Crystal bar detection method and detection device

Abstract

The invention discloses a crystal bar detection method and device, and the method comprises the steps: obtaining the surface data of a crystal bar, and finding a crystal line; primary cutting is conducted on the crystal bar, a first detection value and a second detection value on one surface are obtained, if the first detection value is equal to the second detection value, secondary cutting is conducted on the crystal bar, and a third detection value and a fourth detection value of each surface are obtained; calculating to obtain a first extreme value between every two counterpoint surfaces; the fourth detection values of every two alignment surfaces are compared, and a second extreme value between every two alignment surfaces is obtained through calculation; acquiring a first verification value and a second verification value of one surface, acquiring a third verification value and a fourth verification value on the adjacent surface when the first verification value is equal to the second detection value, and calculating an inclination angle of the adjacent surface; and if the inclination angle is 0, the perpendicularity of the two detected adjacent surfaces is qualified. According to the invention, the verticality of the crystal bar and the detection precision of the molded surface can be improved.

Description

Technical Field

[0001] The present invention relates to the technical field of crystal rod processing, and in particular to a crystal rod detection method and a detection device. Background Art

[0002] In the field of crystal rod processing technology, in order to process the crystal rod into the actual required product, the crystal rod needs to be squared. In the process of squaring the crystal rod, in order to ensure that the shape of the crystal rod and the verticality of each surface of the crystal rod can meet the production requirements, it is necessary to manually repeatedly test the extreme difference and verticality of the cut surface. Taking the verticality test as an example, if the verticality of the cut surface does not meet the production requirements, the tool needs to be repeatedly adjusted until the verticality of the cut surface meets the requirements. Since the verticality test of the above-mentioned crystal rod needs to be performed repeatedly by manual labor, the efficiency of its verticality detection is low, which affects production efficiency, and the detection accuracy is insufficient. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a method and a device for detecting a crystal rod, so as to improve the detection efficiency of the verticality of the crystal rod and the shape of the crystal rod.

[0004] In order to solve the above technical problems, the technical solution adopted by the present invention is: A method for detecting a crystal rod, characterized in that it comprises the following steps: S1: Obtain the surface data of the crystal rod and find the crystal line; S2: Cut the crystal rod once, obtain a first detection value and a second detection value on one of the surfaces in a first direction, and if the first detection value is equal to the second detection value, execute S3; S3: cutting the crystal rod a second time to obtain four surfaces arranged in sequence, and obtaining a third detection value and a fourth detection value of each surface in the second direction respectively; S4: respectively comparing the third detection values ​​of every two alignment surfaces, and calculating and obtaining a first extreme value between every two alignment surfaces; Comparing the fourth detection values ​​of each two alignment surfaces respectively, and calculating the second extreme value between each two alignment surfaces; S5: Obtain a first verification value and a second verification value of one of the surfaces, and when the first verification value is equal to the second detection value, obtain a third verification value and a fourth verification value on an adjacent surface, and calculate the inclination angle of the adjacent surface; If the inclination angle is 0, the perpendicularity of the two adjacent surfaces being tested is qualified.

[0005] In order to solve the above technical problems, another technical solution adopted by the present invention is: A detection device used in a method for detecting a crystal rod, comprising a column and a first cutting assembly; The column has a first plane, and the first cutting assembly has a second plane; The first plane and the second plane are perpendicular to each other; A first detection member and a second detection member are disposed on the first plane, and a third detection member and a fourth detection member are disposed on the second plane.

[0006] The beneficial effect of the present invention is that multiple different detection points are set between two mutually perpendicular planes to obtain data between two adjacent surfaces. According to the acquired data, the crystal line can be determined for accurate cutting, and the range between the two alignment surfaces can be calculated according to the acquired data to determine whether the shape of the cross section of the crystal rod meets the production requirements, and the verticality between the two adjacent surfaces can be quickly calculated according to the acquired data. Compared with the prior art, the crystal line confirmation of the crystal rod and the detection of the shape and verticality of the crystal rod are more efficient and accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0007] Figure 1 The structure of the crystal rod detection device in the present invention is shown in FIG. Figure 1 (Before the crystal rod is squared); Figure 2 The structure of the crystal rod detection device in the present invention is shown in FIG. Figure 2 (after one cut); Figure 3 The structure of the crystal rod detection device in the present invention is shown in FIG. Figure 3 (before secondary cutting); Figure 4 The structure of the crystal rod detection device in the present invention is shown in FIG. Figure 4 ; Figure 5 The structure of the crystal rod detection device in the present invention is shown in FIG. Figure 5 (The cutting inclination angle is 0 after the second cutting); Figure 6 The structure of the crystal rod detection device in the present invention is shown in FIG. Figure 6 (The state where the tilt angle is not 0).

