US1936454A - Apparatus for making bearings - Google Patents

Description

Nov. 21, 1933. w KLQCKE APPARATUS FOR MAKING BEARINGS Filed Nov. 5, 1928 ATTO RN EY6.

Patented Nov. 21, 1933 UNITED STATES APPARATUS FOR MAKING BEARINGS William H. Klocke, Woodhaven, N. Y., assignor to The Cleveland Graphite Bronze Company, Cleveland, Ohio, a corporation of Ohio Application November 5, 1928. Serial No. 317,394

2 Claims.

The present invention, relating, as indicated, to an apparatus for making a bearing is more particularly directed to the manufacture of lined and semi-cylindrical bearings consisting of a semi-cylindrical sheet of a tough, strong supporting element, such as steel, provided on its inner surface with a lining of suitable bearing metal, such as babbitt, integrally united thereto, and to the manufacture of this bearing from flat stock to limits of great accuracy.

To the accomplishment of the foregoing and related ends, said invention, then, consists of the means hereinafter fully described and particularly pointed out in the claims; the annexed 5 drawing and the following description setting forth in detail one apparatus exemplifying my invention, such disclosed apparatus constituting, however, but one of various applications of the principle of my invention.

In said annexed drawing:-

Fig. 1 is a side elevation partially in section of one form of apparatus adapted to carry out my improved method; Fig. 2 is a side elevation of the blanks'operated upon by the apparatus of Fig. 1; and Fig. 3 is a view in perspective of the formed semi-cylindrical bearing.

In the manufacture of lined half bearings where the bearing is formed from flat stock, or where the half bearing is formed from tubular stock which is split and then reformed, it is extremely diilicult to secure an accurate semicylindrical shape in the bearing, due chiefly to the irregularity in the stock whichis used. The present invention is directed to a means for forming semi-cylindrical shells to be subsequently lined with suitable bearing metal from flat rectangular blanks, and I have found the present method to be more accurate than those now in general use and to produce consistently semiround, accurate half shells.

Referring now to Fig. 1, there is shown one form of apparatus adapted for carrying out my improved process, this apparatus consisting of cooperating dies 1 and 2 and a plunger or feed mechanism 3 for forcing the rectangular blanks between the dies. The dies consist of a cylindrical mandrel 1 and a correspondingly curved die surface 4 on a complementary die 2, this die being disposed concentrically adjacent to the mandrel 1. The feed mechanism, consists of the plunger 3 operating in suitable guides 24 and having a projection 5 adapted to engage the upper end of the blank 6 carried in a magazine 7 through which a number of blanks, assembled as indicated, may 55 be passed by means of a spring pressed plunger 8. The plunger 3 may be reciprocated by any suitable mechanism, such for example as the link 9, bell crank lever 10, and operating crank 11, and when forced downward the projection 5 on 60 the plunger engages the uppermost blank 6, forcing it into the position of the blank 12 with the lower end of the blank forced around between the concentric die surfaces 1 and 4. The plunger is then returned, engages the second blank and forces this down in the same manner as before. Thus the uppermost blank is caused to force the lower blank, indicated by the numeral 12, around between the two dies which engage this blank through an angle of not less than 20 degrees. The passage of the blank between the dies rolls or curves the blank into the desired semi-cylindrical shape, and the blanks as they pass through the dies are then curled around the mandrel 1 until they strike a stop 14, which causes them to drop from the mandrel in their finished condition. The action of thedies causes the metal to be set during itspassage therebetween and permits substantially no springing back of the metal, which has been the cause of so much inaccuracy in other methods of forming. By the operation of present device it is possible to form sufficiently accurate semi-cylindrical shells so that no additional reforming operation is required before use.

The formed shells 15- (see Fig. 3) may then be lined internally in any suitable manner with bearing metal' such as babbit or the like, or may be trimmed to length, machined inside and outside and ground to place them in condition for final use.

Other forms may be employed embodying the features of my invention instead of the one here explained, change being made in the form or construction, provided the elements stated by any of the following claims or the equivalent of such stated elements be employed, whether produced by my preferred method or by others embodying elements equivalent to those stated in the following claims.

I therefore particularly point out and distinctly claim as my invention:-

1. In an apparatus for the making of semicylindricaP bearings, a blank magazine, a feed plunger and cooperating dies, said dies being located below said magazine and comprising a cylindrical mandrel and a segmental cylindrical surface of less than 180 in circumference, and means for feeding blanks from said magazine to said dies.

2. In an apparatus for the making of semicylindrical bearings, a reciprocating feed plunger having a projection on one side thereof, a blank magazine adjacent said plunger, means pressing blanks in said magazine against said plunger and cooperating dies comprising a cylindrical mandrel and a segmental cylindrical surface, associated with said plunger, said projection engaging one of said blanks upon each reciprocation of said plunger and forcing it between said dies.

WILLIAM H. KLocKE.

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