DE3105262A1 - TOOL FORMING, PRESSING OR PERFORMING OTHER WORKING OPERATIONS USING PRESSURE - Google Patents

Abstract

1. A tool comprising a support rail (14) and two tool jaws (10, 12) for engaging on a workpiece, said jaws being located with the support rail (14) in a common plane, the first tool jaw (10) being displaceable along the support rail (14) due to a guide opening (18) and securable in position on said support rail by canting to engage said rail with its opening's edges, whereas the second tool jaw (12) is movable alternatingly backwards and forward towards said first tool jaw (10) by means of an actuating device (50), characterized in that for successive working of workpieces in consecutive steps of operation at least one of the tool jaws (10, 12) is provided with a working element (84, 86) and self-acting adjusting means (94) engaging on the first tool jaw (10) are provided for displacing the first tool jaw (10) in the direction of the second tool jaw (12) during the backward motion of the latter.

Description

mm Μ w ^

■ ' 'ί 1 Π ζ 9 R

HOEGER, S-TELLREOLT & PARTNER

PATENTANWÄLTE UHLANDSTRASSS 14 c ■ D 7Ο00 STUTTGART 1

A 44 371 b Applicant: Bessey + Sohn GmbH & Co.

y - 192 Augsburger Strasse 7o8

December 8, 198o 7ooo Stuttgart 61

Description :

Tool for deforming, pressing or performing other operations under Application of pressure

The invention relates to a tool for processing workpieces, with two tool bodies arranged in a common plane, between which the workpiece to be machined can be introduced, of which at least one is movable relative to the other.

The present invention is based on the object of providing a tool that can be used for a large number of different Work operations, such as deforming, pressing, cutting or shearing or punching, can be used.

This object is achieved in that the one tool body can be displaced along a support rail and can be fixed by tilting and the other tool body can be moved back and forth alternately to the other tool body by means of an adjusting device and that at least one tool body is provided with a machining element.

With this tool, such work can be carried out successively by after each adjustment of the the adjusting device operable tool body in

A 44 371 b

y - 192

December 8, 198o

Direction of the other tool body of the adjusted tool body is again moved back by the same amount, so that the displaceable and tiltable arranged on the mounting rail Tool body adjusted by the amount of the return travel of the other tool body along the support rail can be. The workpiece held between the tool bodies is thus after each work movement of the one Tool body moved by an amount corresponding to the working movement in the direction of this tool body, so that when the adjusting device is actuated again, the tool body which is functionally connected to it when it moves in the direction of the tool body that is tilted again on the mounting rail able to do work on the workpiece again.

The infeed of the tool body guided on the support rail in the direction of the other by the adjusting device actuatable tool body after each reset of the same in its starting position can, for example, under take place under the dead weight of the movable tool body, for which purpose it is then necessary to hold the tool in such a way that that the mounting rail is in a substantially vertical position. But the construction can also be made in this way be that in every position of the tool in space, the delivery of a tool body along the support rail takes place automatically. Such an independent delivery can advantageously be achieved by means of an energy store, who constantly tries to move the tool body along the mounting rail in the direction of the other Move tool body.

_- Q _

A 44 371 b

y - 193

December 8, 198o - 8 -

Another advantageous embodiment of the invention is for the purpose of advantageous handling of the tool a handle extending away from this in the transverse direction is arranged on the support rail, which is preferably is provided in the plane of the tool body.

The two tool bodies expediently have support legs on which one at a radial distance from the support rail Jaw is provided, at least one of which has a flat workpiece contact surface that extends in one direction to the adjustment of the support leg displaceably arranged on the mounting rail is located in the vertical plane.

The adjusting device can be designed in various ways. You can power operated / for example by a Print medium or be actuated electromechanically. The adjustment device is in its simplest form 'Designed for manual operation, it being advantageous if the tool body which can be actuated by the adjusting device is arranged pivotable about a pivot axis which is perpendicular to the pivot axis and parallel to the Pivot plane of the tool body extending support rail is provided. In this case, the pivotable Support legs advantageously with two lateral bearing legs on the end pieces protruding laterally from the support rail the pivot axis be mounted and a portion of a lever handle of two pivotable relative to each other Lever handles form, which in turn is a part

A 44 371 b

y - 192

December 8, 198o

a toggle lever forms, then on the other lever handle the mounting rail can be fixed. Long-life storage of the pivotable support leg on the support rail can be achieved here in a simple manner that the pivot axis forms a bearing shaft, which are non-rotatably connected to the bearing legs of the pivotable support legs and rotatably mounted in the support rail is.

