Thin-walled cylindrical product inspection apparatus and method of inspection

Abstract

This invention provides a testing device and method for thin-walled cylindrical products in the field of rocket tube section testing technology. The device includes a frame, a guide wheel mechanism, a motor-driven wheel mechanism, and an electrical control system. The invention uses four motor-driven wheel mechanisms located at the four corners of the frame. Each wheel has a long groove. The thin-walled cylindrical product to be tested is placed in these grooves. A T-slot is provided on a rectangular hollow steel section. The electrical control system remotely controls the testing device to move along the T-slots to the testing position. Then, the motor is remotely controlled to drive the wheels to rotate, thereby rotating the product axially and aligning the tested portion with the testing instrument. This significantly reduces manual operation and improves testing efficiency and operational safety.

Description

Technical Field

[0001] This invention relates to the field of rocket tube section testing technology, specifically to a thin-walled cylindrical product testing equipment and testing method. Background Technology

[0002] With the continuous development of launch vehicle technology, especially the rapid development of the commercial aerospace industry, the number of launch vehicle models and missions has increased significantly, leading to a growing demand for launch vehicle section inspection. Launch vehicle sections are primarily thin-walled cylindrical products, and the inspection requirements mainly involve radiographic inspection of circumferential and longitudinal welds, as well as recording of specific areas. Current inspection methods typically involve fixing the inspection instrument, hoisting the product to be inspected onto the support equipment at the inspection station, and then manually rotating the section to the required inspection position. This method is inefficient and carries certain operational risks, failing to meet the increasing inspection demands. Therefore, a highly automated thin-walled cylindrical product inspection device is needed to improve inspection efficiency and operational safety.

[0003] A prior art search revealed Chinese invention patent publication number CN110470201A, which discloses a device and method for detecting the cylindricity of thin-walled cylindrical parts. The invention involves two rollers fixed to a central shaft, with the inner ends of the central shaft detachably fixed. One roller is rotatably connected to an eccentric shaft via an outer bearing, while the other roller is rotatably connected to the eccentric shaft via an inner bearing. The eccentric shaft extends outward and is fixed with a knob. The inner end of the eccentric shaft is detachably fixed. Two positioning components are respectively slidably mounted on the two central shafts with their tips facing each other. A turntable is coaxially rotatably connected to the end face of the positioning component. Fasteners tightly support the end face of the positioning component. Two gears are respectively fitted onto the eccentric shaft and mesh with the two turntables. A square rod is slidably inserted between the edges of the two turntables, and the square rod has multiple insertion holes into which a dial indicator is inserted. This invention suffers from the problem of low detection efficiency due to the manual rotation of the cylindrical section to the required detection position. Summary of the Invention

[0004] To address the shortcomings of existing technologies, the purpose of this invention is to provide a testing device and method for thin-walled cylindrical products.

[0005] A thin-walled cylindrical product testing device according to the present invention includes a frame, a guide wheel mechanism, a motor wheel mechanism, and an electrical control system;

[0006] The frame comprises several rectangular hollow steel sections, which are connected by bolts to form the frame.

[0007] The guide wheel mechanism includes a guide wheel, a guide wheel bracket, bolts, a shaft, and a bearing. The guide wheel, the guide wheel bracket, the shaft, and the bearing are connected by bolts to form the guide wheel mechanism, and the guide wheel mechanism is fixed to the frame by bolts.

[0008] The motor wheel mechanism includes a drive motor, a coupling, a second bearing, a wheel bracket, a second shaft, a wheel, a cover, a motor bracket, and an electric roller. The drive motor, the motor bracket, the second shaft, the second bearing, the electric roller, the wheel, and the wheel bracket are connected by bolts, the cover, and the coupling to form the motor wheel mechanism, and the motor wheel mechanism is fixed to the frame by bolts.

[0009] The rotating wheel has a long groove in the middle, and the product to be tested is placed in the long groove.

[0010] The rectangular hollow steel section is provided with T-slots, and the four guide wheel mechanisms are symmetrically arranged at the four corners of the frame for the detection equipment to move along the T-slots;

[0011] The electronic control system drives the drive motor, which in turn drives the rotating wheel to rotate. The rotating wheel causes the product to be tested to rotate axially to the required angle, and the testing part of the product to be tested is aligned with the testing equipment.

