MACHINE FOR PROCESSING A SINGLE PIECE

Description

DESCRIPTION Attached to a patent application for an INDUSTRIAL INVENTION having by title “MACHINE FOR PROCESSING A SINGLE PIECE” On behalf of: SCM GROUP SpA Via Emilia 77 47921 RIMINI RN ******* The present invention relates to a machine for processing a piece. By way of example and not limitation, the present invention relates to: a woodworking machine, and in particular a machine 5 of the “vertical drilling machine” type. As is known, machines for processing a piece, for example a wooden panel, they include a casing comprising four walls lateral ones defining a containment volume. On at least one of these side walls a system of 10 insertion through which the workpiece is inserted into the containment volume. By way of example and not limitation, in processing machines of wood, and in particular in vertical drilling machines, the system of Insertion typically includes an input conveyor, e.g. 15 a conveyor belt or a motorized roller or wheel conveyor, arranged perpendicularly to the crankcase wall on which the system is mounted insertion is done. The input conveyor is configured for allow insertion and subsequent advancement of the piece within the containment volume. 20 Furthermore, the insertion system comprises at least one panel of support placed near the input belt and configured for support the piece to be worked on while it advances on the input conveyor. The machines known to date also include a machining head arranged in the containment volume and configured to retain and move a tool in order to perform a machining operation on the piece. The known machines also include a tool magazine 5 arranged in the containment volume and configured to house a plurality of tools selectively removable from the machining head. In known machines, the tool magazine is located near a internal surface of a side wall. To control the machine, for example to control a 10 movement of the machining head and / or advancement of the workpiece, known machines include a control unit, e.g. a computer, applied, for example, to the same side wall of the crankcase on which the insertion system is made. In this way, an operator can act on the control unit to control the machine and check, at 15 at the same time, the processing of the piece and / or its advancement within the volume of containment. In order to carry out maintenance and / or inspection of the head of machining and / or tool storage, known machines include also an entrance door usually made on a side wall 20 of the casing adjacent to the one on which the tool magazine is applied. In this case situation, when there is a need to access the volume of containment to inspect and / or perform maintenance or a any operation on the machining head and / or on the warehouse tools, an operator opens the entrance door and accesses the volume of 25 containment. Disadvantageously, although the presence of the entrance door allows the operator access to the containment volume, it does not allow the operator to reach easily and conveniently the tool magazine as well, the latter being arranged laterally 30 from the entrance door. Furthermore, entry to the containment volume is sometimes difficult to due to the presence of cables and wires connecting the control unit to the various components of the machine, and by the presence of the head of workmanship and the structure that supports it. The technical task of the present invention is therefore to 5 to make available a machine for the processing of a piece that is able to overcome the drawbacks that have emerged from the prior art. The aim of the present invention is therefore to provide provision of a machine for processing a piece that allows easy access to the containment volume, and in particular to the 10 tool magazine, by one operator. The specified technical task and the specified purposes are essentially achieved by a machine for processing a piece comprising the technical characteristics set out in one or more of the attached claims. dependent claims correspond to possible embodiments 15 of the invention. In particular, the specified technical task and the specified purposes are achieved by a machine in accordance with the present invention. The machine comprises a casing comprising a first pair of walls parallel and opposite to each other, and a second pair of walls between 20 of them parallel and opposite and cooperating with the first pair for delimit a containment volume. The first and second pair of walls delimit a volume of square section containment. Alternatively, the first and second pair of walls delimit a 25 rectangular section containment volume. The machine also comprises at least one machining head arranged in the containment volume and configured to hold and move a tool in order to perform a machining operation on the piece. The machine also includes an access door made on a 30 first wall of the first pair of walls and configured to allow a access to the containment volume. In other words, the access door allows an operator to access to the containment volume. The machine also includes a tool magazine arranged in the volume containment and configured to house a plurality of tools 5 selectively pickable from the processing head. Preferably, the tool magazine is applied to a first wall of the second pair of walls so as to be adjacent to the door access. In accordance with one aspect of the invention, a first wall of the second 10 pair of walls includes a portion movable in translation along a translation axis perpendicular to the first pair of walls and / or mobile in rotation around an axis of rotation. Preferably, the axis of rotation is perpendicular to a floor on on which the machine rests. 