Crystal bar rounding processing method, device and system and storage medium

Abstract

The invention relates to the field of crystal bar machining, in particular to a crystal bar rounding machining method, device and system and a storage medium. The outer circumferences of the crystal bars are scanned, three-dimensional coordinate data # imgabs0 # of N crystal bars are obtained, an initial contour is formed, N is the number of sampling points, xi is circumferential coordinates, yi is axial coordinates, and zi is radial coordinates; establishing a first function model of the initial contour and the target contour about the removal amount; and the removal amount is determined based on the obtained initial contour and the target contour, and the crystal bar is ground. By adjusting the parameters of the grinding wheel, the technical effect of improving the crystal bar rolling machining efficiency is achieved.

Claims

1. A method for rounding a crystal rod, characterized in that: include: Clamping the crystal rod to rotate the crystal rod; Scan the outer circumference of the crystal rod to obtain the three-dimensional coordinate data of N crystal rods And form the initial contour, where N is the number of sampling points, x i is the circumferential coordinate, y i is the axial coordinate, z i is the radial coordinate; Establishing a first function model of the initial contour and the target contour with respect to the removal amount; The removal amount is determined based on the acquired initial profile and target profile and the first function model, and the crystal rod is ground.

2. A method for rounding a crystal ingot according to claim 1, characterized in that: The “establishing a first function model of the initial profile and the target profile with respect to the removal amount” includes: The grinding area is divided into n×m grids, and the first function model is: Where n is the number of circumferential grids, m is the number of axial grids, △h ij is the removal thickness of the grid center in row i and column j, D is the initial diameter and L is the length of the crystal rod.

3. A method for rounding a crystal ingot according to claim 1, characterized in that: Also includes: Establish a second function model of surface roughness Ra, grinding wheel speed w, grinding wheel pressure F, and grinding area S with respect to removal amount; The grinding wheel speed w and the grinding wheel pressure F are determined based on the obtained surface roughness Ra, grinding area S, and removal amount.

4. A method for rounding a crystal ingot according to claim 3, characterized in that: The second function model is: Among them, k1 is the process constant, K is the specific grinding energy coefficient; r s is the grinding wheel radius; δ is the single cutting depth.

5. A method for rounding a crystal ingot according to claim 3 or 4, characterized in that: It also includes detecting material state parameters and correcting the second function model to obtain a third function model: Establish the degree of softening of the crystal rod surface α and the average stress σ on the crystal rod surface avg , the third function model of surface roughness Ra, grinding wheel speed w, grinding wheel pressure F, and grinding area S on removal amount; Based on the obtained crystal ingot surface softening degree α and crystal ingot surface average stress σ avg , surface roughness Ra, grinding area S and the third function model to determine the grinding wheel speed w and grinding wheel pressure F.

6. A method for rounding a crystal ingot according to claim 5, characterized in that: The third function model is: Among them, k α k is the softening degree influence coefficient; σ is the surface stress influence coefficient.

7. A method for rounding a crystal ingot according to claim 5, characterized in that: Also includes: A functional model of the degree of softening of the crystal rod with respect to temperature is established, and the softening model is: Among them, T s is the surface temperature of the crystal rod, T0 is the softening starting temperature, and T1 is the characteristic temperature.

8. A crystal rod rounding processing device, characterized in that: The processing device comprises: A clamp assembly (100), the clamp assembly (100) being used to clamp both ends of a crystal rod and to drive the crystal rod to rotate; A laser assembly (200), the laser assembly (200) being arranged on the peripheral side of the crystal rod for scanning the outline of the crystal rod; and A grinding wheel assembly (300) is movable and used for grinding a crystal rod.

9. A crystal rod rounding processing system, characterized in that: The processing system comprises: A parameter acquisition module, configured to acquire an initial profile of the crystal ingot; A function establishment module, the function establishment module is used to build a first function model about the removal amount based on the initial contour and the target contour; A parameter adjustment module is used to adjust the grinding wheel parameters based on the first function model.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the processing method according to any one of claims 1 to 7 is implemented.

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