Tube core adjustment device and adjustment method

Abstract

The present invention relates to the technical field of tube production, and discloses a tube core adjustment device and an adjustment method. The tube core adjustment device comprises a mounting ring, a measuring assembly and an airbag assembly. The mounting ring is arranged on a tube sleeve, and at least three measuring assemblies are evenly spaced on the mounting ring along the circumference of the mounting ring. The distance measuring sensor of the measuring assembly can be located in the accommodating cavity and facing the tube core. The distance measuring sensor is used to measure the real-time distance between the outer wall of the tube core and the inner wall of the tube sleeve in the extension direction of the distance measuring sensor. At least three groups of airbag assemblies are evenly spaced on the mounting ring along the circumference of the mounting ring, and one group of airbag assemblies is connected to a measuring assembly signal. The airbag body of the airbag assembly is located between the outer wall of the tube core and the inner wall of the tube sleeve, and the inflation amount of the airbag body is adjusted according to the real-time distance measured by the measuring assembly, so that in the extension direction of the distance measuring sensor, the difference between the real-time distance between the outer wall of the tube core and the inner wall of the tube sleeve and the standard distance is within a predetermined error range.

Description

Technical Field

[0001] The invention relates to the technical field of tube production, and in particular to a tube core adjustment device and an adjustment method. Background Art

[0002] During the assembly process of the X-ray tube, the tube core should be in a completely centered position after being installed in the tube sleeve. If the tube core is not centered, when the anode screw is tightened, the anode glass will be subjected to a biased external force, causing the anode glass to be in an unstable stress state, increasing the risk of anode glass breakage. Anode glass breakage will not only cause the X-ray tube to fail to work properly, but may also pose a safety hazard to surrounding equipment and personnel. Therefore, it is very critical to ensure that the tube core is in a completely centered state when it is installed in the tube sleeve. In traditional X-ray tube production, adjusting the center point of the tube core often relies on manual operation. Manual adjustment has many disadvantages. On the one hand, the operator needs to have professional skills and experience, and the adjustment process is relatively complicated and time-consuming, so a lot of manpower costs are required. On the other hand, the efficiency of manual adjustment is relatively low, which is difficult to meet the needs of large-scale production.

[0003] Therefore, there is an urgent need for a tube core adjustment device and an adjustment method to solve the above problems. Summary of the invention

[0004] One object of the present invention is to provide a tube core adjustment device, which can solve the problem that the tube core is not centered when installed in a tube sleeve, ensure product quality, and at the same time does not require manual operation and has high adjustment efficiency.

[0005] As conceived above, the technical solution adopted by the present invention is:

[0006] A tube core adjustment device is provided, which can be installed on a tube sleeve, wherein the tube sleeve has a receiving cavity, and the receiving cavity is used to receive the tube core. The tube core adjustment device comprises:

[0007] A mounting ring, arranged on the pipe sleeve;

[0008] At least three measuring assemblies are provided, and at least three measuring assemblies are evenly spaced on the mounting ring along the circumference of the mounting ring, and the distance measuring sensors of the measuring assemblies are located in the accommodating cavity and face the tube core, and the distance measuring sensors are used to measure the real-time distance between the outer wall of the tube core and the inner wall of the tube sleeve in the extension direction of the distance measuring sensors;

[0009] The airbag assembly is provided with at least three groups, wherein at least three groups of the airbag assemblies are evenly spaced on the mounting ring along the circumference of the mounting ring, and one group of the airbag assemblies is signal-connected to one of the measuring assemblies; the airbag assembly comprises an airbag body, wherein the airbag body can be located between the outer wall of the tube core and the inner wall of the tube sleeve, and the inflation amount of the airbag body is adjusted according to the real-time distance so that the difference between the real-time distance and the standard distance is within a predetermined error range; the standard distance is the distance between the outer wall of the tube core and the inner wall of the tube sleeve in the extension direction of the distance measuring sensor when the tube core is in a predetermined position.

[0010] Optionally, the mounting ring includes a first ring, the first ring is at least partially inserted into the accommodating cavity and fixed to the sleeve, and the measuring component and the airbag component are both arranged on the first ring.

