Progressive die apparatus and method for making a lead alloy battery terminal
AssigneeTulip Corporation
InventorsBernard N. Spiegelberg, Dennis J. Brown
Life of this patent
Estimating the term…
Abstract
A method and apparatus utilizing a single progressive die to cold form a finished lead battery terminal from a lead slug. The apparatus includes a lead pickup station, a progressive die having three stations, a drop off station and a transfer mechanism. The transfer mechanism indexes the lead slug from each station to the next with each cycle of the progressive die.
Claims20
A method for manufacturing lead battery terminals in an automated process using a progressive die having at least three stations, the method comprising the steps of:
- stamping a lead slug in a preform station of a progressive die forming a pre-formed lead slug having a cavity;
- transferring the pre-formed lead slug with a transfer mechanism to a semi-finish station in the progressive die;
- stamping the pre-formed lead slug in the semi-finish station forming a semi-finished battery terminal including a head having at least one ring, a frustum, a splined ring formed therebetween, and a tapered recess having a blank wall;
- transferring the semi-finished battery terminal to a punching station in the progressive die;
- and
- punching the semi-finished battery terminal in the punching station to punch a disc from the blank wall forming a finished battery terminal having a through hole.
An apparatus for forming a finished battery terminal, the apparatus comprising:
- a station configured to form a cylindrical lead slug;
- a lead slug pickup station;
- a transfer mechanism;
- and
- a progressive die having
- a preform station configured to form a pre-formed lead slug having a cavity,
- a semi-finish station configured to form a semi-finished battery terminal including a head having at least one ring, a frustum, a splined ring formed therebetween, and a tapered recess having a blank wall, and
- a punching station configured to punch a disc from the semi-finished battery terminal to form a finished battery terminal.
A method for manufacturing lead battery terminals in an automated process using a progressive die having at least two stations, the method comprising the steps of:
- transferring a lead slug to a semi-finish station in a progressive die;
- stamping the lead slug in the semi-finish station forming a semi-finished battery terminal including a head having at least one ring, a frustum, a splined ring formed therebetween, and a tapered recess having a blank wall;
- transferring the semi-finished battery terminal to a punching station in the progressive die;
- and
- punching the semi-finished battery terminal in the punching station to punch a disc from the blank wall forming a finished battery terminal having a through hole.
Dependencies are inferred from the claim text.