Heavy water reactor new fuel rod bundle interlocking detection device

Abstract

The invention belongs to the technical field of heavy water reactor nuclear power plant auxiliary facilities, and particularly relates to a heavy water reactor new fuel rod bundle interlocking detection device. Comprising a lifting mechanism, a transverse moving mechanism and an interlocking detection mechanism, the lifting mechanism achieves lifting movement of the interlocking detection mechanism, and the transverse moving mechanism achieves transverse movement of the interlocking detection mechanism. The lifting mechanism is composed of a lifting servo electric cylinder, a lifting upper connecting plate, lifting linear shafts, a coupler and an interlocking detection mechanism mounting plate, the upper ends and the lower ends of the four lifting linear shafts are connected with the lifting upper connecting plate and the interlocking detection mechanism mounting plate through screws respectively, and the lifting servo electric cylinder is connected with the interlocking detection mechanism mounting plate through the coupler. The device is suitable for realizing automatic high-precision detection of the outer diameter of the new fuel rod bundle of the heavy water reactor, and has the functions of adjustable clamping force, self-alignment, force measurement protection and the like so as to meet the interlocking detection requirement of the new fuel rod bundle.

Description

Technical Field

[0001] The present invention belongs to the technical field of auxiliary facilities for heavy water reactor nuclear power plants, and particularly relates to an interlock detection device for new fuel rod bundles of heavy water reactors. Background Art

[0002] The interlock detection device for new fuel rod bundles of heavy water reactors is an auxiliary facility of the fuel operating system, and is a set of devices specially designed to automatically detect whether there is an interlock for new fuel rod bundles before they are put into the reactor during the refueling process without shutting down the heavy water reactor. The process of interlock detection for new fuel rod bundles in a heavy water reactor unit is as follows: the interlock detection mechanism moves above the new fuel rod bundle, the interlock detection mechanism descends and clamps the new fuel rod bundle, and by detecting whether the outer diameter of the new fuel rod bundle exceeds the tolerance, it is judged whether there is an interlock for the new fuel rod bundle, and the interlock detection of the new fuel rod bundle is completed.

[0003] After years of operation of the heavy water reactor unit, due to the proximity to the reactor core in the rod bundle loading area, the average gamma dose in the area is about 0.06 mSv / h. As the operation time of the unit extends, the radiation dose will continue to increase. Currently, the total dose received by the operator during manual interlock detection before the rod bundle is put into the reactor at the refueling site is about 0.3 mSv / person.year. Secondly, when performing manual interlock detection, it is impossible to accurately control the closing force of the caliper, and it is easy to be misaligned, resulting in measurement errors.

[0004] In view of the above situation, it is necessary to design an interlock detection device for new fuel rod bundles of heavy water reactors, which is integrated into the newly developed automatic loading equipment for new fuel rod bundles. It can not only greatly reduce the radiation dose level received by on-site operators, reduce labor intensity, and improve the new fuel loading efficiency, but also ensure that the fuel rod bundle is prevented from falling and breaking during the loading process, and improve the safety and reliability during the new fuel loading process. Summary of the Invention

[0005] The purpose of the present invention is to provide an interlock detection device for new fuel rod bundles of heavy water reactors, which is suitable for realizing the automatic high-precision detection of the outer diameter of new fuel rod bundles of heavy water reactors, and has functions such as adjustable clamping force, self-aligning, and force measurement protection to meet the interlock detection requirements of new fuel rod bundles.

[0006] To achieve the above purpose, the technical solution adopted by the present invention is as follows: An interlock detection device for new fuel rod bundles of heavy water reactors includes a lifting mechanism, a transverse movement mechanism, and an interlock detection mechanism. The lifting mechanism realizes the lifting movement of the interlock detection mechanism, and the transverse movement mechanism realizes the lateral movement of the interlock detection mechanism.

[0007] The lifting mechanism consists of a lifting servo electric cylinder, an upper lifting connecting plate, a lifting linear shaft, a coupling, and an interlock detection mechanism mounting plate. The upper and lower ends of the 4 lifting linear shafts are respectively connected to the upper lifting connecting plate and the interlock detection mechanism mounting plate by screws. The lifting servo electric cylinder is connected to the interlock detection mechanism mounting plate through a coupling.

[0008] When the lifting servo electric cylinder is fixed, the piston of the lifting servo electric cylinder expands and contracts, so as to realize the up and down movement of the overall structure composed of the interlock detection mechanism mounting plate, the upper lifting connecting plate and the lifting linear shaft, and thus realize the lifting movement of the interlock detection mechanism.

