A precision superconducting cavity processing and testing system and a die forging process thereof

By using a precision superconducting cavity machining and testing system and its die forging process, the problem of insufficient plastic deformation of superconducting cavities has been solved, enabling high-quality mass production, reducing production costs, and improving enterprise efficiency.

CN115846554BActive Publication Date: 2026-03-31SHANGHAI DIANJI UNIV
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-28
Publication Date
2026-03-31

AI Technical Summary

Technical Problem

In the current manufacturing process of superconducting cavities, the cavities cannot undergo sufficient plastic deformation and are subject to elastic deformation again after processing, resulting in a low pass rate and unusable cavities.

Method used

A precision superconducting cavity processing and inspection system is adopted, including a turret-type mold automatic switching device, forging equipment, and a superconducting cavity deformation detection device. Through the forging process, the superconducting cavity is fully plastically deformed and elastic deformation is reduced. The system includes components such as a special mold for superconducting cavities, a detection base, a strain detection ring, and a hydraulic cylinder, realizing the automated control of the forging, precision forging, and punching processes.

Benefits of technology

This improved the product quality of the superconducting cavity, reduced production costs, enhanced the company's production efficiency and competitiveness, and ensured the product qualification rate of mass production.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a precision superconducting cavity processing and detecting system and a die forging process, which comprises a turret type die automatic switching device, a die forging equipment, a superconducting cavity special die and a superconducting cavity deformation detecting device; the turret type die automatic switching device is used for carrying the superconducting cavity special die; the die forging equipment is used for die forging a blank placed in the superconducting cavity special die; and the superconducting cavity deformation detecting device is used for detecting the punched superconducting cavity after die forging; the superconducting cavity deformation detecting device comprises a base, a control box is arranged in the base, and a superconducting cavity supporting convex block for placing the punched superconducting cavity is arranged on the base; the superconducting cavity supporting convex block comprises a body, and a first strain detecting ring, a second strain detecting ring, a third strain detecting ring, a fourth strain detecting ring and a fifth strain detecting ring are sequentially arranged on the body. The application has the advantages of improving product quality and reducing production cost.
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Description

Technical Field

[0001] This invention relates to the field of mechanical engineering technology, and in particular to a precision superconducting cavity machining and testing system and its forging process. Background Technology

[0002] Superconducting cavities are the core components of large particle accelerators, primarily converting stored electromagnetic energy into the kinetic energy of charged particles. While niobium is the preferred material for developing superconducting cavities, the exploration and testing of various niobium alloys and new materials are also research directions.

[0003] Extensive case studies revealed that:

[0004] Currently, the manufacturing of superconducting cavities often involves basic forming processes such as stamping and forging. However, due to factors such as stamping and forging equipment and processes, the yield rate is often low. The superconducting cavity cannot undergo sufficient plastic deformation and may undergo elastic deformation again after processing, rendering it unusable. Summary of the Invention

[0005] The purpose of this invention is to overcome the shortcomings of existing technologies and provide a precision superconducting cavity processing and testing system and its forging process. This system enables the superconducting cavity to undergo sufficient plastic deformation and maintain its shape, minimizing elastic deformation, thereby improving product quality and providing guidance for mass production in enterprises. It also reduces production costs and enhances enterprise efficiency and competitiveness.

[0006] The objective of this invention is achieved through the following technical solution:

[0007] A precision superconducting cavity processing and inspection system, comprising:

[0008] The invention comprises a turret-type die automatic switching device, a die forging equipment, a superconducting cavity special die, and a superconducting cavity deformation detection device; the turret-type die automatic switching device is used to carry the superconducting cavity special die, the die forging equipment is used to forge the blank placed in the superconducting cavity special die, and the superconducting cavity deformation detection device is used to detect the punched superconducting cavity after die forging.

[0009] The superconducting cavity deformation detection device includes a detection base, inside which is a control box, and on which are superconducting cavity support protrusions for placing punched superconducting cavities.

[0010] Furthermore, the superconducting cavity support protrusion includes a body, on which a first strain detection ring, a second strain detection ring, a third strain detection ring, a fourth strain detection ring, and a fifth strain detection ring are sequentially arranged.

[0011] Furthermore, the turret-type mold automatic switching device includes a switching base, a rotating column rotatably connected to the switching base, an air pipe column on the switching base, a first jet nozzle installed at the extended end of the air pipe column, a turret arm fixed to the upper end of the rotating column, a control box at the upper end of the connection of the turret arm, screws respectively installed on the turret arm, three servo drive motors installed in the control box, each axially connected to a screw, a movable clamping block screwed onto the screw, a fixed clamping block installed at the outer end of the movable clamping block, a positioning port opened on the turret arm, the positioning port being located between the fixed clamping block and the movable clamping block, and the positioning port being adapted to the superconducting cavity special mold.

