Crystal orientation rotation detection device and method for high-precision small-size cylindrical crystal

Abstract

The invention discloses a high-precision small-size cylindrical crystal orientation rotation detection device which is structurally characterized in that an upper adjusting gasket and a lower adjusting gasket are arranged on a base, a base back support is arranged on the upper adjusting gasket and the lower adjusting gasket, a back support bracket is arranged on the base back support, and a dial is arranged on the back support bracket. The front-back adjusting gasket is longitudinally arranged between the base back support and the back support support, the crystal is clamped between the fixing clamp and the V-shaped bearing clamp and then installed on the dial, the rotating handle is installed on the back of the dial, and the rotating handle is rotated to drive the dial to rotate. The 360-degree rotation test of the high-precision small-size cylindrical crystal is completed, and the problem that the crystal orientation test of the high-precision small-size cylindrical crystal cannot be completed on existing equipment is solved.

Description

Technical Field

[0001] The invention belongs to the technical field of crystal processing, and relates to a high-precision small-size cylindrical crystal crystal direction rotation detection device and method. Background Art

[0002] The performance of single crystal materials is anisotropic, and the optical properties are significant under specific crystal directions. Therefore, the determination of the orientation of single crystals is of great significance. An X-ray orientation meter is an optical detection instrument that uses the principle of X-ray diffraction to precisely measure the angle between the geometric surface of a crystal material and a certain crystal plane inside it. Traditional crystal orientation meters usually adsorb the crystal in a fixed position through vacuum adsorption, and after measuring one side, manually rotate it 90° or 180° for re-measurement. For small-sized cylindrical crystals that have been ultra-smoothly processed on both sides, if the bottom surface is adsorbed, the processed surface will be damaged; if the side surface is adsorbed, it cannot be stably fixed. Therefore, it is impossible to complete the crystal orientation test of high-precision small-sized cylindrical crystals under the traditional fixing method, so it is necessary to study the device and method for high-precision small-sized cylindrical crystal crystal orientation rotation detection. Summary of the invention

[0003] (I) Purpose of the invention

[0004] The purpose of the present invention is to provide a high-precision small-size cylindrical crystal crystal orientation rotation detection device and method, which can perform damage-free clamping of high-precision small-size cylindrical crystals, make the crystal test surface parallel to the surface of the rotating dial, align the center line of the crystal test surface with the center position of the rotating dial, perform precise positioning on an X-ray orientation instrument, and complete a 360° rotation test of the high-precision small-size cylindrical crystal around the center normal.

[0005] (II) Technical solution

[0006] In order to solve the above technical problems, the present invention provides a high-precision small-size cylindrical crystal crystal orientation rotation detection device, which includes: a fixed clamp 1, a V-shaped load-bearing clamp 2, a crystal 3, a base 4, an upper and lower adjustment gasket 5, a base back support 6, a back support bracket 7, a front and rear adjustment gasket 8, a dial 9, and a rotating handle 10; the upper and lower adjustment gasket 5 is arranged on the base 4, the base back support 6 is arranged on the upper and lower adjustment gasket 5, the back support bracket 7 is arranged on the base back support 6, the dial 9 is arranged on the back support bracket 7, the front and rear adjustment gasket 8 is longitudinally arranged between the base back support 6 and the back support bracket 7, the crystal 3 is clamped between the fixed clamp 1 and the V-shaped load-bearing clamp 2 and then installed on the dial 9, the rotating handle 10 is installed on the back of the dial 9, and the rotating handle 10 is rotated to drive the dial 9 to rotate.

[0007] The detection device further includes: a positioning bolt 11 connecting the scale plate 9, the back support bracket 7 and the rotating handle 10.

[0008] Among them, a V-shaped supporting opening is opened on the V-shaped supporting fixture 2, and the side of the crystal 3 is placed on the V-shaped supporting fixture 2. The side of the crystal 3 in contact with the V-shaped supporting fixture 2 is recorded as the lower side. A concave arc pressure opening is opened on the fixing fixture 1, and the fixing fixture 1 covers the side of the crystal 3. The side of the crystal 3 in contact with the fixing fixture 1 is recorded as the upper side.

[0009] Wherein, the fixing fixture 1 and the V-shaped bearing fixture 2 are both made of polytetrafluoroethylene material.

[0010] A fixing pin is arranged on the base 4 and is aligned with the positioning holes on the upper and lower adjustment gaskets 5 .

[0011] Among them, the positioning hole of the base of the base back support 6 is aligned with the fixing pin of the base 4, and the countersunk hole of the base of the base back support 6 is aligned with the through hole of the upper and lower adjustment gaskets 5 and the threaded hole of the base 4, and fixed and locked by two screws.

