US 8,899,136 B2Granted

Punching device

AssigneesHONG FU JIN PRECISION INDUSTRY (ShenZhen) CO., LTD., Hon Hai Precision Industry Co., Ltd.

InventorsXiao-Gang Zhu, Zhao-Qian Zhang, Wei Huang, Feng Wu

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Abstract

A punching device includes a base, a linkage assembly, a carrying assembly, a punch and a pressure arm. The linkage assembly includes a pair of linkage members, a rotating member, a first connecting rod, a second connecting rod and a third connecting rod. The rotating member is rotatably mounted on the supporting member, the pair of linkage members is movably mounted on the rotating member, the first, the second and the third connecting rods connects in turn. The carrying assembly is rotatably connected to the third connecting rod and movably supported by the loading member. The punch is mounted on an end of the rotating member. The pressure arm is rotatably connected to the supporting member and the pair of linkage members to drives the carrying assembly to position a workpiece and the punch to punch the workpiece.

Claims20

Dependent claims

A punching device, comprising:

a base comprising a loading member and a supporting member mounted on the loading member;
a linkage assembly comprising a pair of linkage members, a rotating member, a first connecting rod, a second connecting rod and a third connecting rod, wherein the rotating member is rotatably mounted on the supporting member, the pair of linkage members is movably mounted on the rotating member, a first end of the first connecting rod is rotatably connected to the pair of linkage members, a second end of the first connecting rod opposite to the first end thereof is rotatably connected to a middle portion of the second connecting rod, the second connecting rod is rotatably connected to the supporting member and the third connecting rod by opposite ends thereof;
a carrying assembly rotatably connected to the third connecting rod and movably supported by the loading member;
a punch mounted on an end of the rotating member;
and
a pressure arm rotatably connected to the supporting member and the pair of linkage members, wherein when an external pressing force is applied to the pressure arm to rotate, the pressure arm drives the carrying assembly to position a workpiece via the linkage assembly, and the rotating member rotates to drive the punch to punch the workpiece.

3 more elements

A punching device, comprising:

a base comprising a loading member and a supporting member mounted on the loading member;
a linkage assembly comprising at least one linkage member, a rotating member, a first connecting rod, a second connecting rod and a third connecting rod, wherein the rotating member is rotatably mounted on the supporting member, the at least one linkage member is movably mounted on the rotating member, a first end of the first connecting rod is rotatably connected to the linkage member, a second end of the first connecting rod opposite to the first end thereof is rotatably connected to a middle portion of the second connecting rod, the second connecting rod is rotatably connected to the supporting member and the third connecting rod by opposite ends thereof;
a carrying assembly comprising a carrying block and a resilient module received in the carrying block, wherein the carrying block is movably supported by the loading member, the resilient module is rotatably connected to the third connecting rod;
a punch mounted on an end of the rotating member;
and
a pressure arm rotatably connected to the supporting member and the linkage member, wherein when an external force is applied to the pressure arm to rotate, the pressure arm drives the carrying block to position a workpiece via the linkage assembly, then compresses the resilient module and rotates the rotating member to drive the punch to punch workpieces.

3 more elements

Dependencies are inferred from the claim text.