DE2258647A1 - PRESS WITH TWO FOR THE ONE OR. OTHER OF TWO PARALLEL ROTARY AXES SYNCHRONOUSLY ROTATING TOOL CARRIERS - Google Patents

Description

Hilgeland brothers

Press with two around one or the other of two parallel axes of rotation synchronously rotating tool carriers

State of the art

A press with rotating tool carriers is z. As described in U.S. Patent 3,359-1,774. Such presses allow Especially when training as a ball press, the production of workpieces with a much higher piece output, than they are on presses with a reciprocating press slide can be achieved.

The well-known press with rotating tool carriers has but initially the disadvantage of a very complex construction with a total of 3 rotating tool carriers, namely one for the removal or feed movement for the blanks and two further tool carriers with tools for the pressing process. Another disadvantage of the known press is that it requires a considerable amount of construction Effort must be made to achieve sufficient axiality of the tools during the pressing process or the feed movement for the blanks. After all, it is also because of the not inconsiderable centrifugal forces that occur unfavorable hold of the blanks on the periphery of the rotating tool carrier is disadvantageous.

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task

The invention is based on the object of reducing the technical complexity for a press with rotating tool carriers to reduce with structurally simpler and better solution for producing the axiality of the tools during of pressing. This object is achieved by the invention specified in claim 1. Due to the construction the press according to the invention, the occurrence of centrifugal forces has a favorable effect on the hold of the blanks.

advantages

The arrangement of the approximately radially movably guided tools of the one tool carrier in the pockets of the other tool carrier ensures that the tools that correspond to one another are exactly axial, the outlay for this being relatively low. To achieve constant axiality of the tools, only two guides for the tools of the one inner tool carrier are necessary, which enable these tools to be displaced in a straight line in directions approximately perpendicular to one another.

As a result of the relocation of one tool carrier into the other tool carrier, the structure of the Press according to the invention very little Raunu angular shifts of the tools of one tool holder compared to the tools of the other tool holder are in excluded from the press according to the invention »

Advantageous further developments of the invention are described in the subclaims.

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The embodiment of the invention according to claim 2 results in a structurally simple and effective characteristic the structure of the press well adapted solution for the task of ejecting finished pressed workpieces from the Tools of the outer tool carrier.

Claim 3 shows a way of controlling those located in the tools of the inner tool carrier Ejector pins, while in claim 4 a concrete, simple feasible solution for this is given.

The solution described in claim 5 for removing wire sections from a stationary magazine and for Bringing these wire sections to the tools of the outer tool carrier is simple and reliable and adapted to the nature of the press according to the invention.

The design of a shearing knife provided for shearing off the wire sections as a magazine according to the claim 6 results in a structurally simple and effectively satisfactory solution for one to be removed Magazine holding wire sections »

The solution described in claim 7 for the control the feed lever has the advantage that as a result of the feed movement of the feed device caused by the spring there is no risk of destruction in the event of a possible tool escape. On the other hand, it will be the correct return time the feeder ensured by inevitably retrieving the feeder with the help of a .Control curve.

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While the solutions given in the preceding claims also apply to single-pressure presses, shows Claim 8 a way in which the double printing process can be implemented with the press according to the invention. claim 9 describes a preferred solution for controlling the tools when performing the double pressure process.

According to claim 10, the control means arranged on the machine frame at a predetermined point are for controlling the Tools are resiliently mounted in one or the other position in the double pressure process, so that the impact or approaching the control means located on the tool carrier to this control means with as little wear as possible and low noise.

Although it is possible, for example, to provide an even number of tools in or on each tool carrier and to control the various devices mentioned or described in the claims in such a way that the Double printing process can be carried out, is for the purpose of a uniform operation of the press - more consistent zetilicher spacing of successive pressing processes - and to achieve high piece rates with as much as possible low wear of all elements when using the double printing process, a solution that meets the requirements 11 beneficial

With the aid of FIGS. 1 to 13, the invention is explained in more detail below using an exemplary embodiment.

