DE8230864U1 - CHARGING DEVICE FOR MANIPULATING TUBES OF SQUEEZING PRESSES - Google Patents

Description

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SMS Hasenclever Maschinenfabrik GmbH, 4000 Düsseldorf 1

Charging device for manipulating the tubes of upsetting presses.

The upsetting of the thickened ends of pipes is done in upsetting presses, and usually requires two, rarely one or more than two (three or four) operations. This is why upsetting presses are split vertically, mostly with two on top of each other located engraved dies. The dies consist of a front pair of jaws for clamping the tubes and a rear pair of jaws with the upset engraving. The most common two operations of the Pre-upsetting and final upsetting are carried out one after the other in one heat in the overlapping engravings of the die. The quality of the upsetting operation depends to a considerable extent on the method of operation and thus the training the charging device manipulating the pipes. In the case of vertically divided dies, it is necessary to pre-position the pipes to align the dies exactly with the centers of the engravings and to hold them until the dies are closed, to avoid tension and damage to the pipes.

PATENTANWALTS S.W.j ^ MMERICH, GERD MH.LLER D. GROSSE F. POLLMElER

October 20, 1982 - 2 - 15 325 pr.kö

Furthermore, a very precise axial positioning of the tube |

end in the dies necessary on the one hand for the |

Compressing the necessary amount of material in the compression engraving |

close and on the other hand about upsetting errors (dimensional deviation- | '

genes, wrinkles, especially in thickened |

Pipe ends), especially the exact axial |

Positioning of the transition ζ one between the hot pipe end! '

and cold pipe in the die engraving is necessary. To get the j

Flow of heat from the heated pipe end to the cold pipe * ■

Keeping the transition zone low and narrowly delimited is I.

a quick transfer of the pipes from the heating system |

in the exact positions for upsetting also of large |

Meaning. With all of this, the noise development during the Mani |

The pulverizing of the pipes must be observed and kept to a minimum. Dar- 1 from this results the task of providing a charging device for · | To create pipes that work precisely, quickly and with little noise |

tet. I.

Are the charging devices used so far for manipulating the pipes on upsetting presses of the type mentioned above? from a roller with V-shaped rollers as a means of up \ would take the manipulative tubes which are mounted on a raisable and lowerable ^H bridge and reversibly drivable. The roller table is fed from a support grate which bridges the space between the induction coils for heating the pipe ends and the upsetting press and is inclined towards the upsetting press. The tube lying on the roller table is aligned with the center of a die engraving by vertical adjustment of the bridge and axially moved in and out of the area of the dies by the rollers

Patent attorneys; P ₁ W tfER / IMEHlCH ^1. DEfiD * MSU-ER P. GROSSE F, POLLMEIER

October 20, 1982 - 3 - 15 325 pr.kö

too little precise and also relatively noisy, another The disadvantage is that a new pipe can only be manipulated in the sizing press when the previous pipe removed from the sizing press and the liftable and lowerable bridge has moved back into its upper position. Consequently it is not possible to manipulate a second pipe in the sizing press, which means that not at the same time can be worked in both die engravings located one above the other. This charging device does not solve the problem Problem, the solution of which is the aim of the present invention.

The object on which the invention is based is achieved in that pliers - at least two arranged over the length of the pipe - are provided, the three in a vertical distance of the engravings on top of each other arranged perpendicular plane and transversely to the axis of the tubes can be moved simultaneously and in the same direction in a closed path are, with the highest and lowest point of the path vertically one above the other at a distance corresponding to that of the graph vuren are in the dies, the motion drive is included! Reaching the highest and lowest point on the path j sequence is briefly interrupted, and the lower rest position of the j upper tongs is a congruent axial pipe layer to one in j the tube clamped in the upper engraving of the dies, that j furthermore lowers the upper and lower of the three pliers j right to the orbit as a normal plane opposite to each other by j Distances greater than the axial die length on the dies to j

and are movable away from these, and that the tongs are in the open position in the upward part of the movement sequence 0 and are controlled in the closed position in the downward part of the movement sequence.

The use of moving tongs in charging devices for manipulating workpieces on forging machines 35

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PATENTANWÄLTE ₍ iF.W.'HEMM ^ RI.qhl · 'GE, flD, foPLLER · D. GROSSE · F. POLLMEIER

October 20, 1982 - 4 - 15 325 pr.kö

known and not a feature of the invention in the Overall combination of the aforementioned features is justified and is able to solve the problem in this combination.

