Automatic measurement device and method for neutron background of block-shaped product

Abstract

The invention belongs to the technical field of neutron background measurement, and particularly relates to an automatic measurement device and method for a neutron background of a blocky product. The device comprises a workbench, a neutron detector, an input mechanism and a transfer mechanism, the neutron detector is arranged on the upper end face of the workbench, the neutron detector can measure the number of neutron bases of blocky products and send measured data to a station machine, and the input mechanism is arranged on the front side of the neutron detector and used for inputting the blocky products and transferring the blocky products to the station machine. And the transfer mechanism is fixedly arranged on the surface of the working table, is arranged above the neutron detector and is used for transferring the blocky products into the neutron detector. According to the invention, the working intensity of workers can be greatly reduced, and the neutron background measurement efficiency of blocky products is greatly improved.

Description

Technical Field

[0001] The invention belongs to the technical field of neutron background measurement, and in particular relates to an automatic neutron background measurement device and method for block products. Background Art

[0002] When a batch of block products is produced in the workshop, the process requires the use of a neutron detector to measure the neutron background number of each product, and then determine whether the tested product is qualified. Among them, the structure of the block product is as follows Figure 1 As shown, its shape is cylindrical. The method for measuring the neutron background number of block products in a workshop is:

[0003] S1. The worker first takes out a block product to be measured from the material basket, and then opens the cover plate on the top of the neutron detector to expose the through hole under the cover plate;

[0004] S2. The worker puts the block product into the neutron detector through the through hole, and then the worker puts the cover plate back on the through hole; the neutron detector measures the neutron background number of the block product put in, and records the measured data. The worker calculates the neutron background number based on the recorded value, and judges whether the measured block product is qualified according to the calculated value, thereby realizing the measurement of the neutron background of the first block product;

[0005] S3. The worker opens the cover of the neutron detector and then takes the measured block product out from the through hole of the neutron detector;

[0006] S4. The worker repeats steps S1 to S3 for multiple times to continuously measure the neutron background of multiple block products.

[0007] However, although the method in the workshop can measure the neutron background of multiple bulk products, it still has the following technical defects:

[0008] I. In step S2, it is necessary to manually open the cover on the neutron detector first, and then manually put the block product to be measured into the neutron detector through the through hole. The entire operation is manually performed, which not only increases the work intensity of the workers, but also increases the measurement time of the neutron background of a single block product, thereby reducing the measurement efficiency of the neutron background of the block product.

[0009] II. In step S3, the cover on the neutron detector needs to be opened manually before the bulk product in the neutron detector can be taken out. The entire taking-out operation is also done manually, which undoubtedly further increases the workload of the workers. Therefore, there is an urgent need for a measuring device and method that greatly reduces the workload of workers and greatly improves the efficiency of neutron background measurement of bulk products. Summary of the invention

[0010] The technical problem solved by the present invention is to provide an automatic measurement device and method for the neutron background of bulk products, which can greatly reduce the work intensity of workers and greatly improve the efficiency of neutron background measurement of bulk products.

[0011] The technical solution adopted by the present invention is:

[0012] A device for automatically measuring the neutron background of bulk products comprises a workbench, a neutron detector, an input mechanism and a transfer mechanism. The neutron detector is arranged on the upper end surface of the workbench. The neutron detector can measure the neutron background number of bulk products and send the measured data to a workstation. The input mechanism is arranged on the front side of the neutron detector and is used to input bulk products. The transfer mechanism is fixed on the workbench surface and arranged above the neutron detector and is used to transfer the bulk products into the neutron detector.

[0013] A through hole is provided at the center of the neutron detector, and the block product is placed in the through hole.

[0014] A cover opening mechanism is arranged directly above the through hole, and the cover opening mechanism comprises a rotary pressing cylinder, a cantilever, a connecting rod and a cover plate. The rotary pressing cylinder is fixedly arranged on the upper surface of the neutron detector, one end of the cantilever is fixedly connected to the acting end of the rotary pressing cylinder piston rod, and the other end is fixedly provided with a connecting rod. A cover plate is fixedly arranged at the bottom of the connecting rod, and the cover plate cooperates with the through hole to seal the through hole.

