Four hook claw assembly oxyacetylene surfacing auxiliary device

Abstract

The utility model discloses a kind of oxyacetylene surfacing auxiliary devices of four-hook claw assembly, including the adjusting device for being connected with four-hook claw assembly, adjusting device includes horizontal adjusting mechanism, rotary adjusting mechanism and turnover adjusting mechanism, horizontal adjusting mechanism connects four-hook claw assembly, turnover adjusting mechanism is connected horizontal adjusting mechanism by rotary adjusting mechanism;The horizontal adjusting mechanism includes first connecting column and the clamping piece being set on first connecting column, and the four-hook claw assembly is fixed on the first connecting column by the clamping piece.The utility model can be adjusted to each surfacing hole position of four-hook claw assembly by adjusting mechanism, and the speed of adjustment is fast, easy and simple to operate, and the efficiency of oxyacetylene surfacing can be improved.

Description

Technical Field

[0001] This utility model relates to the field of oxyacetylene surfacing technology, and in particular to an auxiliary device for oxyacetylene surfacing of a four-linked hook assembly. Background Technology

[0002] The control rod drive mechanism is one of the key pieces of equipment in the nuclear island of a nuclear power plant. The claw, as a core moving part of the control rod drive mechanism, is crucial for the overall stable operation of the mechanism due to its reliability and stability. Currently, the control rod drive mechanism claws widely used in nuclear power plants are single-tooth claws primarily manufactured using cobalt-based alloy surfacing. As a core moving part of the control rod drive mechanism, the claw requires complex surfacing of dissimilar materials within a very small pin hole, with high precision requirements for dimensional and shape errors. To accelerate surfacing efficiency, four-claw assemblies are often used to surface multiple claw parts simultaneously. Currently, the claw structure often uses a four-claw assembly composed of four claws integrated into one unit. The claw teeth form a circular hole, simplifying the surfacing process and facilitating the overall machining of the assembly after surfacing. However, during the dissimilar alloy surfacing of the claws, ensuring quality is crucial. Currently, the surfacing efficiency of four-claw assemblies is relatively low and heavily reliant on operator skill while meeting design requirements.

[0003] Based on the above-mentioned welding hook technology, there is currently no suitable auxiliary welding device to improve welding efficiency and reduce operational difficulty. Furthermore, during the welding process, the small four-hook assembly is prone to heat buildup due to heat accumulation, which affects the welding effect and product performance.

[0004] In summary, the main shortcomings of the existing oxyacetylene welding method for preparing claw parts are: (1) the efficiency of welding claws is low and it cannot simultaneously meet the requirements of speed and quality; (2) the quality of claw welding is heavily dependent on the operator's skill level. Utility Model Content

[0005] The purpose of this invention is to overcome the above-mentioned technical deficiencies, solve the technical problems of slow adjustment speed and complicated operation of hook and claw welding in the prior art, and provide a four-link hook and claw assembly oxy-acetylene welding auxiliary device that can simultaneously meet the requirements of speed and quality and is simple and convenient to operate.

[0006] This utility model provides an auxiliary device for oxyacetylene welding of a four-claw assembly, including an adjustment device for connecting to the four-claw assembly. The adjustment device includes a horizontal adjustment mechanism, a rotary adjustment mechanism, and a flip adjustment mechanism. The horizontal adjustment mechanism is connected to the four-claw assembly, and the flip adjustment mechanism is connected to the horizontal adjustment mechanism through the rotary adjustment mechanism. The horizontal adjustment mechanism includes a first connecting post and a locking piece disposed on the first connecting post. The four-claw assembly is fixed to the first connecting post by the locking piece.

[0007] Furthermore, the locking piece includes a fixed locking piece and a movable locking piece; the fixed locking piece includes a first fixed locking piece disposed at the first end of the first connecting post and a second fixed locking piece fixed on the first connecting post; the second fixed locking piece and the movable locking piece respectively contact the four-link claw assembly from both sides, so that the four-link claw assembly is kept fixed on the horizontal adjustment mechanism.

[0008] Furthermore, the second end of the first connecting post is provided with a first threaded post and a first nut, and the movable locking piece is fixed to the first threaded post by the first nut.

[0009] Furthermore, the rotary adjustment mechanism includes a rotary adjustment ring, a horizontal adjustment mechanism connecting channel, and a first screw hole. The hollow cavity inside the rotary adjustment ring forms the horizontal adjustment mechanism connecting channel, and the first screw hole is formed through the wall of the rotary adjustment ring. The first connecting post passes through the horizontal adjustment mechanism connecting channel.

