Curved surface crystal orientation detection clamp for sapphire crystal bar

Abstract

The utility model discloses a curved-surface crystal orientation detection clamp for a sapphire crystal bar, and relates to the technical field of sapphire crystal bar detection. The sapphire crystal bar body lateral curved surface crystal orientation detection device solves the problems that an existing sapphire crystal bar body lateral curved surface crystal orientation detection device needs multiple times of repeated detection and is low in detection efficiency. A tray, a rotating shaft, a triangular mold and a base are sequentially and coaxially arranged from top to bottom in the vertical direction, the top end of the base is fixedly connected with the bottom end of the triangular mold, the triangular mold is rotationally connected with the tray through the rotating shaft, and locking structures used for fixing the tray are arranged on the base and the triangular mold. The vacuum pipeline sequentially penetrates through the tray, the rotating shaft, the triangular mold and the base, one end of the vacuum pipeline penetrates through the center of the upper surface of the tray, and the other end of the vacuum pipeline penetrates through the side face of the base. The device is used for detecting the crystal orientation of the lateral curved surface of the sapphire crystal bar and positioning and marking the crystal orientation surface.

Description

Technical Field

[0001] The utility model relates to the technical field of sapphire crystal rod detection, in particular to a curved surface crystal orientation detection fixture for a sapphire crystal rod. Background Art

[0002] Sapphire is composed of aluminum oxide (Al2O3), which is composed of three oxygen atoms and two aluminum atoms bonded by covalent bonds. Its crystal structure is a hexagonal lattice structure. Its commonly used facets are A-Plane, C-Plane and R-Plane. Since sapphire has a wide optical penetration band and has good light transmittance from near-ultraviolet light to mid-infrared light, it is widely used in optical components, infrared fixtures, high-intensity laser lens materials and mask materials. It has the characteristics of high temperature resistance, corrosion resistance, high hardness, high light transmittance, etc., so it is often used as a material for optoelectronic components and has also become an important basic material in industry.

[0003] With the continuous development of the sapphire product market and the increase in demand for sapphire products, the production and quality requirements of sapphire products in various application fields and markets are constantly increasing. As the main sapphire basic product, sapphire crystal rods play a very important role in the sapphire product industry chain. During the processing of the guide edge of the sapphire crystal rod, it is necessary to detect and mark the crystal direction of the side surface of the rod body. Since the detection of the side surface of the crystal rod is more difficult than that of the plane, and the side crystal direction has multiple directions, the detection method currently used in the industry requires repeated detection, and the detection efficiency is low.

[0004] Therefore, there is an urgent need for a fixture that can efficiently detect the crystal orientation of the lateral curved surface of a sapphire crystal rod. Utility Model Content

[0005] The utility model aims to solve the problem that the existing crystal orientation detection equipment for the lateral curved surface of the sapphire crystal rod needs to detect repeatedly and has low detection efficiency, and further provides a sapphire crystal rod curved surface crystal orientation detection fixture.

[0006] The technical solution of the utility model is:

[0007] A curved crystal orientation detection fixture for a sapphire crystal rod comprises a base 1, a triangular mold 2, a rotating shaft 3, a tray 4, a locking structure and a vacuum pipe 7. The tray 4, the rotating shaft 3, the triangular mold 2 and the base 1 are coaxially arranged in sequence from top to bottom in the vertical direction. The base 1 is a block structure with a square cross-section. The top of the base 1 is fixedly connected to the bottom of the triangular mold 2. The triangular mold 2 and the tray 4 are rotatably connected via the rotating shaft 3. The base 1 and the triangular mold 2 are provided with a locking structure for fixing the tray 4. The vacuum pipe 7 passes through the tray 4, the rotating shaft 3, the triangular mold 2 and the base 1 in sequence. One end of the vacuum pipe 7 opens through the center position of the upper surface of the tray 4, and the other end of the vacuum pipe 7 opens through the side of the base 1.

[0008] Furthermore, the tray 4, the rotating shaft 3 and the triangular mold 2 are all processed with coaxially arranged central through holes, and the base 1 is processed with an L-shaped through hole, the vertical hole section of the L-shaped through hole is coaxially arranged with the central through hole of the triangular mold 2, the upper end surface of the vacuum pipe 7 is flush with the upper surface of the tray 4, and the lower end of the vacuum pipe 7 passes through the tray 4, the rotating shaft 3 and the central through hole of the triangular mold 2, and the vertical hole section and horizontal pipe section of the L-shaped through hole of the base 1 from top to bottom.

