TOOL UNIT

The invention concerns a tool unit comprehensively a tool carrier, several at the tool carrier arranged tool holder photographs, into the tool holder photographs with a housing section applicable tool holders, of the tool holders tools held and a tool drive planned at the tool carrier.

Such tool tools are well-known from the state of the art, whereby with these the problem exists to propel the tools in the individual tool holders on the one hand flexibly and on the other hand efficiently.

The invention is the basis the task to improve a tool unit of the genericin accordance with-eaten kind in such a manner that a drive of tools held by the tool holders is as efficient and flexibly possible as possible.

This task is solved with a tool unit of the initially described kind according to invention by the fact that with the tool drive a drive body is propelable, which is assigned to a selected tool holder admission that the drive body exhibits a first drive component, which is coaxially to a second drive component one the tool holder inserted into this selected tool holder admission arranged and is positively connectable with the second drive component, and that the drive body carries external teeth, which is bringable with a pinion of a tool holder in interference, which is applicable into a tool holder admission lying beside the selected tool holder admission.

The advantage of the solution according to invention is to be seen thus therein that also the same drive body the possibility exists, once the second drive component of the tool holder in the selected tool holder admission to propel directly and on the other hand also still the possibility exists to propel over external teeth of the drive body also a tool of a tool holder in a tool holder admission which is beside the selected tool holder admission.

Furthermore a further advantage of the solution according to invention is to be seen therein that in simple way different numbers of revolutions are realizable, i.e. once a translation-free drive of the tool in the tool holder, which is applicable into the selected Werkzeugaufnahme, and on the other hand exists the possibility, a tool in a tool holder, which is inserted into a tool holder admission used beside the selected tool holder admission to also propel opposite the tool in the selected tool holder admission of different number of revolutions.

Regarding the arrangement of the tool holder photographs so far no closer data were given.

Thus a favourable solution plans that the tool holder photographs in a carrier body are arranged and that the drive body on one is arranged a front side facing side of the carrier body.

Preferably thereby the tool holder photographs are arranged along a line, in particular along this line in identical distances from each other.

In principle the possibility would exist of arranging the tool holder photographs in such a way that axle centers the same include an angle with one another.

A particularly favorable solution plans however that the tool holder photographs are so arranged that axle centers the same run parallel to each other.

Furthermore also the front side of the carrier body could run for example curved or staged.

A particularly favourable solution plans however that the front side of the carrier body represents an even surface.

Regarding the training of the first drive component and the second drive component so far no closer data were given.

For example the first drive component and the second drive component could be formed by a groove and a feather/spring intervening in the groove.

A particularly appropriate solution plans however that the first drive component is designed as internal teeth, which comb with a drive pinion as second drive component.

In this case thus also the second drive component is a drive pinion, in the same way like the drive pinion of the tool holder, which is applicable into a Werkzeugaufnahme apart from the selected Werkzeugaufnahme.

Particularly favorable conditions result, even if the first drive component and external teeth lie in perpendicularly to an axis of rotation of the drive body a running level, so that both external teeth and the first drive component are accessible essentially in the same distance from the front side for a positive drive connection.

In principle it would be conceivable that the drive body over additional waves or transmission transmission of the tool drive is propelable.

Particularly favorably is it however, if the drive body is directly propelable by the tool drive and is stored for example also at least on a side by the tool drive relative to the carrier body.

The tool drive can be trained in most different way.

For example the tool drive can be provided with any engine, in particular an electric motor.

A preferential execution plans that the tool drive covers a servo actuator, whereby a such servo actuator is suitable in particular for the supply of high torques.

It is still more favourable, if the tool drive covers a servo actuator in synchronous technology.

Regarding the training of the tool holders so far no closer data were given.

Thus a favourable solution plans that each tool holder exhibits at least one tool holder spindle, so that with this tool holder spindle in simple way propelled tools can be used, which are applicable into the tool holding fixture.

In principle can be used into well-known way individual work things owners into the tool holder photographs.

In order to have as large a number available of propelled tools as possible, it is preferably intended that into the tool holder photographs multi-impression mould owners are applicable, which exhibit several propelled tools.

