CN217424294U - Detection device for inner wall coating of tubular part - Google Patents

Detection device for inner wall coating of tubular part Download PDF

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Publication number
CN217424294U
CN217424294U CN202221256611.9U CN202221256611U CN217424294U CN 217424294 U CN217424294 U CN 217424294U CN 202221256611 U CN202221256611 U CN 202221256611U CN 217424294 U CN217424294 U CN 217424294U
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probe
seat
fixing plate
hole
coating
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CN202221256611.9U
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Chinese (zh)
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胡勇
林华勇
刘建洋
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Chengdu Kangtuo Xingye Technology Co ltd
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Chengdu Kangtuo Xingye Technology Co ltd
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Abstract

The utility model discloses a tubulose part inner wall coating detection device, including terahertz probe, part fixing device and probe drive arrangement now, part fixing device is used for fixing the tubulose part, and probe drive arrangement includes first mount pad, rotary driving motor, runing rest, linear driving motor and probe seat, and rotary driving motor installs on first mount pad, and rotary driving motor drives runing rest and carries out rotary motion, and linear driving motor installs on the runing rest, and linear driving motor drives probe seat carries out linear motion, and terahertz probe installs on the probe seat now. The utility model discloses can realize the accurate control to axial displacement and rotary motion of terahertz probe in the central through hole of tubulose part, have that the detection precision is high, the detection site is complete, detection speed is fast, detection efficiency is high, be convenient for automated control and the advantage that detects in succession, improved the quality verification precision and the efficiency of tubulose part, be favorable to the quality assurance of tubulose part.

Description

Detection device for inner wall coating of tubular part
Technical Field
The utility model relates to a detection device of tubular part especially relates to a detection device of tubular part inner wall coating.
Background
Tubular parts are widely applied in modern industry, for tubular parts used in specific environments, the conventional application mode is to spray coatings for corrosion prevention, wear resistance and other functions on the inner and outer surfaces of the parts, and parameters such as the coating thickness and the like have important influence on the quality of the parts.
As the name implies, coating thickness is a measure of the amount of coating material applied to the surface of a part, and the difference in thickness between the time of application and the time at which the coating material is completely dry is large because the coating material changes from a liquid to a solid when cured or dried. Furthermore, the coating thickness may vary due to the type of surface covered by the coating, and even with the same applicator or brush, the coating thickness may show a large difference between the wear surface and the surface of the absorbent material. For the above reasons, thickness detection of the part coating becomes critical.
At present, the thickness of a coating is generally detected by using electromagnetic detection, for example, a terahertz spectrometer is used for detecting the thickness of the coating, the basic principle is that a terahertz probe is close to the coating, terahertz electromagnetic waves generated by the terahertz probe are irradiated on the coating and then reflected back, the terahertz probe transmits received reflection signals to the terahertz spectrometer, and the terahertz spectrometer calculates the thickness of the coating according to the received data. Here, Terahertz (THz) electromagnetic waves refer to electromagnetic waves having a frequency between infrared and microwave.
For the coating thickness of the outer surface, the traditional detection mode is that the terahertz spectrometer is adopted to detect in a manual mode, the manual mode is low in efficiency, accurate and comprehensive detection is difficult to be carried out on the thickness of each part of the coating, more importantly, the manual detection is difficult to detect the inner wall coating of the tubular part, so that the detection of the inner wall coating of the tubular part is very difficult, or the detection is inaccurate and incomplete even if the detection is difficult, the quality verification of the tubular part is directly influenced, and the quality guarantee of the tubular part in the fields of aviation and the like is particularly not facilitated.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a can detect tubulose part inner wall coating detection device of tubulose part inner wall coating parameter accurately, comprehensively, high-efficiently in order to solve above-mentioned problem.
