A superconductor connection structure, processing device and processing method

Abstract

The present invention discloses a connection structure, processing device and processing method of a superconductor, comprising: a connection structure is arranged on an armor, a connection ring is arranged on the outside of the armor, the armor and the connection ring are connected to a terminal box through the connection structure, and a cavity is formed at the connection structure; by designing a connection structure on the end face of the superconductor, a cavity is formed between the superconductor, the connection ring and the terminal box, thereby preventing heat from being quickly transferred to the superconducting cable inside during welding, which would cause damage to the superconducting cable.

Description

Technical Field

[0001] The present invention relates to the technical field of fusion superconducting coils, and in particular to a connection structure, a processing device and a processing method of a superconductor. Background Art

[0002] During the manufacturing process of nuclear fusion superconducting coils, terminal boxes need to be installed at the joints of the superconducting coils to connect the superconducting coils. Currently, the superconducting coil armor and the terminal boxes are connected by welding. During welding, it is necessary to ensure the horizontality of the terminal box to minimize the rotational force that occurs when the superconducting coils are subsequently connected through the terminal box, which may damage the superconducting coils. Since the cost of one sub-coil in the superconducting coil is as high as tens of millions, it will cause huge cost losses.

[0003] The existing method for welding the terminal box to the conductor armor involves manually welding after the superconducting coils are fixed in position. The height and level of the terminal box are adjusted using a platform. The terminal box is aligned with the coils within the armor, and then the welding is performed manually. The assembly accuracy between the armor and the terminal box directly affects the accuracy of the terminal box connection after welding, among other quality issues. Furthermore, because the welding between the armor and the terminal box is concentrated, the high temperature of welding can easily damage the superconducting cable inside, potentially damaging the superconducting coils. Summary of the Invention

[0004] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a superconductor connection structure, processing device and processing method.

[0005] In order to achieve the above-mentioned purpose, the present invention adopts the following technical solution: a connection structure of a superconductor, which is arranged on the armor, the connection structure includes a notch, and a connecting ring is provided on the outside of the armor. The armor and the connecting ring are connected to the terminal box through the connection structure, and a cavity is formed between the armor, the connecting ring and the notch.

[0006] As a further description of the above technical solution: the connection structure includes a notch, at least one or more of the notches are opened at the end face of the armor close to the terminal box, and a first groove is opened on the outer side of the notch.

[0007] As a further description of the above technical solution: a superconducting cable is provided on the inner side of the armor, and the notch ring is arranged on the outer side of the superconducting cable, so that a first protrusion close to the superconducting cable and a second protrusion away from the superconducting cable are formed at the end face of the armor; the notch is parallel to the side surface of the armor, so that the first protrusion and the second protrusion are parallel.

[0008] As a further description of the above technical solution: the first groove is opened at the end surface of the second protrusion close to the terminal box, and the slope direction of the first groove is inclined along the side close to the first protrusion toward the connecting ring.

[0009] As a further description of the above technical solution: the connecting ring is sleeved on the outside of the second protrusion, and a second groove is provided on the side of the connecting ring close to the terminal box with the same slope direction as the first groove, and the first groove and the second groove are staggered.

[0010] As a further description of the above technical solution: a third groove is provided on a side of the terminal box close to the armor, and the slope direction of the third groove is symmetrical to the slope direction of the first groove.

[0011] Also included is a processing device, comprising:

[0012] base;

[0013] The base is provided with a slide rail, and a rotation mechanism is provided on the slide rail so that the rotation mechanism moves horizontally along the setting direction of the slide rail;

[0014] The rotating mechanism is provided with an adjustment mechanism, a tool is installed on the adjustment mechanism, and the base is provided with a positioning mechanism on one side of the slide rail, and the positioning mechanism positions the superconductor.

[0015] The superconductor is arranged at the center of the rotating mechanism, and the tool is driven by the adjustment mechanism to reciprocate along the radial direction of the rotating mechanism to process the connection structure of the superconductor. The rotating mechanism drives the adjustment mechanism to rotate and adjust the processing position so that the tool processes a notch at the end face of the armor and forms a first protrusion and a second protrusion. The first groove is further formed at the second protrusion to obtain the connection structure of the superconductor.

