Batch detection device for mechanical properties of air cavity spring of AFA3G fuel assembly

Abstract

The invention particularly relates to an AFA3G fuel assembly air cavity spring mechanical property batch detection device. The device comprises a charging tray (4) and a plurality of mechanical detection stations on the charging tray (4). And the mechanical detection station is used for detecting the mechanical property of the air cavity spring of the AFA3G fuel assembly in real time. According to the invention, batch automatic detection of the mechanical properties of the AFA3G fuel assembly air cavity spring is realized, the labor cost is saved, and the detection efficiency is improved.

Description

Technical Field

[0001] The invention relates to the technical field of mechanical performance detection of air cavity springs, in particular to a mechanical performance detection device for air cavity springs of AFA3G fuel components. Background Art

[0002] The overall shape of the AFA3G fuel assembly air cavity spring is slender, and the port size is thin at the top and thick at the bottom. The mechanical performance detection method of the AFA3G fuel assembly air cavity spring is: the AFA3G fuel assembly air cavity spring is deformed to different degrees by compression, and the force and displacement values ​​under different deformation degrees are measured, wherein the force value is measured by a force sensor, and the displacement value is measured by a displacement sensor; according to the measured force value and displacement value, a force-displacement curve is formed.

[0003] For the air cavity springs used in the production of AFA3G fuel assemblies, multiple springs need to be sampled from each batch for mechanical property testing. Manual testing of each spring one by one has the problems of high labor costs and low testing efficiency. Summary of the invention

[0004] The purpose of the present invention is to provide a device for detecting the mechanical properties of the air cavity spring of an AFA3G fuel assembly, so as to realize batch automatic detection of the mechanical properties of the air cavity spring of an AFA3G fuel assembly, save labor costs and improve detection efficiency.

[0005] In order to achieve the above object, the present invention provides the following technical solutions:

[0006] A batch detection device for the mechanical properties of an air cavity spring of an AFA3G fuel assembly comprises a material tray and a plurality of mechanical detection stations on the material tray; the mechanical detection stations are used for real-time detection of the mechanical properties of the air cavity spring of the AFA3G fuel assembly.

[0007] As one of the feasible ways, the mechanical properties of the AFA3G fuel assembly air cavity spring include the force value of the AFA3G fuel assembly air cavity spring in a compressed state and the displacement value of the AFA3G fuel assembly air cavity spring in a coiled state, and the mechanical detection station includes a force value detection station and a coiled state detection station; there are multiple force value detection stations, and one force value detection station is used to detect the force value of an AFA3G fuel assembly air cavity spring in a compressed state in real time; there are multiple coiled state detection stations, and one coiled state detection station is used to detect the displacement value of an AFA3G fuel assembly air cavity spring in a coiled state in real time.

[0008] As one of the feasible ways, the force detection station includes a force detection mandrel, a force sensor and a force detection pressure head; the force detection mandrel is fixedly connected to the material tray, the force sensor is fixedly connected to the bottom of the force detection mandrel, the force detection pressure head and the AFA3G fuel assembly air cavity spring are both sleeved on the force detection mandrel, the bottom of the AFA3G fuel assembly air cavity spring is in contact with the force sensor, and the top of the AFA3G fuel assembly air cavity spring is in contact with the force detection pressure head; the force sensor is used to detect the force value of the AFA3G fuel assembly air cavity spring in a compressed state in real time.

[0009] As one achievable manner, the force value detection mandrel is composed of a lower cylinder fixedly connected to the material tray and an upper cylinder fixedly connected to the lower cylinder.

[0010] As one of the feasible ways, the coiling detection station includes a coiling detection mandrel, a displacement sensor and a coiling detection pressure head; the coiling detection mandrel is fixedly connected to the material tray, the displacement sensor is fixedly connected to the bottom of the coiling detection mandrel, the coiling detection pressure head and the AFA3G fuel assembly air cavity spring are both sleeved on the coiling detection mandrel, the bottom of the AFA3G fuel assembly air cavity spring is in contact with the displacement sensor, and the top of the AFA3G fuel assembly air cavity spring is in contact with the coiling detection pressure head; the displacement sensor is used to detect the displacement value of the AFA3G fuel assembly air cavity spring in the coiling state in real time.

[0011] As one achievable manner, the parallel coil detection mandrel is composed of a boss fixedly connected to the material tray and a cylinder fixedly connected to the boss.

