HU198275B - Metallworking apparatus for parting and bending wire or sheet bands - Google Patents

Abstract

The present invention relates to a metal working machine for cutting and bending wire or plate strips, having a power train (30) propelled snail (4) attached to it it has a worm wheel (3). Force control (2) has a circular circumference with a worm wheel (3) is fixed. The forced track control (2) has a cutting and bending insert moved by and a material transfer device (28) seeing. The device is designed to be fixed it contains a basic body in which it can be moved a guide for cutting and bending pads is provided. The basic body has a material inlet first guided provided. The forced-track quadrant (2) is the basic body its sides are movable and circumferential part of it. a material transfer device (28) operates equipped with a connector (s) (7). In the basic body the. adjustable stop for front guiding second guide, and bending for the capital, there is an additional fourth guidance. The bending capital can be fixed in the fourth guide. Movable cutting and bending insert moves preferably a roller is connected, in the control unit (2), the control unit (2) Continuous forced path around its geometric center in the groove (Fig. 1).

Description

BACKGROUND OF THE INVENTION The present invention relates to a metal working apparatus for cutting and bending wire or sheet strips having a self-feeding material conveyor. It is intended for the production of workpieces containing fixtures, angles, right-angled bends, or any combination of these, and is advantageously used for high-productivity serial production.

Known as the simplest way to process wire workpieces are hand-held special purpose tools, which can be used to make specific special products such as compression and tension springs and fencing. Each special tool is designed to perform a specific operation, so its use is very limited.

The Hungarian 84,494. U.S. Patent No. 4,600,900 discloses a spiral-curved eagle-forming machine, which requires successive series of identical bending phases for serial production. The solution does not allow for productive serial production since the individual operations are sequential due to the training of the forced path, and thus the production of the workpiece, i.e. the stud, is very time consuming. A disadvantage of the solution is that the reset is performed by springs which become tired during use, resulting in inaccurate work or reset, thereby rendering the workpiece inaccurate and producing a faulty pin.

The US. 4.471819. U.S. Patent No. 4,600,900 describes a device that requires additional auxiliary energy, hydraulic or pneumatic, to operate. In addition to being very costly to build and providing frequent failures, the lack of auxiliary power renders the unit inoperable and not capable of cutting and bending.

SUMMARY OF THE INVENTION The object of the present invention is to provide a solution which does not require additional auxiliary energy, by means of which the metalworking machine enables various bending operations to be carried out simultaneously and with which productive serial production can be realized.

It has now been found that the cutting or bending of the wire or strips can be accomplished by a constrained path control having a continuous path. This means that there is no need to adjust the starting position at any given time, because the continuity of the forced path causes the cutting and bending inserts to move continuously at the predetermined time, and thus have to be adjusted separately. Simultaneously with the continuous forced path, depending on the complexity of the metal processing required, not only one but also several cutting and bending inserts can be moved, thereby increasing productivity.

It has also been recognized that additional constraint paths may be required to perform special bends, in which case the intersection of the constraint paths may be inevitable. According to the invention, the grooves of the crossing guideways have been designed in such a way that in the case of> level grooves an additional auxiliary groove is formed, so that the inserts movable in the guide having a continuous forced path is movably formed on a fixed base, and the guides are movable in the base body for adjustable stop and bending capital, so that the guides can be adjusted in accordance with the desired workpiece. Because the actuator may have multiple forced paths as required, the actuator is movable on the base body to move additional side bending inserts, for which the base body also has guide (s). An actuator, preferably a roller, is connected to the cutting and bending insert (s), which actuator (s) is / are movably disposed about a continuous forced path (s) about the geometric center of the actuator.

In this solution, a conveyor known per se is used and a connector (s) for actuating the conveyor are located in a portion of the circumference of the actuator. Thus, the metalworking apparatus according to the invention is driven by a worm spindle driven from a known power transmission device by means of a helical spindle and a worm wheel disposed on a circular circumference of the guiding track, which actuates the material conveying mechanism.

BACKGROUND OF THE INVENTION The present invention relates to a metal working apparatus for cutting and bending wire or sheet bands having a worm spindle driven by a power transmission mechanism and a worm gear connected thereto. Contains a forced-track control gear with a worm wheel fixed to a circular circumference. It has a cutting and bending insert which is moved by the forced path control and has a material conveying mechanism. The apparatus is configured to include a fixed base body in which a guide is provided for the movable cutting and bending insert and the base body is provided with a first guide. The constrained conveyor control unit is movably disposed over the base body and has a portion of its circumference with connectors for actuating the material transfer device. Preferably, the base body and the actuator have a circular aperture in the vicinity of the geometric center of the actuator, which are arranged one above the other. It comprises a clamping bearing in the opening of the actuator, a first guide for the material inlet is connected to the opening of the body, and a second guide in the basic body is provided for the adjustable stop on the side of the opening opposite the first guide. The second guide is arranged perpendicular to the third guide for the movable cutting and bending insert and opposite to the third guide, an additional fourth guide is provided on the opposite side of the opening for the bending base in which the bending lever can be fixed. A movable means, preferably a roller, is attached to the movable cutting and bending insert, which is continuous in the actuator and extends around the geometric center of the actuator.

