Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B28—WORKING CEMENT, CLAY, OR STONE
  • B28D—WORKING STONE OR STONE-LIKE MATERIALS
  • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
  • B28D1/02—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing
  • B28D1/04—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor by sawing with circular or cylindrical saw-blades or saw-discs
  • B28D1/043—Gantry type sawing machines
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B28—WORKING CEMENT, CLAY, OR STONE
  • B28D—WORKING STONE OR STONE-LIKE MATERIALS
  • B28D1/00—Working stone or stone-like materials, e.g. brick, concrete or glass, not provided for elsewhere; Machines, devices, tools therefor
  • B28D1/003—Multipurpose machines; Equipment therefor

Definitions

• the present invention generally finds application in the field of machine tools and namely relates to a highly versatile machine tool for working stone materials such as stone, marble, granite, conglomerate stone and concrete materials and the like, particularly for multiaxial working of slabs of stone materials.
• Machine tools are known, which are adapted to perform various processing operations on semi-finished products made of stone materials, such as slabs or blocks of stone, marble, granite, conglomerate stone and concrete materials and the like.
• Such processing operations performed by such machines include, for example, cutting, drilling, dressing, contouring, chamfering or the like and may require handling, loading/unloading and transfer of the products being processed from one work area to another.
• Such machines generally have a gantry-type support structure, of the type comprising a pair of floor-mounted uprights adapted to support a main beam.
• the latter supports a main carriage, which is adapted to be moved over a horizontal work table on which a product to be processed is laid.
• the main carriage may have one or more tool-carrying heads secured thereto, which comprise at least one tool designed to interact with the product to be processed or to promote displacement thereof within the work area.
• machines which comprise a stationary work table and a secondary beam connected to the carriage and able to rotate about a vertical axis of rotation.
• the secondary beam in turn slidably supports a slide, with a processing head attached thereto.
• a first drawback of this arrangement is that the provision of a single processing head considerably limits the throughput of the machine.
• IT1 2471 80B1 discloses a multiaxial machine tool having all the features of the preamble of claim 1 , particularly a primary beam, a carriage sliding along the primary beam, a secondary beam associated with the carriage and rotating about a vertical axis, one or more tool-carrying head slidably mounted to the secondary beam, and a support table for the material being processed.
• US201 1 /0303209 discloses a multiaxial machine tool in which a primary beam is slidably mounted to guides perpendicular to the beam, and a carriage slides along the primary beam, and has associated therewith a secondary beam supporting a plurality of tool-carrying heads.
• the object of the present invention is to obviate the above drawbacks, by providing a multiaxial machine that is highly efficient and relatively cost-effective.
• a particular object of the present invention is to provide a multiaxial machine for working stone slabs and/or blocks that has improved versatility.
• a further object of the present invention is to provide a multiaxial machine that allows to reduce dead times, thereby increasing the throughput of the machine.
• Another object of the present invention is to provide a multiaxial machine that has a relatively simple and easily operable construction.
• Yet another object is to provide a multiaxial machine that allows various processing operations to be simultaneously performed on the product.
• the multiaxial machine has a considerably simplified construction, and allows various different working operations to be performed on the products, while affording easy removal of the head having respective working and handling purposes.
• FIGS. 1 and 2 are front and side perspective views respectively of a machine for working stone slabs of the invention
• FIGS. 3 to 7 are front views of the machine of FIG. 1 in different slab working sequences
• FIG. 8 is a side view of the machine of Fig. 1 ;
• FIGS. 9 to 1 1 are bottom perspective views of a first detail of Fig. 1 in different configurations
• FIG. 1 2 is a top perspective view of the first detail of Fig. 1 1 during a further working sequence.
• a multiaxial machine for working semi-finished products P made of stone materials such as slabs and/or blocks of stone, marble, granite, conglomerate concrete materials and the like which is generally designated by numeral 1 .