[0012] As one of the achievable methods, the AFA3G fuel assembly air cavity spring mechanical property batch detection device also includes a state recognition system; the state recognition system includes a visual recognition system and a state display module; there are multiple state display modules, and one force value detection station corresponds to one state display module;

[0013] The force value detection station is also used to detect the force value of the AFA3G fuel assembly air cavity spring on the force value detection station in real time and send it to the corresponding status display module;

[0014] The visual recognition system is installed at a position facing the coil-joint detection station and is connected to the displacement sensor of the coil-joint detection station to identify and display whether there is an AFA3G fuel assembly air cavity spring at the coil-joint detection station and whether the AFA3G fuel assembly air cavity spring at the coil-joint detection station is in a coil-joint state; and sends a coil-joint state signal of the AFA3G fuel assembly air cavity spring at the coil-joint detection station to the coil-joint detection station;

[0015] The status display module is installed at the bottom of the force detection station and is communicatively connected to the force sensor of the force detection station. It is used to identify and display whether there is an AFA3G fuel assembly air cavity spring on the force detection station and whether the AFA3G fuel assembly air cavity spring on the force detection station is in a compressed state; and sends a compression state signal of the AFA3G fuel assembly air cavity spring on the force detection station to the force detection station.

[0016] As one of the feasible methods, the visual recognition system captures the image of the coiling detection station; based on whether the AFA3G fuel assembly air cavity spring exists in the image, it is determined whether there is an AFA3G fuel assembly air cavity spring at the coiling detection station; based on the position of the AFA3G fuel assembly air cavity spring in the image, it is determined whether the AFA3G fuel assembly air cavity spring at the coiling detection station is in a coiling state.

[0017] As one of the feasible methods, the status display module determines whether the AFA3G fuel assembly air cavity spring at the corresponding stress value detection station is in a compressed state according to the force value of the AFA3G fuel assembly air cavity spring at the corresponding stress value detection station; and determines whether there is an AFA3G fuel assembly air cavity spring at the corresponding stress value detection station according to whether the force value of the AFA3G fuel assembly air cavity spring at the corresponding stress value detection station is received.

[0018] As one of the feasible ways, the status display module displays whether there is an AFA3G fuel assembly air cavity spring at the stress value detection station and whether the AFA3G fuel assembly air cavity spring at the stress value detection station is in a compressed state through different light colors.

[0019] As one of the achievable methods, the AFA3G fuel assembly air cavity spring mechanical property batch detection device also includes a data processing system;

[0020] The force value detection station is also used to send the force value of the AFA3G fuel assembly air cavity spring under compression state detected in real time to the data processing system;

[0021] The coiling detection station is also used to send the displacement value of the AFA3G fuel assembly air cavity spring in the coiling state detected in real time to the data processing system;

[0022] The data processing system is used to generate a force-displacement curve of the AFA3G fuel assembly air cavity spring according to the force value of the AFA3G fuel assembly air cavity spring in a compressed state and the displacement value of the AFA3G fuel assembly air cavity spring in a coiled state.

[0023] As one of the feasible ways, the AFA3G fuel assembly air cavity spring mechanical property batch detection device also includes a control system, a positioning system and a laser system;

[0024] A positioning system, used for positioning the mechanical testing station and sending a mechanical testing station positioning signal to the control system;

[0025] The state recognition system is also used to send the signal of the presence of the AFA3G fuel assembly air cavity spring at the mechanical inspection station to the control system;

[0026] The control system is used to determine the quantity and serial number of the AFA3G fuel assembly air cavity springs existing at the mechanical inspection station according to the signal of the AFA3G fuel assembly air cavity springs existing at the mechanical inspection station; and to control the laser system to mark the serial number of the corresponding AFA3G fuel assembly air cavity spring at the mechanical inspection station where the AFA3G fuel assembly air cavity spring exists with a laser according to the signal of the AFA3G fuel assembly air cavity springs existing at the mechanical inspection station and the mechanical inspection station positioning signal.

