EP3442733A1

EP3442733A1 - Method for setting up a rotary processing machine and rotary processing machine

Info

Publication number: EP3442733A1
Application number: EP17702000.5A
Authority: EP
Inventors: Thorsten Rettich
Original assignee: JG Weisser Soehne GmbH and Co KG
Current assignee: JG Weisser Soehne GmbH and Co KG
Priority date: 2016-04-16
Filing date: 2017-01-27
Publication date: 2019-02-20
Also published as: US20190126403A1; KR20180129777A; DE102016004657A1; MX2018010412A; JP2019513569A; WO2017178090A1; CN108778580A; BR112018016873A2; DE102016004657B4

Abstract

The invention relates to a method for setting up a rotary processing machine (1), in which at least one base jaw (4) of a workpiece receptacle is set up to receive a workpiece type that is to be processed and in which the base jaw (4) is coated on a workpiece contact surface (15).

Description

Method for setting up a turning machine and

Turning machine

The invention describes a method for establishing a:

Turning machine, the m Grundgebacken a

Workpiece picking to a recording of a machined

Workpiece type is set up as well as a

Turning machine with workpiece holder, which has at least one base jaws, in particular for

Implementation of the method according to the invention

Such turning machines for processing .von

Workpieces are known. Here is the workpiece. in a:

Factory: tucking receiver firmly clamped, which is rotatable relative to a substantially fixed tool. There are different clamping means for clamping the workpiece in de ^: workpiece holder, which can be selected depending on the shape and condition of the workpiece

A commonly used form of such workpiece holders are round; Lathe chuck with holders for clamping jaws, which can be fastened in various radial positions;

Factory piece: to clamp in the same direction. these jaws

Locking elements, which with corresponding locking elements of the

Spin chucks interact around the radial position de

Define clamping jaws within the chuck.

To preserve the strength of the locking elements, the

Screening not arbitrarily finely formed Thus, it is clear that not every arbitrary workpiece fits to one of the fixed latching positions and are firmly clamped can. In this case, there remains a gap between the clamping jaws and the workpiece. To fill such gaps, there are documents, for example so-called parallel documents _/ in different strengths, between. : Workpiece: and

Clamping jaws can be inserted.

But also: with these .underlays is: a precise adjustment and. Einspännung. of the workpiece, sometimes., difficult and time consuming,

To get an accurate _/ ; To ensure clamping, there are lathe chucks in which the clamping jaws can be adjusted radially by means of fine threads so that the insertion of documents can be dispensed with. But this type of device of the workpiece is time consuming

Finally, the clamping jaws can be adapted to the tool to be clamped. Either by machining of universal base jaws or by targeted production of suitable clamping jaws. For example, by injection molding, sintering or other shaping. However, this requires an additional processing step, which is also expensive and expensive

All these methods of the device have in common that they inevitably involve manual method steps, and therefore, are not or can only be automated; The

Device: the turning machine is therefore expensive, expensive and error-prone.

The object of the invention is therefore to provide a method for setting up a turning machine, which can be automated and therefore much more efficient, cheaper and faster to carry out This object is achieved by the method according to the invention with the features mentioned in the main claim.

According to the invention. is: a green baking on at least one

Workpiece contact surface coated The dimensions of the

Gruhdbäcken can with the help of Beschichtungsuhg. more precisely to that

Workpiece, to be adjusted. A manual adjustment of the base jaws or a deposit of the workpiece with documents is therefore no longer necessary. A manual adjustment of the workpiece holder to the workpiece is therefore no longer necessary

This: Illumination can be xn exner separate

Layering device take place. However, it is particularly expedient if the coating takes place in situ, that is to say air built-in base jaws. The Grundbacker. to be in and during the Beschichtsüng already in the

Workpiece picking up By the Beschässüng get .. .. the

Grundbackeri ne matching the workpiece Thus, after the Beschiehtüng no additional process step more necessary. Setup of the workpiece holder and the

Turning machine can be easily automated and thus is much easier and cheaper to carry out.

It is particularly advantageous if the Beschiehtüng done in the lathe. That means at the already in the

Lathe built-in workpiece holder

The Beschiehtüng the base jaws can be done in various ways, for example by a known coating method. In an expedient embodiment of the invention, the coating takes place ^■ ; ^■ : by rubbing a consumable on a surface to be coated, in particular on a workpiece contact surface. It can do that Consumables for example be ^' metal, plastic or a composite material Particularly preferably, the consumable steel, a non-ferrous metal and / or plastic.