[0015] The transfer mechanism includes a right frame, a Y-axis screw module, an X-axis screw module, a vertical electric cylinder, a clamping cylinder, and three clamping claws. The right frame is located on the right side of the neutron detector. The Y-axis screw module is fixedly provided on the upper surface of the right frame. A movable moving part Y is provided on the Y-axis screw module. An X-axis screw module is provided on the moving part Y. A movable moving part X is provided on the X-axis screw module. The Y-axis screw module and the X-axis screw module are vertical. A vertical electric cylinder is fixedly provided on the front end surface of the moving part X. A clamping cylinder is fixedly provided on the action end of the piston rod of the vertical electric cylinder. The three clamping claws on the clamping cylinder are all arranged downward.

[0016] The transfer mechanism also includes a left frame fixed on the upper surface of the workbench and located on the left side of the neutron detector. A longitudinally arranged guide rail is fixed on the top surface of the left frame. A slider is fixed on the left end of the X-axis screw module, and the slider is slidably installed on the guide rail.

[0017] A vertical plate is fixedly arranged on the front end surface of the moving part X, and a cylinder body of the vertical electric cylinder is fixedly arranged on the front end surface of the vertical plate.

[0018] The input mechanism is arranged longitudinally, and comprises a linear module, a shelf, and a carrier. The linear module is fixed on the workbench surface, the moving part of the linear module is fixed with a shelf, the upper surface of the shelf is placed with a carrier, and the top surface of the carrier is provided with a plurality of blind holes, and a block product to be measured is placed in each blind hole.

[0019] Buffer pads are fixedly arranged on the inner walls of the three clamping claws of the clamping cylinder.

[0020] The workstation is connected to and controlled by a vertical electric cylinder, a clamping cylinder, a linear module, a Y-axis lead screw module, an X-axis lead screw module and a neutron detector.

[0021] A method for automatically measuring the neutron background of a bulk product is based on an automatic neutron background measuring device for a bulk product, and comprises the following steps:

[0022] S1, the linear module of the control input mechanism is started, the linear module drives the moving part on it to move backward, the moving part drives the shelf to move backward, the shelf drives the carrier to move backward synchronously, the carrier drives the block products inside it to move backward synchronously, when the block products move backward to the rear end of the linear module, the station machine controls the linear module to close, at this time, the two block products on the carrier just enter the grabbing station of the transfer mechanism;

[0023] S2. Measurement of neutron background of the first bulk product:

[0024] S201, control the X-axis screw module of the transfer mechanism to start, the moving part X of the X-axis screw module drives the vertical plate to move to the right, the vertical plate drives the vertical electric cylinder to move to the right synchronously, and the vertical electric cylinder drives the clamping cylinder to move to the right synchronously. When the three clamping claws of the clamping cylinder move to the top of the first block product, the station machine controls the X-axis screw module to close;

[0025] S202, control the piston rod of the vertical electric cylinder to extend downward, the piston rod drives the clamping cylinder to move downward, and the three clamping jaws on the clamping cylinder move toward the first block product at the same time. When the piston rod extends downward for a certain distance, the three clamping jaws just cover the outside of the first block product; control the clamping cylinder to start, and the three clamping jaws close to clamp and fix the first block product;

[0026] S203, control the piston rod of the vertical electric cylinder to retract, the piston rod drives the clamping cylinder to move upward, the clamping cylinder drives the clamped block product to move upward, and the block product is lifted;

[0027] S204, controlling the linkage movement of the X-axis screw rod module and the Y-axis screw rod module to move the clamped block product to the position directly above the through hole of the neutron detector;

[0028] S205, controlling the rotary pressing cylinder of the cover opening mechanism to start, the piston rod of the rotary pressing cylinder drives the cover plate to rotate, the cover plate is separated from the through hole on the neutron detector, so that the through hole on the top surface of the neutron detector is exposed;

[0029] S206, control the piston rod of the vertical electric cylinder to extend downward, the piston rod drives the clamping cylinder to move downward, the clamping cylinder drives the block product to move downward synchronously, the block product passes through the through hole downward and enters the neutron detector, when the bottom surface of the block product contacts the inner bottom wall of the neutron detector, control the vertical electric cylinder to close; control the clamping cylinder to close, and the three clamping claws on the clamping cylinder open to transfer the block product into the neutron detector;

