Non-destructive jewelry optical inspection device and method

Abstract

The present invention relates to the field of jewelry optical inspection technology, and in particular to a non-destructive jewelry optical inspection device and method, comprising a cabinet, wherein a control module, a circulation module, a drive shaft, and a collection box are provided on the upper side of the cabinet, a clamping mechanism is provided on the side of the circulation module, and a detection mechanism is provided on the upper side of the cabinet corresponding to the inner position of the circulation module, wherein the clamping mechanism includes a movable cavity, wherein a first movable block, a first restraining rod, and a first spring are provided inside the movable cavity, and a connecting frame is fixedly installed on the side of the first movable block. The present invention is provided with a clamping mechanism and a detection mechanism, which can realize the assembly line detection operation of the jewelry circulation state, and the clamping and releasing are set by a mechanical structure, which can be manually or mechanically triggered automatically to ensure the stable adaptability of the jewelry detection, and multi-state detection switching can be performed at the same workstation to improve the detection efficiency. After the detection, the qualified and unqualified products are automatically triggered to be collected, and the jewelry is released stably and safely.

Description

Technical Field

[0001] The present invention relates to the technical field of jewelry optical detection, and in particular to a non-destructive jewelry optical detection device and method. Background Art

[0002] Jewelry testing is a key step in the jewelry processing, identification and recycling process. Traditional testing methods mostly rely on manual visual inspection or single optical equipment, which has problems such as low efficiency, strong subjectivity, and easy damage to the jewelry surface.

[0003] Existing automated inspection devices often have a single function, making it difficult to perform multimodal optical inspections (such as polarization, spectroscopy, and microscopic imaging) at the same station. Furthermore, jewelry clamping mechanisms generally have poor adaptability, making it impossible to achieve both stable clamping and non-destructive operation for jewelry of varying shapes. Furthermore, frequent equipment changes or adjustments to jewelry positions during the inspection process increase energy consumption and extend inspection cycles. Therefore, there is an urgent need for an integrated, highly adaptable non-destructive inspection device that can perform multi-dimensional optical inspections at a single station while ensuring the safety and stability of jewelry throughout the entire process of conveying, clamping, and inspection. We propose a non-destructive jewelry optical inspection device and method. Summary of the Invention

[0004] In order to overcome the technical problems existing in the above-mentioned prior art, the present invention provides a non-destructive jewelry optical inspection device and method.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A non-destructive jewelry optical inspection device includes a cabinet, a control module, a circulation module, a drive shaft, and a collection box are arranged on the upper side of the cabinet, a clamping mechanism is arranged on the side of the circulation module, and a detection mechanism is arranged on the upper side of the cabinet corresponding to the inner side of the circulation module;

[0007] The clamping mechanism includes a movable chamber, a first movable block, a first constraint rod and a first spring are arranged inside the movable chamber, a connecting frame is fixedly installed on the side of the first movable block, a movable groove is opened on the side of the connecting frame, a second movable block, a second constraint rod and a second constraint rod are arranged inside the movable groove, a clamping block, a limiting block and a matching block are arranged on the side of the second movable block, and a trigger plate is arranged on the side of the matching block;

[0008] The detection mechanism includes a second mounting frame, a movable frame is arranged inside the second mounting frame, a focusing tube and a protective cover are arranged on the side of the movable frame, a connecting rod and a detection block are arranged on the lower side of the focusing tube, a linkage rod and a detection tube are arranged inside the protective cover, a motor and a second electric push rod are arranged on the side of the movable frame, a matching shaft is fixedly installed on the output end of the motor, a connecting block is fixedly installed on the side of the matching shaft, and a clamping rod and a support tube are arranged on the side of the matching shaft.

[0009] Furthermore, the movable chamber is vertically opened on the side of the circulation module, the first movable block is movably installed inside the movable chamber, the first constraint rod passes through and is fixedly installed on the wall of the movable chamber, the first spring is fixedly connected between the side of the first movable block and the wall of the movable chamber and the first spring is movably sleeved on the side position of the first constraint rod, and the connecting frame is horizontal.

[0010] Furthermore, the side of the connecting frame is symmetrically provided with slots running through it, the second movable block is movably installed inside the movable slot, the second constraint rod is fixedly installed through the wall of the movable slot, the second spring is fixedly connected between the side of the second movable block and the wall of the movable slot and the second spring is movably sleeved on the side of the second constraint rod.

[0011] Furthermore, the clamping block is fixedly mounted on the side of the second movable block, and the arc surface of the clamping block is equidistantly provided with matching grooves, the limit block is fixedly mounted on the lower side of the clamping block and the limit block portion extends to the inner position of the clamping block, the matching block is fixedly mounted on the upper side of the clamping block and the matching block is arranged at the corresponding slot position on the upper side of the connecting frame, and the trigger plate is movably mounted inside the slot and the trigger plate is fixedly mounted on the side position of the circulation module.