The utility model discloses a following technical scheme realizes above-mentioned purpose:
a device for detecting the coating on the inner wall of a tubular part comprises a terahertz probe, a part fixing device and a probe driving device, the part fixing device is used for fixing tubular parts, the probe driving device comprises a first mounting seat, a rotary driving motor, a rotary bracket, a linear driving motor and a probe seat, the rotary driving motor is arranged on the first mounting seat, a rotating shaft of the rotary driving motor is connected with the rotary bracket and drives the rotary bracket to rotate, the linear driving motor is arranged on the rotary bracket, a rotating shaft of the linear driving motor is connected with the probe seat and drives the probe seat to do linear motion, the terahertz probe is installed on the probe seat, and the probe seat can enter the central through hole of the tubular part when the tubular part is installed on the part fixing device.
Preferably, in order to achieve a more reliable driving effect on the rotational motion and the linear motion of the terahertz probe, the probe driving device further includes a driving wheel, a synchronous belt, a guide rod, a second mounting seat, a rotary disk, a bearing, a driven wheel bracket and a driven wheel, the driving wheel is mounted on a rotating shaft of the linear driving motor, the rotary disk is mounted on the second mounting seat through the bearing, two ends of the guide rod are respectively connected with the rotary bracket and the rotary disk, the driven wheel is mounted on the rotary disk through the driven wheel bracket, two ends of the synchronous belt are respectively mounted on the driving wheel and the driven wheel, a guide through hole is formed in the probe seat, the guide rod penetrates through the guide through hole, and the probe seat is connected with the synchronous belt and is located between the driving wheel and the driven wheel, when the tubular part is installed on the part fixing device, the guide rod and the synchronous belt penetrate through the central through hole of the tubular part.
Preferably, in order to realize automatic control, the device for detecting the coating on the inner wall of the tubular part further comprises a controller and a terahertz spectrometer, wherein the control input end of the rotary driving motor and the control input end of the linear driving motor are respectively and correspondingly connected with the control output end of the controller, and the signal output end of the terahertz probe is connected with the signal input end of the terahertz spectrometer.
Preferably, in order to realize more accurate and more comprehensive automatic control, the device for detecting the coating on the inner wall of the tubular part further comprises a zero return sensor, a first limit sensor and a second limit sensor, the zero returning sensor and the first limit sensor are respectively arranged on one side of the rotary bracket close to the probe seat and can be contacted with the probe seat when the probe seat moves to the corresponding position, the second limit sensor is arranged on the second mounting seat through a sensor mounting rod, is positioned between the second mounting seat and the probe seat and can be contacted with the probe seat when the probe seat moves to a corresponding position, and the signal output end of the zero-returning sensor, the signal output end of the first limiting sensor and the signal output end of the second limiting sensor are respectively and correspondingly connected with the signal input end of the controller.
Preferably, in order to realize a tensioning function on the synchronous belt so as to improve transmission precision and avoid interference on the terahertz probe, the driven wheel is a tensioning wheel and is mounted on the driven wheel support through a tensioning shaft, the driven wheel is located on one side, away from the first mounting seat, of the rotating disc, a through hole is formed in the rotating disc, and the synchronous belt penetrates through the through hole.
Preferably, in order to achieve a more precise guiding function and to provide a more stable and reliable connection structure between the first mounting seat and the second mounting seat, the two guide rods are parallel to each other.
As preferred, in order to realize quick, stable locking fixed function and minimize the damage to tubulose part outer wall coating to tubulose part, part fixing device includes first fixing base, second fixing base and locking pull rod, be equipped with first fixed plate on the first fixing base, be equipped with first fixed plate through-hole on the first fixed plate, be equipped with the second fixed plate on the second fixing base, be equipped with second fixed plate through-hole on the second fixed plate, it is a plurality of the both ends of locking pull rod respectively with first fixed plate with the second fixed plate is connected, first fixed plate with space between the second fixed plate is used for the installation after tubulose part and installation the central through-hole of tubulose part with first fixed plate through-hole with second fixed plate through-hole link up each other and coaxial, first fixing base with the second fixing base is located between the first mount pad with the second mount pad and in proper order in same straight line direction And arranging, wherein the guide rod and the synchronous belt penetrate through the through hole of the first fixing plate and the through hole of the second fixing plate. According to the actual application requirement, the part fixing device can also adopt other structures, such as a mounting seat for locking and fixing the tubular part from the middle part of the tubular part, but the damage to the coating on the outer wall of the tubular part is reduced as much as possible, and a better choice is made for fixing from two ends; the second fixing plate of the first fixing plate can be provided with an annular groove corresponding to the port of the tubular part, so that the tubular part can be positioned more accurately.