[0012] Among them, the positioning holes of the base back support 6 are aligned with the fixing pins of the front and rear adjustment gaskets 8, fixed and locked.

[0013] Among them, the threaded holes of the back support bracket 7 and the through holes of the front and rear adjustment gaskets 8 are aligned with the threaded holes of the base back support 6 and are fixed and locked by two screws.

[0014] Among them, the center hole of the scale plate 9 and the through hole of the back support bracket 7 are aligned, and the positioning bolt 11 passes through the center hole of the scale plate 9 and the through hole of the back support bracket 7.

[0015] The present invention also provides a high-precision small-size cylindrical crystal crystal rotation detection method, which comprises the following steps:

[0016] S1: Turn on the X-ray orientation instrument and preheat it for 10 minutes;

[0017] S2: Place the side surface of the crystal 3 on the V-shaped support fixture 2, and the side surface of the crystal 3 in contact with the V-shaped support fixture 2 is recorded as the lower side surface; place the fixing fixture 1 on the side surface of the crystal 3, and the side surface of the crystal 3 in contact with the fixing fixture 1 is recorded as the upper side surface;

[0018] Wherein, the size of crystal 3 is Φx×y mm, where 4≤x≤10, 4≤y≤20;

[0019] The fixing fixture 1 is located above the V-shaped supporting fixture 2, and fixes and locks the crystal 3 by two screws;

[0020] S3: Align the 4 arc-shaped holes of the base with the threaded holes of the X-ray orientation instrument, and fix and lock them with 2 screws;

[0021] S4: Align the positioning holes of the upper and lower adjustment gaskets 5 with the fixing pins of the base 4, fix and lock them;

[0022] S5: Align the positioning hole of the base of the base back support 6 with the fixing pin of the base 4, align the countersunk hole of the base of the base back support 6 with the through hole of the upper and lower adjustment gasket 5 and the threaded hole of the base 4, and fix and lock it with two screws;

[0023] S6: Align the positioning holes of the back support 6 of the base with the fixing pins of the front and rear adjustment gaskets 8, fix and lock them;

[0024] S7: Place the back support bracket 7 above the base back support 6, align the threaded holes of the back support bracket 7, the through holes of the front and rear adjustment gaskets 8 with the threaded holes of the base back support 6, and fix and lock them with two screws;

[0025] S8: Align the center hole of the scale plate 9 and the through hole of the back support bracket 7, pass the positioning bolt 11 through the center hole of the scale plate 9 and the through hole of the back support bracket 7, and tighten and lock it by rotating the handle 10;

[0026] S9: Put the crystal 3 fastened by the fixing fixture 1 and the V-shaped bearing fixture 2 into the dial 9, adjust the position of the upper and lower adjustment gaskets 5 and the front and rear adjustment gaskets 8, and place the crystal 3 in the test area;

[0027] S10: Turn on the high voltage of the X-ray orientation instrument;

[0028] S11: Turn on the X-ray, slowly turn the angle adjustment hand wheel forward and backward to find the maximum value of the current change, recorded as θ1;

[0029] S12: Block the X-rays, rotate the handle 10 to drive the dial 9 to rotate 90°, that is, rotate the crystal 3 90°.

[0030] S13: Turn on the X-ray, slowly turn the angle adjustment hand wheel forward and backward to find the maximum value of the current change, recorded as θ2;

[0031] S14: Block the X-rays, rotate the handle 10 to drive the dial 9 to rotate 90°, and at this time the position of the crystal 3 has rotated 180° compared with the initial measurement.

[0032] S15: Turn on the X-ray, slowly turn the angle adjustment hand wheel forward and backward to find the maximum value of the current change, recorded as θ3;

[0033] S16: Block the X-rays, rotate the handle 10 to drive the dial 9 to rotate 90°, and at this time the position of the crystal 3 has rotated 270° compared with the initial measurement.

[0034] S17: Turn on the X-ray, slowly turn the angle adjustment hand wheel forward and backward to find the maximum value of the current change, recorded as θ4;

[0035] S18: Block the X-rays, rotate the handle 10 to drive the dial 9 to rotate 90°, and the position of the crystal 3 has rotated 360° compared with the initial measurement, that is, it returns to the test starting point.

[0036] S19: Compare θ1, θ2, θ3, θ4 and find θ max1 ,θ max2 ;

[0037] S20: According to θ max1― θ max2 / 2 calculates the crystal orientation deviation value of crystal 3.