Furthermore, the adjustment force to be generated by the toggle lever can be adjusted by varying the adjustment path of the pivotable Support leg can be changed continuously when the toggle lever with its one end of the lever on one adjustable and lockable arranged abutment supports.

If parts of workpieces are to be deformed or by Press to be processed, so one of the two support legs can have a workpiece contact surface, which optionally can be equipped with appropriate edges or steps.

Furthermore, it is possible with the aid of the invention Tool to punch workpieces. For this purpose, a punch is provided at least on the jaw of the one support leg to be arranged, wherein the same receiving jaw can be designed so that such a punch, in particular in the form of a sleeve with a circular cylindrical cross-section, for making rivet holes, for example in soft materials can be removed from this, so that workpieces can be deformed or pressed with the same tool or can be punched out.

- 1o -

A 44 371 b

y - 193

December 8, 198o

Furthermore, the jaws of both support legs can each have a cylindrical one on their flat sides facing one another Have recess that are aligned with one another, the a recess can be used to insert a pin to be driven into a workpiece recess. This cylindrical Recesses can be provided in exchangeable jaw inserts to accommodate the area of application of the tool to expand. A further improved design of the tool provides for the one support leg to be designed in such a way that additional tool parts such as punches, pin inserts or cutting blades can optionally be attached to these. If the support leg is equipped with a cutting blade, it is possible, for example, to miter wood strips such as floor strips with the help of the tool or notch. It is possible to cut such strips flat-sided or upright. The tool educates thus a useful tool for painters and upholsterers.

In order to be able to make miter and separating cuts at the usual angles, the flat workpiece contact surface contains of the one support leg bores in which a workpiece stop bar preferably among several Angles to the cutting plane can be determined.

The tool can just as well be used as pruning shears, with branches of relatively large diameters also successively and allowed to cut with relatively little effort. The tool can also be used as cable shears for multi-core cables insulated cables, as hose scissors for art and Rubber hoses as well as scissors for elastic profiles

- 11 -

A 44 371 b

y - 193

December 8, 198o - 11 -

and sheets of rubber and foam are used, with a corresponding length of the support rail, it is easily possible to separate profiles or rubber sheets from 80 to 100 mm thick, for example.

When using the tool for deforming and pressing this practically forms a miniature press, with the help of which, for example, it can be flanged, bent, and trimmed. It is also possible with their help to fold down hollow rivets, as already mentioned, to press in pins and also pinned ones Detox parts.

Further features and details of the invention are set out in FIG the subsequent description of exemplary embodiments of tools according to the invention shown in the drawing and / or explained in the claims. In the drawing show:

Figure 1 is a partially broken side view of a tool designed as a pair of scissors

FIG. 2 shows a section along the line 2-2 of FIG. 1 through the scissors

FIG. 3 shows a section along the line 3-3 in FIG. 1 through the scissors

FIG. 4 shows a front view of a stop bar which can be fastened to one jaw of the scissors

- 12 -

A 44 371 b

y - 192

December 8, 198o

Figure 5 is a partial side view of a second embodiment a tool for • punching objects

Figure 6 is a section along line 6-6 of the figure

FIG. 7 shows the front end of the two in side view

Support leg of a third embodiment of a tool, with the help of which workpieces can be pinned

Figure 8 is a section along line 8-8 of the figure

Figure 9 is a side view of the front part of the support legs of a design variant a pair of scissors according to FIG. 1

FIG. 1o an end view of the scissors according to FIG. 9, seen in the direction of arrow A.

The tool shown in FIG. 1, which forms a pair of scissors, has two support legs arranged in a common plane forming tool body 1o, 12, of which the upper one a support rail 14 is arranged displaceably and can be fixed by tilting. For this purpose, the same has a guide piece 16, which is of a guide opening 18 for receiving the Guide rail 14 is penetrated. This guide opening has narrow guide surfaces 2o, 22, parallel to each other which rest on the opposite longitudinal edges 24, 26 of the support rail. The two guide surfaces 2o, 22 are each through two transverse edges 28, 3o

- 13 -

A 44 371 b

y - 193

December 8, 198o - 13 -

or 32, 34, the transverse edge 3o of the guide surface 2o and the transverse edge 32 of the guide surface 22 to fix the support leg 1o on the support rail tilt as soon as through the support leg 12 over a Workpiece that is present between the two support legs and is to be severed, a pressure on the support leg 1o is exercised.