Preferably, in order to enable the part fixing device to have higher stability and have a more stable and reliable fixing function for the tubular part, the number of the locking pull rods is four, the four locking pull rods are uniformly distributed on the peripheries of the through holes of the first fixing plate and the through holes of the second fixing plate, external threads are respectively arranged at two ends of each locking pull rod, and two ends of each locking pull rod are connected with corresponding locking nuts after respectively penetrating through corresponding through holes in the first fixing plate and corresponding through holes in the second fixing plate.
Preferably, in order to control the rotation speed of the terahertz probe more stably and reliably, the rotating shaft of the rotation driving motor is connected with the rotating bracket through a speed reducing mechanism. The speed reducing mechanism can be the simplest gear transmission structure, such as: a rotating shaft of the rotary driving motor is connected with the small-diameter gear, the large-diameter gear is installed on the rotary support, and the small-diameter gear is meshed with the large-diameter gear; in order to save space, the large-diameter gear can adopt a circular ring gear arranged on the surface of one side of the rotating support, and the central axial direction of the small-diameter gear is perpendicular to the plane of the large-diameter gear, so that the speed reduction transmission function can be realized. Meanwhile, the middle part of the rotating support is provided with a connecting shaft, and the connecting shaft is connected with the corresponding through hole on the first mounting seat through a rolling bearing, so that the rotating support can be positioned and mounted and can rotate freely.
Preferably, in order to control the motion of the terahertz probe more stably and reliably, the rotary drive motor and the linear drive motor are both servo motors.
The beneficial effects of the utility model reside in that:
the utility model discloses a through setting up part fixing device and probe drive arrangement, utilize part fixing device to lock the tubulose part fixedly, utilize probe drive arrangement installation terahertz probe and drive terahertz probe and carry out rotary motion and linear motion, thereby realize the accurate control to terahertz probe axial displacement and rotary motion in the central through-hole of tubulose part, realize under the prerequisite that the tubulose part that is detected is motionless to the relevant parameter such as coating thickness detection of tubulose part inner wall coating, have that detection precision is high, the detection position is complete, detection speed is fast, detection efficiency is high, be convenient for automated control and continuous detection's advantage, the quality verification precision and the efficiency of tubulose part have been improved, especially, be favorable to the quality assurance of the tubulose part in fields such as aviation; the device for detecting the coating on the inner wall of the tubular part adopts a split structure, is convenient to process, transport and assemble, and is suitable for popularization and application.
Drawings
FIG. 1 is a perspective view of a device for detecting a coating on an inner wall of a tubular part according to the present invention, in which the tubular part is also shown;
FIG. 2 is a perspective view of a part fixing device of the device for detecting a coating on an inner wall of a tubular part according to the present invention, in which the tubular part is also shown;
FIG. 3 is a perspective view of a probe driving device of the device for detecting a coating on an inner wall of a tubular part according to the present invention;
FIG. 4 is an enlarged view of "A" in a perspective view of a probe driving device of the apparatus for inspecting an inner wall coating of a tubular part according to the present invention;
fig. 5 is an enlarged view of "B" in a perspective view of a probe driving device of the apparatus for inspecting an inner wall coating of a tubular part according to the present invention.
