Quartz tube wall thickness on-line detection equipment based on machine vision

Abstract

The application relates to the technical field of quartz product production, and discloses quartz tube wall thickness online detection equipment based on machine vision, which comprises a detection frame, a laser emitter, a linear array CCD receiver, a display screen and a fixed frame one, the display screen is installed on the front of the detection frame, a rotating shaft one is rotationally connected to the bottom of one side of the inside of the detection frame through a bearing, a rotating shaft two is rotationally connected to the bottom of the other side of the inside of the detection frame through a bearing, the outer walls of the rotating shaft one and the rotating shaft two are respectively fixedly provided with driving rollers one and two, and a motor is installed on the front of the detection frame. Through the arrangement of the supporting assembly, the contact between the pressing roller and the top end of the quartz tube can be realized, the fixed frame two is finally extruded to make the rubber pad contact the bottom of the connecting frame, the detection distance between the laser emitter and the linear array CCD receiver and the quartz tube is the same when the laser emitter and the linear array CCD receiver detect quartz tubes of different specifications, the laser emitter and the linear array CCD receiver can automatically adapt to quartz tubes of different specifications, and the detection accuracy is ensured.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of quartz product production, in particular to a quartz tube wall thickness online detection equipment based on machine vision. BACKGROUND

[0002] In the field of quartz product production, quartz tube is an important basic material and is widely used in semiconductor, optical communication, lighting and other industries. The uniformity of the wall thickness of the quartz tube is one of the key factors affecting its quality and performance. Non-uniform wall thickness may cause the quartz tube to break, deform and other problems during use, reducing the reliability and service life of the product. Therefore, it is crucial to accurately detect the wall thickness of the quartz tube.

[0003] However, when the existing quartz tube wall thickness online detection equipment is used, the detection distance between the detection sensor and the quartz tube needs to be manually adjusted when detecting different specifications of the quartz tube, so as to ensure the same detection distance condition and avoid affecting the accuracy of the detection. Manual adjustment is difficult to quickly adapt to the detection needs of different specifications of the quartz tube, thereby affecting the detection efficiency. Therefore, we propose a quartz tube wall thickness online detection equipment based on machine vision. SUMMARY

[0004] To solve the above technical problems, the basic idea of the technical scheme adopted by the application is:

[0005] The quartz tube wall thickness online detection equipment based on machine vision comprises a detection frame, a laser emitter, a linear array CCD receiver, a display screen and a fixed frame one. The display screen is installed on the front of the detection frame. A rotating shaft one is rotatably connected to the inside of the detection frame near the bottom of one side through a bearing. A rotating shaft two is rotatably connected to the inside of the detection frame near the bottom of the other side through a bearing. A driving roller one and a driving roller two are fixedly sleeved on the outer walls of the rotating shaft one and the rotating shaft two, respectively. A motor is installed on the front of the detection frame. The rotating shaft one is installed on the output end of the motor. The rotating shaft one and the rotating shaft two are in transmission connection. A screw one is rotatably connected to the top end of the fixed frame one through a bearing seat. The screw one is in threaded connection with the threaded hole opened at the top end of the detection frame. Pressure rollers are rotatably connected to the inner walls of the detection frame near the two sides through bearing seats. A fixed plate is arranged between the two pressure rollers. The laser emitter and the linear array CCD receiver are both installed at the bottom end of the fixed plate. A support assembly for supporting the fixed plate is arranged at the bottom end of the fixed plate near the two sides. A limiting column is installed at the top end of the fixed plate. The limiting column movably penetrates the top end of the fixed frame one. A spring one surrounds the outer wall of the limiting column. The spring one is installed between the top end of the fixed plate and the inner wall top end of the fixed frame one. A fixed assembly for fixing the limiting column is arranged at the top end of the fixed frame one. The fixed frame one and the inner wall of the detection frame are in sliding connection. An adsorption assembly for stabilizing the detection frame is arranged at the bottom end of the detection frame.

