Mounting press, grinding and/or polishing device, and production line for mounting samples and for machining the mounted samples
The invention relates to a mounting press for automatically mounting metallographic samples in mounting material, comprising: a pressing unit with the press cylinder, a feeding device for feeding mounting material, e.g. plastic granules, a sample loading table with a plurality of loading stations, on each of which the operator can place a sample to be mounted, a control device, a grinder and/or polisher, comprising: a device housing, at least one processing station for processing the underside of the sample, wherein the processing station comprises a grinding plate with a grinding disc for grinding the underside of the sample or a polishing plate for polishing the underside of the sample, a sample feeder with a sample removal position for providing the samples for a grinding and/or polishing process, a sample deposit position for depositing the samples after the grinding and/or polishing process, a grinding-/polishing head with a sample gripper for gripping a sample, wherein the grinding/polishing head with the sample gripper moves to the sample removal position and the sample gripper grips a sample, wherein the grinding-/polishing head with the sample gripper conveys the sample to the at least one processing station and the underside of the sample is ground or polished in the processing station, and wherein the grinding-/polishing head with the sample gripper moves the sample to the sample deposit position after the grinding or polishing process and possibly further processing steps and deposits the sample there, as well as an automated production line for mounting a plurality of samples and for processing the thus mounted samples by grinding and/or polishing samples in a program-controlled overall system comprising an automated mounting press and an automated grinder and polisher.
1. A mounting press for mounting samples in mounting material, comprising:
a pressing unit with a press cylinder,
a feeding device for feeding mounting material,
a sample loading table having a plurality of loading stations, on each of which the operator can place a sample to be mounted,
a control device adapted to control the mounting press with the following steps:
a) the sample loading table moves one of the loading stations with one of the samples to be mounted to a sample receiving position of the pressing unit,
b) the sample to be mounted is introduced from the sample receiving position into the press cylinder by a plunger drive and the mounting material is fed into the press cylinder,
c) the mounting operation is performed to produce a mounted sample,
d) the thus mounted sample is ejected upwards out of the press cylinder by the plunger drive, and
steps a) to d) are repeated to mount a plurality of samples.
2. Mounting press according to claim 1 ,
wherein the sample loading table is in the form of a rotary table and the loading stations are arranged circumferentially in a peripheral annular region of the rotary table.
3. Mounting press according to claim 1 ,
wherein the press cylinder comprises a lower first and an upper second opening and the sample is introduced into the press cylinder through the lower first opening and the mounting material is fed into the press cylinder through the upper second opening,
wherein the pressing unit comprises an upper closure slide, and the control device is adapted to control the upper closure slide such that the upper closure slide closes the upper second opening of the press cylinder after the mounting material has been fed in, in order to subsequently be able to carry out the pressing process.
4. Mounting press according to claim 1 ,
wherein a plunger is located in each of the loading stations as a placement surface for the sample to be mounted and the pressing unit comprises the plunger drive, and wherein the plunger drive couples to the respective plunger in the sample receiving position in order to lift the plunger with the sample to be mounted out of the loading station and push it into the press cylinder.
5. Mounting press according to claim 4 ,
wherein the mounted sample is driven upwards out of the press cylinder by the plunger drive after the pressing process and the plunger and the pressing unit comprises a sample ejector which ejects the mounted sample driven upwards out of the press cylinder from the pressing unit,
wherein the sample ejector pushes the mounted sample transversely to the axis of the press cylinder from the upwardly driven plunger to eject the mounted sample.
6. Mounting press according to claim 4 ,
wherein, after ejection of the mounted sample, the plunger drive moves down again with the plunger and the empty plunger is deposited again in the loading station of the sample loading table before the next loading station with the next plunger and the next sample is moved to the sample receiving position to start the next cycle.
7. Mounting press according to claim 1 ,
wherein the mounting press comprises an insertion opening under the press cylinder, in which the sample loading table moves at least partially and cyclically inserts, at the loading stations, the samples to be mounted into the insertion opening one after the other in order to move one sample to be mounted under the press cylinder.
8. Mounting press according to claim 1 ,
wherein at least a first and a second storage container for storing different first and second mounting material are connected to the feeding device, so that the feeding device can feed mounting material from both the first and the second storage container into the press cylinder, and wherein the feeding of the first and second mounting material is controlled by the control device in order to automatically feed the first and/or second mounting material into the press cylinder, in each case in a predefined quantity.