As can be seen from Figure 1, this is in the longitudinal direction the mounting rail 14 seen, the distance a of each other opposite transverse edges 3o, 32 causing the canting of the support leg are smaller than the distance b the other, the guide surfaces 2o, 22 of the guide opening 18 delimiting transverse edges 28, 34. The has on the side of the tool mouth formed by the support leg existing tiltable transverse edge 3o from the adjacent support leg 12 the greater distance. The smaller distance a the transverse edges 3o, 32 ensure that the tool body 1o can be safely tilted.

36 designates an attachment piece formed on the guide piece 18 to facilitate its handling. Then will will be discussed in more detail below.

The tool body 12, which also forms a support leg, is shown in FIG. 1 at the area of the lower end of the Support rail 14 articulated on this. The tool body is formed here by a shaped sheet metal part, the two has lateral bearing legs 38, 4o in which a bearing shaft 42 is held in a rotationally fixed manner. When pivoting of the tool body 12 rotates accordingly the bearing shaft in a bearing bore of the support rail 14, whereby a

- 14 -

A 44 371 b

y - 193

December 8, 198o - 14 -

resistant storage is brought about, in which it is avoided that when operating the scissors in usually relatively thin-walled bearing legs 38.4o of the tool body 12 are pivoted relative to a fixed pivot axis and thereby, due to the low wall thickness of the bearing legs and the high surface pressure that inevitably occurs at high working pressures, the bearing bores can be expanded.

At the lower end of the support rail 14 is also a handle rigidly arranged, which extends perpendicularly from the mounting rail in the plane of the tool body 1o, 12 away from this. This handle is also formed by a shaped sheet metal part which is U-shaped in cross-section, with its U-legs 46, 48 are penetrated by the bearing shaft 42. The U-legs are positively pressed with the mounting rail. In addition, they can be welded to this in certain areas.

5o denotes as a whole an adjusting device for pivoting the tool body 12. This is through a manually operable lever mechanism is formed which has a lever handle 52 which is part of a toggle lever, whose levers are denoted by 54 and 56 and whose knee joint is denoted by 58. The toggle lever is closed with the lever handle 52 handle. 60 denotes a known release lever which is articulated at 62 on the lever handle and a Has release cam 64 in order to release the tool, to press the knee joint 58 out of a dead center position to be able to.

The lever handle 52 is hinged to the tool body 12 at 66.

- 15 -

A 44 371 b

y - 193

December 8, 198o

68 denotes a tension spring which is between the articulation points 42, 66 of the tool body 12 and on the handle is anchored at 7o. This mainspring tries to The tool body 12 is constantly in relative to the handle 44 a position that is necessary to hold a workpiece inserted between the tool bodies 1o, 12 to release.

The tool body 12, which forms a support leg, carries a on its side facing the tool body 1o flat workpiece support plate 72, the workpiece support surface of which is located in a plane perpendicular to the support rail 14. This plate widens towards the rear and on this widened part are in its workpiece support surface two pairs of insertion holes 74,76 are provided, which in mutually perpendicular planes c-c and d- * d, the are in turn arranged at 45 ° to the plane in which the tool body and the handle are located. A block-shaped stop bar shown in FIG. 4 is inserted into the insertion holes provided in pairs can be plugged in with corresponding plug-in pins 8o, 82. Workpieces to be machined can thus be, for example for miter cutting at 45 ° to the cutting plane e-e in the tool body 12.

The tool body 1o has on its free end piece a cutting edge 84 that is aligned with the tool body 12, which is formed on a cutting blade 86, which in turn, as can be seen from Figure 3, between two on Guide piece 16 provided clamping jaws 88,9o is held exchangeably by means of a clamping screw 92.

- 16 -

A 44 371 b

y - 192

December 8, 198o

The cutting edge is located in the parting plane ere, with you in the workpiece support plate 72 above the one Length extending slot-shaped recess 93 is assigned to contact the cutting edge 84 with the plate to avoid.

The tool body 1o is under the influence of an energy store, which tries to move it constantly on the support rail 14 in the direction of the tool body 12. This energy storage is in the present embodiment by a tension spring, preferably in the form of a Rubber strand 94, which is anchored to a pin 96 provided on the front side of the guide piece 16 and approximately parallel to the mounting rail according to FIG. 1 down to one in the bearing legs 38, 4o of the tool body 12 held deflecting pin 98 and from there, through the bearing legs, according to Figure 1 obliquely upwards and at the rear up to one in the Ü-legs 46, 48 of the handle held anchoring pin 1oo is performed.

