PL71852Y1

PL71852Y1 - Retaining device for detachable connection of a nozzle to a laser processing head

Info

Publication number: PL71852Y1
Application number: PL127750U
Authority: PL
Inventors: Marius Herzog; Florain Opitz
Original assignee: Precitec Gmbh & Co Kg
Priority date: 2018-08-14
Filing date: 2018-10-26
Publication date: 2021-04-06
Also published as: DE202018104662U1; DE202018105623U1; PL127750U1; CN210147274U

Description

PL 71 852 Y1 W porównywalny sposób, na stronie zewnetrznej czesci izolatorowej 14, przejscie pomiedzy ze- wnetrzna powierzchnia obwodowa 18 o mniejszej srednicy a strona kolnierza 16, to znaczy, strona 48, jest zwrócone do wkladki 34, jest uksztaltowane jako przekrój poprzeczny 50, zaokraglony w sposób wklesly. Takze ten zaokraglony przekrój poprzeczny 50 sluzy do zmniejszania wierzcholków napreze- nia. Ten zaokraglony w sposób wklesly, przekrój poprzeczny 50 na stronie zewnetrznej czesci izolato- rowej 14 ma promien wciecia RI miedzy 0,8 mm a 1,2 mm. Pokazane tutaj urzadzenie ustalajace 10 jest czescia skladowa glowicy do obróbki laserowej, która zawiera ponadto nie pokazana dysze, która jest wkrecona rozlacznie we wkladce 34 urzadzenia ustalajacego 10. Fig. 2 pokazuje czesc izolatorowa 14 bez wkladki 34, w widoku w przekroju, odpowiadajacym fig. 1, wlacznie z danymi wymiarów, które sa wlasciwe dla niniejszej korzystnej postaci wykonania wzoru uzyt- kowego. R2 oznacza promien wciecia miedzy 0,3 mm a 0,5 mm na przejsciu pomiedzy rozszerzonym odcinkiem 22 srodkowego wybrania 20 a strona dolna 30 stopnia 28. R1 oznacza promien wciecia za- okraglonego w sposób wklesly, przekroju poprzecznego 50 na stronie zewnetrznej czesci izolatorowej 14 miedzy 0,8 mm a 1,2 mm. Kolnierz 16 czesci izolatorowej 14 ma grubosc osiowa H1 miedzy 4 mm a 6 mm i srednice D2 miedzy 30 mm a 32 mm. Zewnetrzna powierzchnia obwodowa 18 o mniejszej srednicy ma srednice D1 miedzy 25 a 28 mm. Czesc izolatorowa 14 ma osiowa grubosc H3 miedzy 9 mm a 11 mm. Gwint wewnetrzny 24 rozszerzonego odcinka 22 ma wymiar G2 miedzy M17 x 0,75 a M19 x 0,75 (DIN 13). Odcinek 26 o mniejszej srednicy na górnym koncu czesci izolatorowej 14 ma maksymalna srednice D3 miedzy 10 mm a 12 mm i kat rozwarcia W1 miedzy 10° a 12°. Fig. 3 pokazuje czesc izolatorowa 14 z fig. 1 i 2, w której przyjmowana jest wkladka 34, z wymia- rowaniami. Odpowiednio do tego, kolnierz 40 wkladki 34 ma osiowa grubosc miedzy 0,4 mm a 0,6 mm, tak ze urzadzenie ustalajace 10, wlacznie z czescia izolatorowa 14 i wkladka 34, ma calkowita grubosc H2 miedzy 9,4 mm a 11,6 mm. PL In a comparable manner, on the outside of the insulating part 14, the transition between the outer peripheral surface 18 of the smaller diameter and the side of the flange 16, i.e. side 48, faces the insert 34, is formed as a cross-section 50, rounded concave. Also, this rounded cross-section 50 serves to reduce stress peaks. This concave rounded cross-section 50 on the outside of the insulating part 14 has a cut radius RI of between 0.8 mm and 1.2 mm. The fixing device 10 shown here is part of a laser processing head which further comprises a nozzle, not shown, which is threaded separately in the insert 34 of the fixing device 10. Fig. 2 shows the insulating part 14 without insert 34 in a cross-sectional view corresponding to Fig. 1, including dimensional data appropriate to the present preferred embodiment of the utility pattern. R2 denotes the cut radius between 0.3 mm and 0.5 mm at the transition between the widened section 22 of the middle recess 20 and the bottom side 30 of step 28. R1 denotes the cut radius of a concave circular cut, cross-section 50 on the outer side of the insulator 14 between 0.8mm and 1.2mm. The flange 16 of the insulating part 14 has an axial thickness H1 of between 4 mm and 6 mm and a diameter D2 of between 30 mm and 32 mm. The outer circumferential surface 18 of smaller diameter has diameters D1 of between 25 and 28 mm. The insulating part 14 has an axial thickness H3 of between 9 mm and 11 mm. The female thread 24 of the widened section 22 has a dimension G2 between M17 x 0.75 and M19 x 0.75 (DIN 13). The smaller diameter section 26 at the upper end of insulating part 14 has a maximum diameter D3 of between 10 mm and 12 mm and an opening angle W1 of between 10 ° and 12 °. Fig. 3 shows the insulating part 14 of Figs. 1 and 2, in which the insert 34 is received, with dimensions. Accordingly, the flange 40 of the liner 34 has an axial thickness of between 0.4 mm and 0.6 mm, so that the fixing device 10, including the insulating portion 14 and the liner 34, has an overall thickness H2 of between 9.4 mm and 11.6 mm. mm. PL

