Positionierungssystem von zu bearbeitenden Werkstücken und eine mit einem solchen System ausgestattete Maschine

The present invention relates to a positioning system of workpieces to be machined and a machine equipped with such system.

Exact the invention relates to a system for angular positioning, the substantially designed and has been built, from on machinery and equipment to be mounted, the plates. Wood, fiberglass, plastic and similar Edit, and adapted, to allow the oblique cut of the said plates.

Below are the description is processing machines, in particular for cutting wood, concern, but it is clear that the same is to be considered limited to this specific use as not.

Good as is well known, there are currently different types of machines for working wood. For example, sawing machines are well known, which provide a working surface including a fixed part commonly, on which a slot is provided, from which a circular blade for cutting the plate can emerge, and a movable part or carriages have, with respect to said fixed part along a direction, along or parallel to the plate to be cut will be promoted, are movable.

Particularly in this type of machinery the plate onto the mobile part is positioned, wherein the sharp portion is disposed on said fixed part to. The panels to be processed have a generally rectangular shape. Next to the oblique cut, in other words along parallel cutting lines to the sides of the panel to be machined, it is needed, often perform diagonal cuts. For this purpose, the machines according to the known art are generally equipped with a ruler or a reference staff , the at one end pivotally to the movable part of the work surface is rotatable, with a plate or goniometer, are disposed generally below said Ruler or reference staff , to measure the angle of inclination of the latter to so, with respect to a reference, for example, with reference to the direction of advance of the plate,.

In general, according to the reference side or on the the reference elevation of the plate has to be calculated, has been pivoted so as to hold approximately must be compensated for the oblique cut is arranged to perform, after the reference seaweeds on the protractor about the particular angle of intersection corresponding to, the position of said plate, to one of the sides of the reference seaweeds , suitably, about the reference elevation with respect to the line of intersection.

Indeed, one considers that the pin on the said rod in rotation with respect to said movable part of the work table is rotated, normally being reference staff is located at the end of said, describes a circular locus of points each point the same, the has the position of said pin as the center.

Therefore, based on the rotated angle reference staff and the side of the, on which the plate to be machined • is started up, in accordance with an adjustment of the point of the reference elevation for the measurement must the proportion of the slab to be sliced are calculated.

computer systems Solving this problem exist in the known technique, the automatically the calculation of the

i

reference staff carry out on the adjustment of the position of the plate. Such solutions seem to be very expensive and complex.

The Applicant for is holder of the patent application Nr.

B02003A000324, describes a device which is connected with a the reference staff , reference staff is provided with balancing means of the linear position of said the.

Such solution, although economic and practical than the preceding, the specific knowledge requires the operation of the device, the still is a complex one.

Another solution according to the known technique the equipment provides for the machine with a before reference staff , which is capable of is about 90° has to rotate approximately compensates for, from a position in which the said parallel to the direction of advance of the panel to be machined reference staff , starting, and with a ring, of such shape that it the linear position of the reference seaweeds.

In this way the machine is in a position, for example, 45° to 135° of diagonal cuts, to perform. The disadvantage of this machine is that during cutting at an angle of 135 °, the operator must provide Arrange physically present on the opposite side of the reference staff. In other words, he must move, what leads to a further loss of time and the increased risks operation-hurry.

In the light of the foregoing it is, the problem of the present invention, a system for positioning the panel to be machined for machines for machining panels A

of wood, plastic, fiberglass and the like, to propose, exceeds the limits of the known technique the.

