A circumferential adhesion type heat dissipation system with ring thin wall welding

Abstract

The application discloses a circumferential adhering type heat dissipation system with ring thin-wall welding, which comprises an a-rotary body part and a b-rotary body part; the a-rotary body part has a section of a ring thin wall on the outer ring; the b-rotary body part has a section of b ring thin wall on the upper section; in the state that the a-rotary body part and the b-rotary body part are coaxially assembled into a combined part, the a ring thin wall is coaxially adhered and sleeved on the inner side of the b ring thin wall, the upper ends of the a ring thin wall and the b ring thin wall are flush in the spliced state, and the ring splicing seam is formed between the upper ends of the a ring thin wall and the b ring thin wall; a plurality of red copper blocks are elastically held, the contact area is large and uniform, and the heat dissipation effect is obviously superior to that of a traditional copper ring.

Description

Technical Field

[0001] This invention belongs to the field of welding. Background Technology

[0002] When welding thin-walled metal parts, high temperatures can easily cause deformation and ablation, affecting dimensional accuracy and yield. Currently, the industry uses integral or open copper rings to fit around the outer circumference of the part, utilizing the high thermal conductivity of copper to dissipate heat; open copper rings are mostly secured with screws.

[0003] Disadvantages of existing technologies: Insufficient fit: It is difficult to achieve uniform fit throughout the circumference with a solid copper ring or an open copper ring; local gaps will severely reduce heat dissipation efficiency. Easily damages workpieces: Screw tightening force is difficult to control; overtightening can damage or thin thin-walled parts, causing irreversible deformation. Low installation efficiency: Tools such as wrenches are required to tighten screws; the disassembly and assembly steps are cumbersome and time-consuming, which is not conducive to continuous welding operations. Poor versatility: The height of the heat dissipation ring is fixed and cannot be adjusted up and down according to the welding position, limiting its adaptability. Summary of the Invention

[0004] Purpose of the invention: In order to overcome the shortcomings of the existing technology, the present invention provides a circumferentially fitted heat dissipation system with thin-walled ring welding. Multiple copper blocks are elastically clamped together, with a large and uniform contact area, and the heat dissipation effect is significantly better than that of traditional copper rings.

[0005] Technical solution: To achieve the above objectives, the present invention provides a circumferentially fitted heat dissipation system with annular thin-walled welding, comprising a rotating part a and a rotating part b; the outer ring of the rotating part a has a section of annular thin wall a; the upper section of the rotating part b has a section of annular thin wall b; when the rotating parts a and b are coaxially assembled into a combined part, the annular thin wall a is coaxially fitted and sleeved on the inner side of the annular thin wall b, and in the assembled state, the upper ends of the annular thin wall a and the annular thin wall b are flush, and an annular seam is formed between the upper ends of the annular thin wall a and the annular thin wall b;

[0006] The assembly includes a horizontal workpiece constraint ring platform, and the lower end of the combined part, which is coaxially assembled from rotating parts a and b, is coaxially clamped onto the workpiece constraint ring platform. An annular heat absorber slide is coaxially arranged above the workpiece constraint ring platform. Several floating heat absorbers are arranged in a circular array at equal intervals around the outer periphery of the annular thin wall b, with gaps between any two adjacent floating heat absorbers. The lower surface of each floating heat absorber slides and supports the upper surface of the annular heat absorber slide. The side of each floating heat absorber closest to the annular thin wall b is a heat-absorbing arc surface adapted to the outer periphery of the annular thin wall b, and the heat-absorbing arc surface is in contact with the upper outer periphery of the annular thin wall b for heat transfer.

[0007] Furthermore, the height of the annular absorber slide is adjustable.

[0008] Furthermore, a number of upwardly extending external threaded support columns are fixedly installed in a circumferential array on the workpiece constraint ring platform. The upper ends of the external threaded support columns pass upward through the stud through holes on the annular heat absorber slide. Each external threaded support column is fitted with a height adjusting nut, and all the height adjusting nuts together support the annular heat absorber slide upward.

[0009] Furthermore, several floating heat absorbers arranged in a circular array are combined to form an enclosed heat absorber assembly, and an elastic retaining ring is coaxially fitted around the enclosed heat absorber assembly.

