Surface defect detection equipment for large diamond single crystal

Abstract

The utility model relates to the technical field of large diamond single crystals, in particular to surface defect detection equipment for large diamond single crystals, which comprises an operating table and a sorting box, the sorting box is placed on the upper side of the table top of the operating table, a partition plate is transversely and fixedly arranged in the center of the interior of the sorting box, and side sliding rails are mounted on two walls of the operating table. A driving mechanism is installed on the left side of the top end of the operation table, an auxiliary frame is installed on the rear side of the top end of the operation table, a detection part is slidably arranged in the center of the auxiliary frame, and a sorting mechanism is installed in the center of the two side edge sliding rails and comprises a sorting frame and a rotating part, and the rotating part is installed on the left side of the top end of the sorting frame; the center of the rotating piece is meshed with the front side of the right end of the driving mechanism, an air pump is installed at the bottom end of the sorting frame, and the optical microscope can move conveniently through the auxiliary frame, so that large-batch diamond large single crystals are observed, the efficiency is improved, the detection efficiency is improved, the cost is reduced, and damage to the diamond large single crystals is reduced.

Description

Technical Field

[0001] This utility model relates to the field of diamond large single crystal technology, specifically to a surface defect detection device for diamond large single crystals. Background Technology

[0002] Large single-crystal diamonds, with their superior physicochemical properties such as extremely high hardness, excellent thermal conductivity, wide bandgap, and excellent optical and electrical properties, play an irreplaceable and crucial role in many high-end technology fields. However, during the growth and subsequent processing of large single-crystal diamonds, various defects are inevitably introduced onto their surface. These defects are diverse, including point defects (such as vacancies and interstitial atoms), line defects (such as dislocations), planar defects (such as stacking faults), and macroscopic defects such as scratches and pits caused by the processing. The presence of surface defects seriously affects the performance and application effects of large single-crystal diamonds.

[0003] For example, CN221485202U discloses a diamond single crystal surface finish testing device, including a testing stage. A support is fixed to the center of the top of the testing stage, and an irradiation head is mounted on the top of the support. Crossbars are provided on both sides of the support. A reflector is movably mounted at the front end of the middle of the crossbars, and a pushing sleeve is slidably fitted onto the outer end of the crossbars. A pull rod connects the top of the pushing sleeve to the rear side of the top of the reflector, and a limit component is fixed to the bottom of the pushing sleeve. This diamond single crystal surface finish testing device uses multi-angle refraction of the light source to obtain multi-angle detection data, improving the device's performance. However, in use, due to the large number of large diamond single crystals, conventionally inserting each one into a microscope is extremely time-consuming and easily damages the surface of the large diamond single crystals. Furthermore, while existing electron microscopes can observe nanoscale damage on the surface of large diamond single crystals, the cost of the device is high, and the time consumption is even longer. Therefore, there is an urgent need to design a surface defect detection device for large diamond single crystals to solve the above problems. Utility Model Content

[0004] The purpose of this invention is to provide a surface defect detection device for large diamond single crystals, in order to solve the problems mentioned in the background art, which are that due to the large number of large diamond single crystals, it is extremely time-consuming to send each one under a microscope, which can easily damage the surface of the large diamond single crystals. Furthermore, although the existing electron microscope can observe nanoscale damage on the surface of large diamond single crystals, the cover device is expensive and takes even longer.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a surface defect detection device for large diamond single crystals, comprising an operating table and a sorting box. The sorting box is placed on the upper side of the operating table. A partition plate is horizontally fixed in the center of the sorting box. Side slide rails are installed on both walls of the operating table. A drive mechanism is installed on the left side of the top of the operating table. An auxiliary frame is installed on the rear side of the top of the operating table. A detection element is slidably disposed in the center of the auxiliary frame. A sorting mechanism is installed in the center of the two sets of side slide rails. The sorting mechanism includes a sorting frame and a rotating component. The rotating component is installed on the left side of the top of the sorting frame. The center of the rotating component meshes with the front right end of the drive mechanism. An air pump is installed at the bottom of the sorting frame.