[0012] Furthermore, the forging equipment includes a forging base, an upper housing is fixedly connected to the forging base, a hydraulic cylinder and a first air compressor are installed inside the upper housing, a power head is fixed to the output end of the hydraulic cylinder, a second jet head is fixed to the output end of the first air compressor, and a lower mold positioning hole is opened on the forging base, the lower mold positioning hole is adapted to the special mold for superconducting cavity.

[0013] Furthermore, the special mold for the superconducting cavity includes a lower mold capable of closing, a rough forging upper mold, and a fine forging upper mold. The lower mold has a lower mold cavity, and the lower mold cavity has an outwardly protruding positioning post in the middle. The rough forging upper mold includes a first upper template, a first lower positioning post fixed to the upper side of the first upper template, a first upper positioning post fixed to the upper side of the first lower positioning post, and a first mold core fixed to the lower side of the first upper template. The fine forging upper mold includes a second upper template, a second lower positioning post fixed to the upper side of the second upper template, a second upper positioning post fixed to the upper side of the second lower positioning post, and a second mold core fixed to the lower side of the second upper template.

[0014] Furthermore, the volume of the second mold core is larger than that of the first mold core, the lower end of the first mold core is a raised arc-shaped structure, and the lower end of the second mold core is a raised cylindrical structure.

[0015] Furthermore, it also includes a punching tool that works in conjunction with the lower die. The punching tool includes a third upper positioning post, a third lower positioning post fixed to the lower side of the third upper positioning post, and a punching head fixed to the lower end of the third lower positioning post. The punching head is adapted to the inner cavity of the positioning post.

[0016] Furthermore, a motor and a second air compressor are installed inside the switching base, the rotating column is fixed to the output end of the motor, and the output end of the second air compressor is connected to the air pipe column.

[0017] A die forging process for a precision superconducting cavity machining and testing system includes the following steps:

[0018] S1. Prepare the raw material:

[0019] The blank is placed in a heating furnace and heated to 100±5 degrees Celsius to facilitate subsequent forging processing;

[0020] S2. Preparation of special mold for superconducting cavity:

[0021] The lower die, rough forging upper die, fine forging upper die, and punching tool of the superconducting cavity special mold are placed in the working preparation position respectively; the lower die is placed on the worktable of the forging equipment, and the positioning pin is inserted into the positioning hole of the lower die and locked to ensure that the lower die is in a tight installation state; the rough forging upper die is installed on the turret-type mold automatic switching device, the first lower positioning pin is attached to the positioning port, and the upper surface of the first upper platen is attached to the lower surface of the turret arm. The servo motor in the control box works, drives the screw to rotate, and drives the moving clamping block to move towards the fixed clamping block, and together with the fixed clamping block, clamps the first lower positioning pin, thereby clamping the rough forging upper die; the fine forging upper die and the punching tool are also installed on the turret-type mold automatic switching device in the same way, and then the rough forging upper die, fine forging upper die, and punching tool are switched through the turret-type mold automatic switching device;

[0022] S3. Non-contact cleaning of molds:

[0023] The motor inside the switching base rotates, which in turn drives the rotating column to rotate the turret arms and the clamped dies together. When the rough forging upper die rotates above the first jet nozzle, the second air compressor inside the switching base starts working, transmitting high-pressure gas through the air pipe column and spraying it upward through the first jet nozzle to thoroughly blow away the dust and particles on the rough forging upper die. The finish forging upper die and the punching tool are cleaned in the same way, and the lower die is thoroughly cleaned by the second jet nozzle.

[0024] S4. Processing preparation:

[0025] The relative position between the turret-type die automatic switching device and the forging equipment is determined, and the device is in a working preparation state: the heated blank is placed in the working position on the lower die; the turret arm rotates, and the turret arm carries the rough forging upper die to the bottom of the power head. The first upper positioning column is placed coaxially with the power head, and the upper surface of the first upper positioning column is fixedly connected to the lower surface of the power head. The connection method is electromagnetic locking. Then the clamping block is moved back, the rough forging upper die is released, and the turret arm rotates away from the forging working area.

[0026] S5, rough forging of superconducting cavity:

[0027] The hydraulic device inside the upper chamber works, starting the slow pressing and rotation mode, pushing the power head to move slowly downward and rotate slowly, driving the rough forging upper die to move slowly downward and rotate, rotating and extruding the blank, continuously rotating and extruding slowly, so that the blank is fully plastically deformed, held for 5 minutes, and then demolded, the power head drives the rough forging upper die to return to its original position, at this time the rough forging superconducting cavity is obtained.