[0009] Furthermore, the triangular mold 2 is a regular triangular prism structure, the radius of the inscribed circle of the upper base of the triangular mold 2 is equal to the radius of the tray 4, and three vertically arranged arc surfaces are processed at the three edges of the triangular mold 2 respectively, the radii of the three arc surfaces are equal, and the radius of the circle where the three arc surfaces are located is equal to the radius of the crystal rod.

[0010] Furthermore, the locking structure includes a locking handle 5 and a locking pin 6. A vertically arranged eccentric pin hole is processed on the triangular mold 2. An inverted T-shaped pin hole is processed on the triangular mold 2. The vertical hole section of the T-shaped pin hole is coaxially arranged with the eccentric pin hole. The end rod of the locking handle 5 can be rotatably inserted in the horizontal hole section of the T-shaped pin hole. Two grooves with a semicircular longitudinal section are processed on the side of the end rod of the locking handle 5. The bottom end of the locking pin 6 can be slidably vertically inserted in the vertical hole sections of the eccentric pin hole and the T-shaped pin hole, and the axis of the locking pin 6 and the center of the groove are located on the same straight line.

[0011] Furthermore, the locking handle 5 is a T-shaped rod structure, and the two grooves on the side of the end rod of the locking handle 5 are arranged axially symmetrically with the axis of the locking handle 5 as the center. When the head end rod of the locking handle 5 is located in the vertical direction, the locking pin 6 descends into the groove; when the head end rod of the locking handle 5 is located in the horizontal direction, the locking pin 6 rises to the lower surface of the tray 4.

[0012] Furthermore, the bottom end of the locking pin 6 is a semi-spherical surface, and the top end of the locking pin 6 is a flat surface.

[0013] Furthermore, the maximum vertical distance between the bottom of the groove of the locking handle 5 and the lower surface of the tray 4 is X1, the height of the locking pin 6 is X2, the depth of the groove of the locking handle 5 is X3, and X1<X2+X3.

[0014] Furthermore, a rubber pad is provided on the upper surface of the tray 4 .

[0015] Furthermore, the positive direction of the base 1 is marked with a centering mark.

[0016] Compared with the prior art, the utility model has the following effects:

[0017] 1. The utility model can detect and mark all the crystal orientation surfaces on the side of the crystal rod at one time, and the detection efficiency is high. During operation, first place the base 1 on the X-ray orientation instrument operating table so that the edge of the base 1 fits with the patch board; then place the crystal rod vertically on the tray 4 so that the curved surface of the side rod body is tangent to the patch board of the orientation instrument; further, the staff manually rotates the tray 4 so that the tray 4 drives the crystal rod to rotate until the orientation instrument detects the crystal orientation on the side of the crystal rod; at the same time, rotate the locking handle 5 so that the top of the locking pin 6 rises and contacts the lower surface of the tray 4, thereby fixing the tray 4; at this time, the staff draws three straight lines on the end face of the crystal rod along the three edges of the triangular mold 2, and the three straight lines are the crystal orientation surfaces on the side of the crystal rod.

[0018] 2. The clamping and fixing method of the crystal rod of the utility model is vacuum adsorption, and the clamping operation is convenient and efficient. When the crystal rod is placed vertically on the upper surface of the tray 4, the crystal rod just seals the upper end of the vacuum pipe 7. The side opening of the vacuum pipe 7 is connected to an external vacuum pump. The vacuum pump valve is opened to allow the tray 4 to adsorb the sapphire crystal rod. After the detection and positioning of the side curved surface of the sapphire crystal rod are completed, the vacuum pump valve is closed and the sapphire crystal rod is removed.

[0019] 3. The curved surface crystal orientation detection fixture of the sapphire crystal rod of the utility model is a fixture for detecting the crystal orientation of the lateral curved surface of the C-direction sapphire crystal rod and locating the crystal orientation surface, which can detect the crystal orientation of the lateral curved surface of the sapphire crystal rod and realize the positioning and marking of the crystal orientation surface. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view of the curved surface crystal orientation detection fixture of the sapphire crystal rod of the utility model;

[0021] Figure 2 It is a top view of the curved surface crystal orientation detection fixture of the sapphire crystal rod of the utility model;

[0022] Figure 3 yes Figure 2 Sectional view at AA;

[0023] Figure 4This is a working state diagram of the locking handle 5 and the locking pin 6 of the utility model. At this time, the bottom end of the locking pin 6 is inserted into the groove of the end rod of the locking handle 5, the locking pin 6 is in the raised position, and the tray 4 is in a fixed state;

[0024] Figure 5 This is a working state diagram of the locking handle 5 and the locking pin 6 of the utility model. At this time, the bottom end of the locking pin 6 is not inserted into the groove of the end rod of the locking handle 5, the locking pin 6 is in a lowered position, and the tray 4 is in a non-fixed state.

