1. Field of the Invention
The present invention relates to a forming die, and more particularly to a forming die for bending metal parts.
2. Description of the Prior Art
Please refer to FIGS. 5 and 6, a forming die 100′ of prior art comprises a moving die 1′, a moving supporting member 2′, a fixed die 3′ and a fixed supporting member 4′. The moving die 1′ is fixed on the moving supporting member 2′, and the fixed die 3′ is fixed on the fixed supporting member 4′. The moving die 1′ disposes a protruding portion 11′ on the left side thereof. The protruding portion 11′ disposes a forming portion 12′. The fixed die 3′ defines a receiving cavity 31′. A flange 32′ is formed on the bottom wall of the receiving cavity 31′ and is capable of being engaged with the forming portion 12′. The flange 32′ forms a high point 321′. In the forming process, one end of a terminal 5′ is held between the fixed die 3′ and the fixed supporting member 4′, then the moving die 1′ is driven to move toward the left so that the other end of the terminal 5′ is bent to form a bending portion 51′.
However, because the prior forming die 100′ horizontally moves relative to the fixed die 3′, a front end 13′ of the forming portion 12′ cannot touch a back portion 322′ on the back of the high point 321′ of the flange 32′ and cannot completely extrude the bending portion 51′ of the terminal 5′. Namely, a gap 33′ is existed between the bending portion 51′ of the terminal 5′ and the flange 32′ of the fixed die 3′, so the extrusion force bearing area of the terminal 5′ is reduced and the size of the bending portion 51′ obtained by the prior forming die 100′ is not stable. Therefore, the bending degree of the bending portion 51′ obtained by the prior forming die 100′ is not enough to satisfy the needs for manufacturing.