The pipes clamped in the die engravings when the die halves are closed are sufficient - provided they are short positioned. A simple support would be sufficient for longer pipes. However, to the pipes at any time • / secure, in particular to have secured against unwanted, disadvantageous axial displacement, is according to a Another feature of the invention provided that the tongs (transport tongs) moved in the web are arranged in a stationary manner Pliers (holding pliers) - at least two over the length of the pipe - in alignment with the corresponding lower rest positions dt; r upper transport tongs or upper rest positions assigned to the lower transport tongs.

The upper of the three moving tongs (transport tongs), arranged one above the other, take over in their upper position the tubes heated at one end from a ν readiness position, which - as is known - the end of a can be inclined support grate. The transport over the support grid can lead to an axial change in position of the pipes and makes a renewed axial adjustment of the pipes in the standby division necessary. aside from that the generation of noise when the pipes roll on the support grate is undesirable. To avoid these disadvantages is provided according to a further feature of the invention, that the tongs (transport tongs) moved in the web Pivoting levers arranged pliers (transfer pliers) are assigned, one end position of which is a congruent axial one

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PATENTANWALJIi _{1 (} FW; HEMIvj [fpiqii (, · GCpP IVtDUER · D. GROSSE · F. POLuMEIER * ^έ

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October 20, 1982 - 5 - 15 325 pr.kö

Pipe layer with the upper transport tongs in the upper rest position and the swivel range of which bridges the distance to a pipe laying table on the side of the sizing press, wherein the pipe storage table is the exiting from the heating system or coming free from the heating system Pipes a short distance.

It is advantageous if, according to a further Mrf.ü-kmal the Invention a square path of movement of the transport tongs is provided, in which the vertical track sections the correspond to the vertical spacing of the engravings in the dies and the interruption points in the movement sequence (rest positions the transport tongs) are provided in the middle of the horizontal track sections, as this results in the insertion or removal of the pipes into or out of the engravings of the dies and the stationary pliers (holding pliers) will.

The quadrangular trajectory is - as the invention provides as an advantageous solution - achieved in that the Transport tongs sit on walking beams, which - as is known, the coupling of two designed as wheel crank drives Form parallel links, with an auxiliary crank embedded in a main crank a fourfold via the gear train Number of revolutions compared to the main crank and the radius of the auxiliary crank is about half the arch height of a quarter circle segment in the main crank circle.

The necessary interruption of the exercise process in the highest and low point of the path of the moving tongs according to a further feature of the invention by a between the speed-controllable Drive and the BeSwegungäantrieb

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PATENTANWÄLTE « _t f! V5. '(/ EMMf pjcyj ·, ÖERfl MtILLER <D, GROSSE' F, POLLMiIgR

2O _{October 1} , 1982 -6 - 15 325 pr.ko

fcetes step gear causes / for which the invention as advantageous solution a kind known per se, providing by the connection of a gear crank drive with a crank loop formed cycloid gear, wherein an intercalated in the main crank the gear crank drive auxiliary crank via the gear drive a double number of revolutions compared with the main crank running / the radius the auxiliary crank is about a third of the radius of the main crank and the auxiliary crank engages in the loop lever mounted on the same axis as the main crank.

To the state of the art with regard to the formation of a transmission to achieve a quadrangular movement path and to Formation of a step gear on devices for manipulation of workpieces on Schiniedepresses reference is made to DE-PS 28 06 987, through which such gear - like mentioned - are known per se.

As a particularly advantageous embodiment of the transmission for the additional perpendicular to the path of the common movement of the tongs as a normal plane directed movement of the upper to the lower tongs opposite to each other, the invention provides according to a further feature that the upper and lower transport tongs sit on the upper and lower carriages , the upper carriage opposite perpendicular to the plane normal to the Hubbaiken movable and j angetrie- by opposite strands of rope or \ chain drives or opposite rack gears are ben to the lower carriage, and in that each rope, chain or rack and pinion \ across a circular sector rocker of a crank mechanism with adjustable stroke and adjustable reversal points is driven. \