The function of the tool designed as a pair of scissors is as follows:

It is assumed that, for example, a multi-core insulated cable is to be cut. For this is the the tool body 1o carrying the blade against the action the tensile force of the rubber strand 94 along the mounting rail according to Figure 1 to move up and the cable on to place the workpiece support plate 72 of the tool body 1o. Under the force of the rubber strand 94, the tool body 1o is displaced in the direction of the cable jacket,

- 17 -

A 44 371 b

y - 193

December 8, 198o - 12 -

until the cutting edge 84 rests against it. Then the shearing can begin, in which the lever handle 52 relatively pivoted to the handle 44 and thereby the tool body in the direction of the tool body 1O / according to the specified Arrow direction / is pivoted. This will result in the Tool body Io exerted a pressure that leads to this canted on the support rail 14 and forms an abutment so that the cutting edge 84 in the to be cut Cable sheath penetrates according to the amount by which the tool body 12 is pivoted.

Once this first partial cut has been made, the tool body 12 is again in the opposite direction pivoted back into its starting position, with the tool body 1o now being increased by the amount by which the workpiece support plate 72 is reset, is readjusted in the direction of the tool body 12. This means that the two tool bodies are in their relative position to the cable when pivoting the tool body back into its starting position unchanged.

Should the readjusting movement to be initiated by the rubber strand 94 of the tool body 1o be inhibited due to its tilting on the mounting rail, so can with the thumb, the extension piece 36 of the tool body 1o slightly lifted and this can be released from the mounting rail.

When the adjusting device 5o is actuated again, a partial section is then again described in FIG Wise done so that even objects are relative

- 18 -

A 44 371 b

y - 192

December 8, 198o

large diameter can be cut through successively without excessive force by making cuts one after the other the same depth and the cutting blade 86 works its way deeper and deeper into the workpiece.

Figures 5 and 6 show a serving as a hole punch tool for punching elastic materials such as rubber or Foams, even with extreme thicknesses. For this purpose, the tool body 1o is at its free end with an in this preferably interchangeably arranged, cylindrical punch 1o8 equipped, which is in a on the tool body 12 provided cylindrical sleeve 1o7 is able to immerse. The latter is in a receiving bore 112 of the tool body arranged. Figure 6 shows the arrangement of the punch 1o8 on an insert 114 that is in the tool body 1o is arranged interchangeably. As an alternative to this, only a hollow punch 1o7 could also be used on the tool body 12 may be provided.

FIGS. 7 and 8 show an exemplary embodiment of a tool which is used for driving in cylinder pins 116 is converted or designed in bores of workpieces 118. In this case there is 12 in the tool body a pin insertion hole 12o, the depth of which is small, while a pin receiving bore 122 is provided in the tool body 1o in alignment with this bore, which correspondingly is deep.

In the case of the scissors according to FIGS. 9 and 1o, tool bodies are on both each a cutting blade 13o or 132, preferably interchangeably fastened in such a way that their cutting edges

- 19 -

A 44 371 b

y - 192

December 8, 198o

134 and 136 move directly past each other when closing the scissors. The cutting blade 132 or the support arm of the The tool body 12 according to FIG. 1 can also be pulled down relatively far, so that the cutting edge 136 or the workpiece support surface 1o2 so far below the Storage of the relevant tool body arrives that, for example, continuous separating cuts in a dash-dotted line indicated sheet metal plate 1o6 can be introduced.

It is clear that the tool body can be designed so that the work described with the help of Tool can be carried out optionally.

It is also evident that the arrangement of a Processing tool u. offers particular advantages if it is actuated by the adjusting device Tool body 12 is provided.

The arrangement of a machining tool on the tool body 1o, on the other hand, offers the possibility of one that can be carried out at short notice Tool change, in which the tool body is equipped with another machining tool against one Tool body can be exchanged.

Blank page

Claims (5)

