Classifications

• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
  • B23Q—DETAILS, COMPONENTS, OR ACCESSORIES FOR MACHINE TOOLS, e.g. ARRANGEMENTS FOR COPYING OR CONTROLLING; MACHINE TOOLS IN GENERAL CHARACTERISED BY THE CONSTRUCTION OF PARTICULAR DETAILS OR COMPONENTS; COMBINATIONS OR ASSOCIATIONS OF METAL-WORKING MACHINES, NOT DIRECTED TO A PARTICULAR RESULT
  • B23Q7/00—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting
  • B23Q7/14—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines
  • B23Q7/1426—Arrangements for handling work specially combined with or arranged in, or specially adapted for use in connection with, machine tools, e.g. for conveying, loading, positioning, discharging, sorting co-ordinated in production lines with work holders not rigidly fixed to the transport devices
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B62—LAND VEHICLES FOR TRAVELLING OTHERWISE THAN ON RAILS
  • B62D—MOTOR VEHICLES; TRAILERS
  • B62D65/00—Designing, manufacturing, e.g. assembling, facilitating disassembly, or structurally modifying motor vehicles or trailers, not otherwise provided for
  • B62D65/02—Joining sub-units or components to, or positioning sub-units or components with respect to, body shell or other sub-units or components
  • B62D65/18—Transportation, conveyor or haulage systems specially adapted for motor vehicle or trailer assembly lines
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
  • B65G15/00—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration
  • B65G15/10—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration comprising two or more co-operating endless surfaces with parallel longitudinal axes, or a multiplicity of parallel elements, e.g. ropes defining an endless surface
  • B65G15/12—Conveyors having endless load-conveying surfaces, i.e. belts and like continuous members, to which tractive effort is transmitted by means other than endless driving elements of similar configuration comprising two or more co-operating endless surfaces with parallel longitudinal axes, or a multiplicity of parallel elements, e.g. ropes defining an endless surface with two or more endless belts
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
  • B65G35/00—Mechanical conveyors not otherwise provided for
  • B65G35/06—Mechanical conveyors not otherwise provided for comprising a load-carrier moving along a path, e.g. a closed path, and adapted to be engaged by any one of a series of traction elements spaced along the path
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
  • B65G37/00—Combinations of mechanical conveyors of the same kind, or of different kinds, of interest apart from their application in particular machines or use in particular manufacturing processes
  • B65G37/02—Flow-sheets for conveyor combinations in warehouses, magazines or workshops
• • B—PERFORMING OPERATIONS; TRANSPORTING
  • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
  • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
  • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
  • B65G2201/02—Articles

