Anti-deformation CRDM nozzle processing clamp

Abstract

The utility model relates to CRDM pipe seat machining technical field, and disclose a kind of anti-deformation's CRDM pipe seat machining clamp, including foundry platform, the top of foundry platform is equipped with two avoid location grooves, the inside of foundry platform is equipped with the moving groove being communicated with avoid location groove, slidingly connected with mounting bracket in moving groove, the top of mounting bracket is slidingly connected with two carriages that can slide in avoid location groove, the side welding of carriage has clamping plate, and two clamping plates are closed as ring type, the both sides inner wall of moving groove are equipped with the guide assembly that the direction of carriage is guided, the bottom inner wall of foundry platform is equipped with the hydraulic cylinder that drives mounting bracket to move up and down, the utility model cooperates with multiple components by clamping plate, and clamping plate clamping embryo adopts mechanical control, can effectively reduce the labor of worker, to relieve worker fatigue, improve the processing efficiency of pipe seat.

Description

Technical Field

[0001] This utility model relates to the field of CRDM pipe seat processing technology, and more specifically to a deformation-resistant CRDM pipe seat processing fixture. Background Technology

[0002] The CRDM tube seat is a key component on the top cover of a nuclear reactor pressure vessel. It is manufactured using a forging process, which involves forging a cylindrical blank into a tubular tube seat.

[0003] When forging a cylindrical blank, a mold sleeve is used to cover the outside of the cylindrical blank to prevent the blank from deforming during forging. Because the combination of the blank and the mold sleeve is heavy, a lot of force is required to flip the blank, and workers are very prone to fatigue, resulting in low production efficiency of the tube seat. Utility Model Content

[0004] In order to overcome the above-mentioned defects of the prior art, the present invention provides a deformation-resistant CRDM pipe seat processing fixture to solve the problems existing in the background art.

[0005] This utility model provides the following technical solution: a fixture for processing CRDM pipe seats to prevent deformation, including a casting table. The top of the casting table has two clearance grooves. The interior of the casting table has a moving groove that communicates with the clearance grooves. A mounting frame is slidably connected in the moving groove. The top of the mounting frame is slidably connected to two slides that can slide in the clearance grooves. A clamp is welded to one side of the slide, and the two clamps are closed into a ring shape. The inner walls on both sides of the moving groove are provided with guide components to guide the movement direction of the slides. The bottom inner wall of the casting table is provided with a hydraulic cylinder to drive the mounting frame to move up and down. The top of the casting table is provided with a blocking component to seal the clearance grooves.

[0006] As a further embodiment of this utility model, the guide assembly includes limiting grooves formed on the inner walls of both sides of the moving groove, limiting blocks are welded to both sides of the two slides, and the limiting blocks slide within the limiting grooves. Both sides of the mounting frame are provided with moving components that drive the slides to reset, and the top of the mounting frame is provided with a pulling component that drives the slides to move toward the blank.

[0007] As a further embodiment of this utility model, the movable component includes electromagnets fixed to the inner walls of both sides of the mounting frame, and a mounting groove is provided on one side of the two slides, with an iron block fixed in the mounting groove by bolts.

[0008] As a further embodiment of this utility model, the pulling assembly includes two fixing plates welded to the top of the mounting bracket, and a tension spring is fixed between the fixing plates and the slide by bolts.

[0009] As a further embodiment of this utility model, the blocking assembly includes a blocking frame fixed to the top of the casting table, and a cover plate is rotatably connected between the inner walls of the two sides of the blocking frame.

[0010] As a further embodiment of this utility model, the top of the cover plate is fixed with an arc-shaped elastic plate by bolts, and the other end of the arc-shaped elastic plate is fixed to the casting table.

[0011] As a further embodiment of this invention, the top corner of both carriages is inclined to compress the rotation of the cover plate.