[0025] In the figure: 1. Base; 2. Triangular mold; 3. Rotating axis; 4. Tray; 5. Locking handle; 6. Locking pin; 7. Vacuum pipe. DETAILED DESCRIPTION

[0026] Specific implementation method 1: Combination Figures 1 to 5 The present embodiment is described. A curved crystal orientation detection fixture for a sapphire crystal rod according to the present embodiment comprises a base 1, a triangular mold 2, a rotating shaft 3, a tray 4, a locking structure and a vacuum pipe 7. The tray 4, the rotating shaft 3, the triangular mold 2 and the base 1 are coaxially arranged in sequence from top to bottom in the vertical direction. The base 1 is a block structure with a square cross-section. The top of the base 1 is fixedly connected to the bottom of the triangular mold 2. The triangular mold 2 and the tray 4 are rotatably connected via the rotating shaft 3. A locking structure for fixing the tray 4 is provided on the base 1 and the triangular mold 2. The vacuum pipe 7 passes through the tray 4, the rotating shaft 3, the triangular mold 2 and the base 1 in sequence. One end of the vacuum pipe 7 opens through the center of the upper surface of the tray 4, and the other end of the vacuum pipe 7 opens through the side of the base 1.

[0027] In this embodiment, the curved surface crystal orientation detection fixture of the sapphire crystal rod also includes two bearings. A circular countersunk hole I is processed at the center of the lower surface of the tray 4, and a circular countersunk hole II is processed at the center of the upper surface of the triangular mold 2. Two bearings are respectively embedded in the circular countersunk hole I and the circular countersunk hole II. The two ends of the rotating shaft 3 are respectively connected to the tray 4 and the triangular mold 2 through two bearings.

[0028] Specific implementation method 2: Combination Figures 1 to 5 This embodiment is described. The tray 4, the rotating shaft 3 and the triangular mold 2 of this embodiment are all processed with coaxially arranged central through holes, and the base 1 is processed with an L-shaped through hole. The vertical hole section of the L-shaped through hole is coaxially arranged with the central through hole of the triangular mold 2. The upper end surface of the vacuum pipe 7 is flush with the upper surface of the tray 4. The lower end of the vacuum pipe 7 passes through the tray 4, the rotating shaft 3 and the central through hole of the triangular mold 2 and the vertical hole section and horizontal pipe section of the L-shaped through hole of the base 1 from top to bottom. In this way, the side opening of the vacuum pipe 7 is connected to an external vacuum pump, and the crystal rod clamping and fixing method is designed to be a vacuum adsorption method, which makes the clamping operation convenient and more efficient. The other components and connection relationships are the same as those of the specific embodiment 1.

[0029] Specific implementation method three: Combination Figures 1 to 5 To explain this embodiment, the triangular mold 2 of this embodiment is a regular triangular prism structure, the radius of the inscribed circle of the upper bottom surface of the triangular mold 2 is equal to the radius of the tray 4, and three vertically arranged arc surfaces are processed at the three edges of the triangular mold 2, the radii of the three arc surfaces are equal, and the radius of the circle where the three arc surfaces are located is equal to the radius of the crystal rod. Other components and connection relationships are the same as those of the specific embodiment one or two.

[0030] Specific implementation method four: Combination Figures 1 to 5 This embodiment is described. The locking structure of this embodiment includes a locking handle 5 and a locking pin 6. A vertically arranged eccentric pin hole is processed on the triangular mold 2. An inverted T-shaped pin hole is processed on the triangular mold 2. The vertical hole section of the T-shaped pin hole is coaxially arranged with the eccentric pin hole. The end rod of the locking handle 5 is rotatably inserted in the horizontal hole section of the T-shaped pin hole. Two grooves with a semicircular longitudinal section are processed on the side of the end rod of the locking handle 5. The bottom end of the locking pin 6 can be slidably inserted vertically in the vertical hole sections of the eccentric pin hole and the T-shaped pin hole. The axis of the locking pin 6 and the center of the groove are located on the same straight line. With such a configuration, by rotating the locking handle, the position of the locking pin 6 in the vertical direction is adjusted to achieve contact or separation with the tray 4. Other components and connection relationships are the same as those of the specific embodiments one, two or three.