[0038] (III) Beneficial effects

[0039] The high-precision small-size cylindrical crystal rotation detection device and method provided by the above technical solution have the following beneficial effects:

[0040] (1) The side of the small cylindrical crystal is supported by a V-shaped fixture, and the fixing fixture is tightened by screws without contacting the high-precision bottom surface of the small cylindrical crystal, thus achieving damage-free clamping of the high-precision small cylindrical crystal. The bottom chamfer of the high-precision small cylindrical crystal is used as a reference to ensure the consistency of the clamping position each time;

[0041] (2) The dial and the knob handle are connected by positioning bolts to achieve the consistency of the test position of small-sized high-precision cylindrical crystals;

[0042] (3) The outer edge of the dial is engraved with precise angle scale lines. By rotating the knob handle, a 360° rotation test of a high-precision small-size cylindrical crystal can be achieved;

[0043] (4) It can meet the requirements of non-destructive clamping of high-precision small-size cylindrical crystals, realize the precise positioning of small-size cylindrical crystals on the X-ray orientation instrument, and complete the 360° rotation test of high-precision small-size cylindrical crystals, solving the problem that high-precision small-size cylindrical crystals cannot complete crystal orientation testing on existing equipment;

[0044] (5) Build a connection device suitable for existing X-ray orientation instruments, which can not only meet the testing requirements but also reduce the cost of purchasing equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0045] Figure 1 It is a front view of the crystal fastening device of the present invention;

[0046] Figure 2 It is a right side view of the device of the present invention;

[0047] Figure 3 This is the main view of the positioning bolt;

[0048] Figure 4 for Figure 3 Side view of. DETAILED DESCRIPTION

[0049] In order to make the purpose, content and advantages of the present invention more clear, the specific implementation methods of the present invention are further described in detail below in conjunction with the drawings and examples.

[0050] Reference Figures 1 to 4 As shown, the high-precision small-size cylindrical crystal crystal orientation rotation detection device of this embodiment includes: a fixed clamp 1, a V-shaped load-bearing clamp 2, a crystal 3, a base 4, an upper and lower adjustment gasket 5, a base back support 6, a back support bracket 7, a front and rear adjustment gasket 8, a dial 9, and a rotating handle 10; the upper and lower adjustment gasket 5 is arranged on the base 4, the base back support 6 is arranged on the upper and lower adjustment gasket 5, the back support bracket 7 is arranged on the base back support 6, the dial 9 is arranged on the back support bracket 7, the front and rear adjustment gasket 8 is longitudinally arranged between the base back support 6 and the back support bracket 7, the crystal 3 is clamped between the fixed clamp 1 and the V-shaped load-bearing clamp 2 and then installed on the dial 9, the rotating handle 10 is installed on the back of the dial 9, and the rotating handle 10 is rotated to drive the dial 9 to rotate.

[0051] The detection device also includes: a positioning bolt 11 connecting the scale plate 9, the back support bracket 7 and the rotating handle 10.

[0052] The process of the high-precision small-size cylindrical crystal rotation detection method of this embodiment is as follows:

[0053] S1: Turn on the X-ray orientation instrument and preheat it for 10 minutes;

[0054] S2: Place the side of the crystal 3 on the V-shaped support fixture 2, place the fixing fixture 1 on the side of the crystal 3, and place the fixing fixture 1 above the V-shaped support fixture 2. Fix and lock the crystal 3 with two screws;

[0055] S3: Align the 4 arc-shaped holes of the base with the threaded holes of the X-ray orientation instrument, and fix and lock them with 2 screws;

[0056] S4: Align the positioning holes of the upper and lower adjustment gaskets 5 with the fixing pins of the base 4, fix and lock them;

[0057] S5: Align the positioning hole of the base of the base back support 6 with the fixing pin of the base 4, align the countersunk hole of the base of the base back support 6 with the through hole of the upper and lower adjustment gasket 5 and the threaded hole of the base 4, and fix and lock it with two screws;

[0058] S6: Align the positioning holes of the back support 6 of the base with the fixing pins of the front and rear adjustment gaskets 8, fix and lock them;

[0059] S7: Place the back support bracket 7 above the base back support 6, align the threaded holes of the back support bracket 7, the through holes of the front and rear adjustment gaskets 8 with the threaded holes of the base back support 6, and fix and lock them with two screws;

[0060] S8: Align the center hole of the scale plate 9 and the through hole of the back support bracket 7, pass the positioning bolt 11 through the center hole of the scale plate 9 and the through hole of the back support bracket 7, and tighten and lock it by rotating the handle 10;

[0061] S9: Put the crystal 3 fastened by the fixing fixture 1 and the V-shaped bearing fixture 2 into the dial 9, adjust the position of the upper and lower adjustment gaskets 5 and the front and rear adjustment gaskets 8, and place the crystal 3 in the test area;

[0062] S10: Turn on the high voltage of the X-ray orientation instrument;

[0063] S11: Turn on the X-ray, slowly turn the angle adjustment hand wheel forward and backward to find the maximum value of the current change, record it as θ1, θ1 is 4′20″;

[0064] S12: Block the X-rays, rotate the handle 10 to drive the dial 9 to rotate 90°, that is, rotate the crystal 3 90°.