[0008] Description of labels: 1. Column; 11. First plane; 2. First cutting assembly; 21. Second plane; 5. First detection piece; 6. Second detection piece; 7. Third detection piece; 8. Fourth detection piece; 9. Second cutting assembly; 10. Crystal rod; 20. Clamping and rotating mechanism. DETAILED DESCRIPTION

[0009] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0010] Please refer to Figure 1 as well as Figure 2 A crystal rod detection device includes a column 1 and a first cutting component 2; the column 1 has a first plane 11, and the first cutting component 2 has a second plane 21; the first plane 11 and the second plane 21 are perpendicular to each other; a first detection component 5 and a second detection component 6 are arranged on the first plane 11, and a third detection component 7 and a fourth detection component 8 are arranged on the second plane 21.

[0011] It can be understood that the present invention arranges a plurality of detection parts on two mutually perpendicular planes respectively, so as to obtain at least two data of each surface of the crystal rod 10 during the process of squaring the crystal rod 10, thereby being able to quickly find the position of the crystal line of the crystal rod 10, and judge the verticality between adjacent surfaces of the crystal rod 10 and the cross-sectional shape of the crystal rod 10. Compared with the prior art, the detection accuracy is higher and the detection efficiency is also higher.

[0012] In some embodiments, the first angle formed between the plane where the cutting end of the first cutting component 2 is located and the first plane 11 is adjustable, and the cutting component can be adjusted to a suitable position for cutting by adjusting the angle of the first angle.

[0013] In some embodiments, a second cutting assembly 9 is further included; the second cutting assembly 9 is arranged opposite to the first cutting assembly 2, and the second angle formed between the plane where the cutting end of the second cutting assembly 9 is located and the first plane 11 is adjustable. Similarly, the second angle is adjustable so that the second cutting assembly 9 can be adjusted to a suitable position for cutting. The cutting ends of the first cutting assembly 2 and the second cutting assembly 9 can reciprocate in the vertical direction, and correspondingly, the third detection member 7 and the fourth detection member 8 are arranged at the cutting end of the first cutting assembly 2 so that the third detection member 7 and the fourth detection member 8 can reciprocate in the vertical direction.

[0014] In some embodiments, a clamping and rotating mechanism 20 is further included; the first cutting assembly 2, the second cutting assembly 9 and the column 1 are enclosed to form a cutting space; the clamping and rotating mechanism 20 is arranged in the cutting space. The rotating clamping mechanism is used to clamp the crystal rod 10 and control the crystal rod 10 to rotate in the cutting space, thereby changing the cutting position, and at the same time, the four detection components can respectively obtain data of the corresponding surfaces, reducing the difficulty of obtaining surface data.

[0015] A method for detecting a crystal rod comprises the following steps: S1: Acquire surface data of the crystal rod 10 and find the crystal line; S2: cutting the crystal rod 10 once, obtaining a first detection value and a second detection value on one of the surfaces in a first direction, and if the first detection value is equal to the second detection value, executing S3; S3: cutting the crystal rod 10 a second time to obtain four surfaces arranged in sequence, and obtaining a third detection value and a fourth detection value of each surface in the second direction respectively; S4: respectively comparing the third detection values ​​of each two alignment surfaces to calculate a first extreme value between each two alignment surfaces; respectively comparing the fourth detection values ​​of each two alignment surfaces to calculate a second extreme value between each two alignment surfaces; wherein the alignment surfaces refer to two surfaces in relative positions; S5: Obtain a first verification value and a second verification value of one of the surfaces. When the first verification value is equal to the second verification value, obtain a third verification value and a fourth verification value on an adjacent surface, and calculate the inclination angle α of the adjacent surface; if the inclination angle α is 0, the verticality of the two adjacent surfaces being tested is qualified.

[0016] The first extreme value is the difference between the third detection values ​​of the two alignment surfaces, and the second extreme value is the difference between the fourth detection values ​​of the two alignment surfaces.

[0017] Specifically, the first detection point, the second detection point, the third detection point and the fourth detection point respectively correspond to the first detection member 5, the second detection member 6, the third detection member 7 and the fourth detection member 8. The first detection member 5, the second detection member 6, the third detection member 7 and the fourth detection member 8 are all laser sensors.

