CN219336757U

CN219336757U - Nuclear fuel pipe cutting-off measuring device

Info

Publication number: CN219336757U
Application number: CN202223162100.3U
Authority: CN
Inventors: 刘宝桐; 刘杰; 底乐; 何明融; 贾晓东; 刘飞; 李超; 胡斌; 温志远
Original assignee: China North Nuclear Fuel Co Ltd
Current assignee: China North Nuclear Fuel Co Ltd
Priority date: 2022-11-28
Filing date: 2022-11-28
Publication date: 2023-07-14
Anticipated expiration: 2032-11-28

Abstract

The utility model provides a nuclear fuel pipe cutting measurement device, which comprises a transmission line main body, wherein a main cutting table and an auxiliary cutting table are respectively arranged at two ends of the transmission line main body, a servo sliding table mechanism and a pipe rotating mechanism are respectively arranged on the main cutting table and the auxiliary cutting table, two pipe feeding mechanisms are arranged on the transmission line main body, one pipe feeding mechanism and the servo sliding table mechanism and the pipe rotating mechanism on the main cutting table form linear arrangement, the other pipe feeding mechanism and the servo sliding table mechanism and the pipe rotating mechanism on the auxiliary cutting table form linear arrangement, and two online projection image measuring instruments are arranged on the transmission line main body. The nuclear fuel pipe cutting measuring device provided by the utility model can directly measure the length after cutting the nuclear fuel pipe.

Description

Nuclear fuel pipe cutting-off measuring device

Technical Field

The utility model relates to the technical field of nuclear fuel pipe processing, in particular to a pipe cutting and measuring device.

Background

The existing automatic pipe cutting machine is mainly used for cutting stainless steel pipes, and usually only one or more of cutting, end face flattening, chamfering or length measuring functions are finished, for example, on-line length measuring cannot be directly carried out after cutting, other equipment is used for length measuring, various functions cannot be flexibly combined, and the adjustment amount required to be carried out after changing a processing task or a processing mode is large.

Disclosure of Invention

The utility model aims to provide a nuclear fuel pipe cutting measurement device which solves the problems of on-line length measurement after various pipe processing and long pipe processing.

In order to achieve the above object, the present utility model provides the following technical solutions:

the utility model provides a nuclear fuel pipe cuts off measuring device, includes the transmission line main part, the both ends of transmission line main part are equipped with main cutting off the platform and vice cutting off the platform respectively, main cutting off the platform with vice cutting off the platform and all installing servo slipway mechanism and pipe rotary mechanism, be equipped with two pipe feeding mechanisms in the transmission line main part, one of them pipe feeding mechanism with main cutting off bench servo slipway mechanism with pipe rotary machine constitutes sharp the arranging, another pipe feeding mechanism with vice cutting off bench servo slipway mechanism with pipe rotary machine constitutes sharp the arranging, be equipped with two online projection image measuring apparatu in the transmission line main part.

As an implementation mode, a group of feeding and discharging supporting mechanisms are respectively arranged on the arrangement straight lines of the main cutting table and the auxiliary cutting table, and each feeding and discharging supporting mechanism comprises a feeding and discharging sliding plate, a V-shaped groove and a roller mechanism.

As an implementation manner, the roller mechanism comprises an air cylinder and 4 rollers, wherein the rollers are arranged above the air cylinder, and the 4 rollers are arranged in a two-to-two manner.

As an embodiment, the arrangement is provided with a set of brushes mounted in a straight line.

As an implementation manner, two sides of the transmission line main body are provided with an feeding buffer rack and a discharging buffer rack.

As an implementation manner, the servo sliding table mechanism comprises an axial servo motor, a radial servo motor, a cutting-off knife, a positioning stop block and a chamfering knife, wherein the chamfering knife and the cutting-off knife are arranged on two sides of the positioning stop block, and the axial servo motor and the radial servo motor drive the servo sliding table mechanism to move.

As an implementation mode, the pipe rotating mechanism comprises a spindle motor, a reduction gearbox and a power head which are in transmission connection, a guide cylinder is connected to one side of a power head transmission shaft in a threaded connection mode, an air chuck is connected with the power head, and the air chuck drives a conical sleeve to advance or retreat.

As an implementation manner, the pipe rotating mechanism further comprises a collet chuck and an air cooling head, wherein the collet chuck is connected to the power head through root threads, and the air cooling head is arranged on the air chuck.

