatic cylinders, so that a required radial position compensation can take place. Also known is a pneumatically acting device for compensation of axial dislocations in the automatic assembly of small parts, wherein the compensating movement of the compensation device by means of a Luftpol-,

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sters takes place and after realized leveling the parts of the balancing device are electromagnetically fixed.

The disadvantage of the devices described is that they require additional power supply, have a complex structure, thus are relatively susceptible to interference and also compensate only Achsversetzungen.

Object of the invention

The invention has the goal to enable automatic, technologically safe and low-cost positioning and joining parts to be joined with play or interference fit, thus effectively save labor and increase the productivity and quality of the joints.

Explanation of the essence of the invention

The invention has for its object to provide an automatic positioning for the assembly of single parts, through which an automatic, technologically safe and low-cost positioning and joining of individual parts is made possible both with clearance and with interference fit.

This object is achieved by applying the principle of movement around a Momentanpol and using air and magnetic pads, characterized in that the automatic positioning for assembling items essentially from a body in which a compensation system to compensate for angular deviations and offsets of The upper part of the balancing system is fixedly connected to the base body and a support of a working unit. Magnetic cores and / or magnetic fields, which are poled in the same direction and around a central axis to the

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translational and rotational compensatory movements about a low-lying instantaneous pole are possible. The cohesion of the equalization system is determined by magnetic bodies or magnetic fields located at the bottom of the base body or by a Tie rod of the central axis of the equalization system gewähr.Um the central axis, arranged in the same poled magnetic cores or magnetic fields on the central part and lower part of the compensation system and the body ensure an automatic securing a positioning and a zero position of the compensation system. The magnetic cores can be designed both as permanent magnets and as electromagnets, the electromagnets also serve simultaneously the positional fixation and the cohesion of the compensation system. The smooth running of the compensation system can also by air cushion in, incorporated into the front sides of the upper part, middle part and lower part of the compensation system, Ringnuten werden.Des further, the magnetic cores can also be designed as a combination of permanent magnets and electromagnets; also combinations of all mentioned principles are possible.

embodiment

The invention will be described in more detail below with reference to an exemplary embodiment with reference to a drawing, which shows the automatic "positioning device for the assembly of individual parts in section." The automatic positioning device for the assembly of individual parts consists essentially of a basic body 4, in which Compensation system, consisting of an upper part 1, a "middle part 2 and a lower part 3, is arranged, wherein the lower part 3 is still a flange 5 for receiving grippers or tools. The upper part 1 of the compensation system is fixed by fastening screws 13; 14- connected to the main body 4 and a carrier 10 of a working unit.

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At the contacting end faces 15 -between upper part 1, middle part 2 and lower part 3 of the compensation system annular and in the same direction poled permanent magnet magnetic cores 6 are arranged, which act repulsive on each other due to their polarity and significantly reduce the frictional forces between the contact surfaces 16 of the magnetic cores 6 and thus translational and rotational compensation movements of approximately - 2 mm and ~ 2 degrees to a low center of instantaneous ermöglichen.Der cohesion of the compensating system is gewährleistet.Ebenfalls annular and in the same direction poled arranged by a tie rod 12 permanently magnetic cores 8 on the central part 2 and the lower part 3 of the compensating system as well as at the base. Body 4 guarantees a permanent guarantee of a zero age or the cohesion of the equalization system.

Claims (4)

-5 233536 I. Invention claim 1.Automatic positioning device for mounting of individual parts using the principle of movement around a Momentairool and using T _: i) ft-5 'upholster and magnetic cushions, characterized in that the automatic positioning device for the assembly of parts substantially from a Main body (4-), in which a compensation system is arranged to compensate for angular deviations and axial dislocations of individual parts to be joined, wherein the compensation system of an upper part (1), a central part (2) and a lower part (3) with a flange ( 5) for receiving tools or grippers and the upper part (1) of the compensation system with the main body (4-) and a support (10) fixedly connected to a working unit, and that magnetic cores (6), the poled in the same direction and about a central axis (11) at the contacting end faces (15) between the upper part (1). Middle part (2) and lower part (3) of the compensation system are arranged, which allow a translatory and a rotatori-s-che compensating movement about a low-lying instantaneous, and in that the cohesion, the compensation system by a tie rod (12) of the central axis (11) or is ensured by magnetic cores (8) located on the lower part of the base body (4) and in that the magnetic cores (8) arranged around the central axis (11) and in the same direction polish (8) on the middle part (2) and on the lower part (3) of the equalization system as well as on the base body (4 ·) guarantee an automatic securing of a positioning and a WuIlage the compensation system. 2.Automatic positioning device for the assembly of items according to item 1, characterized in that the magnetic cores (6; 8) consist of electromagnets, .35 These also serve to fix the position and the cohesion of the compensation system. 23 3 53 3 «Automatic positioning device for assembly of items according to item 1, characterized in that the magnetic cores (6; 8) are designed as a combination of permanent magnets and electromagnets. 4-.Automatic.Positioniervorrichtung for assembly of items according to item 1, characterized in that the ease of the compensation system by air cushion in annular grooves (7) in the end faces (15) of the upper part (1), middle part (2) and lower part ( 3) of the balancing system are incorporated, is supported. For this Ί β / off