[0006] As a preferred embodiment of the present application, the supporting assembly comprises two connecting frames and a fixed frame, the inner wall of the fixed frame is rotatably connected with a resisting roller through a bearing seat, the top end of the fixed frame is provided with a limiting rod, the connecting frame is installed at the bottom end of the fixed plate, the bottom end of the connecting frame is provided with a rod groove, the limiting rod is inserted into the rod groove, a second spring is fixedly connected between the top end of the limiting rod and the inner wall top end of the rod groove, a rubber pad is installed at the top end of the fixed frame two, a damper is fixedly connected between the inner wall top end of the connecting frame and the top end of the fixed frame two, the rubber pad and the damper can play a good damping effect on the fixed plate, greatly reducing the influence of the vibration of the quartz tube on the laser emitter and the linear array CCD receiver during the conveying process, and further improving the detection accuracy.

[0007] As a preferred embodiment of the present application, the shaft one and the shaft two both penetrate the back of the detection frame, and the one end of the shaft one is provided with a synchronous wheel one, and the one end of the shaft two is provided with a synchronous wheel two, and the outer walls of the synchronous wheel one and the synchronous wheel two are drivingly provided with a synchronous belt, and the synchronous wheel one, the synchronous wheel two and the synchronous belt can drive the shaft one to rotate.

[0008] As a preferred embodiment of the present application, the supporting roller is rotatably connected between the driving roller one and the driving roller two through a bearing seat, and the top end of the screw one is provided with a knob one, and the supporting roller can support the quartz tube during the conveying process.

[0009] As a preferred embodiment of the present application, the fixed assembly comprises an extrusion plate and a screw two, the outer wall of the limiting column is provided with a fixed groove, the extrusion plate is inserted into the fixed groove, the bottom end of the extrusion plate is provided with a sliding block, the top end of the fixed plate is provided with a moving groove, the sliding block is slidably connected with the moving groove, the one end of the screw two is rotatably connected with the inner wall of the moving groove through a bearing seat, the screw two movably penetrates the moving groove, and the screw two is rotatably connected with the fixed plate through a bearing, the one end of the screw two is provided with a knob two, and the sliding block is threadedly sleeved on the outer wall of the screw two, and the extrusion plate can extrude the extrusion plate and the fixed groove, so as to fix the limiting column.

[0010] As a preferred embodiment of the present application, the inner wall of the fixed groove is provided with an anti-skid pad, and the one end of the extrusion plate is in close contact with the anti-skid pad, and the anti-skid pad can increase the friction between the extrusion plate and the fixed groove.

[0011] As a preferred embodiment of the present application, the outer wall of the fixed frame one is provided with a limiting sliding plate, the inner wall of the detection frame is provided with a limiting sliding groove, and the limiting sliding plate is slidably connected with the limiting sliding groove, and the limiting sliding plate and the limiting sliding groove can limit the fixed frame one, so as to ensure the stability of the fixed frame one during use.

[0012] In a preferred embodiment of the present invention, the adsorption assembly includes a support frame, which is installed at the bottom of the detection frame. An adsorption cavity is opened at the bottom of the support frame. A piston plate is slidably connected to the inner wall of the adsorption cavity. A connecting plate is installed at the top of the piston plate. A screw is rotatably connected to the top of the connecting plate through a bearing seat. The screw is threadedly connected to a threaded hole opened at the bottom of the support frame. A knob is installed at the top of the screw.

[0013] In a preferred embodiment of the present invention, a support pad is installed at the bottom of the support frame. The support pad is made of PVC soft rubber. By setting the support pad, the sealing between the support frame and the workbench surface can be increased.

[0014] Compared with the prior art, the present invention has the following advantages:

[0015] This invention, by setting up a support component, allows the roller to contact the top of the quartz tube, ultimately squeezing the fixed frame and causing the rubber pad to contact the bottom of the connecting frame. This ensures that the laser emitter and the linear CCD receiver maintain the same detection distance from the quartz tube when detecting different specifications, automatically adapting to different specifications and guaranteeing detection accuracy. Furthermore, by setting up the rubber pad and damper, the fixed plate can effectively reduce vibration, greatly reducing the impact of quartz tube vibration during transport on the laser emitter and the linear CCD receiver, further improving detection accuracy.

[0016] This invention, by setting up an adsorption component, allows the support frame to be firmly adsorbed onto the workbench, thus fixing the detection frame on the workbench and greatly improving the stability of the detection frame during use, ensuring the normal operation of the detection.