[0012] The technical effects and advantages of this utility model are as follows:

[0013] 1. This utility model uses a clamping plate in conjunction with multiple components. The clamping plate holds the blank in a mechanically controlled manner, which can effectively reduce the workload of workers, thereby alleviating worker fatigue and improving the processing efficiency of the tube seat.

[0014] 2. This utility model has a guide component, in which the limiting block slides in the limiting groove and is locked into the other end of the limiting groove, thereby locking the position of the slide and completing the clamping of the blank by the clamping plate, thus improving the stability of the clamping plate.

[0015] 3. This utility model has a blocking component, in which the cover plate enters the blocking frame to block the avoidance groove, so that the waste chips during forging can not only enter the casting table through the avoidance groove, but also improve the protective effect of the device. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0017] Figure 2 This is a cross-sectional view of the casting platform of this utility model.

[0018] Figure 3 For the present utility model Figure 2 A magnified structural diagram of the casting platform.

[0019] Figure 4 For the present utility model Figure 2 A partially enlarged structural diagram.

[0020] The attached diagram is labeled as follows: 1. Casting platform; 2. Alternating groove; 3. Clamping plate; 4. Cover plate; 5. Arc-shaped elastic plate; 6. Barrier frame; 7. Mounting bracket; 8. Hydraulic cylinder; 9. Slide; 10. Moving groove; 11. Limiting groove; 12. Fixing plate; 13. Limiting block; 14. Electromagnet; 15. Tension spring; 16. Mounting groove; 17. Iron block. Detailed Implementation

[0021] The technical solution of this utility model will be clearly and completely described below with reference to the accompanying drawings. In addition, the forms of the various structures described in the following embodiments are merely illustrative. This utility model is not limited to the structures described in the following embodiments. All other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0022] Reference Figures 1-4 This utility model provides a CRDM pipe seat processing fixture for preventing deformation, including a casting table 1. The top of the casting table 1 has two clearance grooves 2. The interior of the casting table 1 has a moving groove 10 that communicates with the clearance grooves 2. A mounting frame 7 is slidably connected in the moving groove 10. The top of the mounting frame 7 is slidably connected to two slides 9 that can slide in the clearance grooves 2. A clamping plate 3 is welded to one side of the slides 9, and the two clamping plates 3 are closed into a ring shape. The inner walls on both sides of the moving groove 10 are provided with guide components to guide the movement direction of the slides 9. The bottom inner wall of the casting table 1 is provided with a hydraulic cylinder 8 that drives the mounting frame 7 to move up and down. The top of the casting table 1 is provided with a blocking component to block the clearance grooves 2.

[0023] In use, the tube seat blank is placed on the casting table 1, and the hydraulic cylinder 8 is activated. The hydraulic cylinder 8 extends and drives the mounting bracket 7 to move upward, thereby driving the slide 9 and the clamping plate 3 to move upward. The guide assembly brings the two clamping plates 3 into contact, thereby closing the two clamping plates 3 to form a ring shape, which clamps and limits the tube seat blank. The opening mold is used in conjunction with the forging machine to open the blank, thereby making the blank into a tubular shape. Because the outer periphery of the blank is blocked, the blank cannot expand and thus cannot be deformed. At the same time, the clamping plate 3 clamps the blank by mechanical control, which can effectively reduce the workload of workers, thereby alleviating worker fatigue and improving the processing efficiency of the tube seat.

[0024] In this utility model, the guide component includes a limiting groove 11 opened on the inner wall of both sides of the moving groove 10, a limiting block 13 welded on both sides of the two slides 9, and the limiting block 13 slides in the limiting groove 11. Both sides of the mounting frame 7 are provided with a moving component that drives the slides 9 to reset, and the top of the mounting frame 7 is provided with a pulling component that drives the slides 9 to move towards the blank.