[0018] It can be understood that by setting a plurality of different detection points between two mutually perpendicular planes to obtain data between two adjacent surfaces, the crystal line can be determined based on the acquired data for accurate cutting, and the range between the two alignment surfaces can be calculated based on the acquired data to determine whether the shape of the cross section of the crystal rod 10 meets the production requirements, and the verticality between the two adjacent surfaces can be quickly calculated based on the acquired data. Compared with the prior art, the crystal line confirmation of the crystal rod 10 and the detection of the profile and verticality of the crystal rod 10 are more efficient and accurate.

[0019] In some embodiments, step S1 includes the following steps: S11: define a first detection point on the first plane 11, obtain initial data of the first detection point, obtain a first initial value, rotate the crystal rod 10, and continuously obtain the first initial value, establish a curve, and determine the positions of two crystal lines on the crystal rod 10 according to the four lowest points in the curve. Specifically, the shape of the crystal rod 10 before square root is as follows: Figure 1 The cylinder shown in FIG. 1 has four protrusions on the surface of the cylinder that are centrally symmetrical. Figure 1, the two crystal lines determined on the crystal rod 10 are parallel to each other, and the two crystal lines pass through the two protrusions at the same time. Preferably, the first detection member 5 is centrally arranged in the second direction, that is, the axis of the first detection member 5 is parallel to the first direction, and the axis of the first detection member 5 should be able to pass through the axis of the crystal rod 10, so that the first detection member 5 can obtain more accurate surface data of the crystal rod 10, establish an accurate curve, and then more accurately find the location of the crystal line, ensuring the accuracy of the square root once.

[0020] In some embodiments, the specific steps of step S2 are: cutting the crystal rod 10 once, defining a second detection point on the first plane 11, obtaining a first detection value and a second detection value on one of the surfaces from the first detection point and the second detection point respectively, and if the first detection value is equal to the second detection value, executing S3. Since the end face of the crystal rod 10 is relatively smooth, it is easy to deviate at a certain angle relative to the clamping rotating mechanism 20 during the rotation of the crystal rod 10. By obtaining the first detection value and the second detection value of one of the surfaces, the surface is kept parallel to the first plane 11 for cutting, that is, the first detection value is equal to the second detection value, which can maximize the verticality between the two adjacent surfaces.

[0021] In some embodiments, step S3 specifically includes: defining a third detection point and a fourth detection point on the second plane 21, the first plane 11 and the second plane 21 are perpendicular to each other; performing a second cut on the crystal rod 10 to obtain four surfaces arranged in sequence, and obtaining a third detection value and a fourth detection value of each surface in the second direction; wherein the second direction is parallel to the second plane 21. The acquisition of the third detection value and the fourth detection value is used to determine the extreme value between the two alignment surfaces, and then determine the parallelism of the two alignment surfaces, and by comparing the extreme values ​​between the two groups of alignment surfaces, it is determined whether the cross section of the crystal rod 10 is square. If so, the crystal rod 10 meets the production requirements. If not, the surface of the crystal rod 10 is further polished in the next process according to the values ​​of the first extreme difference and / or the second extreme difference until the cross section of the crystal rod 10 is square (that is, the first extreme difference and the second extreme difference are both equal to 0).

[0022] Furthermore, step S31 is also included: dividing the crystal rod 10 into three equal parts in the axial direction of the crystal rod 10 to obtain upper, middle and lower regions, and obtaining third detection values ​​and fourth detection values ​​in the upper, middle and lower regions of each surface respectively, and performing a horizontal comparison on the values ​​obtained in the upper, middle and lower regions to determine whether the cross-sectional shape of the crystal rod 10 in the upper, middle and lower regions is square.

[0023] In some embodiments, step S4 further includes step S41: calculating the average value between the first extreme value and the second extreme value of each surface, and calculating the third extreme value according to the average value between each two aligned surfaces. By calculating the average value between the first extreme value and the second extreme value, the extreme value at the middle position of the corresponding surface is obtained to more accurately obtain the data of the corresponding surface. The details are as follows:

[0024] Among them, X0 is the average value, X1 is the first extreme value, and X2 is the second extreme value; In some embodiments, in step S5, if the angle of the inclination angle α is not 0, the cutting angle is adjusted according to the angle of the inclination angle α, that is, the inclination angle of the first cutting component 2 and / or the second cutting component 9 is adjusted. In fact, the inclination angle adjustment range of the first cutting component 2 and the second cutting component 9 is adjusted according to the complementary angle β of the inclination angle α.