15 The portion is movable between an open position, in which it allows a further access to the containment volume, particularly in the vicinity of the tool magazine, and a closed position, in which it prevents further access. According to one embodiment, the portion is movable. 20 only in translation along the translation axis. In this situation, the portion slides along the translation axis so as to allow or prevent further access to the containment volume. Preferably, in this embodiment, the portion, to pass from the closed position to open position, slides from the second wall 25 of the first pair of walls towards the first wall of the first pair of walls along the translation axis. In accordance with a further embodiment, the portion is mobile only in rotation around a perpendicular axis of rotation to the walls of the first pair of walls. In this situation, the portion is 30 movable tilting to allow further access to the containment volume. In accordance with a further embodiment, the portion is mobile only in rotation around an axis of rotation perpendicular to a floor on which the machine rests. In this situation, the portion It can be rotated like a door to allow further access to the 5 containment volume. In the preferred embodiment, the axis of rotation is perpendicular to the floor and the portion completes, between the closed position and the position of opening, a rototranslational motion in which a movement in translation of the portion is simultaneous with a movement in 10 rotation of the portion. In other words, in the preferred embodiment, the portion is movable in translation and, at the same time, it is mobile in rotation so as to perform a roto-translation movement between the closed position and the position of opening. 15 Preferably, the machine further comprises a control unit, e.g. example made in the form of a computer, configured to handle the operations performed by the machine, such as handling of the machining head. Preferably, the control unit is coupled to the portion so as to 20 be jointly movable with the portion itself. In accordance with an aspect of the present invention, the machine It also includes a constraint system configured to guide in rotation translation of the portion. Preferably, the constraint system is arranged above and / or below 25 of the portion. In accordance with an embodiment, the system of constraints is arranged above the portion while below it, that is, in proximity of its lower edge facing the floor, the portion includes a ball or skate or wheel or the like configured to accompany 30 the portion in its roto-translation motion avoiding any sliding on the floor. In accordance with an alternative embodiment, the constraint system is placed above the portion but it has a height (measured along the axis of rotation) such that its lower edge is raised from the floor to avoid it sliding. 5 In accordance with a further alternative embodiment, the system of constraints are placed below the portion, and in particular it is located near the bottom edge of the portion. Preferably, the constraint system comprises at least one linear guide configured to guide the portion in translation. 10 Preferably, the at least one guide runs parallel to the first wall of the first pair of walls. The constraint system also includes at least one rotary joint interposed between the portion and the at least one guide and configured for allow the portion to rotate around the axis of rotation. 15 Preferably, the revolving joint is made in the form of a pin to which the portion is hinged. Preferably, the revolving joint is coupled to the at least one guide in so that you can slide along at least one guide itself. Preferably, the at least one guide is arranged above the first 20 wall of the first pair. In this situation, the revolute joint is coupled to an upper edge of the portion. In accordance with an embodiment, the system of constraints comprises furthermore a further guide perpendicular to the at least one guide. In this situation, the at least one guide and the further guide have an end in 25 common defining a connection point. In other words, the at least one guide and the further guide form a right angle whose connection point is essentially the vertex. Preferably, the additional guide is arranged above the portion. The additional guide is also configured to guide the translation of the 30 portions. Preferably, the constraint system also includes an additional joint revolving ring placed between the portion and the further guide. The additional rotary joint is configured to allow rotation of the portion. Preferably, the additional rotary joint is made in the form of a 5 pin to which the portion is hinged. Preferably, the additional rotary joint is coupled to an edge top of the portion. Preferably, the additional revolving joint is coupled to the additional guide so that you can slide along the further guide itself. 