Claims

Claims 1. A retaining device for detachably mounting the nozzle on the laser processing head, comprising a cylindrical ceramic insulating portion with a central recess and an insert which is seated in the recess and has a central hole for detachably gripping the nozzle, the recess having a flared a section comprising an internal thread into which the external thread is screwed on the circumferential side of the insert, and a section of smaller diameter which is separated from the widened section by a step extending radially inward, characterized in that the insert (34) is made of steel alloy, and the insulating part (14) has a maximum outer diameter D2 and height H3, being in relation to each other H3 / D2 <0.4, and that in the embedded state of the insert (34) in the recess (20) of the insulating part (14), an intermediate space (44) is formed between the insert (34) and the bottom side (30) of the step (28) facing the insert (34).

2. Device according to claim An intermediate space (44) between the insert (34) and the bottom side (30) of the step (28) of the recess (20) of the insulator part (14) is formed by a concave transition (46) as claimed in claim 1.

3. Device according to claim The device of claim 2, characterized in that the recess transition (46) has a cut radius (R2) of 0.3 mm to 0.5 mm.

4. Device according to claim The insulating part (14) of claim 1, characterized in that the insulating part (14) at the end facing away from the insert (34) ends with a flange (16) with a maximum external diameter (D), which, when creating a concave transition (50), passes into the circumferential surface ( 18) with a smaller diameter.

5. Device according to claim 4. The method of claim 4, characterized in that the collar (16) of the insulating part (14) has an axial thickness (H1) of between 4 mm and 6 mm.

6. Device according to claim 4. The method of claim 4, characterized in that the collar (16) of the insulating part (14) has diameters (D2) between 30 mm and 32 mm.

7. Device according to claim 4. The method of claim 4, characterized in that the smaller diameter outer peripheral surface (18) has diameters (D1) between 25 and 28 mm. PL 71 852 Y1 6

8. Device according to claim 4. A method according to claim 4, characterized in that the transition (50) between the outer circumferential surface (18) of the smaller diameter and facing the insert (34), side (48) of the flange (16), has a radius between (R1) 0.8 mm and 1.2 mm.

9. Device according to claim The device of claim 1, characterized in that the insert (34) is provided with an internal thread (42) which has a dimension (G1) between M14x1 and M16x1 (DIN 13).

10. Device according to claim The method of claim 1, wherein the insert (34) is made of a tough material with good machinability.

11. Device according to claim 10. A method according to claim 10, characterized in that the insert (34) is made of the austenitic alloy steel X8CrNi18-9 (1.4305 according to DIN EN 10088).

12. Device according to claim The device of claim 1, characterized in that the insert (34) has a flange (40) extending radially outward and adjacent to the insulating portion (14).

13. A holding device according to claim 11. The device of claim 11, characterized in that the collar (40) of the insert (34) has an axial thickness of between 0.4 mm and 0.6 mm.

14. Device according to claim The method of claim 1, characterized in that the insulating part (14) has an axial thickness (H3) of between 9 mm and 11 mm.

15. A holding device according to claim The method of claim 1, characterized in that the insulating part (14) has a widened section (22) with an internal thread (24) having a dimension (G2) between M17 x 0.75 and 19 x 0.75 (DIN 13). PL