Worktable speed control method without bending sensor for multi-wire cutting machine

A multi-wire cutting machine, speed control technology, applied in the direction of digital control, electrical program control, etc., to achieve the effect of high slicing efficiency, good surface parallelism, and uniform slicing thickness

Inactive Publication Date: 2017-01-18
XIANGTAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In order to solve the above-mentioned technical problems existing in the speed control of the workbench of the existing multi-wire cutting machine, the present invention proposes a speed control method for the workbench of the multi-wire cutting machine without bending sensors

Method used

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  • Worktable speed control method without bending sensor for multi-wire cutting machine
  • Worktable speed control method without bending sensor for multi-wire cutting machine
  • Worktable speed control method without bending sensor for multi-wire cutting machine

Examples

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Embodiment Construction

[0020] Such as figure 1 The structure of the sensorless workbench control system is shown, including man-machine interface, controller, workbench servo motor, spindle servo motor, take-up reel servo motor and pay-off reel servo motor. The field bus is used for high-speed transmission between the controller and each servo drive, and the industrial Ethernet communication is used between the man-machine interface and the controller. During operation, the operator first inputs the diameter of the cutting line, the initial diameter of the take-up and take-up reel, the size of the material to be cut, and the number of winding turns of the main shaft to the controller through the man-machine interface. Secondly, input the expected value of the included angle of the cutting surface and the linear speed of the system to the controller through the man-machine interface. The controller calculates the initial angular velocity of the spindle motor and the take-up and take-up line motor a...

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Abstract

The invention relates to a workbench speed control method for a non-bending sensor of a multi-wire cutting machine. The method comprises the following steps that the rotation angular speed omega 1(t) of a paying-off wheel motor is measured; the rotation angular speed omega 2(t) of a taking-up wheel motor is measured; the included angle beta between a cutting face of a workbench and the horizontal plane is calculated, and the calculation formula can be obtained in the specification; the difference value delta beta between the beta and a set expected included angle is obtained by comparing the beta and the set expected included angle, and a controller carries out PID control over the movement speed of the workbench according to the delta beta, so that the speed of the workbench is controlled automatically. According to the method, the speed of the workbench is automatically controlled through the non-bending sensor, and the slicing quality and the efficiency of the multi-wire cutting machine are optimum.

Description

technical field [0001] The invention relates to a worktable speed control method of a multi-wire cutting machine, in particular to a worktable speed control method of a multi-wire cutting machine without a bending sensor. Background technique [0002] Multi-wire cutting machine is the mainstream machine for cutting crystal, crystal silicon, sapphire and other hard and brittle materials. The workbench of the multi-wire cutting machine drives the workpiece to be cut. On the cutting surface formed by the cutting line, the workpiece to be cut is cut into hundreds or thousands of thin slices. The existing multi-wire cutting machine adopts two ways in the design of the positional relationship between the cutting line and the worktable. One is that the worktable is located above the cutting line, and the workpiece table moves from top to bottom when slicing; the other is that the worktable is located at the cutting edge. The workpiece table moves from bottom to top when slicing. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G05B19/416
Inventor 彭思齐李立根吴先豹
Owner XIANGTAN UNIV
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