[0027] Beneficial technical effects of the present invention:

[0028] The AFA3G fuel assembly air cavity spring mechanical property batch detection device of the present invention realizes one-time loading of AFA3G fuel assembly air cavity springs to multiple mechanical detection stations; automatically batch identifies and displays whether AFA3G fuel assembly air cavity springs exist at the mechanical property detection station and the status of AFA3G fuel assembly air cavity springs at the mechanical detection station, automatically batch completes the mechanical property detection of AFA3G fuel assembly air cavity springs, and automatically generates a force-displacement curve of AFA3G fuel assembly air cavity springs. No personnel participation is required during the entire mechanical property detection process, and the mechanical property detection of AFA3G fuel assembly air cavity springs is replaced by personnel manually completing the mechanical property detection of AFA3G fuel assembly air cavity springs; labor costs are saved and detection efficiency is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 It is a structural schematic diagram of an embodiment of the AFA3G fuel assembly air cavity spring of the present invention;

[0030] Figure 2 It is a structural schematic diagram of an embodiment of a batch detection device for mechanical properties of an AFA3G fuel assembly air cavity spring of the present invention;

[0031] Figure 3 It is a schematic diagram of the use of an embodiment of the batch detection device for the mechanical properties of the air cavity spring of the AFA3G fuel assembly of the present invention.

[0032] In the figure, 1. Force value detection station; 2. Loop detection station; 3. Status display module; 4. Material tray; 5. Visual recognition system. DETAILED DESCRIPTION

[0033] The technical solution of the present invention is described clearly and completely below in conjunction with the accompanying drawings and specific implementation methods. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0034] In the description of the present invention, it is necessary to understand that the directions or positional relationships indicated by the terms "up", "down", "left", "right", "front", "back", "inside", "outside", etc. are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore cannot be understood as a limitation on the present invention.

[0035] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] See also Figure 2-3 This embodiment provides a batch detection device for the mechanical properties of the air cavity spring of the AFA3G fuel assembly, including a material tray 4 and a plurality of mechanical detection stations on the material tray 4; the mechanical detection stations are used to detect the mechanical properties of the air cavity spring of the AFA3G fuel assembly in real time.

[0037] In this embodiment, as one of the feasible ways, the mechanical properties of the AFA3G fuel assembly air cavity spring include the force value of the AFA3G fuel assembly air cavity spring in a compressed state and the displacement value of the AFA3G fuel assembly air cavity spring in a coiled state, and the mechanical detection station includes a force value detection station 1 and a coiled state detection station 2; there are multiple force value detection stations 1, and one force value detection station 1 is used to detect the force value of an AFA3G fuel assembly air cavity spring in a compressed state in real time; there are multiple coiled state detection stations 2, and one coiled state detection station 2 is used to detect the displacement value of an AFA3G fuel assembly air cavity spring in a coiled state in real time.

[0038] In the present embodiment, as one of the feasible ways, there are 6 parallel coil detection stations 2; the 6 parallel coil detection stations 2 are on the left side of the material tray 4, and are arranged in a row with equal spacing along the width direction of the material tray 4; the spacing between the parallel coil detection stations 2 is 80 mm; there are 132 force value detection stations 1; the 132 force value detection stations 1 are on the right side of the material tray 4, and are arranged in a 12×11 array with equal spacing along the length and width directions of the material tray 4; the spacing between the force value detection stations 1 is 40 mm.

[0039] In this embodiment, as one of the feasible ways, the force detection station 1 includes a force detection mandrel, a force sensor and a force detection pressure head; the force detection mandrel is fixedly connected to the material tray 4, the force sensor is fixedly connected to the bottom of the force detection mandrel, the force detection pressure head and the AFA3G fuel assembly air cavity spring are both sleeved on the force detection mandrel, the bottom of the AFA3G fuel assembly air cavity spring is in contact with the force sensor, and the top of the AFA3G fuel assembly air cavity spring is in contact with the force detection pressure head; the force sensor is used to detect the force value of the AFA3G fuel assembly air cavity spring in a compressed state in real time.

[0040] When using force detection station 1 to detect the force value of the AFA3G fuel assembly air cavity spring under compression in real time, remove the force detection pressure head from the force detection mandrel, put the AFA3G fuel assembly air cavity spring on the force detection mandrel, and then put the force detection pressure head on the force detection mandrel; the bottom of the AFA3G fuel assembly air cavity spring contacts with the force sensor, and the top of the AFA3G fuel assembly air cavity spring contacts with the force detection pressure head, and the AFA3G fuel assembly air cavity spring is in a compressed state at this time; the force sensor detects the force value of the AFA3G fuel assembly air cavity spring under compression in real time.