[0009] The transverse movement mechanism consists of a transverse movement linear guide rail, a transverse movement connecting plate, a bearing seat, a transverse movement cylinder and a transverse movement cylinder buffer. The 2 transverse movement cylinder buffers are connected and fixed to both ends of the transverse movement cylinder by screws; both sides of the transverse movement connecting plate are connected to the transverse movement cylinder and the slider of the transverse movement linear guide rail by screws; the 4 bearing seats are connected and fixed to the transverse movement connecting plate through shaft hole fit and screws.

[0010] The piston of the transverse movement cylinder moves to drive the transverse movement connecting plate to move transversely, so as to realize the transverse movement of the interlock detection mechanism.

[0011] The 4 lifting linear shafts of the lifting mechanism pass through the 4 bearing seats of the transverse movement mechanism, and the plane positioning is realized through shaft hole fit; the lifting servo electric cylinder is fixed by connecting it to the transverse movement connecting plate with screws; the interlock detection mechanism is connected to the interlock detection mechanism mounting plate of the lifting mechanism by screws.

[0012] The structure of the interlock detection mechanism is as follows: The two sliders of the toothed belt type servo electric cylinder are respectively connected to the left servo slider connecting plate and the right servo slider connecting plate by screws. The left servo slider connecting plate and the right servo slider connecting plate are respectively connected to the left opening and closing linear guide rail and the right opening and closing linear guide rail by screws. The left opening and closing linear guide rail and the right opening and closing linear guide rail are respectively connected to the left opening and closing guide rail slider connecting plate and the right opening and closing guide rail slider connecting plate by screws. The displacement sensor triggering component is connected to the right opening and closing guide rail slider connecting plate by screws. The displacement sensor is connected and fixed to the displacement sensor mounting plate. The displacement sensor mounting plate is connected to the left opening and closing guide rail slider connecting plate by screws. The left force sensor mounting plate A and the right force sensor mounting plate A are respectively connected to the right opening and closing guide rail slider connecting plate and the left opening and closing guide rail slider connecting plate by screws. The right compression spring is in shaft hole fit with the right spring core shaft. The left compression spring is in shaft hole fit with the shaft hole of the left spring core shaft and is coaxially screwed and fixed with the right force sensor and the left force sensor. The right force sensor guide shaft and the left force sensor guide shaft are respectively connected and fixed to the right opening and closing guide rail slider connecting plate and the left opening and closing guide rail slider connecting plate by screws. The left force sensor mounting plate B and the right force sensor mounting plate B are respectively connected to the right opening and closing guide rail slider connecting plate and the left opening and closing guide rail slider connecting plate by screws. The left force sensor mounting plate B and the right force sensor mounting plate B are respectively connected to the left micro-motion linear guide rail and the right micro-motion linear guide rail by screws. The lower right connecting plate A, the lower right connecting plate B, the upper right connecting plate A, the lower left connecting plate A, the upper left connecting plate A, and the upper left connecting plate B are respectively installed on the left, right, upper, and lower sides. The upper and lower sides of the left micro-motion linear guide rail and the right micro-motion linear guide rail are respectively installed with the upper right compression spring, the upper right spring core shaft, the lower right compression spring, the lower right spring core shaft, the lower left compression spring, the lower left spring core shaft, the upper left compression spring, and the upper left spring core shaft.

[0013] The displacement sensor is connected and fixed to the displacement sensor mounting plate by screws through a displacement sensor buckle.

[0014] The opening and closing movements of the two sliders of the belt type servo electric cylinder realize the opening and closing movements of the left opening and closing guide rail slider connecting plate and the right opening and closing guide rail slider connecting plate, and drive the opening and closing operations of the right C-shaped gauge and the left C-shaped gauge. During the clamping process of the belt type servo electric cylinder, whether the right C-shaped gauge and the left C-shaped gauge are concentric with the clamping rod bundle realizes up and down fine adjustment and floating. At the same time, during the clamping process, the right force sensor and the left force sensor and the spring components realize whether the clamping force is overloaded and the opening and closing micro-motion adjustment. After the left C-shaped gauge and the right C-shaped gauge are closed, the displacement sensor triggering component contacts the displacement sensor, so as to realize the detection of the closing gap size of the gauge and judge whether there is an abnormality in the outer diameter of the clamping rod bundle.

