A device and method for measuring neutron background of metal products

Abstract

The present application belongs to the field of neutron background technology, and specifically relates to a device and method for measuring the neutron background of metal products. The device includes: a grabbing assembly, a supporting steel frame and a moving assembly; the moving assembly is fixed on the supporting steel frame, one end of the grabbing assembly is connected to the moving assembly, and moves under the drive of the moving assembly; the other end of the grabbing assembly is provided with a clamping claw for grabbing a standard source or a metal product to be measured. The device can realize fixed-point grabbing of a certain metal product, and transport it to the center of the neutron measurement device for measurement through a grabbing motion unit. After application, the neutron background of metal products can be measured in batches in an automated factory, protecting the health of operators, reducing the labor intensity of operators, improving work efficiency, and being easy to promote and apply.

Description

Technical Field

[0001] The present application belongs to the field of neutron background technology, and specifically relates to a device and method for measuring the neutron background of metal products. Background Art

[0002] At present, the method for determining the neutron background of metal products is that the operator first starts the neutron background measurement device, measures the natural background count for 10 minutes, then places the natural metal standard source at the center of the measurement device, measures the count within 10 minutes, calibrates the detection efficiency of the device, then places the metal product to be measured at the center of the measurement device, measures the count within 10 minutes, and finally, turns off the neutron background measurement device and processes the obtained data. The disadvantage of this method is that the operator manually operates when placing the standard source and the metal product, and the degree of automation is low. Summary of the invention

[0003] The purpose of the present application is to provide a device and method for neutron background measurement of metal products, so as to solve the problems in the prior art that the neutron background measurement of metal products harms the health of operators and has a low degree of automation.

[0004] Technical solution to achieve the purpose of this application:

[0005] A first aspect of an embodiment of the present application provides a device for neutron background measurement of metal products, the device comprising: a grabbing component, a supporting steel frame and a moving component;

[0006] The moving component is fixed on the supporting steel frame, one end of the grabbing component is connected to the moving component and moves under the drive of the moving component;

[0007] The other end of the grabbing assembly is provided with a clamping claw for grabbing a standard source or a metal product to be measured.

[0008] Optionally, the motion assembly includes: a linear guide rail, a Z-axis telescopic module, a Y-axis module and an X-axis module;

[0009] The linear guide rail and the Y-axis module are fixed in parallel on the supporting steel frame, and the two ends of the X-axis module are respectively arranged on the linear guide rail and the Y-axis module, and can move along the linear guide rail and the Y-axis module;

[0010] One end of the Z-direction telescopic module is connected to the X-axis module, and the other end is connected to the grabbing component, which is used to drive the grabbing component to telescope in the Z direction; the X-axis module is used to drive the Z-direction telescopic module to move in the X-axis direction.

[0011] Optionally, the motion component further includes: a drag chain;

[0012] The drag chain is installed on the X-axis module and the Y-axis module to play a traction and protection role.

[0013] Optionally, a gripping assembly, specifically comprising: a connecting rod, a buffer spring, a mounting flange, a gripper mounting plate, a transition mounting plate, a guide shaft and a connecting plate;

[0014] The two ends of the connecting rod are respectively connected to one end of the gripper mounting plate and one end of the transition mounting plate, the two ends of the guide shaft are respectively connected to the other end of the transition mounting plate and one end of the connecting plate, and the buffer spring is sleeved on the guide shaft; the other end of the connecting plate is connected to the Z-direction telescopic module through a mounting flange;

[0015] The other end of the gripper mounting plate is connected to the gripper through a pneumatic gripper.

[0016] Optional, Z-axis telescopic module, specifically including: multi-stage electric cylinder, servo motor, reducer and air pipe;

[0017] The servo motor is connected to the multi-stage electric cylinder; the multi-stage electric cylinder is connected to the grasping component through the air pipe to drive the grasping component to move.

[0018] Optional, Z-axis telescopic module, specifically also includes: reducer

[0019] The servo motor is connected to the multi-stage electric cylinder through a reducer.