[0012] Furthermore, the first mounting bracket is fixedly installed on the upper side of the cabinet, a first electric push rod is fixedly installed on the side of the first mounting bracket, the second mounting bracket is fixedly installed on the upper side of the cabinet, a mounting groove is provided on the side of the second mounting bracket, the movable bracket is slidably installed inside the mounting groove, the focusing cylinder is arranged on the upper side of the clamping block, the connecting rod is fixedly installed on the lower side of the focusing cylinder, the detection block is fixedly installed on the side of the connecting rod, the protective cover is fixedly installed on the upper side of the focusing cylinder, a visual camera is fixedly installed at the center position of the upper side of the protective cover, a linkage rod is movably provided inside the protective cover, the detection cylinder is provided on the side of the linkage rod, a first gear passing through the protective cover is fixedly installed on the upper side of the motor, and a second gear is meshed with the side of the first gear.

[0013] Furthermore, the motor is arranged on the side of the movable frame, the second electric push rod is fixedly installed on the side of the movable frame and the second electric push rod passes through the output end of the movable frame and is fixed to the side position of the motor through the bracket, the matching shaft passes through the movable frame and extends out, the side of the matching shaft is movably sleeved with a third gear and the third gear is rotatably installed on the side position of the movable frame through the bracket, the side of the third gear is meshed with a rack plate and the rack plate is vertically fixedly installed on the side position of the second mounting frame.

[0014] Furthermore, a matching cavity is provided on the side of the movable frame, and card slots are provided at equal distances on the two side walls of the installation groove. The card rod is movably installed inside the matching cavity and the card rod is card-connected and installed in the internal position of the card slot. The support tube is fixedly connected between the side of the card rod and the wall of the matching cavity and the support tube is movably sleeved on the side of the card rod, and a trigger groove is provided on the side of the matching shaft.

[0015] A method for using a non-destructive jewelry optical inspection device comprises the following steps:

[0016] Step 1: Set up a corresponding number of testing institutions based on the jewelry testing needs and quantity;

[0017] Step 2: The jewelry material is clamped and moved cyclically until it reaches the testing mechanism for testing.

[0018] Step 2.1: After the test is passed, the trigger switches to a different test mode to conduct the remaining test items;

[0019] Step 2.2: If the test fails, the clamped jewelry is triggered to move to the corresponding collection area and the material is released;

[0020] Step 2.1.1: After passing the test, the jewelry that has passed the test will be triggered when it reaches the qualified position, and the clamped jewelry will move to the corresponding collection point and be released;

[0021] In step 2.1.2, if the test fails, step 2.2 is triggered.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] 1. The present invention can realize the assembly line detection operation of the jewelry circulation status by setting a clamping mechanism and a detection mechanism. The clamping and releasing adopts a mechanical structure setting, which can be triggered manually or automatically to ensure the stable adaptability of the jewelry detection. In addition, multi-state detection switching can be performed at the same workstation to improve the detection efficiency. After the detection, it automatically triggers the separation and collection of qualified and unqualified products, and the release of jewelry is stable and safe.

[0024] 2. The present invention realizes the integrated effect of multi-state detection by providing a linkage rod, a detection cylinder and its peripheral components. Specifically, by providing a rotatable linkage rod and a circular array of detection cylinders (polarizers, spectrometers, microscopes, etc.), in conjunction with a visual camera, rapid switching of detection modes at the same workstation can be achieved, effectively improving detection efficiency.

[0025] 3. The present invention can realize multi-state drive from a single drive by setting a motor, a matching shaft, a connecting block and its peripheral components, thereby reducing the energy consumption of the equipment. Specifically, the motor selectively drives the third gear to engage with the rack plate to adjust the position of the movable frame or the second gear to engage with the first gear to switch the position of the detection cylinder through the axial movement of the matching shaft, so that only a single motor is needed to complete the positioning and detection mode switching functions.

[0026] 4. The present invention can ensure the safe limit of the movable frame when cooperating with multi-state driving by setting the card rod and its peripheral components. Specifically, the card rod is designed to cooperate with the trigger slot to automatically unlock when the movable frame moves. In addition, it elastically snaps into the card slot for limit during detection. In this way, no other power components are required, the structure is simple, and the finished product cost is low.

[0027] 5. The present invention provides a clamping mechanism that can adaptively clamp jewelry. Specifically, the clamping mechanism adopts a linkage design of a first spring, a second spring, and a first movable block, and a second movable block. By pressing the connecting frame, the clamping blocks are triggered to open and close, thereby achieving elastic clamping of different jewelry. In addition, the matching groove and the limit block work together, and the corners of rectangular jewelry are snapped into the matching groove, which can adapt to the stable clamping of jewelry of different shapes.

