Crystallizer copper pipe outer diameter detection device

Abstract

The invention relates to the technical field of quality detection in metal processing equipment, in particular to a crystallizer copper pipe outer diameter detection device which comprises a supporting rod, a linkage rod, a bearing rod, a detection mechanism, a height adjusting mechanism and a stabilizing mechanism. Through the arrangement of the detection mechanism, a micro laser range finder and an image processing module which are integrated in the detection head are used for detecting the copper pipe, so that when the copper pipe enters a detection area, a sliding block can be in threaded linkage with a threaded rod, and then the detection head is driven to move along a guide rail; the detection head emits a laser beam to irradiate the outer surface of the copper pipe, the outer diameter of the copper pipe is calculated according to the return time of reflected light, and the image processing module processes collected data, extracts a characteristic value and compares the characteristic value with a preset standard to judge whether the copper pipe is qualified or not.

Description

Technical Field

[0001] The present application relates to the technical field of quality inspection in metal processing equipment, and particularly to an outer diameter detection device for a crystallizer copper tube. Background Art

[0002] In the metallurgical industry, continuous casting is an important production link. Among them, the crystallizer is one of the key components, and its performance directly affects the quality of the cast billet. In order to ensure product quality, it is necessary to strictly detect the outer diameter size of the crystallizer copper tube. Traditional detection methods mostly rely on manual measurement, which not only has low efficiency but is also easily affected by human factors, resulting in inaccurate detection results. In recent years, with the development of automation technology and sensor technology, some automatic detection systems based on optics and ultrasonic waves have begun to be applied in actual production. The introduction of these systems has significantly improved the detection accuracy and work efficiency.

[0003] At present, the specific solutions of the existing technologies are as follows: Manual measurement method: Manual measurement is carried out through tools such as calipers or vernier calipers. This method is simple and easy to implement, but has problems of low efficiency and large errors; Optical detection method: A laser rangefinder or other optical sensors are used to measure the outer diameter of the copper tube through beam reflection. This method has high precision and fast speed, but may be interfered in a complex environment and has a high cost; Ultrasonic detection method: Ultrasonic pulses are emitted and echo signals are received to calculate the distance, thereby determining the outer diameter of the copper tube. This method has strong anti-interference ability and is suitable for harsh environments, but has relatively low resolution and has certain requirements for the surface state.

[0004] In the related technologies, although the manual measurement method is simple, due to relying on the experience and technical level of the operator, it is easy to generate large random errors and cannot achieve online real-time monitoring; Although the optical detection method has high precision, it has strict requirements for environmental conditions. Factors such as changes in light intensity and dust pollution will affect the measurement results. In addition, the high cost also limits its wide application; Although the ultrasonic detection method has certain anti-interference ability, its resolution is limited, it is difficult to accurately capture subtle changes, and has high requirements for the surface of the measured object and is not suitable for the detection of all types of copper tubes. Therefore, there is an urgent need for an outer diameter detection device for a crystallizer copper tube to solve this problem. Summary of the Invention

[0005] In order to solve the problem that the current detection device cannot be applied to the continuous casting process in the metallurgical industry to perform real-time and accurate detection on the outer diameter size of the crystallizer copper tube, the present application provides an outer diameter detection device for a crystallizer copper tube.

[0006] An outer diameter detection device for a crystallizer copper tube provided by the present application adopts the following technical solution: An outer diameter detection device for a crystallizer copper tube, comprising: Support rod, a cavity is provided at the top of the support rod, a linkage rod is slidably connected in the top cavity of the support rod, a cavity is provided at the top of the linkage rod, and a support rod is slidably connected in the top cavity of the linkage rod; Detection mechanism, which is used to detect the outer diameter of the crystallizer copper tube, and the detection mechanism is arranged on the support rod. The detection mechanism includes a docking sleeve, a guide rail, a guide groove, a threaded rod, a slider and a detection head. The docking sleeve is sleeved on the support rod, the guide rail is fixed on the side wall of the docking sleeve, the guide groove is concavely arranged on one side of the guide rail, the threaded rod is rotatably connected to the center of the guide groove, the slider is slidably clamped in the guide groove, and a threaded hole is penetrated through the slider, and the slider is in threaded cooperation with the threaded rod through the threaded hole, and the detection head is arranged on the slider; Height adjustment mechanism, which is used to adjust the overall height of the detection mechanism, and the height adjustment mechanism is arranged on the support rod; Stabilizing mechanism, the stabilizing mechanism is used to increase the overall stability of the support rod, and the stabilizing mechanism is arranged at the bottom end of the support rod.

