Blank upsetting mold positioning structure
The invention discloses a blank upsetting mold positioning structure. The blank upsetting mold positioning structure comprises a lower mould tabletop, a left upsetting head mold block, a right upsetting head mold block and an oil cylinder, wherein the left upsetting head mold block is fixed to the lower mould tabletop, the right upsetting head mold block is installed on the lower mould tabletop in a sliding mode, the oil cylinder drives the right upsetting head mold block to slide linearly on the lower mould tabletop, the left upsetting head mold block and the right upsetting head mold block are provided with a lower mould left cavity and a lower mould right cavity respectively, the shapes and the structures of the lower mould left cavity and the lower mould right cavity are the same, and after the left upsetting head mold block and the right upsetting head mold block are combined, a cavity formed by the lower mould left cavity and the lower mould right cavity is formed by sequentially connecting an arc cavity, a conical cavity and a cylindrical cavity. By means of the blank upsetting mold positioning structure, a cylindrical rod material can be inserted into a lower mould conveniently, and the rod material can also be tightly clamped in the lower mould and can keep good perpendicularity. 1. A positioning structure the pillar molds , characterized in that the table (1), left heading module (2), right heading module (3) and cylinder (4) to form, the states the left heading module (2) is fixed to the lower-die table (1) the upper, right heading module (3) is slidably mounted on lower die table (1) is, the oil cylinder (4) driving the right heading module (3) table in the lower die (1) a straight line on the sliding, left heading module (2) and right heading module (3) are respectively arranged on the right and the lower die left die space mold die, and lower die left die space the shape of the die cavity right , have the same structure, left heading module (2), right heading module (3) after closing, and from the lower mould left die spaceright cavity in the mold an arc-shaped cavity (5), conical cavity (6) and cylindrical chamber (7) to form, a cylindrical cavity (7) of forging to the diameter of the cylindrical bar is equal to the diameter of the. 2. Positioning structure the pillar molds according to Claim 1, characterized in that the head module states right ferrule at the butt-end (3) is provided with a sliding plate (8), the lower table (1) is fixed with two hitting platen (9), hitting platen (9) and a lower die table (1) for the sliding plate is arranged between the (8) sliding the sliding slot, the sliding plate (8) is provided with an oil cylinder one end of the 1st connecting seat (10), the lower table (1) is provided with a cylinder connecting 2nd seat (11), the cylinder (4) are respectively connected with the two ends of the oil cylinder 1st connecting seat (10) and cylinder connecting 2nd seat (11). 3. Positioning structure the pillar molds according to Claim 1, characterized in that from the upper to the lower direction, the arc-shaped cavity (5) the radius of the horizontal cross-section is gradually reduced on.