[0010] Furthermore, the rotary adjustment mechanism is connected to an auxiliary adjustment bracket; the auxiliary adjustment bracket includes a support arm and a second connecting column, the support arm includes a first support block and a second support block, one end of the first support block is connected to the horizontal adjustment mechanism connection channel, the other end is connected to the second support block, and the second support block is connected to the second connecting column.

[0011] Furthermore, a second bolt is provided in the first screw hole, and the horizontal adjustment mechanism and the rotary adjustment mechanism are fixed together by the second bolt and the first connecting column.

[0012] Furthermore, the rotating adjustment ring is disposed between the first fixed locking piece and the second fixed locking piece. When the horizontal adjustment mechanism moves, the rotating adjustment ring contacts the first fixed locking piece and the second fixed locking piece respectively through the second bolt.

[0013] Furthermore, the flipping adjustment device includes a third support block, a threaded hole, and a fourth support block. The threaded hole is formed through the wall of the third support block. The third support block and the fourth support block are vertically connected. The interior of the third support block is hollow, forming an internal channel. The third support block is sleeved with the second connecting post through the internal channel of the third support block.

[0014] Furthermore, the auxiliary adjustment bracket is connected to the four-link hook claw flipping adjustment mechanism, and the auxiliary adjustment bracket fixes the second connecting column in the internal channel of the third support block by the second bolt.

[0015] Furthermore, the first connecting column has two centrally symmetrical upper and lower planes, and weight-reducing holes are provided on the first connecting column.

[0016] This invention enables the horizontal, rotational, and flipping adjustment of each welding hole position of the four-link hook claw assembly through an adjustment mechanism. The adjustment speed is fast, the operation is simple and convenient, and it can improve the efficiency of oxyacetylene welding. Attached Figure Description

[0017] Figure 1 A schematic diagram of the structure of an oxyacetylene overlay welding auxiliary device for a four-linked hook assembly provided in a preferred embodiment of this utility model;

[0018] Figure 2 for Figure 1 Schematic diagram of the four-link hook assembly;

[0019] Figure 3 for Figure 1 Schematic diagram of the middle level adjustment mechanism;

[0020] Figure 4 for Figure 1 Schematic diagram of the rotating adjustment mechanism;

[0021] Figure 5 for Figure 1 Schematic diagram of the tilting adjustment mechanism;

[0022] Figure 6 for Figure 1 Another structural diagram of the inverted adjustment mechanism. Detailed Implementation

[0023] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0024] In the description of this application, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," and "counterclockwise," etc., indicating orientation or positional relationships based on the orientation or positional relationships shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication between two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0026] Please see Figure 1 A preferred embodiment of this utility model provides an auxiliary device for oxyacetylene welding of a four-claw assembly, including an adjustment device 200 for connecting to the four-claw assembly 100. The adjustment device 200 is fixed to the fixing post 600 by a flip adjustment mechanism 40.

[0027] Please see Figure 2 , Figure 2The welding holes of the four-claw assembly 100 are shown, totaling eight holes. The description focuses on the first welding hole 102 and the second welding hole 103 as examples. The first welding hole 102 and the second welding hole 103 are similar to a gourd shape, extending through one of the claws of the four-claw assembly 100. On the same side of the claw, the two welding holes are reversed, with varying diameters. During conventional welding, both ends of the first welding hole 102 and the second welding hole 103 require oxyacetylene welding. Furthermore, to maintain the welding position changes of the four-claw assembly during welding, such as horizontal movement, rotation, and flipping of the four claws, it is necessary to keep the welding holes coaxial with the welding auxiliary device to ensure welding accuracy. Therefore, using the fixed column 600 as a reference, it is ensured that each welding hole remains coaxial with the fixed column 600 after the mechanical structure moves.

[0028] Please refer to it again. Figure 1 The adjustment device 200 includes a horizontal adjustment mechanism 20, a rotary adjustment mechanism 30, and a tilting adjustment mechanism 40. The horizontal adjustment mechanism 20 is connected to the four-claw assembly 100, and the tilting adjustment mechanism 40 is connected to the horizontal adjustment mechanism 20 via the rotary adjustment mechanism 30. Please also refer to... Figure 3 The horizontal adjustment mechanism 20 includes a first connecting post 201 and a locking piece (not labeled) disposed on the first connecting post 201. The four-pronged hook assembly 100 is fixed to the first connecting post 201 by the locking piece.