[0011] Optionally, the mounting ring further comprises a second ring, the second ring is sleeved outside the first ring, the second ring is connected to the first ring and forms a step surface in the axial direction of the mounting ring, the second ring is located outside the pipe sleeve, and the step surface abuts against the end of the pipe sleeve.

[0012] Optionally, the second ring is detachably connected to the sleeve.

[0013] Optionally, the airbag assembly further includes a pressure reducing valve and a compressed gas storage module, wherein the inlet of the pressure reducing valve is communicated with the compressed gas storage module, the outlet of the pressure reducing valve is communicated with the vent of the airbag body, and the pressure reducing valve is signal-connected with the measurement assembly.

[0014] Optionally, the airbag assembly further includes a pressure gauge, which is connected to the vent of the airbag body and is used to display the real-time air pressure value in the airbag body.

[0015] Optionally, the axial length of the airbag body in the mounting ring is L, and L is ≥ 100 mm.

[0016] Optionally, the distance measuring sensor and the airbag body are staggered in the circumferential direction of the mounting ring.

[0017] Optionally, the mounting ring is coaxially arranged with the sleeve.

[0018] Another object of the present invention is to provide an adjustment method that can solve the problem of the tube core being not centered when installed in the tube sleeve, thereby ensuring product quality, while requiring no manual operation and having high adjustment efficiency.

[0019] As conceived above, the technical solution adopted by the present invention is:

[0020] An adjustment method is provided, which is applied to the above-mentioned die adjustment device, and comprises the following steps:

[0021] The measuring component measures the real-time distance, and determines whether the difference between the real-time distance and the standard distance is within a predetermined error range;

[0022] If the difference between the real-time distance and the standard distance is within a predetermined error interval, it is considered that the tube core is located at a predetermined position;

[0023] If the difference between the real-time distance and the standard distance is outside a predetermined error range, the measuring component outputs an adjustment signal to the corresponding airbag component, and the airbag component adjusts the inflation amount according to the adjustment signal.

[0024] The beneficial effects of the present invention are:

[0025] The tube core adjustment device proposed by the present invention comprises a mounting ring, a measuring assembly and an airbag assembly, wherein the measuring assembly and the airbag assembly are both arranged on the mounting ring, and the mounting ring can be mounted on the tube sleeve. At least three measuring assemblies are arranged, and at least three measuring assemblies are evenly spaced along the circumference of the mounting ring. The distance measuring sensor of the measuring assembly is located in the accommodating cavity and faces the tube core, and the distance measuring sensor can measure the real-time distance between the outer wall of the tube core and the inner wall of the tube sleeve in the extension direction of the distance measuring sensor. At least three groups of airbag assemblies are arranged, and at least three groups of airbag assemblies are evenly spaced along the circumference of the mounting ring, and one group of airbag assemblies is connected to one measuring assembly signal. The airbag assembly includes an airbag body. When the mounting ring is arranged on the tube sleeve, the airbag body is located in the accommodating cavity and can be located between the outer wall of the tube core and the inner wall of the tube sleeve. The airbag body is used to prevent the outer wall of the tube core from contacting the inner wall of the tube sleeve. When the inflation amount of the airbag body between the outer wall of the tube core and the inner wall of the tube sleeve increases, the tube core can be pressed, thereby pushing the tube core to move relative to the tube sleeve, that is, the inflation amount of at least three airbag bodies is adjusted so that the tube core can move in all directions, so that the difference between the real-time distance between the outer wall of the tube core and the inner wall of the tube sleeve in the extension direction of the distance measuring sensor and the standard distance is within a predetermined error range, and at this time, it is considered that the tube core is in a predetermined position. The tube core adjustment device can adjust the position of the tube core placed in the tube sleeve to solve the problem that the tube core is not centered when installed in the tube sleeve, ensure product quality, and at the same time, no manual operation is required, and the adjustment efficiency is high.