[0028] 6. The present invention adopts modular setting of detection mechanism, and the number of detection mechanisms can be increased or decreased according to demand. By replacing detection tube mirrors and sensor modules (such as switching the spectroscope to an infrared spectrum sensor), the requirements for multi-scenario detection of jewelry can be met, and the applicability is strong. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0030] Figure 2 It is a schematic diagram of the cross-sectional structure of the present invention;

[0031] Figure 3 It is a partial structural schematic diagram of the present invention;

[0032] Figure 4 It is a partial structural schematic diagram of the clamping mechanism of the present invention;

[0033] Figure 5 For the present invention Figure 2 A schematic diagram of the enlarged structure at point A;

[0034] Figure 6 Schematic diagram of the cross-sectional structure of the detection mechanism of the present invention;

[0035] Figure 7 It is a schematic diagram of the partial structure of the detection mechanism of the present invention;

[0036] Figure 8 For the present invention Figure 2 A schematic diagram of the enlarged structure at point B;

[0037] Figure 9 It is a schematic diagram of the partial explosion structure of the movable frame of the present invention;

[0038] Figure 10 For the present invention Figure 6 Schematic diagram of the enlarged structure at C;

[0039] Figure 11 Schematic diagram of the method of the present invention.

[0040] Wherein: 1. Cabinet; 11. Control module; 12. Circulation module; 13. Drive shaft; 14. Collecting box; 2. Clamping mechanism; 21. Active cavity; 211. First active block; 212. First constraint rod; 213. First spring; 22. Connecting frame; 221. Slot; 23. Active slot; 231. Second active block; 232. Second constraint rod; 233. Second spring; 24. Clamping block; 241. Matching slot; 242. Limiting block; 25. Matching block; 26. Trigger plate; 3. Detection mechanism; 31. First mounting frame; 311. First An electric push rod; 32. A second mounting bracket; 321. A mounting slot; 33. A movable bracket; 331. A focusing tube; 332. A connecting rod; 333. A detection block; 334. A protective cover; 335. A visual camera; 336. A linkage rod; 337. A detection tube; 338. A first gear; 339. A second gear; 34. A rack plate; 35. A third gear; 36. A motor; 361. A mating shaft; 362. A connecting block; 363. A trigger slot; 37. A second electric push rod; 38. A mating cavity; 381. A card slot; 382. A card rod; 383. A support tube. DETAILED DESCRIPTION

[0041] In order to make the technical means, creative features, purpose and efficacy of the present invention easy to understand, the present invention is further described below in conjunction with specific examples, but the following examples are only preferred embodiments of the present invention, not all. Based on the examples in the embodiments, other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of the present invention. The experimental methods in the following examples, unless otherwise specified, are conventional methods, and the materials, reagents, etc. used in the following examples, unless otherwise specified, can be obtained from commercial channels.

[0042] Example: Figure 1 and Figure 2As shown, a non-destructive jewelry optical inspection device includes a cabinet 1, which is a rectangular cabinet with power supply, drive and control modules installed inside. A control module 11 is fixedly installed on the upper side of the cabinet 1, and the control module 11 is a double-position button console. A circulation module 12 is provided on the upper side of the cabinet 1, and the circulation module 12 is an "O"-shaped chain belt. A drive shaft 13 is symmetrically provided on the inner side of the circulation module 12 and the drive shaft 13 is connected to the end of the drive module inside the cabinet 1. The circulation module 12 is engaged and sleeved on the side of the drive shaft 13. The drive shaft 13 can be driven to make the circulation module 12 rotate in a cycle. A collection box 14 is symmetrically provided on the upper side of the cabinet 1 at a position corresponding to the circulation module 12. The collection box 14 is a rectangular box. A clamping mechanism 2 that can adapt to clamping jewelry is provided on the side of the circulation module 12. A detection mechanism 3 that can detect jewelry with centralized functions is provided on the upper side of the cabinet 1 at a position corresponding to the inner side of the circulation module 12.