[0012] In some implementations, the frame adopts a square frame structure.

[0013] In some embodiments, the rectangular hollow steel section is a rectangular cold-formed hollow steel section with a side length of 100mm×50mm, a wall thickness of 4mm, and a length of 2080mm. The rectangular hollow steel section is made of low alloy steel material, and several φ24 through holes are provided on the rectangular hollow steel section.

[0014] In some embodiments, a through hole is provided between the two guide wheels, and the through hole is installed with the shaft through the bearing, which is a 62042RS bearing.

[0015] In some embodiments, the four motor wheel mechanisms are symmetrically arranged at the four corners of the frame for the detection equipment to move from the station to be detected to the detection station.

[0016] In some embodiments, the impeller is made of rubber.

[0017] In some embodiments, the electrical control system controls the rotation of the electric roller, and when the electric roller rotates, it drives the testing equipment to move along the guide rail to the testing station.

[0018] In some embodiments, the guide wheel is disposed below the guide wheel bracket, and the guide wheel is connected to the guide wheel bracket via the first shaft and the first bearing, with bolts fixing both ends of the first shaft.

[0019] In some embodiments, the electric roller is installed below the motor bracket, the drive motor and the wheel bracket are installed above the motor bracket, the second shaft passes through the wheel bracket and the wheel, the wheel is disposed inside the wheel bracket, and the drive motor connects the wheel bracket and the wheel through the coupling, the second bearing, the cover and the second shaft.

[0020] A method for testing thin-walled cylindrical products, using the aforementioned thin-walled cylindrical product testing equipment.

[0021] Compared with the prior art, the present invention has the following beneficial effects:

[0022] This invention features four motor-driven rotating wheel mechanisms positioned at the four corners of a frame. Each rotating wheel has a long groove. The thin-walled cylindrical product to be tested is placed within these grooves. A rectangular hollow steel section has a T-slot. The testing equipment is remotely controlled via an electrical control system to move along the T-slots to the testing station. Then, the motors are remotely controlled to drive the rotating wheels, which in turn rotate the product axially, aligning the tested portion with the testing instrument for inspection. This significantly reduces manual operation and improves testing efficiency and operational safety. Attached Figure Description

[0023] Other features, objects, and advantages of the present invention will become more apparent from the following detailed description of non-limiting embodiments with reference to the accompanying drawings:

[0024] Figure 1 This is a schematic diagram of the thin-walled cylindrical product testing equipment of the present invention;

[0025] Figure 2 This is a schematic diagram of the thin-walled cylindrical product testing equipment of the present invention, in which the thin-walled cylindrical product to be tested is placed;

[0026] Figure 3 This is a schematic diagram of the rectangular hollow steel section in the thin-walled cylindrical product testing equipment of the present invention;

[0027] Figure 4 This is a schematic diagram of the guide wheel mechanism of the thin-walled cylindrical product testing equipment of the present invention;

[0028] Figure 5 This is a schematic cross-sectional view of the guide wheel mechanism of the thin-walled cylindrical product testing equipment of the present invention;

[0029] Figure 6This is a schematic diagram of the motor wheel mechanism of the thin-walled cylindrical product testing equipment of the present invention.

[0030] Detailed Implementation

[0031] The present invention will now be described in detail with reference to specific embodiments. These embodiments will help those skilled in the art to further understand the present invention, but do not limit the invention in any way. It should be noted that those skilled in the art can make several changes and improvements without departing from the concept of the present invention. These all fall within the protection scope of the present invention.

[0032] Example 1

[0033] like Figure 3 As shown, the rectangular hollow steel 11 is a rectangular cold-formed hollow steel with a side length of 100mm×50mm, a wall thickness of 4mm, and a length of 2080mm. The rectangular hollow steel 11 is made of low alloy steel material, and several φ24 through holes are provided on the rectangular hollow steel 11 for bolt installation.

[0034] Example 2

[0035] like Figure 4 and Figure 5 As shown, the guide wheel mechanism 2 includes a guide wheel 21, a guide wheel bracket 22, a bolt 23, a shaft 24, and a bearing 25. The guide wheel 21, the guide wheel bracket 22, the shaft 24, and the bearing 25 are connected by bolts 23 to form the guide wheel mechanism 2.