-2 in the groove of the orbital track, vari illes / lve.

The constraint track preferably includes straight s / hooks laths and / or ring rings

Preferably, the device has an additional movable side bending insert (s) and a fifth inline core (s) formed for the insert (s). The side bending insert (s) are moved to the left - preferably a roller (s). the additional constrained track (s) in the control gear are movably fitted in the groove (s) The additional forced track (s) are continuously formed around the geometric center of the guide and have a guiding line other than the guiding track. in the case of the intersection of their other forced paths), the movable device of the movable device on one of the forced paths is provided with a projection for which a further auxiliary groove is formed in the groove of one of the forced paths.

In a further advantageous embodiment of the apparatus, a machined actuator is provided for removing the machined material on the bending rod, the downward lever of which is designed as a two-arm lifter and is provided with a support bracket. One end of the depression arm extends beyond the outer edge of the actuator and includes a roller, and the other end opens over the spring support of the spring on the holding bracket located above the actuator opening. Inside the compression spring, a push tool is provided which has a bore through the support bridge and has a track section fixed to the base body and guiding the roller of the pressure arm to move the pressing arm.

A possible exemplary embodiment of the metal working apparatus of the present invention will be described in detail with reference to the accompanying drawings, in which:.

Figure 2 is a top view of the device; Figure 2 is a sectional view of the device; Fig. 4a view of the body, a

- 3b. Figure 3c is a side view of the body; Figure 4a is a front view of the body; FIG

4b. Figure 1A is a sectional view of a control gear, a

- 5a. Fig. 4A is a view of a possible movable cutting and bending insert superimposed

5b. Fig. 3A is a side view of a possible movable cutting and bending insert;

- 6a. Fig. 4A is a plan view of a possible bending capital;

6b. Fig. 4A is a side view of a possible bending capital;

Fig. 7a is a top view of a possible side bending week, a

- 7b. Figure 3 is a perspective view of a possible side bending insert;

Figure 8 is a plan view of a machined material, a

Fig. 9 is a schematic diagram of a top view of the body with movable cutting and bending inserts, side bending inserts and bending members

In Figure 1, the device is preferably driven from a power device (not shown) through a power transmission structure 30 via a wedge pulley whose axis extends through a manifold 5 and is connected to a worm spindle 4. 3 screws are connected to the spindle 4. The worm wheel 3 is mounted on the annular circumference of the conveyor guide 2 by means of pre-tapped screws 37. The actuator 2 is movably mounted on the base body 1 (Fig. 2). Preferably, the base body 1 and the actuator 2 have circumferentially spaced openings 1 'and 2' (Figs. 3a and 4a) spaced over one another and include a bearing 17 (Fig. 2) clamped in the aperture 2 'of the actuator 2.

It can be seen in Figure 1 that a portion of the periphery 2 of the device is provided with a connector (s) 7 for actuating a conveyor frame 28. The slider (s) 7 is mounted on the conveyor (6), which is fastened by means of screws 38 to the guide (2). The roller 22 (not shown in Fig. 1), which is a material of the wire or plate band, facilitates the movement of the wire or plate band. The roller 22 and, with it, the material to be processed, is pressed through the compression spring support ring 34 between the roller bearings 9, 10 of Fig. 2 The roller 9 is moved to the roller 26 and the roller 10 ring conveyor 28 is provided by a transmission roller 32 of the conveyor 28, the location of which is determined by a locking disc 25 having a common threaded axis 27, the conveyor belt 9, 10 also being upright; together with the described positioning elements. Λ threaded shaft 27 is locked with 43 sec / nut nut The conveyor 28 can be secured to at least two struts of the base body 1 for positioning

Figure 1 (and Figure 2) shows that the actuator 2 is provided with a release means having a depression arm 14 designed as a two-arm lift and a support bracket 15, which is secured to the actuator 2 by a 40-socket. One end of the crank 14 hangs over the outer edge of the actuator 2 and includes a roller 16, and the other end extends over the spring support 20 of the compression bracket 35 on the support bridge 18 located above the actuator 2 '.

Inside the compression spring 35 is a punch number 19 for which a hole through the holding bridge 18 is provided.