Show it

1 shows a press according to the invention set up for carrying out the double printing process in the plan view in section according to the section line B-B in Fig »2;

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FIG. 2 shows the press according to FIG. 1 in a side view in section according to the section line A-A in Figure 1;

Figure 3 _o control means for controlling the movable tools in one or the other end position in the front view;

4 shows the tools which can be moved in two end positions together with a locking device in plan view;

5 shows a feeder device for the wire sections in the front view and at the time the removal of a wire section from a magazine;

FIG. 6 shows the feed device according to FIG. 5 in a position during the feed movement; FIG.

Fig. 7 shows the feeder device according to FIG Time of a completed feeder movement;

8 shows the feeder device according to FIG. 6 in a top view and partially in section;

9 shows the press in side view with details of the drive;

FIG. 10 shows the feeder device according to FIG. 5 up to 8 on a larger scale and with more Details in the front view;

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FIG _o 11, the feeder device according to Fig 10 in plan view.

FIG. 12 shows details of the press according to FIG. 1 in a side view in section and in larger scale and

FIG. 13 shows an ejection device preferably used on the press according to FIG. 1.

Tool carriers are preferably rotatably mounted in a horizontal plane in the machine body 1 of the press 2 and 3. The tool carrier 2 is supported laterally via sockets 4 and 5 and via a circular ledge 6 from the bottom of the machine body 1. The axis of rotation of the running perpendicular to the plane of the drawing of FIG Tool carrier 2 goes through the point marked 7. The tool carrier 3 is on a machine body 1 attached core bolt 8 rotatably mounted. The axis of rotation of the running parallel to the axis of rotation of the tool carrier 2 Tool carrier 3 goes through the point labeled 9. A gear 10 is attached to the circumference of the tool carrier 2, which is in drive connection with a pinion 11 fastened to a stationary motor 12 (FIG. 2, FIG. 9).

In the tool carrier 2 there are pockets 13, the opposite sides of which run parallel to one another and the in the direction of the periphery of the tool carrier 2 through tools 14 immovably mounted in the pockets are. The pockets 13 run approximately in the radial direction, the angular spacing of successive pockets being constant.

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In the pockets 13 support plates 15 are guided longitudinally (radially) on which tools 16 can be transversely displaced (tangentially) are supported. The carrier plates 15 are on the tool carrier 3 on guide surfaces 17 provided for this purpose also mounted transversely (tangentially). The terms "radial" and "tangential" used above relate to the axis of rotation of the tool carrier 2.

On the tool carrier 2, a feeder device for wire sections is provided for each tool 14, which consists essentially of a feeder lever 18 which is rotatably mounted on a feeder bearing 19 attached to the tool carrier 2 about an axis 20 «.

In the 3ewegungsbereich the feeder lever 18 is located to hold the wire sections to be removed Magazine 21, which is explained in more detail below,

_{To control the ejector pins 22 provided in the tools 14, a five-} armed ejector 23 rotating about an axis of rotation parallel to the axes of rotation of the tool carriers 2 and 3 is provided. The ejector 23 has arms 24 which, during operation, move one after the other into the range of motion of the ejector pins within a preset in the machine body 1.

s
see circular recess 25 reach.

Fig. 2 shows the press according to FIG. 1 in the side flange Cut and on a larger scale. The tool carrier 3 rotatably mounted about the core bolt 8 is supported in relation to FIG forces running horizontally or in the pressing direction via a bushing 26 on the stationary in the machine body 1 Core bolt 8 off. In the vertical direction, the work

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tool carrier 3 on one attached to the machine body 1 Strip 2 7 or on the machine cover 28. With reference to the illustration in FIG. 2, those located on the tool carrier 3 are Guide surfaces 17 closed at the top by guide strips 29. The guide strips 29 have one extension 30 each, which like at the lower end of the guide surfaces 17 extension 31 the carrier plates 15 engages behind for the tools 16 at the upper or lower end. This is how the carrier plates are 15. With reference to the representation in FIG. 2, mounted on the tool carrier 3 so as to be displaceable perpendicular to the plane of the drawing. The tools 16 are fastened to a tool holding plate 34 by means of screw bolts 32 and 33. The tool holding plate 34 is supported in the horizontal direction and, in relation to the illustration in FIG. 2, parallel to the plane of the drawing - So in the direction of the core bolt 8 - on the carrier plate 15 from. Perpendicular to the plane of the drawing in relation to the Representation in Fig. 2, the tool holding plate 34 is slidably mounted on the carrier plate 15 on the latter.