[0026] The adjustment method proposed in the present invention is applied to the above-mentioned tube core adjustment device, and the measuring component measures the real-time distance and determines whether the difference between the real-time distance and the standard distance is within the predetermined error interval. If the difference between the real-time distance and the standard distance is within the predetermined error interval, it is considered that the tube core is located at the predetermined position. If the difference between the real-time distance and the standard distance is outside the predetermined error interval, the measuring component outputs an adjustment signal to the corresponding airbag component, and the airbag component adjusts the inflation amount according to the adjustment signal. The measuring component is used to measure the position of the tube core, and the airbag component is used to push the tube core to move, thereby solving the problem that the tube core is not centered when installed in the tube sleeve, ensuring product quality, and no manual operation is required, and the adjustment efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 is a schematic diagram of the structure decomposition of a tube core adjustment device provided by an embodiment of the present invention;

[0028] Figure 2 It is a partial assembly diagram of the tube core adjustment device and the tube provided by an embodiment of the present invention;

[0029] Figure 3 It is a partial cross-sectional view of a tube core adjustment device and a ball tube provided in an embodiment of the present invention.

[0030] In the figure:

[0031] 1. Mounting ring; 11. First ring; 12. Second ring;

[0032] 2. Measuring component; 21. Distance measuring sensor;

[0033] 3. Airbag assembly; 31. Airbag body; 32. Pressure reducing valve; 33. Pressure gauge;

[0034] 100, tube sleeve; 200, tube core. DETAILED DESCRIPTION

[0035] In order to make the technical problems solved by the present invention, the technical solutions adopted and the technical effects achieved clearer, the technical solutions of the present invention are further described below in conjunction with the accompanying drawings and through specific implementation methods. It is understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for the convenience of description, only the parts related to the present invention are shown in the accompanying drawings, not all.

[0036] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0037] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0038] In the description of this embodiment, the terms "upper", "lower", "left", "right" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0039] The technical solution of the present invention is further described below with reference to the accompanying drawings and through specific implementation methods.

[0040] like Figures 1 to 3 As shown, this embodiment provides a tube core adjustment device, which can be installed on a tube sleeve 100. The tube sleeve 100 has a receiving cavity, and the receiving cavity is used to receive the tube core 200. The tube core adjustment device can adjust the position of the tube core 200 in the tube sleeve 100 to solve the problem that the tube core 200 is not centered when installed in the tube sleeve 100, thereby ensuring product quality. At the same time, no manual operation is required, and the adjustment efficiency is high.

[0041] Specifically, the tube core adjustment device includes a mounting ring 1, a measuring assembly 2 and an airbag assembly 3. The measuring assembly 2 and the airbag assembly 3 are both arranged on the mounting ring 1, and the mounting ring 1 can be arranged on the tube sleeve 100. At least three measuring assemblies 2 are arranged, and at least three measuring assemblies 2 are evenly spaced along the circumference of the mounting ring 1. When the mounting ring 1 is arranged on the tube sleeve 100, the distance sensor 21 of the measuring assembly 2 will be located in the accommodating cavity and facing the tube core 200. The distance sensor 21 can measure the real-time distance between the outer wall of the tube core 200 and the inner wall of the tube sleeve 100 in the extension direction of the distance sensor 21. At least three groups of airbag assemblies 3 are arranged, and at least three groups of airbag assemblies 3 are evenly spaced along the circumference of the mounting ring 1. One group of airbag assemblies 3 is connected to one measuring assembly 2 by signal. The airbag assembly 3 includes an airbag body 31. When the mounting ring 1 is disposed on the tube sleeve 100, the airbag body 31 will be located in the accommodating cavity and can be located between the outer wall of the tube core 200 and the inner wall of the tube sleeve 100. The airbag body 31 is used to prevent the outer wall of the tube core 200 from contacting the inner wall of the tube sleeve 100. When the inflation amount of the airbag body 31 between the outer wall of the tube core 200 and the inner wall of the tube sleeve 100 increases, the tube core 200 can be pressed, thereby pushing the tube core 200 to move relative to the tube sleeve 100. The inflation amount of at least three airbag bodies 31 is adjusted so that the tube core 200 can move in all directions, so that the difference between the real-time distance between the outer wall of the tube core 200 and the inner wall of the tube sleeve 100 in the extending direction of the distance measuring sensor 21 and the standard distance is within a predetermined error range, and at this time, it is considered that the tube core 200 is in a predetermined position. The standard distance is the distance between the outer wall of the tube core 200 and the inner wall of the tube sleeve 100 in the extending direction of the distance measuring sensor 21 when the tube core 200 is at a predetermined position.