Detailed Description
The present invention will be further explained with reference to the accompanying drawings:
as shown in fig. 1-5, the device for detecting the coating on the inner wall of the tubular part of the present invention comprises a terahertz probe 39, a part fixing device 2 and a probe driving device 3, wherein the part fixing device 2 is used for fixing the tubular part 1, the probe driving device 3 comprises a first mounting seat 31, a rotary driving motor 32, a rotary bracket 33, a linear driving motor 34 and a probe holder 38, the rotary driving motor 32 is mounted on the first mounting seat 31, a rotating shaft of the rotary driving motor 32 is connected with the rotary bracket 33 (the specific connection structure cannot be considered in the figure, for example, the structure connected through a speed reducing mechanism in the following preferred structure) and drives the rotary bracket 33 to perform a rotary motion, the linear driving motor 34 is mounted on the rotary bracket 33, the rotating shaft of the linear driving motor 34 is connected with the probe holder 38 (the connection structure is determined according to actual requirements, for example, a synchronous belt transmission structure in the following preferred structure is adopted) and drives the probe holder 38 to perform a linear motion, the terahertz probe 39 is installed on the probe seat 38, and when the tubular part 1 is installed on the part fixing device 2, the probe seat 38 can enter the central through hole of the tubular part 1, that is, the part fixing device 2 and the probe driving device 3 are required to be close to each other and meet a relative position relationship so as to realize that the probe seat 38 can perform linear motion and rotary motion in the central through hole of the tubular part 1.
As shown in fig. 1-5, the present invention further discloses the following various more optimized specific structures, and the above structures and one or more of the following structures can be overlapped and combined to form a more optimized technical solution according to actual needs.
In order to realize more reliable driving effect on the rotational motion and the linear motion of the terahertz probe 39, the probe driving device 3 further includes a driving wheel (not visible in the figure), a synchronous belt 37, a guide rod 40, a second mounting seat 45, a rotating disk 46, a bearing 44, a driven wheel bracket 48 and a driven wheel 47, the driving wheel is mounted on the rotating shaft of the linear driving motor 34, the rotating disk 46 is mounted on the second mounting seat 45 through the bearing 44, and the specific mounting structure is as follows: the second mounting seat 45 is provided with a mounting through hole, an inner ring of a bearing 44 (preferably a rolling bearing) is sleeved outside the circumference of the rotating disc 46, an outer ring of the bearing 44 is sleeved in the mounting through hole of the second mounting seat 45, two ends of the guide rod 40 are respectively connected with the rotating bracket 33 and the rotating disc 46, the driven wheel 47 is mounted on the rotating disc 46 through the driven wheel bracket 48, two ends of the synchronous belt 37 are respectively mounted on the driving wheel and the driven wheel 47, the probe seat 38 is provided with a guide through hole, the guide rod 40 penetrates through the guide through hole, the probe seat 38 is connected with the synchronous belt 37 and is positioned between the driving wheel and the driven wheel 47, and the guide rod 40 and the synchronous belt 37 both penetrate through a central through hole of the tubular part 1 when the tubular part 1 is mounted on the part fixing device 2.
In order to realize automatic control, the device for detecting the coating on the inner wall of the tubular part further comprises a controller (not shown in the figure) and a terahertz spectrometer (not shown in the figure), wherein the control input end of the rotary driving motor 32 and the control input end of the linear driving motor 34 are respectively and correspondingly connected with the control output end of the controller, and the signal output end of the terahertz probe 39 is connected with the signal input end of the terahertz spectrometer.
In order to realize more accurate and more comprehensive automatic control, the tubular part inner wall coating detection device further comprises a zero return sensor 36, a first limit sensor 35 and a second limit sensor 41, wherein the zero return sensor 36 and the first limit sensor 35 are respectively installed on one side of the rotary support 33 close to the probe base 38 and can be in contact with the probe base 38 when the probe base 38 moves to a corresponding position, the second limit sensor 41 is installed on the second installation base 45 through a sensor installation rod 42, the second limit sensor 41 is located between the second installation base 45 and the probe base 38 and can be in contact with the probe base 38 when the probe base 38 moves to a corresponding position, and a signal output end of the zero return sensor 36, a signal output end of the first limit sensor 35 and a signal output end of the second limit sensor 41 are respectively in corresponding connection with a signal input end of the controller.