[0028] S6, Superconducting cavity precision forging:

[0029] The coarse forging superconducting cavity is located in the working position on the lower die. The turret arm rotates to the coarse forging upper die, and the positioning port fits with the lower positioning column. The moving clamping block moves towards the fixed clamping block, squeezing the lower positioning column, thereby re-clamping the coarse forging upper die. At this time, the electromagnetic force is removed, and the power head loses connection with the coarse forging upper die. The rotating column rotates, driving the turret arm to rotate, so that the coarse forging upper die leaves the working area and the fine forging upper die comes to the die forging working area, and is similarly fixedly connected to the power head.

[0030] The hydraulic device inside the upper chamber works, starting the slow downward pressing mode, pushing the power head to move slowly downward, driving the fine forging upper die to move slowly downward, squeezing the rough forging superconducting cavity, and continuing to squeeze slowly, so that the rough forging superconducting cavity is further fully plastically deformed and the thickness is further compressed. After holding for 5 minutes, the die is demolded, and the power head drives the fine forging upper die to return to its original position. At this time, the fine forging superconducting cavity is obtained.

[0031] S7, Superconducting cavity punching:

[0032] The automatic switching device for turret molds works in the same way as described above: remove the upper precision forging mold, replace the upper punching tool, and start the punching operation.

[0033] The hydraulic device inside the upper chamber works, starts the rapid stamping mode, pushes the power head to move downwards quickly, drives the punching cutter to move downwards quickly, punches the precision forged superconducting cavity, and then returns to the upper chamber. The external robotic arm suction cup removes the punched-down waste material, and at this time the punched superconducting cavity is obtained.

[0034] S8. Superconducting cavity deformation detection:

[0035] The punched superconducting cavity is placed on the superconducting cavity support protrusion of the superconducting cavity deformation detection device. The first strain detection ring, the second strain detection ring, the third strain detection ring, the fourth strain detection ring, and the fifth strain detection ring start working, recording the strain of each resistance strain gauge at this time, and storing the data in the control box. After eight hours of settling, the superconducting cavity support protrusion can continue to place the punched superconducting cavity for operation.

[0036] After eight hours of rest, the first, second, third, fourth, and fifth strain gauges resume operation, recording the strain of each strain gauge and storing the data in the control box for comparison. If the comparison results show that the values ​​at each point are consistent or the difference is within the allowable range, the punched superconducting cavity is deemed qualified, having undergone sufficient plastic deformation without significant elastic deformation, and can be output to the next stage for processing. Otherwise, the punched superconducting cavity is deemed unqualified, exhibiting unacceptable elastic deformation, and needs to return to S6 for re-inspection according to the process steps. If the punched superconducting cavity still fails the inspection after two reprocessing steps, it is deemed a completely unqualified product and must undergo the product scrapping process.

[0037] S9. Subsequent processing and product shaping:

[0038] For qualified punched superconducting cavities, they are transported to the next stage for machining, ultimately forming the final superconducting cavity product.

[0039] The beneficial effects of this invention are:

[0040] The present invention proposes a precision superconducting cavity processing and testing system and its forging process, which enables the superconducting cavity to undergo sufficient plastic deformation and maintain its shape while minimizing elastic deformation, thereby improving product quality. It also provides guidance for enterprises in mass production, reducing production costs and enhancing their efficiency and competitiveness. Attached Figure Description

[0041] Figure 1 This is a schematic diagram of the structure of the turret-type mold automatic switching device when the mold is mounted;

[0042] Figure 2 This is a schematic diagram of the turret-type automatic mold switching device when no mold is installed;

[0043] Figure 3 This is a structural schematic diagram of a die forging equipment;

[0044] Figure 4 This is a schematic diagram of the structure of the lower die and the rough forging upper die;

[0045] Figure 5 This is a schematic diagram of the lower mold structure;

[0046] Figure 6 This is a schematic diagram of the lower mold structure;

[0047] Figure 7 This is a schematic diagram of the rough forging upper die;

[0048] Figure 8 This is a schematic diagram of the structure of the precision forging upper die;

[0049] Figure 9 This is a schematic diagram of the punching tool;

[0050] Figure 10 This is a diagram showing the working state of the upper and lower dies in rough forging.

