SE123771C1

SE123771C1 -

Info

Publication number: SE123771C1
Authority: SE
Publication date: 1948-01-01

Description

Uppfinnare: E. B. Westerberg. Inventor: E. B. Westerberg.

Foreliggande uppfinning avser en anordfling, medelst vilken man med mycket stor noggrannhet kan mata den stracka ett foremal forskjutits i forhallande till ett fast fore-m1. The present invention relates to a device flap, by means of which one can feed with great accuracy the straightness of a mold displaced in relation to a solid mold.

Uppfinningsforemalet kfinnetecknas i huvudsak darav, att vid det forskjutbara fore- indict fir pa avstand Iran varandra fasta an- darna av ett, tva. eller flera tradar eller band, som firo fOrda omkring en gemensam, i det fasta fOremalet lagrad trumma samt over var sin pa det fasta foremalet lagrad trissa och f8renade med varandra event. Over en fjader, varvid vid trumman Sr fast en friktionsskiva, pa vilken rullar en med eggformig pen- feni forsedd brytskiva, som Sr fast pa en diametralt i fOrhallande till friktionsskivan lag- rad axel, som upphar en rund graderad skiva, vars gradering är avlasbar t. ex. medelst en nonie. The object of the invention is mainly characterized by the fact that in the case of the displaceable pre-indictment, at a distance from Iran, the fixed spirits of one or two. or several strings or bands, which carry around a common drum, stored in the fixed object and over each of the pulleys stored on the fixed object and joined together. Over a spring, to which a friction disc is attached to the drum, on which a breaking disc provided with edge-shaped pen is rolled, which is attached to a shaft mounted diametrically in relation to the friction disc, which holds a round graduated disc, the graduation of which is readable e.g. by means of a nonie.

Uppfinningen tydliggores med ett utföringsexempel 5. bifogade ritning, dar fig. 1 Sr en schematisk framvy och fig. 2 en schematisk planvy av anordningen med olika delar borttagna i de hada figurerna f5r tydlighetens skull. Fig. 3 och 4 visa detaljer. A ritningen betecknar 1 ett fast foremal, t. ex. en svarvbank, pa vilken Sr forskjutbart anordnat ett foremal, t. ex. en svarvstalsapparat 2. Svarvstalsupporten 2 uppbar en langstrackt bygel 3 med uppstaende ska.nklar 4, 5. Vid den ena skankeln 4 Sr fast ett (eller -Iva) stalband 6, som Sr fort omkring en trumma 7 pa. en axel 8, som Sr lagrad i ett pa svarvbanken 1 fast stativ 9, och dfirifran Over en pa samma stativ lagrad brytskiva 10 till en skruvfjader 11 vid vars ena ande den Sr fast. Vid bygelns 3 andra skankel 5 aro fasta tva (eller ett) stalband 12, 13, som aro forda Over var sin trumma 14, 15 med samma diameter som trufnman 7 och fasta pa samma axel 8 pa var sin sida om trumman 7 samt darefter forda Over en. (eller var sin) pa stativet 9 lagrad brytskiva 16 till skruvfjadern 11 och fast -yid denna. The invention is elucidated with an exemplary embodiment 5. attached drawing, in which Fig. 1 is a schematic front view and Fig. 2 a schematic plan view of the device with various parts removed in the had figures for the sake of clarity. Figs. 3 and 4 show details. In the drawing, 1 denotes a fixed object, e.g. a lathe bank, on which Sr is slidably arranged one object, e.g. a lathe apparatus 2. The lathe support 2 supported an elongated stirrup 3 with upright legs 4, 5. At one shank 4 is attached a (or -Iva) steel band 6, which is fastened around a drum 7 pa. a shaft 8, which is mounted in a frame 9 fixed to the lathe 1, and from there a break plate 10 mounted on the same frame to a coil spring 11 at one end of which it is fixed. At the second shank 5 of the stirrup 3, two (or one) steel straps 12, 13 are fixed, which are above each their drum 14, 15 with the same diameter as the trump 7 and fixed on the same shaft 8 on each side of the drum 7 and then Over one. (or separately) on the stand 9 mounted break plate 16 to the coil spring 11 and fixed -yad this.

