Optical detection device for watch coating thickness detection

Abstract

The invention relates to the technical field of watch coating film detection, and discloses an optical detection device for watch coating film thickness detection, the optical detection device comprises a device shell, a feeding belt conveyor and a discharging belt conveyor, the top of the device shell is provided with a control panel, and the inner sides of the upper part and the lower part of the device shell are respectively provided with an upper support cylinder and a lower support cylinder; a supporting piece is connected between the top of the lower supporting cylinder and the upper supporting cylinder, laser is generated through the laser assembly and reflected to a detection piece through the light reflecting piece, after the detection piece is initialized according to film plating standard thickness polarization of the to-be-detected piece, the to-be-detected piece is placed between the laser assembly and the light reflecting piece, and then the to-be-detected piece is detected. The coating thickness is obtained through the offset angle of the laser acting on the detection piece, meanwhile, the position of the laser assembly can be adjusted, automatic thickness detection is conducted on different positions of the whole to-be-detected piece, the detection accuracy and adaptability are guaranteed through the overall design, and compared with traditional optical detection, the detection efficiency and accuracy are improved, and the detection cost is reduced. And the detection cost is also reduced.

Description

Technical Field

[0001] The invention relates to the technical field of watch coating detection, in particular to an optical detection device for detecting the thickness of watch coating. Background Art

[0002] In order to improve the wear resistance, corrosion resistance and appearance quality of watches, modern watches usually have a coating treatment on the dial. The thickness of the coating directly affects the performance and service life of the watch, so accurate detection of the coating thickness has become a key link in the watch manufacturing process.

[0003] Optical detection technology has become an important means of detecting watch coating thickness due to its advantages such as non-contact, high precision and fast response. However, traditional optical interferometry is too sensitive to environmental vibrations and air disturbances. Ellipsometry relies on complex mathematical models and material optical constants. Fluorescence spectroscopy requires the addition of multiple complicated steps and is also limited by the fluorescence characteristics of the material, resulting in high costs and inconvenient detection. Summary of the invention

[0004] The purpose of the present invention is to provide an optical detection device for detecting the thickness of watch coating, aiming to solve the problems of high cost and inconvenient detection in traditional optical detection technology.

[0005] The present invention is implemented as follows: an optical detection device for detecting the thickness of a coating on a watch comprises a device housing, a feeding belt conveyor and a unloading belt conveyor, a control panel is installed on the top of the device housing, an upper support tube and a lower support tube are installed on the inner sides of the upper and lower parts of the device housing respectively, a support sheet is connected between the top of the lower support tube and the upper support tube, a rotating ring is connected between the upper support tube and the lower support tube via a rotating shaft, an adjusting bin is telescopically installed inside one side of the rotating ring of the device housing, a laser assembly is installed on the side of the upper support tube close to the adjusting bin, and a reflector and a detection member are installed on the side of the lower support tube close to the adjusting bin; A plurality of transfer bins are evenly distributed and installed on the outside of the rotating ring. The transfer bins are placed between the loading belt conveyor and the unloading belt conveyor and are used to transfer the test pieces fed from the loading belt conveyor and transfer them to the adjustment bin for thickness detection operations.

[0006] Preferably, a first lifting motor is installed inside the lower support tube, the output shaft of the first lifting motor is connected to a first guide rod, the external thread of the first guide rod is connected to a first connecting block, which is connected to a first mounting frame via the first connecting block, and the reflective element and the detection element are both fixed via the first mounting frame.

[0007] Preferably, the reflective element comprises a first vertically arranged support rod, and the end of the first support rod is connected to a reflective sheet via a damping shaft; The detection member comprises a second vertically arranged support rod, the end of which is mounted with a photosensitive sensor set at the same height as the reflective sheet, and the reflective surface of the reflective sheet faces the photosensitive sensor set.

[0008] Preferably, a second lifting motor is installed inside the upper support tube, the output shaft of the second lifting motor is connected to a second guide rod, the external thread of the second guide rod is connected to a second connecting block, which is connected to a second mounting bracket via the second connecting block, and the laser assembly is fixed via the second mounting bracket.

[0009] Preferably, the laser assembly includes two groups of first guide rails, on which second guide rails arranged perpendicularly to the first guide rails are installed, on which laser generators are installed, and on which the second mounting frame is also installed a liquid cooler for cooling the laser generator.

[0010] Preferably, the transfer bin includes a bin body, both sides of which are connected to third guide rods via rotating shafts, and a driving shaft is also installed on the bottom of the bin body away from the rotating ring via a bearing, and the driving shaft is respectively connected to the two third guide rods via belts.

