Fixture for thin-walled workpiece

Patent metadata

Field	Value
Publication number	US-10456882-B2
Application number	US-201715822741-A
Country	US
Kind code	B2
Filing date	Nov 27, 2017
Priority date	Oct 20, 2017
Publication date	Oct 29, 2019
Grant date	Oct 29, 2019

Abstract

A fixture for a thin-walled workpiece includes two clamping devices. Each of the clamping devices has a metal carrier and a damper. The metal carrier has a carrying portion and a supporting portion, where the supporting portion has a stair portion having a plane surface and a standing surface with a slope. The damper has a metal clamping portion and a damping portion. One end of the metal clamping portion is formed as an inclined surface. The damping portion has at least two elastic layers and at least one metal layer, which are laminated in an interlacing arrangement with the same slope of the inclined surface. One of the elastic layers is disposed to connect the inclined surface. The end of the metal clamping portion connecting the elastic layer is located on the stair portion, while the opposite end of the metal clamping portion protrudes out of the supporting portion.

First claim

What is claimed is:

1. A fixture for a thin-walled workpiece, comprising two clamping devices, each of the two clamping devices further comprising:
a metal carrier, further including:
a carrying portion, having a carrying surface; and
a supporting portion, located on the carrying portion, having a stair portion at a top thereof, the stair portion having a plane surface and a standing surface having a slope; and

a clamper, further including:
a metal clamping portion, having an end formed as an inclined surface, the inclined surface having another slope identical to the slope of the standing surface; and
a damping portion, having at least two elastic layers and at least one metal layer laminated in an interlacing arrangement and having the same slope as the inclined surface, one of the at least two elastic layers being connected with the inclined surface of the metal clamping portion, each of the at least one elastic layer being made of an elastic non-metallic material.

2. The fixture for a thin-walled workpiece of claim 1 , wherein an angle between the standing surface of the supporting portion and the plane surface is larger than 90°.

3. The fixture for a thin-walled workpiece of claim 1 , wherein a thickness of each of the at least two elastic layers is smaller than that of the at least one metal layer sandwiched by two said elastic layers.

4. The fixture for a thin-walled workpiece of claim 1 , wherein a Young's modulus of a metallic material for the at least one metal layer is larger than that of the material for both the at least two elastic layers.

5. The fixture for a thin-walled workpiece of claim 1 , wherein the metal carrier, the metal clamping portion and the at least one metal layer are all made of carbon steels.

6. The fixture for a thin-walled workpiece of claim 1 , wherein a Young's modulus of a metallic material for the metal carrier, the metal clamping portion and the at least one metal layer is larger than that for a workpiece clamped by the fixture.

7. The fixture for a thin-walled workpiece of claim 1 , wherein each of the at least two elastic layers is made of a nonlinear elastic material selected from the group of a rubber and an asphalt.

8. The fixture for a thin-walled workpiece of claim 1 , wherein the clamper is attachably mounted to the supporting portion.

9. The fixture for a thin-walled workpiece of claim 8 , wherein the supporting portion and the clamper are engaged by respective screw holes, through holes and connecting bolts.

Assignees

• Ind Tech Res Inst

Inventors

• Tai Chung-Yu
• Chen Ke-Hen
• Huang Ci-Rong
• Peng Ta-Jen

Classifications

• B23B31/1075

  Retention by screws · CPC title

• B23Q3/065 Primary

  for holding workpieces being specially deformable, e.g. made from thin-walled or elastic material · CPC title

• B23B2215/64

  Thin walled components · CPC title

• B23Q39/022

  with same working direction of toolheads on same workholder · CPC title

• B25B1/2457

  with auxiliary attachments · CPC title