The roller 16 of the tumbler arm 14 is guided by a track section 13 fixed to the base body I by means of 39 screws and 8 spacers and actuates the tumbler assembly. Λ Mounted on bracket 15 2 2 prevents tilt arm 14 from tilting further horizontal position edge pt> t

The outer bores of the support bridge 18 and the bores of the clamping bearing 17 can be fitted to the base body 1, the control gear 2. thus, the holding bridge 18 not only holds the punch 19 in proper position

3a. Fig. 4A shows the structure of the base body 1 above. Inside the base body 1, a guide guide M1 is connected to the knife-shaped opening 1 'and another guide M2 is provided in the base body 1 which is perpendicular to the guide M3 for movable cutting and bending weeks 44 in the base body 1. arranged. Lead the third M3! opposite the opening opposite the cyclan of? I base for 45 bending capital

- a further fourth M4 mcgvc / .etcs is provided. Λ The bending stroke 45 is secured in the inserting hole 43 and the threading 47 in the latching M4 can be secured through the countersunk 48 hole. A possible solution of the bending lever 45 for a given end product is illustrated in Figures 6a, 6b. In the two apertures 49 shown in Fig. 6a, the stroke number 19 moves.

An exemplary movable cutting and bending insert 44 for the same end product is described in Figures 5a, 5b. Fig. 5A shows a curve 51 with a cutting surface and a recess 52 with a bending portion. The actuator 53 is preferably provided with a roller (not shown in Figures 5a, 5b) movably connected to the insert 44 by a movable groove H1 in the continuous forced path KI formed in the guide flange 2. The forced path KI is continuous around the geometric center of the actuator 2 and includes a straight section (s) and / or arc (s) for moving the movable cutting and bending insert 44 (see Fig. 4a, b).

If necessary, the device has additional movable side bending insert 46 (s) vcl and the guide (s) M5 provided in the base body I (Fig. 3a). The page deflector bct 46 (ck) for the final product described is identical on both sides, a possible solution of which is illustrated in Figures 7a, 7b. . The movable side bending pad (s) 46 is connected to the movable side bending insert (46) by means of a moving means (not shown), preferably a roller bore (54). The actuating means are movably mounted in the groove 112 of the additional forced path (s) K2 formed in the actuator 2 (Fig. 4a, b).

The additional forced path (s) K2 are also continuously formed around the geometric center of the actuator 2 and have a different orientation from that of the forced path KI.

At the intersection of the forced paths K1, K2, one of the means for moving the insert 44, for example moving on the forced path KI, is provided with a protrusion NY, which is provided with auxiliary groove H3 in the groove H1 of the forced path KI. The auxiliary groove H3 functions as a "shift", providing a sufficiently secure passage (or passage) in the desired direction. Given that H3 auxiliary groove is difficult to work out, where there is no need for secure guiding (since there is no intersection and the propulsion device does not get lost in its own H1 groove, instead of a narrow auxiliary groove 113, sufficient H4 auxiliary groove is used. the formation of the auxiliary grooves H3, H4 on the AA section and section is clearly visible (Fig. 4a b).

4b. 2A, the shoulder formed under the bores 29 serves to fasten the worm wheel 3.

Fig. 8 is a plan view of a possible material M machined with a metalworking machine for which a bending pin 45 is required as shown in Fig. 6a. FIG.

The detailed operation of the metalworking apparatus according to the invention is described below. For a better understanding of the operation, Fig. 9 shows a basic body 1 with a schematic diagram of the movable cutting and bending insert 44, the side bending inserts 46 and the bending member 45.

The preload spindle 4, driven from the machine via a transmission 30, rotates the worm wheel 5 and, with it, the control belt 2. During the rotation of the actuator 2, the continuous forced paths K1, K2 are in continuous motion and during one revolution, i.e. within a range of 360 °, the metalworking machine performs various working phases.

First, when the inserts 44 and 46 are in the open state, that is, on the forced paths K1 and K2 of the control gear 2, the actuators of the inserts 44 and 46 are located in the grooves H1 and H2 with the greatest radius; feeding the material to be processed (wire or plate strip) through the first MI guide of the material inlet. Depending on the particular need, the feed rate can be controlled by varying the rotation of the power roll 32 and the specific size of material required for the workpiece to be machined by adjusting the stop in the second guide M2.

After the dosing is complete, the actuator 2 is a movable means for moving movable cutter and bending insert 44 in the groove H1 of the forced path KI, preferably a roller.

with the help of the bending capital 45, it firstly cuts (cuts) the material with the insert 44 and then with the bending capital 45 opposite the movable insert 44 and performing a first bend corresponding to the configuration of the insert 44 (the material shown in dashed line 45 in FIG. 9).