As an implementation mode, send tub mechanism includes servo motor, electric jar, guide rail, layer board, clamp pipe cylinder, preceding backup pad and cylinder mounting panel, the layer board is installed on servo electric jar's the slider, preceding backup pad the guide pillar back backup pad fixed mounting is in on the layer board, the cylinder mounting panel slides along the guide pillar through linear bearing, back backup pad with install the spring between the cylinder mounting panel, clamp pipe cylinder is fixed on the cylinder mounting panel.

As an embodiment, a chip discharge port is provided between the servo slide mechanism and the pipe rotating mechanism.

Compared with the prior art, the nuclear fuel pipe cutting measuring device provided by the utility model has the following beneficial effects:

the nuclear fuel pipe cutting measuring device provided by the utility model can directly measure the length after cutting the nuclear fuel pipe.

Furthermore, the utility model adopts one device to automatically cut and length and has flexible processing mode, can select whether to chamfer the inside and outside or not except the functions of cutting off and flat end surfaces, can select double-side or single-side processing, and can accurately measure the length of the tube after cutting off the long tube. The method adopts the modes of air cooling and water flooding of zirconium scraps in the processing process, so that the problems that a long tube is difficult to clean and the zirconium scraps are easy to catch fire are avoided.

Drawings

In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, it being obvious that the drawings in the following description are only some embodiments of the utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic diagram of a nuclear fuel pipe cutting measurement device according to an embodiment of the present utility model;

FIG. 2 is a schematic diagram of a servo slipway mechanism according to an embodiment of the present utility model;

FIG. 3 is a schematic view of a tube rotation mechanism according to an embodiment of the present utility model;

FIG. 4 is a schematic structural view of a loading and unloading supporting mechanism and a brush according to an embodiment of the present utility model;

FIG. 5 is a schematic view of a self-centering tube gripping device according to an embodiment of the present utility model;

FIG. 6 is a schematic structural diagram of a pipe feeding mechanism according to an embodiment of the present utility model;

fig. 7 is a schematic diagram of the length measurement and cutting principle of the present utility model.

Reference numerals illustrate:

1-a main cutting table; 2-a secondary cutting station; 3-a servo slipway mechanism; 4-tube rotation mechanism; 5-chip removal port; 6-a transmission line body; 7-feeding buffer storage frames; 8-blanking buffer racks; 9-loading and unloading supporting mechanisms; 10-a middle slideway; 11-a brush; 12-an on-line projection image measuring instrument; 13-a pipe feeding mechanism; 14-a workpiece; 15-an axial servo motor; 16-radial servo motor; 17-a cutting knife; 18-positioning a stop block; 19-chamfering tool; 20-a spindle motor; 21-a reduction gearbox; 22-a guide cylinder; 23-power head; 24-an air chuck; 25-a conical sleeve; 26-collet chuck; 27-an air cooling head; 28-a tube up-down sliding plate; 29-V-grooves; 30-a roller mechanism; 31-roller; 32-cylinder; 33-a servo motor; 34-electric cylinder; 35-a guide rail; 36-supporting plate; 37-pipe clamping cylinder; 38-nylon jacket; 39-a front support plate; 40-guide posts; 41-linear bearings; 42-a cylinder mounting plate; 43-spring; 44-a rear support plate; 45-proximity switch.

Detailed Description

Further details are provided below with reference to the specific embodiments.

As shown in fig. 1 to 5, the present utility model provides a nuclear fuel pipe cutting measurement device including a main cutting stage 1 (main cutting station), a sub cutting stage 2 (sub cutting station), a transmission line main body 6, the main cutting stage 1 and the sub cutting stage 2 being disposed at both ends of the transmission line main body 6, respectively.

The main cutting table 1 and the auxiliary cutting table 2 are respectively provided with a servo sliding table mechanism 3 and a pipe rotating mechanism 4. The pipe rotating mechanism 4 is arranged at one end of the cutting table and is in a straight line with the feeding and discharging supporting mechanism 9 of the transmission line, the servo sliding table mechanism 3 is arranged at the other end of the cutting table and can move axially and radially in a certain range, a chip removing port 5 is formed in a table top between the servo sliding table mechanism 3 and the pipe rotating mechanism 4, and zirconium chips can fall into a water tank below the table top through the chip removing port.

As shown in fig. 2, the servo slide mechanism 3 includes an axial servo motor 15, a radial servo motor 16, a cutoff knife 17, a positioning stopper 18, and a chamfering knife 19. The cutting knife 17 is used for cutting to a fixed length and a flat end surface, and the chamfering knife 19 is used for chamfering the inside and outside of the pipe. The positioning stops 18 determine the initial position of the tubing for use as a reference for machining and measurement. The axial servo motor 15 and the radial servo motor 16 are arranged at 90 degrees on the circumferential side of the servo slipway mechanism.

