DE3201489A1 - Tangential rolling head - Google Patents

Abstract

A description is given of a tangential rolling head with two thread rolls (3, 4), mounted in fork-shaped rolling-head arms (1, 2), for the cold rolling of threads on workpieces (9), the two rolling-head arms (1, 2) being of integral construction with the rolling-head holder (13) and forming U-shaped limbs which are separated from one another by an interspace (7, 8). The width of the interspace (7, 8) and hence of the gap between the two rolling-head arms (1, 2) can be adjusted in the region of the elastic deformation of the limbs by means of a screw (5) which connects the two rolling-head arms (1, 2) to one another. <IMAGE>

Description

DiPL, ng RALF MINETTI · -. ζ-ΓνΠ ^^ Γ

_rr --- 2HAMByRGh den ZA ·. Deafitoer 138-1

ATtNTANW AI Γ. '"'» J « I * * i

Bailindanrp. . ¹ 5 ΙΟ / 4Ζ

-if-

(VNR) I 106 127 · »" Τ ™ Telephone 3351 15

Bank Conimerzbank AG account number 38/5? 55Ί (Sort code 200 400 00)

A) Cte t 6020/8 1 2509 Hamburg postal check 00-207

(Sort code 200 100 201

Anra.j Company Wilhelm Fette GmbH

TangentlalrolHcopf

The invention relates to a tangential rolling head with two fork-shaped rolling heads stored thread rolls for cold rolling threads on workpieces 5

Conventional tangential rolling heads of this type are usually constructed in such a way that the two rolling head arms, each with a thread » Carrying a role, with a joint on the roller head holder are stored · This way are

the two rolling head arms pivotable about the joint, so that an adjustment of the distance of thread rolling is possible in order to adapt to the respective thread diameter of the To be able to make workpieces. To this

The purpose is then usually several adjusting screws as well as locking screws are provided which engage the ends of the roller cup arms and fix them in their desired position

BATH ORIGINAL

In this way, workpieces with different thread diameters can then be produced
in a workspace between minimal
and the maximum workpiece diameter, with this working area being the
Swivel range of the rolling head arms specified
is. It appears clear that a tangential rolling head with such a structure requires a complex construction, dia
is conditioned by the fact that one or more
Joints for the rolling head arms as well as means

for adjusting and fixing the rolling head arms

required are. It turns out that there- I due to the rigidity and stability of such a Tangentiilroll- ί

head are not optimal, especially if

high numbers of items of the same type are to be produced.

The task of the invention is therefore to provide a tangential rolling head of the type mentioned at the beginning, which has a simplified upward _; construction and has improved rigidity and is therefore particularly suitable for listening to large numbers.

According to the invention it is therefore provided

that omission of a joint arrangement BAD ORIGINAL

both rolling head arms integral with hers

Rolling head holder inform of the above

* '■■ "320H89 -6.

Legs are formed which are separated from one another by a gap and at their »front end one free each bear rotatably mounted thread rollers, and that the width of the gap is adjustable is. For this purpose, the two rolling head arms are connected by means of a screw, with which is the distance between them and dimit the width of the space in the area the elastic deformation of the legs is adjustable.

In this way, the manufacturing effort in the tangential rolling head according to the invention can be reduced significantly reduce and at the same time increase the stability and rigidity, what is reflected in an advantageous manner in a cheaper production and too a device that is robust and easy to use

The screw for connecting the two rolling head arms ensures an adjustment the thread roll distance in the area of possible elastic deformation and secures the tangential rolling head on the same side against unwanted bending of its rolling head arms forming thighs. The working range of such a tangential rolling head is that is, the possibility of it

BATH ORIGINAL

Delivery is relatively small, so that only the necessary "spring-back is considered during thread rolling, which results as inevitable] a result of the forces occurring processing the thread rolling in a radial RICH \ · This is JE yet taken 'consciously accepted to the stability and Improve the rigidity of the tangential roller top and at the same time reduce the risk of failure. If the working area of such a tantial rolling head is designed for a specific thread, such an arrangement is particularly suitable for the production of large numbers of corresponding workpieces

old with the same diameter 15

Usj a defined infeed of the tangential rollJcopfes in the elastic Verforroungeber © i the thigh to ensure wi: d the

i Screw the right angle with a «Feinge- J winch and / or markings on defined ' Change their delivery.