[0041] In this embodiment, as one of the feasible methods, the coil detection station 2 includes a coil detection core shaft, a displacement sensor and a coil detection pressure head; the coil detection core shaft is fixedly connected to the material tray 4, the displacement sensor is fixedly connected to the bottom of the coil detection core shaft, the coil detection pressure head and the AFA3G fuel assembly air cavity spring are both sleeved on the coil detection core shaft, the bottom of the AFA3G fuel assembly air cavity spring is in contact with the displacement sensor, and the top of the AFA3G fuel assembly air cavity spring is in contact with the coil detection pressure head; the displacement sensor is used to detect the displacement value of the AFA3G fuel assembly air cavity spring in the coil state in real time.

[0042] When using the coiling detection station 2 to detect the displacement value of the AFA3G fuel assembly air cavity spring in the coiling state in real time, remove the coiling detection pressure head from the coiling detection mandrel, put the AFA3G fuel assembly air cavity spring on the coiling detection mandrel, and then put the coiling detection pressure head on the coiling detection mandrel; the bottom of the AFA3G fuel assembly air cavity spring contacts with the displacement sensor, and the top of the AFA3G fuel assembly air cavity spring contacts with the coiling detection pressure head, at this time, the AFA3G fuel assembly air cavity spring is in the coiling state; the displacement sensor detects the displacement value of the AFA3G fuel assembly air cavity spring in the coiling state in real time.

[0043] The force detection station 1 and the coil detection station 2 can ensure the effective fixation of the AFA3G fuel assembly air cavity spring in the mechanical properties test, ensuring the smooth progress of the subsequent AFA3G fuel assembly air cavity spring mechanical properties test.

[0044] In this embodiment, as one of the feasible ways, the force value detection mandrel is fixedly connected to the material tray 4. The lower cylinder and the diameter fixedly connected to the lower cylinder The upper cylinder can ensure high strength and service life.

[0045] In this embodiment, as one of the achievable methods, the parallel circle detection mandrel is composed of a 25mm high boss fixedly connected to the material tray 4 and a through diameter fixedly connected to the boss. It is composed of a cylindrical body, which can ensure high strength and service life.

[0046] When the AFA3G fuel assembly air cavity spring is deformed under pressure, it will produce lateral bending deformation or pop out, affecting the mechanical performance test results of the AFA3G fuel assembly air cavity spring or making the mechanical performance test impossible to implement. The present invention designs a force value detection mandrel and a ring parallel detection mandrel. When performing mechanical performance testing, the AFA3G fuel assembly air cavity spring is sleeved on the force value detection mandrel and the ring parallel detection mandrel, effectively controlling the lateral bending deformation of the AFA3G fuel assembly air cavity spring within the allowable range, and avoiding the deformation and popping out of the AFA3G fuel assembly air cavity spring during the mechanical performance test.

[0047] In this embodiment, as one of the feasible ways, the coil detection station 2 detects the displacement value of the air cavity spring of the AFA3G fuel assembly with a maximum value of 170 mm and a minimum value of 70 mm.

[0048] In this embodiment, as one of the achievable methods, the AFA3G fuel assembly air cavity spring mechanical property batch detection device also includes a state recognition system; the state recognition system includes a visual recognition system 5 and a state display module 3; there are multiple state display modules 3, and one force value detection station 1 corresponds to one state display module 3;

[0049] The force sensor of the force value detection station 1 is also used to detect the force value of the AFA3G fuel assembly air cavity spring on the force value detection station 1 in real time and send it to the corresponding status display module 3;

[0050] The visual recognition system 5 is installed at a position facing the coil-joint detection station 2 and is in communication connection with the displacement sensor of the coil-joint detection station 2, and is used to identify and display whether there is an AFA3G fuel assembly air cavity spring on the coil-joint detection station 2 and whether the AFA3G fuel assembly air cavity spring on the coil-joint detection station 2 is in a coil-joint state; and sends a coil-joint state signal of the AFA3G fuel assembly air cavity spring on the coil-joint detection station 2 to the displacement sensor of the coil-joint detection station 2;

[0051] The status display module 3 is installed at the bottom of the force detection station 1 and is communicated with the force sensor of the force detection station 1. It is used to identify and display whether there is an AFA3G fuel assembly air cavity spring on the force detection station 1 and whether the AFA3G fuel assembly air cavity spring on the force detection station 1 is in a compressed state; and send a compression state signal of the AFA3G fuel assembly air cavity spring on the force detection station 1 to the force sensor of the force detection station 1.