The rubbing involves a: relative movement between consumables and: base jaws while the

Consumables with a defined pressure on. .the base jaws pressed .wird.

The relative movement can be done, for example, by turning, swinging or rotational swinging. Where either the consumables and / or the base jaws is moved, for example by an electric motor

In an alternative embodiment of the invention, this is done

Coating for example by. Laser sintering A siriterable powder is applied to the base jaws, which is then sintered by heat input from the laser. The powder may for example consist of metal plastic or another material. It can also ^:

Powder blends of different materials can be used to obtain a composite material By repeated application and sintering, large film thicknesses can be achieved, which have the same mechanical material properties throughout

The coating can alternatively or alternately also be effected by means of an arc. Known methods are for this example, the arc vapor deposition or ^: ichbogenspritzen

Basically it is possible for me several dxeser

Coating process to combine, for example, different layers on different locations of the Apply base jaws and / or apply different layers on top of each other. The layers can also consist of different materials:

The coating is used in particular for adapting the base jaws to a workpiece. In addition, the coating can fulfill even more functions. The coating can for example for. . Reduction, corrosion and / or wear.

Coating is _applied: in particular advantageous if a haftungsreibungsvergrößernde by coating is. This not only adapts the geometry of the base jaws to the workpiece, but also increases the adhesion of the work piece to the base jaw. The torque on the

Workpiece is exercised increases, so that later during the actual turning a tool with greater force can act on the workpiece, whereby the removal rate and thus the Bearbeitungsüngsgeschwindigkeit increases and the production time is reduced.

The layer thickness or coating thickness of the coating of the

Base jaws after coating process, not exactly

Control or adjustable Depending on the required tolerance, it may or may not be necessary. It makes sense to rework the base jaws after the coating in order to obtain an exact surface.

This post-processing can be any chipping or other

Include processing steps. The ; Coating the

Base jaws can be milled, ground or turned, for example

The post-processing can take place in a separate machine in a separate process. _, In ■ an advantageous Training .derder invention, the base jaws, after the

Coating with one in a working position of

Arranged turning machine ^; Tool on the coated workpiece contact surface are machined. This achieves a: very precise adaptation to a contour of the workpiece type. The advantage is that the machining with a conventional turning tool, which also for. Machining a workpiece can be used, m the turning machine ^: done. The

Turning machine works itself, so that virtually no manual operations are required. This means that the coating and finishing of the coating ^in: situ, ie in the

Turning machine done. The device of the turning machine can essentially be done fully automatically. The method according to the invention is _: substantially faster and more cost-effective and therefore more efficient.

The object of the invention is also by a

Drehbearbeituhgsmaschine of the aforementioned type, which has a: coating device: comprising, which: the

Base jaws on a workpiece contact surface can be layered

Thus, ^"can perform the novel process and realize the associated benefits

It is particularly advantageous if the

Coating device is designed such that the

Basic jaws in its position of use is beschichtbar. The base jaws can then be applied directly to the coating

Bending position remain and be used. As a result, a manual device can be omitted.

Conveniently, the coating device is movable m of the turning machine _. arranged _.. so they a coating position; in which the base jaws is coatable in its use position, and .einer rest position is movable.

The coating device may, for example, be pivotally mounted or displaceable,

The coating device can. various:

Embodiments for different coating processes in Isen.

In an advantageous embodiment of the invention, the coating apparatus comprises: an application unit, with which a consumable material can be rubbed against the workpiece contact surface. By way of example, a base jaw can be coated by rubbing as described above.

In an alternative embodiment of the invention, the device is for laser sintering or

Coating set up by means of an arc

Preferably, this coating device has a

Apparatus for applying a sinterable powder and a laser source for generating a laser beam for heating the applied powder.

For further post-processing of a coated base jaw is. it is useful if in a tool holder a

Tool is clamped, with which the

Workpiece contact surface of the base jaw is rotatable.

This can be a post-processing of the coated

Base jaws in the turning machine itself done

The Grundbackeh can therefore be processed completely in total and the turning machine and adapted to a workpiece. The establishment of the turning machine can therefore be done automatically and is therefore inexpensive and efficient ^' .

The method according to the invention and an advantageous embodiment of a turning machine according to the invention are explained in more detail below with reference to the accompanying drawings.