[0011] Preferably, the external thread of the third guide rod is connected to a third connecting block, and a clamping telescopic machine is horizontally installed on the third connecting block through a bearing. The telescopic parts of the two clamping telescopic machines are arranged facing each other, and the telescopic parts of the clamping telescopic machines are installed with clips.

[0012] Preferably, a third lifting motor is installed at the bottom of the regulating chamber, and meshing gears are sleeved on the output shaft of the third lifting motor and the shaft end of the driving shaft; A deflection motor is installed on one side of the adjustment bin, and a protrusion is also provided on the inner wall of the adjustment bin. A driving belt tooth arranged along the vertical direction of the adjustment bin is installed on the protrusion. The driving belt tooth is driven by the deflection motor, and a transmission gear meshing with the driving belt tooth is sleeved on the outside of the clamping and telescopic machine.

[0013] Preferably, a push-telescopic machine is installed inside one side of the device shell, and the telescopic part of the push-telescopic machine extends to the inside of the device shell and is connected and fixed to the outside of the adjustment bin.

[0014] Preferably, a rotating motor is mounted on the support sheet, a rotating gear is sleeved on the output shaft of the rotating motor, and a transmission gear ring meshing with the rotating gear is disposed on the inner wall of the rotating ring.

[0015] The invention discloses an optical detection device for detecting the coating thickness of watches, and the beneficial effects are as follows: the coating thickness detection device for watches conveys the workpiece to be tested to a transfer bin by a feeding belt conveyor, and transfers the workpiece to be tested to an adjusting bin by a rotating ring, and in the adjusting bin, the height and the deflection angle of the workpiece to be tested are adjusted by a third lifting motor and a deflection motor respectively, and the distances between the laser component, the reflector, and the detection component at the upper and lower parts of the workpiece to be tested are adjusted by a first lifting motor and a second lifting motor respectively, a laser is generated by a laser component and reflected onto the detection component by a reflector, and after the detection component is initialized according to the polarization of the coating standard thickness of the workpiece to be tested, the workpiece to be tested is placed between the laser component and the reflector, and the coating thickness is obtained by the angle of deviation of the laser acting on the detection component, and the position of the laser component can be adjusted at the same time, and automatic thickness detection is performed on different positions of the entire workpiece to be tested, and the overall design ensures the accuracy and adaptability of the detection, and compared with traditional optical detection, not only the detection efficiency and accuracy are improved, but also the detection cost is reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Schematic diagram of an optical detection device for detecting the thickness of a watch coating provided by an embodiment of the present invention; Figure 2 It is a schematic diagram of an inner view of an optical detection device for detecting the coating thickness of a watch provided by an embodiment of the present invention; Figure 3 It is a schematic diagram of the inside view of the lower support tube and the upper support tube of an optical detection device for detecting the coating thickness of a watch provided by an embodiment of the present invention; Figure 4 The present invention provides an optical detection device for detecting the thickness of a watch coating. Figure 3 A partial top-down schematic diagram; Figure 5 The present invention provides an optical detection device for detecting the thickness of a watch coating. Figure 3 A partial top view diagram; Figure 6 The present invention provides an optical detection device for detecting the thickness of a watch coating. Figure 5 A schematic diagram of the partially enlarged structure at center A; Figure 7 The present invention is a schematic diagram of the structure of a reflective component and a detection component of an optical detection device for detecting the coating thickness of a watch provided by an embodiment of the present invention.

[0017] Marking Description: 1. Device housing; 2. Loading belt conveyor; 3. Unloading belt conveyor; 4. Lower support cylinder; 5. Upper support cylinder; 6. Transfer bin; 7. Adjustment bin; 8. Rotating ring; 11. Control panel; 41. first lifting motor; 42. first mounting frame; 43. first guide rod; 44. first connecting block; 45. reflective member; 46. detection member; 47. support sheet; 451, first support rod; 452, reflective sheet; 461, second support rod; 462, photosensitive sensor set; 51. second lifting motor; 52. second mounting frame; 53. second guide rod; 54. second connecting block; 55. laser assembly; 551, first guide rail; 552, second guide rail; 553, laser generator; 554, liquid cooler; 61. bin body; 62. third guide rod; 63. drive shaft; 64. third connecting block; 65. clamping telescopic machine; 66. clip; 651, transmission gear; 71. Pushing telescopic machine; 72. Third lifting motor; 73. Protruding part; 74. Driving belt teeth; 75. Deflection motor; 81. Rotate the motor; 82. Rotate the gear; 83. Transmit the gear ring. DETAILED DESCRIPTION

[0018] In order to make the purpose, technical solution and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.