[0006] Preferably, a slider is sleeved inside the single set of side slide rails, a fixing plate is fixed on the outer wall of the slider, a fixing shaft is installed inside the fixing plate, and the side of the sorting frame is connected inside the fixing shaft.

[0007] Preferably, the drive mechanism includes a servo motor and a main shaft, the right end of the servo motor drives the main shaft to rotate, and the right end of the main shaft is fixed with a main gear.

[0008] Preferably, the auxiliary frame includes mounting plates and sliding columns, with two sets of mounting plates mounted on the top two walls of the operating table, and the two sets of mounting plates connected by two sets of sliding columns.

[0009] Preferably, the sorting frame includes an inner plate and a sorting box. Two sets of inner plates are respectively fixed inside the fixed rotating shaft. The bottom ends of the two sets of inner plates are connected by the sorting box. A sinking groove is opened on the bottom center of the sorting box. A sorting plate is placed on the upper side of the sinking groove. Multiple sorting grooves are opened in the center of the sorting plate. An air extraction groove is opened at the bottom end of the sinking groove. Side grooves are opened through the front and rear ends of the sinking groove.

[0010] Preferably, the rotating component includes a secondary shaft and a secondary gear. The secondary shaft is fixed on the upper side of the left inner plate, and the secondary gear is fixed at the left end of the secondary shaft. The rear end of the secondary gear meshes with the main gear.

[0011] Preferably, the detection element includes a sliding block and a mounting bracket. The center of the sliding block slides left and right within two sets of sliding columns. The mounting bracket is fixed at the front end of the sliding block, and an optical microscope is mounted at the center of the mounting bracket.

[0012] Compared with the prior art, the beneficial effects of this utility model are:

[0013] This surface defect detection equipment for large diamond single crystals features a toothed slide rail inside the operating table that can move the sorting mechanism, making it convenient for different operators and improving the applicability of the device. The drive mechanism can drive the main shaft to rotate via a servo motor, which in turn drives the sorting frame to rotate slightly through the meshing of the main gear, thereby sorting the large diamond single crystals and further improving efficiency. The auxiliary frame facilitates the movement of the optical microscope, thereby improving the efficiency of observing large batches of large diamond single crystals.

[0014] This surface defect detection device for large diamond single crystals can rotate the sorting box by means of inner plates fixed on both sides of the sorting box, which facilitates the screening of large diamond single crystals placed in the sorting box and improves efficiency. The air pump can adsorb the large diamond single crystals placed in the sorting groove of the sorting plate, which is convenient for observation by the optical limiting lens. This design can improve detection efficiency, reduce cost, and reduce damage to large diamond single crystals. Attached Figure Description

[0015] Figure 1 This is a top view of the present invention;

[0016] Figure 2 This is an enlarged schematic diagram of the internal structure of the operating table of this utility model;

[0017] Figure 3 This is a schematic diagram of the auxiliary frame structure of this utility model;

[0018] Figure 4 This is a cross-sectional schematic diagram of the sorting mechanism of this utility model.

[0019] In the diagram: 1. Operating table; 11. Side slide rail; 111. Slider; 112. Fixing plate; 113. Fixing shaft; 12. Drive mechanism; 121. Servo motor; 122. Main shaft; 123. Main gear; 2. Sorting box; 21. Spacer plate; 3. Auxiliary frame; 31. Mounting plate; 32. Sliding column; 4. Sorting mechanism; 41. Sorting frame; 411. Inner plate; 412. Sorting box; 413. Sinking trough; 414. Side trough; 415. Air extraction trough; 416. Sorting plate; 4161. Sorting trough; 42. Rotating component; 421. Secondary shaft; 422. Secondary gear; 43. Air extraction pump; 5. Detection component; 51. Sliding block; 52. Mounting frame; 53. Optical microscope. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] Please see Figures 1-4 One embodiment provided by this utility model:

[0022] A surface defect detection device for large diamond single crystals is disclosed in this application. The servo motor 121, air pump 43, and optical microscope 53 used in this application are commercially available products. Their principles and connection methods are existing technologies well known to those skilled in the art. The device includes an operating table 1 and a sorting box 2. The sorting box 2 is placed on the upper side of the operating table 1. A partition plate 21 is horizontally fixed in the center of the sorting box 2. Side slide rails 11 are installed on both walls of the operating table 1. A drive mechanism 12 is installed on the left side of the top of the operating table 1. An auxiliary frame 3 is installed on the rear side of the top of the operating table 1. A detection element 5 is slidably provided in the center of the auxiliary frame 3. A sorting mechanism 4 is installed in the center of the two sets of side slide rails 11. The sorting mechanism 4 includes a sorting frame 41 and a rotating element 42. The rotating element 42 is installed on the left side of the top of the sorting frame 41. The center of the rotating element 42 engages with the front right end of the drive mechanism 12. An air pump 43 is installed at the bottom end of the sorting frame 41.

[0023] As a further feature of this invention, a slider 111 is fitted inside the single-set side slide rail 11. A fixing plate 112 is fixedly mounted on the outer wall of the slider 111. A fixing shaft 113 is installed inside the fixing plate 112. The inside of the fixing shaft 113 is connected to the side of the sorting frame 41. The drive mechanism 12 includes a servo motor 121 and a main shaft 122. The right end of the servo motor 121 drives the main shaft 122 to rotate. A main gear 123 is fixedly mounted on the right end of the main shaft 122, which facilitates the adjustment of the box rotation sorting mechanism and is beneficial for the selection of large diamond single crystals.

[0024] Furthermore, the auxiliary frame 3 includes a mounting plate 31 and a sliding column 32. Two sets of mounting plates 31 are installed on the top two walls of the operating table 1. The two sets of mounting plates 31 are connected by two sets of sliding columns 32. The detection component 5 includes a sliding block 51 and a mounting frame 52. The center of the sliding block 51 slides left and right within the two sets of sliding columns 32. The front end of the sliding block 51 is fixed with the mounting frame 52. The center of the mounting frame 52 is equipped with an optical microscope 53, which is beneficial for batch observation with the optical microscope, improving efficiency and reducing costs.

[0025] As a further improvement of this utility model, the sorting frame 41 includes an inner plate 411 and a sorting box 412. Two sets of inner plates 411 are respectively fixed inside the fixed rotating shaft 113. The bottom ends of the two sets of inner plates 411 are connected by the sorting box 412. A sinking groove 413 is opened on the bottom center of the sorting box 412. A sorting plate 416 is placed on the upper side of the sinking groove 413. Multiple sorting grooves 4161 are opened in the center of the sorting plate 416. An air extraction groove 415 is opened at the bottom end of the sinking groove 413. Side grooves 414 are opened through the front and rear ends of the sinking groove 413. The rotating component 42 includes a secondary rotating shaft 421 and a secondary gear 422. The secondary rotating shaft 421 is fixed on the upper side of the left inner plate 411. The secondary gear 422 is fixed on the left end of the secondary rotating shaft 421. The rear end of the secondary gear 422 meshes with the main gear 123, which is beneficial to improve detection efficiency, reduce costs, and reduce damage to large diamond single crystals.

[0026] Working principle: In use, the operator first pulls out the entire sorting mechanism 4 using the sliders 111 on both sides. Then, the operator takes the large single diamond crystal to be tested from the area separated by the front end of the partition plate 21 inside the sorting box 2 and places it on the sorting plate 416 inside the sorting box 412. Then, the operator powers on the servo motor 121 to drive the main shaft 122 on the right end to rotate. The rotation of the main shaft 122 drives the main gear 123 to mesh with the auxiliary gear 422 at the front end to rotate. The rotation of the auxiliary gear 422 drives the auxiliary shaft 421 and the inner plate 411 to rotate. The rotation of the inner plate 411 drives the sorting box 412 to rotate. 2. The diamond single crystals are rotated slightly to the upper rear. The large diamond single crystals laid on the sorting plate 416 fall into the sorting tank 4161 and are adsorbed by the air pump 43. The rest fall into the front end of the sorting box 2 through the side groove 414 on the front side of the sorting box 412. Then, the distance between the sorting mechanism 4 and the operating table 1 is adjusted, and the optical microscope 53 is moved to observe the large diamond single crystals. After the defective products are picked out, the servo motor 121 is rotated in the opposite direction to drive the main shaft 122 to rotate. The high-quality large diamond single crystals fall into the rear side of the sorting box 2 through the side groove 414 on the rear side. The above is the complete working principle of this utility model.

