US 7,631,856 B2 · Fixing device

Abstract

A fixing device for fixing a workpiece defining a hole, includes a fixing shaft, a sliding bar, and a sliding block. The fixing shaft is configured to be inserted in the hole of the workpiece and defines a groove therein along an axial direction thereof. The sliding bar is mounted to the fixing shaft and movable in the groove along the axial direction. The sliding block is mounted to the fixing shaft and movable in the groove along a radial direction of the fixing shaft. When the sliding bar moves forward along the axial direction, the sliding block is moved toward the sliding bar along the radial direction. When the sliding bar moves backward along the axial direction, the sliding block is driven to move away from the sliding bar along the axial direction to urge against a wall bounding the hole of the workpiece to fix the workpiece.

Claims17

Dependent claims

A fixing device for fixing a workpiece defining a hole, comprising:

a fixing shaft configured to be inserted into the hole of the workpiece, the fixing shaft defining a groove therein along an axial direction and extending to a surface thereof;
a sliding bar mounted to the fixing shaft and being movably in the groove of the fixing shaft along the axial direction;
and
a sliding block being T-shaped and comprising a horizontal piece and a vertical piece perpendicularly extending form the horizontal piece, wherein the vertical piece is mounted to the fixing shaft and movable in the groove of the fixing shaft;
wherein
when the sliding bar moves forward along the axial direction, the sliding block is moved toward the sliding bar along the radial direction, when the sliding bar moves backward along the axial direction, the sliding block is driven to move away from the sliding bar along the radial direction, to urge against a wall bounding the hole of the workpiece via the horizontal piece to fix the workpiece.

3 more elements

A fixing device for fixing a workpiece defining a hole, comprising:

a supporting board defining an opening;
a fixing shaft configured to be inserted into the hole of the workpiece, wherein the fixing shaft is rotatably mounted to the supporting board via being inserted in the opening of the supporting board, the fixing shaft defines a groove therein along an axial direction and extending to a surface thereof, a blocking part being formed around the fixing shaft;
a turning member secured to an end of the fixing shaft, wherein the supporting board is sandwiched between the turning member and the blocking part of the fixing shaft;
a sliding bar mounted to the fixing shaft and being movably in the groove of the fixing shaft along the axial direction;
and
a sliding block mounted to the fixing shaft and being movable in the groove of the fixing shaft along a radial direction of the fixing shaft;
wherein
when the sliding bar moves forward along the axial direction, the sliding block is moved toward the sliding bar along the radial direction, when the sliding bar moves backward along the axial direction, the sliding block is driven to move away from the sliding bar along the radial direction, to urge against a wall bounding the hole of the workpiece to fix the workpiece, wherein an elastic member is configured between the fixing shaft and the sliding bar to supply a force to keep the sliding bar from sliding forward.

5 more elements

A fixing device for fixing a workpiece defining a hole, comprising:

a supporting board defining an opening;
a fixing shaft configured to be inserted into the hole of the workpiece, wherein the fixing shaft is rotatably mounted to the supporting board via being inserted in the opening of the supporting board, the fixing shaft defines a groove therein along an axial direction and extending to a surface thereof, a blocking part being formed around the fixing shaft;
a turning member secured to an end of the fixing shaft, wherein the supporting board is sandwiched between the turning member and the blocking part of the fixing shaft;
a sliding bar mounted to the fixing shaft and being movable in the groove of the fixing shaft along the axial direction;
and
a sliding block mounted to the fixing shaft and being movable in the groove of the fixing shaft along a radial direction of the fixing shaft;
wherein
each of the sliding bar and the sliding block comprises an inclined surface, the two inclined surfaces engage with each other to make the sliding block to move along the radial direction related to the sliding bar;
the sliding block is T-shaped and comprises a horizontal piece, and a vertical piece perpendicularly extending form the horizontal piece, the inclined surface of the sliding block is formed on the vertical piece, the vertical piece is mounted to the fixing shaft and movable in the groove of the fixing shaft, the horizontal piece is located out of the groove of the fixing shaft;
when the sliding bar moves forward along the axial direction, the sliding block is moved toward the sliding bar along the radial direction, when the sliding bar moves backward along the axial direction, the sliding block is driven to move away from the sliding bar along the radial direction, to urge against a wall bounding the hole of the workpiece to fix the workpiece.

7 more elements

Dependencies are inferred from the claim text.

Fixing device

Life of this patent

Fixing device

Life of this patent

Abstract

Claims17