[0025] Specifically, the inclination angle α and the complementary angle β are calculated by the following formula: ; β=90°-α.

[0026] Wherein, L is the length of the crystal rod 10 in the first direction, X3 is the third verification value, and X4 is the fourth verification value.

[0027] When X3- X4>0, the complementary angle β is an obtuse angle, and when X3- X4<0, the complementary angle β is an acute angle.

[0028] Embodiment 1 of the present invention is: A crystal rod detection device includes a column 1 and a first cutting component 2; the column 1 has a first plane 11, and the first cutting component 2 has a second plane 21; the first plane 11 and the second plane 21 are perpendicular to each other; a first detection component 5 and a second detection component 6 are arranged on the first plane 11, and a third detection component 7 and a fourth detection component 8 are arranged on the second plane 21.

[0029] In this embodiment, the first angle formed between the plane where the cutting end of the first cutting component 2 is located and the first plane 11 is adjustable, and a second cutting component 9 is also included; the second cutting component 9 is arranged opposite to the first cutting component 2, and the second angle formed between the plane where the cutting end of the second cutting component 9 is located and the first plane 11 is adjustable.

[0030] In this embodiment, a clamping and rotating mechanism 20 is further included; the first cutting assembly 2, the second cutting assembly 9 and the column 1 together form a cutting space; and the clamping and rotating mechanism 20 is disposed in the cutting space.

[0031] The working principle of the present invention is: S1: Acquire surface data of the crystal rod 10 and find the crystal line; S11: defining a first detection point on the first plane 11, acquiring initial data of the first detection point, obtaining a first initial value, rotating the crystal rod 10, and continuously acquiring the first initial value, establishing a curve, and determining the positions of two crystal lines on the crystal rod 10 according to the four lowest points in the curve.

[0032] S2: cutting the crystal rod 10 once, obtaining a first detection value and a second detection value on one of the surfaces in a first direction, and if the first detection value is equal to the second detection value, executing S3; Specifically, the crystal rod 10 is cut once, a second detection point is defined on the first plane 11, a first detection value and a second detection value on one of the surfaces are obtained from the first detection point and the second detection point respectively, and if the first detection value is equal to the second detection value, S3 is executed; S3: cutting the crystal rod 10 a second time to obtain four surfaces arranged in sequence, and obtaining a third detection value and a fourth detection value of each surface in the second direction respectively; Specifically, a third detection point and a fourth detection point are defined on the second plane 21, and the first plane 11 and the second plane 21 are perpendicular to each other; the crystal rod 10 is cut twice to obtain four surfaces arranged in sequence, and a third detection value and a fourth detection value of each surface are obtained in the second direction; wherein the second direction and the second plane 21 are parallel to each other.

[0033] Step S31: dividing the crystal ingot 10 into three equal parts in the axial direction of the crystal ingot 10 to obtain three regions of upper, middle and lower regions, respectively obtaining third detection values ​​and fourth detection values ​​in the upper, middle and lower regions of each surface, and performing a horizontal comparison of the values ​​obtained in the upper, middle and lower regions to determine whether the cross-sectional shapes of the crystal ingot 10 in the upper, middle and lower regions are square; S4: respectively comparing the third detection values ​​of each two alignment surfaces to calculate a first extreme value between each two alignment surfaces; respectively comparing the fourth detection values ​​of each two alignment surfaces to calculate a second extreme value between each two alignment surfaces; wherein the alignment surfaces refer to two surfaces in relative positions; Step S41: Calculate the average value between the first extreme value and the second extreme value of each surface, and calculate the third extreme value based on the average value between every two aligned surfaces. By calculating the average value between the first extreme value and the second extreme value, the extreme value at the middle position of the corresponding surface is obtained to more accurately obtain the data of the corresponding surface. The details are as follows:

[0034] Among them, X0 is the average value, X1 is the first extreme value, and X2 is the second extreme value; The third extreme value is the difference between the average values ​​of the two alignment surfaces.

[0035] S5: Obtain a first verification value and a second verification value of one of the surfaces. When the first verification value is equal to the second verification value, obtain a third verification value and a fourth verification value on the adjacent surface, and calculate the inclination angle α of the adjacent surface; if the inclination angle α is 0, the verticality of the two adjacent surfaces being tested is qualified, such as Figure 5 As shown; if the angle of the inclination angle α is not 0, the cutting angle is adjusted according to the angle of the inclination angle α, such as Figure 6 shown.