A such multi-impression mould owner can be for example so trained that it covers a housing section for adjustment in a tool holder admission.

A particularly favorable solution plans however that the multi-impression mould owner exhibits at least two housing sections, from which each in tool holder photographs lying side by side from two is applicable.

This solution has on the one hand the advantage the fact that a such tool holder is very stably in the two tool holder photographs held and on the other hand the advantage that a such tool holder is spatially favorably executable since into the two housing sections applicable into the tool holder photographs for the storage of tool holder spindles can be in each case also used.

With a such multi-impression mould owner a tool could be a not propelled tool.

A particularly favorable solution plans however that the multi-impression mould owner covers at least two number of revolutions-coupled tool holder spindles.

Such number of revolutions-coupled tool holder spindles could be number of revolutions-coupled with a defined speed ratio for example.

Particularly appropriately is it however, if the tool holder spindles are in such a manner number of revolutions-coupled that these are propelable with the same number of revolutions.

Regarding the drive of the individual tool holders the most different solutions are conceivable. For example it would be conceivable to use with different tool holders different drive pinions.

Particularly favorably is it however, if all tool holder propelable by the tool drive carry an identical drive pinion. This solution has the large advantage that thereby the tool holders can be replaced at will and a drive of the tool holder spindle is possible over the drive pinion always.

In particular it is intended with the fact that the drive pinion is bringable both with internal teeth and with external teeth of the drive body in turning interference, so that the possibility exists to propel with external teeth of the drive body the tool holders which are on several sides of the selected tool holder admission.

In particular it is intended that with the drive body both the drive pinion of a tool holder inserted into the selected tool holder admission and the drive pinion of a tool holder inserted into the Werkzeugaufnahme lying beside the selected tool holder admission are propelable.

Thus the possibility exists of propelling also the same drive body two or three or still more drive pinions so that in simple way several propelled tools are available.

Further characteristics and advantages of the invention are the subject of the following description as well as the graphic representation of some remark examples.

In the design show:

Fig. 1

a plan view on a remark example of a tool unit according to invention;

Fig. 2

a cut along line 2-2 in Fig. 1;

Fig. 3

a side view of a single-impression mould owner;

Fig. 4

a profile by the single-impression mould owner along line 4-4 in Fig. 3;

Fig. 5

a side view similarly Fig. 3 of a multi-impression mould owner;

Fig. 6

a profile similarly Fig. 4 by the multi-impression mould owner;

Fig. 7

a cut along line 7-7 in Fig. 5 and

Fig. 8

a plan view toward the arrow A in Fig. 5.

A remark example of one as a whole with 10 designated tool tools, represented in Fig. 1 and 2 covers a tool carrier 12, which is provided with a set of tool holder photographs 14a, 14b, 14c and 14d, which are along a line 16 with identical distances from each other arranged, whereby the line 16 does not have to be a straight line, but when curved line can be trained.

Into these tool holder photographs 14a to 14d tool holders 22, 24, 26 applicable with their housing sections 32a, 32b, 34 and 36 are, whereby the housing sections 32, 34 and 36 are designed as shank bodies preferably, while further housing sections 42, 44, 46 mount on a front side 50 of the tool carrier 12 and rise over these.

In the tool holders 22, 24, 26 is arranged propelled tools 52a, 52b, 54 and 56, which are stored around rotation axles 62a, 62b, 64 and 66 rotary propelable in the housing sections 32, 42, 34, 44 and 36, 46 for their part in each case.

The tool holder 22 is thereby a so-called double tool holder while the tool holders are 24 and 26 so-called individual work things owners.

As in Fig. 3 and 4 by the example of the individual work things owner 24 represented, is into applicable housing section 34 as shank with a lateral surface 72, rotationally symmetric rotationally symmetric to the respective rotation axle 64, to the rotation axle 64 trained the tool holder photographs 14 and as such by graphically not represented chucking devices in the appropriate tool holder admission 14 fixably.

The housing section 44 following to this housing section 34 forms a flange surface 74, which on the front side 50 is put onable, in order to reach a defined adjustment of the tool holder 24 relative to the front side 50 following the cylindrical lateral surface 72.