[0029] Please also refer to Figure 1 and Figure 3 In this embodiment, the horizontal adjustment mechanism 20 includes a first connecting post 201, a first fixed locking piece 202 and a second fixed locking piece 203 disposed on the first connecting post 201, and a first threaded post 205 and a movable locking piece 206 disposed at the end of the first connecting post 201. The locking pieces include a fixed locking piece 210 and a movable locking piece 206. The fixed locking piece 210 includes a first fixed locking piece 202 disposed at the first end of the first connecting post 201 and a second fixed locking piece 203 fixed to the first connecting post 201. The second fixed locking piece 203 and the movable locking piece 206 contact the four-link claw assembly 100 from both sides, respectively, so that the four-link claw assembly 100 is fixed on the horizontal adjustment mechanism 20. The first fixed locking piece 202 and the second fixed locking piece 203 are used to restrict the horizontal adjustment mechanism 20 in the horizontal direction. The second end of the first connecting post 201 is provided with a first threaded post 205 and a first nut 207. The movable locking piece 206 is fixed to the first threaded post 205 by the first nut 207. The second fixed locking piece 203 is fixedly connected to the first connecting post 201 and is fixed in contact with the four-pronged hook assembly 100. Similarly, the movable locking piece 206 is sleeved on the first connecting post 201 and is fixed in contact with the four-pronged hook assembly 100.

[0030] The four-pronged hook assembly 100 is sleeved onto the outer peripheral wall of the first connecting post 201. The four-pronged hook assembly 100 is fixed to the first connecting post 201 by a movable locking piece 206, a second fixed locking piece 203, and a first threaded post 205, thereby maintaining its fixation on the horizontal adjustment mechanism 20. (See also...) Figure 3 The four-pronged hook assembly 100 is located on the second side of the second fixing plate 203. To fix the four-pronged hook assembly 100, a hollow channel 101 is first formed inside the assembly. Then, the first connecting post 201 is inserted into the channel 101, causing the movable fixing plate 206 to fix the four-pronged hook assembly 100. Finally, the corresponding first nut 207 is tightened at the first threaded post 205, fixing the four-pronged hook assembly 100 to the end of the first threaded post 205. The first nut 207 is located at one end of the first connecting post 201, and it achieves the purpose of fixing the four-pronged hook assembly 100 by fixing the movable fixing plate 206.

[0031] Please also refer to Figure 1 , Figure 3 and Figure 4 In this embodiment, the rotation adjustment mechanism 30 includes a rotation adjustment ring 301, a horizontal adjustment mechanism connecting channel 302, and a first screw hole 303. The horizontal adjustment mechanism connecting channel 302 is formed by a hollow cavity inside the rotation adjustment ring 301, and the first screw hole 303 is formed through the wall of the rotation adjustment ring 301. A second bolt 304 is provided in the first screw hole 303, and the horizontal adjustment mechanism 20 and the rotation adjustment mechanism 30 are fixed to the first connecting post 201 by the second bolt 304. The rotation adjustment ring 301 is disposed between the first fixing plate 202 and the second fixing plate 203. When the horizontal adjustment mechanism 20 moves, the rotation adjustment ring 301 contacts the first fixing plate 202 and the second fixing plate 203 respectively through the second bolt 304. The first connecting post 201 passes through the horizontal adjustment mechanism connecting channel 302, which is used to rotate the entire horizontal adjustment mechanism 20 and the four-claw assembly 100 connected to it.

[0032] When the adjusting device 200 is in operation, the first connecting column 201 is fixed by passing the second bolt 304 through the first screw hole 303 at the rotary adjusting mechanism 30, thereby fixing the horizontal adjusting mechanism 20. By adjusting the second bolt 304, the horizontal adjusting mechanism 20 can be rotated to control the rotation of the four-pronged hook assembly 100. The first connecting column 201 has two centrally symmetrical upper and lower planes. The four-pronged hook assembly 100 is adjusted and fixed on the two upper and lower planes by the second bolt 304 to achieve the rotation of the four-pronged hook assembly 100.

[0033] The first connecting column 201 is also provided with a weight reduction hole 204, which can penetrate through the upper and lower planes.