A specific object of the present invention is therefore a plate in a positioning system, for example a panel of wood, fiberglass, plastic or the like, for a machine for the working of said plate, the machine being of the type, the comprises a work surface, comprising a stationary and a movable part or carriage, of the with respect to said fixed part is movable along an axis in which said panel to be machined, and a tooling material, such as a circular saw or the like, the sectional plane has a line or a define, wherein said positioning system positioning staff of said plate a, the has is rotatable with respect to the said axis of forward movement and at least one straight side in such a way that the line, along the said side a corresponding reference point on said line or sectional plane identified passes, wherein said plate is movable into abutment with said at least one side for positioning the same, for processing by said tool, and reference body comprises, on at least one said side are arranged is maintained to allow for the positioning of the shift are to rotate comprises side of the plate is rotated into contact with the at least one said side, after a predeterminable degree with respect to said reference point, characterized in that said positioning system further comprises means for guiding the said positioning staff , the configured in such a manner that when said positioning staff by a predeterminable angle with respect to said advancement axis, , said guide means and said rod parallel itself in such a way that the through said reference body of said at least one side with respect to the respective reference point, defined amount, constant.

Women still according to the invention, such guide means can comprise at least one guide, connected to said at least one of said at least a guide in sliding engagement with and positioning staff comprise slide pin, and they can include a setting pin, can be connected to said movable part of said machine, wherein said rotationally positioning staff on said setting pin is rotated by an elongate slot.

Even according to the invention, said longitudinal slot are arranged at one end of said can positioning staff.

prescaler way according to the invention, said a first straight side positioning staff can is arranged in the opposite direction with respect to the the feed axle , and a second straight side, the identify is arranged in the direction of said advancement axis have, , wherein said first and second side of said each case two reference points on said line or cutting plane [...] , and wherein said plate for positioning in abutment with the said first and second side with said tool can be the same for the processing may comprise approximately, and wherein said respective reference body positioning staff , on said first and second side of said are arranged positioning staff.

Even according to the invention said guiding means may include a first and a second guide and a first slide pin and a second slide pin, respectively in sliding engagement with said first guide and with said second guide are, wherein each of said sliding studs with respective coupling means for selectively coupling with said positioning staff is provided such that: when said first slide pin is coupled with said positioning staffpositioning staff around said angle is rotated and said, the measure is the reference body, are arranged on said first side of said positioning staff , balanced, wherein the said first side of said from said reference bodiesreference staff with respect to the respective reference point defined measure becomes constant held; and when said second slide pin and said coupled with said positioning staffpositioning staff is rotated around the said angle is, the dimension is the reference body, are arranged on said second side of said positioning staff , balanced, wherein the said second side of said from said reference bodiesreference staff with respect to the respective reference point defined measure is compensated.

Always according to the invention, said system can comprise a plate, on which a scale for the measurement of the angle of inclination of the attachable positioning staff , wherein said plate is arranged below said positioning staff , and wherein said first and second guide are formed on said plate.

Even according to the invention, said system may comprise a support frame, are arranged on the said guiding means, the said work surface is fixed onto the mobile part, the cantilevered from the last.

prescaler way according to the invention can be arranged on said supporting frame said setting pin.

Continue according to the invention, said support frame comprise upper extendable rods for holding said can plate to be worked.

Middle is the subject of the present invention a machine for machining panels, particularly panels of wood, fiberglass, plastic, comprising a work surface with a fixed and a movable part or carriage, of the with respect to said fixed part along a feed axis of the panel to be machined is movable, and a tooling material, such as a circular saw or the like, having a line or section plane defined, characterized in that it comprises a positioning system of said plate as before mentioned, comprises.

The present invention is now described according to their preferred but not restrictive purposes for speeches illustrative , in particular with respect to the Figures of the accompanying claims, , in which:

Figure 1 shows a front perspective view of a machine equipped with a positioning system according to the present invention;

Figure 2 shows a rear perspective view of the machine according to Figure 1;

Figure 3 shows a top view of the machine according to claim 1;

Figure 4 shows a plate to be machined;

Figure 5 shows a first arrangement of the machine and of the positioning system for an oblique cut;

Figure 6 shows a second arrangement of the machine and of the positioning system for an oblique cut;

Figure 7 shows the arrangement of the machine and of the positioning system for a first inclined section; and

Figure 8 shows the arrangement of the machine and of the positioning system for a first inclined cut.