[0020] Optionally, a polyurethane clamp block is fixed on the inner side of the clamping jaw to protect the grasped object.

[0021] Optionally, the device further comprises: a neutron detector;

[0022] The neutron detector is arranged at the lower end of the clamping jaw.

[0023] A second aspect of the embodiments of the present application provides a method for measuring the neutron background of a metal product, characterized in that the method is applied to any one of the devices for measuring the neutron background of a metal product provided in the first aspect of the embodiments of the present application; the method comprises:

[0024] Using neutron detectors to obtain natural background counts;

[0025] Move the grabbing assembly to a designated position to grab a standard source, place the standard source at the center of a neutron detector, and measure the count of the standard source;

[0026] After the standard source is put back to its original place, the metal product to be measured is grabbed by a grabbing assembly, and the metal product is placed at the center of the neutron detector to measure the count of the metal product;

[0027] The neutron background of the metal product is obtained according to the natural background count, the standard source count and the metal product count.

[0028] Optionally, the method is implemented using a PLC controller.

[0029] The beneficial technical effects of this application are:

[0030] The embodiment of the present application provides a device and method for measuring the neutron background of metal products. The device includes: a grabbing component, a supporting steel frame and a moving component; the moving component is fixed on the supporting steel frame, one end of the grabbing component is connected to the moving component, and moves under the drive of the moving component; the other end of the grabbing component is provided with a clamping claw for grabbing a standard source or a metal product to be measured. The device can realize fixed-point grabbing of a certain metal product, and transport it to the center of the neutron measurement device for measurement through the grabbing motion unit. After application, the neutron background of metal products can be measured in batches in an automated factory, protecting the health of operators, reducing the labor intensity of operators, improving work efficiency, and being easy to promote and apply. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 A schematic diagram of the structure of a device for measuring neutron background of metal products provided in an embodiment of the present application;

[0032] Figure 2 A schematic diagram of the structure of a grabbing assembly and a Z-axis telescopic module in a device for neutron background measurement of metal products provided in an embodiment of the present application.

[0033] In the figure:

[0034] 1-Linear guide; 2-Z-axis telescopic module; 3-Grabbing assembly; 4-Support steel frame; 5-Y-axis module; 6-Drag chain; 7-X-axis module; 8-Trachea; 9-Gripper; 10-Pneumatic gripper; 11-Connecting rod; 12-Buffer spring; 13-Mounting flange; 14-Multi-stage electric cylinder; 15-Servo motor; 16-Reducer; 17-Polyurethane clamp; 18-Gripper mounting plate; 19-Transition mounting plate; 20-Guide shaft; 21-Connecting plate. DETAILED DESCRIPTION

[0035] In order to make those skilled in the art better understand the present application, the technical scheme in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the embodiments described below are only a part of the embodiments of the present application, not all. Based on the embodiments recorded in the present application, all other embodiments obtained by those skilled in the art without paying creative work are within the scope of protection of the present application.

[0036] See also Figure 1 , which is a schematic diagram of the structure of a device for neutron background measurement of metal products provided in an embodiment of the present application.

[0037] An embodiment of the present application provides a device for neutron background measurement of metal products, comprising: a grabbing component 3, a supporting steel frame 4 and a moving component;

[0038] The motion component is fixed on the supporting steel frame 4, and one end of the grabbing component 3 is connected to the motion component and moves under the drive of the motion component;

[0039] The other end of the grabbing assembly 3 is provided with a clamping claw 9 for grabbing a standard source or a metal product to be measured.

[0040] The device can realize the automatic grabbing of metal products and the detection of neutron background, so as to realize batch automatic detection, ensure the health of operators, reduce the labor intensity of operators and improve work efficiency.

[0041] In practical applications, the grabbing component 3 first takes out the standard source and transfers it to the center of the neutron detector, measures the count within 20 minutes, and grabs the standard source back to its position after the measurement is completed. Then the grabbing component 3 transfers the metal product to the center of the neutron detector and measures the count within 30 minutes. The measurement data is converted and processed by the neutron detection data acquisition unit, uploaded to the host computer in real time for storage, and the neutron background number is obtained after calculation and processing by the software, and the neutron background data and relative product code and other information are transmitted to the memory in real time for storage, realizing the product neutron background data processing, collection, storage, query and export functions.