[0052] In this embodiment, as one of the achievable methods, the visual recognition system 5 takes an image of the boss position of the coiling detection station 2; determines whether there is an AFA3G fuel assembly air cavity spring on the coiling detection station 2 according to whether there is an AFA3G fuel assembly air cavity spring in the image; determines whether the AFA3G fuel assembly air cavity spring on the coiling detection station 2 is in a coiling state according to the position of the AFA3G fuel assembly air cavity spring in the image. The boss of the coiling detection station 2 facilitates the visual recognition system 5 to observe the bottom of the AFA3G fuel assembly air cavity spring.

[0053] In this embodiment, as one of the feasible methods, the status display module 3 determines whether the AFA3G fuel assembly air cavity spring on the corresponding stress value detection station 1 is in a compressed state according to the force value of the AFA3G fuel assembly air cavity spring on the corresponding stress value detection station 1; and determines whether there is an AFA3G fuel assembly air cavity spring on the corresponding stress value detection station 1 according to whether the force value of the AFA3G fuel assembly air cavity spring on the corresponding stress value detection station 1 is received.

[0054] In this embodiment, as one of the feasible methods, the status display module 3 displays whether there is an AFA3G fuel assembly air cavity spring on the stress value detection station 1 and whether the AFA3G fuel assembly air cavity spring on the stress value detection station 1 is in a compressed state through different light colors.

[0055] In this embodiment, as one of the achievable methods, the AFA3G fuel assembly air cavity spring mechanical property batch detection device also includes a data processing system;

[0056] The force sensor of the force value detection station 1 is also used to send the force value of the AFA3G fuel assembly air cavity spring under the compression state detected in real time at the force value detection station 1 to the data processing system;

[0057] The displacement sensor of the coiling detection station 2 is also used to send the displacement value of the AFA3G fuel assembly air cavity spring in the coiling state detected in real time at the coiling detection station 2 to the data processing system;

[0058] The data processing system is used to generate a force-displacement curve of the AFA3G fuel assembly air cavity spring according to the force value of the AFA3G fuel assembly air cavity spring in a compressed state and the displacement value of the AFA3G fuel assembly air cavity spring in a coiled state.

[0059] In this embodiment, as one of the achievable methods, the AFA3G fuel assembly air cavity spring mechanical properties batch detection device also includes a control system, a positioning system and a laser system;

[0060] A positioning system, used for positioning the mechanical testing station and sending a mechanical testing station positioning signal to the control system;

[0061] The state recognition system is also used to send the signal of the presence of the AFA3G fuel assembly air cavity spring at the mechanical inspection station to the control system;

[0062] A control system is used to determine the quantity and serial number of the AFA3G fuel assembly air cavity springs present at the mechanical inspection station according to the signal of the AFA3G fuel assembly air cavity spring present at the mechanical inspection station; and to control the laser system to mark the serial number of the corresponding AFA3G fuel assembly air cavity spring at the mechanical inspection station where the AFA3G fuel assembly air cavity spring exists with a laser according to the signal of the AFA3G fuel assembly air cavity spring present at the mechanical inspection station and the mechanical inspection station positioning signal, so as to facilitate manual search for the mechanical inspection station position where the AFA3G fuel assembly air cavity spring exists.

[0063] The AFA3G fuel assembly air cavity spring mechanical properties batch detection device of the present embodiment is used to perform AFA3G fuel assembly air cavity spring mechanical properties batch detection, including the following steps:

[0064] Step 1: Manually prepare the AFA3G fuel assembly air cavity spring;

[0065] Step 2: insert the AFA3G fuel assembly air cavity spring into each mechanical testing station, with the reduced diameter end of the AFA3G fuel assembly air cavity spring facing upward;

[0066] Step 3: The control system controls the laser system to mark the serial number of the AFA3G fuel assembly air cavity spring with a laser at the mechanical inspection station where the AFA3G fuel assembly air cavity spring exists;

[0067] Step 4: The state recognition system recognizes and displays whether there is an AFA3G fuel assembly air cavity spring at the mechanical inspection station and the state of the AFA3G fuel assembly air cavity spring at the mechanical inspection station;

[0068] Step 5: When the AFA3G fuel assembly air cavity spring at the mechanical testing station is in a compressed state or a coiled state, the mechanical testing station detects the force value of the AFA3G fuel assembly air cavity spring in a compressed state and the displacement value of the AFA3G fuel assembly air cavity spring in a coiled state in real time and sends them to the data processing system;

[0069] Step 6: The data processing system generates a force-displacement curve of the AFA3G fuel assembly air cavity spring according to the force value of the AFA3G fuel assembly air cavity spring in a compressed state and the displacement value of the AFA3G fuel assembly air cavity spring in a coiled state.