[0042] In specific implementation, when the position of the tube core 200 is adjusted by using the tube core adjustment device, the tube core adjustment device needs to be installed on the tube sleeve 100 first, so that the distance sensor 21 and the airbag body 31 are located in the accommodating cavity, and then the tube core 200 is placed in the accommodating cavity. When the tube core 200 is placed in the predetermined position in the accommodating cavity, the lower part of the tube core 200 is coaxially arranged with the tube sleeve 100, and the upper part of the tube core 200 is eccentrically arranged with the tube sleeve 100, and the distance sensor 21 is horizontally facing the upper part of the tube core 200, that is, the standard distance between the outer wall of the tube core 200 and the inner wall of the tube sleeve 100 measured by each distance sensor 21 in the extension direction of the distance sensor 21 is not necessarily equal. When adjusting the tube core 200, it is only necessary that the difference between the real-time distance and the standard distance is within the predetermined error range.

[0043] Optionally, the airbag body 31 extends along the axial direction of the mounting ring 1, and the axial length of the airbag body 31 in the mounting ring 1 is L, where L is ≥ 100 mm. In this embodiment, since the airbag body 31 is disposed through the mounting ring 1 and the airbag body 31 must extend to the lower part of the tube core 200, the axial length of the airbag body 31 in the mounting ring 1 is limited. In other embodiments, the depth of the mounting ring 1 extending into the accommodating cavity may also be extended so that the mounting ring 1 is as close to the lower part of the tube core 200 as possible, so as to shorten the axial length of the airbag body 31 in the mounting ring 1.

[0044] In this embodiment, three measuring assemblies 2 are provided, and the three measuring assemblies 2 are evenly spaced along the circumference of the mounting ring 1. Three groups of airbag assemblies 3 are provided, and the three groups of airbag assemblies 3 are evenly spaced along the circumference of the mounting ring 1. In other embodiments, the number of measuring assemblies 2 provided may exceed three, and the number of airbag assemblies 3 provided may exceed three.

[0045] In specific implementation, since the airbag body 31 of the airbag assembly 3 needs to penetrate the mounting ring 1 in the radial direction of the mounting ring 1, and the distance sensor 21 of the measuring assembly 2 needs to penetrate the mounting ring 1 in the radial direction of the mounting ring 1, the distance sensor 21 and the airbag body 31 are staggered in the circumferential direction of the mounting ring 1.

[0046] Optionally, the mounting ring 1 includes a first ring 11, which is at least partially inserted into the accommodating cavity and fixed to the sleeve 100, and the measuring component 2 and the airbag component 3 are both arranged on the first ring 11. In a specific implementation, when the first ring 11 is inserted into the accommodating cavity, the first ring 11 is fixed to the sleeve 100 to prevent the airbag component 3 from driving the mounting ring 1 to move during inflation and deflation, thereby affecting the measurement accuracy of the measuring component 2. The first ring 11 can be connected to the inner wall of the accommodating cavity to achieve the fixation of the mounting ring 1 and the sleeve 100.

[0047] Optionally, the mounting ring 1 further includes a second ring 12, which is connected to the first ring 11 and forms a stepped surface in the axial direction of the mounting ring 1. When the mounting ring 1 is disposed on the pipe sleeve 100, the first ring 11 is located outside the accommodating cavity and the stepped surface abuts against the end of the pipe sleeve 100. In a specific implementation, the stepped surface formed between the second ring 12 and the first ring 11 can enable the mounting ring 1 to be placed on the pipe sleeve 100 without moving relative to the pipe sleeve 100 in the axial direction of the mounting ring 1.

[0048] In this embodiment, the second ring 12 is detachably connected to the pipe sleeve 100. A through hole is provided on the second ring 12, and the position of the through hole corresponds to the position of the mounting hole at the end of the pipe sleeve 100. A fastener can be passed through the through hole and fixed in the mounting hole, so as to achieve the fixing of the mounting ring 1 and the pipe sleeve 100.