[0010] Furthermore, each floating heat absorber has an arc-shaped clamping groove on the side away from the b-shaped thin wall; the inner side of the elastic clamping ring is locked in the arc-shaped clamping groove of each floating heat absorber, and the elastic clamping ring applies a clamping force toward the b-shaped thin wall to any floating heat absorber.

[0011] Furthermore, the elastic retaining ring is an elastic fluororubber ring or a metal spring ring, and the floating heat absorber is a solid copper body.

[0012] Furthermore, each floating heat absorber has a threaded hole at its upper end, and an adaptive drift stud is threaded into each threaded hole. The enclosed heat absorber assembly formed by several floating heat absorbers also has a horizontal adaptive ring that is coaxially slidably supported on its upper side. Several waist-shaped grooves are arranged in a circular array on the adaptive ring, and the centerline extension line of each waist-shaped groove along its length direction passes through the center of the adaptive ring. Each waist-shaped groove corresponds to a drift stud of a floating heat absorber. Each drift stud passes upward through the corresponding waist-shaped groove, and the groove width of the waist-shaped groove is consistent with the outer diameter of the drift stud. Therefore, the drift stud can only drift along the centerline extension line of the waist-shaped groove along its length direction.

[0013] Furthermore, a nut is integrally provided at the upper end of the drift stud; each waist-shaped groove has a mounting groove connected along the centerline extension direction of its length at the end furthest from the center of the adaptive ring, and the mounting groove is located inside the adaptive ring; each mounting groove has a photoelectric ranging sensor fixedly installed along its length; the detection end of the photoelectric ranging sensor corresponds to the drift stud passing through the corresponding waist-shaped groove; the detection end of the photoelectric ranging sensor can detect the amount of drift of the drift stud relative to the centerline extension direction of the waist-shaped groove in real time.

[0014] Further, in step one, the lower end of the combined part, which is coaxially assembled from rotating part a and rotating part b, is coaxially clamped onto the workpiece constraint ring platform.

[0015] Step 2: Place the prepared floating heat absorbers in a circular array on the upper surface of the annular heat absorber slide, with the heat-absorbing arc surface of each floating heat absorber facing the annular thin wall (b). At the same time, adjust the height of the annular heat absorber slide using the height adjustment nuts so that the floating heat absorbers slidably supported on the annular heat absorber slide reach the appropriate height.

[0016] Step 3: Place the adaptive ring flat on the upper side of the enclosed heat absorption assembly composed of several floating heat absorbers; then, pass several drift studs downward through their respective waist-shaped grooves and further thread them into the threaded holes on their respective floating heat absorbers. Note that during the process of screwing in the drift studs, avoid tightening them completely.

[0017] Step four: The elastic ring is used to enclose the enclosed heat absorption assembly composed of several floating heat absorbers, and the inner side of the elastic ring is locked in the arc groove of each floating heat absorber. The elastic ring applies a clamping force to any floating heat absorber towards the side of the annular thin wall.

[0018] Beneficial effects: Full circumferential fit and high heat dissipation efficiency: Multiple copper blocks elastically clamp together, providing a large and uniform contact area, resulting in significantly better heat dissipation than traditional copper rings. Screwless rigid clamping eliminates the risk of pressure damage or deformation, improving yield. Tool-free installation and removal: simply align and install, saving significant auxiliary time. Height adjustable and highly versatile: Micro-adjustable up and down to fit different parts and welding positions. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall device;

[0020] Figure 2 This is a schematic diagram of the structure after the rotating parts a and b are assembled.

[0021] Figure 3 This is a schematic diagram of the disassembly and explosion of this device;

[0022] Figure 4 This is a schematic diagram of an electro-optical ranging sensor;

[0023] Figure 5 This is a cross-sectional view of the device;

[0024] Figure 6 A schematic diagram of the baseline circle profile and closed-loop fitting profile model created on computer graphics software. Detailed Implementation

[0025] The invention will now be further described with reference to the accompanying drawings.