[0015] The beneficial effects achieved by the present invention are as follows: Realize automatic operation: Adopt a servo electric cylinder and PLC control to achieve a fully automated measurement technical means, and achieve the technical effects of automatic detection and replacing manual labor.

[0016] Provide higher-precision measurement: By using the contact displacement sensor technology, the technical effect of a measurement accuracy of ≤±0.01 mm is achieved, meeting the measurement requirements of precision rod bundles.

[0017] The clamping force is adjustable: The clamping force range is (4±0.05) Kg, and it has a clamping capacity of at least 10 kg, adapting to the rod bundle measurement with different clamping force requirements.

[0018] Add self-aligning function: By using a floating spring and a floating frame guide rail slider, the automatic alignment of the C-type caliper is realized, eliminating errors and ensuring measurement accuracy.

[0019] Have the function of real-time detection of position and clamping force: During the interlock detection of new fuel rod bundles, a protection mechanism of double detection and judgment of position and clamping force is adopted to prevent product damage. Description of the drawings

[0020] Figure 1 Is an axonometric view of an interlock detection device for heavy water reactor nuclear fuel rod bundles; Figure 2 Is an axonometric view of the lifting mechanism of an interlock detection device for heavy water reactor nuclear fuel rod bundles; Figure 3 Is an axonometric view of the transverse movement mechanism of an interlock detection device for heavy water reactor nuclear fuel rod bundles; Figure 4 Is an axonometric view of the interlock detection mechanism of an interlock detection device for heavy water reactor nuclear fuel rod bundles; In the figure: 1. Lifting mechanism; 2. Transverse movement mechanism; 3. Interlock detection mechanism; 101. Lifting servo electric cylinder; 102. Upper connecting plate of lifting; 103. Lifting linear shaft; 104. Coupling; 105. Mounting plate of interlock detection mechanism; 201. Transverse movement linear guide rail; 202. Transverse movement connecting plate; 203. Bearing seat; 204. Transverse movement cylinder; 205. Buffer of transverse movement cylinder; 301. Tooth belt type servo electric cylinder; 302. Right servo slider connecting plate; 303. Right opening and closing linear guide rail; 304. Displacement sensor trigger part; 305. Right opening and closing guide rail slider connecting plate; 306. Right force sensor mounting plate A; 307. Right compression spring; 308. Right spring core shaft; 309. Right force measuring sensor; 310. Right force measuring sensor guiding shaft; 311. Right force sensor mounting plate B; 312. Right micro-movement linear guide rail; 313. Lower right connecting plate A; 314. Lower right connecting plate B; 315. Lower right compression spring; 316. Lower right spring core shaft; 317. Upper right connecting plate A; 318. Upper right compression spring; 319. Upper right spring core shaft; 320. Right C-shaped gauge; 321. Left servo slider connecting plate; 322. Left opening and closing linear guide rail; 323. Displacement sensor; 324. Displacement sensor mounting plate; 325. Displacement sensor buckle; 326. Left opening and closing guide rail slider connecting plate; 327. Left force sensor mounting plate A; 328. Left force measuring sensor; 329. Left spring core shaft; 330. Left compression spring; 331. Left force measuring sensor guiding shaft; 332. Left force sensor mounting plate B; 333. Lower left connecting plate A; 334. Lower left compression spring; 335. Lower left spring core shaft; 336. Left micro-movement linear guide rail; 337. Upper left connecting plate A; 338. Upper left compression spring; 339. Upper left spring core shaft; 340. Upper left connecting plate B; 341. Left C-shaped gauge. Detailed implementation mode

[0021] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] As Figures 1-4 Shown in the figure, the interlock detection device for heavy water reactor nuclear fuel rod bundles consists of three parts: a lifting mechanism 1, a transverse movement mechanism 2, and an interlock detection mechanism 3. Among them, the 4 lifting linear shafts 103 of the lifting mechanism 1 pass through the 4 bearing seats 203 of the transverse movement mechanism 2, and planar positioning is achieved through shaft-hole cooperation; the lifting servo electric cylinder 101 is connected to the transverse movement connecting plate 202 by screws to fix the lifting servo electric cylinder 101; the interlock detection mechanism 3 is connected to the mounting plate 105 of the interlock detection mechanism of the lifting mechanism 1 by screws. During the working process, the lifting and lowering movement of the lifting servo electric cylinder 101 of the lifting mechanism 1 realizes the lifting and lowering movement of the interlock detection mechanism 3, and the movement of the transverse movement cylinder 204 of the transverse movement mechanism 2 drives the interlock detection mechanism 3 to achieve lateral movement.

