self.iface.actionPanToSelected().trigger()

from PyQt4.QtGui import QToolBar
for x in iface.mainWindow().findChildren(QToolBar):
    # x.objectName() returns the names of the toolbars
    if x.objectName() == 'Example':
        print x.children()

[<PyQt4.QtGui.QLayout object at 0x0000000023589840>, <PyQt4.QtGui.QToolButton object at 0x0000000024DCE488>, <PyQt4.QtGui.QAction object at 0x0000000024DCE510>,
<PyQt4.QtGui.QToolButton object at 0x0000000024DCE598>, <PyQt4.QtGui.QToolButton object at 0x0000000024DCE620>]

self.actionCopy = QAction( icon, u"Copy selected layers and groups to  clipboard (Ctrl+Ins)", self.iface.mainWindow() )
self.actionCopy.setObjectName('mActionCopyLayersToClipboard')

from PyQt4.QtGui import QAction
iface.mainWindow().findChild( QAction, 'mActionCopyLayersToClipboard' ).trigger()