[0007] By adopting the above technical solution, with the setting of the detection mechanism, the copper tube is detected by using the micro laser rangefinder and image processing module integrated in the detection head. When the copper tube enters the detection area, the slider can be in threaded linkage with the threaded rod, and then drive the detection head to move along the guide rail. The detection head emits a laser beam to irradiate the outer surface of the copper tube, calculates the outer diameter of the copper tube through the return time of the reflected light, processes the collected data through the image processing module, extracts the characteristic values and compares them with the preset standards to judge whether it is qualified. The main control unit generates corresponding instructions according to the processing results to drive the slider to continue to move or stop. And if the detection result exceeds the set range, the main control unit will trigger an alarm signal to remind the staff to deal with it in time, which is simple and efficient; With the setting of the height adjustment mechanism, before the device is used, the overall height of the support rod, linkage rod and support rod can be quickly adjusted, and then the overall detection mechanism can be quickly adjusted to an appropriate position to facilitate the detection operation of the copper tube; With the setting of the stabilizing mechanism, the overall stability of the device is ensured, the situation of detection failure caused by the device tipping over during detection is avoided, and at the same time, the protection effect on the detection mechanism is realized.

[0008] Optionally, the detection mechanism further includes a first adjusting gear, a second adjusting gear, and a micro servo motor. The first adjusting gear is coaxially fixed to one end of the threaded rod and is located on one side of the guide rail. The micro servo motor is fixed on the guide rail on the side close to the first adjusting gear. The second adjusting gear is coaxially fixed to the output shaft of the micro servo motor, and the second adjusting gear meshes with the first adjusting gear.

[0009] By adopting the above technical solution, the micro servo motor is used to drive the second adjusting gear to rotate, and then the second adjusting gear drives the first adjusting gear to engage and link, and synchronously drives the threaded rod to rotate.

[0010] Optionally, the cross sections of the guide groove and the slider are both trapezoidal structures, and the slider is made of stainless steel material.

[0011] By adopting the above technical solution, the trapezoidal cross section is used to limit the slider to prevent the slider from slipping off.

[0012] Optionally, the height adjusting mechanism includes a winding base, a winding roller, and an adjusting rope. The winding base is fixed to one end of the outer wall of the support rod close to the linkage rod. The winding roller is rotatably connected in the winding base. One end of the adjusting rope is wound around the winding roller, and the other end passes through the cavity at the top of the support rod, bypasses the bottom end of the linkage rod, and is fixed to the side wall of the linkage rod.

[0013] By adopting the above technical solution, the winding and unwinding of the adjusting rope are carried out by the rotation of the winding roller, so that the linkage rod can be linked synchronously, and the height of the whole detection mechanism can be adjusted quickly.

[0014] Optionally, the height adjusting mechanism further includes a first guide wheel and a second guide wheel. The first guide wheel is rotatably connected to the side wall of the support rod close to one end of the linkage rod. The second guide wheel is rotatably connected to one end of the linkage rod located inside the support rod, and the adjusting rope is in contact with the first guide wheel and the second guide wheel respectively.

[0015] By adopting the above technical solution, the guide wheels are used to guide the adjusting rope and reduce wear, avoiding damage to the adjusting rope.

[0016] Optionally, the height adjusting mechanism further includes a transmission rod, a driven winding gear, and a driving winding gear. The transmission rod is rotatably connected in the winding base. The driven winding gear is coaxially fixed to the winding roller. The driving winding gear is coaxially fixed to the transmission rod, and the driving winding gear meshes with the driven winding gear.