[0065] S13: Turn on the X-ray, slowly turn the angle adjustment hand wheel forward and backward to find the maximum value of the current change, record it as θ2, θ2 is 11′30″;

[0066] S14: Block the X-rays, rotate the handle 10 to drive the dial 9 to rotate 90°, and at this time the position of the crystal 3 has rotated 180° compared with the initial measurement.

[0067] S15: Turn on the X-ray, slowly turn the angle adjustment hand wheel forward and backward to find the maximum value of the current change, record it as θ3, θ3 is 3′40″;

[0068] S16: Block the X-rays, rotate the handle 10 to drive the dial 9 to rotate 90°, and at this time the position of the crystal 3 has rotated 270° compared with the initial measurement.

[0069] S17: Turn on the X-ray, slowly turn the angle adjustment hand wheel forward and backward to find the maximum value of the current change, record it as θ4, θ4 is 14′50″;

[0070] S18: Block the X-rays, rotate the handle 10 to drive the dial 9 to rotate 90°, and the position of the crystal 3 has rotated 360° compared with the initial measurement, that is, it returns to the test starting point.

[0071] S19: Compare θ1, θ2, θ3, θ4 and find θ max1 ,θ max2 They are 11′30″ and 14′50″ respectively;

[0072] S20: According to (θ max1― θ max2 ) / 2, the crystal orientation deviation of crystal 3 is calculated to be 1′40″.

[0073] This device is used to carry out damage-free clamping of high-precision small-size cylindrical crystals and accurately locate their test positions on the X-ray orientation instrument; through 360° precise rotation, the crystal orientation detection of high-precision small-size cylindrical crystals can be accurately completed.

[0074] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A high-precision small-size cylindrical crystal rotation detection device, characterized in that: include: A fixing fixture (1), a V-shaped bearing fixture (2), a crystal (3), a base (4), an up-and-down adjustment gasket (5), a base back support (6), a back support bracket (7), a front-and-back adjustment gasket (8), a dial (9), and a rotating handle (10); the up-and-down adjustment gasket (5) is arranged on the base (4), the base back support (6) is arranged on the up-and-down adjustment gasket (5), the back support bracket (7) is arranged on the base back support (6), the dial (9) is arranged on the back support bracket (7), the front-and-back adjustment gasket (8) is longitudinally arranged between the base back support (6) and the back support bracket (7), the crystal (3) is clamped between the fixing fixture (1) and the V-shaped bearing fixture (2) and then mounted on the dial (9), the rotating handle (10) is mounted on the back of the dial (9), and the rotating handle (10) is rotated to drive the dial (9) to rotate.

2. The high-precision small-size cylindrical crystal orientation rotation detection device according to claim 1, characterized in that: Also includes: The positioning bolt (11) connects the dial (9), the back support bracket (7) and the rotating handle (10).

3. The high-precision small-size cylindrical crystal rotation detection device according to claim 2, characterized in that: A V-shaped supporting opening is provided on the V-shaped supporting fixture (2), the side of the crystal (3) is placed on the V-shaped supporting fixture (2), and the side of the crystal (3) in contact with the V-shaped supporting fixture (2) is recorded as the lower side. A concave arc pressing opening is provided on the fixing fixture (1), and the fixing fixture (1) is pressed on the side of the crystal (3), and the side of the crystal (3) in contact with the fixing fixture (1) is recorded as the upper side.

4. The high-precision small-size cylindrical crystal orientation rotation detection device according to claim 3, characterized in that: The fixing fixture (1) and the V-shaped bearing fixture (2) are both made of polytetrafluoroethylene material.

5. The high-precision small-size cylindrical crystal rotation detection device according to claim 4, characterized in that: A fixing pin is arranged on the base (4) and is aligned with the positioning holes on the upper and lower adjustment gaskets (5).