[0026] like Figures 1 to 6The illustrated circumferentially fitted heat dissipation system with thin-walled annular welding includes a rotating part 17 and a rotating part 15. The outer ring of rotating part 17 has an annular thin wall 18. The upper part of rotating part 15 has an annular thin wall 16. When rotating part 17 and rotating part 15 are coaxially assembled into a combined part 7, the annular thin wall 18 is coaxially fitted and sleeved on the inner side of the annular thin wall 16. In the assembled state, the upper ends of the annular thin wall 18 and the annular thin wall 16 are flush, and an annular seam 12 is formed between the upper ends of the annular thin wall 18 and the annular thin wall 16. Both the annular thin wall 18 and the annular thin wall 16 are thin-walled structures with a wall thickness of no more than 4 mm, which are prone to irreversible warping deformation due to heat input during welding.

[0027] It also includes a horizontal workpiece constraint ring platform 9, and the lower end of the combined part 7, which is coaxially assembled from a rotating part 17 and a rotating part 15, is coaxially clamped on the workpiece constraint ring platform 9; an annular heat absorber slide 18 is coaxially arranged above the workpiece constraint ring platform 9, and the height of the annular heat absorber slide 18 is adjustable; the upper surface of the annular heat absorber slide 18 is a low friction coefficient plane that has been ground to reduce the frictional resistance of the floating heat absorber 5 when it slides radially.

[0028] A number of externally threaded support columns 11 extending upwards are fixedly installed in a circumferential array on the workpiece constraint ring platform 9. The upper ends of the externally threaded support columns 11 pass through the stud through holes on the annular heat absorber slide 18. Each externally threaded support column 11 is fitted with a height adjusting nut 19. The height adjusting nuts 19 support the annular heat absorber slide 18 upwards, thereby making the height of the annular heat absorber slide 18 adjustable. By synchronously rotating each height adjusting nut 19, the levelness and axial height of the annular heat absorber slide 18 can be precisely adjusted to ensure that the center height of the heat-absorbing arc surface 37 of each floating heat absorber 5 is consistent with the center height of the expected heat-affected zone of the annular joint 12.

[0029] The outer periphery of the annular thin wall 16 is surrounded by several floating heat absorbers 5 in a circular array at equal intervals, and there is a gap between any two adjacent floating heat absorbers 5; the gap provides space margin for the radial floating of the floating heat absorbers 5, and avoids interference between adjacent floating heat absorbers 5 during the aggregation process.

[0030] Each floating heat absorber 5 has a sliding support on its underside that contacts the upper surface of the annular heat absorber slide 18; the side of each floating heat absorber 5 closest to the annular thin wall 16 has a heat-absorbing arc surface 37 that conforms to the outer circumferential surface of the annular thin wall 16, and the heat-absorbing arc surface 37 is in heat transfer contact with the upper outer circumferential surface of the annular thin wall 16; each floating heat absorber 5 has an arc-shaped clamping groove 4 on its side away from the annular thin wall 16; several floating heat absorbers 5 arranged in a circumferential array are combined to form an enclosed heat-absorbing assembly, and an elastic clamping ring 6 is coaxially clamped around the enclosed heat-absorbing assembly. The inner side is locked in the arc groove 4 of each floating heat absorber 5. The elastic retaining ring 6 applies a clamping force to any floating heat absorber 5 toward the side of the b-shaped thin wall 16, so that the heat-absorbing arc surface 37 of each floating heat absorber 5 is tightly attached to the upper outer circumferential surface of the b-shaped thin wall 16. The radial clamping force provided by the elastic retaining ring 6 is sufficient to overcome the static friction between the floating heat absorber 5 and the annular heat absorber slide 18, but it is not enough to hinder the radial micro-displacement caused by welding thermal deformation, so that the floating heat absorber 5 has dynamic adaptive following ability while maintaining effective thermal contact.

[0031] The elastic retaining ring 6 is either an elastic fluororubber ring or a metal spring ring. The elastic fluororubber ring is made of fluororubber material with a temperature resistance of not less than 250℃, and the metal spring ring is made of high-temperature resistant stainless steel wire. Both options can maintain a stable elastic modulus under high-temperature welding conditions. The floating heat absorber 5 is a solid copper body. There are 24 floating heat absorbers 5 in total, which have extremely high thermal conductivity and heat capacity, and can quickly absorb and store the heat conducted from the welding area to the b-shaped thin wall 16. The 24 floating heat absorbers 5 are evenly distributed on the 360° circumference, and the theoretical central angle between two adjacent floating heat absorbers 5 is 15°.