[0019] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on the present invention. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0020] The implementation of the present invention is described in detail below in conjunction with specific embodiments.

[0021] In this embodiment: Reference Figure 1-2 As shown, a preferred embodiment of the present invention is provided.

[0022] The optical detection device for detecting the coating thickness of watches in this embodiment comprises a device housing 1, a feeding belt conveyor 2 and a discharging belt conveyor 3. A control panel 11 is installed on the top of the device housing 1. An upper support tube 5 and a lower support tube 4 are installed on the inner sides of the upper and lower parts of the device housing 1 respectively. A support sheet 47 is connected between the top of the lower support tube 4 and the upper support tube 5. A rotating ring 8 is also connected between the upper support tube 5 and the lower support tube 4 through a rotating shaft. An adjusting bin 7 is telescopically installed inside the device housing 1 on one side of the rotating ring 8. A laser assembly 55 is installed on the side of the upper support tube 5 close to the adjusting bin 7. A reflector 45 and a detection member 46 are installed on the side of the lower support tube 4 close to the adjusting bin 7. A plurality of transfer bins 6 are evenly distributed and installed on the outside of the rotating ring 8. The transfer bins 6 are placed between the feeding belt conveyor 2 and the unloading belt conveyor 3 and are used to transfer the test pieces fed from the feeding belt conveyor 2 and transfer them to the adjustment bin 7 for thickness detection operation. The control panel 11 includes a touch screen and a PLC of model S4-400, which realizes real-time control of various components through PLC programming to achieve automated detection operations, and displays the detection process and results through the touch screen in real time.

[0023] See attached Figure 3 As shown, a first lifting motor 41 is installed inside the lower support tube 4, and the output shaft of the first lifting motor 41 is connected to a first guide rod 43, and the first guide rod 43 is externally threadedly connected to a first connecting block 44, which is connected to a first mounting frame 42 through the first connecting block 44, and the reflective member 45 and the detection member 46 are both fixed through the first mounting frame 42, and the first lifting motor 41 drives the first guide rod 43 to rotate, thereby pushing the first connecting block 44 connected to its external thread to rise and fall inside the lower support tube 4, and then the reflective member 45 and the detection member 46 are driven by the first mounting frame 42 to complete the lifting operation, so as to meet the detection distance adjustment requirements of the test members of different specifications and the reflective member 45 and the detection member 46; Among them, refer to the attached Figure 7As shown, the reflector 45 includes a vertically arranged first support rod 451, and the end of the first support rod 451 is connected to a reflective sheet 452 through a damping shaft. The detection member 46 includes a vertically arranged second support rod 461, and the end of the second support rod 461 is installed with a photosensitive sensor set 462 at the same height as the reflective sheet 452, and the reflecting surface of the reflective sheet 452 faces the photosensitive sensor set 462. The deflection angle of the reflective sheet 452 can be adjusted by the damping shaft so that the light beam of the laser assembly 55 can act on the detection member 46 through the reflective sheet 452. The photosensitive sensor set 462 is used to initialize and obtain the position of the laser light beam reflected by the reflective sheet 452. The initial standard is: the laser passes through the coating of the watch lens and is reflected by the reflective sheet 452, and then the position is detected by the photosensitive sensor set 462; when the light beam passing through the test piece and reflected by the reflective sheet 452 deviates from the initial standard, the coating thickness defect can be quickly judged according to the deviation distance.

[0024] See attached Figure 4 As shown, a second lifting motor 51 is installed inside the upper support tube 5, and the output shaft of the second lifting motor 51 is connected to a second guide rod 53, and the second guide rod 53 is externally threadedly connected to a second connecting block 54, which is connected to a second mounting frame 52 through the second connecting block 54, and the laser assembly 55 is fixed through the second mounting frame 52, and the second lifting motor 51 drives the second guide rod 53 to rotate, thereby pushing the second connecting block 54 connected to its external thread to rise and fall inside the upper support tube 5, and then the second mounting frame 52 drives the laser assembly 55 to complete the lifting operation, so as to meet the detection distance adjustment requirements of different specifications of the test pieces and the laser assembly 55; The laser assembly 55 includes two groups of first guide rails 551, on which the second guide rails 552 perpendicularly arranged to the first guide rails 551 are installed, and on which the laser generator 553 is installed, the first guide rails 551 and the second guide rails 552 are installed, and the position of the laser generator 553 is adjusted by using the first guide rails 551 and the second guide rails 552 to achieve irradiation of the laser beam on different positions of the test piece, and a liquid cooler 554 is also installed on the second mounting frame 52, and the liquid cooler 554 is used to cool the laser generator 553 to prevent the high-precision laser generator 553 from being overheated and damaged.