[0031] Specific implementation method five: Combination Figures 1 to 5 To explain this embodiment, the locking handle 5 of this embodiment is a T-shaped rod structure, and the two grooves on the side of the end rod of the locking handle 5 are arranged axially symmetrically with the axis of the locking handle 5 as the center. When the head end rod of the locking handle 5 is in the vertical direction, the locking pin 6 drops into the groove; when the head end rod of the locking handle 5 is in the horizontal direction, the locking pin 6 rises to the lower surface of the tray 4. Other components and connection relationships are the same as those of the specific embodiments one, two, three or four.

[0032] Specific implementation method six: Combination Figures 1 to 5 To explain this embodiment, the bottom end of the locking pin 6 of this embodiment is a semi-spherical surface, and the top end of the locking pin 6 is a plane. In this way, the bottom end of the locking pin 6 is designed to be a semi-spherical surface in order to match the groove of the locking handle 5; the top end of the locking pin 6 is designed to be a plane in order to increase the contact area between the locking pin 6 and the tray 4, thereby increasing the friction between the two. Other components and connection relationships are the same as those of the specific embodiments one, two, three, four or five.

[0033] Specific implementation method seven: Combination Figures 1 to 5To illustrate this embodiment, the maximum vertical distance between the bottom of the groove of the locking handle 5 and the lower surface of the tray 4 is X1, the height of the locking pin 6 is X2, and the depth of the groove of the locking handle 5 is X3, X1<X2+X3. With this arrangement, before detection, the locking handle 5 is at a vertical angle. When the value of the lateral crystal direction of the crystal rod measured by the X-ray orientator reaches a peak value, the locking handle 5 is rotated to a horizontal angle, and the hemispherical surface of the bottom end of the locking pin 6 is disengaged from the groove at the end of the locking handle 5, the locking pin 6 is raised, and the top end contacts the lower surface of the tray 4, fixing the position of the tray 4. Other components and connection relationships are the same as those of specific embodiments one, two, three, four, five or six.

[0034] Specific implementation method eight: Combination Figures 1 to 5 This embodiment is described. A rubber pad is provided on the upper surface of the tray 4 of this embodiment. In this way, the tray 4 is smaller than the diameter of the crystal rod, and the rubber pad is provided on the surface of the tray 4 to prevent the crystal rod from being scratched and to increase the airtightness of vacuum adsorption. The other components and connection relationships are the same as those of the specific embodiments 1, 2, 3, 4, 5, 6 or 7.

[0035] Specific implementation method nine: Combination Figures 1 to 5 To explain this embodiment, the positive direction of the base 1 of this embodiment is marked with a centering mark. This arrangement facilitates accurate positioning of the fixture on the orienter operating table so that the crystal rod curved surface and the orienter patch plate can be tangent to the incident point of the X-ray. Other components and connection relationships are the same as those of the specific embodiments one, two, three, four, five, six, seven or eight.

[0036] How it works

[0037] Combination Figures 1 to 5The working principle of the curved crystal orientation detection fixture of the sapphire crystal rod of the utility model is described as follows: during operation, the detection fixture is placed on the X-ray orientation instrument workbench, the sapphire crystal rod is placed vertically on the tray 4, the centering mark of the fixture is aligned with the center line of the orientation instrument patch board, and it is ensured that the side curved surface of the crystal rod and the orientation instrument patch board can be tangent to the incident point of the X-ray. The side opening of the vacuum pipe 7 is connected to an external vacuum pump, the locking handle 5 is at a vertical angle, and the vacuum pump valve is opened to allow the tray 4 to absorb the sapphire crystal rod, and the vacuum pump is started. Start the X-ray orientation instrument, slowly rotate the tray 4 to drive the crystal rod to rotate, until the value of the crystal direction of the crystal rod measured by the X-ray orientation instrument reaches the peak value, rotate the locking handle 5 to a horizontal angle, the hemispherical surface of the bottom end of the locking pin 6 will be released from the groove at the end of the locking handle 5, the locking pin 6 will rise, and the top will contact the lower surface of the tray 4, fix the position of the tray 4, and use a marker to draw three straight lines on the bottom end of the crystal rod along the three edges of the triangular mold 2. The three straight lines are the crystal direction planes of the lateral crystal direction of the sapphire crystal rod. Rotate the locking handle 5 to a vertical angle, the bottom end of the locking pin 6 will fall into the groove at the end of the locking handle 5, the locking pin 6 will drop, and the top will be separated from the lower surface of the tray 4, close the vacuum pump valve, remove the sapphire crystal rod, and complete the detection and positioning of the lateral curved surface crystal direction of the sapphire crystal rod.