[0049] In this embodiment, the mounting ring 1 is coaxially arranged with the pipe sleeve 100. The first ring 11 and the second ring 12 are coaxial with the pipe sleeve 100, so the distance between the distance measuring sensor 21 installed on the first ring 11 and the inner wall of the pipe sleeve 100 in the extending direction of the distance measuring sensor 21 is consistent, so that each distance measuring sensor 21 has a consistent basis when measuring the real-time distance.

[0050] Furthermore, the airbag assembly 3 also includes a pressure reducing valve 32 and a compressed gas storage module, the inlet of the pressure reducing valve 32 is connected to the compressed gas storage module, the outlet of the pressure reducing valve 32 is connected to the vent of the airbag body 31, and the pressure reducing valve 32 is connected to the distance sensor 21 signal. In specific implementation, the measuring assembly 2 also includes a control module, the distance sensor 21 can convert the real-time distance into a real-time distance signal and transmit it to the control module, the control module compares the real-time distance signal with the standard distance signal to obtain the difference between the real-time distance and the standard distance, if the difference is outside the predetermined error range, the control module will output a voltage signal to the pressure reducing valve 32 to control the opening of the pressure reducing valve 32. One distance sensor 21 is connected to one pressure reducing valve 32 signal, then according to the real-time distance measured by at least three distance sensors 21, the opening of the corresponding pressure reducing valve 32 of at least three groups of airbag assemblies 3 can be obtained. The pressure reducing valve 32 can reduce the high inlet pressure to the required outlet pressure and keep the outlet pressure within a certain range, so that the compressed gas storage module can output the compressed air of the preset pressure to the corresponding airbag body 31 through the pressure reducing valve 32, so as to achieve the expansion of the corresponding airbag body 31 to different degrees, so as to promote the movement of the tube core 200, and ensure the safe use of the airbag body 31. When the gas in the airbag body 31 needs to be discharged, the set pressure of the pressure reducing valve 32 can be set to be lower than the pressure in the airbag body 31, so that the gas in the airbag body 31 can flow back to the compressed gas storage module through the pressure reducing valve 32.

[0051] Optionally, the airbag assembly 3 further includes a pressure gauge 33, which is connected to the vent of the airbag body 31 and is used to display the real-time air pressure value in the airbag body 31. In specific implementation, the operator can observe the real-time air pressure value displayed by the pressure gauge 33 in real time to ensure the safety of the airbag body 31.

[0052] This embodiment also provides an adjustment method, which is applied to the above-mentioned tube core adjustment device, and the measuring component 2 measures the real-time distance and determines whether the difference between the real-time distance and the standard distance is within a predetermined error interval. If the difference between the real-time distance and the standard distance is within the predetermined error interval, it is considered that the tube core 200 is located at the predetermined position. If the difference between the real-time distance and the standard distance is outside the predetermined error interval, the measuring component 2 outputs an adjustment signal to the corresponding airbag component 3, and the airbag component 3 adjusts the inflation amount according to the adjustment signal. The measuring component 2 is used to measure the position of the tube core 200, and the airbag component 3 is used to push the tube core 200 to move, thereby solving the problem that the tube core 200 is not centered when installed in the tube sleeve 100, ensuring product quality, and no manual operation is required, and the adjustment efficiency is high.

[0053] Specifically, if the difference between the real-time distance and the standard distance is less than the predetermined error interval, the measuring component 2 outputs a first adjustment signal to the corresponding airbag component 3, and the airbag component 3 is filled with a first preset amount of gas according to the first adjustment signal. If the difference between the real-time distance and the standard distance is greater than the predetermined error interval, the measuring component 2 outputs a second adjustment signal to the corresponding airbag component 3, and the airbag component 3 discharges a second preset amount of gas according to the second adjustment signal.

[0054] The above embodiments are only to illustrate the basic principles and characteristics of the present invention. The present invention is not limited by the above embodiments. Without departing from the spirit and scope of the present invention, the present invention may be subject to various changes and modifications, which are within the scope of the present invention. The scope of protection of the present invention is defined by the attached claims and their equivalents.