10 In accordance with one embodiment, the additional rotary joint is movable sliding along the further guide while the at least one revolving joint is mobile sliding along at least one guide. In more detail, in the closed position, the at least one revolving joint is close to the point of connection (substantially coinciding with it) and the further joint 15 rotoidal is arranged along the further guide in a distal position from the connection point so that the portion is perpendicular to the walls of the first pair of walls. When moving from the closed to the open position, at least one revolving joint slides along the at least one guide away from the 20 connection points. At the same time, the additional rotary joint slides along the additional guide approaching the connection point. In this situation, while the two revolving joints slide along their respective guides, the portion rotates around the axis of rotation until it settles in the open position. In the open position, the at least one joint 25 rotoidal is arranged along the at least one guide in a distal position from the connection point and the further revolving joint is brought closer to the connection point connection so that the portion defines, with respect to a plane perpendicular to the walls of the first pair of walls, a predetermined corner. 30 Preferably, the aforementioned predetermined angle is between 45° and 90°. More preferably, in the open position, the additional rotary joint is brought to the connection point and said predetermined angle is equal to 90°. In accordance with an aspect of the invention, the further guide comprises a 5 fixed first portion and a second portion featuring a first end inserted into the first portion and a second end connected to the additional rotary joint. The second portion slides between a retracted position in which it is inserted within the first portion to bring it closer the further rotary joint to the first portion, and an extracted position, in 10 which is extracted from the first portion to bring the further rotary joint closer at the connection point. In other words, the further guidance turns out to be a substantially more comprehensive guidance. telescopic in which, when the portion is in the closed position, the second portion of the additional guide is in the retracted position, while, 15 when the portion is in the open position, the second portion of the additional guide is in the pulled out position. By doing this the additional revolving joint slides along the additional guide thanks to the extraction and retraction motion of the second portion within the first portion of the further guide. 20 In accordance with a further alternative embodiment, the further joint revolving comprises a bar having a first end hinged in a connection point of the at least one guide and a second end hinged to the portion. Preferably, the connection point coincides with one end 25 of at least one guide. In accordance with this embodiment, the portion is constrained to the at least one guide by means of the at least one sliding rotary joint along the at least one guide and by means of the bar that rotates around the point of connection. By doing so, when the portion is moved between the 30 closing position and opening position, while at least one joint rotary slides, along at least one guide, approaching or moving away from the connection point, the bar rotates, around the point of connection, in one direction or the opposite direction to accompany the portion in its rotational translation motion. In the closed position, the at least one rotary joint is close to the 5 connection point and the bar is rotated to be parallel at least one guide so that the portion is perpendicular to the walls of the first pair of walls. In the open position, however, the at least a rotary joint is arranged along the at least one guide in a position distal from the connection point and the bar is rotated so that it is arranged 10 substantially perpendicular to the walls of the first pair of walls so that the portion defines, with respect to a plane perpendicular to the walls of the first pair of walls, a predetermined corner. Preferably, this predetermined angle is equal to 90°. 15 Advantageously, by realizing on the first wall of the second pair of walls a movable portion, it is possible to access the volume of containment in a position closer to that in which the tool warehouse making not only access, but also any maintenance and inspection operations, easier and more convenient. 20 Furthermore, the rototranslation movement of the portion allows for obtain access to the containment volume that is both large and and free of cables and wires that hinder the entry of an operator but which avoids, being the control unit integral with the portion, to cause a tear and / or a break in the cables and / or wires connecting the control unit to the 25 various components of the machine. In accordance with an aspect of the invention, the machine further comprises a motor coupled to the portion to move it automatically the portion itself between the open position and the closed position. The motor can be coupled above or below the 30 portions. In the preferred embodiment, the motor is coupled below the portion. In accordance with a further alternative embodiment, the portion may be moved between the closed and open positions in manual way. 5 In accordance with a further alternative embodiment, the portion may be moved between the closed and open positions in semi-automatic manner. Preferably, the machine also includes a rack developing perpendicularly to the walls of the first pair of walls. 