[0027] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. A surface defect detection device for a diamond single crystal, comprising an operating table (1) and a sorting box (2), the sorting box (2) is placed on the upper side of the table top of the operating table (1), and a spacing plate (21) is transversely fixed in the inner center of the sorting box (2), characterized in that: The operation platform (1) is provided with two side sliding rails (11) on two walls, a driving mechanism (12) is arranged on the left top end of the operation platform (1), and an auxiliary frame (3) is arranged on the rear top end of the operation platform (1); the center of the auxiliary frame (3) is slidably provided with a detection member (5); two groups of side sliding rails (11) are arranged on the center of the auxiliary frame (3) and are provided with a sorting mechanism (4); the sorting mechanism (4) comprises a sorting frame (41) and a rotating member (42); the left top end of the sorting frame (41) is provided with the rotating member (42); the center of the rotating member (42) is engaged with the right end of the front side of the driving mechanism (12); and the bottom end of the sorting frame (41) is provided with an air suction pump (43).

2. The apparatus for detecting surface defects of a diamond bulk single crystal according to claim 1, wherein: The inner part of one group of side sliding rails (11) is sleeved with a sliding block (111), the outer wall of the sliding block (111) is fixedly provided with a fixed plate (112), the inner part of the fixed plate (112) is provided with a fixed rotating shaft (113), and the inner part of the fixed rotating shaft (113) is connected with the side of the sorting frame (41).

3. The apparatus for detecting surface defects of a diamond bulk single crystal according to claim 1, wherein: The driving mechanism (12) comprises a servo motor (121) and a main rotating shaft (122); the right end of the servo motor (121) drives the main rotating shaft (122) to rotate; and the right end of the main rotating shaft (122) is fixedly provided with a main gear (123).

4. The apparatus for detecting surface defects of a diamond bulk single crystal according to claim 1, wherein: The auxiliary frame (3) comprises mounting plates (31) and sliding columns (32); two groups of mounting plates (31) are arranged on the top ends of two walls of the operation platform (1); and two groups of sliding columns (32) are arranged between the two groups of mounting plates (31).

5. The apparatus for detecting surface defects of a diamond bulk single crystal according to claim 1, wherein: The sorting frame (41) comprises inner connecting plates (411) and sorting boxes (412); two groups of inner connecting plates (411) are fixedly arranged on the inner sides of the fixed rotating shafts (113); the bottom ends of the two groups of inner connecting plates (411) are connected by using the sorting boxes (412); the center of the bottom side of the sorting box (412) is provided with a sunken groove (413); the upper side of the sunken groove (413) is placed with a sorting plate (416); the center of the sorting plate (416) is provided with a plurality of sorting grooves (4161); the bottom end of the sunken groove (413) is provided with an air suction groove (415); and the front and rear ends of the sunken groove (413) are provided with side grooves (414).

6. The apparatus for detecting surface defects of a diamond bulk single crystal according to claim 1, wherein: The rotating member (42) comprises a secondary rotating shaft (421) and a secondary gear (422); the secondary rotating shaft (421) is fixedly arranged on the upper side of the left inner connecting plate (411); the left end of the secondary rotating shaft (421) is fixedly provided with the secondary gear (422); and the rear end of the secondary gear (422) is engaged with the main gear (123).

7. The apparatus for detecting surface defects of a diamond bulk single crystal according to claim 1, wherein: The detection member (5) comprises a sliding block (51) and a mounting frame (52); the center of the sliding block (51) slides left and right in the two groups of sliding columns (32); the front end of the sliding block (51) is fixedly provided with the mounting frame (52); and the center of the mounting frame (52) is provided with an optical microscope (53).

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