[0017] The specific embodiments of the present invention will now be described in further detail with reference to the accompanying drawings. Attached Figure Description

[0018] In the attached diagram:

[0019] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0020] Figure 2 This is a front cross-sectional view of the present invention;

[0021] Figure 3 For the present invention Figure 2 Enlarged structural diagram of section A in the middle;

[0022] Figure 4 For the present invention Figure 2 Enlarged structural diagram of section B;

[0023] Figure 5This is a schematic diagram of the top cross-sectional structure of drive roller one and drive roller two of the present invention;

[0024] Figure 6 This is a side cross-sectional view of the support component of the present invention;

[0025] Figure 7 This is a side cross-sectional view of the adsorption component of the present invention.

[0026] In the diagram: 1. Detection frame; 2. Motor; 3. Shaft 1; 4. Synchronous pulley 1; 5. Shaft 2; 6. Synchronous belt; 7. Synchronous pulley 2; 8. Drive roller 1; 9. Drive roller 2; 10. Support roller; 11. Protective shell; 12. Fixing frame 1; 13. Screw 1; 14. Knob 1; 15. Pressure roller; 16. Fixing plate; 17. Laser emitter; 18. Linear CCD receiver; 19. Limiting post; 20. Extrusion plate; 21. Slider; 22. Moving groove; 23. 24. Screw 2; 25. Knob 2; 26. Fixing groove; 27. Anti-slip pad; 28. Spring 1; 29. ​​Limiting slide plate; 30. Limiting slide groove; 31. Display; 32. Support frame; 33. Connecting frame; 34. Fixing frame 2; 35. Anti-roller; 36. Rubber pad; 37. Limiting rod; 38. Rod groove; 39. Spring 2; 40. Damper; 41. Adsorption chamber; 42. Screw 3; 43. Knob 3; 44. Piston plate; 45. Connecting plate; 46. Support pad. Detailed Implementation

[0027] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate the present invention.

[0028] like Figures 1 to 7As shown, the present invention provides a technical solution: an online quartz tube wall thickness detection device based on machine vision, including a detection frame 1, a laser emitter 17, a linear CCD receiver 18, a display screen, and a fixed frame 12. The display screen is installed on the front of the detection frame 1. Inside the detection frame 1, near one bottom side, a rotating shaft 3 is rotatably connected via a bearing. Inside the detection frame 1, near the other bottom side, a rotating shaft 5 is rotatably connected via a bearing. Drive roller 8 and drive roller 9 are respectively fixedly sleeved on the outer walls of rotating shaft 3 and rotating shaft 5. A motor 2 is installed on the front of the detection frame 1, and rotating shaft 3 is installed at the output end of the motor 2. Rotating shaft 3 and rotating shaft 5 are connected by a transmission. A screw 13 is rotatably connected to the top of the fixed frame 12 via a bearing seat. The screw 13 is connected to a screw threaded through a threaded opening at the top of the detection frame 1. The detection frame 1 is connected by a threaded connection. Pressure rollers 15 are rotatably connected to the inner wall of the detection frame 1 near both sides via bearing seats. A fixing plate 16 is positioned between the two pressure rollers 15. A laser emitter 17 and a linear CCD receiver 18 are both mounted on the bottom of the fixing plate 16. Support components for supporting the fixing plate 16 are located near both sides of the bottom of the fixing plate 16. A limiting post 19 is mounted on the top of the fixing plate 16, movably penetrating the top of the fixing frame 12. A spring 27 surrounds the outer wall of the limiting post 19, and the spring 27 is installed between the top of the fixing plate 16 and the top of the inner wall of the fixing frame 12. A fixing component for fixing the limiting post 19 is located on the top of the fixing frame 12. The fixing frame 12 is slidably connected to the inner wall of the detection frame 1. An adsorption component for stabilizing the detection frame 1 is located at the bottom of the detection frame 1.