[0034] The rotary adjustment mechanism 30 is connected to an auxiliary adjustment bracket 500. The auxiliary adjustment bracket 500 includes a support arm 510 and a second connecting column 503. The support arm 510 includes a first support block 501 and a second support block 502. One end of the first support block 501 is connected to the horizontal adjustment mechanism connection channel 302, and the other end can be vertically connected to the second support block 502. The second support block 502 is connected to the second connecting column 503. One end of the second connecting column 503 is vertically connected to one side of the second support block 502 and can be horizontally parallel to the first support block 501.

[0035] Please see Figure 5 and Figure 6 In this embodiment, the flipping adjustment mechanism 40 includes a third support block 401, a threaded hole 402, and a fourth support block 403. The threaded hole 402 is formed through the wall of the third support block 401. The fourth support block 403 is rigidly connected to the fixing post 600, and the rigid connection can be, for example, a welded connection. The fixing post 600 is hollow inside and is connected to the fixing pile to fix the oxyacetylene welding auxiliary device of the four-link hook claw assembly. The third support block 401 is hollow inside, forming an internal channel 405. The third support block 401 is sleeved with one end of the second connecting post 503 through the internal channel 405, and then fixed by a third bolt in the threaded hole 402. The third support block 401 and the fourth support block 403 are vertically connected, and the fourth support block 403 is also vertically connected to the fixing post 600.

[0036] The flip-adjustment mechanism 40 is connected to the auxiliary adjustment bracket 500, which is connected to the auxiliary adjustment bracket 500 via the second bolt 504 (please refer to the relevant documentation). Figure 1 The second connecting post 503 is fixed in the internal channel 405 of the third support block.

[0037] The components of the horizontal adjustment mechanism 20, the rotary adjustment mechanism 30 and the flip adjustment mechanism 40 are rigidly connected. The adjustment device 200 has a limit device during adjustment. The limit device may include, for example, a second fixing plate 203.

[0038] See Figure 1 and Figure 2 The four-pronged hook assembly 100 moves horizontally by adjusting the second bolt 304 located at the rotary adjustment mechanism 30. When the horizontal adjustment mechanism 20 is running, the second bolt 304 needs to be secured with a nut to prevent loosening, and the movement distance at both ends is determined by the first fixing plate 202 and the second fixing plate 203. (See reference...) Figure 3 When the first fixed locking piece 202 contacts the rotation adjustment mechanism 30, the corresponding weld overlay hole position is... Figure 2 The first weld overlay hole position 102. When the second fixing clip 203 contacts the rotation adjustment mechanism 30, the corresponding weld overlay hole position is... Figure 2The second weld overlay hole 103 is located in the middle, and the locking positions at both ends further ensure the coaxiality of the weld overlay hole and the fixed post 600. (See reference...) Figure 4 The flipping adjustment mechanism 40, through the adjustment of the second bolt 504, rotates the second connecting column 503 to drive the support arm 510 to flip, thereby achieving the purpose of flipping the four-link hook assembly 100. The second connecting column 503 and the fixed column 600 are concentric and coaxial. Rotating the second connecting column 503 drives the support arm 510 to flip. The fixed column 600 ensures that the weld overlay hole position and the tooling fixing bracket are concentric and coaxial, so that the tooling fixing bracket is concentric and coaxial with the first weld overlay hole position 102 and the second weld overlay hole position 103, respectively. The tooling fixing bracket includes the aforementioned rotating adjustment mechanism 30, the aforementioned first support block 501, and the aforementioned second support block 502. See also... Figure 2 and Figure 5 It is understandable that during the welding of the four-pronged hook assembly 100, the fixed column 600 serves as support, and the coaxiality of the entire welding auxiliary device is determined, with the front of the first welding hole 102 at this time as the initial welding direction. When the flipping adjustment mechanism 40 flips, it simultaneously drives the four-pronged hook assembly 100 to flip, at which point the welding hole position changes to the back of the first welding hole 102. Please refer to... Figure 3 and Figure 4 When the rotary adjustment mechanism 30 rotates, the welding holes of the four-pronged claw assembly 100 remain coaxial. The rotary adjustment mechanism 30 drives the four-pronged claw assembly 100 to rotate, thereby changing the welding holes to other holes. During this process, a series of holes remain coaxial to ensure welding accuracy.

[0039] The four-claw assembly oxyacetylene welding auxiliary device can be made of stainless steel. Stainless steel auxiliary welding devices are also easier to transfer heat during the welding process, thus improving the welding effect.

