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
  • B23Q7/1436—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 using self-propelled work holders
• • 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
  • B23Q7/1442—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 using carts carrying work holders

Definitions

• the invention relates to a device for transporting workpieces according to the preamble of the main claim.
• a known device of this type EP-AI 0 285 527
• the signal strips are fixedly arranged, so that it makes sense to use stop points at which the transport vehicles are braked and stopped in any case.
• stop points at which transport vehicles are to pass without a stop according to the program fixed signal bars can cause the system to unnecessarily increase the throughput times of the transport vehicles.
• the arrangement according to the invention with the characterizing features of the main claim enables further optimization of the transport system, in particular with regard to the throughput times of the transport car through the system.
• This type of energy supply enables the signal bar to be actuated via valve-controlled pneumatic cylinders even without a great deal of tubing. In this case, it is only necessary to ensure that the cavities in the transport web carrier supplying the pressure medium are closed on all sides except for the connections for the pressure medium supply and the valve or the pneumatic cylinder.
• the proposal to supply the drive energy for functional elements provided on the transport track supports directly through the cavities of the hollow profile rails forming the transport track supports is not limited to the drives of signal bars of the type mentioned in the preamble of the main claim.
• the proposal can be implemented with the same advantage, for example, for drives for mechanical wagon guide elements in switch areas or for stoppers at workplaces.
• FIG. 1 shows a cross section through the transport path and a transport carriage of the exemplary embodiment
• FIG. 2 shows a plan view of a partial area according to FIG. 1.
• the device has a transport path with two transport path carriers 10 which run parallel to one another at a distance and are each composed of a plurality of hollow profile rails 12a, 12b etc. arranged axially one behind the other (FIG. 2).
• the hollow profile rails 12a, b have a relatively complex cross-sectional profile, which essentially consists of a horizontal leg 14 and a vertical leg 16 and forms three closed cavities 18, 20, 22.
• a running surface 24 is formed on each of the horizontal legs 14 of the two transport track carriers 10, on which transport carriages 26 rest with their running wheels 28.
• the transport carriages 26 each have their own program-controlled travel drive 30 and are further provided for lateral guidance with support rollers 32 which bear against the vertical legs 16 of the transport track carriers 10 on the inside.
• the device is further provided with means for controlling the travel drives 30 of the transport trolleys 26, which also include signal bars 40 which cooperate with functional elements 42 on the transport trolleys 26.
• the signal bars 40 are preferably arranged at a predetermined distance from the abutment points of the transport track system and have the effect that the transport carriages 26 are braked when they reach the signal bar 40 and are moved to the stop point at a predetermined minimum speed.
• the signal bar 40 visible in the drawing can, according to the invention, be transferred downward from the illustrated working position into a functionless retreat position.
• the signal bar 40 is articulated on the plunger 44 by two pneumatic cylinders 46 arranged axially one behind the other, each of which is fastened via a bracket 48 to the horizontal leg 14 of a hollow profile rail 12a, b.
• Both pneumatic cylinders 46 are controlled jointly by a solenoid valve 50 and connected to this via corresponding pressure medium lines.
• the solenoid valve 50 is also attached to a hollow profile rail 12a, b.
• the solenoid valve 50 with the two pneumatic cylinders 46 can form a completely preassembled structural unit.
• the pressure medium is supplied to the solenoid valve 50 via the cavities 20 of the hollow profile rails 12a, b.
• a connection piece 52 provided with two outlets for the pressure medium is preassembled, an outlet of which opens into the hollow space 20 and the other of which outlet is connected via a pipe 54 and an angle piece 56 to the Cavity 20 of the adjacent hollow profile rail 12b is connected.
• Each cavity 20 is axially sealed by a plate 58 at the two ends of a hollow profile rail 12a, b.
• the solenoid valve 50 has a connecting piece 60, which protrudes into the cavity 20 in a sealed manner through a subsequently introduced transverse bore in the corresponding hollow profile rail 12a, b.

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• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Platform Screen Doors And Railroad Systems (AREA)

Applications Claiming Priority (2)

Publications (1)

Family

ID=6405930

Family Applications (1)

Country Status (2)

Citations (1)

Family Cites Families (3)

• 1990
  • 1990-05-08 DE DE19904014697 patent/DE4014697A1/de active Granted
• 1991
  • 1991-04-05 WO PCT/DE1991/000284 patent/WO1991017017A1/de not_active Ceased

Patent Citations (1)

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