[0070] The AFA3G fuel assembly air cavity spring mechanical property batch detection device of the present embodiment realizes one-time loading of AFA3G fuel assembly air cavity springs at 132 force value detection stations 1 and 6 coiling detection stations 2; automatically batch identifies and displays whether there are AFA3G fuel assembly air cavity springs at force value detection station 1 and coiling detection station 2 and the status of AFA3G fuel assembly air cavity springs at force value detection station 1 and coiling detection station 2; automatically batch completes the pressure value detection of the AFA3G fuel assembly air cavity springs in the compressed state and the displacement value detection in the coiling state; automatically generates the force value-displacement curve of the AFA3G fuel assembly air cavity spring; no personnel participation is required in the entire mechanical property detection process, and the mechanical property detection of the AFA3G fuel assembly air cavity springs is manually completed by personnel; the personnel participation time is reduced from the original 8 hours to 0.5 hours.

[0071] The above-mentioned embodiments only express several implementation methods of the present invention, and the description thereof is relatively specific and detailed, but it cannot be understood as limiting the scope of the patent of the present invention. It should be pointed out that, for ordinary technicians in this field, several variations and improvements can be made without departing from the concept of the present invention, which all belong to the protection scope of the present invention. Therefore, the protection scope of the patent of the present invention shall be subject to the attached claims.

Claims

1. A batch detection device for mechanical properties of AFA3G fuel assembly air cavity spring, characterized in that: It comprises a material tray (4) and a plurality of mechanical detection stations on the material tray (4); the mechanical detection stations are used for real-time detection of the mechanical properties of the air cavity spring of the AFA3G fuel assembly.

2. The AFA3G fuel assembly air cavity spring mechanical properties batch detection device according to claim 1 is characterized in that: The mechanical properties of the AFA3G fuel assembly air cavity spring include the force value of the AFA3G fuel assembly air cavity spring in a compressed state and the displacement value of the AFA3G fuel assembly air cavity spring in a coiled state. The mechanical detection station includes a force value detection station (1) and a coiled state detection station (2). There are multiple force value detection stations (1), and one force value detection station (1) is used for real-time detection of the force value of an AFA3G fuel assembly air cavity spring in a compressed state; there are multiple coiled state detection stations (2), and one coiled state detection station (2) is used for real-time detection of the displacement value of an AFA3G fuel assembly air cavity spring in a coiled state.

3. The AFA3G fuel assembly air cavity spring mechanical properties batch detection device according to claim 2 is characterized in that: The force detection station (1) comprises a force detection mandrel, a force sensor and a force detection pressure head; the force detection mandrel is fixedly connected to a material tray (4), the force sensor is fixedly connected to the bottom of the force detection mandrel, the force detection pressure head and the AFA3G fuel assembly air cavity spring are both sleeved on the force detection mandrel, the bottom of the AFA3G fuel assembly air cavity spring is in contact with the force sensor, and the top of the AFA3G fuel assembly air cavity spring is in contact with the force detection pressure head; the force sensor is used for real-time detection of the force value of the AFA3G fuel assembly air cavity spring in a compressed state.

4. The AFA3G fuel assembly air cavity spring mechanical properties batch detection device according to claim 3 is characterized in that: The coiling detection station (2) comprises a coiling detection mandrel, a displacement sensor and a coiling detection pressure head; the coiling detection mandrel is fixedly connected to the material tray (4), the displacement sensor is fixedly connected to the bottom of the coiling detection mandrel, the coiling detection pressure head and the AFA3G fuel assembly air cavity spring are both sleeved on the coiling detection mandrel, the bottom of the AFA3G fuel assembly air cavity spring is in contact with the displacement sensor, and the top of the AFA3G fuel assembly air cavity spring is in contact with the coiling detection pressure head; the displacement sensor is used to detect the displacement value of the AFA3G fuel assembly air cavity spring in a coiling state in real time.