9. Method for mounting a plurality of samples in mounting material with a mounting press, wherein a sample loading table comprising a plurality of loading stations is loaded with a plurality of samples to be mounted, and the samples are subsequently automatically mounted one after the other in a program-controlled manner by a control device in clock cycles with the following clock steps:
a) the sample loading table moving a loading station with a sample to be mounted to a sample receiving position of a pressing unit having a press cylinder
b) introducing the sample from step a) from the sample receiving position into the press cylinder of the pressing unit by a plunger drive and feeding mounting material from a feeding device into the press cylinder,
c) pressing the mounting material and the sample in the press cylinder to produce a mounted sample,
d) ejecting the mounted sample upwards out of the press cylinder by the plunger drive,
wherein the clock cycle is repeated with the clock steps a) to d) to mount a plurality of samples.
10. Method according to claim 9 ,
wherein the samples are introduced into the press cylinder from below and the mounting material is fed into the press cylinder from above,
wherein the press cylinder is closed at its upper end in a program-controlled manner after the mounting material has been fed in, in order to subsequently carry out the pressing process automatically in a program-controlled manner.
11. Method according to claim 9 ,
wherein the samples to be mounted are each deposited on their own plunger at the loading stations and the samples together with their own plunger are each inserted axially from below into the press cylinder.
12. Method according to claim 11 ,
wherein, after the pressing process, the mounted sample is moved upwardly out of the press cylinder and is pushed from the plunger by a sample ejector transversely to the axis of the press cylinder to eject the mounted sample.
13. Method according to claim 11 ,
wherein, after ejection of the mounted sample, the empty plunger moves down again and is deposited again in the loading station before the next loading station with the next plunger and the next sample is moved to the sample receiving position to start the next cycle.
14. Method according to claim 11 ,
wherein the sample loading table cyclically moves the loading stations with the plungers and the samples to be mounted deposited thereon under the press cylinder, in order to axially introduce one of the plungers with the sample deposited thereon into the press cylinder and/or wherein, after the pressing operation, the plunger is again moved axially downwards out of the press cylinder and deposited again on the loading station before, in the next cycle, the next loading station with the next plunger and the next sample moves under the press cylinder.
15. Method according to claim 9 ,
wherein at least two different mounting materials are automatically and successively fed into the press cylinder in a program-controlled manner.
16. Production line for automated mounting and subsequent surface finishing of samples, comprising:
the automated mounting press according to claim 1 for the program-controlled mounting and ejection of a plurality of samples in sequence,
an automated surface-processing device for processing the underside of the plurality of samples mounted by the mounting press in sequence in a program-controlled manner, and comprising a sample removal position and a sample deposit position,
a first conveying device for conveying the mounted samples ejected from the automated mounting press to the sample removal position of the surface-processing device,
program control devices for controlling the automated mounting press and the automated surface-processing device.
17. Production line according to claim 16 , comprising
a sample collection device for collecting the plurality of samples mounted by the mounting press and processed by the surface-processing device.
18. Production line according to claim 17 , comprising
a second conveying device for conveying the mounted samples processed by the surface-processing device from the sample deposit position to the sample collection device.
19. Method for producing a plurality of mounted samples with a ground and/or polished underside with the production line according to claim 16 with the following steps, or with the interposition of further steps:
a) providing a plurality of samples to be mounted at a mounting press,
b) pressing a first sample to be mounted with mounting material in a press cylinder of the mounting press to produce a mounted sample,
c) ejecting the first mounted sample from the press cylinder,
d) conveying the first mounted sample from the mounting press to a surface-processing device,
e) gripping the individual first mounted sample with a sample gripper of the surface-processing device,
f) moving to a processing station of the surface-processing device, with the sample gripper for processing the underside of the first mounted sample in the processing station,
g) moving to a sample deposit position with the sample gripper and depositing the first mounted sample at the sample deposit position,
h) repeating steps b) through d) and e) through g) a number of times to produce a plurality of mounted samples with a surface processed underside.
20. A mounting press for mounting samples in mounting material comprising:
a pressing unit with a press cylinder and having a sample receiving position;
a feeding device for feeding mounting material;
a sample loading table having a plurality of loading stations, on each of which the operator can place a sample to be mounted;
a control device including a program control adapted to automatically control at least the sample loading table, the pressing unit, and the feeding device, so as to carry out a plurality of mounting press operations automatically and sequentially one after the other without intermediate operator intervention, after the sample loading table has been loaded with a plurality of samples to be embedded, wherein the control device is adapted to automatically control the mounting press in a plurality of sequential cycles, each including the following steps:
a) the sample loading table moves one of the loading stations with one of the samples to be mounted to the sample receiving position of the pressing unit,
b) the sample to be mounted is introduced from the sample receiving position into the press cylinder and the mounting material is fed into the press cylinder,
c) the mounting operation is performed to produce a mounted sample, and
d) the thus mounted sample is ejected upwardly out of the press cylinder, wherein steps a) to d) are repeated by the program control to sequentially mount the plurality of samples.