The rolling head holder itself chin according to the invention U-fÖrmlg be formed, whereas] head arms of the intermediate space between the two rolling \ elongated in cross-section, U-shaped or can besitsen circular shape, un \ ensure the desired elasticity of the Ro11kopfarroe au, dia turn the Include space in a fork-like manner. BATH ORIGINAL

- - - ff - ■ ■ " ~ O L O f

Daiait at the beginning of a thread oi Ivor ganges it is guaranteed that the thread rolls assume a defined starting position, is geeäö the invention further provides that the thread rolls carried by the rolling head arms are synchronized in their run «In one embodiment, the thread rolls are connected to one another via a non-driven endless belt, with only the is driven with the thread rolls to be machined workpiece. For this purpose can the endless belt can be designed as a chain, 2ahnrieaen or V-belt, and over firmly RXder connected to the thread rolls and loose deflection wheels run unloaded. In Further training of such an arrangement can be a web without impairment the elastic deformability in the 'space between the rolling head arms protrude and hold at least one deflection wheel for the endless belt

According to another embodiment of the invention the thread rolls can each be provided with unbalanced masses, which ensure that the thread rolls independently of one another their predefined defined starting positions ebnehaen

The invention is illustrated below with reference to

BATH ORIGINAL

'; ::. "" _ ^ _ _; 320H89

Description of exemplary embodiments and with reference to the accompanying drawing in more detail · The drawing aaigt i

Figure Ii a first embodiment of the

Tangential rolling heads3 in the side view and in

FIG. 2: a two-fold embodiment of the tangential rolling head in the side

looks at.

The reproduced in Figures 1 and 2 TangentlalroZlkopf has two rolling head arms l and 2, which on their fork-shaped Kopi side in a known manner each «iij threaded roll 3 bssv /. 4 wear. With these non-powereda Q «roll 3 and 4 is then replaced by cold-j deformation of a thread into a rotary gear 1 next workpiece rolled up. j

The two Rollkopfarrae 1 and 2 3ind here f

1 made in one piece with its rolling head holder 13 *

formed and by a recess b * w. I separated from one another by an interspace, \ BAD ORIGINAL _{which is denoted by the} reference numerals 7 and Q and in FIG. 2 by the reference number 6. This Zv / ischanraum between the Rollkopfanasn 1 and 2 can, like Λη

OZU

Figures 1 and 2, be elongated, U-shaped, circular or fork-shaped and is of a ü-föraigen or fork-shaped Rolling head holder baw. his two thighs 1 and 2 surrounded.

As can be seen from Figure 1, the two are Rolling head arms 1 and 2 connected by means of a screw 5, which makes it possible to adjust the distance between the two rolling head names 1 and 2 and thus to adjust the width of the space 6 or 7 and 8 in the area of elastic deformation of the legs forming the rolling head arms 1 and 2

15th

The screw 5 is expediently with provided with a fine thread and can mark not shown in the area of their Have head that has a defined Xnde enable their delivery if the Setting of this screw 5 is changed At the same time, this screw 5 acts a unwanted springing up of the rolling head arms 1 and 2 forming legs of the Rollkopfhal against 13.

The screw 5 thus takes into account the BATH ORIGINAL

permanent possibility of delivery at the Resilience when thread rolling, which as inevitable consequence of thread rolling

320H83 "~

BATH ORIGINAL

forces occurring in the radial direction
given is. Of course is also
such a screw is provided in the arrangement according to FIG
to simplify the representation in FÄgur
2 is also omitted, as is that in FIG
1 achematically indicated workpiece «

So that the rolling head arms 1 and 2
worn thread rolls 3 and 4 one exactly
Assume a given starting position, 3 are synchronized in their course, for what it
there are several constructive options.

In the. \ Execution continuation according to Figure 1 and
2 one recognizes a schematically indicated one

Endless belt 14 which is not driven

and connects the two thread rolls 3 and 4 to one another. For this purpose sit up
. the axes 1O and 11 of the thread rolls 3 and 4 firmly rait these connected wheels 15 or

16, over which the endless belt 14 runs. Us) ■ the working area between the two areas!

winding rolls 3 and 4 for workpiece 9]

do not affect au, is the endless belt! 14 guided around deflection wheels 17 and 18, i

the 3 turn loosely. '<

In the Ausführungsfortn according to Figure 1 is seated the aine steering wheel 17 on a web 19, the

■ i-Αϊ -'- ·

into the recess «wipe the two rolling heads arsen 1 and 2 protrudes and separates the recesses 7 and 8 from one another without however, the elastic deformation of the two S legs * u affect · Two more Ualenkräder 18 are here la rear Area of the rolling head holder 13 provided

In the embodiment according to FIG

there are only two Utelenk wheels 17 and 13 indicated in the area of the space 6, which are circumnavigated by the endless belt 14 at the back, with these tTalenkr & der 17 and 13 in are appropriately supported "

15th

For the endless belt 14 kosfloen different Embodiments in question, for example, can be a chain, a toothed belt or a V-belt while

the pulleys 17 and 18 or those with the Thread rolls 3 and 4 connected to wheels 15 and 16 a coatalean Torah of theirs Own surface · As already mentioned, neither wheels 15 and 16 nor the

Deflection wheels 17 and 18 are driven, rather only a drive of the workpiece BAD ORIGINAL _{ke8 9> dafl daa Sndloab} and 14 only

runs along and only the defined position of the thread rolls 3 and 4 to each other secures.