In order to realize a tensioning function for the synchronous belt 37 to improve the transmission precision and avoid interference on the terahertz probe 39, the driven wheel 47 is a tensioning wheel and is mounted on the driven wheel bracket 48 through a tensioning shaft, the driven wheel 47 is located on one side of the rotating disc 46 far away from the first mounting seat 31, a through hole is formed in the rotating disc 46, and the synchronous belt 37 penetrates through the through hole.
In order to achieve a more precise guiding function and a more stable and reliable connection structure between the first mounting seat 31 and the second mounting seat 45, the guide rods 40 are two parallel to each other.
In order to realize the fast and stable locking and fixing function for the tubular part 1 and minimize the damage to the outer wall coating of the tubular part 1, the part fixing device 2 comprises a first fixing seat 22, a second fixing seat 24 and a locking pull rod 23, the first fixing seat 22 is provided with a first fixing plate 21, the first fixing plate 21 is provided with a first fixing plate through hole (not visible in the figure), the second fixing seat 24 is provided with a second fixing plate 25, the second fixing plate 25 is provided with a second fixing plate through hole 26, two ends of the locking pull rod 23 are respectively connected with the first fixing plate 21 and the second fixing plate 25, the space between the first fixing plate 21 and the second fixing plate 25 is used for mounting the tubular part 1, the central through hole of the mounted tubular part 1 is mutually communicated and coaxial with the first fixing plate through hole and the second fixing plate through hole 26, the first fixing seat 22 and the second fixing seat 24 are positioned between the first mounting seat 31 and the second mounting seat 45 and are sequentially arranged in the same straight line direction, the guide bar 40 and the timing belt 37 pass through the first fixing plate through hole and the second fixing plate through hole 26. The surfaces of the first fixing plate 21 and the second fixing plate 25, which are in contact with the tubular part 1, are provided with non-metallic material interlayers to protect the coating on the surface of the tubular part 1.
In order to enable the part fixing device 2 to have higher stability and have more stable and reliable fixing function for the tubular part, the locking pull rods 23 are four and are uniformly distributed on the peripheries of the first fixing plate through holes and the second fixing plate through holes 26, external threads are respectively arranged at two ends of the locking pull rods 23, and two ends of the locking pull rods 23 are respectively connected with the corresponding locking nuts 27 after passing through the corresponding through holes on the first fixing plate 21 and the corresponding through holes on the second fixing plate 25.
In order to control the rotation speed of the terahertz probe 39 more stably and reliably, the rotating shaft of the rotary drive motor 32 is connected to the rotating support through a speed reduction mechanism (not visible in the figure).
In order to control the movement of the terahertz probe 39 more stably and reliably, the rotary drive motor 32 and the linear drive motor 34 are both servo motors.
Also shown in fig. 3 and 5 is a bearing gland 43 disposed outside the bearing 44 for protecting the bearing 44 and preventing dust.
As shown in fig. 1-5, in use, the part fixing device 2 and the probe driving device 3 are both disposed on the same operation platform, the tubular part 1 (about 5 meters in length) to be detected is first mounted on the part fixing device 2, the guide bar 40 and the timing belt 37 are mounted on the first mounting seat 31, the guide bar 40 and the timing belt 37 are then passed through the tubular element 1, taking care not to touch the inner wall of the tubular element 1, the end of the timing belt 37 can be bound with the end of the guide bar 40, the hardness of the guide bar 40 is utilized to complete frictionless penetration of the central through hole of the tubular part 1, then the binding is released, the guide rod 40 and the synchronous belt 37 are respectively installed on the second installation seat 45, and finally the guide rod 40 and the tubular part 1 are adjusted and checked to be parallel to each other, and the connection line between the central position of the rotary bracket 33 and the central position of the rotary disc 46 is preferably coincident with the central line of the tubular part 1.
