DE2164087A1 - DEVICE FOR STEP-BY-STEP MOVING AND POSITIONING OF OBJECTS - Google Patents

Description

Device for moving and positioning objects step by step The invention relates to a device for stepwise advancement and positioning of objects in which the movement of the objects through a transport rail causes a square movement (forwards, downwards, backwards, upwards) executes and takes the objects to be moved with it during their forward movement.

In the mass production of small parts, e.g. electronic components, it is necessary to successively carry out manufacturing measures on the individual components to perform, e.g.

Make measurements, including the small parts individually and in a defined Position step by step from working device to working device (e.g. a measuring device) need to be transported. There are already known devices in which the Small parts from the gaps in a toothed sports rail recorded, can be transported one position further and stored in holding rails. The transport rail performs a square movement (forwards, downwards, backwards, upwards), the vertical steps of the toothed transport rail for picking up or Depositing the small parts and the horizontal steps of the further transport of the small parts or return the empty transport rail. In order not only to transport small parts, but also to be positioned exactly in a storage device, it is necessary to that this square movement of the transport rail is carried out very precisely; at the The transition from vertical to horizontal movement may be the path taken by the transport rail describes, have no rounded corners, but must be exactly angled.

Because of this, the transportation of small parts are accelerating Limits are set which, for purely kinetic reasons, cannot be exceeded.

The invention is based on this disadvantage of the known Device to eliminate and the movement of small parts while maintaining to significantly accelerate an exact square movement of the transport rail.

According to the invention, this object is achieved by a second, identical transport rail solved, which is driven in push-pull to the first transport rail so that they are to be moved during the backward movement of the first transport rail Takes items.

The advantages achieved with the invention are in particular: that the work cycle time of a device for moving and positioning Small parts can be shortened by half without affecting the accuracy of the sequence of movements the transport device (transport rail) impaired by this acceleration will.

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

1 shows the perspective view of two transport rails between two storage rails for the small parts to be positioned Fig. 2 is the plan view the drive device for the horizontal movement Fig. 3 is the side view of the Drive device for the vertical movement Fig. 4 is a plan view of the two Transport rails with driving blocks and guide slots for horizontal movement 5 shows the perspective view of two transport rails between two storage rails for the small parts to be positioned, the working level of the two transport rails is rotated by 900 compared to the illustration in FIG.

1 shows the two transport rails 1 and 2 with the gaps 31 and 32, which are intended to accommodate the small parts 16 to be transported, in a vertical arrangement.

After each transport step, manufacturing measures are carried out on the transported To be able to make small parts 16, the small parts 16 are on the storage rails 4 stored in defined positions. The small parts 16, e.g. electronic components, can the transport rails 1 and 2 starting from a pile by means of a Vibratory vibrator filler in an orderly and directed manner, standing vertically or horizontally and fed in individually.

The sequence of movements of the two transport rails 1 and 2 takes place after following scheme: During the transport rail 1 an upward movement performs and thereby lying on the storage rails 4 with their gaps 31 Detected small parts 16, the transport rail 2 performs a downward movement, whereby Small parts 16 located in the gaps 32 of the transport rail 2 on the storage rails 4 have been filed. The forward movement that follows in the movement diagram the transport rail 1 causes the small parts 16 to be transported to the next Position on the storage rails 4. With the forward movement of the transport rail 1 runs parallel to the backward movement of the transport rail 2, the gaps 32 Now do not carry any small parts 16. The subsequent downward movement of the transport rail 1 causes the storage of the small parts 16 carried along in the gaps 31 on the storage rails 4, while the parallel upward movement of the transport rail 2 is a recording the small parts 16 in the gaps 32 result.

In Fig. 1 is on the transport rails 1 and 2, the movement diagram of the two rails shown; The size and direction of the paths are given by the vectors 1 - 4 shown, the paths covered at the same time by the transport rails 1 and 2 are identified by the same numbers.

Dwell times are required at the endpoints of the movement in order to achieve a to be able to effect an exact deflection of the movement.

