Device for attaching a sprayer to a robotic arm

An attachment device for attaching, onto a robotic arm, a sprayer for products for coating workpieces, the attachment device comprising:

• a cover for attaching to (i) the sprayer or (ii) the robotic arm, the cover having a substantially cylindrical shape extending along a longitudinal axis, and the cover comprising, on an outer surface, at least one recess for mating with a tool;
• a nut able to slide and rotate, mounted on said cover, comprising:
• a first helical portion;
• and
• a cover stop axially stopping the nut relative to said cover;
• a deformable ring mounted on said nut, the ring comprising:
• a deformable portion;
• and
• an annular portion, the annular portion comprising at least one stop member interacting with a ring stop formed on said nut, so as to provide an axial stop of the ring with respect to said nut;
• and
• a flange for attaching to (i) the sprayer if the cover is attached to the robotic arm, or to (ii) the robotic arm if the cover is attached to the sprayer, the flange comprising:
• a second helical portion mating with said first helical portion of said nut;
• and
• an interfacing portion interacting with said deformable ring in such a way that, when tightening said nut for locking the flange onto said cover, said deformable portion is deformed so as to interact with said interfacing portion to provide a connection between the flange and said deformable ring.

An attachment device for attaching, onto a robotic arm, a sprayer for products for coating workpieces, the attachment device comprising:

• a cover for attaching to (i) the sprayer or (ii) the robotic arm, the cover having a substantially cylindrical shape extending along a longitudinal axis, and the cover comprising a first helical portion arranged for interacting with a matching portion on the robot arm, for attaching the device onto the robot arm;
• a nut able to slide and rotate, mounted on said cover, comprising:
• a second helical portion having an inverse pitch with respect to the pitch of said first helical portion;
• and
• a cover stop axially stopping the nut relative to said cover;
• a deformable ring mounted on said nut, the ring comprising:
• a deformable portion;
• and
• an annular portion, the annular portion comprising at least one stop member interacting with a ring stop formed on said nut, so as to provide an axial stop of the ring with respect to said nut;
• and
• a flange for attaching to (i) the sprayer if the cover is attached to the robotic arm, or to (ii) the robotic arm if the cover is attached to the sprayer, the flange comprising:
• a third helical portion mating with said second helical portion of said nut;
• and
• an interfacing portion interacting with said deformable ring in such a way that, when tightening said nut for locking the flange onto said cover, said deformable portion is deformed so as to interact with said interfacing portion to provide a connection between the flange and said deformable ring.

An attachment device for attaching, onto a robotic arm, a sprayer for products for coating workpieces, the attachment device comprising:

• a cover for attaching to (i) the sprayer or (ii) the robotic arm, the cover having a substantially cylindrical shape extending along a longitudinal axis, and the cover comprising:
• a first end;
• a second end;
• and
• a disassembly portion arranged at said second end;
• a nut able to slide and rotate, mounted on said cover, comprising:
• a first helical portion;
• and
• a cover stop axially stopping the nut relative to said cover;
• a deformable ring mounted on said nut, the ring comprising:
• an annular portion comprising at least one stop member interacting with a ring stop formed on said nut, so as to provide an axial stop of the ring with respect to said nut;
• and
• a deformable portion comprising an annular distribution of claws extending substantially longitudinally from said annular portion either away from or towards the longitudinal axis, in such a way that the ends of the claws define a circle with a first diameter;
• and
• a flange for attaching to (i) the sprayer if the cover is attached to the robotic arm, or to (ii) the robotic arm if the cover is attached to the sprayer, the flange comprising:
• a second helical portion mating with said first helical portion of said nut;
• and
• an interfacing portion interacting with said deformable ring in such a way that, when tightening said nut for locking the flange onto said cover, said deformable portion is deformed so as to interact with the interfacing portion to provide a connection between the flange and said deformable ring, the interfacing portion defining a circle with a second diameter different from the first diameter, the first diameter and the second diameter and the claws being configured in such a way that the claws remain in the elastic deformation range thereof during actuation of the device, and wherein said disassembly portion comprises a section with a third diameter interacting with the claws of said ring so as to move the claws away from the position thereof, so as to release said interfacing portion from the flange when said cover is axially displaced towards said flange.