It shows.:

1 is a schematic representation of a turning machine according to the invention,

2 shows a detailed view of the coating device during the coating process,

Fig. 3 shows a detail of the coating apparatus after the coating process and

Fig. 4 is a detail view of the tool holder. during the

Processing of the ground bakery

The FIG. 1 shows a turning machine according to the invention designated as a whole, hereinafter referred to as a lathe. The lathe 1 has a workpiece holder 2, which in the example is referred to as so-called

3-jaw lathe chuck 3 is formed. On the lathe chuck 3 are three base jaws 4 arranged radially aligned with each other at 120 ° angular distance, with only two of the base jaws 4 are shown in the picture for a better overview

The base jaws 4 essentially have a radial

Direction extensive cuboid shape and possess. an axial.

Stage 5. The base jaws 4 are in the lathe chuck 3 in radial

Orientable to clamp a workpiece. Such base jaws are standard parts for lathes 1 and exist in different / forms and. Designs .. So there are also base jaws 4 with no, two or more axial

Steps 5. Likewise, there are lathe chucks 2 with more than three base jaws 4.

Furthermore, the lathe knows one

Coating device 6 for the m situ coating of the

Base jaws 4 and / or the workpiece holder 2 and / or processing device 7 for cutting ^:. processing

Base jaw 4 and / or the workpiece holder 2 on

Both the coating device and the

The processing device is movably arranged in the lathe so that it can be positioned in a working part for coating or processing the lathe chuck 3. The nature and wisdom of this movement plays for the

Invention no essential role and is therefore here, not shown in detail. The lathe. 1 can, for example, a

Turntable or revolver: r aufwei sen, on which the

Coating device 6 and: the processing device 7 are arranged so that they. by a . Rotation of the

Turntable can be brought into the appropriate working position.

A coating device 5 is shown in more detail in FIG

She. is in the example for coating by. Grating., Consumables .. formed on a ^' ..to be coated .Objekt, wherein the / friction is generated by rotation of one of these friction partners.

The coating device 6 has an application unit 8, which essentially contains a rod-shaped holder 9, on which a circular disc made of a consumable material 10 can be fastened in a rotationally fixed manner Since the lathe chuck 3 is already designed for the rotation of a workpiece, the

Lathe chuck 3 driven. The consumable 10 is therefore fixed.

Alternatively, but also the. Be coating device 6 is formed so seih that, for example, the consumable material 10 or. the holder 9 is rotationally driven. In this case, the lathe chuck 3 can be fixed.

The coating device 6 or the lathe 1 also have means for disposing of the consumable material in several

Spatial axes linear with respect to the Oberf1 to be coated

11 to move,; so that the consumable material 10 can be pressed against the surface 11 to be coated

Instead of . ■ · ^' or additionally .. to ^■■ the. shown here

Friction coating device, a laser sintering device may be present. Such a laser coating device may comprise the application unit, with which a sinterable

Powder is on a surface to be coated on ringbar

Furthermore, a laser may be present through

Heat input into the sinterable powder causes a sintering process. ne processing device m of FIG. shown in more detail. It has a tool holder 12 in which a

Tool 13 can be used for turning The

Machining device 7 or the lathe 1 also have means to the tool 13 in several spatial axes linear ^■ with respect to the surface to be machined 11 ^; to move .

The establishment of a. Lathe 1. can now with the following steps, in principle fully automatic, respectively .

At first it will; a torsion chuck 3, such as a three-jaw chuck, equipped with / standard base jaws 4, as shown in Fig. 1.

Subsequently, the: is arranged in the lathe

Coating device moves working position for coating (Fig

Lathe 1 is driven and thus the lathe chuck 3 is set in rotation. The application unit 8 is moved linearly so that the disc 10 is pressed from consumables against the surfaces to be coated 11 of the base jaws. By the movement of the base jaws 4 with the lathe chuck 3 and the contact pressure of the consumable material 10 to the surface 11th A friction between the consumable material and the surface 11 is created. This friction causes a removal of the consumable material 10 from the disc and a deposition of the consumable material 10 as a coating 14 on the surface 11

In this way, different layers 14 can be produced, if necessary also with several layers of different materials

By ^: the ^: coating 14 can ^: for example. the

Dimensions or the geometry of the base jaws 4 to a workpiece to be processed or a workpiece type, if many

Workpieces of the same type can be edited, adjusted. For example, a coating 14 on the workpiece contact surfaces 15 of the base jaws 4, which is advantageous, is advantageous. rest against the workpiece.

In addition to the geometry adjustment, this coating .14, for example, a hard layer for reducing the Be an adhesion-improving wear or ^'layer for safer holding a workpiece.

