DE1677165C3 - Process for the manufacture of thin-walled, flexible bearing linings - Google Patents

Description

The invention is described below with reference to the exemplary embodiments illustrated in FIG

xo

4 warning shown

* t, explained later. In the drawing, ⁰ ^ Jj ¹ - A shows a schematic side elevation of the two

^ litempel of ^{a press of a} device for the P ^ Lng of the process, between which a pressing tools, -eiulieiten or -kapseln rune of the successive machining is Ψ Worders,
caught? ⁰ ^ ° - top view of a contiguous

* ^Fl8'c -eifen of the between the parts of each

8 ³¹ wpiiee'aeleiter is, where sine of the finished work tools β . ^ _{After djese of}

tagerausiueiu 6 ^ _w & _rd ^
Strerfen aögci ^ ^^ _{according to Linic} 3.3 _of

^Fl f · «direction of arrow, with a tool to

Vt iiinaderoil filler openings,

Manufacture, the ^^ ^ _{rich the}

Flg · ^{4 e} "i ^e p: g 1

^F > ^e S line Top view of the lower part of a \ ^ι Ψ, HprKaosel in which the parts are shown, the

V change αεί width of the strip and to

\ erminn s pre-bending are used,

vorsiehend ⁿ s part of the tool, 5 eS section through a part of the capsule. H _m the finished bearing lining from Slriifcn U, it wi d in a plane, parallel to the vertical Sn through the 'center line of the strip, whereby also? Animal device for aligning the ^ lining-

and bounded away from each other by guides (not specified) that are similar to the guides Another capsule (F i g. 4) are designed so that the capsule, the upper and lower part of the Plungers 10 and 11 are held, can be removed from the press.

The first operation to be carried out in this capsule is the notching of the upper parts of the strips (reference number 9 in FIG. 2) with the aid of a tool 16 which is fastened in a holder 17 connected to the upper part 13 of the capsule. During this operation the strip rests on the _{upper side of a} holder 18, which is indicated by ge ^^ _Nliuel ^. ^ _{) On the lower} part 14

_the capsule is attached. After one or more steps of the intermittent movement, the strip arrives in _{the holder 18} via a notching tool 19. _The downward movement of the capsule part 13 causes the second operation, namely the notch of the bearing metal on the underside of the strip, to be carried out. During this second operation * the strip is held in place by the underside of the holder 17.

_{At the next level of the schnttW} e.se-

the movement becomes the strip under e ». Prague tool 20 brought, which was attached to the bracket 17 attached to the upper TeH of the capsule is. By moving the capsule 3 downwards, the third step is carried out, namely the hmp.agen a trademark and / or cner e.l-Nun

In particular, follow the manufacturer's 35 Schm _K , with the »no Bea, l» .u „ _f s

sssfS

being aligned. .

The strip is still unbent by eme first Capsule, which is carried out in a series of operations: which are explained in more detail below

ÄaieiSält an upper and a unt. R _P n parts 13 and 14, whose movement towards one another. ., η ^ - ^ ηγΜ, _w ith the part of the stroke in the ¹ ^ mt ^ re "B ei e between! _1C n the die one of the ^ "" in ^ rtj.n ^ rc _{Werkzcugcs 28} and de

jm ^ »» »» ~ ^ ^g _{cincs am} capsule ,. 14 bcü st.gter, Werl ^ uges brought. The middle one

Lindrically shaped, and the outer parts of the die will move over the lower edges with

run with a certain inclination to the cylindrical notched points of the part 37,

drical part. Similarly, the middle part is then the die tool 34 through the

of the protruding tool part 29 partially cylindrical capsule part 13 of the press moved downwards (eighth

drisch (reference number 30 in Fig.5), and the side 5 operation), so come the separating surfaces of the now

from the central part protruding parts 31 are similar to molded lining with the surfaces 40, 41 and

inclined towards the middle part of the die. 42 engages, causing the bearing liner to slide onto the