In the lower part of the tool holding plate 34 there is a gate 36 in which a sliding block 37 is guided (see also Fig. 3). The sliding block 37 is rotatably mounted on a stub axle 38 which is located on the swivel lever 39 of a pivot device 40 is located. The pivoting device 40 also consists of one on the tool carrier 3 mounted bearing 41, in which a swivel wheel connected non-rotatably to the swivel lever 39 via an axle 42 43 is rotatably mounted. The swivel wheels 43 assigned to the tools 16 arrive during operation the press one after the other in the area of a gate 44 mounted on the machine body 1. The upper part 45 of the gate 44 is opposite the lower part 46 in the direction of movement

BATH ORIGINAL

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Tools 16 or the axis 42 of the swivel wheel 43 resiliently mounted - in the present case one The press set up to carry out the double pressure process is for the tools stored on the tool carrier 3 16 two tools that are used alternately, ZoBo punches 47 and 48, are provided.

For locking the tools 16 in the two end positions a spring-loaded locking wedge 49 mounted in the carrier plate 15 is provided, the wedge surfaces of which alternate with one or the other of the two inclined surfaces 50 and 50 provided on the tool holding plate 34 get in touch.

A control cam 52 can also be mounted on the tool carrier 3, which with the aid of the when rotating the Tools occurring relative movement between carrier plate 15 and tool carrier 3 a control of an im Stamp 47 or 48 provided ejector pin causes.

Further details of the feeder device are shown in FIGS. 5 to 8 and 10 and 11. The ones at feeder camps Feeder levers 18 rotatably mounted about axes 20 have an exchangeable fitting piece 53 to adapt the feed device to the respective shape of the blanks or the diameter of the wire sections. The adapter 53 has at the end facing away from the axis 20 a finger-like extension 54, which with an adjacent part of the fitting piece 53 forms a fork-like recess, Zdie in the case of the present embodiment of the invention is adapted in width to the diameter of the wire sections to be removed and to be brought in front of the tools. on

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of the finger-like extension 54 opposite side of the recess indicated at 55 is a spring-loaded, transversely displaceably mounted to the removal direction of the wire sections in the fitting 53 the clamping bolts 56 of which one, rounded or _o tapered end in the area of the recess 55 is sufficient and the other end at the effect of a compression spring 57 attached to the fitting 53 is available.

Along with the axis 20 of the feeder device, in addition to the feeder lever 18, is a control lever 58 with a control roller 59 non-rotatably connected. The end of the feed lever 18 facing away from the fitting 53 lies at an axially displaceable in the Tool carrier ^^ angeordeYiten socket 60 to which under the Effect of a compression spring 61 is available. - The control roller rotatably mounted about an axis 62 attached to the control lever 58 59 rolls on a control cam 63 fastened to the machine cover 28 (see FIGS. 2 and 12).

A locking bar 64 is attached to the tool holding plate 34, which is in one of the two end positions of the The tool holding plate 34 is controlled under the control lever 58 in such a way that a movement of the feed lever 18 in the direction of the associated tool 14 is prevented.

In the area of movement of the feeder lever 18, there is a magazine 21 on the machine body 1 for the items to be removed Wire sections. The magazine 21 is formed by the shearing knife 66 in connection with a shearing device 67 with a resiliently resiliently mounted in the area of the shear die in the removal direction of the wire sections, from which

• and in the direction of the cutter

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Movement range of the counter-holder 68, which can be swiveled out of the magazine. The storage location of the counter-holder 68 is not shown and, in relation to the representations in FIGS which is mounted in the machine body 1 so that it can be moved up and down in a straight line and is in drive connection with a drive device, not shown, preferably designed as a double cam drive has moved into the removal position for a certain period of time in the lower position in relation to the representation in the drawing 65 off in the shear knife 66 be. Indigenous recess 71 _β The recess 71 is formed by one of the shear edge 72 opposite finger-like. Appendix 73 limited

The drive device for the shearing knife 66 is also of this type for the present case of the double-pressure method designed so that the shear blade only moves past the shear blade on every second of the successive ones and in odd number of existing tools is brought into the mentioned, lower position.