[0023] The lifting mechanism 1 is composed of a lifting servo electric cylinder 101, a lifting upper connecting plate 102, a lifting linear shaft 103, a coupling 104, and an interlock detection mechanism mounting plate 105. Among them, the upper and lower ends of the 4 lifting linear shafts 103 are respectively connected to the lifting upper connecting plate 102 and the interlock detection mechanism mounting plate 105 by screws, and the lifting servo electric cylinder 101 is connected to the interlock detection mechanism mounting plate 105 through the coupling 104. When the lifting servo electric cylinder 101 is fixed, the piston of the lifting servo electric cylinder 101 expands and contracts, so as to realize the up and down movement of the overall structure composed of the interlock detection mechanism mounting plate 105, the lifting upper connecting plate 102, and the lifting linear shaft 103, thereby realizing the lifting movement of the interlock detection mechanism 3.

[0024] The transverse movement mechanism 2 is composed of a transverse movement linear guide rail 201, a transverse movement connecting plate 202, a bearing seat 203, a transverse movement cylinder 204, and a transverse movement cylinder buffer 205. Among them, the 2 transverse movement cylinder buffers 205 are fixedly connected to both ends of the transverse movement cylinder 204 by screws; both sides of the transverse movement connecting plate 202 are connected to the slider of the transverse movement cylinder 204 and the transverse movement linear guide rail 201 by screws; the 4 bearing seats 203 are fixedly connected to the transverse movement connecting plate 202 through shaft hole fit and screws. The main function of the transverse movement mechanism 2 is: the piston movement of the transverse movement cylinder 204 drives the transverse movement connecting plate 202 to move horizontally, thereby realizing the horizontal movement of the interlock detection mechanism 3.

[0025] The interlock detection mechanism 3 is composed of a toothed belt type servo electric cylinder 301, a right servo slider connecting plate 302, a right opening and closing linear guide rail 303, a displacement sensor trigger part 304, a right opening and closing guide rail slider connecting plate 305, a right force sensor mounting plate A 306, a right compression spring 307, a right spring core shaft 308, a right force sensor 309, a right force sensor guiding shaft 310, a right force sensor mounting plate B 311, a right micro-movement linear guide rail 312, a lower right connecting plate A 313, a lower right connecting plate B 314, a lower right compression spring 315, a lower right spring core shaft 316, an upper right connecting plate A 317, an upper right compression spring 318, an upper right spring core shaft 319, a right C-shaped gauge 320, a left servo slider connecting plate 321, a left opening and closing linear guide rail 322, a displacement sensor 323, a displacement sensor mounting plate 324, a displacement sensor buckle 325, a left opening and closing guide rail slider connecting plate 326, a left force sensor mounting plate A 327, a left force sensor 328, a left spring core shaft 329, a left compression spring 330, a left force sensor guiding shaft 331, a left force sensor mounting plate B 332, a lower left connecting plate A 333, a lower left compression spring 334, a lower left spring core shaft 335, a left micro-movement linear guide rail 336, an upper left connecting plate A 337, an upper left compression spring 338, an upper left spring core shaft 339, an upper left connecting plate B 340, and a left C-shaped gauge 341.

[0026] The two sliders of the toothed belt type servo electric cylinder 301 are respectively connected to the left servo slider connecting plate 321 and the right servo slider connecting plate 302 by screws. The left servo slider connecting plate 321 and the right servo slider connecting plate 302 are respectively connected to the left opening and closing linear guide 322 and the right opening and closing linear guide 303 by screws. The left opening and closing linear guide 322 and the right opening and closing linear guide 303 are respectively connected to the left opening and closing guide slider connecting plate 326 and the right opening and closing guide slider connecting plate 305 by screws. The displacement sensor trigger component 304 is connected to the right opening and closing guide slider connecting plate 305 by screws. The displacement sensor 323 is fixedly connected to the displacement sensor mounting plate 324 by screws through the displacement sensor buckle 325, and the displacement sensor mounting plate 324 is connected to the left opening and closing guide slider connecting plate 326 by screws. The left force sensor mounting plate A327 and the right force sensor mounting plate A306 are respectively connected to the right opening and closing guide slider connecting plate 305 and the left opening and closing guide slider connecting plate 326 by screws.