[0017] By adopting the above technical solution, the driving rod is used to drive the active winding gear to rotate, so that the driven winding gear can be engaged and linked, and then the winding roller is driven to rotate by the driven winding gear.

[0018] Optionally, the height adjustment mechanism further includes a ratchet wheel, a pawl and a reset member. The ratchet wheel is coaxially fixed on the driving rod and is located on one side of the outer wall of the winding seat. The pawl is rotatably connected to the outer wall of the winding seat on the side close to the ratchet wheel, and one end of the pawl slides against the edge of the ratchet wheel. One end of the reset member is fixed on the winding seat, and the other end abuts against the pawl.

[0019] By adopting the above technical solution, the elastic force of the reset member is used to push the pawl, so that one end of the pawl can always abut against the ratchet wheel, and at the same time, the ratchet wheel is limited by the pawl to prevent it from reversing.

[0020] Optionally, the stability mechanism includes a sliding cylinder, a stabilizing rod and a linkage rod. The sliding cylinder is slidably sleeved on the support rod. One end of the stabilizing rod is rotatably connected to the sliding cylinder. One end of the linkage rod is rotatably connected to the bottom of the side wall of the support rod, and the other end is rotatably connected to the stabilizing rod.

[0021] By adopting the above technical solution, the sliding of the sliding cylinder is used to drive the overall linkage of the stabilizing rod and the linkage rod, so that the overall stabilizing rod and the linkage rod can be quickly deployed and retracted.

[0022] Optionally, a display screen is fixed on the side wall of the support rod. The inside of the display screen is integrated with a control system, and the control system includes a main control unit, a data acquisition module and a communication interface. The detection head is internally integrated with a micro laser rangefinder and an image processing module. The display screen is electrically connected to the detection head.

[0023] By adopting the above technical solution, the display screen is used to intuitively display the detection result.

[0024] Optionally, multiple groups of the detection mechanisms are arranged on the supporting rod, and the docking sleeve is detachably connected to the supporting rod by screws.

[0025] By adopting the above technical solution, by arranging multiple groups of detection mechanisms, the device can simultaneously perform detection operations on multiple copper tubes.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. By setting up the detection mechanism, the micro laser rangefinder and image processing module integrated inside the detection head are used to detect the copper tube. When the copper tube enters the detection area, the slider can be threadedly linked with the threaded rod, thereby driving the detection head to move along the guide rail. The detection head emits a laser beam to irradiate the outer surface of the copper tube, calculates the outer diameter of the copper tube through the return time of the reflected light, processes the collected data through the image processing module, extracts the characteristic values and compares them with the preset standards to determine whether it is qualified. The main control unit generates corresponding instructions according to the processing results to drive the slider to continue moving or stop. And if the detection result exceeds the set range, the main control unit will trigger an alarm signal to remind the staff to handle it in time, which is simple and efficient; 2. By setting up the height adjustment mechanism, before the device is used, the overall height of the support rod, linkage rod and supporting rod can be quickly adjusted, and then the overall detection mechanism can be quickly adjusted to an appropriate position to facilitate the detection operation of the copper tube; 3. By setting up the stability mechanism, the overall stability of the device is ensured, avoiding the situation of detection failure caused by the device tipping over during detection, and at the same time achieving the protection effect on the detection mechanism. Description of the Drawings

[0027] Figure 1 It is a schematic diagram of the external structure of a crystallizer copper tube outer diameter detection device in this embodiment.

[0028] Figure 2 It is a partially enlarged schematic diagram of the support rod in this embodiment.

[0029] Figure 3 It is a schematic diagram of the detection mechanism structure in this embodiment.

[0030] Figure 4 It is a schematic diagram of the micro servo motor and its connection structure in this embodiment.

[0031] Figure 5 It is a schematic diagram of the height adjustment mechanism structure in this embodiment.

[0032] Figure 6 It is a schematic diagram of the ratchet and its overall connection structure in this embodiment.

[0033] Figure 7 It is a schematic diagram of the adjustment rope connection structure in this embodiment.