[0042] In some possible implementations of the embodiments of the present application, the motion assembly may include: a linear guide rail 1, a Z-axis telescopic module 2, a Y-axis module 5, and an X-axis module 7;

[0043] The linear guide rail 1 and the Y-axis module 5 are fixed in parallel on the supporting steel frame 4, and the two ends of the X-axis module 7 are respectively arranged on the linear guide rail 1 and the Y-axis module 5, and can move along the linear guide rail 1 and the Y-axis module 5;

[0044] One end of the Z-direction telescopic module 2 is connected to the X-axis module 7, and the other end is connected to the grabbing assembly 3, which is used to drive the grabbing assembly 3 to telescope in the Z direction; the X-axis module 7 is used to drive the Z-direction telescopic module 2 to move in the X-axis direction.

[0045] It is understandable that the support steel frame 4 is mainly used to support the various components of the grabbing motion unit. The grabbing assembly 3 is mainly used to grab the standard source or metal product, and is connected to the Z-axis telescopic module 2; the linear guide rail 1 is used as the horizontal movement track of the X-axis module 7 and the Y-axis module 5.

[0046] In one example, the motion assembly may further include: a drag chain 6;

[0047] The drag chain 6 is installed on the X-axis module 7 and the Y-axis module 5 to play a traction and protection role.

[0048] In some possible implementations of the present application, such as Figure 2 As shown, the grab assembly 3 may specifically include: a connecting rod 11, a buffer spring 12, a mounting flange 13, a gripper mounting plate 18, a transition mounting plate 19, a guide shaft 20 and a connecting plate 21;

[0049] The two ends of the connecting rod 11 are respectively connected to one end of the gripper mounting plate 18 and one end of the transition mounting plate 19, the two ends of the guide shaft 20 are respectively connected to the other end of the transition mounting plate 19 and one end of the connecting plate 21, the buffer spring 12 is sleeved on the guide shaft 20; the other end of the connecting plate 21 is connected to the Z-direction telescopic module 2 through the mounting flange 13;

[0050] The other end of the gripper mounting plate 18 is connected to the gripper 9 via the pneumatic gripper 10 .

[0051] It can be understood that the grabbing assembly 3 adds a buffer spring 12, and the buffer spring 12 is arranged on the outside of the guide shaft 20. The guide shaft 20 is connected to the transition mounting plate 19 and the connecting plate 21, so that the part below the transition mounting plate 19 can move along the guide shaft 20. When the connecting rod 11 performs telescopic movement, it drives the transition mounting plate 19 and the guide shaft 20 to move, and the buffer spring 12 can play a buffering role to avoid rigid contact when the product is telescopically placed.

[0052] Due to the small caliber of the neutron detector, the air inlet and outlet of the pneumatic gripper 10 are selected as the end face, which is fixed by the gripper mounting plate 18, and is connected to the Z-direction telescopic module 2 through components such as the connecting rod 11, the buffer spring 12, the mounting flange 13, the transition mounting plate 19, the guide shaft 20, and the connecting plate 21. The two ends of the connecting rod 11 are respectively connected to the gripper mounting plate 18 and the transition mounting plate 19, and the buffer spring 12 is sleeved on the guide shaft 20. The guide shaft 20 is connected to the connecting plate 21 and the transition mounting plate 19. The connecting plate 21 is connected to the Z-direction telescopic module 2 through the mounting flange 13 to achieve the grasping of the object.

[0053] In some possible implementations of the present application, such as Figure 2 As shown, the Z-axis telescopic module 2 may specifically include: a multi-stage electric cylinder 14, a servo motor 15, a reducer 16 and an air pipe 8;

[0054] The servo motor 15 is connected to the multi-stage electric cylinder 14; the multi-stage electric cylinder 14 is connected to the grabbing component 3 through the air pipe 8, driving the grabbing component 3 to move.