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PATENTANWÄLTE !, ftW! J-iEMM £ filCU '. Ge'hqWlLER D, GROSSE F. PÖLLMEIER

October 20, 1982 - 7 - 15 325 pr.kö

As already mentioned at the beginning / is a quick handover of the Pipes of considerable importance. This requirement is met by various of the inventive features described above and furthermore improved by, according to a further feature of the invention / that the indexing gear a Gear branching with branches in the transmission ratio 1: 1 to the walking beam drives for the main movement of the Transport tongs / to the slide drives for the transverse movement of the upper and lower transport tongs and to the Rotary drives for which the handover is arranged downstream, so that all movements of the tongs are carried out by a single drive. The timed sequence of all Movement of the clamps is secured, costly sequential controls that require safety times not mandatory.

Special precautions must be taken so that the pipes can be removed from the delivery table behind the heating system without any loss of time. Therefore, according to a further feature of the invention the pivot levers of, · transfer pliers coupling double swing-four-bar linkages form, wherein arrangement of the clamps to the coupling extensions, and forming the power swing as an angle lever, whose second arm turn form overshoot of Rurbelschwingen-four-bar linkages with powered winches. As a result, a coupling curve can be achieved for the tong movement, which runs parallel to the table surface in the area of the storage table for the pipes, so that the placing of the pipes on the table and the starting of the transfer tongs can be carried out without particularly precise timing or safety times.

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PATENT LAWYERS! F, | V, ¹ ^ EMMEFiI ₄ CH j _# QEfip ₄ ^^ LjER · Θ-, LARGE · F ₁ POLLM6IER

October 20, 1982 - δ - 15 325 pr * kö

An embodiment of the invention is shown in the drawings shown *

FIG. 1 shows the charging device in a front view in an overall view

FIG. 2a shows seven step sequences for charging one

^1S 9 tube each schematically in front and side view

10

Figure 3 shows on a larger scale a section of the Fi ^ gur 1 why the

FIG. 4 shows a side view from the viewing direction indicated by "IV" which can be seen in FIG.

Figure 5 shows the construction of the stepping mechanism, to the

FIG. 6 the kinematic principle and 20

Figure 7 shows the speed ratio generated by the stepping gear.

FIG. 8 shows the structure of the movement gear for the main movement directed transversely to the pipe axis

to the

Figure 9 shows the kinematic principle.

Figure 10 and

Figure 11 show in side views from the through the line

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PATENT LAWYERS! FA ¹ ! Hi ^ MEFjI ₁ CH, J, GEflp.Wp ^ ER <D ₁ LARGE ■ F. POLLMElER

October 20, 1982 - 9 - IS 325 pr.kö

X-X in Figure 3 marked plane in two operating positions of the handover clamps> for what purpose

Figure "12 shows the coupling curve along which the transfer ^ pliers are moved.

FIG. 13 shows in a schematic perspective the overall overview of the gear arrangement.

As FIG. 1 shows, the charging device consists of two transport tong devices 1, two transfer tong mechanisms and three holding forceps mechanisms 3, each one below the other are the same. The charging device is driven by a motor 4 which is continuously adjustable Gear 5 drives the step gear 6. Combined with the indexing gear 6 is a split gear 7, which drives a second split gear via a cardan shaft 8. Branched off from the split gear 7 are two Outputs via cardan shafts 10 and 11, each with a movement gear 12, which are used to drive the transport tong mechanisms 1. A base frame 13 holds the components together into one unit.

The scheme shown in Fig. 2 shows the operation of the charging device in the steps a to g. With 15 the manipulated pipes are designated, namely with

12 3

15 a first, with 15 a second, with 15 a third

and with 15 denotes a fourth successive tube, the different, successive positions of which are denoted by cC β f- ζ and £ . - 1 60 is the upper one,

Patent attorneys: fWKeMmeiSichI gerd moller · d. large · f. pollmeier 'ι

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October 20, 1982 - 10 - 15 325 pr.kö |