Pa axeln 8 Sr fast en friktionsskiva 17, pa vilken rullar en trissa 18, 19, som lampligen Sr bildad av tva med haserna mot varandra staende koner 18, 19 sh att periferien blir eggformig. Trissan 18, 19 Sr fast vid en diame- tralt i forhallande till friktionsskivan 17 i stativet 9 lagrad axel 20, som uppbar en graderad skiva 21, Tars vinkellage Sr avlosbart medelst en nonie 22. Trissan 18, 19 stoder med sin ena konspets mot ett installbart an-slag 25 och halles tryckt mot friktionsskivan 17 medelst tva mot trissans ena koniska mantelyta anliggande fritt roterbara runda tryckskivor 23, 24. Attached to the shaft 8 is a friction disc 17, on which a pulley 18, 19 rolls, which is suitably formed by two cones 18, 19 facing each other with the hooks so that the periphery becomes edge-shaped. The pulley 18, 19 is attached to a shaft 20 mounted diametrically in relation to the friction disc 17 in the frame 9, which carried a graduated disc 21, Tars angular layer Sr releasable by means of a nonie 22. The pulley 18, 19 stands with one of its tips against a installable stop 25 and is kept pressed against the friction disc 17 by means of two freely rotatable round pressure discs 23, 24 abutting one of the pulley conical surface surfaces.

Anordningens verkningssatt Sr fOljande. Nan supporten 2 forskjutes, t. ex. at hoger I forhallande till svarvbanken 1, rotera trummorna 7, 14, 15 motsols och vrider darmed friktionsskivan 17 naotsols. Harvid rullar trissan 18, 19 medsols (snett fran Niger i fig. 2), sit att den graderade skivan 21 vrides motsols (sett frau vanster i fig. 2), och denna vridning kan avlasas vid nonien 22. Med kannedom em diametern pa trummorna 7, 14, 15 och radiens langd frau friktionsskivans 17 medelpunkt och till trissans 18, 19 anliggningspunkt kan man da med stor noggrannhet bestamma den vag, som supporten forflyttats i forhMlande till svarvbanken. Genom forskjutning av anslaget 22 kan man justera utvaxlingsfOrhallandet t. ex. fOr liOn- synstagande till forslutningen av trissans 18, 19 egg. Effect of device Sr The following. When support 2 is shifted, e.g. at hoger In relation to the lathe 1, rotate the drums 7, 14, 15 counterclockwise and thereby turn the friction disc 17 clockwise. Then the pulley 18, 19 rolls clockwise (obliquely from Niger in Fig. 2), so that the graduated disc 21 is turned counterclockwise (seen from the left in Fig. 2), and this rotation can be unloaded at the noni 22. With knowledge of the diameter of the drums 7, 14, 15 and the length of the radius from the center of the friction disc 17 and to the point of abutment of the pulley 18, 19, one can then determine with great accuracy the vague in which the support has been moved in relation to the turning bank. By displacing the stop 22, the gear ratio can be adjusted, e.g. for liOn- taking to the closure of the pulley 18, 19 edges.

Fjadern 11 tjanar till att halla stalbanden val strackta. Eventuellt kan nagon annan anordning vidtagas for bandens strackande. The spring 11 serves to keep the steel straps tight. Optionally, another device can be taken for stretching the straps.

Claims

Patent claim:

1. Device for precision feeding of the straight one displaceable object is displaced in relation to a fixed object, characterized in that in the displaceable object the fixed spirits of two are at a distance from each other. (one or more) trades or bands, which are passed over a common (or several with the same diameter), on the fixed object stored drum, and Over each on the fixed object stored break plate and united with each other Over a spring, the drum Sr 2— - equipped with a unloading device for unloading the rotation of the drum.

2. Device according to claim 1, characterized in that the unloading device consists of a friction disc fixed to the axis of the drum, on which a pulley, which is fixed to a shaft mounted diametrically in relation to the friction disc, rolls, which receives a graduated disc, the rotation of which is readable. , e.g. by means of a nonie. Device according to patent claim 2, characterized in that the distance of the pulley from the center of the friction disc is installable, e.g. by means of a projecting hard abutment abutting against the pulley. Device according to claim 2 or 3, characterized in that the pulley has the shape of two cones joined to the bases. 5. Device according to patent claim 4, characterized in that the pulley is kept pressed against the friction disc and against the stop by means of two. freely rotatable round pressure plates abutting against one of its conical circumferential surfaces. Stockholm 1048. Sung]. Boktr. P. A. Norstedt & Saner 480089 f2 / 4 23 f7y.

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