[0036] Guide wheel 21 is located below guide wheel bracket 22. Guide wheel 21 is connected to guide wheel bracket 22 via shaft 24 and bearing 25. Shaft 24 is fixed with bolts 23 at both ends. A through hole is provided between the two guide wheels 21. The through hole and shaft 24 are installed by fitting bearing 25. Bearing 25 is a 62042RS bearing.

[0037] Example 3

[0038] like Figure 6 As shown, the motor wheel mechanism 3 includes a drive motor 31, a coupling 32, a second bearing 33, a wheel bracket 34, a second shaft 35, a wheel 36, a cover 37, a motor bracket 38, and an electric roller 39. The drive motor 31, motor bracket 38, second shaft 35, second bearing 33, electric roller 39, wheel 36, and wheel bracket 34 are connected by bolts, a cover 37, and a coupling 32 to form the motor wheel mechanism 3.

[0039] An electric roller 39 is installed below the motor bracket 38, and a drive motor 31 and a rotating wheel bracket 34 are installed above the motor bracket 38. A second shaft 35 passes through the rotating wheel bracket 34 and the rotating wheel 36. The rotating wheel 36 is located inside the rotating wheel bracket 34. The drive motor 31 connects the rotating wheel bracket 34 and the rotating wheel 36 through a coupling 32, a second bearing 33, a cover 37, and a second shaft 35. The rotating wheel 36 is made of rubber and has a long groove in the middle. The product to be inspected is placed in the long groove, which prevents the product from falling out. The motor-rotating wheel mechanism 3 is used for the rotational inspection of thin-walled cylindrical products. It is used to move the inspection equipment from the inspection station to the inspection station and to drive the thin-walled cylindrical product to be inspected to rotate axially, so that the part to be inspected is aligned with the fixed inspection instrument.

[0040] Example 4

[0041] like Figure 1 and Figure 2 As shown, the system includes a frame 1, a guide wheel mechanism 2, a motor wheel mechanism 3, and an electrical control system. The frame 1 includes several rectangular hollow steel sections 11, which are connected by bolts to form the frame 1. The guide wheel mechanism 2 is fixed to the frame 1 by bolts, and the motor wheel mechanism 3 is fixed to the frame 1 by bolts.

[0042] The frame 1 adopts a square frame structure. Four motor-driven wheel mechanisms 3 are symmetrically arranged at the four corners of the frame 1 to move the testing equipment from the workstation to the testing station. The electrical control system drives the drive motor 31, which in turn drives the wheel 36 to rotate. The wheel 36 rotates the product to be tested axially to the required angle, aligning the testing part of the product with the testing equipment. The electrical control system also controls the electric roller 39 to rotate, which in turn moves the testing equipment along the guide rail to the testing station. T-slots are provided on the rectangular hollow steel section 11, and guide wheels are set in the T-slots. Four guide wheel mechanisms 2 are symmetrically arranged at the four corners of the frame 1 to move the testing equipment along the T-slots.

[0043] Example 5

[0044] A method for testing thin-walled cylindrical products, using the thin-walled cylindrical product testing equipment described in Examples 1 to 4.

[0045] Working principle

[0046] The rectangular hollow steel section 11 is provided with T-slots, and the guide wheels are set in the T-slots. The four guide wheel mechanisms 2 are symmetrically arranged at the four corners of the frame 1 for the detection equipment to move along the T-slots.

[0047] The product to be inspected is mounted on the rotating wheel 36. Four motor-driven rotating wheel mechanisms 3 are symmetrically arranged at the four corners of the frame 1 to move the inspection equipment from the workstation to the inspection station. The electrical control system drives the drive motor 31, which in turn drives the rotating wheel 36 to rotate. The rotating wheel 36 rotates the product to be inspected axially to the required angle, aligning the inspection part of the product with the inspection equipment. The electrical control system also controls the rotation of the electric roller 39, which moves the inspection equipment along the guide rail to the inspection station. The motor-driven rotating wheel mechanism 3 is used for the rotational inspection of thin-walled cylindrical products, for moving the inspection equipment from the workstation to the inspection station and for driving the thin-walled cylindrical product to be inspected axially to align its inspection part with the fixed inspection instrument.