10 Preferably, the machine also includes a guide shoe hinged to the portion and coupled to the rack. The guide shoe It can be activated by the motor sliding along the rack. In this way situation, thanks to the engine, the guide shoe is “pushed or pulled” along the rack dragging with it the portion to which it is hinged. So 15 doing, thanks to the combined action of the engine and the constraint system, the portion is moved in roto-translation between the closed position and the opening position. In the preferred embodiment, the rack rests on the floor while the guide shoe is hinged to the portion near the 20 lower edge of the portion itself. Thus, in use, when the portion passes from the position of closing to opening, the guide shoe slides along the rack and since it is hinged to the portion, the guide shoe allows also a rotation of the portion around the axis of rotation. 25 As stated above, according to one aspect of the present invention, the machine includes an access door to access the volume of containment. Preferably, such access door comprises a first leaf hinged to a lateral edge of the portion, preferably in 30 correspondence of the at least one rotary joint, and movable in solidarity with the portion and a second door hinged to the first wall of the first pair of walls, preferably at the edge between the first wall of the first pair of walls and the second wall of the second pair of walls. In other words, the access door turns out to be a double door. 5th door in which, in use, the first door rotates around the side edge of the portion, while the second door rotates around a parallel axis to the axis of rotation around which the portion rotates. In the preferred embodiment, the machine further comprises a locking mechanism that can be activated between the first and second door 10 constrain the doors to rotate around a defined hinge axis from the oppositely facing side edges of the doors in such a way that at one roto-translation movement of the portion from the position of the closing and opening times correspond to a rotation of the doors around the hinge axis such as to cause an overlap at least 15 partial of the first beat on the second beat. In use therefore, when the portion is made to rotate-translate to pass from the closed to the open position, the first door, being hinged to the portion and to the second door, it rotates around the edge lateral of the portion and around the hinge axis and is pushed in 20 approaching the second beat. In other words, the fact that the first door is hinged to the portion and the presence of the locking mechanism makes the access door a folding door that closes when the portion passes through closed position to open position. 25 Preferably, when the movable portion is in the open position, the the first and second leaf define an angle between them between 60° and 20° preferably equal to 40°. Further features and advantages of the present invention will appear. clearer from the indicative, and therefore non-limiting, description 30 of an embodiment of a machine for processing a piece. This description will be presented below with reference to the united drawings, provided for indicative purposes only and therefore not limiting, in which: - Figures 1-3 show a perspective view of a shape realization of a machine in accordance with the invention in different 5 operating configurations; - Figure 4 shows a perspective view of a further form construction of a machine in accordance with the invention. With reference to the attached figures, “M” indicates a machine for machining a piece. 10 By way of example and not limitation, the attached figures show a woodworking machine, and in particular, a woodworking machine vertical drilling machine type. The “M” machine comprises a casing comprising a first pair of walls 100a, 100b parallel and opposite each other. 15 The casing also comprises a second pair of walls 200a, 200b between their parallel and opposite and cooperating with the first pair of walls 100a, 100b to delimit a containment volume “V”. Preferably, the crankcase has, in cross-section, a substantially square. 20 The “M” machine also includes at least one “T” machining head arranged in the containment volume “V” and configured to retain and move a tool in order to perform a machining operation on the piece. The “M” machine also includes a “U” tool magazine arranged in the containment volume “V” and configured to house a plurality of 25 tools selectively removable from the “T” machining head. In use, the “T” machining head can be moved within the volume of “V” containment in order to operate on the piece and / or for remove / deposit tools from the tool magazine “U”. The “M” machine also includes an access door made on a 30 first wall 100a of the first pair of walls 100a, 100b and configured to allow access, for example to an operator, to the volume of “V” containment. In the two embodiments illustrated in figures 1-3 and 4 respectively, the access door comprises a first and a second leaf 300a, 300b and essentially defines the entire first wall 100a of the first 5 pair of walls 100a, 100b. In the two illustrated embodiments, the first leaf 300a is hinged to a portion “P1”, and in particular to one of its lateral edges, of a first wall 200a of the second pair of walls 200a, 200b, while the second door 300b is hinged at the corner between the 10 first wall 100a of the first pair of walls 100a,100b and a second wall 200b of the second pair of walls 200a, 200b. The “U” tensile magazine extends close to and parallel to the first wall 200a of the second pair of walls 200a, 200b. Preferably, the access door is adjacent to the “U” tool magazine, 15 ie the “U” tool magazine is arranged laterally with respect to the door of access. In the embodiments shown in the attached figures, the first wall 200a of the second pair of walls 200a, 200b comprises a portion fixed “P2”. 