Positioning and clamping device
AssigneeNissan Motor Co., Ltd.
InventorTsuyoshi Sakamoto
Life of this patent
Estimating the term…
Abstract
A locating pin is mounted on a hollow post member in such a manner that a slit of the locating pin is communicated with an interior of the post member. A clamp arm is axially movably received in the slit and has a hook-shaped head exposed to an upper portion of the slit and a base portion exposed to the interior of the post member. The clamp arm is axially movable between a clamp position wherein the hook-shaped head is projected outward from the upper portion of the slit and an unclamp position wherein the hook-shaped head is retracted in the upper portion of the slit. A guard structure is installed in the slit of the locating pin to isolate the interior of the post member from the interior of the slit while permitting the axial movement of the clamp arm in the slit.
Claims19
A positioning and clamping device for positioning and clamping a work panel that has a locating opening formed therethrough, comprising:
- a hollow post member;
- a locating pin mounted on the post member, the locating pin being formed with a work seating surface onto which a peripheral portion of the locating opening of the work panel is seated when the locating pin is inserted into the locating opening;
- a slit defined in the locating pin and having a first portion exposed to the outside of the locating pin and a second portion exposed to the interior of the post member;
- a clamp arm axially movably received in the slit and having a hook-shaped head portion exposed to the first portion of the slit and a base portion exposed to the interior of the post member, the clamp arm being movable between a clamp position wherein the hook-shaped head portion is positioned near the work seating surface while projecting outward from the first portion of the slit and an unclamp position wherein the hook-shaped head portion is positioned away from the work setting surface while being retracted in the first portion of the slit;
- a drive mechanism installed in the interior of the post member to axially move the clamp arm between the clamp and unclamp positions;
- and
- a guard structure that isolates the interior of the post member from the interior of the slit while permitting the axial movement of the clamp arm in the slit.
A positioning and clamping device for positioning and clamping a work panel that has a locating opening formed therethrough, comprising:
- a hollow post member;
- a locating pin mounted on the post member, the locating pin being formed with a work seating surface onto which a peripheral portion of the locating opening of the work panel is seated when the locating pin is inserted into the locating opening;
- a slit defined in the locating pin and having a first portion exposed to the outside of the locating pin and a second portion exposed to the interior of the post member;
- a clamp arm axially movably received in the slit and having a hook-shaped head portion exposed to the first portion of the slit and a base portion exposed to the interior of the post member, the clamp arm being movable between a clamp position wherein the hook-shaped head portion is positioned near the work seating surface while projecting outward from the first portion of the slit and an unclamp position wherein the hook-shaped head portion is positioned away from the work setting surface while being retracted in the first portion of the slit;
- a drive mechanism installed in the interior of the post member to axially move the clamp arm between the clamp and unclamp positions by a power of compressed air;
- and
- a pair of guide pates that isolate the interior of the post member from the interior of the slit while permitting the axial movement of clamp arm in the slit, the guide plates being constructed of a resilient material and have base portions thereof fixed to given portions of the locating pin and strip portions thereof resiliently pressed against opposed surfaces of the clamp arm.
A positioning and clamping device for positioning and clamping a work panel that has a locating opening formed therethrough, comprising:
- a hollow post member;
- a locating pin mounted on the post member, the locating pin being formed with a work seating surface onto which a peripheral portion of the locating opening of the work panel is seated when the locating pin is inserted into the locating opening;
- a slit defined in the locating pin and having a first portion exposed to the outside of the locating pin and a second portion exposed to the interior of the post member;
- a clamp arm axially movably received in the slit and having a hook-shaped head portion exposed to the first portion of the slit and a base portion exposed to the interior of the post member, the clamp arm being movable between a clamp position wherein the hook-shaped head portion is positioned near the work seating surface while projecting outward from the first portion of the slit and an unclamp position wherein the hook-shaped head portion is positioned away from the work setting surface while being retracted in the first portion of the slit;
- a drive mechanism installed in the interior of the post member to axially move the clamp arm between the clamp and unclamp positions by a power of compressed air;
- and
- a guide plate constructed of a resilient material and arranged in the slit having a base portion thereof fixed to a given portion of the locating pin and a strip portion thereof resiliently pressed against a surface of the clamp arm thereby to bias the clamp arm in a direction from the unclamp position to the clamp position.
Dependencies are inferred from the claim text.