[0032] Each floating heat absorber 5 has a threaded hole 6 at its upper end, and each threaded hole 6 has an adaptive drift stud 1 threadedly fitted inside.

[0033] The enclosed heat absorption assembly composed of several floating heat absorbers 5 is also coaxially and slidably supported by a horizontal adaptive ring 2 on its upper side; several waist-shaped grooves 10 are arranged in a circular array on the adaptive ring 2, and the center line of each waist-shaped groove 10 along the length direction all passes through the center of the adaptive ring 2; each waist-shaped groove 10 corresponds to a drifting stud 1 of a floating heat absorber 5; each drifting stud 1 passes upward through the corresponding waist-shaped groove 10, and the groove width of the waist-shaped groove 10 is consistent with the outer diameter of the drifting stud 1, so the drifting stud 1 can only drift along the center line of the length direction of the waist-shaped groove 10.

[0034] A nut 1a is integrally provided on the upper end of the drift stud 1.

[0035] Each waist-shaped groove 10, at its end furthest from the center of the adaptive ring 2, is provided with a mounting groove 42 extending along the centerline of its length. Figure 4As shown, mounting slots 42 are located inside the adaptive ring 2; each mounting slot 42 has a photoelectric distance sensor 13 fixedly installed along its length; the detection end 14 of the photoelectric distance sensor 13 corresponds to the drift stud 1 passing through the corresponding waist-shaped slot 10; the detection end 14 of the photoelectric distance sensor 13 can detect the amount of drift of the drift stud 1 relative to the centerline extension direction of the waist-shaped slot 10 in real time. The photoelectric distance sensor 13 adopts a laser displacement sensor, which can capture the dynamic drift signal during the welding process in real time; each photoelectric distance sensor 13 is connected to a multi-channel data acquisition module through a shielded cable to synchronously record the drift data of all 24 measuring points.

[0036] Working principle: Step 1, the lower end of the combined part 7, which is coaxially assembled from rotating part a 17 and rotating part b 15, is coaxially clamped onto the workpiece constraint ring platform 9; in the assembled state, the upper ends of the annular thin wall a 18 and the annular thin wall b 16 are flush, and an annular seam 12 is formed between the upper ends of the annular thin wall a 18 and the annular thin wall b 16.

[0037] Step two: Place the prepared floating heat absorbers 5 in a circular array on the upper surface of the annular heat absorber slide 18, with the heat-absorbing arc surface 37 of each floating heat absorber 5 facing the annular thin wall 16. At the same time, adjust the height of the annular heat absorber slide 18 by adjusting the height nuts 19, so that the floating heat absorbers 5 slidably supported on the annular heat absorber slide 18 reach a suitable height, so as to ensure that the heat of the welding heat-affected zone is fully conducted to the floating heat absorbers 5.

[0038] Step 3: Place the adaptive ring 2 flat on the upper side of the enclosed heat absorption assembly composed of several floating heat absorbers 5; then, pass several drifting studs 1 downward through their respective waist-shaped grooves 10 and further thread them into the threaded holes 6 on their respective floating heat absorbers 5. At this time, it is important to avoid fully tightening the drifting studs 1 during the screwing process, and ensure that the nuts 1a of each drifting stud 1 maintain a gap with the upper surface of the adaptive ring 2, so that the drifting studs 1 can drift smoothly in the waist-shaped grooves 10 in the subsequent process.

[0039] Step four: The elastic retaining ring 6 is used to encircle the enclosed heat absorption assembly composed of several floating heat absorbers 5, and the inner side of the elastic retaining ring 6 is locked in the arc groove 4 of each floating heat absorber 5. The elastic retaining ring 6 applies a clamping force to each floating heat absorber 5 towards the side of the b-shaped thin wall 16, so that each floating heat absorber 5 sliding on the annular heat absorber slide 18 will move inward under the action of the elastic clamping force of the elastic retaining ring 6 until the heat absorption arc surface 37 of each floating heat absorber 5 is tightly attached to the upper outer circumferential surface of the b-shaped thin wall 16. During this process, the circumferential contraction of the elastic retaining ring 6 is evenly distributed to each floating heat absorber 5, and the radial convergence displacement of each floating heat absorber 5 is visually reflected by the relative position change of the drifting stud 1 in the waist-shaped groove 10.