[0016] As a further description of the above technical solution: the rotating mechanism includes a mounting frame, the bottom of the mounting frame is connected to the slide rail, a rotating disk is provided on the mounting frame, a driving assembly is provided on one side of the rotating disk, and a plurality of mounting holes are provided on the rotating disk, through which at least one or more adjustment mechanisms are installed.

[0017] As a further description of the above technical solution: the positioning mechanism includes an alignment component and a chuck component, and the chuck component passes through the rotating mechanism so that the end face of the superconductor extends into the tool for processing the connection structure.

[0018] Also included is a processing method, which is applicable to the connection structure and processing device according to any one of the above technical solutions, comprising:

[0019] S1: Clamp the superconductor armor through the chuck assembly and confirm the current processing position and tool;

[0020] S2: Control the adjustment mechanism and the rotation mechanism to drive the tool to move to a horizontal position of the processing station of the armor end surface;

[0021] S3: Control the rotating mechanism to move along the slide rail toward the processing station, so that the tool moves to the processing station for processing;

[0022] S4: Control the rotating mechanism to move in the opposite direction of the processing station, control the rotating mechanism to rotate, and return to step S3 until all processing stations are completed and proceed to the next step;

[0023] S5: Replace the tool and return to step S1 until the connection structure is processed.

[0024] The above technical solution has the following advantages or beneficial effects:

[0025] 1. By designing a connection structure on the end face of the superconductor, a cavity is formed between the superconductor, the connecting ring and the terminal box, which prevents heat from being quickly transferred to the superconducting cable inside during welding, causing damage to the superconducting cable.

[0026] 2. The connecting ring is adapted to the connection structure of the armor, and there is a relative groove gap between the connecting ring and the groove of the terminal box, which is convenient for subsequent welding with the terminal box. During welding, the structure is fully welded and the connection strength is enhanced.

[0027] 3. Use processing equipment to process the connection structure of the superconductor to avoid the superconductor from being subjected to rotational force during the processing, which may cause damage to the internal superconducting cable. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 A cross-sectional view of the connection structure proposed by the present invention;

[0030] Figure 2 This is a schematic diagram of the structure of the connection between the terminal box and the armor in the present invention;

[0031] Figure 3 A cross-sectional view of the connection between the terminal box and the armor in the present invention;

[0032] Figure 4 This is a schematic diagram of the three-dimensional structure of the processing device proposed by the present invention;

[0033] Figure 5 This is a front view schematic diagram of the structure of the processing device proposed by the present invention;

[0034] Figure 6 A side structural schematic diagram of the processing device proposed by the present invention;

[0035] Figure 7 The structure of the tool in the present invention is shown in FIG. Figure 1 ;

[0036] Figure 8 The structure of the tool in the present invention is shown in FIG. Figure 2 ;

[0037] Figure 9 Flowchart of the processing method proposed by the present invention.

[0038] Legend:

[0039] 1. Armor; 101. Superconducting cable; 102. First protrusion; 103. Second protrusion; 2. Connecting ring; 201. Second groove; 3. Terminal box; 301. Third groove; 4. Notch; 5. First groove; 6. Base; 7. Slide rail; 8. Rotating mechanism; 801. Mounting frame; 802. Rotating disk; 803. Drive assembly; 804. Mounting hole; 9. Adjusting mechanism; 10. Tool; 11. Positioning mechanism; 1101. Alignment assembly; 1102. Chuck assembly. DETAILED DESCRIPTION

[0040] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0041] Reference Figure 1-Figure 3 An embodiment of the present invention provides: a connection structure of a superconductor, the connection structure is arranged on the armor 1, the connection structure includes a notch 4, a connection ring 2 is provided on the outside of the armor 1, the armor 1 and the connection ring 2 are connected to the terminal box 3 through the connection structure, and a cavity is formed between the armor 1, the connection ring 2 and the notch 4.

