阅读说明：本技术 核燃料棒外观表面缺陷及尺寸检测装置 (Nuclear fuel rod appearance surface defect and size detection device ) 是由 凌云 何勇 黎泉佐 黄田 杨学光 易茂丽 于 2019-09-30 设计创作，主要内容包括：本发明公开了一种核燃料棒外观表面缺陷及尺寸检测装置,包括上料机架和下料机架,在上料机架上并排依次布置的上料存料机构、测长支撑机构、环规测试支撑机构、上料纵传支撑机构,安置于上料机架上形成燃料棒搬移过渡的上料顶推搬移机构,设置于上料机架和下料机架之间的表面视觉检测组件,设置于在下料机架上的下料纵传支撑机构,与下料纵传支撑机构并排布置的下料存料机构,位于下料存料机构下方的坏料存料机构,下好料顶推搬移机构,以及下坏料顶推搬移机构。本发明利用顶推搬移机构保证了燃料棒在机构上短距离平稳搬移,不会受到损伤,同时配备的检测机构对燃料棒的外观表面缺陷进行了全面检测,提高了检测自动化程度。(The invention discloses a nuclear fuel rod appearance surface defect and size detection device which comprises a loading rack and a blanking rack, a loading material storage mechanism, a length measurement supporting mechanism, a ring gauge testing supporting mechanism and a loading longitudinal transmission supporting mechanism which are sequentially arranged on the loading rack side by side, a loading material pushing and moving mechanism arranged on the loading rack to form fuel rod moving transition, a surface vision detection assembly arranged between the loading rack and the blanking rack, a blanking longitudinal transmission supporting mechanism arranged on the blanking rack, a blanking material storage mechanism arranged with the blanking longitudinal transmission supporting mechanism side by side, a bad material storage mechanism, a blanking material pushing and moving mechanism and a blanking bad material pushing and moving mechanism positioned below the blanking material storage mechanism. The fuel rod short-distance stable moving mechanism ensures that the fuel rod is stably moved in a short distance on the mechanism without being damaged by the pushing moving mechanism, and meanwhile, the equipped detection mechanism comprehensively detects the appearance surface defects of the fuel rod, so that the detection automation degree is improved.)

1. A nuclear fuel rod appearance surface defect and size detection device is characterized by comprising a feeding rack and a discharging rack which are stably supported and arranged side by side, a feeding material storage mechanism, a length measurement supporting mechanism, a ring gauge testing supporting mechanism, a feeding longitudinal transmission supporting mechanism which are arranged on the feeding rack in parallel in sequence, a feeding pushing and moving mechanism which is arranged on the feeding rack and forms fuel rod moving transition among the feeding material storage mechanism, the length measurement supporting mechanism, the ring gauge testing supporting mechanism and the feeding longitudinal transmission supporting mechanism, a surface visual detection assembly which is arranged between the feeding rack and the discharging rack and corresponds to the feeding longitudinal transmission supporting mechanism and is used for fuel rod to pass through for detection, a discharging longitudinal transmission supporting mechanism which is arranged on the discharging rack and corresponds to the surface visual detection assembly, and a discharging material storage mechanism which is arranged on the discharging rack and is arranged side by side with the discharging longitudinal transmission supporting mechanism, the blanking device comprises a blanking rack, a bad material storage mechanism, a blanking pushing and moving mechanism and a bad material pushing and moving mechanism, wherein the bad material storage mechanism is arranged on the blanking rack and is positioned below the blanking storage mechanism, the blanking pushing and moving mechanism is arranged on the blanking mechanism and forms good material moving transition between a blanking longitudinal transmission supporting mechanism and the blanking storage mechanism, and the blanking pushing and moving mechanism is arranged on the blanking mechanism and forms bad material moving transition between the blanking longitudinal transmission supporting mechanism and the bad material storage mechanism.

2. The apparatus of claim 1, wherein the loading and storing mechanism includes a loading frame fixedly connected to the loading frame, a loading rail disposed on the loading frame and inclined toward the unloading direction, a loading support rod made of an abrasion-resistant material disposed on the loading rail, and a loading stopper disposed at an end of the loading rail facing the unloading direction, wherein an upper portion of the loading stopper protrudes from the loading support rod.

3. The apparatus of claim 1, wherein the length measuring support mechanism includes a plurality of length measuring support guide wheels fixed to the loading frame and arranged along the axial direction of the fuel rod, a length measuring station formed by the length measuring support guide wheels, length measuring cylinders disposed on the loading frame and located at two ends of the length measuring station, and a micrometer disposed on the length measuring cylinders and corresponding to the length measuring station.