- 16m is the middle one and - 16u is the lower of three in line- |

other transport rods of a set of at least j two sets arranged along the length of the pipe -. At 17 is

one of at least two ί arranged along the length of the pipe

Uborgabezangen and with 18o / 18u are pairs of holding forceps ]

designated. In Fig. 2a 15 oC represents the position of a first pipe 15 in position ei , that is the position of the pipes r on the support table after the pipes have left the heating system I. Transfer tongs 17 grip the pipe 15 'and f

bring it to the β position. At the same time, the trans |

port pliers 16o, m and u along the first half B 1/2 I

their trajectory to their superscript, in which the trans- f

port pliers 16o are in line with the position ^ of the pipes, as in p

this can be seen from Fig. 2b. Both the transfer tongs I

17 as well as the transport clamps 16 remain a short WEI · fi

Ie in this position / i and the transfer tongs open f,

17, while at the same time the transport tongs 16o close *

sen. The transport tongs 16 with the one of the upper transport j,

Tongs 16o gripped pipe 15 now move along the second half B 2/2 of their trajectory into their lower position, i in which the transport tongs 16o are in alignment with the upper HaI-tezangen 18o and an upper engraving of a die 19/20. The vertically divided die is in the open position so that the tube 15 can move in the gap between the die halves. Simultaneously with the lowering of the transporting tongs 16, the transporting tongs can be moved towards the die 19/20 16o, so that the end \ of the pipe 15 in the upper engraving in that for the upsetting of the end f necessary degree occurs. The transfer tongs 17 meanwhile pivot back into their starting position. In this j position the Iranian pincers stay again for a short time

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PATENT LAWYERS! FWUEMMESiCH «GfeÄD MÖLLER · D. GROSSE · F. POLLMEIER · /

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October 20, 1982 - 11 - 15 325 pr.kö

While the holding tongs 18 and the halves of the die 19/20 close and the transport tongs 16 open, the position shown in FIG. 2c being reached. Meanwhile the first upsetting operation in the 19/20 die
is carried out with the tube 15 clamped between the clamping jaws 20 of the die 19/20 and supported by the holding tongs 18, the transport anges 16 move back along the first half B 1/2 of their path of movement in their

Höchstel3 .mg, with the upper transport tongs 16o like ι

remove from the die 19/20 in the position for!

2 '■■

Takeover of the next tube 15, which is simultaneously pivoted I by the transfer tongs 17 from the position oL to the position β. They stay in this position
Transport tongs 16 and the transfer tongs 17 again one

15 · a short while, the transport tongs 16 close and the
Transfer tongs 17 and the holding tongs 18 open. As shown in FIG. 2d, the die 19/20 is now opened, the transfer tongs 17 pivot back into their starting position and the transport tongs 16 move back into their lower position

along the second half B 2/2 of their trajectory, the tongs 16m moving the tube 15 from the upper engraving according to position U into the lower engraving according to position & and the
Tongs 16o insert the pipe 15 with simultaneous axial movement in the upper engraving according to position ^ of the die 19/20. Then - see Fig. 2e - the die 19/20

1 2
closed. The tubes 15 and 15 are clamped by the clamping jaws 20 of the die and the tube 15 and the tube are completely upset in the engravings of the die part 19
15 pre-compressed. At the same time, the transfer tongs 17 pivot another tube 15 from the position <j ^ into the
Position A and the transport tongs 16 run on the first

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PATENTANWÄLTE! F.W. '& EMMERJCH.-jpERO, Mq (M-ER · D. GROSSE · F. POLLMEIER

October 20, 1982 - 12 - 15 325 pr.kö

Half B 1/2 of the movement path in the upper position, where they remain for a short while, during which the transport tongs 16 are closed, the transfer tongs 17 and the holding tongs 18 are opened. Then, as shown in FIG. 2f, the die 19/20 is opened, the transport tongs 16 travel on the second half B 2/2 of their trajectory again in low stalls and the transfer tongs 17 pivot into their starting position corresponding to the pipe position d. return. It will

j (J the tube 15 from the position β in the above engraving according to

' ' 2

s 10 position U, the tube 15 brought from the upper into the lower engraving according to position <f and the tube 15 with simultaneous axial movement of the lower transport tongs 16u from the lower engraving into position £. After the die 19/20 is closed again - Fig. 2g shows this, the tube 1 ο ^{ό is} pre-compressed in the upper engraving and that

2 '

Tube 15 finished compressed in the lower engraving. The holding tongs are closed, the transfer tongs move a new pipe 15 from the oC - to the Jo position, the transport tongs 16 are opened and move again along the first half B 1/2 of the movement path to their upper position. The completely compressed tube 15 is released and transported away in a manner not shown. In the case of pipes of large dimensions and / or large wall thicknesses that do not allow a common pre-upsetting and final upsetting of two pipes, the workflow can be controlled so that the transfer tongs 17 only convey a new pipe every second full movement cycle of the transport tongs 16 and accordingly only every j second pipe position is occupied. This can be done in the simplest possible way

Wise done by the fact that in every second cycle the 0 supply of pipes is blocked in the position ςϋ and the work cycle of the heating system is reduced accordingly.