The cutter is driven by the servo sliding table to carry out processing operation according to a PLC program setting route, and the feed speed is matched with the spindle rotation speed so as to obtain the optimal pipe end processing effect. The processing mode is flexible, and the internal angle or the external angle can be selected to be chamfered besides the functions of cutting off and flattening the end face.

As shown in fig. 3, the pipe rotating mechanism 4 comprises a spindle motor 20, a reduction gearbox 21 and a power head 23 which are in transmission connection, a guide cylinder 22 is connected to one side of a transmission shaft of the power head 23 in a threaded connection mode, an air chuck 24 is connected with the power head 23, and a conical sleeve 25 can advance or retreat under the drive of the air chuck 24. The collet 26 is connected to the power head 23 by the root threads, and pipes with different diameters are processed, and only the collet 26 with different sizes needs to be replaced. The air chuck 24 is provided with an air cooling head 27 to ensure cooling during processing.

As shown in fig. 4, the feeding and discharging support mechanism 9 includes a feeding and discharging slide plate 28, a V-shaped groove 29, and a roller mechanism 30, and brushes 11 are provided at intervals of a large interval to support the tubes. The upper and lower pipe sliding plate 28 is driven by the air cylinder to lift, and the inclined surface of the upper and lower pipe sliding plate is used for shifting the pipe from the single pipe on the feeding buffer frame 7 to the V-shaped groove 29 or from the single pipe on the V-shaped groove 29 to the discharging buffer frame 8.

As shown in fig. 5, the roller mechanism 30 includes 4 rollers 31 and an air cylinder 32. The double-row roller 31 is driven by the cylinder 32 to transversely open and close, clamps the pipe to the center of the roller, realizes centering and clamping of the workpiece 14 (pipe), and can assist the rotation of the pipe.

As shown in fig. 6, the pipe feeding mechanism 13 includes a servo motor 33, an electric cylinder 34, a guide rail 35, and a pallet 36, the pallet 36 is mounted on a slider of the servo electric cylinder 34, a front support plate 39, a guide post 40, and a rear support plate 44 are fixedly mounted on the pallet 36, a cylinder mounting plate 42 slides along the guide post 40 through a linear bearing 41, a spring 43 is mounted between the rear support plate 44 and the cylinder mounting plate 42, a pipe clamping cylinder 37 is fixed on the cylinder mounting plate 42, and a nylon jacket 38 is mounted on parallel air claws of the pipe clamping cylinder 37. The pipe feeding process is to clamp the workpiece 14 (pipe) by a nylon jacket 38, the servo motor 33 drives the electric cylinder 34 to move according to a set distance, and the electric cylinder sliding block drives the supporting plate 36 to advance. If the precise positioning is performed, the servo slide mechanism 3 is first moved to a predetermined position so that the positioning stopper 18 is located on the pipe feeding path, and when the pipe end contacts the positioning stopper 18, the cylinder mounting plate 42 is separated from the proximity switch 45, the feeding is stopped immediately, and the air chuck 24 clamps the work 14 (pipe) by the collet 26 through the taper sleeve, and the nylon jacket 38 is opened.

As shown in fig. 7, the length measurement is performed by using the positioning stopper 18 of the servo slide mechanism 3 as a reference, one end of the workpiece tube is fed to the positioning stopper 18 by the tube feeding mechanism 13, the air chuck 24 is operated, the collet 26 holds the tube tightly, and then the position of the tube tail is obtained by the on-line projection image measuring instrument 12. Before each shift, a calibrated standard rod is used to measure the position of the on-line projection image measuring instrument 12, calibrate the system length and then measure the length of other tubes in the same way. The main cutting table 1 and the auxiliary cutting table 2 are respectively provided with a set of length measuring device, the target length and the main station processing amount are required to be set before processing, in the automatic processing process, after the main station processing is carried out, the length measuring is automatically carried out, the length measuring device is used as the basis of the auxiliary station cutting length, and the length measuring after the auxiliary station processing is used for measuring whether the length of a final finished pipe meets the set requirement. Of course, a semiautomatic machining program may be selected to perform only one end machining. The semi-automatic machining process can be selectively set except for cutting and flat end surfaces, and whether the inner chamfer and the outer chamfer are machined or not. Length measurement method: after the slide table is positioned, one end of the tube is sent to the servo slide table stop block to be tightly propped, the other end of the tube is just in the detection area of the online projection image measuring instrument 12, and the system can give relative length values (relative to a standard rod for verification).