[0029] Furthermore, the support assembly includes a connecting frame 32 and a second fixed frame 33. The inner wall of the second fixed frame 33 is rotatably connected to a roller 34 via a bearing seat. A limit rod 36 is installed at the top of the second fixed frame 33. The connecting frame 32 is installed at the bottom of the fixed plate 16. A rod groove 37 is opened at the bottom of the connecting frame 32. The limit rod 36 is inserted into the rod groove 37. A second spring 38 is fixedly connected between the top of the limit rod 36 and the top of the inner wall of the rod groove 37. A rubber pad 35 is installed at the top of the second fixed frame 33. A damper 39 is fixedly connected between the top of the inner wall of the connecting frame 32 and the top of the second fixed frame 33.

[0030] By setting rubber pads 35 and dampers 39, the fixed plate 16 can effectively reduce vibration, greatly reducing the impact of the quartz tube vibration on the laser emitter 17 and the linear CCD receiver 18 during transmission, and further improving the detection accuracy.

[0031] Furthermore, both the first rotating shaft 3 and the second rotating shaft 5 penetrate the back of the detection frame 1, and a first synchronous pulley 4 is installed at one end of the first rotating shaft 3, and a second synchronous pulley 7 is installed at one end of the second rotating shaft 5. The outer walls of the first synchronous pulley 4 and the second synchronous pulley 7 are fitted with a synchronous belt 6.

[0032] By setting synchronous pulley 4, synchronous pulley 7 and synchronous belt 6, the rotating shaft 3 can drive the rotating shaft 5 to rotate.

[0033] Furthermore, a support roller 10 is provided between the drive roller 8 and the drive roller 9. The support roller 10 is rotatably connected to the inner wall of the detection frame 1 through a bearing seat. A knob 14 is installed at the top of the screw 13.

[0034] The quartz tube can be supported during the conveying process by setting the support roller 10.

[0035] Furthermore, the fixing assembly includes an extrusion plate 20 and a screw 23. The outer wall of the limiting post 19 has a fixing groove 25. The extrusion plate 20 is inserted into the fixing groove 25. A slider 21 is installed at the bottom of the extrusion plate 20. A moving groove 22 is opened at the top of the fixing plate 16. The slider 21 is slidably connected to the moving groove 22. One end of the screw 23 is rotatably connected to the inner wall of the moving groove 22 through a bearing seat. The screw 23 moves through the moving groove 22 and is rotatably connected to the fixing plate 16 through a bearing. A knob 24 is installed at one end of the screw 23. The slider 21 is threaded onto the outer wall of the screw 23.

[0036] The extrusion plate 20 can be set to compress the fixing groove 25, thereby fixing the limiting post 19.

[0037] Furthermore, an anti-slip pad 26 is installed on the inner wall of the fixing groove 25, and the anti-slip pad 26 is in close contact with one end of the extrusion plate 20;

[0038] By setting the anti-slip pad 26, the friction between the extrusion plate 20 and the fixing groove 25 can be increased.

[0039] Furthermore, a limiting slide plate 28 is installed on the outer wall of the fixed frame 12, and a limiting groove 29 is opened on the inner wall of the detection frame 1. The limiting slide plate 28 and the limiting groove 29 are slidably connected.

[0040] The limiting slide plate 28 and the limiting slide groove 29 can limit the fixed frame 12 and ensure the stability of the fixed frame 12 during use.

[0041] Furthermore, the adsorption assembly includes a support frame 31, which is installed at the bottom of the detection frame 1. An adsorption chamber 40 is opened at the bottom of the support frame 31. A piston plate 43 is slidably connected to the inner wall of the adsorption chamber 40. A connecting plate 44 is installed at the top of the piston plate 43. A screw 41 is rotatably connected to the top of the connecting plate 44 through a bearing seat. The screw 41 is threadedly connected to a threaded hole opened at the bottom of the support frame 31. A knob 42 is installed at the top of the screw 41.

[0042] Furthermore, a support pad 45 is installed at the bottom of the support frame 31, and the support pad 45 is made of PVC soft rubber.

[0043] By setting the support pad 45, the sealing between the support frame 31 and the workbench surface can be increased.