[0042] In this embodiment, a welding connection is adopted between the terminal box 3 and the armor 1 of the superconductor. The armor 1 is a rectangular structure and is made of 316LN stainless steel. However, the wall thickness of the existing armor 1 is insufficient. Therefore, in this embodiment, a connecting ring 2 is sleeved on the outside of the armor 1 and welded to the terminal box 3 to strengthen the weld. The connecting ring 2 is a rectangular ring adapted to the armor 1. A connecting structure is processed at the end face of one side of the armor 1 of the superconductor. A connecting ring 2 is sleeved on the outside of the armor 1. The connecting ring 2 is aligned with the connecting structure and the terminal box 3 to form a cavity at the connecting structure, so that the root of the weld is not connected to the armor 1 during welding, and heat is prevented from being directly conducted through the superconductor to the superconducting cable 101 on the inside during welding, causing damage to the superconducting cable 101.

[0043] The connection structure includes a notch 4 , at least one or more notches 4 are provided on the end surface of the armor 1 close to the terminal box 3 , and a first groove 5 is provided on the outer side of the notch 4 .

[0044] In this embodiment, the armor 1 is a rectangular structure. To facilitate welding, the notch 4 is a rectangular groove. Specifically, there are four notches 4, each of which is 2 mm wide and 4.5 mm deep. The outer side is 1-2 mm away from the armor surface, preferably 1.5 mm, and a first groove 5 is provided on the outer side of the notch 4. Welding is performed with the terminal box 3 through the first groove 5 to increase the welding area and strengthen the welding connection strength.

[0045] A superconducting cable 101 is provided on the inner side of the armor 1, and a notch 4 is arranged on the outer side of the superconducting cable 101, so that a first protrusion 102 close to the superconducting cable 101 and a second protrusion 103 away from the superconducting cable 101 are formed at the end face of the armor 1; the notch 4 is parallel to the side surface of the armor 1, so that the first protrusion 102 and the second protrusion 103 are parallel.

[0046] In this embodiment, a circular pipe is opened on the inner side of the armor 1, and a superconducting cable 101 is arranged on the inner side. The slot 4 is arranged on the outer side of the superconducting cable 101. When the armor 1 is welded, each side of the armor 1 is provided with a slot 4 parallel thereto. The slot 4 processes the end face of the armor 1 to form a first protrusion 102 and a second protrusion 103, and forms a cavity in the middle. The first protrusion 102 and the second protrusion 103 are parallel, so that the thickness of the armor at the slot 4 is uniform, and the side of the armor 1 is heated evenly during welding.

[0047] A first groove 5 is formed at the end surface of the second protrusion 103 close to the terminal box 3 . The slope of the first groove 5 is inclined along the side close to the first protrusion 102 toward the connecting ring 2 .

[0048] In this embodiment, a first groove 5 is provided on the end face of the second protrusion 103. The angle of the first groove 5 is 25-30°, preferably 27.5°. During assembly, it is convenient to match with the connecting ring 2. The connecting ring 2 is sleeved on the outside of the armor 1. The slope direction of the first groove 5 is inclined along the side close to the first protrusion 102 toward the direction of the connecting ring 2, thereby increasing the welding area between the terminal box 3.

[0049] The connecting ring 2 is sleeved on the outside of the second protrusion 103 . A second groove 201 having the same slope direction as the first groove 5 is provided on the side of the connecting ring 2 close to the terminal box 3 . The first groove 5 and the second groove 201 are staggered.

[0050] In this embodiment, the connecting ring 2 is a rectangular ring that adapts to different armor 1 and terminal box 3. The outer end face is flush with the terminal box 3, and the inner end face is adapted to the armor 1. The gap between the connecting ring 2 and the armor 1 on all four sides is less than 0.2mm, and the gap at the four corners is less than 0.5mm. During assembly, the connecting ring 2 is provided with a second groove 201 on the side closest to the terminal box 3, and the first groove 5 is located on the inner side of the connecting ring 2 to achieve a staggered arrangement. The angle of the second groove 201 is 25-30°, preferably 27.5°.