[0055] In the specific implementation, a pneumatic clamp 10 is used in conjunction with a three-position five-way center-sealed solenoid valve connected to the air pipe 8 during product transportation. When the three-position five-way solenoid valve is energized, the air source enters the cylinder from the air inlet to push the cylinder. When the solenoid valve is energized, the air source cannot be discharged from the cylinder, maintaining the pressure of the cylinder. When the cylinder is powered off, the solenoid valve is closed, the air source cannot enter the cylinder, and the pressure of the cylinder remains unchanged, preventing the product from falling due to accidental air outage.

[0056] In one example, the Z-direction telescopic module 2 may further include: a reducer 16

[0057] The servo motor 15 is connected to the multi-stage electric cylinder 14 via a speed reducer 16 .

[0058] It can be understood that the servo motor 15 is matched with the linear module to ensure the accuracy of the motion position, and the moving position of the motion axis is set by software. After it is in place, the multi-stage electric cylinder 14 grabs the product through the grabbing module, and the reducer 16 controls the speed and torque to transmit the motion.

[0059] In some possible implementations of the present application, such as Figure 2 As shown, a polyurethane clamping block 17 can be fixed on the inner side of the clamping jaw 9 to protect the grasped object.

[0060] It is understandable that the contact part between the clamping jaw and the product adopts a polyurethane clamping block 17, and the polyurethane clamping block 17 is provided with grooves, which can not only increase the static friction coefficient to prevent the product from falling, but also avoid scratches on the surface of the product.

[0061] In some possible implementations of the embodiments of the present application, the device may further include: a neutron detector;

[0062] The neutron detector is arranged at the lower end of the clamping jaw 9 .

[0063] The embodiment of the present application can realize automatic calibration of the neutron dosimeter by grabbing the standard source, and the device can realize automatic grabbing of metal products and detection of neutron background, so as to realize batch automatic detection, ensure the health of operators, reduce the labor intensity of operators, and improve work efficiency.

[0064] Based on the device for measuring the neutron background of metal products provided in the above embodiment, the embodiment of the present application also provides a method for measuring the neutron background of metal products, which is applied to any one of the devices for measuring the neutron background of metal products provided in the above embodiment.

[0065] A method for measuring neutron background of metal products provided in an embodiment of the present application includes:

[0066] Using neutron detectors to obtain natural background counts;

[0067] Move the grabbing component 3 to a designated position to grab a standard source, place the standard source at the center of the neutron detector, and measure the count of the standard source;

[0068] After the standard source is put back to its original place, the metal product to be measured is grabbed by the grabbing assembly 3, and the metal product is placed at the center of the neutron detector to measure the count of the metal product;

[0069] The neutron background of the metal product is obtained according to the natural background count, the standard source count and the metal product count.

[0070] In specific implementation, the method can be realized by using a PLC controller.

[0071] A method for neutron background measurement of metal products provided in an embodiment of the present application is described in detail below with reference to a specific example.

[0072] The embodiment of the present application provides a method for measuring the neutron background of metal products. First, the neutron detector is turned on to measure the natural background count for 10 minutes. Then, the grab component 3 is moved to the specified position through the setting of software parameters. The natural standard source is first grabbed and placed at the center of the neutron detector. The count within 10 minutes is measured, the data transmitted to the host computer is processed and calculated, and the detection efficiency of the detector is calibrated. After the calibration is completed, the natural standard source is returned to its original position. The software parameters are continued to be set, the X-axis module 7 and the Y-axis module 5 are moved to the specified position, the metal product is moved to the center of the neutron detector, the count within 10 minutes is measured, and finally the neutron detector is turned off and the data transmitted to the host computer is processed and calculated to obtain the neutron background measurement value. By analogy, the neutron background data of the remaining metal products in the same batch are measured.

[0073] The present application is described in detail above in conjunction with the accompanying drawings and embodiments, but the present application is not limited to the above embodiments, and various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the present application. Any content not described in detail in the present application can adopt the existing technology.

