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Flexible clamp for numerical control machining of large-scale thin-wall workpiece and clamping force servo control method thereof

A technology of large thin-walled parts and flexible fixtures, applied in manufacturing tools, servo motors, metal processing equipment, etc., can solve the problems of difficult to control clamping force, affecting machining accuracy, large clamping force of workpieces, etc., to avoid machining accuracy. , the effect of simple structure

Inactive Publication Date: 2015-05-06
UNIV OF JINAN
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] During the boring process of large thin-walled parts, due to the difficulty of controlling the clamping force, the workpiece is often subjected to excessive clamping force, which is prone to thin-wall deformation and seriously affects the machining accuracy

Method used

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  • Flexible clamp for numerical control machining of large-scale thin-wall workpiece and clamping force servo control method thereof
  • Flexible clamp for numerical control machining of large-scale thin-wall workpiece and clamping force servo control method thereof
  • Flexible clamp for numerical control machining of large-scale thin-wall workpiece and clamping force servo control method thereof

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Embodiment Construction

[0020] Refer to the attached figure 1 to attach Figure 5 The present invention will be described in detail below.

[0021] A flexible fixture for CNC machining of large thin-walled parts, including a servo hydraulic cylinder 1, a stand 2, a pressure plate 3, a pressure head 4, a boring guide device 5, a clamp body 6, and a positioning and pressing mechanism 7, and is characterized in that , the clamp body 6 is fixedly installed on the machine tool table, the stand 2 is arranged in the middle of the clamp body 6 and fixedly installed on the machine tool workbench, the servo hydraulic cylinder 1 is installed on the upper end of the stand 2, and the servo The piston rod of the hydraulic cylinder 1 runs through the stand 2 and is connected with the pressure plate 3, the pressure head 4 is installed on the pressure plate 3, the boring guide device 5 is installed at the front end of the clamp body 6, and the positioning and pressing There are several mechanisms 7 arranged on the ...

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Abstract

The invention provides a flexible clamp for numerical control machining of a large-scale thin-wall workpiece and a clamping force servo control method of the flexible clamp. The flexible clamp comprises a servo hydraulic cylinder, a stand frame, a pressing disk, a pressing head, a boring guide device, a clamp body and multiple locating and compressing mechanisms. The flexible clamp is characterized in that the clamp body is fixedly installed on a worktable of a machine tool, the stand frame is arranged in the middle of the clamp body and fixedly installed on the worktable of the machine tool, the servo hydraulic cylinder is installed at the upper end of the stand frame, a piston rod of the servo hydraulic cylinder penetrates through the stand frame to be connected with the pressing disk, the pressing head is installed on the pressing disk, the boring guide device is installed at the front end of the clamp body, and the multiple locating and compressing mechanisms are arranged on the clamp body. The flexible clamp for numerical control machining of the large-scale thin-wall workpiece and the clamping force servo control method of the flexible clamp have the advantages that the structure is simple, the appropriate clamping force exerted on the workpiece can be determined according to the structural characteristics and the materials of the workpiece, and the situation that the machining precision of the workpiece is influenced by too large clamping force is avoided.

Description

technical field [0001] The invention relates to the technical field of mechanical processing, in particular to a flexible fixture for numerically controlled machining of large thin-walled parts and a clamping force servo control method based on the fixture. Background technique [0002] During the boring process of large thin-walled parts, due to the difficulty of controlling the clamping force, the workpiece is often subjected to excessive clamping force, which is prone to thin-wall deformation and seriously affects the machining accuracy. Contents of the invention [0003] In order to overcome the above-mentioned technical problems, the present invention provides a flexible fixture and its clamping force servo control method for large-scale thin-walled parts numerically controlled machining, so as to prevent workpieces from being affected by excessive clamping force on machining accuracy. [0004] The technical solution adopted by the present invention to solve the techn...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23Q3/08F15B11/028
CPCB23Q3/065B23Q3/082F15B11/028
Inventor 曹树坤张琨曹翀刘士平孟文静蒋楠孔强
Owner UNIV OF JINAN
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