[0036] Specifically, the inclination angle α and the complementary angle β are calculated by the following formula: ; β=90°-α.

[0037] Wherein, L is the length of the crystal rod in the first direction, X3 is the third verification value, and X4 is the fourth verification value.

[0038] When X3- X4>0, the complementary angle β is an obtuse angle, and when X3- X4<0, the complementary angle β is an acute angle.

[0039] In summary, the present invention provides a crystal rod detection method and detection device, which respectively obtain data from different surfaces of the crystal rod through four detection parts to determine the crystal line position of the crystal rod to achieve accurate squaring, and can obtain data from each surface to judge the cross-section of the crystal rod and the verticality between adjacent surfaces after the crystal rod is squared. Compared with the existing technology, the detection accuracy is higher and the detection efficiency is higher.

[0040] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A method for detecting a crystal rod, characterized in that: The following steps are involved: S1: Obtain the surface data of the crystal rod and find the crystal line; S2: Cut the crystal rod once, obtain a first detection value and a second detection value on one of the surfaces in a first direction, and if the first detection value is equal to the second detection value, execute S3; S3: cutting the crystal rod a second time to obtain four surfaces arranged in sequence, and obtaining a third detection value and a fourth detection value of each surface in the second direction respectively; S4: respectively comparing the third detection values ​​of every two alignment surfaces, and calculating and obtaining a first extreme value between every two alignment surfaces; Comparing the fourth detection values ​​of each two alignment surfaces respectively, and calculating the second extreme value between each two alignment surfaces; S5: Obtain a first verification value and a second verification value of one of the surfaces, and when the first verification value is equal to the second detection value, obtain a third verification value and a fourth verification value on an adjacent surface, and calculate the inclination angle of the adjacent surface; If the inclination angle is 0, the perpendicularity of the two adjacent surfaces being tested is qualified.

2. A method for detecting a crystal rod according to claim 1, characterized in that: The step S1 comprises the following steps: S11: defining a first detection point on a first plane, acquiring initial data of the first detection point, obtaining a first initial value, rotating the crystal rod, and continuously acquiring the first initial value, establishing a curve, and determining positions of two crystal lines on the crystal rod according to four lowest points in the curve.

3. A method for detecting a crystal rod according to claim 1, characterized in that: The specific steps of step S2 are: The crystal rod is cut once, a second detection point is defined on the first plane, a first detection value and a second detection value on one of the surfaces are obtained from the first detection point and the second detection point respectively, and if the first detection value is equal to the second detection value, S3 is executed.

4. A method for detecting a crystal rod according to claim 1, characterized in that: The step S3 specifically includes defining a third detection point and a fourth detection point on a second plane, wherein the first plane is perpendicular to the second plane; Performing secondary cutting on the crystal rod to obtain four surfaces arranged in sequence, and obtaining a third detection value and a fourth detection value of each surface in the second direction respectively; The second direction and the second plane are parallel to each other.

5. The method for detecting a crystal rod according to claim 1, characterized in that: The step S4 further includes a step S41: calculating the average value between the first extreme value and the second extreme value of each surface, and calculating the third extreme value according to the average value between every two aligned surfaces.

6. A method for detecting a crystal rod according to claim 1, characterized in that: In the step S5, if the angle of the inclination is not 0, the cutting angle is adjusted according to the angle of the inclination.

7. A detection device used in the detection method of a crystal rod according to any one of claims 1 to 6, characterized in that: It includes a column and a first cutting assembly; The column has a first plane, and the first cutting assembly has a second plane; The first plane and the second plane are perpendicular to each other; A first detection member and a second detection member are disposed on the first plane, and a third detection member and a fourth detection member are disposed on the second plane.

8. The detection device according to claim 7, characterized in that: A first angle formed between a plane where the cutting end of the first cutting assembly is located and the first plane is adjustable.

9. The detection device according to claim 7, characterized in that: Also included is a second cutting assembly; The second cutting assembly is arranged opposite to the first cutting assembly, and a second angle formed between a plane where the cutting end of the second cutting assembly is located and the first plane is adjustable.

10. The detection device according to claim 9, characterized in that: Also includes a clamping and rotating mechanism; The first cutting assembly, the second cutting assembly and the column together form a cutting space; The clamping and rotating mechanism is arranged in the cutting space.

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