20 Preferably, as shown in the attached figures, on the fixed portion “P2” is fitted with a system for inserting the piece into the “M” machine comprising a movement element “N”, for example a belt conveyor, a belt, a roller conveyor and the like, configured to gradually insert the piece placed there into the volume of 25 containment “V”. The workpiece insertion system also includes a worktable support “S” developing from the movement element “N” and configured to allow for support and / or support of the workpiece work as it is advanced towards the containment volume 30 “V”. Preferably, the support platform “S” is equipped with a plurality of rollers configured to facilitate the sliding without scraping of the piece on the “S” support platform. In accordance with one aspect of the invention, the first wall 200a of the second pair of walls includes a movable portion “P1” in 5 translation along a translation axis “A” perpendicular to the first pair of walls 100a, 100b and / or mobile rotating around an axis of rotation “R”. The “P1” portion is movable between an open position (figure 3), in which allows further access to the “V” containment volume, in particular 10 near the tool magazine “U”, and a closed position (figure 1), which prevents further access. In the case of the illustrated embodiments, the portion “P1” is movable in approaching and moving away from the fixed portion “P2” so that, in the closed position, the “P1” portion is coplanar to the portion 15 fixes “P2” and cooperates with it to define the first wall 200a of the second pair of walls 200a, 200b while, in the open position, the “P1” portion is moved away from the fixed “P2” portion in such a way that the additional space is defined between the portion “P1” and the fixed portion “P2” of access. 20 In accordance with one embodiment, the portion “P1” is movable only in translation along the translation axis “A”. In this situation, the machine “M” includes a guide, preferably arranged above the “P1” portion, and developing perpendicularly to the first pair of walls 100a, 100b. The guide is configured to guide in 25 translation of the “P1” portion. In accordance with a further embodiment, the portion “P1” is can only be moved by rotation around an axis of rotation perpendicular to the first pair of walls 100a, 100b. In this situation, the machine “M” includes a guide arranged above the portion 30 “P1” defining the axis of rotation and the “P1” portion rotates around it. In accordance with a further embodiment, the portion “P1” is can only be moved by rotation around an axis of rotation perpendicular to a floor on which the “M” machine rests. In the preferred embodiment, however, the portion “P1” is movable both in both translation and rotation. 5 In the preferred embodiment, the axis of rotation “R” is perpendicular to the floor on which the “M” machine rests and the movement in translation is simultaneous with rotation movement in a way that the portion “P1” performs, between the closing position and the starting position opening, a rototranslational motion. 10 With reference to the illustrated embodiments, the “M” machine includes a system of constraints configured to drive in roto-translation the “P1” portion. The constraint system can be arranged above and / or below the portion “P1”. 15 In the illustrated embodiments, the constraint system is arranged above of the “P1” portion. The constraint system comprises at least one 400a linear guide configured to guide the “P1” portion in translation. Preferably, the at least one guide 400a runs parallel to the 20 first wall 100a of the first pair of walls 100a, 100b. The constraint system also includes at least one “E1” rotary joint interposed between the portion “P1” and at least one guide 400a. The joint “E1” rotary is configured to allow the rotation of the portion “P1”. 25 In the illustrated embodiments, the at least one guide 400a is arranged above the first wall 100a of the first pair of walls 100a, 100b. In the illustrated embodiments, the at least one rotary joint “E1” is made in the form of a coupled pin, preferably hinged, 30 to one edge of the portion “P1” facing the at least one guide 400a. Referring now to the embodiment shown in figures 1-3, the constraint system also includes an additional guide 400b perpendicular to at least one guide 400a and configured to guide in translation of the “P1” portion. The at least one guide and the further guide 400a, 400b have an end in 5 common defining a connection point “C”. In other words, the at least one guide and the further guide 400a, 400b they define a right angle between them of which the connection point “C” is the summit. The constraint system also includes an additional “E2” rotary joint 10 placed between the “P1” portion and the additional “400b” guide. The additional rotary joint “E2” is configured to allow rotation of the “P1” portion. As shown in figures 1-3, the additional rotary joint “E2” is made in the form of a coupled pin, preferably hinged, to the 15 same edge of the