4. The apparatus as claimed in claim 1, wherein the ring gauge testing support mechanism includes a plurality of ring gauge support guide wheels fixed to the loading frame and arranged along an axial direction of the fuel rod, a ring gauge testing station formed by the ring gauge support guide wheels, passing assemblies disposed on the loading frame and respectively disposed at two ends of the ring gauge testing station and corresponding to the ring gauge testing station, and ring gauge moving clamps disposed on the loading frame and corresponding to the passing assemblies.

5. The device for detecting the appearance surface defects and the sizes of the nuclear fuel rods according to any one of claims 1 to 4, wherein the feeding longitudinal transmission supporting mechanism comprises a plurality of upper longitudinal transmission supporting guide wheels which are fixed on a feeding rack and are arranged along the axial direction of the fuel rods, an upper longitudinal transmission station formed by the upper longitudinal transmission supporting guide wheels, a longitudinal transmission base which is arranged on the feeding rack and is positioned between the upper longitudinal transmission station and the surface visual detection assembly, a longitudinal transmission driving wheel which is arranged on the longitudinal transmission base and corresponds to the upper longitudinal transmission station, a longitudinal transmission motor which is arranged on the longitudinal transmission base and is used for driving the longitudinal transmission driving wheel, a longitudinal transmission driven wheel which is arranged above the longitudinal transmission driving wheel through a guide rail, and a longitudinal transmission pressing cylinder which is used for driving the longitudinal transmission driven wheel to move up and down.

6. The nuclear fuel rod appearance surface defect and size detection device of claim 5, wherein the structure of the blanking longitudinal support mechanism is the same as the structure of the loading longitudinal support mechanism.

7. The nuclear fuel rod appearance surface defect and size detecting device according to any one of claims 1 to 4, wherein the feeding pushing and moving mechanism includes a feeding pushing transition plate which forms a fuel rod moving transition among the feeding stock mechanism, the length measuring support mechanism, the ring gauge testing support mechanism and the feeding longitudinal transmission support mechanism, an upper pushing seat for placing the feeding pushing transition plate, a lower pushing seat which is arranged below the upper pushing seat and connected with the feeding frame, a vertical support column which is fixed on the lower pushing seat, a pushing column which is fixedly connected with the upper pushing seat at the top and is connected with a guide sleeve on the vertical support column at the middle part, a pushing inclined slider which is arranged at the bottom of the pushing column, a horizontal push rod which is transversely arranged in a guide sleeve arranged on the lower pushing seat, a horizontal push cylinder which is connected with the lower pushing seat at one end and is connected with the horizontal push rod at the other end, and a pushing connecting plate which is fixed on the horizontal push rod, and a pushing inclined guide rod which is obliquely arranged on the pushing connecting plate and is matched with the pushing inclined slide block.

8. The nuclear fuel rod appearance surface defect and size detection device of claim 7, wherein the structures of the lower good material pushing and moving mechanism and the lower bad material pushing and moving mechanism are the same as the structure of the feeding pushing and moving mechanism.

9. The nuclear fuel rod appearance surface defect and size detection device of any one of claims 1 to 4, wherein the blanking storage mechanism comprises a blanking support fixedly connected with the moving rack, a blanking guide rail arranged on the blanking support and inclined towards the blanking direction, a blanking support rod made of wear-resistant material arranged on the blanking guide rail, a blanking guide block arranged at the end part of one end of the blanking guide rail towards the feeding direction, and a blanking stop block arranged at the end part of one end of the blanking guide rail towards the blanking direction, wherein the upper end of the blanking guide block is flush with the upper surface of the blanking support rod.

10. The nuclear fuel rod apparent surface defect and size detecting device according to claim 9, wherein the structure of the bad material stock mechanism is the same as the structure of the blanking material stock mechanism.

Technical Field

The invention relates to a nuclear fuel rod surface defect detection technology, in particular to a nuclear fuel rod appearance surface defect and size detection device.

Background

The nuclear fuel is in the form of uranium dioxide ceramic pellets sintered from uranium mix powder. The ceramic core block is a cylinder with the diameter of 1 cm and the height of 1 cm. Several hundred pellets are stacked together and packed into a tube of an elongated zirconium alloy material of 1 cm diameter, about 4 meters in length and about 1 mm in thickness, which is called a fuel rod because the nuclear fission reaction is like burning atoms. In the use of the fuel rod, the defects of scratches and the like on the surface need to be avoided as much as possible so as to avoid extremely bad influence caused by the accidental burst condition in the reactor. Therefore, the surface defects of the fuel rod need to be correspondingly detected after the fuel rod is manufactured. The invention aims to improve the automation level and the detection efficiency of the scratch detection of the surface of the fuel rod, reduce the labor intensity of inspectors and improve the inspection conditions of the inspectors. Generally, the detection of the surface condition of the fuel rod involves the aspects of the length of the fuel rod, the outer diameter of a welding seam, fine defects on the surface of the rod, and the like, and the conventional equipment in the field cannot perform comprehensive detection on the aspects, so that improvement is needed.