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PATENTANWÄLTE j = .wi hÖJlMERjbjH ./gERD^aLj^R · D. GROSSE · F. POLLMEIER ^ ^J

October 20, 1982 - 13 - 15 325 pr.kö

The details of the design of the charging device can be found in FIGS. 3 to 13.

The stepping gear 6 is driven by the motor 4 (see FIG. 1) via an infinitely variable gear 5, with the gear 5 being able to adapt the work cycle of the charging device to that of the heating system for the pipe ends and that of the upsetting press. The main component of the charging device are the transport tong mechanisms 1, one of which is shown in FIGS. 3 and 4 on a larger scale. The movement gear 12 of the transport tong mechanism 1 is driven from the branch 21 of the branching gear 7 via a cardan shaft 10. In the movement gear 12, an intermediate wheel seated on the shaft 23 drives two gear wheels 24. Each of these gears 24 forms a main crank with a shaft 25 rotatably mounted in it eccentrically. The shaft 25 is provided with a pinion 26 which rolls on an internal gear rim 27 fixedly arranged in the housing 22. Since the internal ring gear 27 has four times the number of teeth than the pinion 26 on v / eist, the shaft 25 rotates four times when. the gear 24 has rotated once. The shaft 25 carries eccentric pins 28, 29 at both ends, the eccentricity of which is dimensioned such that the center of the eccentric pins 28, 29 follows a path B as the gear wheels 24 rotate, as shown in FIG. It corresponds to the eccentricity et- Ua half the arch height in the quarter circle segment over the circumferential circle of the shaft 25, so that the path B corresponds to a square with slightly rounded corners. On the eccentric pins 28 and 29 there are lifting beams 30 which carry the transport tongs 16 and move them in the path B transversely to the longitudinal axis of the tube 15 in the manipulating manner.

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PATENTANWÄLTE 5 F, W. ' MeM ^ R-I ^ .GE & q, M! CJtI-ER'D · LARGE-F ₁

October 20, 1982 - 14 - 15 325 ptf.kö

The operating mode described with reference to FIGS. 2a to "g is never provided, the movement unit B is divided into two halves B 1/2 and B 2/2 / and the movement is interrupted for a short while between the two halves / in order to close or close. Opening of tongs when the tongs and pipes are at a standstill in the respective positions cC, A υ, (/ and ζ . This interruption of movement is brought about by the indexing gear 6, which is connected between the drive 4 and the branching gears 7 and 9. This Indexing gear

\ 10 is described in more detail with reference to FIGS. The drive the step gear takes place from the motor 4 via the continuously variable gear 5, whose output via V-belts 31 and V-belt pulley 32 drives a shaft 33 at the input of step gear 6. A pinion seated on the shaft 33 34 engages in a gear 35 which is rotatably seated on a bearing pin 36. The bearing pin 36 is rotatable ^ anchored firmly in the housing 37 and carries a ring gear 38 which is seated in a rotationally fixed manner on it. In the gear wheel 35 is eccentric a crankshaft 39 rotatable which, with the one seated on it, rolls on the stationary ring gear 38 Pinion 40 rotates. The pinion 40 is half as large

, Number of teeth as the ring gear 38, so that the crankshaft 39 rotates twice with one revolution of the gear 35. The crankshaft 39 carries with an eccentricity which is approximately one third of the eccentricity of the crankshaft 39 in the gear 35

1 constitutes / a crank pin 41 with an attached roller, and |.

engages with the crank pin 41 in a groove of a loop \ hebeis 42, which rests on a shaft 43 mounted coaxially to the bearing pin 36, so that the shaft 43 with | its output gear 44 is rotated intermittently. The respectively resulting in dependency of the rotation of the gear 35 position of the crank pin 41 is shown in Fig. 6, WAN k

PATENT LAWYERS ^! F, '//, KEMMElHCH!, GEfiptfoOUiER' D. GROSSE ■ F, POLLMEiER

October 20, 1982 -15 15 325 pr.kö

The rotation counting ratio n ₁ / n ₂ between the gear 35 behind the input and the shaft 43 at the output of the step gear 6 is shown in FIG. It can be seen that the indexing gear switches on in the full revolution of the output gear 44 of the indexing gear 6 after every half revolution a standstill which makes up about a tenth of the total revolution time.