portion “P1” to which at least one joint is coupled revolving “E1”. In the embodiment of figures 1-3, the at least one rotary joint “E1” and the additional rotary joint “E2” can be moved in sliding respectively along the at least one guide 400a and along the further guide 20 400b and are hinged to the “P1” portion. In this situation, as shown in figure 1, when the portion “P1” is in closed position, the at least one rotary joint “E1” is arranged in proximity to the connection point “C” and, preferably, is arranged in so as to substantially coincide with this connection point “C”, 25 while the additional rotary joint “E2” is arranged along the additional guide 400b in a distal position from the connection point “C”. In this situation, the portion “P1” is arranged perpendicularly to the first pair of walls 100a, 100b. When moving the portion “P1” from the position of 30 closing to the opening one, the at least one rotary joint “E1” and the further one rotary joint “E2” are moved along the respective guides 400a, 400b. In particular, the at least one revolving joint “E1” is made to slide along at least one guide 400a away from the point of connection “C” while the additional revolving joint “E2” is made slide along the further guide 400b approaching the point of 5 connection “C”. In this situation, the “P1” portion is dragged into translation along the guides 400a, 400b and, at the same time, rotates around the rotary joints “E1”, “E2” to roto-translate in order to arrange themselves substantially parallel to walls 100a, 100b of the first pair of walls 100a, 100b. 10 In the embodiment of figures 1-3, the portion “P1” in the position of opening is arranged parallel to the second wall 100b of the first pair of walls 100a, 100b (figure 3). In this situation, the further revolving joint “E2” is in a position close to the point of connection “C” while the at least one revolving joint “E1” is moved away from the 15 connection point “C” along at least one guide 400a. Always with reference to the embodiment of figures 1-3, the at least one Guide 400a is made in the form of a single, rigid rail. The additional guide 400b could also be realized in the form of a single and rigid track. 20 Alternatively, as shown in the embodiment of Figures 1-3, the further guide 400b comprises a first fixed portion 400b' and a second portion 400b'' having a first end inserted into the first portion 400b' and a second end connected to the further “E2” revolving joint (figure 2). 25 The second portion 400b'' is slidable between a retracted position where it is inserted within the first portion 400b' to bring the further joint closer rotoidal “E2” at the first portion 400b', and an extracted position, in which it is extracted from the first portion 400b' to bring the further joint closer revolving “E2” at connection point “C”. 30 In use therefore, when the “P1” portion is in the closed position, the second portion 400b'' is in the retracted position so that the additional rotary joint “E2” is spaced from the connection point “C”. In this situation, the at least one revolving joint “E1” is placed in proximity of the connection point “C” and the portion “P1” is perpendicular to the walls of the first pair of walls 100a, 100b. 5 When the “P1” portion is moved from the closed position at the open position, the second portion 400b'' is progressively brought into the extracted position so that the additional rotary joint “E2” is progressively brought closer to the point of connection “C” while the at least one revolving joint “E1” is slid 10 along at least one guide 400a away from the point of connection “C”. Being that the at least one revolving joint “E1” and the further revolving joint “E2” allow the rotation of the portion “P1”, when at least one revolving joint “E1” and the additional revolving joint “E2” are 15 moved, the portion “P1” is dragged into translation and simultaneously rotates. Preferably, as shown in figure 3, when the “P1” portion is in opening position, and thus the second portion 400b'' of the further guide 400b is in the extracted position, the additional rotary joint “E2” is 20 protruding from at least one guide 400a. With reference to the embodiment of figure 4, it shows a “M” machine substantially identical to the “M” machine shown in the figures 1-3. The “M” machine shown in figure 4 differs in fact from the machine “M” shown in figures 1-3 mainly for how it is 25 the additional rotary joint “E2” was created. In this embodiment, in fact, the additional rotary joint “E2” includes a bar 500 having a first end hinged at a point of connection “C” of at least one guide 400a and a second end hinged to the “P1” portion. 30 Preferably, the above connection point “C” coincides with one end of the at least one guide 400a. Even more preferably, as shown in figure 4, also in this form “M” version the machine includes an additional 400b guide perpendicular to the at least one guide 400a and connected to it at the point of connection “C”. 