The front edges of the inclined outer exact circumferential length between the parting surfaces geTeile of the die tool are shear edges, which are brought, while at the same time the arcuate ones are arranged so that they with the shear surfaces 32 io surfaces 42 on the inside of the parting surfaces from the right end of the shear member 25 α form rounded corners. This eighth step work. The downward movement of the capsule part 13 is referred to as the “second molding stage”. During the fifth and sixth work steps from this form step, a previous part of the is performed, whereby in the fifth work step through the strips of a stamping press between the right shear edge of the die, incisions on both sides of the above tool 34 and the die of the strip are produced, which are subjected to only a part of the zen tool 35 (third molding stage), w or the width of the strip, while the further downward movement of the capsule part 13 of the manure in the direction of movement of the strip is carried out on the sixth operation by the axial widening of the bearing lining, in which the second molding stage is controlled.
Center piece of the strip part is cylindrically curved ao by the inclined surfaces 41 of the groove (Fig. 6), while the other parts by the one in the capsule part 37 were the parting surfaces of a cutout from the previous parts of the striped clothing with exact Contour angles provided so fens are separated by the inclined parts of the that the separating surfaces are diametrically flat when the tools are fitted outwards from the center piece and the lining is fitted into a bearing housing, are pressed downwards. J5 The strip will be on the first and the second

At the next stage of the intermittent forming stage by an arcuate support part 43 the movement of the last part of the sixth (Fig. 1) is prevented from being formed up to twisting operation between the left the strip. Part 43 has an opening 44 which communicates with part 33 of a semi-cylindrical die tool of a pressurized air source so that 34 (FIG. 1) which is attached to part 13. and the lin- 30 loose particles which may accumulate between the tools 34. the protruding part of a tool 35 are blown away,
brings. The axial length of the die part of the work- The strip then passes to another capsule, stuff 34 corresponds to three steps of the step-by-step which is indicated generally by 45 in FIG. A subsequent movement of the strip. The protruding end view of this capsule is shown in Fig.3. The vertical tool 35 is semi-cylindrical and is held by 35. With the help of this capsule, pin 36 is held in a ninth area, which is punched through the narrower passage for oil inlet openings. The capsule part of a stepped bore in the upper part 37 contains a base 46 in the plunger 11. The lower capsule part 14 passes through it. The peg of the pad go two arc-shaped parts 47 36 carries a flange 38, which in the further part of the upwardly, whose distance from the width of the strip offset hole can go back and forth and 40 corresponds.

the one on top of a row of spring washers between the two arcuate parts 47

39 sits in the capsule part 14. If the capsule part moves, one or more, at an angle to one another, are

13 ordered blocks 48 (Fig. 3) attached in the execution of the seventh operation, accordingly at the bottom, the part of the strip becomes outer through the corresponding number of oil filler openings to be punched out Ends of the protruding part 37 and the 45 gene. Through openings in the blocks go Die tool 34 in a semi-cylindrical shape punch 49, the axes of which are curved radially to the curved. The upper part 37 of the lower capsule part 50 of the bearing lining are arranged.

14 is cut away at 37 α , as a result of which the end pieces are provided with piercing pins which, together with the curved lining , can move downwards from the top of the inserts 51 α on the part 37, which is also on the underside. Here- 50 position 46 attached part 51 cooperate. The at the protruding part moves down and the inserts are shaped so that they press the spring washers 39 together at the ninth Arpresses. This work process a recess around the inside of each oil work process is hereinafter referred to as the “first molding step” to form a filler opening. If no punch is provided, draws. As FIG. 6 shows, the upwardly directed mold can only be a recess of the capsule part 37, on which the strip is formed, in which a lubricant supply is made available during the next two steps . The upper ends of the punches 49 move past, with grooves being gripped by one end 52 of a rocker, opposite sides of the protruding tool 35 mounted pivotably on a part 54 at 53, each groove being vertical is attached to one of the blocks 48. The ankale and inclined surfaces 40 and 41 has the 60 whose end of the rocker is forked and connected at 55 by an arched part 42. rounds, wherein the legs of the fork comprise a rod 56 fastened to the pressure-Moves the press the tool 34 on the first punch 10. The ab-forming step upwards, so the protruding rounded part follows it lies on a washer 57 attached to the rod 56 under the action of the spring washers. Then the lower edges of the bent 65 on the lower threaded end of the rod are carried, the partially molded liner over the Ni. It can be seen that with this arrangement, when the upper surface of part 37 is raised, and the rams 1 · and 11 move apart, on the next stage of the intermittent steps the ends 52 of the rockers are pressed down

7 8

the, with the arcuate portions 50 of the bearing lining eventually severed, so the portions

clothing to be perforated. This is done to the lower ends on either side of the center

a point in time at which the tools, through which the bevels 73 reached, and the retightening

the strip can be lengthened, d. H. the work edges of the parting surfaces have the lower ends

tools 34 and 35, are not actuated so that the 5 of the folds 74 reach. The lining will

above-mentioned longitudinal stretching of the strip through the thrust chuck, and the

away from the stop 27 can not take place. the front edge of the curved lining is

The strip eventually moves between the pressure on the shoulder 68 .