[0040] In the above process, the several waist-shaped grooves 10 distributed circumferentially on the adaptive ring 2 constrain the several floating heat absorbers 5 through several drifting studs 1, so that the several floating heat absorbers 5 automatically follow the array of several waist-shaped grooves 10 and are strictly distributed in a circumferentially equidistant array. At the same time, the heat-absorbing arc surface 37 of each floating heat absorber 5 is in close contact with the upper outer circumferential surface of the b-shaped thin wall 16. Conversely, the several drifting studs 1 exert a reverse constraint on the adaptive ring 2, so that the adaptive ring 2 automatically and adaptively maintains the coaxiality with the combined part 7 formed by the coaxial assembly of the a-rotating part 17 and the b-rotating part 15. This coaxial self-alignment mechanism does not require additional centering clamps and can be achieved by relying on the uniform clamping force of the elastic clamping ring 6 and the radial guiding constraint of the waist-shaped grooves 10.

[0041] Step 5: The detection ends 14 of the n photoelectric ranging sensors 13 arranged in a circular array detect the initial position of their respective drift studs 1 relative to the waist-shaped groove 10; assume there are n floating heat absorbers 5; n=24.

[0042] Assume the pre-welding seam 12 profile is a reference circle profile 47 with a known radius. Create a model of the reference circle profile 47 in computer graphics software, such as... Figure 6 On the reference circular contour 47, n original nodes 48 are selected in an equidistant circular array of n floating heat absorbers 5. According to the equidistant array method, each original node 48 corresponds to a photoelectric ranging sensor 13. The computer graphics software used is SOLIDWORKS or AutoCAD. In the software, the reference circular contour 47 is drawn with the design theoretical axis of the combined part 7 as the center and the design radius R of the annular seam 12 as the radius. On the reference circular contour 47, n original nodes 48 are generated at equal angular intervals of 360° / n.

[0043] Step six: Weld the annular joint 12 using a welding robot or manual welding machine. During the welding process, each floating heat absorber 5 will adaptively drift radially along the outer periphery of the annular thin wall 16 under the clamping action of the elastic retaining ring 6. This allows the drifting studs 1 on each floating heat absorber 5 to drift adaptively relative to the length extension line of the corresponding waist-shaped groove 10. This ensures that each floating heat absorber 5 reliably absorbs heat from the outer periphery of the annular thin wall 16 and suppresses irreversible deformation caused by the high welding temperature. After welding, allow it to cool statically. The dynamic heat absorber 5, through the heat-absorbing arc surface 37, adheres to the large area of ​​the b-shaped thin wall 16, rapidly absorbing the heat conducted from the welding heat source to the thin wall and distributing it evenly within the copper body. Utilizing the high thermal conductivity and heat capacity of copper, the peak temperature and temperature gradient of the b-shaped thin wall 16 are significantly reduced, thereby effectively suppressing irreversible plastic deformation caused by local overheating. The elastic retaining ring 6 continuously applies dynamic clamping force throughout the welding process, ensuring that no matter how small the radial thermal expansion and contraction of the b-shaped thin wall 16 occurs, the heat-absorbing arc surface 37 always remains in close contact with it, maintaining a stable heat conduction path.

[0044] Step 7: The detection ends 14 of the n photoelectric ranging sensors 13 arranged in a circular array detect the drift direction and drift value of their respective drift studs 1 relative to the length extension line of the waist-shaped groove 10. The drift direction is recorded with negative values ​​towards the center of the adaptive ring 2 and positive values ​​away from the center of the adaptive ring 2. The drift value is calculated with the initial position collected in step 5 as the reference zero point.