[0030] S207, after the transfer, the piston rod of the vertical electric cylinder is controlled to retract upward, the piston rod drives the clamping cylinder to move upward, and the clamping cylinder moves out of the neutron detector;

[0031] S208, re-sealing the through hole: controlling the piston rod of the rotary pressing cylinder to rotate in the opposite direction, so that the piston rod drives the cover plate to rotate in the opposite direction, so that the cover plate is re-covered on the through hole, and the through hole of the neutron detector is covered again;

[0032] S209, turning on the neutron detector, the neutron detector measures the neutron background number of the bulk product transported therein, and sends the measured data to the workstation computer, thereby achieving the measurement of the neutron background of the first bulk product;

[0033] S210, when the measurement is completed, first control the rotary pressing cylinder to move so that the cover plate does not cover the through hole, and then control the linkage of the vertical electric cylinder, the clamping cylinder, the X-axis screw module and the Y-axis screw module to put the measured block product back into the blind hole of the carrier;

[0034] S3. Repeat step S2 to perform neutron background measurement on the second block product on the carrier.

[0035] Compared with the prior art, the present invention has the following beneficial effects:

[0036] (1) The present invention provides an automatic measurement device and method for the neutron background of bulk products, which can greatly reduce the workload of workers and greatly improve the efficiency of neutron background measurement of bulk products.

[0037] (2) The present invention provides an automatic measurement device and method for the neutron background of bulk products, which can automatically complete the neutron background measurement of bulk products, realize unmanned operation, and avoid the harm of special products to workers during the measurement process. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 Axonometric drawing for block products;

[0039] Figure 2 A schematic diagram of the structure of a block product neutron background automatic measurement device is provided;

[0040] Figure 3 for Figure 2 The main view of

[0041] Figure 4 for Figure 2 A top view of

[0042] Figure 5 It is a structural diagram of the input mechanism;

[0043] Figure 6 is an axonometric view of the carrier plate;

[0044] Figure 7 It is a schematic diagram of the structure of the transfer mechanism;

[0045] Figure 8 for Figure 7 The main view of

[0046] Fig. 9 for Figure 7 A top view of

[0047] Fig.10 It is a structural schematic diagram of the cover opening mechanism;

[0048] In the figure: 1-block product, 2-workbench, 3-neutron detector, 4-input mechanism, 5-transfer mechanism, 6-cover opening mechanism, 7-rotation pressing cylinder, 8-cantilever, 9-connecting rod, 10-cover plate, 11-through hole; 12-right frame, 13-Y-axis screw rod module, 14-moving part Y, 15-X-axis screw rod module, 16-moving part X, 17-vertical electric cylinder, 18-clamping cylinder, 19-clamping claw, 20-linear module, 21-shelf, 22-carrying plate, 23-left frame, 24-guide rail, 25-slider, 26-vertical plate. DETAILED DESCRIPTION

[0049] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0050] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the 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 orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0051] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" 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 indirectly connected 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.

[0052] like Figure 2 to Figure 10 As shown, the present invention provides an automatic neutron background measurement device for block products, comprising a workbench 2, a neutron detector 3, an input mechanism 4, and a transfer mechanism 5. The neutron detector 3 is arranged on the upper end surface of the workbench 2. The neutron detector 3 can measure the neutron background number of the block product 1 and send the measured data to the station machine. The input mechanism 4 is arranged on the front side of the neutron detector 3 and is used to input the block product 1. The transfer mechanism 5 is fixed on the table of the workbench 2 and arranged above the neutron detector 3 to transfer the block product 1 to the neutron detector 3.