[0044] The implementation principle of the machine vision-based online quartz tube wall thickness detection device is as follows: During operation, the laser emitter 17 and the linear CCD receiver 18 are activated. One end of the quartz tube is then inserted into the detection frame 1. Knob 14 is then rotated, causing screw 13 to rotate. Screw 13 moves fixed frame 12 downwards. Fixed frame 12 first moves fixed plate 16 downwards via spring 27. Fixed plate 16 moves connecting frame 32 downwards. Connecting frame 32 moves fixed frame 33 downwards via damper 39. Fixed frame 33 moves roller 34 downwards, causing roller 34 to contact the quartz tube. As fixed frame 12 continues to move downwards, fixed frame 33 moves limit rod 36 upwards, pressing spring 38. Finally, fixed frame 33 moves rubber pad 35 to contact the bottom of connecting frame 32. Then, fixed plate 16 moves limit post 19 upwards, pressing spring 27. Fixed frame 12... Finally, the pressure roller 15 will come into contact with the quartz tube, pressing it tightly. Then, the knob 24 will be turned, which will drive the screw 23 to rotate. The screw 23 will drive the slider 21 to move, and the slider 21 will drive the extrusion plate 20 to move towards the limiting post 19. Finally, the extrusion plate 20 will be pressed against the inner wall of the fixing groove 25, fixing the limiting post 19. Then, the motor 2 will be started, which will drive the rotating shaft 3 to rotate. The rotating shaft 3 will drive the synchronous wheel 4 to rotate, and the synchronous wheel 4 will move through the same... The stepper belt 6 drives the synchronous pulley 7 to rotate, which in turn drives the rotating shaft 5 to rotate. The rotating shafts 3 and 5 respectively drive the drive rollers 8 and 9 to rotate. The drive rollers 8 and 9 then transport the quartz tube within the detection frame 1, allowing it to pass through the laser emitter 17 and the linear CCD receiver 18. The laser beam is incident on the outer wall of the quartz tube, where partial reflection forms the first light spot. The transmitted light is reflected on the inner wall, forming the second light spot. The distance Δd between the two light spots is received by the CCD, and the wall thickness t = ... θ is the incident angle, and n is the refractive index of quartz (≈1.46). Thus, the wall thickness of the quartz tube can be detected online via the laser emitter 17 and the linear CCD receiver 18. By setting up a support assembly, the roller 34 can contact the top of the quartz tube, ultimately squeezing the fixed frame 33 to drive the rubber pad 35 to contact the bottom of the connecting frame 32. This ensures that the laser emitter 17 and the linear CCD receiver 18 maintain the same detection distance from the quartz tube when detecting different specifications, automatically adapting to different specifications and ensuring detection accuracy. Furthermore, the rubber pad 35 and damper 39 provide excellent support for the fixed plate 16. The shock absorption effect greatly reduces the impact of the quartz tube vibration during transmission on the laser emitter 17 and the linear CCD receiver 18, further improving the detection accuracy. When installing and using the detection frame 1, place the detection frame 1 on the workbench, and then turn the knob 3 42. The knob 3 42 drives the screw 3 41 to move upward. The screw 3 41 drives the piston plate 43 to move upward through the connecting plate 44, causing the piston plate 43 to draw the air below, so that the support frame 31 can be firmly attached to the workbench, fixing the detection frame 1 on the workbench, greatly improving the stability of the detection frame 1 during use and ensuring the normal operation of the detection.