If the workpiece has not been completed

this is also the case with the leveling of the insert 44 in the exemplary case: by means of the side bending inserts 46 moving in the groove H2 of the K2 forced path - at start, the right side bending insert 46 from 280 ° and the left side bending insert 46 from 140 ° Fig. 2) starts - when the control gear is rotated, the inserts 46 are simultaneously dismounted and the side drives are performed on both sides. The metalworking apparatus is then in a closed position, each of the inserts 44 and 46 being connected to the bending mandrel 45 through the material to be machined.

During rotation of the actuator 2, the inserts 44 and 46 simultaneously open and remain open until the punching tool 19 of the punching mechanism removes the finished machined end product from the bending member 45. The roller 16 of the pressing lever 14 of the punching mechanism is guided by a track section 13 fixed to the base body 1 by means of screws 39 and a spacer 8 and actuates the punching tool 19, which removes the machined end product from the bending pin 45 through the hole 18.

The operations described above are repeated at 360 °.

Thus, using the exemplary movable cutting and bending insert 44 (Figures 5a, 5b), the bending lever 45 (Figs. 6a, 6b) and the side bending inserts 46 (Figs. 7a, 7b), the The final product shown in FIG.

The advantage of the metal working device according to the invention is that the continuous alignment and angular position of the forced paths K1 K2 of the control gear 2 and the angular positions defining the movement of the movable inserts 44, 46 can always be varied according to the desired end product.

-4198 275 by means of a control unit 2 - where the continuous alignment of the forced paths K1, K2 ends / .supplies other than the cutting and bending operations 5 other than those described in the example, the inserts 44, 46 and the bending lever 45 can also be replaced, according to the end product to be produced.

By diverging the paths K1, K2, jq, more than one end product may be produced by turning the actuator 2 around one turn.

The metalworking apparatus according to the invention is very productive and is preferably suitable for producing end products such as lm, strips, clips, straps, tongues, for example.

Claims (6)

PATENT CLAIMS 1 Metal-working apparatus for cutting and bending wire or plate strips 20 having a worm spindle bent from a power transmission means and having a worm wheel connected therewith, having a helical guide having a circumferential circumference fixed by a helical wrench and a helical wedge and is provided with a material conveying device, characterized in that it comprises a clog / untapered body (1) in which a guide (M3) is formed for the movable cutting and bending insert (44), and. the base body (1) being provided with a first guide (M1) for inlet of material, the forced path control device (2) being the. being movably disposed over the base body (1) and provided with a plurality of connectors (7) for actuating the material transfer device (28) in part of its circumference. preferably having an annular passage (1 ', 2') in the vicinity of the base body (I) and the geometric center of the actuator (2), which are disposed over one another ¹³⁰ and having a bearing (17) on the opening of the actuator (2); a first guide (M2) is provided in the circular opening (1 ') of the body (1'), the first guide (M1) of the inlet (1 ') being provided, disposed perpendicular to the third guide (M3) for the movable cutting and bending insert (44) and opposite to the third guide (M3) on the opposite side of the opening (1 ') in the base body (1) 45), a further guide (M4) is provided, in which the bending device (wedge (45) is fastened, the means for moving the movable cutting and bending insert (44) is preferably connected to a roller). The geometric center of the actuator (2), which is trained in the vice driver (2), is movably fitted in a groove (HI) of a continuous forced p, lya (OFF). 2. The apparatus according to claim 1, wherein j. 1 1 that the runway contains straight sections) and / or corridor (s) Device according to claim 1 or 2, characterized in that: characterized by an additional movable side bending pad (s) (46) and a guide tc: (v) vcl (M5) trained in the base body (1) for the pad (s) (4 <), Preferably, a roller is connected to the actuating means (46), the additional path (s) K2) formed on the guide track (2) being mounted in the movable (2). The apparatus according to claim 3, wherein 1 1 e 111 e z v e, ligoy the other forced path (s) (k'2) the geonetic center of the control gear (2) is continuous and the line leading from the path of the forced path (OFF) is cl 1 Apparatus according to claim 4, characterized in that, in the case of intersection of the forced paths (KI, K2), the insert (44) movable on one of the forced paths (KI) is provided with a moving projection (NY) or in a groove of one of the forced paths (OFF) (H1, a further auxiliary groove (li3) is provided. Device according to one of Claims 1 to 5, characterized in that the machined material, which is removed from the bending rod (45), is further provided with a pressing device (2) mounted on the guide bar (2), which is designed as a two-arm hoist. , and provided with a support bracket (15), one end of the depression arm (14) having a winding and roller (16) on the outer 'edge of the controller (2) and the other end above the arrow (2') of the controller (92). extending over the spring support (20) of the compression spring (35) on the live retaining bracket (18), a die (19) is provided inside the compression spring (35) for which a bore (FU) is formed through the bracket (18), and having a track section (13) fixed to the base body (1) for moving the pressure lever (14), guiding the roller (16) of the pressure lever (14) 8 pieces of drawing