[0025] As the mounting bracket 7 moves upward, it will drive the slide 9 and the limiting block 13 to move upward, so that the limiting block 13 slides in the limiting groove 11 until the limiting block 13 moves to the top of the limiting groove 11. Then, the pulling component will drive the limiting block 13 to move horizontally in the limiting groove 11. The hydraulic cylinder 8 will retract and cause the limiting block 13 to be locked into the other end of the limiting groove 11, thereby locking the position of the slide 9, thus completing the clamping of the blank by the clamping plate 3 and improving the clamping stability of the clamping plate 3.

[0026] When the blank needs to be flipped, the hydraulic cylinder 8 is activated to extend, thereby causing the mounting bracket 7 to move the slide 9 upward. The slide 9 is then reset via the moving component. At this time, the hydraulic cylinder 8 can be retracted. The retraction of the hydraulic cylinder 8 will reset the slide 9 and the clamping plate 3, thereby enabling the blank to be flipped, reducing the weight of the worker's flipping and reducing the worker's workload.

[0027] The moving component includes electromagnets 14 fixed to the inner walls of both sides of the mounting frame 7. The two slides 9 have mounting grooves 16 on one side. Iron blocks 17 are fixed in the mounting grooves 16 by bolts. When the electromagnets 14 are energized, they generate magnetism, thereby attracting the iron blocks 17 and driving the slides 9 to move and complete the reset of the slides 9. When the clamping plate 3 enters the clearance groove 2, the electromagnets 14 are de-energized, and the clamping plate 3 is restricted by the clearance groove 2 and cannot move horizontally.

[0028] The pulling component includes two fixed plates 12 welded to the top of the mounting bracket 7. A tension spring 15 is fixed between the fixed plate 12 and the slide 9 by bolts. When the limiting block 13 moves to the top of the limiting groove 11, the tension spring 15, which is stretched and has tension force, resets and pulls the slide 9 to move.

[0029] Both the tension spring 15 and the electromagnet 14 are flexible connections, which can avoid deformation caused by vibration.

[0030] The blocking assembly includes a blocking frame 6 fixed to the top of the casting table 1. A cover plate 4 is rotatably connected between the inner walls of the two sides of the blocking frame 6. An arc-shaped elastic plate 5 is fixed to the top of the cover plate 4 by bolts, and the other end of the arc-shaped elastic plate 5 is fixed to the casting table 1. The arc-shaped elastic plate 5 is made of elastic steel. The top corner of the two slides 9 is a bevel, which is used to squeeze the cover plate 4 to rotate. When not in use, the cover plate 4 will enter the blocking frame 6, thereby blocking the avoidance groove 2, so that the waste chips during forging can enter the interior of the casting table 1 through the avoidance groove 2, thus improving the protective effect of the device.

[0031] Among them, the casting platform 1, the mounting frame 7 and the slide 9 are all made of steel.

[0032] It should be noted that the casting platform 1, the arc-shaped elastic plate 5, the hydraulic cylinder 8, and the electromagnet 14 in this utility model are all electrical components known to those skilled in the art. Their structures and principles can be learned by those skilled in the art through technical manuals or conventional experimental methods, and will not be elaborated on here.

[0033] The hydraulic cylinder 8 is an actuator in the hydraulic system. It works in conjunction with the hydraulic system to achieve the telescopic function. Furthermore, by working with a magnetic switch, proximity switch, or photoelectric switch, it enables precise control of the telescopic displacement of the piston rod of the hydraulic cylinder 8. Those skilled in the art can configure it according to actual needs.