[0034] Figure 8 It is a schematic diagram of the second guide wheel and its connection structure in this embodiment; Figure 9 It is a schematic diagram of the stability mechanism structure in this embodiment.

[0035] Description of the Reference Numerals: 1. Support rod; 2. Link rod; 3. Supporting rod; 4. Detection mechanism; 41. Docking sleeve; 42. Guide rail; 43. Guide groove; 44. Threaded rod; 45. Slide block; 46. Detection head; 47. First adjusting gear; 48. Second adjusting gear; 49. Micro servo motor; 5. Height adjusting mechanism; 51. Winding seat; 52. Winding roller; 53. Adjusting rope; 54. First guide wheel; 55. Second guide wheel; 56. Transmission rod; 57. Driven winding gear; 58. Driving winding gear; 59. Ratchet; 510. Pawl; 511. Reset part; 6. Stabilizing mechanism; 61. Sliding cylinder; 62. Stabilizing rod; 63. Link rod; 7. Display screen. Detailed implementation mode

[0036] The following is further described in detail with reference to the attached Figures 1-9 This application is further described in detail.

[0037] The embodiment of this application discloses a device for detecting the outer diameter of a crystallizer copper tube.

[0038] It should be noted that in the description of the present invention, it should be understood that the orientation or positional relationship indicated by the terms "center", "longitudinal", "transverse", "up", "down", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and 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 orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation to the present invention.

[0039] Refer to Figure 1 And Figure 2, A crystallizer copper tube outer diameter detection device, including a support rod 1, a linkage rod 2, a support rod 3, a detection mechanism 4, a height adjustment mechanism 5 and a stability mechanism 6. A cavity is provided at the top of the support rod 1. A linkage rod 2 is slidably connected in the top cavity of the support rod 1. A cavity is provided at the top of the linkage rod 2. A support rod 3 is slidably connected in the top cavity of the linkage rod 2. The detection mechanism 4 is arranged on the support rod 3. The height adjustment mechanism 5 is arranged on the support rod 1. The stability mechanism 6 is arranged at the bottom end of the support rod 1. By setting the detection mechanism 4, the copper tube is detected by using the micro laser rangefinder and the image processing module integrated inside the detection head 46. When the copper tube enters the detection area, the slider 45 can be in threaded linkage with the threaded rod 44, thereby driving the detection head 46 to move along the guide rail 42. The detection head 46 emits a laser beam to irradiate the outer surface of the copper tube. The outer diameter of the copper tube is calculated by the time of the reflected light. The image processing module processes the collected data, extracts the characteristic values and compares them with the preset standards to determine whether it is qualified. The main control unit generates corresponding instructions according to the processing results to drive the slider 45 to continue moving or stop. And if the detection result exceeds the set range, the main control unit will trigger an alarm signal to remind the staff to deal with it in time, which is simple and efficient.

[0040] Refer to Figure 3 and Figure 4 , Specifically, in the embodiment of the present application, regarding the detection mechanism 4, the detection mechanism 4 includes a docking sleeve 41, a guide rail 42, a guide groove 43, a threaded rod 44, a slider 45, a detection head 46, a first adjustment gear 47, a second adjustment gear 48 and a micro servo motor 49. The micro servo motor 49 drives the second adjustment gear 48 to rotate, and then drives the first adjustment gear 47 to engage and link through the second adjustment gear 48, and synchronously drives the threaded rod 44 to rotate, so that the slider 45 can be in threaded linkage with the threaded rod 44, thereby driving the detection head 46 to move along the guide rail 42, and the copper tube is detected through the detection head 46.