After the mounting is finished, detection can be carried out, each device is started, the controller controls the linear driving motor 34 to enable the probe seat 38 and the terahertz probe 39 to move towards the direction close to the first mounting seat 31 to achieve zero returning, when the probe seat 38 is in contact with the zero returning sensor 36, the linear driving motor 34 stops running and then rotates reversely, and the probe seat 38 and the terahertz probe 39 are driven to move towards the direction close to the second mounting seat 45; after the terahertz probe 39 moves to a position to be detected, the probe seat 38 and the terahertz probe 39 can be driven in two ways by the rotary driving motor 32 and the linear driving motor 34, wherein one way is that the terahertz probe rotates for a circle, then moves linearly for a certain distance, and then rotates for a circle, and so on until all the preset positions are detected, and the other way is that the terahertz probe rotates and moves linearly at the same time, namely moves spirally until all the preset positions are detected; the terahertz probe 39 transmits the received reflection signal to the terahertz spectrometer, and the terahertz spectrometer calculates the thickness of the coating at the corresponding position according to the received data. According to actual needs, other driving modes can be adopted for the probe seat 38 and the terahertz probe 39, and automatic control can be realized in any mode. When the probe holder 38 moves to the extreme positions at both ends respectively, it will contact the first limit sensor 35 or the second limit sensor 41, and the controller will immediately control the rotation driving motor 32 and the linear driving motor 34 to stop running.
The above-mentioned embodiment is only the preferred embodiment of the present invention, and is not to the limitation of the technical solution of the present invention, as long as the technical solution can be realized on the basis of the above-mentioned embodiment without creative work, all should be regarded as falling into the protection scope of the right of the present invention.

Claims (10)

1. The utility model provides a tubulose part inner wall coating detection device, includes terahertz probe, its characterized in that: still include part fixing device and probe drive arrangement, part fixing device is used for fixing the tubulose part, probe drive arrangement includes first mount pad, rotary drive motor, runing rest, linear drive motor and probe seat, rotary drive motor installs on the first mount pad, rotary drive motor's pivot with runing rest connects and drives runing rest carries out rotary motion, linear drive motor installs runing rest is last, linear drive motor's pivot with probe seat is connected and is driven probe seat carries out linear motion, terahertz probe mounting is in on the probe seat, the tubulose part is installed when part fixing device is last probe seat can get into in the central through-hole of tubulose part.
2. The apparatus for detecting the coating of the inner wall of the tubular member as claimed in claim 1, wherein: the probe driving device also comprises a driving wheel, a synchronous belt, a guide rod, a second mounting seat, a rotating disk, a bearing, a driven wheel bracket and a driven wheel, the driving wheel is arranged on a rotating shaft of the linear driving motor, the rotating disc is arranged on the second mounting seat through the bearing, two ends of the guide rod are respectively connected with the rotating bracket and the rotating disc, the driven wheel is arranged on the rotating disc through the driven wheel bracket, two ends of the synchronous belt are respectively arranged on the driving wheel and the driven wheel, the probe seat is provided with a guide through hole, the guide rod passes through the guide through hole, the probe seat with the hold-in range is connected and is located the action wheel with from between the driving wheel, tubular part is installed when on the part fixing device the guide bar with the hold-in range all passes tubular part's central through-hole.
3. The apparatus for detecting the coating of the inner wall of the tubular member as claimed in claim 2, wherein: the tubular part inner wall coating detection device further comprises a controller and a terahertz spectrograph, the control input end of the rotary driving motor and the control input end of the linear driving motor are respectively connected with the control output end of the controller correspondingly, and the signal output end of the terahertz probe is connected with the signal input end of the terahertz spectrograph.