[0027] The right compression spring 307 is in shaft hole fit with the right spring core shaft 308. The left compression spring 330 is in shaft hole fit with the left spring core shaft 329 and is coaxially fixedly installed with the right force sensor 309 and the left force sensor 328 by screws, so as to realize the clamping force detection and elastic buffering when the force is overloaded. The right force sensor guide shaft 310 and the left force sensor guide shaft 331 are respectively connected to the right opening and closing guide slider connecting plate 305 and the left opening and closing guide slider connecting plate 326 by screws to realize the guiding and positioning during the process of the left and right calipers clamping the rod bundle. The left force sensor mounting plate B332 and the right force sensor mounting plate B311 are respectively connected to the right opening and closing guide slider connecting plate 305 and the left opening and closing guide slider connecting plate 326 by screws. The left force sensor mounting plate B332 and the right force sensor mounting plate B311 are respectively connected to the left micro-motion linear guide 336 and the right micro-motion linear guide 312 by screws. The lower right connecting plate A313, the lower right connecting plate B314, the upper right connecting plate A317, the lower left connecting plate A333, the upper left connecting plate A337, and the upper left connecting plate B340 are respectively installed on the left and right upper and lower sides and are connected by screws. And the upper right compression spring 318, the upper right spring core shaft 319, the lower right compression spring 315, the lower right spring core shaft 316, the lower left compression spring 334, the lower left spring core shaft 335, the upper left compression spring 338, and the upper left spring core shaft 339 are respectively installed on the upper and lower sides of the left micro-motion linear guide 336 and the right micro-motion linear guide 312 by screws, so as to realize the up and down floating fine-tuning function during the clamping process of the right C-shaped gauge 320 and the left C-shaped gauge 341.

[0028] The opening and closing movement of the two sliders of the belt type servo cylinder 301 realizes the opening and closing movement of the left opening and closing guide rail slider connecting plate 326 and the right opening and closing guide rail slider connecting plate 305, and drives the opening and closing operation of the right C-shaped gauge 320 and the left C-shaped gauge 341. During the clamping process of the belt type servo cylinder 301, whether the right C-shaped gauge 320 and the left C-shaped gauge 341 are concentric with the clamped rod bundle is realized to achieve up and down fine adjustment and floating; at the same time, during the clamping process, the right force measuring sensor 309, the left force measuring sensor 328 and the spring components are installed on both sides, so as to realize whether the clamping force is overloaded and the opening and closing fine adjustment. After the left C-shaped gauge 341 and the right C-shaped gauge 320 are closed, the displacement sensor trigger component 304 contacts the displacement sensor 323, so as to realize the detection of the closing gap size of the gauge and judge whether there is an abnormality in the outer diameter of the clamped rod bundle.

Claims

1. A new fuel rod bundle interlock detection device for a heavy water reactor, characterized in that: It includes a lifting mechanism, a transverse movement mechanism and an interlock detection mechanism. The lifting mechanism realizes the lifting movement of the interlock detection mechanism, and the transverse movement mechanism realizes the lateral movement of the interlock detection mechanism.

2. The new fuel rod bundle interlock detection device for a heavy water reactor according to claim 1, characterized in that: The lifting mechanism consists of a lifting servo electric cylinder, an upper lifting connecting plate, a lifting linear shaft, a coupling and an interlock detection mechanism mounting plate. The upper and lower ends of the 4 lifting linear shafts are respectively connected to the upper lifting connecting plate and the interlock detection mechanism mounting plate by screws, and the lifting servo electric cylinder is connected to the interlock detection mechanism mounting plate through a coupling.

3. The new fuel rod bundle interlock detection device for a heavy water reactor according to claim 2, wherein: When the lifting servo electric cylinder is fixed, the piston of the lifting servo electric cylinder expands and contracts, so as to realize the up and down movement of the overall structure composed of the interlock detection mechanism mounting plate, the upper lifting connecting plate and the lifting linear shaft, and thus realize the lifting movement of the interlock detection mechanism.

4. The new fuel rod bundle interlock detection device for a heavy water reactor according to claim 2, characterized in that: The transverse movement mechanism consists of a transverse movement linear guide rail, a transverse movement connecting plate, a bearing seat, a transverse movement cylinder and a transverse movement cylinder buffer. The 2 transverse movement cylinder buffers are fixedly connected at both ends of the transverse movement cylinder by screws; both sides of the transverse movement connecting plate are connected to the transverse movement cylinder and the slider of the transverse movement linear guide rail by screws; the 4 bearing seats are fixedly connected to the transverse movement connecting plate through shaft hole matching and screws.