[0041] Specifically, the docking sleeve 41 is sleeved on the support rod 3. The guide rail 42 is fixed on the side wall of the docking sleeve 41. The guide groove 43 is concavely arranged on one side of the guide rail 42. The threaded rod 44 is rotatably connected to the center of the guide groove 43. The slider 45 is slidably clamped in the guide groove 43, and a threaded hole is penetrated through the slider 45, and the slider 45 is in threaded cooperation with the threaded rod 44 through the threaded hole. The detection head 46 is arranged on the slider 45. The first adjustment gear 47 is coaxially fixed at one end of the threaded rod 44 and is located on one side of the guide rail 42. The micro servo motor 49 is fixed on the guide rail 42 on the side close to the first adjustment gear 47. The second adjustment gear 48 is coaxially fixed on the output shaft of the micro servo motor 49, and the second adjustment gear 48 meshes with the first adjustment gear 47.

[0042] Refer to Figure 5 and Figure 6, specifically, in the embodiments of the present application, regarding the height adjustment mechanism 5, the height adjustment mechanism 5 includes a winding base 51, a winding roller 52, an adjustment rope 53, a first guide wheel 54, a second guide wheel 55, a transmission rod 56, a driven winding gear 57, and a driving winding gear 58. By setting the height adjustment mechanism 5, before the device is used, the overall height of the support rod 1, the linkage rod 2, and the supporting rod 3 can be quickly adjusted, and then the overall detection mechanism 4 can be quickly adjusted to an appropriate position, so as to facilitate the detection operation of the copper tube.

[0043] Refer to Figure 7 and Figure 8 , the winding base 51 is fixed to one end of the outer wall of the support rod 1 close to the linkage rod 2. The winding roller 52 is rotatably connected to the inside of the winding base 51. One end of the adjustment rope 53 is wound around the winding roller 52, and the other end passes through the cavity at the top of the support rod 1, bypasses the bottom end of the linkage rod 2, and is fixed to the side wall of the linkage rod 2. The first guide wheel 54 is rotatably connected to the side wall of one end of the support rod 1 close to the linkage rod 2. The second guide wheel 55 is rotatably connected to one end of the linkage rod 2 located inside the support rod 1, and the adjustment rope 53 is in contact with the first guide wheel 54 and the second guide wheel 55 respectively. The transmission rod 56 is rotatably connected to the inside of the winding base 51. The driven winding gear 57 is coaxially fixed to the winding roller 52, and the driving winding gear 58 is coaxially fixed to the transmission rod 56, and the driving winding gear 58 meshes with the driven winding gear 57.

[0044] In the embodiments of the present application regarding the height adjustment mechanism 5, the height adjustment mechanism 5 further includes a ratchet wheel 59, a pawl 510, and a reset member 511. By using the elastic force of the reset member 511 to push the pawl 510, one end of the pawl 510 can always be in contact with the ratchet wheel 59, and at the same time, the ratchet wheel 59 is limited by the pawl 510 to prevent it from reversing.

[0045] In the embodiments of the present application, the ratchet wheel 59 is coaxially fixed to the transmission rod 56 and is located on one side of the outer wall of the winding base 51. The pawl 510 is rotatably connected to the outer wall of the winding base 51 close to the ratchet wheel 59, and one end of the pawl 510 slides in contact with the edge of the ratchet wheel 59. One end of the reset member 511 is fixed to the winding base 51, and the other end is in contact with the pawl 510.

[0046] Refer to Figure 9 , specifically, in the embodiments of the present application, regarding the stability mechanism 6, the stability mechanism 6 includes a sliding cylinder 61, a stabilizing rod 62, and a linkage rod 63. By setting the stability mechanism 6, the overall stability of the device is ensured, the situation of detection failure caused by the device tipping over during detection is avoided, and at the same time, the protection effect on the detection mechanism 4 is also achieved.

[0047] In the embodiment of the present application, the sliding cylinder 61 is slidably mounted on the support rod 1, one end of the stabilizing rod 62 is rotatably connected to the sliding cylinder 61, one end of the linkage rod 63 is rotatably connected to the bottom of the side wall of the support rod 1, and the other end is rotatably connected to the stabilizing rod 62.

[0048] In the embodiment of the present application, the cross-sections of the guide groove 43 and the slider 45 are both trapezoidal structures, and the slider 45 is made of stainless steel material. The cross-section of the trapezoidal structure is used to limit the slider 45 to prevent the slider 45 from slipping.