In the housing sections one is as a whole arranged 34 and 44, which are firmly connected with one another, with 76 designated tool holder spindle, which is swivelling stored on the one hand with a turning camp 78 in the housing section 34 and on the other hand with a turning camp 80 in the housing section 44.

The tool holder spindle 76 carries turned away and over the housing section 34 supernatant end of 82 a drive pinion 84 for the housing section 44 at their, over which the tool holder spindle is rotary propelable 76 around the rotation axle 64.

Furthermore the tool holder spindle 76 at their carries the end of 82 a Werkzeugaufnahme 88 for opposite tool-lateral end of 86, into which the respective propelled tool is applicable 54.

For the drive of the tool holder 24 is, as in Fig. 2 represented, as a whole with 100 characteristic drive bodies intended, which is rotary propelable on a drive shaft 102 of a tool drive 104 arranged and by this.

The drive body 100 points thereby, as in Fig. 1 and 2 represented, when first drive component internal teeth 106 as well as external teeth 108 up, whereby internal teeth 106 and external teeth 108 in one level 110, in particular symmetrically to this, are arranged, which runs perpendicularly to an axis of rotation 112 of the drive body 100.

Furthermore the drive body 100 is stored still by a close of the level 110 lying support bearing 114 swivelling in a bearing sleeve 116 of the tool carrier 12.

Likewise firmly at the tool carrier the 12 tool drive 104 enclosure preferably installed a servo actuator 120 trained in synchronous technology, which is able to supply a high torque.

The drive body 100 is assigned and thus with its axis of rotation aligned 112 coaxially to the rotation axle 64 of the tool holder 24 inserted into the tool holder admission 14c with its axis of rotation to 112 of the tool holder admission 14c.

Furthermore internal teeth 106 of the drive body 100 are in such a way arranged that the tool holder 24 with its drive pinion 84 in internal teeth 106 inserted into the tool holder admission 14c intervenes and is coupled by form closure drehfest with the drive body 100.

The drive of the tool holder spindle 76 of the tool holder 24 effected thus by means of the drive body 100 with the same number of revolutions as the drive body 100 via the tool drive of the 104 is propelled.

When planning an appropriate tool drive 104 exists thus the possibility, the tool holder spindle 76 of the tool holder 24 transverse force-free with according to large torque, i.e. exactly the torque at the drive body 100 the available to propel however in addition, with exactly the same number of revolutions, with whatever the drive body turns 100.

Furthermore the tool holder 26 trained like the tool holder 24 is identically, so that regarding the description of the parts of the same to the full extent on the remarks to the tool holder 24 purchase can be taken.

Also the drive pinion 84 of the tool holder 26 in the tool holder admission 14d arranged beside the tool holder admission 14c is by the drive body 100 propelable, however not with internal teeth 106, but with its external teeth 108, which are so dimensioned that it combs with the drive pinion 84 of the tool holder 26 used in the tool holder admission 14d.

Since external teeth 108 exhibit inevitably a larger diameter than external teeth 106 arise in the case of identical drive pinions 84 the tool holder 24 and 26 inevitably a translation to higher numbers of revolutions with the drive of the drive pinion 84 of the tool holder 26, so that thereby also the tool holder spindle turns 76 of the tool holder 26 with higher number of revolutions than the tool holder spindle 76 of the tool holder 24.

Thus the tool 56 of the tool holder 26 with a higher number of revolutions around the rotation axle 66 can be propelled rotary than the tool 54 of the tool holder 24.

Therefore 56 working on are possible, which require on the one hand a higher number of revolutions, on the other hand however with same achievement with a smaller maximum torque with this tools get along than the working on, which are feasible with the tool 54 of the tool holder 24.

As into the Fig. 7 to 8 represented, the tool holder 24 is trained as so-called double tool holders, i.e. that this tool holder exhibits 24 two 14 housing sections 32a and 32b from each other arranged in the same distance as the tool holder photographs, of which everyone into one of the tool holder photographs 14, is applicable, whereby for example the housing section is applicable 32a into the tool holder admission 14a and the housing section 32b into the tool holder admission 14b.