[0051] Figure 11 This is a diagram showing the working state of the upper and lower forging dies;

[0052] Figure 12 This is the parting diagram of the upper and lower dies for rough forging;

[0053] Figure 13 It is the mold assembly diagram of the upper and lower forging dies;

[0054] Figure 14 This is a diagram showing the working state of a punching tool;

[0055] Figure 15 Schematic diagram of a superconducting cavity deformation detection device;

[0056] Figure 16 This is a schematic diagram of the structure of the superconducting cavity support protrusion;

[0057] Figure 17 Working status diagram of the superconducting cavity deformation detection device;

[0058] Figure 18 This is a structural diagram of the blank material;

[0059] Figure 19 Schematic diagram of the structure of a rough-forged superconducting cavity;

[0060] Figure 20 Schematic diagram of the structure of a precision-forged superconducting cavity;

[0061] Figure 21 Schematic diagram of the punched superconducting cavity;

[0062] Figure 22 A schematic diagram of the final product of the superconducting cavity. Detailed Implementation

[0063] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. The components of the embodiments of the present invention described and shown in the accompanying drawings can generally be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0064] In this embodiment, as Figures 1 to 22 As shown, a precision superconducting cavity processing and inspection system includes a turret-type mold automatic switching device 100, a forging equipment 200, a superconducting cavity special mold 300, and a superconducting cavity deformation detection device 400; the turret-type mold automatic switching device 100 is used to carry the superconducting cavity special mold 300, the forging equipment 200 is used to forge the blank 500 placed in the superconducting cavity special mold 300, and the superconducting cavity deformation detection device 400 is used to inspect the punched superconducting cavity 800 after forging;

[0065] The superconducting cavity deformation detection device 400 includes a detection base 401, a control box is provided inside the detection base 401, and superconducting cavity support protrusions 402 / 403 / 404 / 405 for placing the punched superconducting cavity 800 are provided on the detection base 401.

[0066] In this embodiment, the final superconducting cavity product 900 is formed by combining several punched superconducting cavities 800. The punched superconducting cavity 800 is funnel-shaped, its connecting slope is arc-shaped, and its bottom end has a round hole.

[0067] In this embodiment, the superconducting cavity support protrusion 402 includes a body 4021, on which a first strain detection ring 4022, a second strain detection ring 4023, a third strain detection ring 4024, a fourth strain detection ring 4025, and a fifth strain detection ring 4026 are sequentially arranged.

[0068] In this embodiment, in the cavity deformation detection device 400, the control box is built into the detection base 401; the first strain detection ring 4022, the second strain detection ring 4023, the third strain detection ring 4024, the fourth strain detection ring 4025, and the fifth strain detection ring 4026 are arranged evenly on the upper surface of the detection base 401; the outer contour shape and size of the superconducting cavity supporting protrusions 402 / 403 / 404 / 405 are consistent with the inner cavity contour of the punched superconducting cavity 800, so that the punched superconducting cavity 800 can be fitted onto the superconducting cavity supporting protrusions 402 / 403 / 404 / 405; the first strain detection ring 4022, the second strain detection ring 4023, the third strain detection ring 4024, the fourth strain detection ring 4026 are arranged evenly on the upper surface of the detection base 401; 025 and the fifth strain detection ring 4026 are respectively attached to the outer surface of the superconducting cavity support protrusion 402. Taking the first strain detection ring 4022 as an example, it is composed of several small sheet-like resistance strain gauges, which are evenly arranged in a circle at a certain interval and attached to the body 4021. At each resistance strain gauge attachment point, there is a recess of the same shape on the back of the body 4021 to prevent the resistance strain gauge from protruding too much from the outer surface of the body 4021. The outermost surface of the resistance strain gauge is covered with a very thin layer of wear-resistant film material to protect the resistance strain gauge. At the same time, each recess of the body 4021 has a small hole for wiring, through which the wires of the resistance strain gauge are passed and connected to the control box inside the detection base 401.

[0069] This embodiment is further configured as follows: the turret-type mold automatic switching device 100 includes a switching base 101, a rotating column 102 rotatably connected to the switching base 101, an air pipe column 103 also provided on the switching base 101, a first jet nozzle 1031 installed at the extension end of the air pipe column 103, turret arms 1041 / 1042 / 1043 fixed at the upper end of the rotating column 102, a control box 105 provided at the upper end of the connection of the turret arms 1041 / 1042 / 1043, screws 1061 / 1071 / 1081 respectively provided on the turret arms 1041 / 1042 / 1043, and three servo drive motors provided inside the control box 105, which are respectively connected to the screws The screws 1061 / 1071 / 1081 are connected by a shaft. A movable clamping block 1062 / 1072 / 1082 is screwed onto the screw 1061 / 1071 / 1081. A fixed clamping block 1064 / 1074 / 1084 is provided on the outer end of the movable clamping block 1062 / 1072 / 1082. A positioning port 1063 / 1073 / 1083 is opened on the turret arm 1041 / 1042 / 1043. The positioning port 1063 / 1073 / 1083 is located between the fixed clamping block 1064 / 1074 / 1084 and the movable clamping block 1062 / 1072 / 1082. The positioning port 1063 / 1073 / 1083 is adapted to the special mold 300 for the superconducting cavity.