The utility model is suitable for zirconium material processing, has wide applicable diameter types and flexible function combination; the length of the long tube is conveniently measured, and the length is measured on line.

The foregoing is merely illustrative of the present utility model, and the present utility model is not limited thereto, and any changes or substitutions easily contemplated by those skilled in the art within the scope of the present utility model should be included in the scope of the present utility model. Therefore, the protection scope of the present utility model shall be subject to the protection scope of the claims.

Claims

1. The utility model provides a nuclear fuel pipe cuts off measuring device, its characterized in that includes transmission line main part (6), the both ends of transmission line main part (6) are equipped with main cutting off platform (1) and vice cutting off platform (2) respectively, main cutting off platform (1) with vice cutting off platform (2) have all installed servo slip table mechanism (3) and pipe rotary mechanism (4), be equipped with two on transmission line main part (6) and send tub mechanism (13), one of them send tub mechanism (13) with main cutting off on platform (1) servo slip table mechanism (3) with pipe rotary mechanism (4) become sharp to be arranged, another send tub mechanism (13) with vice cutting off on platform (2) servo slip table mechanism (3) with pipe rotary mechanism (4) become sharp to be arranged, be equipped with two on transmission line main part (6) and project image measuring apparatu (12).

2. The nuclear fuel pipe cutting measurement device according to claim 1, wherein a group of feeding and discharging support mechanisms (9) are respectively installed on the arrangement straight lines of the main cutting table (1) and the auxiliary cutting table (2), and the feeding and discharging support mechanisms (9) comprise feeding and discharging slide plates (28), V-shaped grooves (29) and roller mechanisms (30).

3. The nuclear fuel pipe cutting measurement device according to claim 2, wherein the roller mechanism (30) comprises a cylinder (32) and 4 rollers (31), the rollers (31) are arranged above the cylinder (32), and the 4 rollers (31) are arranged two by two.

4. The nuclear fuel pipe cutting measurement device according to claim 2, wherein a set of brushes (11) is mounted on the arrangement straight line.

5. The nuclear fuel pipe cutting measurement device according to claim 1, wherein both sides of the transmission line main body (6) are provided with an feeding buffer rack (7) and a discharging buffer rack (8).

6. The nuclear fuel pipe cutting measurement device according to claim 1, wherein the servo slipway mechanism (3) comprises an axial servo motor (15), a radial servo motor (16), a cutting knife (17), a positioning stop block (18) and a chamfering knife (19), the chamfering knife (19) and the cutting knife (17) are arranged at two sides of the positioning stop block (18), and the axial servo motor (15) and the radial servo motor (16) drive the servo slipway mechanism (3) to move.

7. The nuclear fuel pipe cutting measurement device according to claim 1, wherein the pipe rotating mechanism (4) comprises a spindle motor (20), a reduction gearbox (21) and a power head (23) which are in transmission connection, a guide cylinder (22) is connected to one side of a transmission shaft of the power head (23) in a threaded connection manner, an air chuck (24) is connected with the power head (23), and the air chuck (24) drives a conical sleeve (25) to advance or retract.

8. The nuclear fuel pipe shut-off measurement device according to claim 7, wherein the pipe rotation mechanism (4) further comprises a collet (26) and an air-cooled head (27), the collet (26) being connected to the power head (23) by a root screw thread, the air-cooled head (27) being provided to the air chuck (24).

9. The nuclear fuel pipe cutting measurement device according to claim 1, wherein the pipe feeding mechanism (13) comprises a servo motor (33), an electric cylinder (34), a guide rail (35), a pallet (36), a pipe clamping cylinder (37), a front support plate (39) and a cylinder mounting plate (42), the pallet (36) is mounted on a sliding block of the electric cylinder (34), the front support plate (39), a guide post (40) and a rear support plate (44) are fixedly mounted on the pallet (36), the cylinder mounting plate (42) slides along the guide post (40) through a linear bearing (41), a spring (43) is mounted between the rear support plate (44) and the cylinder mounting plate (42), and the pipe clamping cylinder (37) is fixed on the cylinder mounting plate (42).

10. The nuclear fuel pipe cutting measurement device according to claim 1, characterized in that a chip discharge port (5) is provided between the servo slipway mechanism (3) and the pipe rotating mechanism (4).