In the area of the shearing device 67, a wire stop 74 is also mounted on the machine body 1, which essentially from a wire stop axis 75 with axially on this

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adjustably mounted wire stop lever 76 consists.

Furthermore, a not shown, known wire pulling device is provided that the wire for the Wire sections to be sheared off in the cycle of removal by the feeder devices through the shearing die 69 leads against the wire stop lever 76.

The illustration in FIG. 13 shows the ejector 23 fastened on a rotating shaft 77 with arms 24 in one Point in time at which one of the arms 24 drives an ejector pin 22 located in a tool 14 in the ejection direction,

The tools already set outside the press are preferably made with the help of a special device inserted into the press. In addition, however, an individual adjustment is also possible for the wide eyes already installed in the press of the tools provided. However, since these details do not fall within the scope of the invention, they will not described in detail here · - A subsequent adjustment of the tools already in the press can be made through the opening in the machine cover 28. In the machine body 1 is also a bore 79 is provided which lies in the plane of the ejector pins 22 and through which an adjustment of the Shaft lengths for bolts to be pressed or the like. Can be made.

The mode of operation of the press according to the invention is explained below using the example of the in the drawing in Fig. in the pressed position, - namely on the opposite of point 7 Side of the point 9 -, located tool pair 14, 16 explained.

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As a result of the predetermined distance between the axes of rotation of the tool carriers 2 and 3, the tools 14 and 16 are in closest to each other to the position referred to above as the pressing position. In the following it is assumed that with the mentioned pair of tools 14, 16 just the process of the final pressing in the designed as a double pressure press' Press is carried out. The final pressing accordingly takes place with the punch 48 of the tool 16.

Due to the continuous rotation of the tool. Carriers 2 and 3 enter after the finished pressing has taken place Longitudinal displacement of the tool 16 in the pocket 13 with respect to the tool 14 which is fixedly arranged in the pocket 13 in such a way that the tool 16 moves away from the tool 14. It also occurs as a result of the differently chosen Axes of rotation of the tool carriers 2 and 3 a transverse displacement of the carrier plate 15 for the tool 16 opposite the guide surface of the tool carrier 3 assigned to this carrier plate in a leading sense. The expression "Leading" here refers to the direction of rotation of the tool carriers.

After a covered angle of rotation of about 90, the connecting link mounted on the machine body 1.44 connects with the pivot device located on the carrier plate 15 40 the reversal of the tool 16 or the punches 47 and 48 in the opposite direction to the process of final pressing End position. A punch 48 possibly located in the process of final pressing The ejector pin is due to the relative movement described above or transverse displacement of the .Trägerplatte 15 opposite the guide surface 17 of the tool carrier 3 with the help of a

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controlled in the support plate 15 resiliently mounted ejector pin, whose end facing away from the punches 47, 48 on the control cam 52 fixed in the guide surface 17 slides.

With the aid of the control cam 63 fastened under the machine cover 28, the tool carrier is 2 and 3 of the feeder lever 18 for the wire sections is controlled in the removal position. Furthermore, with the help / des

66 L

Shear knife 8er shearing device 67 a section of predetermined The length of a wire previously drawn in against the wire stop lever 76 is sheared off. The shearing of the wire section 65 and the subsequent downward movement of the shear beam 70 with the shear knife 66 is controlled in such a way that that the feeder lever of the tool pair preceding the tool pair 14, 16 in question, despite the control in the removal position can move under the wire section or the shearing device without hindrance.

The tools are in the area of the magazine 21, which is formed by the shearing knife 66 in connection with the counter holder 68 14 and 16 furthest away from each other. The one in the The removal position controlled feeder lever 18 removes a wire section 65 from the recess located in the cutting knife 66 71, while the cutter 66 is in the lower end position - the position close to the feeder devices. When a wire section 65 is removed, it slides between the feeder lever as a result of the relative movement and shear knife 66 in the recess 55 located in the fitting 53 of the feed lever 18. The wire section 65 in the direction of the opening of the recess 71 located in the cutter 66 is transported out of this against the

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holder 68 counterforce exerted on the wire section 65 The counter holder 68 is used to secure the wire section

65 against falling out of the recess 71 of the cutting blade

66 and is both in the direction of movement of the cutter '66 during the shearing process and across it in the direction of movement the or the feeder lever 18 resiliently mounted,

in order to allow the counter-holder 68 to evade when the wire section 65 is removed.