[0070] In this embodiment, the turret arm 1041 and the turret arm 1042 are located on the same straight axis, and the included angle between the turret arm 1043 and the turret arm 1041 and the turret arm 1042 is 90 degrees.

[0071] This embodiment is further configured such that: the forging equipment 200 includes a forging base 201, an upper housing 202 is fixedly connected to the forging base 201, a hydraulic cylinder and a first air compressor are provided inside the upper housing 202, a power head 2022 is fixed to the output end of the hydraulic cylinder, a second jet head 2023 is fixed to the output end of the first air compressor, and a lower mold positioning hole 2011 is provided on the forging base 201, the lower mold positioning hole 2011 is adapted to the superconducting cavity special mold 300.

[0072] This embodiment is further configured as follows: the special mold 300 for the superconducting cavity includes a lower mold 301 capable of closing, a rough forging upper mold 302, and a fine forging upper mold 303. The lower mold 301 has a lower mold cavity 3012 formed inside, and the lower mold cavity 3012 has an outwardly protruding positioning post 3011 in the middle. The rough forging upper mold 302 includes a first upper template 3023, a first lower positioning post 3022 fixed on the upper side of the first upper template 3023, a first upper positioning post 3021 fixed on the upper side of the first lower positioning post 3022, and a first mold core 3024 fixed on the lower side of the first upper template 3023. The fine forging upper mold 303 includes a second upper template 3033, a second lower positioning post 3032 fixed on the upper side of the second upper template 3033, a second upper positioning post 3031 fixed on the upper side of the second lower positioning post 3032, and a second mold core 3034 fixed on the lower side of the second upper template 3033.

[0073] In this embodiment, the volume of the second mold core 3034 is larger than that of the first mold core 3024, the lower end of the first mold core 3024 is a raised arc-shaped structure, and the lower end of the second mold core 3034 is a raised cylindrical structure.

[0074] In this embodiment, the second mold core 3034 has a different shape from the first mold core 3024. The protruding end of the first mold core 3024 is spherical, while the protruding end of the second mold core 3034 is planar.

[0075] This embodiment is further configured to include a punching tool 304 that works in conjunction with the lower die 301. The punching tool includes a third upper positioning post 3041, a third lower positioning post 3042 fixed to the lower side of the third upper positioning post 3041, and a punching head 3043 fixed to the lower end of the third lower positioning post 3042. The punching head 3043 is adapted to the inner cavity of the positioning post 3011.

[0076] This embodiment is further configured such that: a motor and a second air compressor are installed inside the switching base 101, the rotating column 102 is fixed to the output end of the motor, and the output end of the second air compressor is connected to the air pipe column 103.

[0077] A die forging process for a precision superconducting cavity machining and testing system includes the following steps:

[0078] S1. Prepare the raw material:

[0079] The blank material 500 is placed in a heating furnace and heated to 100±5 degrees Celsius to facilitate subsequent forging processing; the blank material 500 is generally a metal niobium plate or a niobium alloy;

[0080] S2. Preparation of special mold for superconducting cavity:

[0081] The lower die 301, rough forging upper die 302, fine forging upper die 303, and punching tool 304 of the superconducting cavity special mold 300 are placed in their respective working positions. The lower die 301 is placed on the worktable of the forging equipment 200, and the positioning pin 3011 is inserted into the positioning hole 2011 of the lower die and locked to ensure that the lower die 301 is in a tight installation state. The rough forging upper die 302 is installed on the turret-type mold automatic switching device 100, the first lower positioning pin 3022 is in contact with the positioning port 1073, and the upper surface of the first upper die plate 3023 is in contact with the turret. The lower surface of arm 1042 is in contact with the servo motor inside the control box 105, which drives the screw 1071 to rotate, causing the movable clamping block 1072 to move towards the fixed clamping block 1074, and together with the fixed clamping block 1074, clamp the first lower positioning post 3022, thereby clamping the rough forging upper die 302; the fine forging upper die 303 and the punching tool 304 are also similarly installed on the turret-type die automatic switching device 100, and then the rough forging upper die 302, the fine forging upper die 303 and the punching tool 304 are switched through the turret-type die automatic switching device 100;

[0082] S3. Non-contact cleaning of molds:

[0083] The motor inside the switching base 101 rotates, which in turn drives the rotating column 102 to rotate each turret arm and the clamped mold together. When the rough forging upper die 302 rotates above the first jet nozzle 1031, the second air compressor inside the switching base 101 starts working, transmitting high-pressure gas through the air pipe column 103 and spraying it upward through the first jet nozzle 1031, thoroughly blowing away the dust and particles on the rough forging upper die 302. The fine forging upper die 303 and the punching tool 304 are cleaned in the same way, and the lower die 301 is thoroughly cleaned by the second jet nozzle 2023.