[0045] In computer graphics software, n original nodes 48 are synchronously drifted one-to-one along the radial direction of the reference circular contour 47 according to the drift direction and drift value detected by n photoelectric ranging sensors 13, thus obtaining n drifted nodes 49. The n drifted nodes 49 are fitted into a closed-loop fitting contour 46 using spline curves. The closed-loop fitting contour 46 is equivalent to the virtual contour of the welded joint 12. Then, the closed-loop fitting contour 46 is compared with the reference circular contour 47. If the difference between the closed-loop fitting contour 46 and the reference circular contour 47 exceeds the preset range, it indicates that serious irreversible deformation has occurred after welding, and it needs to be repaired or scrapped. The specific criteria for determining "difference exceeding the preset range" are as follows: Calculate the radial deviation value of each drifted node 49 on the closed-loop fitted contour 46 relative to the reference circular contour 47, and take the arithmetic mean of the sum of the absolute values ​​of all deviation values, i.e., the average radial deviation Δr. When Δr > 0.3mm, it is determined that severe irreversible deformation has occurred after welding, and the annular thin-walled welding quality of the assembled part 7 is unqualified, requiring scrapping or rework. Alternatively, calculate the roundness error value ΔR of the closed-loop fitted contour 46. When ΔR > 0.5mm, it is also determined to be unqualified. This scheme adopts a dual judgment criterion of average radial deviation Δr and roundness error ΔR to ensure that both local deformation and overall contour distortion can be effectively identified.

[0046] One of the key features of this scheme is that even if the adaptive ring 2 shifts horizontally during welding, the resulting closed-loop fitting profile 46, from an overall geometric perspective, can still be well equivalent to the virtual profile of the weld seam 12. This is because the radial coordinate transformation of the drifted node 49 is based on the relative displacement of the drifted stud 1 relative to the waisted groove 10 of the adaptive ring 2, rather than absolute spatial coordinates. The overall horizontal shift of the adaptive ring 2 causes all drifted studs 1 to undergo a uniform and equal overall translation, while the construction of the closed-loop fitting profile 46 depends only on the relative radial positional relationship between the nodes. When all measuring points are superimposed with the same overall shift, the shape and roundness characteristics of the fitted profile remain unchanged; only the overall position is translated, while the radial deviation distribution and roundness error of the profile relative to the reference circular profile 47 are unaffected. Therefore, the overall offset of the adaptive ring 2 will not interfere with the determination of welding deformation, thus ensuring the reliability of the detection method.

[0047] The above description is only a preferred embodiment of the present invention. It should be noted that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A circumferentially fitted heat dissipation system with a thin-walled ring, comprising a rotating part (17) and a rotating part (15); the outer ring of the rotating part (17) has a section of a ring-shaped thin wall (18); the upper section of the rotating part (15) has a section of a ring-shaped thin wall (16); when the rotating part (17) and the rotating part (15) are coaxially assembled into a combined part (7), the ring-shaped thin wall (18) is coaxially fitted and sleeved on the inner side of the ring-shaped thin wall (16), and in the assembled state, the upper ends of the ring-shaped thin wall (18) and the ring-shaped thin wall (16) are flush, and a ring-shaped seam (12) is formed between the upper ends of the ring-shaped thin wall (18) and the ring-shaped thin wall (16). Its features are: The lower end of the combined part (7), which is a horizontal workpiece constraint ring platform (9) and a rotating part (17) and a rotating part (15) are coaxially assembled, is coaxially clamped on the workpiece constraint ring platform (9); there is an annular heat absorber slide (18) above the workpiece constraint ring platform (9). The outer periphery of the b-ring thin wall (16) is surrounded by a number of floating heat absorbers (5) in a circular array at equal intervals, and there is a gap between any two adjacent floating heat absorbers (5); the bottom of each floating heat absorber (5) is slidably supported and in contact with the upper surface of the annular heat absorber slide (18); the side of each floating heat absorber (5) near the b-ring thin wall (16) is a heat-absorbing arc surface (37) that is adapted to the outer periphery of the b-ring thin wall (16), and the heat-absorbing arc surface (37) is heat-transferring and attached to the upper outer periphery of the b-ring thin wall (16).

2. The circumferentially bonded heat dissipation system with thin-walled annular welding according to claim 1, characterized in that: The height of the annular absorber slide (18) is adjustable.

3. The circumferentially bonded heat dissipation system with thin-walled annular welding according to claim 1, characterized in that: The workpiece constraint ring platform (9) is fixedly installed in a circumferential array with several externally threaded support columns (11) extending upward. The upper ends of the externally threaded support columns (11) pass through the stud through holes on the annular heat absorber slide (18). The external threads of each externally threaded support column (11) are fitted with height adjustment nuts (19), and each height adjustment nut (19) supports the annular heat absorber slide (18) upward together.

