摘要:
A conveyor chain pin forming facility includes a base, on which are installed a fixed bottom die device, a movable top die device and two movable side die devices. The side die devices are separately installed on two ends of the bottom die device. A metal object is placed inside the bottom die device. By closing the top die device and the side die devices onto the top side and two sides of the bottom die device, the metal object is compressed to form. The component thus formed has a smooth surface without protruded ribs, and the production process can be simplified.
摘要:
A method of forming a workpiece using an apparatus is provided. The apparatus includes a first stage including a die fixture, a die actuator coupled to the die fixture, and a holding member configured to cooperate with the die fixture to hold the workpiece. The method includes holding the workpiece to the first stage die fixture using the first stage holding member, and conforming the workpiece to a first predetermined dimension using the first stage die fixture.
摘要:
Forging of shaped elements on or from bars is performed by the upsetting of a section of the bar along its axis with a simultaneous squeezing of a part of this section which takes place in a direction transverse to the axis of the bar. Shaping of the product takes place in a device which cooperates with a press or is driven in another way. The device consists of two sets. A set consists of a plate with bearing rollers, a housing for dies with bearing rollers for connectors located between these rollers and linking elements which suspend the housing of the dies to the plates. To the plates, shaping punches are fixed. During forging operation, the bar is fastened between split dies.
摘要:
An extruded metal chain pin (34) for connecting center and side links of a chain together. The chain pin (34) comprises an extruded solid cylindrical body (130), having two flattened transverse ends (132) and an extruded grain structure (134) extending parallel through the length of the cylindrical body (130). The pin is characterized by all of the extruded grain structures (134) extending parallel to the cylindrical body (130) and into the flattened transverse ends (132) before reaching flare-out points.
摘要:
A punch press assembly (20) simultaneously upsets two ends (22) of a cylindrical blank (24) to produce a chain pin (34) having an extruded grain structure (134) which extends parallel to its longitudinal axis (B) into the upset regions of the chain pin (34). The punch press (20) clamps an upper die (30) to a lower die (26) via a mechanical crank (45), attached to the upper die (30) with lost motion (80,82). While maintaining the clamping relationship between the upper (30) and lower (26) dies, the downwardly directed force created by the mechanical crank (45) is transferred to the horizontal punches (36) by the two pairs of wedges (58,60). The two lower wedges (60) slide horizontally along two tie rods (84) and force the two punches (36) into the recess (28) to upset the ends of the cylindrical blank (24) to form a chain pin (34).
摘要:
SIMULTANEOUS UPSET FORMING BOTH ENDS OF A DUCTILE ROD OR THE LIKE WITHOUT THE NECESSITY OF A CLAMPING MEANS FOR HOLDING THE ROD SECURELY IS ACCOMPLISHED BY THE METHOD AND APPARATUS DESCRIBED.