5 In accordance with this embodiment, when the portion “P1” is in closed position, the at least one rotary joint “E1” is arranged in proximity of the connection point “C” while the 500 bar is rotated in so as to be arranged perpendicularly to the walls of the first pair of walls 100a, 100b. 10 When moving the portion “P1” from the position of closing to the opening one, at least one revolving joint “E1” is made slide along the at least one guide 400a away from the point of “C” connection while the 500 bar rotates around the connection point “C” so as to arrange itself along at least one guide 400a. In this situation, 15 the portion “P1” rotates and translates so as to arrange itself substantially parallel to walls 100a, 100b of the first pair of walls 100a, 100b. In accordance with an aspect of the present invention, the “M” machine It also includes a motor coupled to the “P1” portion for 20 automatically move the “P1” portion between the position of opening and closing position. Alternatively, the “P1” portion could be moved in manual or semi-automatic manner. Preferably, the engine is placed close to the floor on which the 25 “M” machine rests. In accordance with the illustrated embodiments, the “M” machine comprises also a 600a rack developing perpendicularly to the walls of the first pair of walls 100a, 100b. Preferably, the rack 600a rests on the floor on which it is 30 the “M” machine was placed. Preferably, the “M” machine also includes a guide shoe 600b hinged to the “P1” portion and coupled to the rack 600a. The 600b guide shoe is activated by the motor sliding along the 600a rack. In more detail, in use, as shown for example in figures 2 and 3, 5 the guide shoe 600b is moved by the motor in sliding along the rack 600a. The guide shoe 600b being connected, and in hinged part, to the “P1” portion, also the “P1” portion is moved so as to be movable between the closed position and the open position. 10 In accordance with a further aspect of the present invention, the machine “M” also includes a locking mechanism that can be activated between the first and the second leaf 300a, 300b of the access door to constrain the doors 300a, 300b rotating between them around a hinge axis “B” defined by the counter-facing side edges of the doors 300a, 300b in such a way 15 such that a movement of the portion “P1” from the position of the closing and opening times correspond to a rotation of the doors of 300°, 300b around the hinge axis “B” such as to cause an overlap at least partial of the first leaf 300a on the second leaf 300b. Referring for example to figures 1-3, at the moment in which the portion 20 “P1” switches from the closed to the open position, the mechanism of locking is activated. In this situation, the first leaf 300a, being hinged to the “P1” portion, it moves solidly to the portion “P1” along the at least one guide 400a. During this movement, the first door 300a being hinged to the portion 25 “P1” and the second leaf 300b in the hinge axis “B”, the first leaf 300a is bound to fold onto the second leaf 300b. In other words, the first and second beat 300a, 300b define, when the locking mechanism is activated, a door of the type bellows in which the first flap 300a is at least partially foldable on the, 30 or at least partially superimposable, to the second leaf 300b. In the preferred embodiment, when the movable portion “P1” is in opening position, the first and second leaf 300a, 300b define between them an angle α between 20° and 60°, preferably equal to 40°. The present invention achieves the intended purposes by eliminating the drawbacks emerging from the prior art. 5 In particular, thanks to the possibility of moving the “P1” portion, it is It is possible to access the containment volume “V” not only from the door access but also in a further access close to the tool warehouse “U” making maintenance and / or inspection operations and the like more simple and easy. 10 Furthermore, the roto-translation movement of the “P1” portion allows to access the containment volume “V” without the cables or wires that connect the control unit to the various parts of the machine “M” must be disconnected in order to access the containment volume “V” and / or suffer excessive stretching or even breakage THE AGENCY Eng. Gianluca GALLO

Claims

CLAIMS 1. Machine (M) for machining a workpiece comprising: - a casing comprising a first pair of walls (100a, 100b) parallel and opposite to each other, and a second pair of walls (200a, 200b) parallel and opposite to each other and cooperating with said first pair (100a, 100b) to delimit a containment volume (V); - at least one machining head (T) arranged in the containment volume (V) and configured to hold and move a tool in order to perform a machining operation on said workpiece; - a tool magazine (U) arranged in the containment volume (V) and configured to house a plurality of tools that can be selectively removed from said machining head; - an access door made on a first wall (100a) of the first pair (100a, 100b) and configured to allow access to said containment volume (V);and wherein a first wall (200a) of the second pair of walls comprises a portion (P1) movable in translation along a translation axis (A) perpendicular to the first pair of walls (100a, 100b) and / or movable in rotation around a rotation axis (R), said portion (P1) being movable between an open position, in which it allows further access to said containment volume (V), in particular in the vicinity of said tool magazine (U), and a closed position, in which it prevents said further access.; 2. Machine according to claim 1, wherein said rotation axis (R) is perpendicular to a floor on which said machine (M) rests and wherein said translational movement is simultaneous with said rotational movement so that said portion (P1) performs a rototranslation motion between the closed position and the open position.