[0051] Welding is performed on the seam between the connecting ring 2 and the armor 1 on the outside of the armor 1 and away from the first groove 5 to fix the relative position of the connecting ring 2 and the armor 1, thereby avoiding misalignment when welding with the terminal box 3, which would cause torque on the superconducting cable 101 inside when the terminal box 3 is subsequently assembled, thereby damaging the superconducting cable 101.

[0052] A third groove 301 is provided on a side of the terminal box 3 close to the armor 1 , and the slope direction of the third groove 301 is symmetrical to the slope direction of the first groove 5 .

[0053] In this embodiment, the angle of the third groove 301 is 25-30°, preferably 27.5°. The slope direction of the third groove 301 is symmetrical with the slope direction of the first groove 5. The terminal box 3 can be welded to the armor 1 and the connecting ring 2 by full penetration welding.

[0054] Reference Figure 4-Figure 8 , further comprising an embodiment of a processing apparatus, comprising:

[0055] Base 6;

[0056] A slide rail 7 is provided on the base 6, and a rotation mechanism 8 is provided on the slide rail 7 so that the rotation mechanism 8 moves horizontally along the setting direction of the slide rail 7;

[0057] The rotating mechanism 8 is provided with an adjusting mechanism 9, on which a tool 10 is mounted. The base 6 is provided with a positioning mechanism 11 on one side of the slide rail 7, and the positioning mechanism 11 positions the superconductor.

[0058] The superconductor is passed through the center of the rotating mechanism 8. The tool 10 is driven to move back and forth in the radial direction of the rotating mechanism 8 by the adjusting mechanism 9 to process the connection structure of the superconductor. The rotating mechanism 8 drives the adjusting mechanism 9 to rotate and adjust the processing position so that the tool 10 processes the notch 4 at the end face of the armor 1 and forms the first protrusion 102 and the second protrusion 103. The first groove 5 is further formed at the second protrusion 103 to obtain the connection structure of the superconductor.

[0059] In this embodiment, the connection structure at the end face of the superconductor armor 1 is processed by the processing device designed in this application. A slide rail 7 and a positioning mechanism 11 are provided on the base 6. The rotating mechanism 8 approaches or moves away from the positioning mechanism 11 along the setting direction of the slide rail 7. The positioning mechanism 11 clamps and fixes the armor on the outside of the superconductor, and delays to the rotating mechanism 8. The adjusting mechanism 9 is driven by the rotating mechanism 8 to rotate, and the connection structure is processed on the end face of the armor 1 and in different directions of the superconducting cable. The position of the tool is controlled by the adjusting mechanism 9 to adjust the size of the processed connection structure. The rotation direction and rotation speed of the tool 10 are controlled by the motor to process the end face of the armor.

[0060] The connection structure of the superconductor is processed by the processing device to avoid the superconductor from being subjected to rotational force and internal damage, which would cause huge cost waste. The conductor can be kept unchanged. The tool 10 can be used to process the armor through the rotating mechanism 8 to facilitate subsequent welding. The positioning mechanism 11 clamps the four sides of the superconductor to avoid the superconductor from rotating and damaging the internal superconducting cable 101, which would affect the performance of the superconductor.

[0061] The rotating mechanism 8 includes a mounting frame 801, the bottom of which is connected to the slide rail 7, a rotating disk 802 is provided on the mounting frame 801, a driving assembly 803 is provided on one side of the rotating disk 802, and a plurality of mounting holes 804 are provided on the rotating disk 802, through which at least one or more adjustment mechanisms 9 are installed.

[0062] In this embodiment, the mounting frame 801 is arranged on the slide rail 7, and a vertically arranged rotating disk 802 is provided on the other side. A driving component 803 is provided above the rotating disk 802, which is engaged with the rotating disk 802 through gears. The driving component 803 is a stepping motor or a hand-cranked rotating gear, which provides power to the rotating disk 802 and drives the adjustment mechanism 9 to rotate. The rotating disk 802 is a concentric disk with a plurality of mounting holes at equal intervals for installing the adjustment mechanism 9. Specifically, there are two adjustment mechanisms 9 and they are relatively arranged on the rotating disk 802. The connecting structures in two directions can be processed at the same time each time. After processing, the rotating disk 802 is controlled to rotate by the driving component 803, so that the adjustment mechanism 9 is rotated 90° to process the connecting structures in the other two directions. The adjustment mechanism 9 can be specifically an electric telescopic rod with a motor-driven tool 10 installed on the top to adjust the position of the tool 10.