Definitions

• the present invention relates to a handling system on sleds of the type comprising at least one rapid conveying device for the transfer of objects, disposed on the sleds, between work stations where these objects must undergo operations carried out by a tool machine. or a robot, without unloading the conveying device objects.
• the system is designed to allow rapid advancement of objects and their positioning at stop points with suitable precision. It thus provides a solution to a problem which had not been resolved by the devices of the prior art, in particular by the description of British patent application GB 2 074 969 A.
• transmission belts are used which are notched to be driven by pinions carried by shafts driven in rotation. Transmission to objects to be moved takes place by friction at a smooth part of the belts, in contact with rollers.
• this device is not suitable for handling systems on sleds because, in the latter, the sleds are driven by rollers mounted in cantilever on either side of a frame, generally called a table.
• these rollers support the sleds on which the objects to be transferred are placed at the same time as they entrain them. It is also useful to be able to combine in the same handling system, where the objects remain carried by the same sleds, both rapid conveying devices between work stations where the sleds are immobilized, and slow conveying devices where, on the contrary, operators work on the objects during the displacement of these.
• the present invention therefore relates to a system for handling objects carried on sleds, comprising roller conveyor devices arranged in cantilever on either side of the conveyor line, characterized in that 'It comprises at least one such rapid conveying device between work stations where the sleds are immobilized, said rollers being associated in this device with drive belts which cover them and which have notched edges cooperating with at least some of said rollers constituting drive pulleys arranged at the ends of the conveying device.
• the conveyor device comprises, between the conveyor belts, means for positioning the sleds in the working position.
• the positioning means consist of movable studs, introduced into holes in the upper frame of the sledge under the action of eccentric cams mounted on axes controlled in rotation by a linkage actuated by a jack.
• the sleds comprise at least two centering holes arranged along a diagonal of the sledge and at most two support points along the other diagonal.
• the cams are mounted on two axes arranged on the conveyor device at a distance corresponding to the interval separating the centering holes on the sledge.
• Another object of the invention is to provide a rapid handling system which can also be combined with slow conveying devices so as to provide flexibility in the use of fast or slow conveying devices.
• a sledge specifiqrue which comprises an upper frame in welded tubes on which are mounted studs for fixing transport objects and arms in the shape of "C, each connected by one end of the" C to one of the longitudinal sides of the frame the other end of each "C” being connected to one of the two skis arranged with a spacing corresponding to the spacing of the belts of the conveying device, the arms e "C” being mounted transversely to the conveying direction and with their concavity facing inward. of the conveyor line.
• the sledge comprises skis of length greater than the objects to be transported.
• FIG. 1 shows a top view of conveyor device with positioning station
• FIG. 2 shows a top view of the specific sledge, used with the conveyor devices j
• FIG. 3 shows a sectional view of the conveyor / sledge assembly.
• the handling system which will be described, in relation to FIGS. 1 to 3 ” allows conveying speeds of the order of 100 m / min and centering at the stopping points of the sledges conveyed.
• the conveying device of FIGS. 1 and 3 essentially consists of a roller table comprising two side members 21, 20 with a section in the shape of a "U", in which are driven rotation axes. - l i ⁇ 22, ⁇ 23 > 24.25, at both ends of which are mounted cantilever rolls 220,230,240,250.
• the ends of the roller table consist of toothed pulleys 220 mounted on the drive shaft 22 are driven by means of a transmission chain 3 and a pinion (without reference) by a motor 4.
• the pulleys 250 of the axis 25, at the other end of the conveying device, make it possible to adjust the tension of the belts 27 > 28 by means of tensioning devices 251 ensuring a displacement in the longitudinal direction, represented by the arrow A, of the axes of rotation of the pulleys 250.
• the toothed belts 27 and 28, respectively mesh with the pulleys 220 to 250 arranged on either side outside the side members 21 and 20, respectively.
• the cantilever mounting of the pulleys outside the side members and the toothed belts ensure both high operating speed without having the belt slip on the drive pulleys and on the other hand use sleds specific to a slow-flow handling installation.
• These slow-flow installations have a fixed protective deck covering the belts and which slides between the legs of sleds on the move so as to protect the handling system against falling objects and to avoid accidents with personnel on the move. along the conveyor line.
• the sleds are formed by a frame formed by two longitudinal members 101,102, interconnected by crosspieces 103 to 105 near which arms 106 have been mounted in the form of "C".
• the end of the arms 106 which is not fixed to the frame of the sled is made integral with pads 108, 109 placed vertically under the longitudinal members 102, 101 of the frame of the sled.
• the "C" arms are arranged transversely to the line of displacement of the sleds and with their concavity turned towards the inside of the conveyor line.
• the spacing of the pads 108,109 corresponds to the spacing belts 27,28.
• the drive pulleys 230 have a smooth part 2300 and a notched part 2301.
• the smooth part cooperates with a corresponding smooth part on the belts while the notched part 2301 cooperates with a corresponding notched part on the belts.
• the smooth part of the belt and the pulleys is plumb with the pads 108, 109.
• the sledge has, along a diagonal, two centering holes 1050.1040, the first 1050 being near the spar 101 and the cross member 105, while the second 1040 is near the second spar 102 and cross member 104 located at the opposite end of the sledge.
• the centering holes 1050.1040 are produced in tabs attached along the side members and crosspieces, these tabs being provided with said centering holes 1040.1050.
• two vertical columns 51.50 are made integral with the side members 21.20 of the conveying device.
• These columns 51.50 exceed the height of the belts 27.28, but their height is slightly less than the height of the crosspieces of the sleds when the latter are conveyed by the conveyor device.
• These columns 50, 51 support slidingly a frame 5, at the four corners of which are arranged, either centering pads 54.55 at the frustoconical ends, or support pads which cooperate with the support surfaces of the legs 1051, 1041 integral with the frame of the sledge and arranged along the diagonal opposite to the diagonal of the legs 1050.1040 comprising the centering holes.
• the support pads are not shown; they consist of simple cylinders with a height less than the centering studs.
• Centering studs 54.55 (or equivalent support studs) have the furthest end at their end support and centering tabs, cylindrical tails 550.540 to 560.570, with which the eccentrics 223 cooperate mounted facing the tails 550.540; 560.570 of the centering pads 55.54 and of the support pads 56.57.
• the eccentrics 223 are mounted at the ends of the axes 70.60 which protrude on either side of the beams 21.20.
• the axes 60, 70 are arranged on the conveying device at a distance corresponding to the interval separating the centering holes 1040, 1050 from the sledge.
• Flanges 71,72; 74.75 Î 61.62 to 64.65, respectively secured to axes 70.60, are driven around pivot axes 73.76; 63.66, by rods 8.9, the axes of articulation 63.73; 66,76 are eccentric with respect to the axes of rotation 70,60 of the eccentrics 223.
• These rods 8,9 are themselves controlled by a axis of rotation 80 mounted eccentrically with respect to the rods.
• This axis of rotation 80 being actuated by a jack 91 connected by an eccentric 90 to this axis. When the jack 91 is actuated, this causes the eccentric 90 to rotate the axis 80.
• This rotation of the axis 80 generates, by means of the eccentric axis 83.86, a displacement of the rods 8 , 9, which themselves cause a displacement of the eccentric axes 63,66,76,73--
• This displacement of the eccentric axes causes a rotation of the axes 60,70 which themselves generate a displacement of the eccentrics 223
• These eccentrics 223 cause the rise of the frame 5 which, by means of the centering pads 55.54 and of the support pads 56.57, takes off the sled with respect to the belts 27.28 of 5 mm, the heights of the centering pads 54.55 and support pads being calculated relative to the support points on the sledge so that the latter is horizontal.
• the sleds comprise in known manner mounting pads 107 which allow the fixing of the objects 1 to be transported.
• the rapid conveying device allows the stopping and centering of the sleds at a post. given etr, as soon as the frame, under the action of the jacks and eccentrics, lowers, the sleds are again driven by the belt system which runs at its own speed of 100 m / min.

Applications Claiming Priority (1)

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• 1987
  • 1987-07-09 WO PCT/FR1987/000275 patent/WO1989000525A1/fr not_active Application Discontinuation
  • 1987-07-09 EP EP19870904535 patent/EP0323953A1/de not_active Withdrawn

Non-Patent Citations (1)

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