Disclosure of Invention

Aiming at the problems in the prior art, the invention provides the nuclear fuel rod appearance surface defect and size detection device which is high in automation level, high in detection efficiency and good in detection comprehensiveness.

In order to achieve the purpose, the technical scheme is as follows:

a nuclear fuel rod appearance surface defect and size detection device comprises a feeding rack and a discharging rack which are stably supported and arranged side by side, a feeding material storage mechanism, a length measurement supporting mechanism, a ring gauge testing supporting mechanism and a feeding longitudinal transmission supporting mechanism which are arranged on the feeding rack side by side in sequence, a feeding pushing and moving mechanism which is arranged on the feeding rack and forms fuel rod moving transition among the feeding material storage mechanism, the length measurement supporting mechanism, the ring gauge testing supporting mechanism and the feeding longitudinal transmission supporting mechanism, a surface visual detection assembly which is arranged between the feeding rack and the discharging rack and corresponds to the feeding longitudinal transmission supporting mechanism and is used for fuel rod passing detection, a discharging longitudinal transmission supporting mechanism which is arranged on the discharging rack and corresponds to the surface visual detection assembly, and a discharging material storage mechanism which is arranged on the discharging rack and is arranged side by side with the discharging longitudinal transmission supporting mechanism, the blanking device comprises a blanking rack, a bad material storage mechanism, a blanking pushing and moving mechanism and a bad material pushing and moving mechanism, wherein the bad material storage mechanism is arranged on the blanking rack and is positioned below the blanking storage mechanism, the blanking pushing and moving mechanism is arranged on the blanking mechanism and forms good material moving transition between a blanking longitudinal transmission supporting mechanism and the blanking storage mechanism, and the blanking pushing and moving mechanism is arranged on the blanking mechanism and forms bad material moving transition between the blanking longitudinal transmission supporting mechanism and the bad material storage mechanism.

Specifically, the feeding and storing mechanism comprises a feeding support fixedly connected with the feeding frame, a feeding guide rail arranged on the feeding support and inclined towards the discharging direction, a feeding support rod made of wear-resistant materials and arranged on the feeding guide rail, and a feeding stop block arranged at the end part of the feeding guide rail towards one end in the discharging direction, wherein the upper part of the feeding stop block protrudes out of the feeding support rod.

Specifically, the length measurement supporting mechanism comprises a plurality of length measurement supporting guide wheels which are fixed on the feeding rack and are distributed along the axial direction of the fuel rods, a length measurement station formed by the length measurement supporting guide wheels, length measurement cylinders which are arranged on the feeding rack and are respectively positioned at two ends of the length measurement station, and a micrometer which is arranged on the length measurement cylinders and corresponds to the length measurement station.

Specifically, the ring gauge testing and supporting mechanism comprises a plurality of ring gauge supporting guide wheels which are fixed on the feeding rack and are distributed along the axial direction of the fuel rods, a ring gauge testing station formed by the ring gauge supporting guide wheels, passing assemblies which are arranged on the feeding rack, are respectively positioned at two ends of the ring gauge testing station and correspond to the ring gauge testing station, and ring gauge pushing clamps which are arranged on the feeding rack and correspond to the passing assemblies.

The feeding longitudinal transmission supporting mechanism comprises a plurality of upper longitudinal transmission supporting guide wheels which are fixed on a feeding rack and are distributed along the axial direction of fuel rods, an upper longitudinal transmission station formed by the upper longitudinal transmission supporting guide wheels, a longitudinal transmission base which is arranged on the feeding rack and is positioned between the upper longitudinal transmission station and the surface visual detection assembly, a longitudinal transmission driving wheel which is arranged on the longitudinal transmission base and corresponds to the upper longitudinal transmission station, a longitudinal transmission motor which is arranged on the longitudinal transmission base and is used for driving the longitudinal transmission driving wheel, a longitudinal transmission driven wheel which is arranged above the longitudinal transmission driving wheel through a guide rail, and a longitudinal transmission pressing cylinder which is used for driving the longitudinal transmission driven wheel to move up and down.

And the structure of the blanking longitudinal transmission supporting mechanism is the same as that of the feeding longitudinal transmission supporting mechanism.