After the coating of the base jaws 4, the loading device 6 becomes: again out of: the working position; out: moved (Fig. 3).

These coated base jaws 4 have now. the appropriate dimensions and features and. can be used directly for receiving: a workpiece. An advanced one

Device or; Adjustment of the lathe is not necessary

The lathe 1 according to the invention can set itself up according to this method according to the invention, which _; very easy and efficient to carry out.

The geometry of the base jaws 4 can alternatively also be done by machining i machining inside the lathe (FIG. 4). Again, the lathe 1 is initially equipped with a lathe chuck 3 with standard base jaws 4

In tool holder 12 of a processing device 7, a tool 13 is used and the tool 13 is moved to a working position relative to the workpiece holder 2. The

For example, a tool can be a real turning tool.

The spindle of the lathe 1 is driven whereby the

Lathe chuck is rotated. With the help of the tool 13 of the processing device 7 is now ·. ^{■ Removed} material from the base jaws 4 in a chipping way. In this way, a precise adaptation of the geometry of the base jaws 4 to a workpiece is possible. After machining, the processing device can be moved to the working position: and the lathe chuck ^: 3 can be used immediately to pick up a workpiece. Again, the adaptation and processing of the base jaws 4

^• rn situ, so no. additional or: additional device of the lathe 1 is necessary:

Of course, these two methods can also be combined with each other.

In particular advantageous: is it when first the

Base jaws coated by the coating device and then the coated surfaces, in particular the workpiece contact surfaces 15, by means of editing orrichtung 7 machined by machining.

It is . However, it is also conceivable that the base jaws 4 are first machined and then coated.

The method can also be used, for example, to achieve a fully automatic self-assembly of the lathe 1 for slightly: different workpieces. For example, by coating and possibly subsequent reworking of the base jaws 4 the

Workpiece holder 2 adapted to a workpiece

After the turning of the workpiece can by means of

Machining device 7 first, the coating 12 are removed from the base jaws 4, then ^: for another, another workpiece a ^: new coating 12, with any subsequent processing, apply. This process can then be repeated almost arbitrarily.

The invention describes a method for setting up a

Turning machine in which at least one base jaws a workpiece holder to a recording of a workpiece type to be machined. : is set up and the

Base jaws is coated on a workpiece contact surface

/ Reference list

LIST OF REFERENCE NUMBERS

1 lathe

2 workpiece holder

'^' [.31 lathe chuck

4 base jaws

^■■ : -5: Axial step on ^{base jaws}

6 Coating device

7 processing ^device

8 application unit

9 bracket

10 disc of consumables

11 Surface to be coated

12 tool holder; _: i

13 tool

14 ^" coating

15 .. workpiece clock laugh

/Claims

Claims

claims

Method for setting up a turning machine

(1), wherein a base jaw (4) a Werkstückaufnähme

(2) to a recording of a. to be processed:

Workpiece type is set up, characterized in that the base jaws (4) at one; Plates contact surface (1.1) coated., Will.

10 2 Method according to claim 1, characterized

the coating is performed on the built-in base jaw (4)

Method according to claim or 2 characterized:

15, characterized in that the _{: base} jaws (4) after: the

Coating with a tool (13) arranged in a working position of the turning machine (1) on the coated workpiece contact surface (15) is machined, in particular by turning, grinding

20 or milling.

Method according to one of claims 1 to 3, characterized in that the coating by friction of a .Verbrauchsmaterials (10) on the workpiece contact surface

25. (15) takes place.

A method according to claim 4, characterized in that as a consumable steel: metal and / or plastic is used

3.0

6. Method according to one of the claims:. ! to 5, characterized in that the coating: n by laser sintering and / or by means of ': arc: takes place

35 7. Method, according _to one of claims _.. 1 to 6, characterized characterized in that an adhesion friction-increasing coating is applied by the coating.

Turning machine (1) with Werkstückeaufnähme (2), comprising ^: at least one base jaws (4), characterized in that it comprises a coating device (6), with which the base jaws (4) on a workpiece contact surface (15), preferably in its use position , is coatable.

Turning machine (1) according to claim 8, characterized in that in a tool holder (12) a tool (13) can be clamped, with which the workpiece contact surface (15) of the base jaw (4) is rotatable.

Turning machine according to claim 8 or 9, characterized in that the coating device (6) has an application unit (8) ^: with which: a consumable material (10) on the workpiece contact surface (10) can be rubbed.

11. Turning machine according to one of claims 8 to

10, characterized in that the

Coating device (6) is arranged for laser sintering

/Summary