4. The circumferentially bonded heat dissipation system with thin-walled annular welding according to claim 3, characterized in that: Several floating heat absorbers (5) arranged in a circular array are combined to form an enclosed heat absorber assembly, and an elastic retaining ring (6) is coaxially attached to the outside of the enclosed heat absorber assembly.

5. The circumferentially bonded heat dissipation system with thin-walled annular welding according to claim 4, characterized in that: Each floating heat absorber (5) has an arc-shaped groove (4) on the side away from the b-shaped thin wall (16); the inner side of the elastic ring (6) is stuck in the arc-shaped groove (4) of each floating heat absorber (5), and the elastic ring (6) applies a clamping force towards the b-shaped thin wall (16) to any floating heat absorber (5).

6. The circumferentially bonded heat dissipation system with thin-walled annular welding according to claim 5, characterized in that: The elastic retaining ring (6) is an elastic fluororubber ring or a metal spring ring, and the floating heat absorber (5) is a solid copper body.

7. The circumferentially bonded heat dissipation system with thin-walled annular welding according to claim 6, characterized in that: Each floating heat absorber (5) has a threaded hole (6) at its upper end, and each threaded hole (6) has an adaptive drift stud (1) threaded in it. The enclosed heat absorption assembly composed of several floating heat absorbers (5) is also provided with a horizontal adaptive ring (2) on the upper side of the coaxial sliding support; the adaptive ring (2) is provided with several waist-shaped grooves (10) in a circular array, and the center line extension of each waist-shaped groove (10) along the length direction passes through the center of the adaptive ring (2); each waist-shaped groove (10) corresponds to a drifting stud (1) of a floating heat absorber (5); each drifting stud (1) passes upward through the corresponding waist-shaped groove (10), and the groove width of the waist-shaped groove (10) is consistent with the outer diameter of the drifting stud (1), so the drifting stud (1) can only drift along the center line extension of the length direction of the waist-shaped groove (10).

8. The circumferentially bonded heat dissipation system with thin-walled annular welding according to claim 7, characterized in that: A nut (1a) is integrally provided on the upper end of the drift stud (1); each waist-shaped groove (10) is connected to a mounting groove (42) along the extension line of the center line of the length direction at one end away from the center of the adaptive ring (2), and the mounting groove (42) is inside the adaptive ring (2); each mounting groove (42) is fixedly installed with an electro-optical distance sensor (13) along the length direction; the detection end (14) of the electro-optical distance sensor (13) corresponds to the drift stud (1) passing through the corresponding waist-shaped groove (10); the detection end (14) of the electro-optical distance sensor (13) can detect the amount of drift of the drift stud (1) relative to the extension line of the center line of the waist-shaped groove (10) in real time.

9. The working method of a circumferentially fitted heat dissipation system with thin-walled annular welding according to claim 8, characterized in that: Step 1: The lower end of the combined part (7) formed by coaxially assembling the rotating part (17) and the rotating part (15) is coaxially clamped onto the workpiece constraint ring platform (9). Step 2: Place the prepared floating heat absorbers (5) in a circular array on the upper surface of the annular heat absorber slide (18), and make the heat-absorbing arc surface (37) of each floating heat absorber (5) face the annular thin wall (16); at the same time, adjust the height of the annular heat absorber slide (18) by adjusting each height adjustment nut (19) so that the floating heat absorbers (5) slidably supported on the annular heat absorber slide (18) reach the appropriate height; Step 3: Place the adaptive ring (2) flat on the upper side of the enclosed heat absorption assembly formed by several floating heat absorbers (5); then pass several drift studs (1) downward through their respective waist-shaped grooves (10) and further thread them into the threaded holes (6) on their respective floating heat absorbers (5). Note that during the process of screwing in the drift studs (1), avoid tightening them completely. Step four: The elastic ring (6) is wrapped around the enclosed heat absorption assembly formed by several floating heat absorbers (5), and the inner side of the elastic ring (6) is locked in the arc groove (4) of each floating heat absorber (5). The elastic ring (6) applies a clamping force to any floating heat absorber (5) towards the side of the b-shaped thin wall (16).

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