[0063] The positioning mechanism 11 includes an alignment component 1101 and a chuck component 1102 . The chuck component 1102 penetrates the rotating mechanism 8 so that the end face of the superconductor extends into the tool 10 for processing the connection structure.

[0064] In this embodiment, the positioning mechanism 11 includes an alignment component 1101 and a chuck component 1102. The alignment component 1101 includes a platform, and a clamping block is connected to the platform through a screw rod. The superconductor is placed on the platform and the armor of the superconductor is aligned through the clamping block so that the armor is passed through the chuck component 1102. The chuck component 1102 is composed of four circumferentially distributed calipers, which abut the four sides of the armor to clamp the armor and adjust the parallelism and stability of the armor.

[0065] The tool 10 is a T-shaped tool or a tapered tool, which is used for processing the notch and the first groove respectively.

[0066] Reference Figure 9 , also includes an embodiment of a processing method, which is applicable to the connection structure and processing device of any one of the above technical solutions, including:

[0067] S1: Clamp the superconductor armor through the chuck assembly and confirm the current processing position and tool;

[0068] S2: Control the adjustment mechanism and the rotation mechanism to drive the tool to move to the horizontal position of the processing station of the armor end surface;

[0069] S3: Control the rotating mechanism to move along the slide rail toward the processing station, so that the tool moves to the processing station for processing;

[0070] S4: Control the rotating mechanism to move in the opposite direction of the processing station, control the rotating mechanism to rotate, and return to step S3 until all processing stations are completed and proceed to the next step;

[0071] S5: Replace the tool and return to step S1 until the connection structure is processed.

[0072] In this embodiment, the connection structure is machined by first machining the notch, then the first bevel. After clamping the four sides of the armor with a chuck assembly, the machining station is determined. A stylus is used to draw eight lines on the end face of the armor to indicate the inner and outer boundaries of the rectangular groove. A vernier caliper is used to measure the distance from the outer boundary line to the armor side. The result should be within 1-2 mm. After confirming the machining station, the notch cutting tool is installed.

[0073] The control and adjustment mechanism drives the tool to move toward the horizontal position of the end face of the armor, so that the tool and the processing station are at the same horizontal position, and the rotation mechanism is aligned with the processing angle of the processing station to ensure that the armor is in the center of the two processing tools.

[0074] The slide rail is used to adjust the rotation mechanism to adjust the tool's forward direction. The motor is started to control the tool's rotation and start to synchronously process two symmetrical rectangular slots. The processing is divided into two stages: roughing in the first stage and finishing in the second stage. The roughing stage sets the processing depth to 4mm, and the feed amount is controlled at 0.1mm each time. The finishing target processing depth is 0.5mm, and the processing depth per step is 0.1mm / step. After the roughing of the two symmetrical rectangular slots is completed, the rotating disk of the equipment is rotated 90 degrees to process the remaining two symmetrical rectangular slots. After the roughing is completed, finishing is carried out. Repeat the above steps.

[0075] After machining the notch, the tool is replaced to machine the first groove. Groove machining is also divided into two stages: the first stage is rough machining, and the second stage is fine machining. In the rough machining stage, the thickness of each machining is set to 0.15mm, the feed rate is 0.25mm / s, and the target machining thickness is 2.0mm. In the fine machining stage, the thickness of each machining is set to 0.1mm, the feed rate is 0.15mm / s, and the target machining thickness is 0.5mm. Two symmetrical first grooves are machined simultaneously. After the two symmetrical first grooves are roughed, the rotating disk of the equipment is rotated 90 degrees to machine the remaining two symmetrical first grooves. After the rough machining is completed, fine machining is performed. Repeat the above steps.

