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Testing device for vertical and continuous loading at optional position of numerical control moving table

A technology of mobile workbench and test device, which is applied in the direction of measuring device, machine/structural component test, instrument, etc. It can solve the problems of material consumption, inability to achieve continuous loading, and inability to achieve vertical loading value, etc., to achieve accurate loading force The effect of control

Inactive Publication Date: 2015-04-15
TSINGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This loading method is relatively simple and easy to implement. It is a commonly used method at present, but this method needs to make more weight blocks. When simulating a large vertical load, it consumes materials and is inconvenient to carry.
In addition, the counterweight loading method can only load a fixed load at a time, and continuous loading cannot be achieved, and the loading position is limited by the position of the threaded hole on the workbench
[0004] Therefore, none of the above loading methods can continuously change the magnitude and position of the loading force in a timely and controllable manner according to the simulated vertical loading value required by the CNC mobile workbench.

Method used

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  • Testing device for vertical and continuous loading at optional position of numerical control moving table
  • Testing device for vertical and continuous loading at optional position of numerical control moving table
  • Testing device for vertical and continuous loading at optional position of numerical control moving table

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Experimental program
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Embodiment Construction

[0022] Below in conjunction with accompanying drawing, the test device that realizes vertical continuous loading at any position of the numerically controlled mobile workbench that the present invention proposes is described in detail:

[0023] Such as figure 1 and figure 2 As shown, the structure of the simulated numerically controlled mobile workbench of the present invention is: on the base 1, parallel first sliding guide rails 2 and second sliding guide rails 3 are arranged; A first ball screw 4 is arranged in parallel in the middle of the guide rail 3; the first ball screw 4 is supported by the first ball screw fixed support seat 5 and the first ball screw floating support seat 6 fixed on the base 1, and is The protruding end of a ball screw fixed support base 5 is directly connected with the first servo motor 8 through the first coupling 7, and the first servo motor 8 is fixed on the base 1 through the first motor seat 9; A first slide block 10 is arranged on a slide ...

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Abstract

The invention discloses a testing device for vertical and continuous loading at an optional position of a numerical control moving table and belongs to the technical field of mechanical manufacturing. The testing device comprises a simulated numerical control moving table, a gantry frame, a transverse moving mechanism and a vertical loading device. Position of a loading point and magnitude of vertical load are loading requirements need to be met by the loading device, and axial position control, transverse position control and vertical load control are achieved by a servo motor respectively. Feedback of magnitude of the vertical load is achieved by a pressure sensor, and closed-loop control of magnitude of vertical loading force is achieved by regulating compression amount of a loading spring. Vertical loading at an optional position of the moving table can be achieved, and magnitude of the loading force can be precisely controlled by the testing device.

Description

technical field [0001] The invention belongs to the technical field of mechanical manufacturing, and in particular relates to a vertical continuous loading test device at any position of a numerically controlled mobile workbench. Background technique [0002] The workbench is one of the important parts of the CNC machine tool, mainly used to install the workpiece and bear the load. As a widely used worktable for CNC machine tools at present, the CNC mobile worktable is mainly driven by a servo feed system, which has the advantages of high positioning accuracy, stable operation, small friction and low inertia. In order to ensure the dynamic performance of the CNC mobile worktable, it is necessary to study the dynamic design theory of the servo feed system, so some relevant experimental verification is required. In order to improve the reliability of the experiment, it is necessary to simulate the loading situation of the mobile workbench as much as possible. The mobile work...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01M99/00
Inventor 李铁民姜峣吴军关立文唐晓强
Owner TSINGHUA UNIV
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