HOEGER ^ ST.ELl.RECRT ^ .PARTNER PATENTANWÄLTE UHLANDSTRASSE 14 cD 7O00 STUTTGART 1 A 44 371 b Applicant: Bessey + Sohn GmbH & Co. y - 192 Augsburger Strasse 7o8 December 5, 198o 7ooo Stuttgart 61 Patent claims: 1. ) Tool for processing workpieces, with two tool bodies arranged in a common plane, between which the workpiece to be processed can be introduced, of which at least one is movable relative to the other, characterized in that the one tool body (1o) along a support rail (14) can be moved and fixed by tilting and the other tool body (12) can be moved back and forth alternately to the other tool body (To) by means of an adjusting device (5o) and that at least one tool body (1o) is provided with a machining element . 2. Tool according to claim 1, characterized in that on the support rail (14) one extends from this in the transverse direction extending handle (44) is arranged. 3. Tool according to claim 2, characterized in that the handle (4 4) in the plane of the tool body (1o, 12) is arranged. 4. Tool according to claim 1 to 3, characterized in that the two tool bodies (1o, 12) each have a support leg on v / iron on which a jaw is provided at a radial distance from the support rail (14), of which at least one has a flat workpiece contact surface, which is in a direction of adjustment of the on the mounting rail (14) slidably arranged support leg (1o) Λ 44 371 b y - 193 December 5, 198ο - 2 - vertical plane. 5. Tool according to one of the preceding claims, characterized by an energy store (94) which constantly trying to move along the support rail (14) To move the tool body (1o) in the direction of the other tool body (12). 6. Tool according to claim 5, characterized in that the energy storage device by a particular as a rubber strand (94) trained tension spring is formed. 7. Tool according to claim 6, characterized in that the tension spring (94) extends with a portion substantially parallel to the longitudinal direction of the support rail (14) and is anchored at a distance behind a deflection point (98) in particular on the handle (44), wherein the deflection point (98) is provided at a point which, when the jaws of the tool bodies (10, 12) rest against one another, is at a distance from the tool body (10) which is slidably arranged on the support rail (14). 8. Tool according to one of the preceding claims, characterized in that the adjusting device (5o) is actuated by the pressure medium. 9. Tool according to one of the preceding claims, characterized in that the through the adjusting device actuatable tool body is arranged on the support rail so that it can be pushed back and forth. 1o. Tool according to one of the preceding claims 1 to 8, ■ A 44 371 b
y - 193
December 5, 198o - 3 - characterized in that the tool body (12) which can be actuated by the adjusting device (5o) by one Pivot axis (.42) is arranged pivotably, which is perpendicular to the pivot axis and parallel to the pivot plane of the tool body extending support rail (14) is provided. 11. Tool according to claim 1o, characterized in that the pivotable support leg (12) with two lateral bearing legs (38.4o) on the out of the support rail (14) laterally protruding end pieces of the pivot axis (42) is mounted and a portion of a lever handle (52) formed by two lever handles pivotable relative to one another, which in turn forms part of a toggle lever forms, wherein the support rail (14) is fixedly arranged on the other lever handle (44). 12. Tool according to claim 11, characterized in that the tension spring (94) with its section extending essentially parallel to the support rail (14) between the bearing legs (38, 40) of the pivotable support leg (12) extend in and are deflected between them is. 13. Tool according to one of the preceding claims, characterized characterized in that the sliding along the support rail (14) The tool body (1o) extends in the opposite direction to that for holding a workpiece serving portion has extending extension piece (36) for its handling. 14. Tool according to one of the preceding claims, characterized A 44 371 b y - 192 December 5, 198o characterized in that seen in the guide direction of the displaceable tool body (1ο), the distance of the on opposite edges (24,26) of the support rail (14) tiltable transverse edges (3o, 32) of the guide piece (16) of this tool body (1o) is smaller than that of the other transverse edges (28, 34) delimiting the guide surfaces (2o, 22) of the guide piece (16), the cantable transverse edge present on the sides of the tool mouth formed by the four k zeugkör by (1o, 12) (3o) from the adjacent .Tool body (12) has the greater distance. 15. Tool according to one of the preceding claims 4 to 14, characterized in that on the jaw of the tool body (1o), which is opposite the one with the flat workpiece contact surface, a punch (1o8), is arranged in particular in the form of a sleeve with a circular cylindrical cross section. 16. Tool according to one of the preceding claims 1 to 14, characterized in that the jaws of both tool bodies (1o, 12) each have a cylindrical recess (12o, 122) on their facing flat sides which are aligned with one another, the one recess (12o) being an insertion hole for one in a workpiece (118) to be driven pin (116) forms. 17. Tool according to one of the preceding claims 1 to 14, characterized in that the jaw of at least one, in particular on the support rail (14), is displaceable guided tool body (1o) is formed by a cutting edge (84). A 44 371 b y - 193 December 5, 198o - 5 - 18. Tool according to claim 17, characterized in that the cutting edge (84) on the jaw of the other tool body (12) which has a flat workpiece contact surface an insert made of relatively soft material or a recess (93) in this is assigned. 19. Tool according to claim 18, characterized in that the flat workpiece contact surface contains bores (74, 76) in which a workpiece contact strip (78) is preferably can be fixed at several angles to the cutting plane (e-e). 20. Tool according to one of the preceding claims 16-18, characterized in that the cutting edge (84) is part of a cutting blade (86) attached to the tool body (1o) is arranged to be exchangeable. - 6 -