Claims

1. A machine vision-based online quartz tube wall thickness detection device, comprising a detection frame (1), a laser emitter (17), a linear CCD receiver (18), a display screen, and a fixed frame (12), wherein the display screen is mounted on the front of the detection frame (1), characterized in that, Inside the detection frame (1), near one side bottom, a rotating shaft 1 (3) is rotatably connected via a bearing. Inside the detection frame (1), near the other side bottom, a rotating shaft 2 (5) is rotatably connected via a bearing. The outer walls of the rotating shaft 1 (3) and the rotating shaft 2 (5) are respectively fixedly fitted with a drive roller 1 (8) and a drive roller 2 (9). A motor (2) is installed on the front of the detection frame (1). The rotating shaft 1 (3) is installed at the output end of the motor (2). The rotating shaft 1 (3) and the rotating shaft 2 (5) are connected in a transmission. The top of the fixed frame 1 (12) is rotatably connected via a bearing seat to a screw 1 (13). The screw 1 (13) is threadedly connected to a threaded hole at the top of the detection frame (1). The inner walls of the detection frame (1) near both sides are rotatably connected via bearing seats to pressure rollers (15). Between the two pressure rollers (15) is a... There is a fixed plate (16), the laser emitter (17) and the linear CCD receiver (18) are both installed at the bottom of the fixed plate (16), the bottom of the fixed plate (16) is provided with support components for supporting the fixed plate (16) near both sides, the top of the fixed plate (16) is installed with a limit post (19), the limit post (19) is movable through the top of the fixed frame (12), the outer wall of the limit post (19) is surrounded by a spring (27), the spring (27) is installed between the top of the fixed plate (16) and the top of the inner wall of the fixed frame (12), the top of the fixed frame (12) is provided with a fixing component for fixing the limit post (19), the fixed frame (12) is slidably connected to the inner wall of the detection frame (1), and the bottom of the detection frame (1) is provided with an adsorption component for stabilizing the detection frame (1); The support assembly includes a connecting frame (32) and a second fixed frame (33). The inner wall of the second fixed frame (33) is rotatably connected to a roller (34) via a bearing seat. A limit rod (36) is installed at the top of the second fixed frame (33). The connecting frame (32) is installed at the bottom of the fixed plate (16). A rod groove (37) is opened at the bottom of the connecting frame (32). The limit rod (36) is inserted into the rod groove (37). A second spring (38) is fixedly connected between the top of the limit rod (36) and the top of the inner wall of the rod groove (37). A rubber pad (35) is installed at the top of the second fixed frame (33). A damper (39) is fixedly connected between the top of the inner wall of the connecting frame (32) and the top of the second fixed frame (33). The fixing assembly includes an extrusion plate (20) and a screw (23). The outer wall of the limiting post (19) is provided with a fixing groove (25). The extrusion plate (20) is inserted into the fixing groove (25). A slider (21) is installed at the bottom of the extrusion plate (20). A moving groove (22) is provided at the top of the fixing plate (16). The slider (21) is slidably connected to the moving groove (22). One end of the screw (23) is rotatably connected to the inner wall of the moving groove (22) through a bearing seat. The screw (23) moves through the moving groove (22). The screw (23) is rotatably connected to the fixing plate (16) through a bearing. A knob (24) is installed at one end of the screw (23). The slider (21) is threaded onto the outer wall of the screw (23). The adsorption assembly includes a support frame (31), which is installed at the bottom of the detection frame (1). An adsorption chamber (40) is opened at the bottom of the support frame (31). A piston plate (43) is slidably connected to the inner wall of the adsorption chamber (40). A connecting plate (44) is installed at the top of the piston plate (43). A screw three (41) is rotatably connected to the top of the connecting plate (44) through a bearing seat. The screw three (41) is threadedly connected to a threaded hole opened at the bottom of the support frame (31). A knob three (42) is installed at the top of the screw three (41).

2. The machine vision-based online quartz tube wall thickness detection device according to claim 1, characterized in that, Both the first rotating shaft (3) and the second rotating shaft (5) penetrate the back of the detection frame (1). One end of the first rotating shaft (3) is equipped with a first synchronous wheel (4), and one end of the second rotating shaft (5) is equipped with a second synchronous wheel (7). The outer walls of the first synchronous wheel (4) and the second synchronous wheel (7) are fitted with a synchronous belt (6).

3. The machine vision-based online quartz tube wall thickness detection device according to claim 1, characterized in that, A support roller (10) is provided between the first drive roller (8) and the second drive roller (9). The support roller (10) is rotatably connected to the inner wall of the detection frame (1) through a bearing seat. A knob (14) is installed at the top of the first screw (13).

4. The machine vision-based online quartz tube wall thickness detection device according to claim 1, characterized in that, The inner wall of the fixing groove (25) is equipped with an anti-slip pad (26), and the anti-slip pad (26) is in close contact with one end of the extrusion plate (20).

5. The machine vision-based online quartz tube wall thickness detection device according to claim 1, characterized in that, The outer wall of the fixed frame (12) is equipped with a limiting slide plate (28), and the inner wall of the detection frame (1) is provided with a limiting groove (29). The limiting slide plate (28) and the limiting groove (29) are slidably connected.

6. The machine vision-based online quartz tube wall thickness detection device according to claim 1, characterized in that, The bottom of the support frame (31) is equipped with a support pad (45), which is made of PVC soft rubber.

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