[0048] In the description of this application, it should be understood that the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0049] Specific embodiments of the present invention have been described above. It should be understood that the present invention is not limited to the specific embodiments described above, and those skilled in the art can make various changes or modifications within the scope of the claims, which do not affect the essence of the present invention. Unless otherwise specified, the embodiments and features described in this application can be arbitrarily combined with each other.

Claims

1. A thin-walled cylindrical product inspection apparatus characterized by comprising: It comprises a rack (1), a guide rail wheel mechanism (2), a motor rotating wheel mechanism (3) and an electric control system. The rack (1) comprises several rectangular hollow section steels (11), which are coupled into the rack (1) by bolts. The guide rail wheel mechanism (2) comprises a guide rail wheel (21), a guide rail wheel support (22), a bolt (23), a shaft one (24) and a bearing one (25), which are coupled into the guide rail wheel mechanism (2) by the bolt (23), and the guide rail wheel mechanism (2) is fixed on the rack (1) by bolts. The motor rotating wheel mechanism (3) comprises a driving motor (31), a shaft coupling (32), a bearing two (33), a rotating wheel support (34), a shaft two (35), a rotating wheel (36), a transparent cover (37), a motor support (38) and an electric roller (39), which are coupled into the motor rotating wheel mechanism (3) by bolts, the transparent cover (37) and the shaft coupling (32), and the motor rotating wheel mechanism (3) is fixed on the rack (1) by bolts. A long groove is arranged in the middle of the rotating wheel (36), and the product to be detected is placed in the long groove. A T-shaped groove is arranged on the rectangular hollow section steel (11), and four guide rail wheel mechanisms (2) are symmetrically arranged at the four corners of the rack (1) for moving the detection equipment along the T-shaped groove. The electric control system drives the driving motor (31), the driving motor (31) drives the rotating wheel (36) to rotate, the rotating wheel (36) drives the product to be detected to rotate axially to the required angle, and the detection part of the product to be detected is aligned with the detection equipment. Four motor rotating wheel mechanisms (3) are symmetrically arranged at the four corners of the rack (1).

2. The thin-walled cylindrical product inspection apparatus according to claim 1, characterized by The rack (1) adopts a square frame structure.

3. The thin-walled cylindrical product inspection apparatus according to claim 1, characterized by The rectangular hollow section steel (11) adopts a rectangular cold-bent hollow section steel with a side length of 100mm×50mm, a wall thickness of 4mm and a length of 2080mm, is made of low alloy steel material, and is provided with a plurality of φ24 through holes.

4. The thin-walled cylindrical product inspection apparatus according to claim 1, characterized by Two guide rail wheels (21) are provided with through holes, the through holes are installed in cooperation with the shaft one (24) through the bearing one (25), and the bearing one (25) adopts a 62042RS bearing.

5. The thin-walled cylindrical product inspection apparatus according to claim 1, wherein Four motor rotating wheel mechanisms (3) are symmetrically arranged at the four corners of the rack (1) for moving the detection equipment from the detection position to the detection position.

6. The thin-walled cylindrical product inspection apparatus of claim 1, wherein The rotating wheel (36) is made of rubber material.

7. The thin-walled cylindrical product inspection apparatus according to claim 5, wherein The electric control system controls the rotation of the electric roller (39), and the electric roller (39) drives the detection equipment to move along the guide rail to the detection position when rotating.

8. The thin-walled cylindrical product inspection apparatus of claim 1, wherein The guide wheel (21) is arranged below the guide wheel support (22), the guide wheel (21) is connected with the guide wheel support (22) through the shaft one (24) and bearing one (25), and the shaft one (24) is fixed with the bolt (23) at both ends.

9. The thin-walled cylindrical product inspection apparatus of claim 1, wherein The motor support (38) is arranged below the electric roller (39), the driving motor (31) and the rotating wheel support (34) are arranged above the motor support (38), the shaft two (35) penetrates the rotating wheel support (34) and the rotating wheel (36), the rotating wheel (36) is arranged in the rotating wheel support (34), and the driving motor (31) is connected with the rotating wheel support (34) and the rotating wheel (36) through the shaft coupling (32), the bearing two (33), the transparent cover (37) and the shaft two (35).

10. A method of inspecting a thin-walled cylindrical product, characterized by, The thin-walled cylindrical product detection device of any one of claims 1-9 is adopted.

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