[0053] A through hole 11 is provided at the center of the neutron detector 3, and the block product 1 is placed in the through hole 11. A cover opening mechanism 6 is provided directly above the through hole 11, and the cover opening mechanism 6 includes a rotary pressing cylinder 7, a cantilever 8, a connecting rod 9, and a cover plate 10. The rotary pressing cylinder 7 is fixedly arranged on the upper surface of the neutron detector 3, one end of the cantilever 8 is fixedly connected to the action end of the piston rod of the rotary pressing cylinder 7, and the other end is fixedly provided with a connecting rod 9. A cover plate 10 is fixedly provided at the bottom of the connecting rod 9, and the cover plate 10 cooperates with the through hole 11 to block the through hole 11;

[0054] The transfer mechanism 5 includes a right frame 12, a Y-axis screw module 13, an X-axis screw module 15, a vertical electric cylinder 17, a clamping cylinder 18, and three clamping claws 19. The right frame 12 is located on the right side of the neutron detector 3. The Y-axis screw module 13 is fixedly arranged on the upper surface of the right frame 12. A movable moving part Y14 is arranged on the Y-axis screw module 13. The moving part Y14 is provided with an X-axis screw module 15. The X-axis screw module 15 is provided with a movable moving part X16. The Y-axis screw module 13 and the X-axis screw module 15 are vertical. A vertical electric cylinder 17 is fixedly arranged on the front end surface of the moving part X16. A clamping cylinder 18 is fixedly arranged on the action end of the piston rod of the vertical electric cylinder 17. The three clamping claws 19 on the clamping cylinder 18 are all arranged downward.

[0055] The transfer mechanism 5 also includes a left frame 23 fixed on the upper surface of the workbench 2 and located on the left side of the neutron detector 3. A longitudinal guide rail 24 is fixed on the top surface of the left frame 23. A slider 25 is fixed on the left end of the X-axis screw module 15. The slider 25 is slidably mounted on the guide rail 24.

[0056] A vertical plate 26 is fixedly provided on the front end surface of the moving part X16 , and the cylinder body of the vertical electric cylinder 17 is fixedly provided on the front end surface of the vertical plate 26 .

[0057] The input mechanism 4 is arranged longitudinally, and comprises a linear module 20, a shelf 21, and a carrier 22. The linear module 20 is fixed on the surface of the workbench 2, and the shelf 21 is fixed on the moving part of the linear module 20. The carrier 22 is placed on the upper surface of the shelf 21. A plurality of blind holes are opened on the top surface of the carrier 22, and a block product 1 to be measured is placed in each blind hole.

[0058] Preferably, two blind holes are provided on the top surface of the carrier plate 22, and a block product 1 is placed in each of the two blind holes.

[0059] Buffer pads are fixedly arranged on the inner walls of the three clamping jaws 19 of the clamping cylinder 18 .

[0060] The automated measuring device further comprises a workstation, which is connected to the vertical electric cylinder 17 , the clamping cylinder 18 , the linear module 20 , the Y-axis lead screw module 13 , the X-axis lead screw module 15 and the neutron detector 3 .

[0061] A method for automatically measuring the neutron background of a bulk product comprises the following steps:

[0062] S1, the linear module 20 of the control input mechanism 4 is started, the linear module 20 drives the moving part thereon to move backward, the moving part drives the shelf 21 to move backward, the shelf 21 drives the carrier 22 to move backward synchronously, the carrier 22 drives the block products 1 therein to move backward synchronously, when the block products 1 move backward to the rearmost end of the linear module 20, the station machine controls the linear module 20 to close, at this time, the two block products 1 on the carrier 22 just enter the grabbing station of the transfer mechanism 5;

[0063] S2. Measurement of the neutron background of the first bulk product 1, the specific operation steps are as follows:

[0064] S201, control the X-axis screw module 15 of the transfer mechanism 5 to start, the moving part X16 of the X-axis screw module 15 drives the vertical plate 26 to move rightward, the vertical plate 26 drives the vertical electric cylinder 17 to move rightward synchronously, the vertical electric cylinder 17 drives the clamping cylinder 18 to move rightward synchronously, when the three clamping claws 19 of the clamping cylinder 18 move to the top of the first block product 1, the station machine controls the X-axis screw module 15 to close;