In the various Figures similar parts are marked with the same reference numbers.

With reference to Figures 1-3, we observed a 4 equipped with a positioning system 1 according to the present invention working machine.

In particular, said processing machine comprises a work surface 1 substantially 2, a blade (not visible in Figures), the a line or section plane T identified, and a positioning system 4 a plate or a workpiece to be cut by said blade.

The said working surface 2 is disposed on a bed 21 comprises a fixed and a movable part or carriage 22 and 23, of the with respect to said fixed part 22 is movable along the X-axis, with respect to which said plate P and moved to be cut is fed.

(Not shown in Figures) is circular and the movable blade in such a way that it emerges from a slot 24 is formed on said fixed part 22. The said blade is coated with a protective body 25 is provided to a moveable arm.

The positioning system 4 comprises a support frame 41, the 23 is fixed onto the mobile part with respect to the latter and said work surface is cantilevered. The said support frame comprises a support foot 41 411 also, an arm 2 for connection to the said bed 21 said work surface 412, 413 and upper extendable rods, can be arranged to be cut on which the said plate P.

The positioning staff 4 comprises a positioning system 42, 421 422 has a first end and a second end the, and a first straight side 423, the in the opposite direction with respect to said first side, i.e. in the direction of X-axis is arranged.

On said first and second sides 42 423 and 424 of said are reference body arranged positioning staff , as is better explained hereinafter.

423 and 424 of the first and second sides along said The positioning staff 42 passing said straight line, the line cross sectional plane T are each in two points 0 or ' and 0".

The positioning staff 42 is in rotation on a said (not shown in Figures) setting pin pivoted, 41 is fixed on said support frame. In particular, said positioning staff with said setting pin is (not shown in Figures) connected by a longitudinal slot, 42 is formed on said positioning staff. The said elongated slot has an excellent straight shape, in the vicinity of said first end is arranged and excellently 421 positioning staff 42 directed along the longitudinal axis of the parallel or with L indicated.

Also, when said positioning staff 90° with respect to the X-axis at 42 is disposed, the first end 421 a predetermined distance with respect to the line of intersection carbon has, from said blade is identified and is parallel to the said X-axis.

The said positioning system 4 also includes a plate 43, 431 and 432 on which a first bend are mounted a second curved guide, and a first and second slide pin, 44 and 45 are respectively indicated with the reference numbers. 44 and 45 are respectively with the said first second sliding studs The said first guide and said second guide slidably coupled 431. 44 and 45 with respective coupling means is each of the said sliding studs, for selectively coupling with said positioning staff , provided.

On the said plate 43 is also a scale for the measurement of the angle of inclination α with respect to the angle of 0° formed positioning staff of the 42, the conventionally Composing, 42 is arranged perpendicular to the said X-axis when the positioning staff. The plate 42 arranged in such a way with respect to said bottom 43 is positioning staff that these can slide on its surface, with respect to said setting pin.

Finally, the positioning system comprises a 4 46 stop adjustment also, the is slidably movable on said positioning staff 42 is rotatable with respect to it on that can be locked in place and in such a way that they are alternately on said first side or said second side 423.

The operation of the above-described positioning system 4 is as follows.

Figure 4 is If, so we observed an example of a rectangular panel to be machined P that exhibits a side C, along which the cutting process is identified is effected, of the larger and the smaller side A B. The exceeding line represented by the coated part of the slab to be sliced is P. The side is facing away from the side D present C.

It Is required, (see Figure 5 or 6) to carry out an oblique cut, 42 is arranged in such a way so the positioning staff that it is arranged perpendicular to the said X-axis in such a way that the angle α on the dial 43 0° the plate. In such a configuration, the second end 42 is aligned with the cutting line 422 of said positioning staff C. The to be cut can be arranged close to the said first side plate P 423, wherein in such a case either said stop adjustment 46 on the first side is to be cut by the extent according to the said plate P 423, rotated, or the plate to be cut close to the said second side 424 can be arranged in such a way P, 46 on said second side 424 attack adjustment that said is rotated.