Parts 59 and 60 (Fig. 1) of a further unit or During the separation, the warehouse of

Capsule through which the finished bearing lining is held in a pad 76 (FIG. 4), which in turn

a tenth work step from the strip separated from one with springs 78 on the capsule part 60

and is provided with a locking projection 62. tied plate 77 is worn. On the part 60 is

The parts 59 and 60 can still be attached a shear and bending part 79 with the help of the guide,

Rungsstangen 61, which takes from the return springs 61 α that one edge of the bearing part and, if that

(see. Fig.4) are surrounded, move against each other, 15 tool part 63 goes further down, the edge

and part 60 is suitably by not outwardly against a shear edge or edges

specified devices on the plunger 11 fasten at the point 80 on the tool 63 presses so that

stjgt, the edge of the bearing lining sheared off and a

A tool part 63 is attached to the part 59 and the tongue is pressed outward. This forms one which is provided with a cutting edge 64 , which is provided with ao projection 62, through which the bearing part 67 is later held in a recessed shear part 65 on a part of a bearing housing. This tongue 66 interacts, which is indirectly connected to the part 60 or the locking projection can either be connected to one, whereby the separation of the bearing off-axial end of the separating surfaces of a bearing or in clothing is completed (reference number 67 in any position between the both ends Fig. 2). The tool part 63 is arranged with a shoulder 25. Because the combined action of the severing 68 is provided around the bore, creating an abutment severing step and the step in which the solid for the severed liner is created. Stellvorsprung is formed, a longitudinal extension of the

It is very important that the locking tab 62 prevent the strip from becoming one

is placed exactly on the bearing lining, since other time than the stamping of the strip in

this carried out the exact axial alignment of the lining 30 to the tools 34 and 35. To the-

determined in the bearing housing. this purpose is the tool part 63 on a lever

For this purpose, the tool part 63 with the system is similar to that of FIG. 3 attached. After

Shoulder 68 (Fig. 1) provided, which during the formation of the locking projection causes this

most section of the downward movement of the work-up moving tool part 63 that the

tool part 59 is located in front of the bearing lining. 35 bearing lining through the bottom of one on part

The part 66 carries two L-shaped thrust chucks 69, 60 attached part 81 is pressed down

of those in Fig. 7 only one is shown and the separated bearing lining of which from the

Distance is slightly larger than the width of the cutting tool part 63 is ejected. On the next

partly 65. There is a pin 70 on each thrust chuck. The step of the intermittent movement becomes the

that pushes the bearing lining back and forth out of the device in an opening in part 66,

Half a bearing liner is shown in FIG. 8 shown

which 71 is surrounded. One end of the sentence is poses. In this case the lining was made

on the thrust chuck and the other end on the one strip of three metals, namely one

Shoulder 72 at the end of a hole in part 66. Steel washer 83. An associated intermediate

The upper edges of the vertical legs of each layer of bearing metal 90 and a third shear liner 69 are bevelled at 73, while the thin bearing layer of a lead-indium alloy is made of the upper edges of the horizontal legs at 74 . The lining has a pressed outer

are edged. With this arrangement, if there is an outer cylinder surface and a machining

the tool part 63 is moved together with the liner ended inner part of the cylinder face in which a recess down the center piece of the liner 50 is formed with a pressed surface 85, to

gripped by the shear part 65. At the same time the bottom of which there is an oil filler opening 86,

comes the trailing edge of the bearing lining The inner edge of each separating surface 82 has a

on both sides of the cut-off parts with the bevels rounded pressed surface 87, and the ring-shaped

gene 73 in engagement, and the trailing edges migen surfaces on the edges of the lining of the separating surfaces grip the folds 74 on 55 are made of pressed, beveled partial surfaces 88

the thrust chucks, so that these against the disk feet and 89. The FeststeUvorsprung 62 is of the in

to be pressed. Is the middle piece of the Aus F i g. 4 generated capsule shown.