[0025] It is worth noting that, referring to Figure 5-6As shown, the transfer bin 6 includes a bin body 61, both sides of the bin body 61 are connected to third guide rods 62 through a rotating shaft, and a driving shaft 63 is installed on the bottom of the bin body 61 away from the rotating ring 8 through a bearing, and the driving shaft 63 is respectively connected to the two third guide rods 62 through a belt, and the third guide rod 62 is externally threadedly connected to a third connecting block 64, and a clamping telescopic machine 65 is horizontally installed on the third connecting block 64 through a bearing, and the telescopic parts of the two clamping telescopic machines 65 are arranged facing each other, and the telescopic parts of the clamping telescopic machines 65 are installed with a clip 66, under the action of the driving shaft 63, the two third guide rods 62 can rotate synchronously, and then push the third connecting block 64 connected to the external thread thereof to achieve lifting, thereby driving the height adjustment of the test piece clamped and fixed in the clip 66; Furthermore, in the attached Figure 5 In the embodiment, a third lifting motor 72 is installed at the bottom of the regulating bin 7, and the output shaft of the third lifting motor 72 and the shaft end of the driving shaft 63 are both sleeved with meshing gears, and a pushing telescopic machine 71 is installed inside one side of the device housing 1, and the telescopic part of the pushing telescopic machine 71 extends to the inside of the device housing 1, and is connected and fixed to the outside of the regulating bin 7. Under the action of the pushing telescopic machine 71, the regulating bin 7 can act on the outside of the bin body 61, and make the gear of the output shaft of the third lifting motor 72 mesh with the gear at the end of the driving shaft 63, and then use the third lifting motor 72 to drive the two third guide rods 62 to rotate, so as to achieve the function of fine-tuning the height of the test piece, so as to better detect the coating thickness on the surface of the test piece; It is worth noting that a deflection motor 75 is installed on one side of the adjustment bin 7, and a protrusion 73 is also provided on the inner wall of the adjustment bin 7. A driving belt tooth 74 arranged along the vertical direction of the adjustment bin 7 is installed on the protrusion 73, and the driving belt tooth 74 is driven by the deflection motor 75. The outer part of the clamping and telescopic machine 65 is sleeved with a transmission gear 651 meshing with the driving belt tooth 74. When the adjustment bin 7 is pushed to the outside of the bin body 61 by pushing the telescopic machine 71, the driving belt tooth 74 will also mesh with the transmission gear 651. The deflection motor 75 is used to drive the driving belt tooth 74 to rotate, and then the clamping and telescopic machine 65 in the transmission gear 651 is driven to rotate, so that the deflection angle of the test piece can be better adjusted according to the polarization performance of the coating.

[0026] In the attached Figure 4 and attached Figure 5In the figure, a rotating motor 81 is installed on the support plate 47, and the output shaft of the rotating motor 81 is sleeved with a rotating gear 82. The inner wall of the rotating ring 8 is provided with a transmission gear ring 83 meshing with the rotating gear 82. The rotating gear 82 of the output shaft of the rotating motor 81 is used to drive the rotating ring 8 with the transmission gear ring 83 on the inner wall to rotate, thereby pushing the external transfer bin 6 to transport the test pieces to the adjustment bin 7 for testing through the feeding belt conveyor 2 in turn.

[0027] The coating thickness detection device of the watch conveys the workpiece to be tested to the transfer bin 6 by the feeding belt conveyor 2, and transfers the workpiece to be tested to the adjustment bin 7 by the rotating ring 8. In the adjustment bin 7, the height and deflection angle of the workpiece to be tested are adjusted by the third lifting motor 72 and the deflection motor 75 respectively. The distance between the laser component 55 and the reflector 45 and the detection component 46 at the upper and lower parts of the workpiece to be tested are adjusted by the first lifting motor 41 and the second lifting motor 51. The laser is generated by the laser component 55 and reflected to the detection component 46 by the reflector 45. After the detection component 46 is initialized according to the polarization of the coating standard thickness of the workpiece to be tested, the workpiece to be tested is placed between the laser component 55 and the reflector 45. The coating thickness is obtained by the angle of deviation of the laser acting on the detection component 46. At the same time, the position of the laser component 55 can be adjusted to perform automatic thickness detection on different positions of the entire workpiece to be tested. The overall design ensures the accuracy and adaptability of the detection. Compared with traditional optical detection, it not only improves the detection efficiency and accuracy, but also reduces the detection cost.