Then stop adjustment 46 secured along said recliner rod is said with respect to the measure of the reference side of the panel for cutting 42 P is obtained by the reference body.

Then the movable part 2 is in the direction of X-axis 23 moves said work surface, and said from said movable part is cut by the blade 23 driven plate P in mitre.

Instead a oblique cut is effected with angle α be desired, and the reference side of the plate P, whose dimension is to retain, (see Figure 7) is the side A, so 46 is rotated on said first side and said attack attitude 42 along the rod blocked on said first side, wherein said measure of said side A of the slab to be sliced is selected by said reference body P.

Afterwards, said first slide pin 42 is coupled with said 44 positioning staff , while said second pin remains decoupled.

positioning staff 42 with said angle a is the said Is is greater than 0° executes the exceeds, said first guide has such a shape 431 that said rotation about said angle α and a displacement positioning staff 42, in other words a rotary and translational movement, by the sliding of the said setting pin on said elongated slot of said positioning staff , , wherein the edge of said recliner rod the intersection C not.

In particular, moves said positioning staff 42, rotates by α with the desired angle, parallel to itself with respect to said angle a, in such a way that the of the 423 42 reference staffreference bodies of said first side of said defined measure, with respect to this reference 0' retain becomes constant.

In this manner one moves said movable part in the direction of X-axis 23 said work surface, so the plate P is cut along said side carbon.

If on the contrary, it is required, with the angle α to perform an oblique cut, and the reference side of the plate P, whose dimension is to be retained, the side (see Figure 8) is B, said 46 stop adjustment is rotated on the second side 424 reference bodies of said first side and with respect to the to the blocked counted degree, wherein said measure of said side B of the slab to be sliced is chosen P.

This said slide pin 42 is coupled with said 45 positioning staff then, while said second pin 45 remains decoupled. positioning staff 42 around said angle a is Is said, of greater than 0° is exceeds performs, so said first guide 431 this time has such a shape that said positioning staff 42 rotation about said angle α and a displacement, in other words a rotational and translatory motion, in such a way that the edge of said adjustment rod not the intersection C.

In particular, in this case said positioning staff 42 moves, it rotates by α with the desired angle, parallel to itself, in such a way, as a function of said angle α that the of the 423 42 reference staffreference bodies of said first side with respect to said reference of said 0' level is held constant defined.

In this manner, one moves said movable part in the direction of X-axis 23 said work surface, the plate P is cut along said side carbon.

As reword, 431 and 432 are of the guides the shape, the arrangement of the scales 42 423 and 424 of the metric on the sides positioning staff mounted, and the shape of the bottom 42 positioning stafflong slot generated with respect to the, in which the setting pin slide can move or retain, configured in such a manner that it 424 423 reference bodies of said first and second side by the said reference staff 42, with respect to the respective intersections 0' and 0" on the line or cutting plane T of the work surface 2 defined amount, by passing therefore the dimensions of the points on the sides of the 2 by the line of intersection T of the work surface 42 retains positioning staff , when said positioning staff 42 is rotated.

A advantage of the present invention is that it allows the oblique cut a plate, each side can be taken after the comfort of the operator than measuring reference , wherein it is in stop or at one or the other side of the can be approximated positioning staff.

Another advantage of the present invention is that the operator must remain stationary, if he chooses, the plate in abutment on the one or other side of the to approach positioning staff in such a way that the productivity of the machining operations on is increased.

The present invention has been described but not restrictive purposes for illustrative , according to their preferred speech, but it must be understood that variants and/or changes can be made by the person skilled in the art, without the corresponding scope of protection is defined to leave therefor, as drawn up by the attached claims.