• the machine 1 of the invention comprises a primary beam 2 which extends along a substantially horizontal first axis Xi and has associated therewith first guide means 3 substantially parallel to the axis Xi, which consist, for instance, of a rail or a groove 3' formed on the top face of the beam 2.
• Sliding blocks 4 are provided at the longitudinal ends of the main beam 2, which are designed to slide along second guide means 5 consisting of a pair of rails 5' or tracks substantially parallel to a second axis X2 ,which is also substantially horizontal and perpendicular to the first axis Xi.
• a carriage 6 is slidably mounted to the primary beam 2, to slide along the guide or groove 3' that defines the first guide means 3.
• a secondary beam 7 extending along a substantially horizontal third axis X 3 is mounted below the carriage 6 and has third guide means 9 substantially parallel to the third axis X3.
• the secondary beam 7 is rotatably connected to the carriage 6 by means of a fifth wheel or a connecting plate 8, to rotate about a substantially vertical fourth axis X 4 .
• the third guide means 9 comprise one or more guides 9', which are fixed to one or both of the lateral faces 1 0 of the secondary beam 7.
• a single tool-carrying head 1 1 is slidably mounted to the third guide means 9 associated with the secondary beam 7.
• the assembly composed of the primary beam 2, the first guide means 3, the carriage 6, the secondary beam 7 and the tool-carrying head 1 1 is disposed over a support table 1 2 for the products being processed P, which comprises a fixed or movable surface 1 3 of a floor-mounted bed 13'.
• the secondary beam 7 is designed for removable installation of the tool-carrying head 1 1 and for removal and replacement thereof with one or more equal or different tool-carrying head 1 1 , i.e. having equal or different processing and/or handling tools 1 6.
• the head 1 1 is designed to carry a processing tool 1 6, selected from the group comprising cutting wheels or blades, e.g. as shown in FIG. 1 , water jets, e.g. as shown in FIG. 9, or suction cup or vacuum-operated handling tools 1 6', e.g. as shown in FIG. 2.
• the tool-carrying head 1 1 is cantilevered removably mounted on said third guide means 9, so as to allow the simultaneous mounting and sliding of multiple tool-carrying means 1 1 to one or both of the faces 1 0 of the secondary beam 7.
• the head 1 1 may be easily and quickly removed and replaced with another identical or different head, i.e. having equal or different handling tools, thereby providing added versatility to the machine, which may perform multiple processing operations while minimizing replacement dead times and the resulting down times.
• the second guide means 5 are fixed above the support table 1 2.
• the second guide means 5 consist of a pair of rails or tracks attached along the upper edges of anchoring means 15 consisting, for instance, of a pair of reinforced concrete or metal walls or uprights, which are substantially parallel to the second axis X2, secured to the floor and adapted to delimit a work area 14 with the bed 1 3'.
• the machine 1 comprises a plurality of tool-carrying head 1 1 , which are removably and slidably mounted along the third guide means 9 attached to one or both of the faces 1 0 of the secondary beam 7.
• two tool-carrying head 1 1 having the same disk-shaped tool 1 6 may be cantilevered mounted to one face 1 0 of the secondary beam 7, for simultaneous and coordinated processing of a slab P or block.
• two tool-carrying head 1 1 having the same suction-cup manipulator tool 1 6' may be cantilevered mounted on the other face 1 0 of the secondary beam 7, for simultaneous and coordinated handling of multiple slabs or strips P after cutting or processing.
• two tool-carrying head 1 1 having processing tools 16 may be cantilevered mounted to one of the lateral faces 1 0 of the secondary beam 7, and two suction cup handling tools 1 6' may be mounted to the other lateral face 1 0, for simultaneous processing and handling of slabs P lying on the work table 1 2.
• multiple tool-carrying head 1 1 having equal processing tools 1 6 may be cantilevered mounted to one or both of the lateral faces 10 of the secondary beam 7, to simultaneously form identical copies of patterns on the slab or block P.
• FIGS. 9 and 1 0 show a variant of the machine in which two heads 1 1 with disk-shaped processing tools 1 6 are mounted in cantilever fashion to one lateral face 1 0 of the secondary beam 7, whereas a first water-jet processing head and a suction cup handling head 1 6' are mounted to the other face.