[0028] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An optical detection device for detecting the thickness of a watch coating, characterized in that: It includes a device shell, a feeding belt conveyor and a unloading belt conveyor, a control panel is installed on the top of the device shell, an upper support tube and a lower support tube are installed on the inner sides of the upper and lower parts of the device shell respectively, a support sheet is connected between the top of the lower support tube and the upper support tube, a rotating ring is also connected between the upper support tube and the lower support tube through a rotating shaft, an adjusting bin is telescopically installed inside one side of the rotating ring of the device shell, a laser assembly is installed on the side of the upper support tube close to the adjusting bin, and a reflector and a detection member are installed on the side of the lower support tube close to the adjusting bin; A plurality of transfer bins are evenly distributed and installed on the outside of the rotating ring. The transfer bins are placed between the loading belt conveyor and the unloading belt conveyor and are used to transfer the test pieces fed from the loading belt conveyor and transfer them to the adjustment bin for thickness detection operations.

2. An optical detection device for detecting the thickness of a watch coating as claimed in claim 1, characterized in that: A first lifting motor is installed inside the lower support tube, the output shaft of the first lifting motor is connected to a first guide rod, the external thread of the first guide rod is connected to a first connecting block, which is connected to a first mounting frame via the first connecting block, and the reflective element and the detection element are both fixed via the first mounting frame.

3. An optical detection device for detecting the thickness of a watch coating as claimed in claim 2, characterized in that: The reflective element comprises a first vertically arranged support rod, the end of which is connected to a reflective sheet via a damping shaft; The detection member comprises a second vertically arranged support rod, the end of which is mounted with a photosensitive sensor set at the same height as the reflective sheet, and the reflective surface of the reflective sheet faces the photosensitive sensor set.

4. An optical detection device for detecting the thickness of a watch coating as claimed in claim 1, characterized in that: A second lifting motor is installed inside the upper support tube, the output shaft of the second lifting motor is connected to a second guide rod, the external thread of the second guide rod is connected to a second connecting block, which is connected to a second mounting frame via the second connecting block, and the laser assembly is fixed via the second mounting frame.

5. An optical detection device for detecting the thickness of a watch coating as claimed in claim 4, characterized in that: The laser assembly includes two groups of first guide rails, on which second guide rails perpendicular to the first guide rails are installed, on which laser generators are installed, and on which the second mounting frame is also installed a liquid cooler for cooling the laser generator.

6. An optical detection device for detecting the thickness of a watch coating as claimed in claim 1, characterized in that: The transfer bin includes a bin body, both sides of which are connected to third guide rods via rotating shafts, and a driving shaft is also installed on the bottom of the bin body on one side away from the rotating ring through a bearing, and the driving shaft is respectively connected to the two third guide rods through belts.

7. An optical detection device for detecting the thickness of a watch coating as claimed in claim 6, characterized in that: The external thread of the third guide rod is connected with a third connecting block, and a clamping telescopic machine is horizontally installed on the third connecting block through a bearing. The telescopic parts of the two clamping telescopic machines are arranged facing each other, and the telescopic parts of the clamping telescopic machines are installed with clips.

8. An optical detection device for detecting the thickness of a watch coating as claimed in claim 7, characterized in that: A third lifting motor is installed at the bottom of the regulating bin, and meshing gears are sleeved on the output shaft of the third lifting motor and the shaft end of the driving shaft; A deflection motor is installed on one side of the adjustment bin, and a protrusion is also provided on the inner wall of the adjustment bin. A driving belt tooth arranged along the vertical direction of the adjustment bin is installed on the protrusion. The driving belt tooth is driven by the deflection motor, and a transmission gear meshing with the driving belt tooth is sleeved on the outside of the clamping and telescopic machine.

9. An optical detection device for detecting the thickness of a watch coating as claimed in claim 1, characterized in that: A push-telescopic machine is installed inside one side of the device shell, and the telescopic part of the push-telescopic machine extends to the inside of the device shell and is connected and fixed to the outside of the adjustment bin.

10. An optical detection device for detecting the thickness of a watch coating as claimed in claim 1, characterized in that: A rotating motor is installed on the supporting sheet, a rotating gear is sleeved on the output shaft of the rotating motor, and a transmission gear ring meshing with the rotating gear is arranged on the inner wall of the rotating ring.

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