5. The AFA3G fuel assembly air cavity spring mechanical properties batch detection device according to claim 4 is characterized in that: The parallel coil detection mandrel is composed of a boss fixedly connected to the material tray (4) and a cylinder fixedly connected to the boss; the force value detection mandrel is composed of a lower cylinder fixedly connected to the material tray (4) and an upper cylinder fixedly connected to the lower cylinder.

6. The AFA3G fuel assembly air cavity spring mechanical properties batch detection device according to claim 2 is characterized in that: It also includes a state recognition system; the state recognition system includes a visual recognition system (5) and a state display module (3); there are multiple state display modules (3), and one force value detection station (1) corresponds to one state display module (3); The force value detection station (1) is also used to detect the force value of the air cavity spring of the AFA3G fuel assembly in real time and send it to the corresponding status display module (3); A visual recognition system (5) is installed at a position facing the coiling detection station (2) and is communicatively connected to a displacement sensor of the coiling detection station (2) for identifying and displaying whether an AFA3G fuel assembly air cavity spring exists on the coiling detection station (2) and whether the AFA3G fuel assembly air cavity spring on the coiling detection station (2) is in a coiling state; and sending a coiling state signal of the AFA3G fuel assembly air cavity spring on the coiling detection station (2) to the coiling detection station (2); A state display module (3) is installed at the bottom of the force value detection station (1) and is connected to the force sensor of the force value detection station (1) for identifying and displaying whether there is an AFA3G fuel assembly air cavity spring on the force value detection station (1) and whether the AFA3G fuel assembly air cavity spring on the force value detection station (1) is in a compressed state; and a signal indicating that the AFA3G fuel assembly air cavity spring on the force value detection station (1) is in a compressed state is sent to the force value detection station (1).

7. The AFA3G fuel assembly air cavity spring mechanical properties batch detection device according to claim 6 is characterized in that: The visual recognition system (5) captures an image of the boss position of the coiling detection station (2); determines whether the AFA3G fuel assembly air cavity spring exists on the coiling detection station (2) based on whether the AFA3G fuel assembly air cavity spring exists in the image; and determines whether the AFA3G fuel assembly air cavity spring on the coiling detection station (2) is in a coiling state based on the position of the AFA3G fuel assembly air cavity spring in the image.

8. The AFA3G fuel assembly air cavity spring mechanical properties batch detection device according to claim 6 is characterized in that: The status display module (3) determines whether the AFA3G fuel assembly air cavity spring on the corresponding stress value detection station (1) is in a compressed state based on the force value of the AFA3G fuel assembly air cavity spring on the corresponding stress value detection station (1); and determines whether the AFA3G fuel assembly air cavity spring exists on the corresponding stress value detection station (1) based on whether the force value of the AFA3G fuel assembly air cavity spring on the corresponding stress value detection station (1) is received.

9. The AFA3G fuel assembly air cavity spring mechanical properties batch detection device according to claim 6, characterized in that: AFA3G fuel assembly air cavity spring mechanical properties batch testing device, also includes a control system, a positioning system and a laser system; A positioning system, used for positioning the mechanical testing station and sending a mechanical testing station positioning signal to the control system; The state recognition system is also used to send the signal of the presence of the AFA3G fuel assembly air cavity spring at the mechanical inspection station to the control system; The control system is used to determine the quantity and serial number of the AFA3G fuel assembly air cavity springs existing at the mechanical inspection station according to the signal of the AFA3G fuel assembly air cavity springs existing at the mechanical inspection station; and to control the laser system to mark the serial number of the corresponding AFA3G fuel assembly air cavity spring at the mechanical inspection station where the AFA3G fuel assembly air cavity spring exists with a laser according to the signal of the AFA3G fuel assembly air cavity springs existing at the mechanical inspection station and the mechanical inspection station positioning signal.

10. The AFA3G fuel assembly air cavity spring mechanical properties batch detection device according to claim 2, characterized in that: Also includes data processing systems; The force value detection station (1) is also used to send the force value of the AFA3G fuel assembly air cavity spring under the compression state detected in real time to the data processing system; The coiling detection station (2) is also used to send the displacement value of the AFA3G fuel assembly air cavity spring in the coiling state detected in real time to the data processing system; The data processing system is used to generate a force-displacement curve of the AFA3G fuel assembly air cavity spring according to the force value of the AFA3G fuel assembly air cavity spring in a compressed state and the displacement value of the AFA3G fuel assembly air cavity spring in a coiled state.

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