3. Machine according to claim 1 or 2, comprising a constraint system configured to guide the portion (P1) in roto-translation, said constraint system being arranged above and / or below said portion (P1).

4. Machine according to claim 3, wherein said constraint system comprises: - at least one linear guide (400a) configured to guide said portion (P1) in translation, said at least one guide (400a) developing parallel to the first wall (100a) of the first pair of walls (100a, 100b); - at least one rotary joint (E1) interposed between the portion (P1) and said at least one guide (400a), said rotary joint (E1) being configured to allow rotation of said portion (P1) around said rotation axis (R).

5. Machine according to claim 4, wherein said constraint system further comprises: - a further guide (400b) perpendicular to the at least one guide (400a) and configured to guide said portion (P1) in translation, the at least one guide and the further guide (400a, 400b) having a common end defining a connection point (C); - a further rotary joint (E2) interposed between the portion (P1) and said further guide (400b), said further rotary joint (E2) being configured to allow the rotation of said portion (P1).

6. Machine according to claim 5, wherein said further guide (400b) comprises a first fixed portion (400b') and a second portion (400b'') having a first end inserted into said first portion (400b') and a second end connected to said further rotary joint (E2), said second portion (400b'') being slidable between a retracted position in which it is inserted into said first portion (400b') to bring said further rotary joint (E2) closer to the first portion (400b'), and an extracted position, in which it is extracted from the first portion (400b') to bring said further rotary joint (E2) closer to the connection point (C). 61.S3196.12.IT.140 Ing. Gianluca GALLO (Registered no. 1649 B) 7. Machine according to claim 4, wherein said constraint system comprises a further revolving joint (E2) configured to permit rotation of said portion (P1), said further revolving joint (E2) comprising a bar (500) having a first end hinged at a connection point (C) of said at least one guide (400a) and a second end hinged to the portion (P1).

8. Machine according to any of the preceding claims, comprising a motor coupled to said portion (P1) to automatically move said portion (P1) between the open position and the closed position.

9. Machine according to claim 8, comprising: - a rack (600a) extending perpendicularly to the walls of the first pair of walls (100a, 100b); - a guide shoe (600b) hinged to said portion (P1) and coupled to said rack (600a), said guide shoe (600b) being activated by said motor to slide along said rack (600a).

10. Machine according to any of claims 4 to 9, wherein said access door comprises a first leaf (300a) hinged to a lateral edge of the portion (P1), preferably in correspondence with said at least one rotary joint (E1), and movable integrally with said portion (P1) and a second leaf (300b) hinged to the first wall (100a) of the first pair of walls (100a, 100b) 11. Machine according to claim 10, comprising a locking mechanism that can be activated between the first and second leaf (300a, 300b) to constrain said leaves (300a, 300b) to rotate around a hinge axis (B) defined by the opposite-facing lateral edges of said leaves (300a, 300b) in such a way that a movement of said portion (P1) from the closed position to the open position corresponds to a rotation of the leaves (300a, 300b) around the hinge axis (B) such as to cause at least a partial overlapping of the first leaf (300a) on the second leaf 300b). 61.S3196.12.IT.140 Eng. Gianluca GALLO (Registered no. 1649 B) 12. Machine according to claim 11, when the mobile portion (P1) is in the open position, said first and second leaf (300a, 300b) define between them an angle (α) between 20° and 60°, 5 preferably equal to 40°.