[0049] In the embodiment of the present application, a display screen 7 is fixed on the side wall of the support rod 1, a control system is integrated inside the display screen 7, and the control system includes a main control unit, a data acquisition module and a communication interface, a micro laser rangefinder and an image processing module are integrated inside the detection head 46, the display screen 7 is electrically connected to the detection head 46, and the detection result is intuitively displayed using the display screen 7.

[0050] There are multiple detection mechanisms 4 on the support rod 3, and the docking sleeve 41 is detachably connected to the support rod 3 by screws. By using multiple detection mechanisms 4, the device can perform detection operations on multiple copper pipes at the same time.

[0051] The implementation principle of a device for detecting the outer diameter of a copper tube of a crystallizer according to an embodiment of the present application is as follows: first, the device is placed in an appropriate position as a whole, and then the sliding cylinder 61 is slid to make the stabilizing rod 62 and the linkage rod 63 to be linked and unfolded as a whole to maintain the overall stability of the device, and then the transmission rod 56 is rotated to drive the active winding gear 58 to rotate, so that the driven winding gear 57 can be meshed and linked, and then the winding roller 52 is driven to rotate by the driven winding gear 57, and the rotation of the winding roller 52 is used to reel in and unreel the adjusting rope 53, so that the linkage rod 2 is linked synchronously, and after the detection mechanism 4 is quickly adjusted to an appropriate height as a whole, the second adjusting gear 48 is driven to rotate by the micro servo motor 49, and then the adjusting rope 53 is reeled in and unreeled by the rotating winding roller 52. The first adjusting gear 47 is driven to mesh and rotate through the second adjusting gear 48, and the threaded rod 44 is driven to rotate synchronously. At this time, the slider 45 is threadedly linked with the threaded rod 44, thereby driving the detection head 46 to move along the guide rail 42, and the detection head 46 emits a laser beam to irradiate the outer surface of the copper tube, and the outer diameter of the copper tube is calculated by the return time of the reflected light. The collected data is processed by the image processing module, and the characteristic values ​​are extracted and compared with the preset standards to determine whether it is qualified. The main control unit generates corresponding instructions according to the processing results to drive the slider 45 to continue moving or stop, and if the detection result exceeds the set range, the main control unit will trigger an alarm signal to remind the staff to deal with it in time.

[0052] The above are all preferred embodiments of the present application, and do not limit the protection scope of the present application. Therefore, all equivalent changes made according to the structure, shape, and principle of the present application shall be covered within the protection scope of the present application.

Claims

1. A device for detecting the outer diameter of a crystallizer copper tube, characterized in that: include: A support rod (1), wherein a cavity is provided at the top of the support rod (1), a linkage rod (2) is slidably connected in the cavity at the top of the support rod (1), a cavity is provided at the top of the linkage rod (2), and a supporting rod (3) is slidably connected in the cavity at the top of the linkage rod (2); A detection mechanism (4) for detecting the outer diameter of the copper tube of the crystallizer, and the detection mechanism (4) is arranged on the supporting rod (3), the detection mechanism (4) comprises a docking sleeve (41), a guide rail (42), a guide groove (43), a threaded rod (44), a slider (45) and a detection head (46), the docking sleeve (41) is sleeved on the supporting rod (3), the guide rail (42) is fixed on the side wall of the docking sleeve (41), the guide groove (43) is concavely arranged on one side of the guide rail (42), the threaded rod (44) is rotatably connected to the center of the guide groove (43), the slider (45) is slidably engaged in the guide groove (43), a screw hole is penetrated on the slider (45), and the slider (45) is threadedly engaged with the threaded rod (44) through the screw hole, and the detection head (46) is arranged on the slider (45); A height adjustment mechanism (5) used to adjust the overall height of the detection mechanism (4), and the height adjustment mechanism (5) is arranged on the support rod (1); A stabilizing mechanism (6), the stabilizing mechanism (6) being used to increase the overall stability of the support rod (1), and the stabilizing mechanism (6) being arranged at the bottom end of the support rod (1).