[0065] S202, control the piston rod of the vertical electric cylinder 17 to extend downward, the piston rod drives the clamping cylinder 18 to move downward, and the three clamping jaws 19 on the clamping cylinder 18 move toward the first block product 1 at the same time. When the piston rod extends downward for a certain distance, the three clamping jaws 19 just fit on the outside of the first block product 1; then control the clamping cylinder 18 to start, and the three clamping jaws 19 close to clamp and fix the first block product 1;

[0066] S203, control the piston rod of the vertical electric cylinder 17 to retract, the piston rod drives the clamping cylinder 18 to move upward, and the clamping cylinder 18 drives the clamped block product 1 to move upward, so as to lift the block product 1;

[0067] S204, controlling the linkage movement of the X-axis screw module 15 and the Y-axis screw module 13, so that the clamped block product 1 moves to the position directly above the through hole 11 of the neutron detector 3;

[0068] S205, the rotary pressing cylinder 7 of the cover opening mechanism 6 is controlled to start, and the piston rod of the rotary pressing cylinder 7 drives the cover plate 10 to rotate, and the cover plate 10 is separated from the through hole 11 on the neutron detector 3, so that the through hole 11 located on the top surface of the neutron detector 3 is exposed;

[0069] S206, control the piston rod of the vertical electric cylinder 17 to extend downward, the piston rod drives the clamping cylinder 18 to move downward, the clamping cylinder 18 drives the block product 1 to move downward synchronously, the block product 1 passes through the through hole 11 downward and enters the neutron detector 3, when the bottom surface of the block product 1 contacts the inner bottom wall of the neutron detector 3, control the vertical electric cylinder 17 to close; then control the clamping cylinder 18 to close, and the three clamping claws 19 on the clamping cylinder 18 to open, thereby realizing the transfer of the block product 1 into the neutron detector 3;

[0070] S207, after the transfer, the piston rod of the vertical electric cylinder 17 is controlled to retract upward, and the piston rod drives the clamping cylinder 18 to move upward, and the clamping cylinder 18 moves out of the neutron detector 3;

[0071] S208, re-sealing the through hole 11: controlling the piston rod of the rotary pressing cylinder 7 to rotate in the opposite direction, and the piston rod drives the cover plate 10 to rotate in the opposite direction, so that the cover plate 10 is re-covered on the through hole 11, so as to cover the through hole 11 of the neutron detector 3 again;

[0072] S209, the worker turns on the neutron detector 3, and the neutron detector 3 measures the neutron background number of the block product transferred therein, and sends the measured data to the workstation computer, thereby finally achieving the measurement of the neutron background of the first block product 1;

[0073] S210, when the measurement is completed, the rotary pressing cylinder 7 is first controlled to move so that the cover plate 10 does not cover the through hole 11, and then the vertical electric cylinder 17, the clamping cylinder 18, the X-axis screw module 15 and the Y-axis screw module 13 are controlled to cooperate with each other to put the block product 1 after the measurement back into the blind hole of the carrier 22;

[0074] S3, repeating the operation of step S2, the neutron background measurement of the second block product 1 on the carrier 22 can be performed;

[0075] S4. Repeat steps S2 to S3 for multiple times to continuously measure the neutron background of multiple block products 1.

[0076] Among them, it can be seen from step S2 that the measuring device can automatically separate the cover plate 10 from the through hole 11 on the neutron detector 3 through the action of the rotary pressing cylinder 7 of the cover opening mechanism 6, thereby exposing the through hole 11. At the same time, through the linkage cooperation of the vertical electric cylinder 17, the X-direction screw module 15 and the Y-direction screw module 13 of the transfer mechanism 5, the block product 1 can be automatically placed into the neutron detector 3. It can be seen that there is no need for manual operation in the entire operation, which not only greatly reduces the work intensity of the workers, but also greatly shortens the measurement time of the neutron background of a single block product, thereby greatly improving the measurement efficiency of the neutron background of the block product.

[0077] In addition, in step S30, after the measurement is completed, the cover plate 10 can cover the through hole 11 of the neutron detector 3 by simply controlling the rotary pressing cylinder 7 to move, without manually covering the through hole 11 with the cover plate 10, thereby further reducing the work intensity of the workers.