[0084] S4. Processing preparation:

[0085] The relative position between the turret-type die automatic switching device 100 and the forging equipment 200 is determined, and the device is in a working preparation state: the heated blank 500 is placed in the working position on the lower die 301; the turret arm rotates, and the turret arm 1042 carries the rough forging upper die 302 to the bottom of the power head 2022. The first upper positioning column 3021 is placed coaxially with the power head 2022, and the upper surface of the first upper positioning column 3021 is fixedly connected to the lower surface of the power head 2022. The connection method is electromagnetic locking. Then the clamping block 1072 is moved back, the rough forging upper die 302 is released, and the turret arm rotates away from the forging working area.

[0086] S5, rough forging of superconducting cavity:

[0087] The hydraulic device inside the upper housing 202 operates, activating the slow downward pressing and rotation mode. This pushes the power head 2022 downward and rotates slowly, causing the rough forging upper die 302 to move downward and rotate slowly, rotating and extruding the blank 500. Continuous slow rotation and extrusion allow the blank 500 to undergo sufficient plastic deformation, compressing it to the required size. Figure 12 The mold is held in the closed state as shown for 5 minutes, then demolded. The power head 2022 drives the rough forging upper die 302 to return to its original position, resulting in the rough forging superconducting cavity 700. Figure 19 As shown.

[0088] S6, Superconducting cavity precision forging:

[0089] The rough forging superconducting cavity 700 is located in the working position on the lower die 301. The turret arm 1042 rotates to the rough forging upper die 302. The positioning port 1073 fits with the lower positioning column 3022. The moving clamping block 1072 moves towards the fixed clamping block 1074, squeezing the lower positioning column 3022, thereby re-clamping the rough forging upper die 302. At this time, the electromagnetic force is removed, and the power head 2022 loses connection with the rough forging upper die 302. The rotating column 102 rotates, driving the turret arm to rotate, causing the rough forging upper die 302 to leave the working area, and causing the fine forging upper die 303 to come to the forging working area. Similarly, it is fixedly connected to the power head 2022.

[0090] The hydraulic device inside the upper housing 202 operates, activating the slow-pressing mode. This pushes the power head 2022 downwards at a slow speed, causing the precision forging upper die 303 to move downwards slowly, compressing the rough forging superconducting cavity 700. Continuous slow compression further plastically deforms the rough forging superconducting cavity 700, compressing its thickness until it reaches a point where... Figure 13 The mold is held in the closed state as shown for 5 minutes, then demolded. The power head 2022 drives the precision forging upper mold 303 to return to its original position, resulting in the precision forging superconducting cavity 810. Figure 20 As shown.

[0091] S7, Superconducting cavity punching:

[0092] The turret-type mold automatic switching device 100 works in the same way as described above. It removes the fine forging upper mold 303, replaces the upper punching tool 304, and starts the punching operation.

[0093] The hydraulic device inside the upper housing 202 works, starts the rapid stamping mode, pushes the power head 2022 to move downwards quickly, drives the punching cutter 304 to move downwards quickly, punches the precision forged superconducting cavity 810, and then returns to the upper position. The external robotic arm suction cup removes the punched-down waste material, and at this time the punched superconducting cavity 800 is obtained.

[0094] S8. Superconducting cavity deformation detection:

[0095] The punched superconducting cavity 800 is placed on the superconducting cavity support protrusion 402 of the superconducting cavity deformation detection device 400. The first strain detection ring 4022, the second strain detection ring 4023, the third strain detection ring 4024, the fourth strain detection ring 4025, and the fifth strain detection ring 4026 start working, recording the strain of each resistance strain gauge at this time, and storing the data in the control box. After eight hours of settling, the superconducting cavity support protrusions 403 / 404 / 405 can continue to place the punched superconducting cavity 800 for operation.

[0096] After standing for eight hours, the first strain gauge 4022, the second strain gauge 4023, the third strain gauge 4024, the fourth strain gauge 4025, and the fifth strain gauge 4026 start working again, recording the strain of each resistance strain gauge at this time and storing the data in the control box for comparison. If the comparison results show that the values ​​at each point are consistent or the difference is within the allowable range, the punched superconducting cavity 800 is judged to be qualified, having undergone sufficient plastic deformation and without obvious elastic deformation, and can be output to the next stage for processing. Otherwise, the punched superconducting cavity 800 is judged to be unqualified, having exhibited unacceptable elastic deformation, and needs to return to S6 and be tested again according to the process steps. If the punched superconducting cavity 800 is still unqualified after being reprocessed twice, plus the first time, for a total of three processing steps, it is judged to be a completely unqualified product and should be processed for scrapping.