Specifically, the feeding pushing moving mechanism comprises a feeding pushing transition plate which forms the moving transition of the fuel rods among the feeding storage mechanism, the length measuring supporting mechanism, the ring gauge testing supporting mechanism and the feeding longitudinal transmission supporting mechanism, the device comprises an upper pushing seat for placing a feeding pushing transition plate, a lower pushing seat arranged below the upper pushing seat and connected with a feeding rack, a vertical support column fixed on the lower pushing seat, a pushing column fixedly connected with the upper pushing seat at the top and connected with a guide sleeve on the vertical support column at the middle part, a pushing inclined slider arranged at the bottom of the pushing column, a transverse push rod transversely arranged in the guide sleeve arranged on the lower pushing seat, a transverse pushing cylinder with one end connected with the lower pushing seat and the other end connected with the transverse push rod, a pushing connecting plate fixed on the transverse push rod, and a pushing inclined guide rod obliquely arranged on the pushing connecting plate and matched with the pushing inclined slider.

And the structures of the lower good material pushing and moving mechanism and the lower bad material pushing and moving mechanism are the same as the structures of the feeding pushing and moving mechanism.

Furthermore, the blanking material storage mechanism comprises a blanking support fixedly connected with the moving rack, a blanking guide rail arranged on the blanking support and inclined towards the blanking direction, a blanking support rod made of wear-resistant materials and arranged on the blanking guide rail, a blanking guide block arranged at the end part of the blanking guide rail towards one end of the feeding direction, and a blanking stop block arranged at the end part of the blanking guide rail towards one end of the blanking direction, wherein the upper end of the blanking guide block is flush with the upper surface of the blanking support rod.

And the structure of the bad material storage mechanism is the same as that of the blanking material storage mechanism.

Compared with the prior art, the invention has the following beneficial effects:

(1) the invention uses the feeding pushing moving mechanism to form dislocation combination among the feeding storage mechanism, the length measurement supporting mechanism, the ring gauge testing supporting mechanism and the feeding longitudinal transmission supporting mechanism, skillfully realizes the moving transition of fuel rods, ensures that the fuel rods can be stably moved in a short distance on the mechanism without being damaged, is provided with the mechanisms of length detection, ring gauge detection and surface defect detection to comprehensively detect the appearance surface defects of the fuel rods, and uses the feeding and discharging longitudinal transmission supporting mechanism to transmit the fuel rods to move longitudinally between the feeding and discharging racks, so that the feeding and discharging mechanisms can be seamlessly connected, the continuity of the whole detection process is ensured, the structure is skillful, the mechanization degree is high, the use is convenient, and the application value is very high.

(2) The feeding and storing mechanism, the discharging and storing mechanism and the pushing transition plate are arranged in a way that the supporting surfaces are slightly inclined, and roll-sliding movement is performed under the action of the gravity of the fuel rods, so that the fuel rods can be well moved in short distance on each mechanism to avoid damage, and the reliability of the detection process is improved.

(3) The length measurement supporting mechanism and the ring gauge testing supporting mechanism are combined by the detection assembly and the supporting assembly, so that the effective integration among structures is realized, the length measurement supporting mechanism and the ring gauge testing supporting mechanism are conveniently connected with the fuel rod moving process, meanwhile, the detection on the corresponding defect condition is realized, and the comprehensiveness and the continuity of the whole detection process are greatly improved.

(4) The feeding pushing transition plate is ingeniously designed, and a multi-stage pushing moving structure is adopted to simultaneously form moving transition among the feeding storage mechanism, the length measuring supporting mechanism, the ring gauge testing supporting mechanism and the feeding longitudinal transmission supporting mechanism, so that the feeding, discharging and moving processes of fuel rods on the same station can be synchronously and continuously carried out, and the efficiency of the fuel rod detection process is greatly improved.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention.

Fig. 2 is a side view schematic of the feeder frame portion.

Fig. 3 is a schematic top view of a part of the loading frame.

Fig. 4 is a schematic structural diagram of the feeding and storing mechanism and the length measuring and supporting mechanism.

FIG. 5 is a schematic structural diagram of a ring gauge test support mechanism.

Fig. 6 is a schematic structural view of a feeding longitudinal transmission supporting mechanism.

FIG. 7 is a schematic structural view of a loading, pushing and moving mechanism.

Fig. 8 is a schematic structural view of a feeding pushing transition plate.

Fig. 9 is a schematic structural view of a one-stage pushing transition plate.

Fig. 10 is a schematic structural view of a surface vision inspection assembly.

Fig. 11 is a side view of a blanking frame portion.

Fig. 12 is a schematic top view of a blanking frame portion.

Fig. 13 is a schematic structural diagram of the blanking stock mechanism and the bad stock mechanism.

Detailed Description

The present invention will be further described with reference to the following description and examples, which include, but are not limited to, the following examples.