Automatic attachment changer and boring machine having same

An automatic attachment changer comprising:

• a stacker having a plurality of housing cells that are stacked one on top of another with respect to a vertical direction, the stacker receiving therein a plurality of attachments such that at least one of the plurality of attachments is received in each of the plurality of housing cells, wherein each of the plurality of housing cells has a length larger than the at least one of the plurality of attachments received therein, and each of the plurality of attachments is arranged in the stacker so as to be oriented horizontally;
• a stacker carrier comprising a carrier body secured to the stacker, a body transfer that moves the carrier body and the stacker, and a carrier power that drives the body transfer for moving the carrier body and the stacker;
• and
• an attachment changer for controlling the stacker and the stacker carrier such that a select attachment selected among the plurality of attachments is combined to a spindle assembly of a boring machine,
• wherein each of the plurality of attachments is supported in a corresponding one of the plurality of housing cells by a respective support having a support v-block and a position guide, the support v-block and the position guide of each support being coupled to one another at one of a plurality of coupling positions at a given time by a coupler, the plurality of coupling positions being separated from one another in a horizontal direction,
• wherein the position guide of each support has a respective plurality of signal generators that are separated from one another so as to each correspond to a given coupling position of the plurality of coupling positions, and each of the plurality of generators of each support is able to generate a position signal when the corresponding support v-block is coupled to the position guide at that corresponding coupling position.