[0043] The clamping mechanism 2 can be adapted to different jewelry, supporting manual or mechanical triggering of clamping or loosening operations, and the mechanical structure ensures stability in use;

[0044] like Figures 3 to 5As shown, the clamping mechanism 2 includes an active cavity 21 equidistantly and vertically opened on the side of the circulation module 12. The active cavity 21 is a rectangular cavity with a convex cross-section. A first active block 211 is movably installed inside the active cavity 21 and the first active block 211 partially extends out of the active cavity 21. The first active block 211 is a convex block. A first constraint rod 212 is fixedly installed on the wall of the active cavity 21 and the first constraint rod 212 passes through the first active block 211. The first constraint rod 212 is a cylindrical rod. A first constraint rod 212 is fixedly connected between the side of the first movable block 211 and the wall of the active cavity 21. The spring 213 and the first spring 213 are movably sleeved on the side of the first constraint rod 212. A connecting frame 22 is fixedly installed on the side of the first movable block 211 and the connecting frame 22 is horizontal. The connecting frame 22 is a rectangular frame. A slot 221 is symmetrically opened on the side of the connecting frame 22 and passes through it. The slot 221 is a rectangular slot. A movable slot 23 is opened on the side of the connecting frame 22 away from the first movable block 211. The movable slot 23 is a rectangular slot with a convex cross-section. A second movable block 231 is symmetrically installed inside the movable slot 23 and the second movable block 231 partially extends. Out of the internal position of the movable groove 23, the second movable block 231 is a convex block, and a second constraint rod 232 is fixedly installed on the wall of the movable groove 23 and the second constraint rod 232 passes through the second movable block 231. The second constraint rod 232 is a cylindrical rod. A second spring 233 is fixedly connected between the side of the second movable block 231 and the wall of the movable groove 23, and the second spring 233 is movably sleeved on the side position of the second constraint rod 232. Clamping blocks 24 are fixedly installed on the sides of the second movable block 231. The clamping blocks 24 are "C"-shaped blocks, and the two groups of clamping blocks 24 are mirror-set with corresponding arc surfaces. , matching grooves 241 are equidistantly provided on the arc surface of the clamping block 24, and the matching grooves 241 are rectangular grooves. A limit block 242 is fixedly installed on the lower side of the clamping block 24, and the limit block 242 partially extends to the inner side of the clamping block 24. The limit block 242 is a "C"-shaped block. A matching block 25 is fixedly installed on the upper side of the clamping block 24 and the matching block 25 is arranged at a position corresponding to the slot 221 on the upper side of the connecting frame 22. The matching block 25 is a rectangular block. A trigger plate 26 is movably installed inside the slot 221 and the trigger plate 26 is fixedly installed on the side of the circulation module 12. The trigger plate 26 is a trapezoidal plate;Specifically, the connecting frame 22 is pressed to move downward, and the synchronous first movable block 211 is constrained by the first constraint rod 212 to slide inside the movable cavity 21 to guide the connecting frame 22 to move downward. When the connecting frame 22 moves downward, the trigger plate 26 squeezes the matching block 25 from the side surface, causing the two groups of clamping blocks 24 to move away from each other. At this time, the clamping blocks 24 are in an open and closed state, and the synchronous second movable block 231 is constrained by the second constraint rod 232 to slide inside the movable groove 23 to guide the moving path of the clamping blocks 24. At this time, the jewelry is placed between the clamping blocks 24 and the connecting frame is released. The connecting frame 22 is elastically supported by the first spring 213, so that the connecting frame 22 moves upward and resets. The matching block 25 simultaneously loses the squeeze constraint of the trigger plate 26. Under the elastic support of the second spring 233, the two sets of clamping blocks 24 move closer to each other. At this time, the clamping blocks 24 are in a closed state, clamping the side of the jewelry. The limit block 242 acts as a lower limit for the jewelry to effectively prevent the jewelry from falling. In addition, the matching groove 241 is provided so that when clamping rectangular jewelry, the side of the jewelry is clamped on the side of the matching groove 241, thereby enhancing the stable clamping of the rectangular jewelry.

[0045] The detection mechanism 3 can be used to perform different optical inspection operations on jewelry at the same station, thereby improving inspection efficiency and being controlled by a single drive to reduce energy consumption.