• FIGS. 1 1 and 1 2 show a variant of the machine in which four heads 1 1 with disk-shaped tools 1 6 are mounted in cantilever fashion to one face of the secondary beam 7, and a pair of heads connected to a single suction cup handling tool 1 6' are mounted to the other face.
• the machine comprises drive means, not shown, for promoting controlled and independent movement of the various parts.
• first drive means e.g. screw and nut or rack and pinion assemblies, which act upon the carriage 6 for promoting controlled translation thereof along the first guide means 3 associated with the main beam 2
• second drive means similar to the first means, which act upon the main beam 2 for promoting its movement along the second guide means
• third drive means similar to the previous means, which act upon each of the tool-carrying head 1 1 for promoting separate and independent movement thereof along the third guide means 9.
• fourth drive means are provided, which act upon the fifth wheel 8 to promote controlled rotation of the secondary beam 7 about a vertical fourth axis X 4 .
• Each tool-carrying head 1 1 is mounted to the third guide means 9 through an appropriate support 17, which is basically composed of two portions, i.e. a first portion 18 basically consisting of a slide 1 8' adapted to be removably attached in cantilever fashion to the third guide means 9, and a second portion 1 9 designed to support at least one tool 1 6, 16' for processing and handling respectively.
• a first portion 18 basically consisting of a slide 1 8' adapted to be removably attached in cantilever fashion to the third guide means 9, and a second portion 1 9 designed to support at least one tool 1 6, 16' for processing and handling respectively.
• the first portion 18 may comprise one or more sliding bushings, not shown, which are designed for sliding engagement in the guides of the third guide means 9.
• the second portion 1 9 may comprise a connecting member for movable connection of the head 1 1 , to impart an additional degree of freedom thereto, in addition to the secondary beam 7.
• the second portion 19 may comprise a fork 1 9', as shown in all the figures excepting FIGS. 1 1 and 12, which is connected to the head 1 1 to move along a substantially vertical fifth axis X5, for height adjustment of the head.
• the second part may be connected to the head 1 1 by means of a pivot pin 20 which extends through a substantially horizontal sixth axis X 6 , for tilt adjustment of the head 1 1 and the tool 1 6 relative to the work surface of the product P.
• one member may be provided to accomplish both tasks.
• the machine 1 may comprise one or more first actuators, not shown, which are associated with the supports 1 7 for promoting translation thereof along the vertical fifth axis X5 and one or more second actuators, also not shown, which act upon the second portion 1 9 for promoting controlled rotation thereof about the horizontal sixth axis X 6 .
• the machine may comprise numerical control means, which are known per se, for controlling actuation of the first, second, third and fourth drive means and the first and second actuators, and which have an appropriate operator interface, also not shown and known per se.
• Controlled actuation of the drive means and the actuators will allow several processing sequences to be performed on the products P, as exemplarily shown in the figures.
• the invention fulfills the intended objects and particularly meets the requirement of providing a multi- axis machine for processing slabs of stone materials, that ensures high versatility in performing several different processing operations, thereby minimizing dead times for tool change or toolhead replacement.
• the present invention finds application in the mechanical machine- tool production industry and in the stone slab processing industry.

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• Engineering & Computer Science (AREA)
• Mining & Mineral Resources (AREA)
• Mechanical Engineering (AREA)
• Processing Of Stones Or Stones Resemblance Materials (AREA)
• Machine Tool Units (AREA)

Applications Claiming Priority (2)

Publications (2)

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Family Applications (1)

Country Status (5)

Cited By (9)

Families Citing this family (7)

Family Cites Families (4)

• 2013
  • 2013-06-28 IT IT000167A patent/ITVI20130167A1/it unknown
• 2014
  • 2014-06-27 WO PCT/IB2014/062678 patent/WO2014207723A1/en active Application Filing
  • 2014-06-27 ES ES14752396.3T patent/ES2634663T3/es active Active
  • 2014-06-27 PT PT147523963T patent/PT2983879T/pt unknown
  • 2014-06-27 EP EP14752396.3A patent/EP2983879B1/de active Active

Non-Patent Citations (1)

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