Claims

1. A tube core adjustment device, capable of being mounted on a tube sleeve (100), wherein the tube sleeve (100) has a receiving cavity, wherein the receiving cavity is used to receive the tube core (200), and wherein: The tube core adjustment device comprises: A mounting ring (1) arranged on the pipe sleeve (100); At least three measuring assemblies (2) are provided, and at least three measuring assemblies (2) are evenly spaced and arranged on the mounting ring (1) along the circumference of the mounting ring (1); a distance sensor (21) of the measuring assembly (2) is located in the accommodating cavity and faces the tube core (200); the distance sensor (21) is used to measure the real-time distance between the outer wall of the tube core (200) and the inner wall of the tube sleeve (100) in the extension direction of the distance sensor (21); An airbag assembly (3) is provided in at least three groups, wherein at least three groups of the airbag assemblies (3) are evenly spaced and arranged on the mounting ring (1) along the circumference of the mounting ring (1), and one group of the airbag assemblies (3) is connected to a signal of one of the measuring assemblies (2); the airbag assembly (3) comprises an airbag body (31), wherein the airbag body (31) can be located between the outer wall of the tube core (200) and the inner wall of the tube sleeve (100), and the inflation volume of the airbag body (31) is adjusted according to the real-time distance so that the difference between the real-time distance and the standard distance is within a predetermined error range; the standard distance is the distance between the outer wall of the tube core (200) and the inner wall of the tube sleeve (100) in the extension direction of the distance measuring sensor (21) when the tube core (200) is in a predetermined position.

2. The tube core adjustment device according to claim 1, characterized in that: The mounting ring (1) comprises a first ring (11), the first ring (11) being at least partially inserted into the accommodating cavity and fixed to the sleeve (100), and the measuring component (2) and the airbag component (3) being both arranged on the first ring (11).

3. The tube core adjustment device according to claim 2, characterized in that: The mounting ring (1) further comprises a second ring (12), the second ring (12) being sleeved outside the first ring (11), the second ring (12) being connected to the first ring (11) and forming a step surface in the axial direction of the mounting ring (1), the second ring (12) being located outside the pipe sleeve (100), and the step surface abutting against an end of the pipe sleeve (100).

4. The tube core adjustment device according to claim 3, characterized in that: The second ring (12) is detachably connected to the pipe sleeve (100).

5. The tube core adjustment device according to claim 1, characterized in that: The airbag assembly (3) further comprises a pressure reducing valve (32) and a compressed gas storage module, wherein the inlet of the pressure reducing valve (32) is connected to the compressed gas storage module, the outlet of the pressure reducing valve (32) is connected to the vent of the airbag body (31), and the pressure reducing valve (32) is connected to the measurement assembly (2) for signal transmission.

6. The tube core adjustment device according to claim 1, characterized in that: The airbag assembly (3) further comprises a pressure gauge (33), wherein the pressure gauge (33) is connected to the vent of the airbag body (31), and the pressure gauge (33) is used to display the real-time air pressure value in the airbag body (31).

7. The tube core adjustment device according to claim 1, characterized in that: The axial length of the airbag body (31) on the mounting ring (1) is L, where L is ≥ 100 mm.

8. The tube core adjustment device according to claim 1, characterized in that: The distance measuring sensor (21) and the airbag body (31) are arranged in a circumferentially staggered manner on the mounting ring (1).

9. The tube core adjustment device according to claim 1, characterized in that: The mounting ring (1) is coaxially arranged with the pipe sleeve (100).

10. The adjustment method, characterized in that The die adjustment device according to any one of claims 1 to 9 comprises the following steps: The measuring component (2) measures the real-time distance and determines whether the difference between the real-time distance and the standard distance is within a predetermined error range; If the difference between the real-time distance and the standard distance is within a predetermined error interval, it is considered that the tube core (200) is located at a predetermined position; If the difference between the real-time distance and the standard distance is outside a predetermined error range, the measuring component (2) outputs an adjustment signal to the corresponding airbag component (3), and the airbag component (3) adjusts the inflation volume according to the adjustment signal.

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