[0046] like Figure 3 and Figures 5 to 10As shown, the detection mechanism 3 includes a first mounting frame 31 fixedly mounted on the upper side of the cabinet 1 and the first mounting frame 31 is arranged on the inner side of the circulation module 12. The first mounting frame 31 is a "Z"-shaped frame. A first electric push rod 311 is fixedly mounted on the side of the first mounting frame 31 and the output end of the first electric push rod 311 corresponds to the side position of the connecting frame 22. A second mounting frame 32 is fixedly mounted on the upper side of the cabinet 1 and the second mounting frame 32 is also arranged on the inner side of the circulation module 12. The second mounting frame 32 is a rectangular frame. A mounting groove 321 is provided on the side of the second mounting frame 32, and the mounting groove 321 is a rectangular groove with a cross-shaped cross-section. A movable frame 33 is installed and the movable frame 33 partially extends to the upper side of the clamping block 24. The movable frame 33 is an "L"-shaped ring frame with a bulge on the side. A focusing tube 331 is provided on the upper side of the clamping block 24 and the movable frame 33 is fixedly sleeved on the side of the focusing tube 331. The focusing tube 331 is an "L"-shaped cylinder with a light board on the inside. A connecting rod 332 is fixedly installed on the lower side of the focusing tube 331 and the connecting rod 332 is set on the upper side of the connecting frame 22. The connecting rod 332 is a circular rod. A detection block 333 is fixedly installed on the side of the connecting rod 332 away from the focusing tube 331 and the detection block 333 is attached to the upper side of the connecting frame 22. The detection block 333 is a pressure sensor (which can detect A sensor for measuring tiny pressures is sufficient), a protective cover 334 is fixedly installed on the upper side of the focusing cylinder 331. The protective cover 334 is a funnel-shaped cylinder with an "L"-shaped cross-section. A visual camera 335 is fixedly installed at the center of the upper side of the protective cover 334. The visual camera 335 can be a standard visual sensor. A linkage rod 336 is movably provided inside the protective cover 334. The linkage rod 336 is a cylindrical rod. Detection cylinders 337 are equidistantly arranged in a circular array on the side of the linkage rod 336, and one group of detection cylinders 337 corresponds to the center of the focusing cylinder 331 and the position of the visual camera 335. The detection cylinders 337 are fixedly installed on the side of the motor 36 through a rectangular frame. The measuring tube 337 is a cylindrical tube with integrated lenses such as a polarizer, a spectrometer, and a microscope, and can be used in conjunction with the visual camera 335 to adapt to the visual inspection of different jewelry. In addition, the measuring tubes 337 in the other detection mechanisms 3 can be replaced with optical detection sensors such as ultraviolet fluorescence, Raman spectroscopy, and infrared spectroscopy. A first gear 338 is fixedly mounted on the upper side of the motor 36 and passes through the protective cover 334 and is arranged on the upper side of the protective cover 334. The first gear 338 is a convex bevel gear. A second gear 339 is meshed with the side of the first gear 338 and is fixed to the upper side of the protective cover 334 in a bearing-fitted manner. The second gear 339 is an I-shaped bevel gear.Specifically, the movable frame 33 can slide and adjust its position inside the mounting groove 321, and the movable frame 33 can drive the focusing tube 331 and the protective cover 334 to move as a whole. During the movement, when the detection block 333 is attached to the side of the connecting frame 22, a certain pressure is generated, and the detection position can be determined. Then the focusing tube 331 moves downward, and the connecting frame 22 can be pushed by the connecting rod 332 and the detection block 333 to be mechanically triggered, so that the clamping block 24 moves away and releases the jewelry to be collected inside the collection box 14. The second gear 339 can be driven to rotate and mesh with the first gear 338 through subsequent components. The first gear 338 drives the linkage rod 336 to rotate, which can drive the detection tube 337 to rotate and adjust its position, so that the corresponding required detection tube 337 is in a corresponding position with the visual camera 335. The visual camera 335 cooperates with the visual camera 335 to perform different optical inspections, and the light board inside the focusing tube 331 can fill in the light for the jewelry.