2. A crystallizer copper tube outer diameter detection device according to claim 1, characterized in that: The detection mechanism (4) further comprises a first adjusting gear (47), a second adjusting gear (48) and a micro servo motor (49); the first adjusting gear (47) is coaxially fixed to one end of the threaded rod (44) and is located on one side of the guide rail (42); the micro servo motor (49) is fixed on one side of the guide rail (42) close to the first adjusting gear (47); the second adjusting gear (48) is coaxially fixed to the output shaft of the micro servo motor (49), and the second adjusting gear (48) and the first adjusting gear (47) are meshed with each other.

3. A crystallizer copper tube outer diameter detection device according to claim 1, characterized in that: The cross-sections of the guide groove (43) and the sliding block (45) are both trapezoidal in structure, and the sliding block (45) is made of stainless steel.

4. A device for detecting outer diameter of a crystallizer copper tube according to claim 1, characterized in that: The height adjustment mechanism (5) comprises a winding seat (51), a winding roller (52) and an adjustment rope (53); the winding seat (51) is fixed on the outer wall of the support rod (1) close to one end of the linkage rod (2); the winding roller (52) is rotatably connected to the winding seat (51); one end of the adjustment rope (53) is wound around the winding roller (52); the other end passes through the top cavity of the support rod (1), bypasses the bottom end of the linkage rod (2), and is fixed to the side wall of the linkage rod (2).

5. A crystallizer copper tube outer diameter detection device according to claim 4, characterized in that: The height adjustment mechanism (5) further comprises a first guide wheel (54) and a second guide wheel (55), wherein the first guide wheel (54) is rotatably connected to a side wall of one end of the support rod (1) close to the linkage rod (2), and the second guide wheel (55) is rotatably connected to an end of the linkage rod (2) located inside the support rod (1), and portions of the adjustment rope (53) are respectively in contact with the first guide wheel (54) and the second guide wheel (55).

6. A crystallizer copper tube outer diameter detection device according to claim 4, characterized in that: The height adjustment mechanism (5) further comprises a transmission rod (56), a driven winding gear (57) and an active winding gear (58); the transmission rod (56) is rotatably connected to the winding seat (51); the driven winding gear (57) is coaxially fixed to the winding roller (52); the active winding gear (58) is coaxially fixed to the transmission rod (56); and the active winding gear (58) is meshed with the driven winding gear (57).

7. A device for detecting outer diameter of a mold copper tube according to claim 6, characterized in that: The height adjustment mechanism (5) further comprises a ratchet (59), a pawl (510) and a reset member (511); the ratchet (59) is coaxially fixed to the transmission rod (56) and is located on one side of the outer wall of the winding seat (51); the pawl (510) is rotatably connected to a side of the outer wall of the winding seat (51) close to the ratchet (59), and one end of the pawl (510) is slidably abutted against an edge of the ratchet (59); one end of the reset member (511) is fixed to the winding seat (51) and the other end abuts against the pawl (510).

8. The device for detecting outer diameter of a crystallizer copper tube according to claim 1, characterized in that: The stabilizing mechanism (6) comprises a sliding cylinder (61), a stabilizing rod (62) and a linkage rod (63); the sliding cylinder (61) is slidably sleeved on the support rod (1); one end of the stabilizing rod (62) is rotatably connected to the sliding cylinder (61); one end of the linkage rod (63) is rotatably connected to the bottom of the side wall of the support rod (1); and the other end is rotatably connected to the stabilizing rod (62).

9. The device for detecting outer diameter of a mold copper tube according to claim 1, characterized in that: A display screen (7) is fixed to the side wall of the support rod (1); a control system is integrated inside the display screen (7); the control system comprises a main control unit, a data acquisition module and a communication interface; a micro laser rangefinder and an image processing module are integrated inside the detection head (46); and the display screen (7) is electrically connected to the detection head (46).

10. The device for detecting outer diameter of a mold copper tube according to claim 1, characterized in that: The detection mechanism (4) is provided in multiple groups on the support rod (3), and the docking sleeve (41) is detachably connected to the support rod (3) via screws.

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