[0078] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0079] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. An automatic neutron background measurement device for bulk products, characterized in that: The invention comprises a workbench (2), a neutron detector (3), an input mechanism (4), and a transfer mechanism (5); the neutron detector (3) is arranged on the upper end surface of the workbench (2); the neutron detector (3) can measure the neutron background number of the block product (1) and send the measured data to the workstation; the input mechanism (4) is arranged on the front side of the neutron detector (3) and is used to input the block product (1); the transfer mechanism (5) is fixed on the workbench (2) and arranged above the neutron detector (3) and is used to transfer the block product (1) into the neutron detector (3).

2. The automatic neutron background measuring device for bulk products according to claim 1 is characterized in that: A through hole (11) is provided at the center of the neutron detector (3), and the block product (1) is placed in the through hole (11).

3. The automatic neutron background measuring device for bulk products according to claim 2 is characterized in that: A cover opening mechanism (6) is arranged directly above the through hole (11), and the cover opening mechanism (6) comprises a rotary pressing cylinder (7), a cantilever (8), a connecting rod (9), and a cover plate (10). The rotary pressing cylinder (7) is fixedly arranged on the upper surface of the neutron detector (3), one end of the cantilever (8) is fixedly connected to the action end of the piston rod of the rotary pressing cylinder (7), and the other end is fixedly provided with a connecting rod (9). A cover plate (10) is fixedly arranged at the bottom of the connecting rod (9), and the cover plate (10) cooperates with the through hole (11) to seal the through hole (11).

4. The automatic neutron background measuring device for bulk products according to claim 1 is characterized in that: The transfer mechanism (5) comprises a right frame (12), a Y-axis screw rod module (13), an X-axis screw rod module (15), a vertical electric cylinder (17), a clamping cylinder (18), and three clamping claws (19). The right frame (12) is located on the right side of the neutron detector (3). The Y-axis screw rod module (13) is fixedly arranged on the upper surface of the right frame (12). A movable moving part Y (14) is arranged on the Y-axis screw rod module (13). The moving part Y (14) ) is provided with an X-axis screw module (15), and a movable moving part X (16) is provided on the X-axis screw module (15), and the Y-axis screw module (13) and the X-axis screw module (15) are vertical; a vertical electric cylinder (17) is fixedly provided on the front end surface of the moving part X (16), and a clamping cylinder (18) is fixedly provided on the action end of the piston rod of the vertical electric cylinder (17), and three clamping claws (19) on the clamping cylinder (18) are all arranged downward.

5. The automatic neutron background measuring device for bulk products according to claim 4 is characterized in that: The transfer mechanism (5) further comprises a left frame (23) fixedly mounted on the upper surface of the workbench (2) and located on the left side of the neutron detector (3); a longitudinally arranged guide rail (24) is fixedly mounted on the top surface of the left frame (23); a slider (25) is fixedly mounted on the left end of the X-axis screw module (15); and the slider (25) is slidably mounted on the guide rail (24).

6. The automatic neutron background measuring device for bulk products according to claim 4 is characterized in that: A vertical plate (26) is fixedly arranged on the front end surface of the moving part X (16), and a cylinder body of the vertical electric cylinder (17) is fixedly arranged on the front end surface of the vertical plate (26).

7. The automatic neutron background measuring device for bulk products according to claim 1 is characterized in that: The input mechanism (4) is arranged longitudinally, and comprises a linear module (20), a shelf (21), and a carrier (22); the linear module (20) is fixedly arranged on the surface of a workbench (2); the shelf (21) is fixedly arranged on the moving part of the linear module (20); the carrier (22) is placed on the upper surface of the shelf (21); a plurality of blind holes are opened on the top surface of the carrier (22); a block product (1) to be measured is placed in each blind hole.

8. The automatic neutron background measuring device for bulk products according to claim 4 is characterized in that: Buffer pads are fixedly arranged on the inner walls of the three clamping claws (19) of the clamping cylinder (18).

9. The automatic neutron background measuring device for bulk products according to claim 1, characterized in that: The workstation is connected to and controlled by a vertical electric cylinder (17), a clamping cylinder (18), a linear module (20), a Y-axis screw module (13), an X-axis screw module (15) and a neutron detector (3).