At the same speed as the shaft 21 is from the branching * transmission 7 a crankshaft 45 is driven, which via a connecting rod 46 a pivoted at 48 circular sector rocker 47 moves. This circular sector rocker 47 is provided with a toothing 49 above the circular arc and rotates reversing a pinion 50 engaging the toothing 49 on a shaft 51. In turn, the shaft 51 turns over a cardan shaft 52 a capstan drum 53 which moves an endless rope guided over a tensioning pulley 54. Warehousing 55 of the capstan drum 53 and the yoke 56 supporting the tensioning roller 54 are connected by a bridge 57 which is part of of the lifting beam 30 and at the same time carries the middle transport tongs 16 m of the three transport tongs 16, as well as two Slide guides 58 and 59 for an upper slide 60, which carries the upper transport tongs 16o and a lower one Carriage 61 which carries the lower transport tongs 16u.

The carriage 60 is on the upper run and the carriage 61 is on the lower run of the rope between the capstan drum 53 and tension pulley 54, and the two slides 60 and 61 are evenly moved in opposite directions by the rope strands, the upper transport tongs 16o when lowering a pipe 15 to the center of the upper engraving of the die 19/20

PATENTANWÄLTE F, W, HEMMERteHl ^ d ^ OM Cj I ₁ , L = ζ IJ / D. '^ / FQijSS · F, POLLMElßR

2Oi Okfeeber 1982 - 16 - 15 325 prikö

the tube 15 is moved into the die 19/20 and the lower one Tränspörtzang ^ I6u when lowering a pipe 15 from the In the middle of the lower engraving of the die 19/20, the tube 15 is also axially removed from the die 19/20. By adjusting the effective lengths of the radius on the crankshaft 45 and the length of the connecting rod 4 6 can determine the end position of the tubes 15 in the die 19/20 and the way dör axial displacement of the Pipes 15 changed to ground.

■ · / 1Ö The same as from the split gear 7 is also from Branching gear 9 a branch for driving the second transport tong mechanism 1 is provided.

Another branch of the branching gear 7 and also present on the branching gear 9 is one with same speed as the shaft 21 and the crankshaft 45 driven crankshaft 62, which via a coupling rod 63 an angle lever formed from the two legs 64 and 65 moves. The angle lever 64/65 is on a pin 66 stored, which is attached to the housing 67 of the stepper 6 s * nd Branching gear 7 is flanged. The pin 66 and the bearing of the crankshaft 62 form the standing joints the housing 6 7 serving here as a bridge frame for the crank 62, the coupling rod 63 and the angle lever arm 64 four-bar chain formed as a swivel arm. The angle lever arm 65, which performs an oscillating movement, is the drive rocker in another four-bar chain that connects the pin 66 and one of a console 68 on Housing 67 has a second pin 69 carried as standing joints, furthermore a steering rocker 70 and a coupling 71, wherein a coupling extension 72 to the coupling 71, the one

PATENTANWÄLTE P ₁ W, HeMME ^ ifißi i'öEMö ^ LlIr S ₄ $ & ££ & § <F. I ⁶ OLLME (ER

₍ f October 20, 1982 - 17 - 15 32S pr-kö

Transfer tongs 17 of one transfer tong mechanism 2 carries ₄ AUf the same way, the transfer tong 17 is the second

!; ■ Transfer tong mechanism 2 Via the corresponding junction

moved on the split gear 9. The four-link chains of the

5 transfer gear mechanisms 2 are designed so that the k

\ From the transfer tongs 17 to the coupling extensions 72 ί.