[0097] S9. Subsequent processing and product shaping:

[0098] For qualified punched superconducting cavities of 800mm, the material is transported to the next stage for machining, surface chemical treatment, and other procedures. Finally, through precision welding, it forms a shape similar to... Figure 22 The superconducting cavity final product 900 shown is formed by combining and fixing a plurality of punched superconducting cavities 800.

[0099] In the description of this invention, it should be noted that the terms "upper," "lower," "inner," "outer," "left," and "right," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this invention is in use, or the orientation or positional relationship commonly understood by those skilled in the art. These terms are used only for the convenience of describing this invention and for simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first," "second," etc., are used only to distinguish descriptions and should not be construed as indicating or implying relative importance. In the description of this invention, it should also be noted that, unless otherwise explicitly specified and limited, terms such as "set" and "connect" should be interpreted broadly. For example, "connection" 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 a connection within two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

Claims

1. A precision superconducting cavity processing inspection system, comprising: Include: Rotary die automatic switching device (100), die forging equipment (200), superconducting cavity special die (300) and superconducting cavity deformation detection device (400); The rotary die automatic switching device (100) is used for carrying the superconducting cavity special die (300), the superconducting cavity special die (300) includes a lower die (301) that can be closed, a rough forging upper die (302) and a fine forging upper die (303), further including a punching cutter (304) used in cooperation with the lower die (301), the die forging equipment (200) is used for the rough forging of the blank material (500) placed in the superconducting cavity special die (300), the superconducting cavity deformation detection device (400) is used for detecting the punched superconducting cavity (800) after die forging; The superconducting cavity deformation detection device (400) includes a detection base (401), a control box is arranged inside the detection base (401), the detection base (401) is provided with a superconducting cavity supporting block (402 / 403 / 404 / 405) for placing the punched superconducting cavity (800), the superconducting cavity supporting block (402) includes a body (4021), the body (4021) is sequentially provided with a first strain detection ring (4022), a second strain detection ring (4023), a third strain detection ring (4024), a fourth strain detection ring (4025) and a fifth strain detection ring (4026); The rotary die automatic switching device (100) includes a switching base (101), a rotating column (102) is rotatably connected to the switching base (101), a gas pipe column (103) is further arranged on the switching base (101), a first jet head (1031) is mounted at the extension end of the gas pipe column (103), a turret arm (1041 / 1042 / 1043) is fixed to the upper end of the rotating column (102), a control box (105) is arranged at the upper end of the connection of the turret arm (1041 / 1042 / 1043), a screw rod (1061 / 1071 / 1081) is arranged on the turret arm (1041 / 1042 / 1043) respectively, three servo drive motors are arranged in the control box (105), which are respectively connected with the screw rod (1061 / 1071 / 1081) by shaft, a moving clamping block (1062 / 1072 / 1082) is rotatably connected to the screw rod (1061 / 1071 / 1081), a fixed clamping block (1064 / 1074 / 1084) is arranged at the outer side end of the moving clamping block (1062 / 1072 / 1082), a positioning opening (1063 / 1073 / 1083) is formed in the turret arm (1041 / 1042 / 1043), the positioning opening (1063 / 1073 / 1083) is located between the fixed clamping block (1064 / 1074 / 1084) and the moving clamping block (1062 / 1072 / 1082), and the positioning opening (1063 / 1073 / 1083) is adapted to the superconducting cavity special die (300).

2. The system of claim 1, wherein: The die forging equipment (200) comprises a die forging base (201), an upper box body (202) is fixedly connected on the die forging base (201), a hydraulic cylinder and a first air compressor are arranged in the upper box body (202), a power head (2022) is fixed to an output end of the hydraulic cylinder, a second air jet head (2023) is fixed to an output end of the first air compressor, a lower die positioning hole (2011) is formed in the die forging base (201), and the lower die positioning hole (2011) is matched with a superconducting cavity special die (300).

3. The system of claim 2, wherein: The lower die (301) is formed with a lower die cavity (3012), and the lower die cavity (3012) is provided with a positioning column (3011) protruding outward in the middle; the rough forging upper die (302) comprises a first upper die plate (3023), the first upper die plate (3023) is fixedly connected with a first lower positioning column (3022) on the upper side, the first lower positioning column (3022) is fixedly connected with a first upper positioning column (3021) on the upper side, and the first upper die plate (3023) is fixedly connected with a first die core (3024) on the lower side; the finish forging upper die (303) comprises a second upper die plate (3033), the second upper die plate (3033) is fixedly connected with a second lower positioning column (3032) on the upper side, the second lower positioning column (3032) is fixedly connected with a second upper positioning column (3031) on the upper side, and the second upper die plate (3033) is fixedly connected with a second die core (3034) on the lower side.