[0034] The working principle of this utility model is as follows: The tube seat blank is placed on the casting table 1, and the hydraulic cylinder 8 is started. The hydraulic cylinder 8 extends and drives the mounting bracket 7 to move upward, thereby driving the slide 9 and the clamping plate 3 to move upward, so that the limiting block 13 slides in the limiting groove 11. When the limiting block 13 moves to the top of the limiting groove 11, the tension spring 15, which is stretched and has tension force, returns to its original position and pulls the slide 9 to move, so that the two clamping plates 3 come into contact, thereby closing the two clamping plates 3 to form a ring, which clamps and limits the tube seat blank. The blank is opened by using a hole-opening mold in conjunction with a forging machine, so that the blank becomes tubular. Because the outer periphery of the blank is blocked, the blank cannot expand and thus cannot be deformed. At the same time, the clamping plate 3 clamps the blank by mechanical control, which can effectively reduce the workload of workers, thereby relieving worker fatigue and improving the processing efficiency of the tube seat. Finally, the following points should be noted: In the description of this application, it should be noted that, unless otherwise specified and limited, the terms "installation", "connection" and "linkage" should be interpreted broadly, and can be mechanical or electrical connection, or internal connection between two components, or direct connection. "Up", "down", "left", "right", etc. are only used to indicate relative positional relationship. When the absolute position of the described object changes, the relative positional relationship may change.

[0035] The electronic components and modules used in this utility model can all be parts that are commonly used in the market and can achieve the specific functions in this case. The specific models and sizes can be selected and adjusted according to actual needs.

[0036] The accompanying drawings of the embodiments disclosed in this utility model only involve the structures involved in the embodiments disclosed in this utility model. Other structures can refer to the general design. In the absence of conflict, the same embodiment and different embodiments of this utility model can be combined with each other.

Claims

1. A fixture for machining CRDM pipe seats with anti-deformation features, comprising a casting table (1), characterized in that: The casting platform (1) has two clearance slots (2) on its top. The casting platform (1) has a moving slot (10) connected to the clearance slots (2) inside. A mounting frame (7) is slidably connected in the moving slot (10). Two slides (9) that can slide in the clearance slots (2) are slidably connected to the top of the mounting frame (7). A clamp (3) is fixedly connected to one side of the slide (9), and the two clamps (3) are closed into a ring shape. The inner walls on both sides of the moving slot (10) are provided with guide components to guide the movement direction of the slides (9). The inner wall at the bottom of the casting platform (1) is provided with a hydraulic cylinder (8) that drives the mounting frame (7) to move up and down. The top of the casting platform (1) is provided with a blocking component to block the clearance slots (2).

2. The anti-deformation CRDM pipe seat machining fixture according to claim 1, characterized in that: The guide assembly includes limiting grooves (11) formed on the inner walls of both sides of the moving groove (10). Limiting blocks (13) are fixedly connected to both sides of the two slides (9), and the limiting blocks (13) slide in the limiting grooves (11). Both sides of the mounting frame (7) are provided with moving components that drive the slides (9) to reset. The top of the mounting frame (7) is provided with a pulling component that drives the slides (9) to move toward the blank.

3. The anti-deformation CRDM pipe seat machining fixture according to claim 2, characterized in that: The moving component includes an electromagnet (14) fixed to the inner walls of both sides of the mounting bracket (7), and a mounting groove (16) is provided on one side of the two slides (9), with an iron block (17) fixedly connected in the mounting groove (16).

4. The anti-deformation CRDM pipe seat machining fixture according to claim 2, characterized in that: The pulling assembly includes two fixed plates (12) fixedly connected to the top of the mounting bracket (7), and a tension spring (15) is fixedly connected between the fixed plates (12) and the slide (9).

5. A deformation-resistant CRDM pipe seat machining fixture according to claim 1, characterized in that: The blocking assembly includes a blocking frame (6) fixed to the top of the casting table (1), and a cover plate (4) is rotatably connected between the inner walls of the two sides of the blocking frame (6).

6. A deformation-resistant CRDM pipe seat machining fixture according to claim 5, characterized in that: The top of the cover plate (4) is fixedly connected to an arc-shaped elastic plate (5), and the other end of the arc-shaped elastic plate (5) is fixed to the casting table (1).

7. A deformation-resistant CRDM pipe seat machining fixture according to claim 6, characterized in that: The top corner of both carriages (9) is a bevel, used to press the cover plate (4) to rotate.

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