1 driven coupling curve 73 a straight-lined exit

I cut has in which the pliers 17 slowly radially to be moved onto the pipe lying on a support table 74

.., \ 10 gen, where the distances drawn in the coupling curve 73

f of the points (see Fig. 12) correspond to the same time units

I represent the distance traveled. This ensures

f that without special precautions, e.g. safety * -

Ί times, a flawless takeover of the pipes 15 from the storage

| ^! 15 table 74 is carried out by the transfer tongs 17. The filing table

I 74 can be moved around a joint 75 by means of a lifting device 76

Is to be pivotally I shown in a high position as shown in Fig. 11, 4 by which the inlet of a pipe 15 in the region of the pliers Ubergabe- Ψ excluded 17th Another possibility is

^I I 20 between the crankshaft 62 and their drives in the encryption \ branching driven 7 and 9 provide switchable clutches,

I so that the transfer tongs 17 stop for one revolution each.

! (J can be set. Blocking the pipe inlet or ■ shutting down the transfer tongs 17 can be used in the event of a malfunction

'' ■■ 25 be provided or take place in every second cycle of the transport tong movement, if the two engravings of the one die • are to be covered with a total of only one tube. To adjust the exact position of the tubes 15 on the support table, an adjustable stop 77 is provided. 30th

To the schematic perspective illustration of the gear arrangement in the entirety that FIG. 13 shows, and for the interaction of the transmission groups, reference is made to the description refer to the other figures. 35

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PATENT LAWYERS F.W. HEMMERI (^ - 'GERD MoUER.' D.'GflOSSE · F. POLLMEIER

October 20, 1982 - 18 - 15 325 pr.kö

Although in practice upsetting presses are mostly carried out with dies with two superimposed engravings are provided and the invention is described in connection with such upsetting presses, the invention is not limited to this, but can also be used for dies with more than two equally spaced engravings. In such a case, the transport tong mechanisms 1 instead of a central transport tong 16m with a correspondingly larger number (number η of the overlapping engravings minus one) of the same vertical distance of the engravings arranged vertically one above the other

1 n-1
To provide transport tongs 16m to 16m, and there are ί correspondingly more stationary holding tongs to be arranged, with & otherwise the same design of the charging device according to the invention.

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Claims (1)