For this purpose 3 sheets of drawings

Claims (2)

¹ Rptätieune of the pressing tools for the arch-shaped Forming the strip and separating one roriuuue "hogene part of the strip an additional patent claims: dissolution of the strip, and thus a , SeCg of the bearing linings is effected “ ⁵ ! Γ Avoiding these disadvantages is already 1 Process for the production of thin-walled / ";" is known in which the bearing _{lining blanks, flexible bearing linings, in which a strip of} bearing material is cut off Strip of stock material gradually a comparatively ™ ^ ₀ ^ ₆ Lagerauskleidungsrorilinge nacheintikal back to the strip plane and herbeweghcne "processing stations are fed to Press with a number of processing stations io anuci _boger , ₅ if necessary with oil filling runs through and in which the strip is _versene n and finally embossed on these? Bearbejtungsplätzen during standstill """By embossing pressing is a very accurate processing between the stepping motions, α · _{the surface} of the sheet liners on the edits, among other things ™ | reached _ülti _ _{e he} f _or derliche shape with arcuate shaping of the. strip, ω about 15. & e _'ea ■ _{but by J} h a considerable width of the strip seen, by pressing and it cues * F ^ perpendicular linings _bearing for the ultimate removal of strip portions m £ _"ßrichtun p is accompanied. For this reason it is required to form finished warehouses, ricu running procedures, this characterized in that you; Pressing Since u ■ _{n by the sub-requested} of the strip in processes enclosing machining on the one 20 J "" erauskleidungsrohlinge make, but this seiis and the cutting operations enclosing "g" _{its vorausse} TZT that suitable means edits the other hand, at different z, egg ^ Management and alignment of the individual camps are carried out. lining blanks at the machining stations \ or- 2. The method according to claim 1, characterized in that ge ^ üaduy _b indicates that the cutting operations einschhe- * 5 ^g i "^ _avoid these disadvantages, it is further sequent machining the punching of oil £ Laeerauskleidungen by rolling a filling openings in the already arcuate overall ~ * ^a." _{"t; hatched} £ _n strip with the width of the finished pressed strip .0 Liner liners are separated from this strip while it becomes a warehouse liner shaped part of the strip is located on a roller. In this process, the rolling of the Laeermaterialstreifens occurring expansion of the ν stripes by the cutting and punching processes do not hindered because an elongation of the strip at the free Strip end can be done. However, the bearing liners made in this way have a very imprecise shaping, so that a subsequent precision pressing is required. The invention relates to a method of _the invention is based on the object em producing thin-walled, flexible storage _Ver f _a lead of the initially ichrittweise referred to operations department of thin, bendable "uskleidungen in which a strip of stock material _seed layer liners a vertically one way to the strip plane and _{type to} provide, by running at the verherbewegliche by Preßvorgange press with a number of machining _{45 ursac} hte shifts due to the expansion of the lung spaces and in which the strip to the strip by the cutting processes does not hinder these processing stations during the standstill be. . E between the step movements is processed, where- _{D each} object is achieved according to the invention by the shape of the strip specified in the processing, inter alia, the arc-characterizing part of claim 1, over the width of the ₅₀ method features. In this manner, the strip is seen the finished bearing separating strip portions in the form of finished avoided by pressing and the final _undesirable deformation _of linings, without the need to include location liners. is, bearing lining blanks before the PreBvorgan- Such bearing linings are to a large extent _{separated from the} strip. Number for the bearings for example, in comparison it can i _{55 Dabe} in many cases be advantageous to internal combustion engines is required. It is therefore desirable _{if d} j _e cutting operations inclusive Edit Location linings possible continuously, rapidly _{obligations, the} punching of öleinfulloffnungen in and be able to produce cheap. include already arcuately pressed strips It is, for example, a process for preparing _In the corresponding device of the Stripes of positional liners is known in which a _strip-6o f _s batchwise fen to the individual tools by being pressed from I agermaterial moved to this strip-, whose mutual distance along the fen a verlau- in the longitudinal direction of the strip length of the strip of the batch taking place be fcnde axis arc to bend and at the same time _away ung corresponds. All operations in which de individual sections in the form of a bearing lining strip is stretched, will be carried out if they are to be separated. 6 ₅ the tools that do the other machinings from It has been found, however, that the pressing lead to have detached from the strip, so that an off of the strip an enlargement of the dimensions expansion of the bearing material without hindrance of the strip causes so that at a simultaneous can find.