[0047] The side of the movable frame 33 away from the focusing tube 331 is provided with a motor 36, and a second electric push rod 37 is symmetrically fixedly installed on the side of the movable frame 33, and the second electric push rod 37 passes through the output end of the movable frame 33 and is fixed to the side position of the motor 36 through a bracket. The motor 36 can be supported by the second electric push rod 37 to move the position, and a matching shaft 361 is fixedly installed on the output end of the motor 36, and the matching shaft 361 passes through the movable frame 33 and extends out. The matching shaft 361 is a cylindrical shaft, and a connecting block 362 is fixedly installed on the side of the matching shaft 361 away from the motor 36. The connecting block 362 is a circular block made of wear-resistant material. The third gear 35 is movably sleeved on the side of the matching shaft 361, and the third gear 35 is supported by a bracket. The frame is rotatably mounted on the side of the movable frame 33. The third gear 35 is a ring gear. A rack plate 34 is meshed on the side of the third gear 35 and the rack plate 34 is vertically fixedly mounted on the side of the second mounting frame 32. The rack plate 34 is a rectangular plate with a toothed side. A matching cavity 38 is mirrored on the side of the movable frame 33 and passes through it to the side of the matching shaft 361. The matching cavity 38 is a cylindrical groove with a convex cross-section. Slots 381 are equidistantly provided on the two side walls of the mounting groove 321. The slots 381 are circular grooves. A clamping rod 382 is movably mounted inside the matching cavity 38 and the clamping rod 382 is clamped and mounted in the internal position of the clamping groove 381. The clamping rod 382 is a "T"-shaped round rod and its side is tapered. The cam 383 is fixedly connected between the side of the card rod 382 and the wall of the matching cavity 38, and the cam 383 is movably sleeved on the side of the card rod 382. The cam 383 is a corrugated cylinder made of elastic material, and a trigger groove 363 is provided on the side of the matching shaft 361. The trigger groove 363 is a circular groove. Specifically, the second electric push rod 37 can drive the motor 36 to move the position, and the matching shaft 361 moves accordingly. When moving, the matching shaft 361 is pulled so that the connecting block 362 fits the side position of the third gear 35. At this time, when the motor 36 drives the matching shaft 361 to rotate, the third gear 35 can rotate accordingly and engage with the rack plate 34, driving the movable frame 33 to move in the mounting groove 32 1 moves to a position inside the trigger slot 363, and at the same time, the trigger slot 363 corresponds to the position of the card rod 382. Under the elastic support of the support tube 383, the card rod 382 slides out of the card slot 381 to the position inside the trigger slot 363; during adjustment, the matching shaft 361 is pushed so that the connecting block 362 is attached to the side position of the second gear 339. At this time, when the motor 36 drives the matching shaft 361 to rotate, the second gear 339 can rotate accordingly and engage with the first gear 338, driving the motor 36 to select and switch different positions of the second electric push rod 37 corresponding to the visual camera 335. At the same time, the matching shaft 361 can squeeze the card rod 382 to slide inside the matching cavity 38 and be engaged with the position inside the card slot 381, thereby limiting and fixing the movable frame 33;During testing, the mating shaft 361 is pushed and held between the motor 36 and the second gear 339. The latching rod 382 is then engaged within the latching slot 381, keeping the movable frame 33 fixed in place. The visual camera 335 and the inspection cylinder 337 then perform optical inspection of the jewelry being inspected by the clamping block 24.

[0048] Working principle:

[0049] Before testing: First, increase the number of testing mechanisms 3 according to the required testing items for the jewelry. Different from the testing mechanism 3, the testing cylinder 337 uses different devices, such as mirrors (polarizers, spectrometers, and microscope cylinders) or sensors (ultraviolet fluorescence, Raman spectroscopy, and infrared spectroscopy sensors). Manual or automatic loading can be selected according to the number of jewelry to be tested. For automatic loading, only a bracket and an electric push rod corresponding to the upper side of the connecting frame 22 and a mechanical clamping arm are required at the loading position.

[0050] In the second step, during manual loading, the connecting frame 22 is manually pressed downward, so that the trigger plate 26 can squeeze the matching block 25 and drive the clamping block 24 away from each other, and the jewelry is placed between the clamping blocks 24 and supported by the limited block 242. The connecting frame 22 is released, and the connecting frame 22 can be moved up and reset under the support of the first spring 213. The matching block 25 is not constrained by the squeezing of the trigger plate 26, and the clamping block 24 elastically clamps the jewelry under the elastic support of the second spring 233. During automatic loading, the connecting frame 22 can be electrically pushed downward by the electric push rod, and the mechanical clamping arm automatically clamps the jewelry and places it in the position of the clamping block 24. The connecting frame 22 is reset to automatically and elastically detect the jewelry. The matching groove 241 provided therein can ensure stable detection of rectangular jewelry when detecting rectangular jewelry, so that the corners of the rectangular jewelry are clamped in the matching groove 241, thereby improving the adaptability of the detected jewelry.

[0051] During inspection: First, the driving shaft 13 drives the circulation module 12 to rotate cyclically, thereby driving the jewelry to be inspected by the clamping mechanism 2 to move cyclically until the jewelry is at the corresponding position of the inspection mechanism 3 for automatic optical inspection;

[0052] The second step is to move the jewelry. The second electric push rod 37 pulls the motor 36 away from the side position of the movable frame 33. The matching shaft 361 is pulled so that the connecting block 362 fits the side of the third gear 35. The synchronous trigger groove 363 corresponds to the position of the card rod 382. The card rod 382 slides out of the card slot 381 to the internal position of the trigger slot 363 under the elastic support of the support tube 383. When the motor 36 drives the matching shaft 361 to rotate, the connecting block 362 can drive the third gear 35 to rotate and mesh with the rack plate 34, driving the movable frame 33 to slide and adjust its position inside the mounting groove 321 as a whole; the focusing tube 331 is close to the mounting groove 321. The position of the jewelry detected by the near clamping block 24 is kept until the detection block 333 is attached to the upper side of the connecting frame 22. When the detection block 333 detects a slight pressure, it is fed back to the external controller. At this time, the second electric push rod 37 pulls the motor 36, so that the connecting block 362 moves to the position between the third gear 35 and the second gear 339. The mating shaft 361 squeezes the clamping rod 382, ​​which slides inside the mating cavity 38 and is engaged with the corresponding clamping groove 381, completing the limit fixation of the movable frame 33. The visual camera 335 cooperates with the first gear 338 to perform optical inspection on the jewelry detected by the clamping block 24.