5. The new fuel rod bundle interlock detection device for a heavy water reactor according to claim 4, characterized in that: The piston movement of the transverse movement cylinder drives the transverse movement connecting plate to move laterally, so as to realize the lateral movement of the interlock detection mechanism.

6. The new fuel rod bundle interlock detection device for a heavy water reactor according to claim 4, wherein: The 4 lifting linear shafts of the lifting mechanism pass through the 4 bearing seats of the transverse movement mechanism, and the plane positioning is realized through shaft hole matching; the lifting servo electric cylinder is fixed by connecting it to the transverse movement connecting plate with screws; the interlock detection mechanism is connected to the interlock detection mechanism mounting plate of the lifting mechanism by screws.

7. The new fuel rod bundle interlock detection device for a heavy water reactor according to claim 1, characterized in that: The structure of the interlock detection mechanism is as follows: The two sliders of the toothed belt type servo electric cylinder are respectively connected to the left servo slider connecting plate and the right servo slider connecting plate by screws. The left servo slider connecting plate and the right servo slider connecting plate are respectively connected to the left opening and closing linear guide rail and the right opening and closing linear guide rail by screws. The left opening and closing linear guide rail and the right opening and closing linear guide rail are respectively connected to the left opening and closing guide rail slider connecting plate and the right opening and closing guide rail slider connecting plate by screws. The displacement sensor trigger component is connected to the right opening and closing guide rail slider connecting plate by screws. The displacement sensor is connected and fixed to the displacement sensor mounting plate. The displacement sensor mounting plate is connected to the left opening and closing guide rail slider connecting plate by screws. The left force sensor mounting plate A and the right force sensor mounting plate A are respectively connected to the right opening and closing guide rail slider connecting plate and the left opening and closing guide rail slider connecting plate by screws. The right compression spring is in shaft hole fit with the right spring core shaft. The left compression spring is in shaft hole fit with the shaft hole of the left spring core shaft and is coaxially screwed and fixed with the right force sensor and the left force sensor. The right force sensor guide shaft and the left force sensor guide shaft are respectively connected and fixed to the right opening and closing guide rail slider connecting plate and the left opening and closing guide rail slider connecting plate by screws. The left force sensor mounting plate B and the right force sensor mounting plate B are respectively connected to the right opening and closing guide rail slider connecting plate and the left opening and closing guide rail slider connecting plate by screws. The left force sensor mounting plate B and the right force sensor mounting plate B are respectively connected to the left micro-motion linear guide rail and the right micro-motion linear guide rail by screws. The lower right connecting plate A, the lower right connecting plate B, the upper right connecting plate A, the lower left connecting plate A, the upper left connecting plate A, and the upper left connecting plate B are respectively installed on the left, right, upper, and lower sides. The upper and lower sides of the left micro-motion linear guide rail and the right micro-motion linear guide rail are respectively installed with the upper right compression spring, the upper right spring core shaft, the lower right compression spring, the lower right spring core shaft, the lower left compression spring, the lower left spring core shaft, the upper left compression spring, and the upper left spring core shaft.

8. The interlock detection device for the new fuel rod bundle of the heavy water reactor according to claim 7, characterized in that: The displacement sensor is connected and fixed to the displacement sensor mounting plate by screws through the displacement sensor buckle.

9. The new fuel rod bundle interlock detection device for a heavy water reactor according to claim 7, characterized in that: The opening and closing movement of the two sliders of the belt type servo electric cylinder realizes the opening and closing movement of the left opening and closing guide rail slider connecting plate and the right opening and closing guide rail slider connecting plate, and drives the opening and closing operation of the right C-shaped gauge and the left C-shaped gauge. During the clamping process of the belt type servo electric cylinder, whether the right C-shaped gauge and the left C-shaped gauge are concentric with the clamping rod bundle realizes up and down fine adjustment and floating. At the same time, during the clamping process, the right force sensor and the left force sensor and the spring components realize whether the clamping force is overloaded and the opening and closing micro-motion adjustment. After the left C-shaped gauge and the right C-shaped gauge are closed, the displacement sensor trigger component contacts the displacement sensor, so as to realize the detection of the size of the closing gap of the caliper and judge whether there is an abnormality in the outer diameter of the clamping rod bundle.

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