Furthermore everyone of the housing sections 32a, 32b is connected with a housing section 42a and/or 42b, whereby the housing sections 42a and 42b are firmly connected for its part for example by a common housing basis 132 with one another, so that by it also the housing sections 32a, 32b are firmly with each other connected and defined to each other, preferably parallel to each other, aligned.

As in Fig. represented , 42a a tool holder spindle 76a is arranged 6 and in the housing sections 32b and 42b, which are likewise firmly connected with one another, a tool holder spindle 76b in the interconnected housing sections 32a and, whereby the tool holder spindles 76a, 76b are in the same way as stored with the individual work things owners 24 by turning camps 78a and 80a and/or 78b and 80b in the respective housing sections 32 and/or 42 around the rotation axles 62a and/or 62b rotary and parallel to each other aligned.

Deviating from the tool holder spindle 76 of the individual work things owner 24 the tool holder spindles 76a and 76b within the range of the housing sections 42a and/or 42b carry a coupling pinion 134a and 134b with one between the coupling pinions 134a and 134b for arranged transmission pinions 136 comb in each case in each case, so that the tool holder spindles 76a and 76b number of revolutions-coupled, in the relationship 1:1, in which double tool holders 24 are arranged.

For this reason also only one of the tool holder spindles 76, for example the tool holder spindle 76b, is provided with a drive pinion 84 ', while the tool holder spindle 76a does not carry a drive pinion.

Drive pinions 84 ' is thereby identical trained as drive pinions tool holders 24 and 26, so that during arrangement of the double tool holder 24 in such a manner that the drive pinion 84 ' in the tool holder admission 14b is arranged, is combing the drive pinion 84 ' with external teeth 108 of the drive body 100 in interference and is propelable with the same reduction, like the drive pinion 84 of the tool holder 26, so that the tool holder spindles 76a, 76b of the tool holders 24 and 26 with the same translation are propelled.

Due to the coupling of the tool holder spindles 76b and 76a thus also both tool holder spindles 76a and 76b of the double tool holder 24 with the same number of revolutions are propelled.

With the double tool holder according to invention 24 thus the possibility, already by drive of one of its tool holder spindles 76a, exists 76b the other tool holder spindle 76b of propelling 76a with exactly the same number of revolutions.

With the double tool holder 24 the housing sections 32a and 32b as well as 42a and 42b are preferably trained and also identically trained the tool holder spindles 76a and 76b identically, so that a multiplicity of equation hurrying is possible, in particular in the case of the tool holder spindle 76a and b and the turning camps 78 and 80.

Alternatively to in Fig. the possibility exists in addition, 2 represented arrangement of using the double tool holder in such a way 24 into the tool holder admission 14c that the housing section 32b of the double tool holder 24 in the tool holder admission 14c sits and the drive pinion 84 ' by internal teeth 106 is propelled.

There the other tool holder spindle, in which case carries the tool holder spindle 76a, for their part no drive pinion, is not made rotary drive of the same by external teeth 108, but only one drive due to the coupling of the tool holder spindles 76b and 76a planned in the double tool holder 24.

In this case then both tool holder spindles 76b and 76a with the drive body 100 appropriate number of revolutions are propelled, however with an accordingly larger torque.

Alternatively to planning the double tool holder 24 in the tool holder photographs 14a and 14b it is conceivable in addition, to begin into the tool holder admission 14b one the individual work things owner 24 or 26 so that its tool holder spindle 76 is propelled by external teeth 108 of the drive body 100 with the appropriate translation. In this case then however no possibility exists of planning in the tool holder admission 14a a propelled tool holder but there is only the possibility of inserting a not propelled tool holder into this which is not propelable due to the allocation of the drive body 100 for the tool holder admission 14c.

Alternatively to it is conceivable in addition, to assign to several of the tool holder photographs 14 drive body 100 which in each case is able to propel both in the directly assigned tool holder admission 14 with internal teeth 106 and in the directly neighbouring tool holder photographs 14 with external teeth 108 the respective tool holder spindle 76 either with low number of revolutions and high torque or with high number of revolutions and low torque.