[0053] The third step is to switch the detection mode. The second electric push rod 37 continues to pull the motor 36 closer to the side of the movable frame 33, pushing the matching shaft 361 so that the connecting block 362 is attached to the side of the second gear 339. At this time, the motor 36 drives the matching shaft 361 to rotate, driving the second gear 339 to mesh with the first gear 338, driving the linkage rod 336 to rotate, and the detection cylinder 337 rotates with the linkage rod 336 until the corresponding detection cylinder 337 and the visual camera 335 are in the same position. Then, the motor 36 stops driving. In this way, different detection operations can be performed by the visual camera 335 in conjunction with different detection cylinders 337, such as polarizing filter detection, spectroscopic detection, and microscopic detection. Similarly, the detection cylinders 337 included in the other detection mechanisms 3 can perform similar ultraviolet fluorescence detection, Raman spectroscopy detection, and infrared spectroscopy detection, so that a variety of optical detection operations can be performed on jewelry at the same work station.

[0054] After testing: In the first step, the jewelry that has passed the test continues to move along with the circulation module 12 until the focusing cylinder 331 is positioned. The focusing cylinder 331 pushes and squeezes the corresponding connecting frame 22 to move downward. Similarly, the clamping block 24 moves the jewelry downward and opens and closes to release the jewelry into the corresponding collecting box 14.

[0055] In the second step, the unqualified jewelry is detected. The detection mechanism 3 switches to the moving state, causing the focusing tube 331 to continue to move downward, triggering the corresponding clamping block 24 to move downward and release the jewelry into the corresponding collection box 14. At the same time, the pressure generated by the detection block 333 is getting greater and greater, and the pressure signal is fed back to the external controller to monitor whether the connecting frame 22 is mechanically triggered to move.

[0056] A method for using a non-destructive jewelry optical inspection device, such as Figure 11 As shown, the following steps are included:

[0057] Step 1: Set up a corresponding number of testing institutions based on the jewelry testing needs and quantity;

[0058] Step 2: The jewelry material is clamped and moved cyclically until it reaches the testing mechanism for testing.

[0059] Step 2.1: After the test is passed, the trigger switches to a different test mode to conduct the remaining test items;

[0060] Step 2.2: If the test fails, the clamped jewelry is triggered to move to the corresponding collection area and the material is released;

[0061] Step 2.1.1: After passing the test, the jewelry that has passed the test will be triggered when it reaches the qualified position, and the clamped jewelry will move to the corresponding collection point and be released;

[0062] In step 2.1.2, if the test fails, step 2.2 is triggered.

[0063] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited thereto. Various changes can be made within the scope of knowledge possessed by those skilled in the art without departing from the spirit of the present invention.

Claims

1. A non-destructive jewelry optical inspection device, comprising a cabinet (1), wherein a control module (11), a circulation module (12), a drive shaft (13) and a collection box (14) are provided on the upper side of the cabinet (1), a clamping mechanism (2) is provided on the side of the circulation module (12), and a detection mechanism (3) is provided on the upper side of the cabinet (1) at a position corresponding to the inner side of the circulation module (12); Its characteristics are: The clamping mechanism (2) includes a movable chamber (21), a first movable block (211), a first constraint rod (212) and a first spring (213) are arranged inside the movable chamber (21), a connecting frame (22) is fixedly mounted on the side of the first movable block (211), a movable groove (23) is opened on the side of the connecting frame (22), a second movable block (231), a second constraint rod (232) and a second constraint rod (232) are arranged inside the movable groove (23), a clamping block (24), a limiting block (242) and a matching block (25) are arranged on the side of the second movable block (231), and a trigger plate (26) is arranged on the side of the matching block (25); The detection mechanism (3) includes a second mounting frame (32), a movable frame (33) is arranged inside the second mounting frame (32), a focusing tube (331) and a protective cover (334) are arranged on the side of the movable frame (33), a connecting rod (332) and a detection block (333) are arranged on the lower side of the focusing tube (331), a linkage rod (336) and a detection tube (337) are arranged inside the protective cover (334), a motor (36) and a second electric push rod (37) are arranged on the side of the movable frame (33), a matching shaft (361) is fixedly installed on the output end of the motor (36), a connecting block (362) is fixedly installed on the side of the matching shaft (361), and a clamping rod (382) and a supporting tube (383) are arranged on the side of the matching shaft (361).