4. The system of claim 3, wherein: The volume of the second die core (3034) is greater than that of the first die core (3024), the lower end of the first die core (3024) is a protruding arc structure, and the lower end of the second die core (3034) is a protruding column structure.

5. The system of claim 4, wherein: The punching cutter comprises a third upper positioning column (3041), the third upper positioning column (3041) is fixedly connected with a third lower positioning column (3042) on the lower side, the third lower positioning column (3042) is fixedly connected with a punching cutter head (3043) on the lower end, and the punching cutter head (3043) is matched with the inner cavity of the positioning column (3011).

6. The system of claim 5, wherein: The switching base (101) is installed with a motor and a second air compressor, the rotating vertical column (102) is fixed to the output end of the motor, and the output end of the second air compressor is connected with the air pipe vertical column (103).

7. A swaging process for a precision superconducting cavity processing inspection system according to claim 6, wherein, The method comprises the following steps: S1, preparing a blank material: The blank material (500) is placed in a heating furnace and heated to 100±5 degrees Celsius, so as to facilitate subsequent forging processing; S2, superconducting cavity special die preparation: The lower die (301), the rough forging upper die (302), the fine forging upper die (303) and the punching cutter (304) of the superconducting cavity special mold (300) are respectively placed in the working preparation position; the lower die (301) is placed on the workbench of the die forging equipment (200), and the positioning column (3011) is inserted into the lower die positioning hole (2011) and locked to ensure that the lower die (301) is in a fastened and installed state; the rough forging upper die (302) is installed on the turret type mold automatic switching device (100), the first lower positioning column (3022) is attached to the positioning port (1073), the upper surface of the first upper die plate (3023) is attached to the lower surface of the turret arm (1042), the servo motor in the control box (105) works, the drive screw (1071) rotates, drives the moving clamping block (1072) to move towards the fixed clamping block (1074), and clamps the first lower positioning column (3022) together with the fixed clamping block (1074), so as to clamp the rough forging upper die (302); the fine forging upper die (303) and the punching cutter (304) are also installed on the turret type mold automatic switching device (100) in the same way, and then the rough forging upper die (302), the fine forging upper die (303) and the punching cutter (304) are switched by the turret type mold automatic switching device (100); S3, non-contact cleaning of the mold: The motor in the switching base (101) rotates, drives each turret arm and the mold clamped together to rotate, when the rough forging upper die (302) rotates above the first air jet head (1031), the second air compressor in the switching base (101) works, transmits high-pressure gas through the air pipe column (103), and sprays upward through the first air jet head (1031), which can blow off the dust and particles on the rough forging upper die (302); the fine forging upper die (303) and the punching cutter (304) are cleaned in the same way, and the lower die (301) is cleaned by the second air jet head (2023); S4, processing preparation: The relative position between the turret type mold automatic switching device (100) and the die forging equipment (200) is determined, and it is in a working preparation state: the heated blank (500) is placed on the working position of the lower die (301); the turret arm rotates, and the turret arm (1042) carries the rough forging upper die (302) to rotate below the power head (2022), the first upper positioning column (3021) is coaxially placed with the power head (2022), and the upper surface of the first upper positioning column (3021) is fixedly connected with the lower surface of the power head (2022), the connection mode is electromagnetic force locking, then the moving clamping block (1072) is withdrawn, the rough forging upper die (302) is loosened, and the turret arm rotates away from the die forging working area; S5, rough forging of superconducting cavity: The hydraulic device in the upper box body (202) works, the slow downward pressing and rotating mode is started, the power head (2022) is pushed to move downward at a slow speed and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough forging upper die (302) is driven to move downward and rotate at a slow speed, the rough ​ ​ ​ ​ ​ ​ ​ ​ After standing for eight hours, the first strain detection ring (4022), the second strain detection ring (4023), the third strain detection ring (4024), the fourth strain detection ring (4025) and the fifth strain detection ring (4026) start working again, record the strain amount of each resistance strain gauge at this time, and store the data in the control box for comparison. If it is found that the comparison results are consistent or the difference is within the allowable range, it is determined that the punched superconducting cavity (800) is qualified, has been sufficiently plastically deformed and has no obvious elastic deformation, and can be output to the next link for processing. Otherwise, it is determined that the punched superconducting cavity (800) is unqualified, has unacceptable elastic deformation, and needs to return to S6 again. After that, the process steps are detected again. If the punched superconducting cavity (800) is still unqualified after two reprocessing, it is determined to be a completely unqualified product, and the product scrap process is changed. S9, subsequent processing and product forming: For the qualified punched superconducting cavity (800), it is transported to the next link for machining, and finally forms the superconducting cavity final product (900).

Citation Information

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