Corresponding to the course of those located on the machine cover 28 With further rotation of the tool carriers 2 and 3, the control cam 63 becomes the feed lever 18 under the effect the compression spring 61 with the removed wire section 65 is moved in front of the tool 14. As a result of the further rotation of the tool carriers 2 and 3 resulting approach of the tool 16 or the punches 47 and 48 to the tool 14 the wire section 65 is pushed by the punch 47 into the tool 14 =. The feeder lever 18 is with it the control lever 58 and the control roller 59 with the help of the cam 63 in a middle, the following process of " Prepressing brought non-hindering position and held there.

In the area of a covered angle of rotation of the tool carriers 2 and 3 of approximately "360 °, that located in the tool 14 becomes Blank or wire section 65 by means of the Stamp 47 of the tool 16 is pre-pressed. With further rotation of the tool carriers 2 and 3, the move away Tools 16 or the punches 47 and 48 again from the tool 14, with one possibly provided in the punch 47 Ejector pin in the same way as before for punch 48

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is operated. - After another angle of rotation of about 90 has been covered, the stamps 47 and 48, in turn, reversed into the first-mentioned position intended for the final pressing process. With This reversal of the rams 47 and 48 is at the same time the control bar 64 under the control lever 58 of the feeder device moved so that the feeder lever 18 to the following reversal of the punch 47 and 48 against a Downward movement (feed movement) remains blocked. The Ste \ B: lever 58 is on the locking strip 64 under the Effect of the compression spring 61 on

After further rotation of the tool carriers 2 and 3, the feeder device arrives at the one in question Tool pair 14, 16 again in the area of the shearing device 67. As before with regard to the previous one Tool pair mentioned, the feeder lever 18 moves under the Shearing device 67 unimpeded, since this is controlled in such a way is that at this point in time the cutting blade 66 is in the upper end position, while at the same time wire is drawn in against the wire stop lever 76.

With further rotation of the tool carriers 2 and 3, the

Effect of the in the area of the control lever 58 of the feeder locking bar
Hebeis 18 brought S-be «ei>l-ei-s4> e 64, that is, the control lever 58 lies under the action of the compression spring

Sperrlei, ste

to the s t-.ρτ ι er I e J ... sue, 64 attached to the tool 16. This prevents the feed lever 18 from moving into the BejSLCh of the tool 14 in which a pre-pressed blank is located.

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After another complete revolution of the tool carriers 2 and 3, the tools 14 and are located again in the pressing position, this time the punch facing the tool 14 for the purpose of final pressing of the blank or wire section

The ejector pin 22 provided in the tool 14 becomes after a further rotation of the tool carrier 2 and by about 120 ° from an arm 24 of a correspondingly set, rotating, multi-armed ejector 23 actuated, so that the finished pressed workpiece from the tool is pressed.

The above-mentioned processes are repeated for all tool pairs 14 and 14 provided in an uneven number in the same way, the processes taking place at a specific point in time on adjacent tool pairs 14, 16 except for the longitudinal displacement of the tools 16 in the Pockets 13 are different according to a complete revolution of the tool carrier.

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Claims (10)