[0040] The above description is merely a preferred embodiment of this utility model and is not intended to limit this utility model in any form or substance. It should be noted that those skilled in the art can make various improvements and additions without departing from the method of this utility model, and these improvements and additions should also be considered within the protection scope of this utility model. Any modifications, alterations, and equivalent changes made by those skilled in the art without departing from the spirit and scope of this utility model using the disclosed technical content are equivalent embodiments of this utility model. Furthermore, any modifications, alterations, and evolutions made to the above embodiments based on the essential technology of this utility model still fall within the scope of the technical solution of this utility model.

Claims

1. An auxiliary device for oxyacetylene welding of a four-claw assembly, characterized in that: The device includes an adjustment mechanism for connecting to a four-claw assembly. The adjustment mechanism includes a horizontal adjustment mechanism, a rotary adjustment mechanism, and a flip adjustment mechanism. The horizontal adjustment mechanism is connected to the four-claw assembly, and the flip adjustment mechanism is connected to the horizontal adjustment mechanism through the rotary adjustment mechanism. The horizontal adjustment mechanism includes a first connecting post and a locking piece disposed on the first connecting post. The four-claw assembly is fixed to the first connecting post by the locking piece.

2. The oxyacetylene welding auxiliary device for the four-linked hook assembly according to claim 1, characterized in that: The locking piece includes a fixed locking piece and a movable locking piece; the fixed locking piece includes a first fixed locking piece disposed at the first end of the first connecting column and a second fixed locking piece fixed on the first connecting column; the second fixed locking piece and the movable locking piece respectively contact the four-link claw assembly from both sides, so that the four-link claw assembly is kept fixed on the horizontal adjustment mechanism.

3. The oxyacetylene welding auxiliary device for the four-linked hook assembly according to claim 2, characterized in that: The second end of the first connecting post is provided with a first threaded post and a first nut, and the movable locking piece is fixed to the first threaded post by the first nut.

4. The oxyacetylene welding auxiliary device for the four-linked hook assembly according to claim 2, characterized in that: The rotary adjustment mechanism includes a rotary adjustment ring, a horizontal adjustment mechanism connecting channel, and a first screw hole. The hollow cavity inside the rotary adjustment ring forms the horizontal adjustment mechanism connecting channel, and the first screw hole is formed through the wall of the rotary adjustment ring. The first connecting post passes through the horizontal adjustment mechanism connecting channel.

5. The oxyacetylene welding auxiliary device for the four-linked hook assembly according to claim 4, characterized in that: The rotary adjustment mechanism is connected to an auxiliary adjustment bracket; the auxiliary adjustment bracket includes a support arm and a second connecting column. The support arm includes a first support block and a second support block. One end of the first support block is connected to the connecting channel of the horizontal adjustment mechanism, and the other end is connected to the second support block. The second support block is connected to the second connecting column.

6. The oxyacetylene welding auxiliary device for the four-linked hook assembly according to claim 5, characterized in that: A second bolt is provided in the first screw hole, and the horizontal adjustment mechanism and the rotary adjustment mechanism are fixed together by the second bolt and the first connecting column.

7. The oxyacetylene welding auxiliary device for the four-claw assembly according to claim 6, characterized in that: The rotating adjustment ring is disposed between the first fixed locking piece and the second fixed locking piece. When the horizontal adjustment mechanism moves, the rotating adjustment ring contacts the first fixed locking piece and the second fixed locking piece respectively through the second bolt.

8. The oxyacetylene welding auxiliary device for the four-linked hook assembly according to claim 6, characterized in that: The flipping adjustment mechanism includes a third support block, a threaded hole, and a fourth support block. The threaded hole is formed through the wall of the third support block. The third support block and the fourth support block are vertically connected. The interior of the third support block is hollow, forming an internal channel. The third support block is sleeved with the second connecting post through the internal channel of the third support block.

9. The oxyacetylene welding auxiliary device for the four-linked hook assembly according to claim 8, characterized in that: The auxiliary adjustment bracket is connected to the flip adjustment mechanism, and the auxiliary adjustment bracket fixes the second connecting column in the internal channel of the third support block by the second bolt.

10. The oxyacetylene welding auxiliary device for the four-linked hook assembly according to claim 2, characterized in that: The first connecting column has two centrally symmetrical upper and lower planes, and weight-reducing holes are opened on the first connecting column.

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