PATENTANWÄLTE FW, HEMMERICH · {3EFf D WO-EFt; D.jGFfOfiSEi- _t l »! POLLMEIER October 20, 1982 - 19 - 15 325 pr.kö SMS Hasenclever Maschinenfabrik GmbH, 4000 Düsseldorf 1 · Claims . Charging device for the manipulation of pipes on upsetting presses with vertically divided dies provided with two (or, n} superimposed engravings, which are formed from a front pair of jaws for clamping and a rear pair of jaws with the upset engravings, the charging device within a transverse transport for the pipes is arranged and has means for receiving the tubes to be manipulated, with which the tubes can be moved axially into and out of the area of the dies and vertically transversely to their axis into the engravings,
characterized, that as a means for receiving the pipes (15) pliers (16) - at least two are arranged over the length of the pipe - there are three (or η + 1 times) (16o, 16m, 16u) arranged at a vertical distance between the engravings one above the other in a vertical plane and transversely to the axis of the tubes (15) can be moved simultaneously and in the same direction in a closed path (B), with the highest and lowest Point of the path (B) vertically one above the other at a distance corresponding to that of the engravings in the dies (19, 20) the motion drive starts the motion sequence when the highest and lowest point on the path are reached briefly interrupted, and the lower rest position of the upper tongs (16o) a congruent axial pipe layer (if) to one pinched in the upper engraving of the dies (201 Has tube (15) / that furthermore the upper (16ö) Φ t 4t * λ * 4 * i It 14 * it ** 4 * * * t i i t * i Ii ti it «4141 PATENT LAWYERS F.W. HEMMERICH ^ GERQ MDUER -O. GRtJSbE - * - R. POLLMEIER October 20, 1982 - 20 - 15 325 pr.kö and lower (16u) of the three (or n + 1) tongs (16) in addition perpendicular to the path (B) as a normal plane opposite to each other by distances greater than the axial die length on the dies (19, 20) are movable towards and away from these, and that the tongs (16) in the upward direction directed part of the sequence of movements (B 1/2) in the open position and in the downward part of the movement sequence (B 2/2) are controlled in the closed position. / 10 2. Charging device according to claim 1, characterized, that the tongs (16o, 16m, 16u) moved in the path (B) (Transport tongs) stationary tongs (18o, 18u) (holding tongs) - at least two aligned over the length of the pipe with the corresponding lower rest positions of the upper transport tongs (16o, 16m) or upper Rest positions of the lower transport tongs (16m, 16u) assigned. \ 20 3. Charging device according to claim 1 or 2, characterized in that \ j ν that the tongs (16o, 16m, 1ou) j (transport tongs) moved in the path (B) are arranged on pivot levers (70, 71) ί pliers (17) (transfer pliers) are assigned, one of which End position (ß) a congruent exial pipe layer with the upper transport tongs (16o) in the upper rest position, and the pivoting range of which bridges the distance to a pipe depositing table (74) on the side of the sizing press.
30th 4 I · · Ii it * I 4 ti tt v * fil i έέ i i 4 ι * i * * * if ··,; · PATENTANWÄLTE F, W, HEMMERlCH '·· ÖeKb'MOLtEJi' .H GROSSs! - *!;, PÖLLMglEft October 1982 - 21 - IS 325 pr.kö * Charging device according to one of claims 1 to 3 / marked by a square path of movement (B) of the transport quantities (16), wherein said vertical track sections to the vertical distance of the engravings in the dies (19, 20) meet and break points in the motion sequence (Rühestellungen the transporting tongs) in the center of the hori- · right path portions Are provided. 5. Charging device according to claim 4, characterized in that that the transport tongs sit on the walking beam (30), the form the coupling of two parallel links designed as crank mechanisms (24 to 29), one in a Main crank (24) stored auxiliary crank (25) via the gear drive (26, 27) a four times the number of revolutions opposite the main crank (24) and the radius of the auxiliary crank (28, 29) is about half the arch height of a four-circle segment in the main crank circle. 6. Charging device according to one of the preceding claims, characterized, that the motion drives of the transport tongs (16) and the transfer tongs (17) via a between the speed-controllable Drive (5) and the motion drives switched on indexing gear (6) takes place. 7. charging device according to claim 6, characterized, that as a step gear (6) a through the connection of a wheel crank drive (35 to 41) with a crank PATENTANWÄLTE F, W, HEMMERItHt "ÖERD Mßl * L ^, 'D.'GFfO & e ■ F, PÖLLMElER October 20, 1982 - 22 - 15 325 pr \ kö loop (42) formed cycloid gear is provided, one in the main barrel (35) of the SaderkUrbeltriebes embedded auxiliary crank (39) via the gear train (3 8, 40) twice the number of revolutions compared to the Main crank (35) executes, the radius of the auxiliary crank (39) is a third of the radius of the main crank (35) and the auxiliary crank (39) is coaxial with the main crank (35) mounted loop lever (42) engages. '1Ö 8. charging device according to one of the preceding claims, characterized by that the upper (16o) and lower (16u) transport tongs sit on the upper and lower carriages (60, 61), the upper slide (60) opposite to the lower slide (61) perpendicular to the normal plane on the lifting beam (30) movable and through opposing strands of rope or chain drives or opposing rack and pinion gears are driven, and that each cable, chain or pincer drive via a circular sector rocker (47) by one Crank drive (45) is driven with adjustable stroke and adjustable (') reversal points. 9. Charging device according to one of claims 6, 7 or 8, characterized in that that the indexing gear (6) has a gear branching (7, 9) with branches in the gear ratio 1: 1 to the Walking beam drives (23 to 29) for the main movement of the transport tongs (16) to the carriage drives (45 to 56) for the transverse movement of the upper (16o) and lower (16u) transport tongs and the rotary drives (62 to 70) for the transfer tongs (17) is arranged downstream. PATENT AGENCIES F, W. HEMMERf (JH '! GERD MCHlUEBi ·. ^ GftöSSB »F, POLLMEIER 20 * October 1982 - 23 - 15 323 pr.kö 10 * charging device according to any one of claims 3 to 9, characterized / that the eye swivel levers (70/71) of the Öberabezänge (V /) form couplings (70) of double-swing articulated quadrilaterals / when the clamps (17) are arranged on KbppelverlängerUngen (71) and design of the Ahtriebsschwingen (65) as an angle lever, the second leg (64) in turn swing from Kurbächwihgen articulated quadrilaterals with driven ones ¹ I cranks (62) form. υ ⁱ⁰