[0076] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0077] Finally, it should be noted that the above is only a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art can still modify the technical solutions described in the aforementioned embodiments or make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present invention should be included in the scope of protection of the present invention.

Claims

1. A superconductor connection structure, characterized in that: The connecting structure is provided on the armor (1), the connecting structure includes a notch (4), a connecting ring (2) is provided on the outside of the armor (1), the armor (1) and the connecting ring (2) are connected to the terminal box (3) through the connecting structure, and a cavity is formed between the armor (1), the connecting ring (2) and the notch (4); A first groove (5) is formed on the outer side of the notch (4); A superconducting cable (101) is provided on the inner side of the armor (1), and the notch (4) is arranged on the outer side of the superconducting cable (101), so that a first protrusion (102) close to the superconducting cable (101) and a second protrusion (103) away from the superconducting cable (101) are formed at the end face of the armor (1); the notch (4) is parallel to the side surface of the armor (1), so that the first protrusion (102) and the second protrusion (103) are parallel; The connecting ring (2) is sleeved on the outside of the second protrusion (103); a second groove (201) having the same slope direction as the first groove (5) is provided on a side of the connecting ring (2) close to the terminal box (3); the first groove (5) and the second groove (201) are staggered; At least one of the notches (4) is provided on an end surface of the armor (1) close to the terminal box (3); The first groove (5) is provided at the end surface of the second protrusion (103) close to the terminal box (3), and the slope direction of the first groove (5) is inclined along the side close to the first protrusion (102) toward the connecting ring (2); A third groove (301) is provided on a side of the terminal box (3) close to the armor (1), and the slope direction of the third groove (301) is symmetrical to the slope direction of the first groove (5).

2. A processing device, characterized in that: The processing device is applicable to the connection structure according to claim 1, comprising: Base (6); A slide rail (7) is provided on the base (6), and a rotation mechanism (8) is provided on the slide rail (7), so that the rotation mechanism (8) moves horizontally along the setting direction of the slide rail (7); The rotating mechanism (8) is provided with an adjustment mechanism (9), a tool (10) is installed on the adjustment mechanism (9), and the base (6) is provided with a positioning mechanism (11) on one side of the slide rail (7), and the positioning mechanism (11) positions the superconductor. The superconductor is passed through the center of the rotating mechanism (8), and the tool (10) is driven by the adjusting mechanism (9) to reciprocate along the radial direction of the rotating mechanism (8) to process the connection structure of the superconductor. The rotating mechanism (8) drives the adjusting mechanism (9) to rotate and adjust the processing position so that the tool (10) processes the notch (4) at the end face of the armor (1) and forms a first protrusion (102) and a second protrusion (103). The first groove (5) is further processed at the second protrusion (103) to obtain the connection structure of the superconductor.

3. The processing device according to claim 2, characterized in that: The rotating mechanism (8) includes a mounting frame (801), the bottom of the mounting frame (801) is connected to the slide rail (7), a rotating disk (802) is provided on the mounting frame (801), a driving assembly (803) is provided on one side of the rotating disk (802), and a plurality of mounting holes (804) are provided on the rotating disk (802), and at least one of the adjustment mechanisms (9) is installed through the mounting holes (804).

4. The processing device according to claim 2, characterized in that: The positioning mechanism (11) comprises an alignment component (1101) and a chuck component (1102), wherein the chuck component (1102) passes through the rotating mechanism (8) so that the end face of the superconductor extends into the tool (10) for processing the connection structure.

5. A processing method, characterized in that: The processing method is applicable to the processing device according to any one of claims 2 to 4, comprising: S1: Clamp the superconductor armor through the chuck assembly and confirm the current processing position and tool; S2: Control the adjustment mechanism and the rotation mechanism to drive the tool to move to the horizontal position of the processing station of the armor end surface; S3: Control the rotating mechanism to move along the slide rail toward the processing station, so that the tool moves to the processing station for processing; S4: Control the rotating mechanism to move in the opposite direction of the processing station, control the rotating mechanism to rotate, and return to step S3 until all processing stations are completed and proceed to the next step; S5: Replace the tool and return to step S1 until the connection structure is processed.

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