6. The high-precision small-size cylindrical crystal rotation detection device according to claim 5, characterized in that: The positioning hole of the base of the base back support (6) is aligned with the fixing pin of the base (4), and the countersunk hole of the base of the base back support (6) is aligned with the through hole of the upper and lower adjustment gaskets (5) and the threaded hole of the base (4), and fixed and locked by two screws.

7. The high-precision small-size cylindrical crystal orientation rotation detection device according to claim 6, characterized in that: The positioning holes of the back support of the base (6) are aligned with the fixing pins of the front and rear adjustment gaskets (8) to fix and lock them.

8. The high-precision small-size cylindrical crystal rotation detection device according to claim 7, characterized in that: The threaded holes of the back support bracket (7) and the through holes of the front and rear adjustment gaskets (8) are aligned with the threaded holes of the back support of the base back support (6) and fixed and locked by two screws.

9. The high-precision small-size cylindrical crystal rotation detection device according to claim 8, characterized in that: The center hole of the scale plate (9) and the through hole of the back support bracket (7) are aligned, and the positioning bolt (11) passes through the center hole of the scale plate (9) and the through hole of the back support bracket (7).

10. A high-precision small-size cylindrical crystal rotation detection method, characterized in that: The following steps are involved: S1: Turn on the X-ray orientation instrument and preheat it for 10 minutes; S2: Place the side of the crystal (3) on the V-shaped support fixture (2), and the side of the crystal (3) in contact with the V-shaped support fixture (2) is recorded as the lower side; place the fixing fixture (1) on the side of the crystal (3), and the side of the crystal (3) in contact with the fixing fixture (1) is recorded as the upper side; Wherein, the size of the crystal (3) is Φx×y mm, where 4≤x≤10, 4≤y≤20; The fixing fixture (1) is located above the V-shaped supporting fixture (2) and fixes and locks the crystal (3) by means of two screws; S3: Align the arc-shaped hole of the base (4) with the threaded hole of the X-ray orientation instrument, and fix and lock it with two screws; S4: Align the positioning holes of the upper and lower adjustment gaskets (5) with the fixing pins of the base (4), fix and lock them; S5: Align the positioning hole of the base of the base back support (6) with the fixing pin of the base (4), align the countersunk hole of the base of the base back support (6) with the through hole of the upper and lower adjustment gaskets (5) and the threaded hole of the base (4), and fix and lock them with two screws; S6: Align the positioning holes of the back support of the base (6) with the fixing pins of the front and rear adjustment gaskets (8), fix and lock them; S7: Place the back support bracket (7) above the base back support (6), align the threaded holes of the back support bracket (7), the through holes of the front and rear adjustment gaskets (8) with the threaded holes of the base back support (6), and fix and lock them with two screws; S8: Align the center hole of the scale plate (9) and the through hole of the back support bracket (7), pass the positioning bolt (11) through the center hole of the scale plate (9) and the through hole of the back support bracket (7), and tighten and lock the screw by rotating the handle (10); S9: Place the crystal (3) fastened by the fixing fixture (1) and the V-shaped load-bearing fixture (2) into the dial (9), adjust the positions of the upper and lower adjustment gaskets (5) and the front and rear adjustment gaskets (8), and place the crystal (3) in the test area; S10: Turn on the high voltage of the X-ray orientation instrument; S11: Turn on the X-ray, slowly turn the angle adjustment hand wheel forward and backward to find the maximum value of the current change, recorded as θ1; S12: Block the X-rays, rotate the handle (10) to drive the dial (9) to rotate 90°, and thus rotate the crystal (3) 90°. S13: Turn on the X-ray, slowly turn the angle adjustment hand wheel forward and backward to find the maximum value of the current change, recorded as θ2; S14: Block the X-rays, rotate the handle (10) to drive the dial (9) to rotate 90°, and at this time, the position of the crystal (3) has rotated 180° compared with the initial measurement. S15: Turn on the X-ray, slowly turn the angle adjustment hand wheel forward and backward to find the maximum value of the current change, recorded as θ3; S16: Block the X-rays, rotate the handle (10) to drive the dial (9) to rotate 90°, and at this time, the position of the crystal (3) has rotated 270° compared with the initial measurement. S17: Turn on the X-ray, slowly turn the angle adjustment hand wheel forward and backward to find the maximum value of the current change, recorded as θ4; S18: Block the X-rays, rotate the handle (10) to drive the dial (9) to rotate 90°, and at this time the position of the crystal (3) has rotated 360° compared with the initial measurement, that is, it returns to the test starting point. S19: Compare θ1, θ2, θ3, θ4, and find θ. max1 、the max2 ; S20: According to (θ max1― θ max2 ) / 2 calculates the crystal orientation deviation value of crystal (3).

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