These dwell times come in the horizontal movement area Processing times for processes that are carried out on the positioned small parts 16 should be.

In the exemplary embodiment described here, the work cycle time is 170 each in the horizontal movement area. 1013 sec, with a path of 18 mm is run through.

The length of the path is determined by the dimensions of devices, with those on the small parts 16, different from position to position, manufacturing processes of any kind.

The work cycle time in the vertical movement area is in each case 130 10 3 sec, whereby a distance of 6 mm is covered. The length of this path is necessary to ensure the horizontal movement of the transport rails 1 and 2 to be able to carry out unhindered by the storage rails 4.

From Fig. 2 it can be seen in what way the horizontal movement of the two coupled transport rails 1 and 2 can be effected. The back and forth Movement of an air piston 6 causes a rotary movement via the toothed segment with lever 7 by 180 ° of the drive head 8, on which two cranked connecting straps 9 can be rotated are attached, which in turn are connected to the two transport rails 1 and 2 again are. Through the 1800 rotation of the drive head 8, the two transport rails 1 and 2, as can be seen, perform a push-pull back and forth movement.

3 and 4 show how the vertical movement of the two transport rails 1 and 2 is effected.

An air piston 10 pivots via a lever system 11 (lever, articulated rod with articulated head) a double lever 12 in front or

return. On the two legs 13 of the double lever 12 are rotatable Driving keys 14 arranged in guide slots 15 of the two transport rails 1 and 2 intervene.

Due to the rotatability of the driving keys 14 is with every movement, which run the transport rails 1 and 2, an even guidance of the transport rails 1 and 2 within the guide slots 15 guaranteed.

The work cycle control of the air pistons can take place via solenoid valves.

In the embodiment of FIG. 5, the working plane is the two Transport rails 1 and 2 rotated by 900 compared to the example according to FIG.

The movement and the sequence of movements of these two horizontal transport rails 1 and 2 are in the same way as with the two upright transport rails causes. The storage of the small parts 16 takes place on the horizontally arranged transport rails 1 and 2 between the two storage rails 4.

Those described in the two exemplary embodiments according to FIGS. 1 and 5 Transport rails 1 and 2 each have a length of 1000 mm and a width of 30 mm with a wall thickness of 1 mm. The size and spacing of the gaps 31 and 32 depend on the small parts 16 to be transported.

As an extension of what has been described with these exemplary embodiments According to the invention, it is also possible to use the movement pattern of two transport rails to be transferred analogously to several transport rails.

It is not necessary for the transport rails to be specially shaped Have recesses (e.g. stoops) to allow small parts to be transported to be able to; they just have to be designed so that they can take small parts with them from time to time can, for example, about training with the small parts that is appropriate for the purpose coming into contact surface of the transport rails can be reached.

Patent claims:

Claims (5)

Claims: device for step-by-step movement and positioning of objects, in which the movement of the objects through a transport rail causes a square movement (forwards, downwards, backwards, upwards3 executes and takes the objects to be moved with it during their forward movement, characterized by a second, same transport rail 2, which is in push-pull to the first transport rail 1 is driven so that it during the backward movement the first transport rail takes the objects to be moved with it. 2. Apparatus according to claim 1, characterized in that both Transport rails 1 and 2 are arranged upright. 3. Apparatus according to claim 1, characterized in that both Gransportschienen 1 and 2 are arranged horizontally. 4. Apparatus according to claim 1, characterized by a back and forth The forward drive element 6, which has a drive head via a toothed segment with lever 7 8 issued a rotary movement around 1800 and thus via two cranked connecting straps 9, which can be rotated both on the drive head 8 and on the two transport rails 1 and 2 are attached, this moves back and forth. 5. Apparatus according to claim 1, characterized by a back and forth forward drive element 10, which via a lever system 11 has a double lever or pivoted back, on the two legs 13 of which there are rotatable driving keys 14 are arranged, which in guide slots 15 of the two transport rails 1 and 2 intervene and thereby move these two rails up and >> aXBwErts.