Gebr. Hilgeland patent claims 1. Press with two tool carriers rotating synchronously around one or the other of two parallel axes of rotation with the same number of tools having the same angular distance from one another, which have a further degree of freedom in the plane of the tools and of which the tools of one tool carrier follow one another the respectively assigned tool of the other tool carrier are brought into the pressing position once during each rotation of the tool carrier, and with each tool of the one tool carrier separately assigned feed device for the blanks, characterized in that the tools (16) of one (3) of two rotating in the same direction Tool carriers (2, 3) are mounted transversely to the pressing direction and in the plane of the tools in a straight line on the circumference of the tool carrier (3) and in the pressing direction in the other tool carrier (2) arranged in the other tool carrier (2), open to the axis of rotation and from the immovably mounted tools ( 1 4) of the other tool carrier (2) closed pockets (13) are guided, the length of which is dimensioned such that the tools (16) of one tool carrier (3) can be displaced at least by a distance corresponding to twice the distance between the axes of rotation of the tool carriers and that on the other tool carrier (2) in the area of each _ 19 - 409825/0441 Tool (14) one of several controlled depending on the angle of rotation of the tool carrier feeder devices is provided, in whose range of motion there is a stationary magazine (21) for the blanks from which these can be individually removed from the feeder devices. 2. Press according to claim 1, characterized in that
the tools (14) located in the other tool carrier (2) have ejector pins (22) whose the
Tools facing away from the area of action
a multi-armed ejector (23) rotating synchronously with the tool carrier (2) with an axis of rotation parallel to the axis of rotation of the tool carrier, the rotational speed of the ejector being dimensioned in relation to the rotational speed of the tool carrier such that each arm (24) of the answerer during every or every second rotation of the tool carrier with an ejector facing the arm in question · = »
pin (22) in "drive connection comes" 3. Press according to claim 1, characterized in that,
the tools (16) of one tool carrier (3) have ejector pins (80) which, due to the relative movements between tools (16) or their carrier plates (15) and tool carrier (3), come into drive connection with control means attached to the tool carrier. 4. Press according to claim 3, characterized in that Control cams (52) attached to the tool carrier (3) are provided as control means. - 20 - 409825/0441 5. Press according to claim 1, characterized in that the removal of wire sections CB) from the Magazine (21) set up feeder devices essentially from around the respective pressing direction There are parallel axes of rotation pivotable cam-controlled feed levers (18) which have a fork-like, by a fixed, finger-like extension (54) delimited recess (55) with the diameter the wire sections have adapted width, in the area of which a spring-loaded ^, transversely to the removal direction the wire sections displaceably mounted in the feed lever clamp bolt (56) is enough. 6. Press according to claim 1, characterized in that the magazine (21) for holding the wire sections ready (65) by a shearing knife (66) provided for shearing off the wire sections with in the removal direction of the Wire sections resiliently supported in the area of the shear die (69) out of the range of motion the pivotable counterholder (68) is formed from the wire sections to be removed from the magazine, the Shear knife is held stationary at the time a wire section is removed. 7. Press according to claim 5, characterized in that for controlling the feeder lever (18) one on the machine cover (28) attached control cam (63) is used, on which a control roller (59) runs under spring pressure, which in this way is mounted on the feeder lever so that it is controlled into the removal position against spring force 21 - 09825/0441 8. Press according to claim 1, characterized in that the tools for performing the double-pressure process (16) of a tool carrier (3) on the tool carrier transversely to the pressing direction and in the plane of the Tools linearly displaceably mounted, in the pockets (13) guided carrier plates (15) transversely to Pressing direction and are mounted linearly displaceable in the plane of the tools and each with control means (40) are drive-connected, which correspond to a control means (44) arranged on the machine body (1) at a predetermined point, that means are provided for locking the tools (16) in two predetermined end positions, and that the Feeder devices are controlled in such a way that the tool carriers (2, 3) are only a blank is removed or placed in front of the relevant tool (14). 9. Press according to claim 8, characterized in that the tools (16 or 47 and 48) each via sliding block (37) and link (36) with one on the "carrier plate (15), around a radial to the axis of rotation of the tool carrier (3) running axis of rotation rotatably mounted, gear-like swivel wheel (43) with swivel lever (39) drivingly connected which corresponds to a rack-like link (44) located on the machine body (1). 10. Press according to claim 8 and / or 9, characterized in that that the control means or gate (44) arranged at a predetermined point on the machine body (1) in the direction of rotation the tool carrier are resiliently mounted. - 22 - 409825/0441 Press according to claim 5, 6, 7 and 8, characterized in that an odd number of tools or pairs of tools (14, 16) is provided that furthermore the cutter (66) forming the magazine (21) is controlled in such a way that only to every second of the successive through the range of the shear blade moved feeder lever (18) a wire section (5) is kept ready, and that depending on the Position of the displaceable tools (16) of one tool carrier (3) relative to the tools (14) of the other tool carrier (2) locking devices (64) for the feeder lever are controlled in such a way that a feeder lever only during one such rotation of the tool carrier (2) in front of the associated tool (14) is moved, while from the magazine (21) a wire section (65) for the relevant Feeder lever is kept ready. 409825/0441