"3 20U89

In another Ausführungsfortn not shown in the drawing, the the same purpose is achieved in that the thread rolls each have an unbalanced mass are provided that ensure that the

Thread rolls their own independently

& predefined defined starting positions

take in.

Iia operation of the above

Tangential rolling head is thus a delivery in the specified embodiments the rolling head acres 1 and 2 «with the screw 5 in the area of elastic deformation an amount is possible that corresponds to the springback occurring with thread rolls This resilience takes place through the high radial forces occurring on the thread rolls 3 and 4 and can be through a Readjustment of the vision hood 5 for the next work step on the next workpiece 9 prevent · Even if a springback should occur afterwards * this is Insofar no longer harmful or disruptive, because it is so small that the desired

Thread is still completely produced « BATH ORIGINAL This screw 5 thus allows at the beginning

setting a core diameter for the thread to be produced. Will then be stuck-

/ 1U

made that the threads produced do not have the desired kerosene diameter present and thus the thread has not been completely rolled out, becomes iron Delivery by means of the visual cover 5 voigenoa-Men, u »the amount of the spring suspension balance c n.

For this purpose: The purpose of the visual hood S is: - Equipped with a peep thread, i.e. a thread very small ¹ pitch or adjustment of the screw 5 allow.

In addition, backups, not shown, may be provided door the screw 5 in the drawing, including this lock au in a selected Zustelluagsposltion and au against unwanted twisting sichezn "

Without departing from the above-described principle, la needs cases can instead of a screw 5 each have a screw for the rolling head arm Jeueiligen 1 and 2 may be provided, inter alia, the delivery and oneness vorsuaehaen independently of each other, whereby

BATH ORIGINAL

32Ö1489 ^; : Λ5-

However, the design effort increased.

COPY

1, 2 ~ ΛΌ ~ . Rolling head arrows

3, 4 ■ thread rolls

S screw

6, 7, 8 - spaces

9 «WerkatücJc

10, 11 axes

13 · RoIi head holder

14 ■

15, 16 -

17, 18 * Ualenfcräder

19 · St * g

BATH

Claims (1)

IO 15th 20th Claim " / l.JTangential rolling head with two in fork-shaped Rolling head arms mounted thread rolls for a cold rolling of threads on workpieces, characterized in that both RollSopfarrae (1, 2) in one piece with its rolling head holder (13) are formed in the form of protruding legs, such as by a gap (6, 7, 8) are separated from each other and each one free at their front ends bear rotatably mounted thread roll (3, 4), and that the width of the gap (6, 7, 8) is adjustable. 2 · Tangential _{rolling head according to claim 1,} characterized in that the two rolling head arms (1, 2) are connected by means of a screw (5) with which the distance between them and the width of the gap (6, 7, 3) in The range of elastic deformation of the legs is adjustable. BATH ORIGINAL _ ■ _ "· ._ ■ 3. Tangential rolling head according to claim 2, characterized marked that the screw (5) with a «Peing thread and / or markings for defined change in their delivery is provided. 4. Tangential roller head according to one of the claims 1 to 3, characterized in that the rolling head holder (13) is U-shaped iat and the space (6, 7, 8) between the two Rollkopfarraen (1, 2) in cross section elongated, U-shaped or circular Has shape. 5. Tmgentialrollkopf according to one of the claims 1 to 1, characterized in that the carried by the RoI! head a risen (I, 2) Thread rolls (3, 4) are synchronized in their run. 6. Tangenti-ilrollkopf according to claim 5, characterized characterized in that the thread rolls (-3, 4) via a non-driven endless belt (14) are connected to each other 7. Tangential rolling head according to claim 6, characterized characterized, di3 dss endless belt (14) as Chain, toothed belt or V-belt is formed, dis üei firmly with the thread rollers (3, 4) connected wheels (15, 16) so »'ie BATH ORIGINAL _._ -. -3 20-U-89 "--- ι - 3 '- -3- loose deflection wheels (17, 18) unloaded with-! runs. 8. Tangential rolling head according to claim 7, characterized in that the rolling head holder (13i • has inen web (19) which in the space (6, 7, 3) between the rolling head j arms (1, 2) protrudes and at least one Um «steering wheel (17) for the endless belt (14) hai-. tert. 9, tangential rolling head according to claim 5, characterized in that the thread rolls (3 ₍ \ each »with unbalanced masses are provided, 1 which they independently in pre-set Turn flat starting positions. BATH ORIGINAL