Planar-location vacuum absorption fixture used for cutting flat-plate-like parts

A plane positioning and vacuum adsorption technology, which is applied in metal processing and other directions, can solve the problems that affect the processing accuracy, difficulty in guaranteeing, and the workpiece is thrown out of the fixture, so as to achieve the effect of improving processing accuracy and accurate positioning

Inactive Publication Date: 2014-05-21
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The usual vacuum adsorption fixture can only play the role of adsorption, but cannot ensure the support of accurate positioning of the workpiece while adsorbing, making the processed workpiece unstable and affecting the processing accuracy
And the structure of existing clamps is generally all more complicated
Due to inconsistent installation accuracy, differences in the suction cup itself, and inconsistent vacuum negative pressure, the installation of the vacuum fixture cannot accurately guarantee the deformation and shape of the suction cup during vacuum pumping, which may cause the adsorbed workpiece to deviate from the expected position or even cause structural deformation.
[0003] In the processing of large-area flat-plate parts, when multi-station cutting and multi-knife / saw blade cutting at the same time, due to uneven suction or uneven deformation of the suction cup itself, as well as the effect of cutting force, the workpiece will partially occur at the first cutting position to a certain extent. Deformation, when moving to the subsequent cutting station at the end of the first cutting, since the workpiece has been divided into multiple parts, it is difficult to ensure that the parts are in a plane by sucker adsorption, and with the movement of the fixture, there will be There must be a certain offset, and the workpiece may be thrown out of the fixture when moving at high speed

Method used

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  • Planar-location vacuum absorption fixture used for cutting flat-plate-like parts
  • Planar-location vacuum absorption fixture used for cutting flat-plate-like parts
  • Planar-location vacuum absorption fixture used for cutting flat-plate-like parts

Examples

Experimental program
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Effect test

Embodiment 1

[0029] by Figure 5 The wooden board shown should be cut into 6 pieces of A1, A2, A3, A4, A5, A6, etc. as an example, and 9 is the printed feature on the board. Figure 5 There are printed feature upper right corner point 7 and printed feature lower left corner point 8 for positioning. The method of using the vacuum adsorption fixture capable of plane positioning for cutting flat-plate parts provided by the present invention is as follows:

[0030] Move the vacuum adsorption fixture above the plate to be cut;

[0031] Press down the vacuum adsorption fixture, start the suction cup to absorb the sheet;

[0032] Start the machine vision to identify the corner position of the printing feature;

[0033] Recalculate the target position, move the vacuum adsorption fixture to the first cutting station, align the cutter with the printed features, and press down the vacuum adsorption fixture to the workbench;

[0034] The first cut, cut as Figure 6 As shown, multiple cutters cut ...

Embodiment 2

[0038] Also to Figure 5 The wooden board shown should be cut into 6 pieces of A1, A2, A3, A4, A5, A6 as an example, without machine vision, Figure 5 There is no printed feature upper right point 7 and printed feature lower left point 8 in . The method of using the vacuum adsorption fixture capable of plane positioning for cutting flat-plate parts provided by the present invention is as follows:

[0039] Move the vacuum adsorption fixture above the plate to be cut;

[0040] Press down the vacuum adsorption fixture, start the suction cup to absorb the sheet;

[0041] Move the vacuum adsorption fixture to the first cutting station, and press down the vacuum adsorption fixture to the workbench;

[0042] The first cut, cut as Figure 6 As shown, multiple cutters cut in one direction at the same time; so that the plate cutting is divided into two parts: A1-A2-A3 and A4-A5-A6 except for waste;

[0043] The vacuum adsorption fixture rises and moves to the second cutting station...

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Abstract

The invention provides a planar-location vacuum absorption fixture used for cutting flat-plate-like parts. The planar-location vacuum absorption fixture comprises a base plate. A sucker is arranged on the base plate. An adjustable locating module is arranged on the periphery of the sucker. A blocking pin is arranged on the outer edge of the base plate. A ventilation pipeline is arranged on the base plate. A port used for being connected with a mechanical hand is arranged in the middle position of the base plate. The device overcomes the defects in the prior art, absorbs workpieces and provides auxiliary support simultaneously, enables the fixture to provide accurate location in certain directions at workpiece clamping time, so that requirements for position accuracy in the moving or machining process are ensured, and the phenomenon that the workpieces deviate from original positions due to the fact that the workpieces are separated or deform in the multiple machining processes is reduced to the greatest extent.

Description

technical field [0001] The invention relates to a vacuum adsorption fixture capable of accurate plane positioning for cutting flat plate parts, and belongs to the technical field of vacuum adsorption fixtures. Background technique [0002] The usual vacuum adsorption fixture can only play the role of adsorption, but cannot ensure the support of accurate positioning of the workpiece while adsorbing, making the processed workpiece unstable and affecting the processing accuracy. And the structure of existing fixture is generally all more complicated. Due to inconsistent installation accuracy, differences in the suction cup itself, and inconsistent vacuum negative pressure, the installation of the vacuum fixture cannot accurately guarantee the deformation and shape of the suction cup during vacuum pumping, which may cause the adsorbed workpiece to deviate from the expected position or even cause structural deformation. [0003] In the processing of large-area flat-plate parts, ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B26D7/02
Inventor 陈广锋李蕾黄青青李江华魏鑫
Owner DONGHUA UNIV
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