[0038] The above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fixture for detecting the curved crystal orientation of a sapphire crystal rod, characterized in that: The invention comprises a base (1), a triangular mold (2), a rotating shaft (3), a tray (4), a locking structure and a vacuum pipe (7); the tray (4), the rotating shaft (3), the triangular mold (2) and the base (1) are coaxially arranged in sequence from top to bottom in the vertical direction; the base (1) is a block structure with a square cross section; the top of the base (1) is fixedly connected to the bottom of the triangular mold (2); the triangular mold (2) and the tray (4) are rotationally connected via the rotating shaft (3); a locking structure for fixing the tray (4) is provided on the base (1) and the triangular mold (2); the vacuum pipe (7) passes through the tray (4), the rotating shaft (3), the triangular mold (2) and the base (1) in sequence; one end of the vacuum pipe (7) opens through the center of the upper surface of the tray (4); the other end of the vacuum pipe (7) opens through the side of the base (1).

2. The curved surface crystal orientation detection fixture for a sapphire crystal rod according to claim 1, characterized in that: The tray (4), the rotating shaft (3) and the triangular mold (2) are all processed with coaxially arranged central through holes, the base (1) is processed with an L-shaped through hole, the vertical hole section of the L-shaped through hole is coaxially arranged with the central through hole of the triangular mold (2), the upper end surface of the vacuum pipe (7) is flush with the upper surface of the tray (4), and the lower end of the vacuum pipe (7) passes through the tray (4), the rotating shaft (3) and the central through hole of the triangular mold (2) and the vertical hole section and horizontal pipe section of the L-shaped through hole of the base (1) in sequence from top to bottom.

3. A fixture for detecting the curved crystal orientation of a sapphire crystal rod according to claim 1 or 2, characterized in that: The triangular mold (2) is a regular triangular prism structure, the radius of the inscribed circle of the upper bottom surface of the triangular mold (2) is equal to the radius of the tray (4), three vertically arranged arc surfaces are processed at the three edges of the triangular mold (2), the radii of the three arc surfaces are equal, and the radius of the circle where the three arc surfaces are located is equal to the radius of the crystal rod.

4. The curved surface crystal orientation detection fixture of a sapphire crystal rod according to claim 1, characterized in that: The locking structure comprises a locking handle (5) and a locking pin (6); a vertically arranged eccentric pin hole is processed on the triangular mold (2); an inverted T-shaped pin hole is processed on the triangular mold (2); the vertical hole section of the T-shaped pin hole is coaxially arranged with the eccentric pin hole; the end rod of the locking handle (5) is rotatably inserted in the horizontal hole section of the T-shaped pin hole; two grooves with a semicircular longitudinal section are processed on the side of the end rod of the locking handle (5); the bottom end of the locking pin (6) is slidably vertically inserted in the vertical hole sections of the eccentric pin hole and the T-shaped pin hole; the axis of the locking pin (6) and the center of the groove are located on the same straight line.

5. The curved surface crystal orientation detection fixture of a sapphire crystal rod according to claim 4, characterized in that: The locking handle (5) is a T-shaped rod structure, and two grooves on the side of the end rod of the locking handle (5) are arranged axially symmetrically with the axis of the locking handle (5) as the center. When the head end rod of the locking handle (5) is located in the vertical direction, the locking pin (6) descends into the groove; when the head end rod of the locking handle (5) is located in the horizontal direction, the locking pin (6) rises to the lower surface of the tray (4).

6. A fixture for detecting the curved crystal orientation of a sapphire crystal rod according to claim 4 or 5, characterized in that: The bottom end of the locking pin (6) is a semi-spherical surface, and the top end of the locking pin (6) is a flat surface.

7. The curved surface crystal orientation detection fixture of a sapphire crystal rod according to claim 6, characterized in that: The maximum vertical distance between the bottom of the groove of the locking handle (5) and the lower surface of the tray (4) is X1, the height of the locking pin (6) is X2, the depth of the groove of the locking handle (5) is X3, and X1<X2+X3.

8. The curved surface crystal orientation detection fixture of a sapphire crystal rod according to claim 1, characterized in that: The upper surface of the tray (4) is provided with a rubber pad.

9. The curved surface crystal orientation detection fixture of a sapphire crystal rod according to claim 1, characterized in that: The positive direction of the base (1) is marked with a centering mark.

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