4. The apparatus for detecting the coating of the inner wall of the tubular member as claimed in claim 3, wherein: tubulose part inner wall coating detection device still includes return to zero sensor, first spacing sensor and the spacing sensor of second, return to zero sensor with first spacing sensor is installed respectively be close to on the runing rest one side of probe seat and homoenergetic be in the probe seat contacts with it when removing corresponding position, the spacing sensor of second passes through the sensor installation pole and installs on the second mount pad, the spacing sensor of second is located the second mount pad with between the probe seat and can the probe seat contacts with it when removing corresponding position, return to zero sensor's signal output part first spacing sensor's signal output part with the signal output part of second spacing sensor respectively with the signal input part of controller corresponds the connection.
5. The apparatus for inspecting the coating of the inner wall of a tubular member according to claim 2, 3 or 4, wherein: the driven wheel is a tension wheel and is installed on the driven wheel support through a tension shaft, the driven wheel is located on one side, away from the first installation seat, of the rotating disc, a through hole is formed in the rotating disc, and the synchronous belt penetrates through the through hole.
6. The apparatus for inspecting the coating of the inner wall of a tubular member according to claim 2, 3 or 4, wherein: the guide rods are two parallel to each other.
7. The apparatus for inspecting the coating of the inner wall of a tubular member according to claim 2, 3 or 4, wherein: the part fixing device comprises a first fixing seat, a second fixing seat and a locking pull rod, wherein a first fixing plate is arranged on the first fixing seat, the first fixing plate is provided with a first fixing plate through hole, the second fixing seat is provided with a second fixing plate, a second fixing plate through hole is arranged on the second fixing plate, two ends of the plurality of locking pull rods are respectively connected with the first fixing plate and the second fixing plate, the space between the first fixing plate and the second fixing plate is used for mounting the tubular part, and the central through hole of the mounted tubular part is mutually communicated and coaxial with the through hole of the first fixing plate and the through hole of the second fixing plate, the first fixed seat and the second fixed seat are positioned between the first mounting seat and the second mounting seat and are sequentially arranged in the same straight line direction, the guide rod with the hold-in range all passes first fixed plate through-hole with the second fixed plate through-hole.
8. The apparatus for detecting the coating of the inner wall of the tubular member as claimed in claim 7, wherein: the locking pull rods are four and are uniformly distributed on the peripheries of the through holes of the first fixing plate and the through holes of the second fixing plate, external threads are arranged at two ends of each locking pull rod respectively, and two ends of each locking pull rod are connected with corresponding locking nuts after penetrating through corresponding through holes in the first fixing plate and corresponding through holes in the second fixing plate respectively.
9. The apparatus for inspecting the coating of the inner wall of a tubular member according to any one of claims 1 to 4, wherein: and a rotating shaft of the rotary driving motor is connected with the rotary bracket through a speed reducing mechanism.
10. The apparatus for inspecting the coating of the inner wall of a tubular member according to any one of claims 1 to 4, wherein: the rotary driving motor and the linear driving motor are both servo motors.
CN202221256611.9U 2022-05-24 2022-05-24 Detection device for inner wall coating of tubular part Active CN217424294U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202221256611.9U CN217424294U (en) 2022-05-24 2022-05-24 Detection device for inner wall coating of tubular part

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Application Number Priority Date Filing Date Title
CN202221256611.9U CN217424294U (en) 2022-05-24 2022-05-24 Detection device for inner wall coating of tubular part

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CN217424294U true CN217424294U (en) 2022-09-13

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117029718A (en) * 2023-07-24 2023-11-10 无锡市昊昊钢管有限公司 Accurate steel pipe detection device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN117029718A (en) * 2023-07-24 2023-11-10 无锡市昊昊钢管有限公司 Accurate steel pipe detection device
CN117029718B (en) * 2023-07-24 2024-01-26 无锡市昊昊钢管有限公司 Accurate steel pipe detection device

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