2. The non-destructive jewelry optical inspection device according to claim 1, characterized in that: The movable chamber (21) is vertically opened on the side of the circulation module (12); the first movable block (211) is movably installed inside the movable chamber (21); the first constraint rod (212) passes through and is fixedly installed on the wall of the movable chamber (21); the first spring (213) is fixedly connected between the side of the first movable block (211) and the wall of the movable chamber (21); and the first spring (213) is movably sleeved on the side of the first constraint rod (212); and the connecting frame (22) is horizontal.

3. The non-destructive jewelry optical inspection device according to claim 2, characterized in that: The side of the connecting frame (22) is symmetrically provided with a slot (221) passing through it, the second movable block (231) is movably mounted inside the movable slot (23), the second constraint rod (232) is fixedly mounted through the wall of the movable slot (23), the second spring (233) is fixedly connected between the side of the second movable block (231) and the wall of the movable slot (23), and the second spring (233) is movably sleeved on the side of the second constraint rod (232).

4. The non-destructive jewelry optical inspection device according to claim 3, characterized in that: The clamping block (24) is fixedly mounted on the side of the second movable block (231), and the arc surface of the clamping block (24) is equidistantly provided with matching grooves (241). The limiting block (242) is fixedly mounted on the lower side of the clamping block (24) and the limiting block (242) partially extends to the inner side of the clamping block (24). The matching block (25) is fixedly mounted on the upper side of the clamping block (24) and the matching block (25) is arranged at a position corresponding to the slot (221) on the upper side of the connecting frame (22). The trigger plate (26) is movably mounted inside the slot (221) and the trigger plate (26) is fixedly mounted on the side of the circulation module (12).

5. The non-destructive jewelry optical inspection device according to claim 4, characterized in that: The upper side of the cabinet (1) is fixedly mounted with a first mounting frame (31), a side of the first mounting frame (31) is fixedly mounted with a first electric push rod (311), a second mounting frame (32) is fixedly mounted on the upper side of the cabinet (1), a side of the second mounting frame (32) is provided with a mounting groove (321) passing through it, a movable frame (33) is slidably mounted inside the mounting groove (321), a focusing tube (331) is arranged on the upper side of the clamping block (24), a connecting rod (332) is fixedly mounted on the lower side of the focusing tube (331), and a detection block (333) is fixedly mounted on the upper side of the clamping block (24). The protective cover (334) is fixedly mounted on the side of the connecting rod (332), the protective cover (334) is fixedly mounted on the upper side of the focusing tube (331), a visual camera (335) is fixedly mounted at the center position of the upper side of the protective cover (334), a linkage rod (336) is movably provided inside the protective cover (334), a detection tube (337) is provided on the side of the linkage rod (336), a first gear (338) penetrating the protective cover (334) is fixedly mounted on the upper side of the motor (36), and a second gear (339) is provided on the side of the first gear (338) in meshing engagement.

6. The non-destructive jewelry optical inspection device according to claim 5, characterized in that: The motor (36) is arranged on the side of the movable frame (33), the second electric push rod (37) is fixedly installed on the side of the movable frame (33), and the output end of the second electric push rod (37) passes through the movable frame (33) and is fixed to the side position of the motor (36) through the bracket, the matching shaft (361) passes through the movable frame (33) and extends out, the side of the matching shaft (361) is movably sleeved with a third gear (35), and the third gear (35) is rotatably installed on the side position of the movable frame (33) through the bracket, and the side of the third gear (35) is meshed with a rack plate (34), and the rack plate (34) is vertically fixedly installed on the side position of the second mounting frame (32).

7. The non-destructive jewelry optical inspection device according to claim 6, characterized in that: A matching cavity (38) is provided on the side of the movable frame (33), and clamping grooves (381) are equidistantly provided on the two side walls of the mounting groove (321). The clamping rod (382) is movably installed inside the matching cavity (38), and the clamping rod (382) is clamped and installed at an internal position of the clamping groove (381). The support tube (383) is fixedly connected between the side of the clamping rod (382) and the wall of the matching cavity (38), and the support tube (383) is movably sleeved at a side position of the clamping rod (382). A triggering groove (363) is provided on the side of the matching shaft (361).

8. A method for using the non-destructive jewelry optical inspection device according to claim 7, characterized in that: The following steps are involved: Step 1: Set up a corresponding number of testing institutions based on the jewelry testing needs and quantity; Step 2: The jewelry material is clamped and moved cyclically until it reaches the testing mechanism for testing. Step 2.1: After the test is passed, the trigger switches to a different test mode to conduct the remaining test items; Step 2.2: If the test fails, the clamped jewelry is triggered to move to the corresponding collection area and the material is released; Step 2.1.1: After passing the test, the jewelry that has passed the test will be triggered when it reaches the qualified position, and the clamped jewelry will move to the corresponding collection point and be released; In step 2.1.2, if the test fails, step 2.2 is triggered.

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