10. A method for automatically measuring the neutron background of bulk products, based on an automatic neutron background measuring device for bulk products, characterized in that: The following steps are involved: S1, the linear module (20) of the control input mechanism (4) is started, the linear module (20) drives the moving part thereon to move backward, the moving part drives the shelf (21) to move backward, the shelf (21) drives the carrier (22) to move backward synchronously, the carrier (22) drives the block products (1) therein to move backward synchronously, when the block products (1) move backward to the rearmost end of the linear module (20), the station machine controls the linear module (20) to close, at which time, the two block products (1) on the carrier (22) just enter the grabbing station of the transfer mechanism (5); S2. Measurement of neutron background of the first bulk product (1): S201, control the X-axis screw module (15) of the transfer mechanism (5) to start, the moving part X (16) of the X-axis screw module (15) drives the vertical plate (26) to move rightward, the vertical plate (26) drives the vertical electric cylinder (17) to move rightward synchronously, the vertical electric cylinder (17) drives the clamping cylinder (18) to move rightward synchronously, when the three clamping claws (19) of the clamping cylinder (18) move to the top of the first block product (1), the station machine controls the X-axis screw module (15) to close; S202, control the piston rod of the vertical electric cylinder (17) to extend downward, the piston rod drives the clamping cylinder (18) to move downward, and the three clamping jaws (19) on the clamping cylinder (18) move toward the first block product (1) at the same time. When the piston rod extends downward for a certain distance, the three clamping jaws (19) just fit on the outside of the first block product (1); control the clamping cylinder (18) to start, and the three clamping jaws (19) close to clamp and fix the first block product (1); S203, controlling the piston rod of the vertical electric cylinder (17) to retract, so that the piston rod drives the clamping cylinder (18) to move upward, and the clamping cylinder (18) drives the clamped block product (1) to move upward, thereby lifting the block product (1); S204, controlling the linkage movement of the X-axis screw rod module (15) and the Y-axis screw rod module (13), so that the clamped block product (1) moves to the position directly above the through hole (11) of the neutron detector (3); S205, the rotary pressing cylinder (7) of the cover opening mechanism (6) is controlled to start, and the piston rod of the rotary pressing cylinder (7) drives the cover plate (10) to rotate, so that the cover plate (10) is separated from the through hole (11) on the neutron detector (3), so that the through hole (11) located on the top surface of the neutron detector (3) is exposed; S206, controlling the piston rod of the vertical electric cylinder (17) to extend downward, the piston rod drives the clamping cylinder (18) to move downward, the clamping cylinder (18) drives the block product (1) to move downward synchronously, the block product (1) passes through the through hole (11) downward and enters the neutron detector (3), when the bottom surface of the block product (1) contacts the inner bottom wall of the neutron detector (3), controlling the vertical electric cylinder (17) to close; controlling the clamping cylinder (18) to close, the three clamping claws (19) on the clamping cylinder (18) to open, and transferring the block product (1) into the neutron detector (3); S207, after the transfer, the piston rod of the vertical electric cylinder (17) is controlled to retract upward, and the piston rod drives the clamping cylinder (18) to move upward, and the clamping cylinder (18) moves out of the neutron detector (3); S208, re-sealing the through hole (11): controlling the piston rod of the rotary pressing cylinder (7) to rotate in the opposite direction, so that the piston rod drives the cover plate (10) to rotate in the opposite direction, so that the cover plate (10) is re-covered on the through hole (11), and the through hole (11) of the neutron detector (3) is covered again; S209, turning on the neutron detector (3), the neutron detector (3) measures the neutron background number of the bulk product transferred therein, and sends the measured data to the workstation computer, thereby achieving the measurement of the neutron background of the first bulk product (1); S210, when the measurement is completed, the rotary pressing cylinder (7) is first controlled to move so that the cover plate (10) does not cover the through hole (11), and then the vertical electric cylinder (17), the clamping cylinder (18), the X-axis screw module (15) and the Y-axis screw module (13) are controlled to cooperate with each other so as to put the block product (1) after the measurement into the blind hole of the carrier (22) again; S3, repeat step S2 to perform neutron background measurement on the second block product (1) on the carrier (22).

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