Work mounting apparatus

• US 5,500,997 A
• Filed: 03/22/1994
• Issued: 03/26/1996
• Est. Priority Date: 03/23/1993
• Status: Expired due to Fees

• Current Assignee: Japan Tobacco Inc., Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Original Assignee: Japan Tobacco Inc., Kabushiki Kaisha Toshiba (Toshiba Corporation)
• Inventors: Hayafuji, Ikuo, Hohrai, Hiroshi, Harada, Takeshi, Kobayashi, Kazutaka, Kojima, Kineo
• Primary Examiner(s): Hall, Carl E.
• Application Number:
  US08/215,626
• Time in Patent Office: 735 Days
• Field of Search: 29/740, 29/739, 29/741, 29/759, 29/834, 29/840
• US Class Current: 29/740
• CPC Class Codes: H05K 13/0409 Sucking devices
• CPC Class Codes: H05K 13/041 having multiple pick-up tools
• CPC Class Codes: Y10T 29/49133 with component orienting
• CPC Class Codes: Y10T 29/53178 Chip component
• CPC Class Codes: Y10T 29/53261 Means to align and advance work part

Abstract

A work mounting apparatus has a head drum rotated in one direction, work heads arranged on the outer periphery of the drum, each work head including a suction nozzle projecting from the work head toward a circular travel path, for moving along the travel path while keeping a fixed orientation and repeating a cycloidal motion during rotation of the head drum, a work feeder arranged on the travel path, and a movable table arranged on the travel path at a distance from the work feeder, for receiving thereon a printed board, wherein the suction nozzle of each work head sucks up a work from the work feeder and releases the sucked work at a desired release position on the travel path. The movable table is moved along a line intersecting the travel path, whereby a target point on the printed board, at which the work is to be mounted, is brought to the release position on the travel path, in cooperation with cycle control of the cycloidal motion of the work head.

Claims

1. A work mounting apparatus comprising:

a work supply section having a supply position to which works are continuously supplied, the supply position being located on a predetermined travel path;

pickup means for picking up a work from the supply position, said pickup means including a carrier arranged above the travel path and movable along the travel path, a work head arranged at the carrier and having an attraction rod projecting toward the travel path, and drive means for causing the work head to make a cycloidal motion, while holding the work head in a fixed orientation with respect to the travel path during movement of the carrier;

a work mounting section arranged on the travel path at a distance from said supply section, said work mounting section including a table surface for receiving thereon a component on which a work is to be mounted;

control means for controlling the cycle of the cycloidal motion to allow the attraction rod of the work head to attract a work at the supply position and to position a release point for the attracted work on the travel path, at which the attracted work is to be released; and

actuating means for moving the table surface along a line intersecting the travel path such that said actuating means shifts a target point on the component, at which the work is to be mounted, to the release point on the travel path.

2. The work mounting apparatus according to claim 1, wherein said attraction rod is rotatable about an axis thereof.

3. The work mounting apparatus according to claim 2, wherein said actuating means includes rotating means for rotating the table surface in a plane parallel to a plane containing the travel path.

4. The work mounting apparatus according to claim 3, wherein said table surface has a center of rotation located on the travel path.

5. The work mounting apparatus according to claim 2, wherein said actuating means includes swing means for swinging the table surface in a plane parallel to a plane containing the travel path.

6. The work mounting apparatus according to claim 5, wherein said swing means has a center of swinging motion for the table surface, the center of swinging motion being located at a predetermined distance from the table surface.

7. The work mounting apparatus according to claim 3, wherein said actuating means further includes reciprocating means for causing a linear motion of the table surface toward the travel path.

8. The work mounting apparatus according to claim 7, wherein said reciprocating means includes a guide rail extending toward the travel path and a slider capable of a reciprocating motion on the guide rail, said rotating means including a rotatable shaft projecting upward from the slider, and said work mounting section further including a table mounted on the rotatable shaft and having an upper surface serving as said table surface.