Claims

1. A device for measuring neutron background of metal products, characterized in that: The device comprises: a grabbing component (3), a supporting steel frame (4) and a moving component; The moving component is fixed on the supporting steel frame (4), and one end of the grabbing component (3) is connected to the moving component and moves under the drive of the moving component; The other end of the grabbing assembly (3) is provided with a clamping claw (9) for grabbing a standard source or a metal product to be measured.

2. The device for measuring neutron background of metal products according to claim 1, characterized in that: The motion assembly comprises: a linear guide rail (1), a Z-axis telescopic module (2), a Y-axis module (5) and an X-axis module (7); The linear guide rail (1) and the Y-axis module (5) are fixed in parallel on the supporting steel frame (4); the two ends of the X-axis module (7) are respectively arranged on the linear guide rail (1) and the Y-axis module (5), and can move along the linear guide rail (1) and the Y-axis module (5); One end of the Z-direction telescopic module (2) is connected to the X-axis module (7), and the other end is connected to the grabbing assembly (3), and is used to drive the grabbing assembly (3) to telescope in the Z direction; the X-axis module (7) is used to drive the Z-direction telescopic module (2) to move in the X-axis direction.

3. The device for measuring neutron background of metal products according to claim 2, characterized in that: The motion assembly further comprises: a drag chain (6); The drag chain (6) is installed on the X-axis module (7) and the Y-axis module (5) to play a traction and protection role.

4. The device for measuring neutron background of metal products according to any one of claims 1 to 3, characterized in that: The gripping assembly (3) specifically comprises: a connecting rod (11), a buffer spring (12), a mounting flange (13), a gripper mounting plate (18), a transition mounting plate (19), a guide shaft (20) and a connecting plate (21); The two ends of the connecting rod (11) are respectively connected to one end of the gripper mounting plate (18) and one end of the transition mounting plate (19); the two ends of the guide shaft (20) are respectively connected to the other end of the transition mounting plate (19) and one end of the connecting plate (21); the buffer spring (12) is sleeved on the guide shaft (20); the other end of the connecting plate (21) is connected to the Z-direction telescopic module (2) via a mounting flange (13); The other end of the gripper mounting plate (18) is connected to the gripper (9) via the pneumatic gripper (10).

5. The device for measuring neutron background of metal products according to any one of claims 1 to 3, characterized in that: The Z-direction telescopic module (2) specifically comprises: a multi-stage electric cylinder (14), a servo motor (15), a speed reducer (16) and an air pipe (8); The servo motor (15) is connected to the multi-stage electric cylinder (14); the multi-stage electric cylinder (14) is connected to the grasping component (3) through the air pipe (8) to drive the grasping component (3) to move.

6. The device for measuring neutron background of metal products according to claim 5, characterized in that: The Z-direction telescopic module (2) specifically includes: a reducer (16) The servo motor (15) is connected to the multi-stage electric cylinder (14) via a speed reducer (16).

7. The device for measuring neutron background of metal products according to any one of claims 1 to 3, characterized in that: A polyurethane clamping block (17) is fixed on the inner side of the clamping claw (9) to protect the grasped object.

8. The device for measuring neutron background of metal products according to any one of claims 1 to 3, characterized in that: The device further comprises: a neutron detector; The neutron detector is arranged at the lower end of the clamping jaw (9).

9. A method for measuring neutron background of metal products, characterized in that: The device for measuring neutron background of metal products according to any one of claims 1 to 8; the method comprising: Use neutron detectors to obtain natural background counts; Moving the grabbing component (3) to a designated position to grab a standard source, placing the standard source at the center of a neutron detector, and measuring the count of the standard source; After the standard source is returned to its original position, the metal product to be measured is grabbed by a grabbing assembly (3), and the metal product is placed at the center of the neutron detector to measure the count of the metal product; The neutron background of the metal product is obtained according to the natural background count, the standard source count and the metal product count.

10. The method for measuring neutron background of metal products according to claim 9, characterized in that: The method is implemented by using a PLC controller.

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