发明授权
- 专利标题: Pick and place machine with workpiece motion inspection
- 专利标题(中): 采用放置机器进行工件运动检查
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申请号: US10978687申请日: 2004-11-01
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公开(公告)号: US07706595B2公开(公告)日: 2010-04-27
- 发明人: Thomas W. Bushman , David D. Madsen , Paul R. Haugen , Steven K. Case , John D. Gaida , M. Hope Madsen
- 申请人: Thomas W. Bushman , David D. Madsen , Paul R. Haugen , Steven K. Case , John D. Gaida , M. Hope Madsen
- 申请人地址: US MN Golden Valley
- 专利权人: CyberOptics Corporation
- 当前专利权人: CyberOptics Corporation
- 当前专利权人地址: US MN Golden Valley
- 代理机构: Westman, Champlin & Kelly, P.A.
- 代理商 Christopher R. Christenson
- 主分类号: G06K9/00
- IPC分类号: G06K9/00
摘要:
Embodiments include measuring motion characteristics of the workpiece through the placement process. Since the component is placed on the workpiece with some force to ensure proper adhesion to the workpiece, some deflection of the workpiece is expected during the placement cycle. The placement force is adjusted to ensure that the component is safely placed into the solder paste or adhesive. Placement force is adjusted through a number of characteristics including: choice of spring tension in the nozzle; the length of the nozzle and the amount of over-travel into the board; the rigidity of the board and design; and the placement of the board support mechanisms. With proper adjustment of these characteristics and parameters, high quality placements onto the workpiece can be ensured.
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