Welding positioning device for niobium material workpiece

Abstract

The utility model discloses a welding positioning device for a niobium material workpiece. The welding positioning device comprises a clamp assembly, a rack and a bottom plate. The base plate is fixedly installed on the machine frame, the base plate is used for placing a niobium material workpiece, and the clamp assembly is installed on the machine frame, can move relative to the base plate and is used for fixing the niobium material workpiece; the bottom plate is provided with a water cooling channel and a plurality of injection orifices used for outputting inert gas, the arrangement positions of the injection orifices correspond to the welding position of the niobium material workpiece, and the water cooling channel is arranged close to the plurality of injection orifices. According to the technical scheme, the niobium material workpiece welding cost is reduced, and the welding efficiency is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to welding fixture technical field especially relates to a niobium material workpiece's welding positioning device. BACKGROUND

[0002] In the process of welding niobium or niobium alloy material workpiece, the oxidation problem of niobium material workpiece has been a technical difficulty. Because niobium material is very sensitive to high temperature, oxidation denaturation easily occurs in the welding process, especially in high temperature environment, the stability of niobium material workpiece is particularly important. Therefore, in order to guarantee the welding quality and the service life of positioning device, effective measures must be taken to prevent niobium material workpiece from being oxidized in high temperature welding environment. The common method in the prior art includes adopting the way of bottom inert gas blowing to isolate oxygen, thereby preventing the occurrence of oxidation phenomenon in the welding process. However, the process of blowing inert gas in the prior art needs a long time, the economic cost is high, and at the same time, the welding efficiency is low. SUMMARY

[0003] The utility model aims at providing a niobium material workpiece's welding positioning device, which aims at reducing the niobium material workpiece welding cost and improving the welding efficiency.

[0004] To achieve this purpose, the utility model adopts the following technical scheme:

[0005] A niobium material workpiece's welding positioning device, comprising:

[0006] Clamp assembly, rack and bottom plate;

[0007] The bottom plate is fixedly installed on the rack, and the bottom plate is used for placing niobium material workpiece, and the clamp assembly is installed on the rack and can move relative to the bottom plate, and is used for fixing the niobium material workpiece;

[0008] The bottom plate is provided with a water cooling channel and a plurality of jet ports for outputting inert gas, the setting position of the jet port corresponds to the welding position of the niobium material workpiece, and the water cooling channel is arranged close to a plurality of jet ports.

[0009] Optionally, each jet port is connected with a jet dry way;

[0010] The water cooling channel is arranged in a curve around each jet port.

[0011] Optionally, the clamp assembly comprises a driving motor, a guide rod, a first lead screw, a first clamping piece and a second clamping piece;

[0012] The drive motor is fixed to the frame, and the first lead screw is a bidirectional lead screw; the first clamping member and the second clamping member are respectively disposed on both sides of the base plate and can slide and guide relative to the guide rod. When the drive motor drives the first lead screw to rotate, the first clamping member and the second clamping member can simultaneously move closer to or further away from the base plate.

[0013] Optionally, the first clamping member is disposed away from the drive motor, and the side of the first clamping member closest to the base plate is stepped.

[0014] Optionally, the second clamping member is disposed close to the drive motor, and the second clamping member includes a fixed plate, an elastic plate, and a plurality of springs;

[0015] The fixed plate is threadedly engaged with the first lead screw, and the fixed plate is slidably engaged with the guide rod; the elastic plate is disposed close to the base plate, and the elastic plate is connected to the fixed plate through a guide post; a plurality of springs are installed between the fixed plate and the elastic plate.

[0016] Optionally, a copper plate is also provided on the side of the elastic plate near the base plate, the copper plate being used to contact the niobium material workpiece.

[0017] Compared with the prior art, the present invention has the following beneficial effects:

[0018] This utility model's technical solution effectively reduces the welding cost and improves welding efficiency for niobium workpieces. Specifically, the water-cooling channel reduces the workpiece's cooling time: During niobium welding, the welding process generates high temperatures. Traditionally, the workpiece needs to cool naturally to a safe temperature before proceeding to the next step, a time-consuming process that reduces welding efficiency. By setting a water-cooling channel in the base plate, the cooling rate of the workpiece can be significantly accelerated. Rapid heat dissipation not only shortens the workpiece's cooling time but also reduces waiting time during the welding process, thereby improving overall production efficiency. Secondly, it reduces the consumption of inert gas: Niobium materials have high requirements for the welding environment and must be welded and cooled under inert gas protection to prevent oxidation. If the cooling rate is slow, inert gas needs to be continuously blown for a long time to maintain the protective environment, resulting in high gas consumption and increased welding costs. By accelerating the cooling process through the water-cooling channel, the workpiece can reach a safe temperature without a protective atmosphere more quickly, thus significantly reducing the inert gas usage time and lowering the gas consumption cost required for welding. Furthermore, the precise arrangement of the injection nozzles improves protection efficiency: The inert gas injection nozzles are precisely arranged to correspond to the welding position of the workpiece, allowing the inert gas to be concentrated and injected into the welding area. Compared to traditional comprehensive protection methods, this design reduces the waste of inert gas and further lowers gas costs.

[0019] At the same time, precise protection improves the stability of the environment during the welding process, reduces the rework rate caused by welding defects, improves welding quality, and indirectly improves welding efficiency.

[0020] In summary, this utility model's technical solution shortens the cooling time through a water-cooling channel, reduces the amount of inert gas used in welding, and improves protection efficiency through a precision spray design, successfully reducing welding costs while simultaneously increasing welding efficiency. This design, combining heat dissipation and gas protection, achieves a balance between economy and high efficiency, specifically addressing the high requirements of welding niobium material workpieces. Attached Figure Description

[0021] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0022] The structures, proportions, sizes, etc., shown in the accompanying drawings of this specification are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this utility model. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size, without affecting the effects and purposes that this utility model can produce, should still fall within the scope of the technical content disclosed in this utility model.

[0023] Fig. 1 This is a schematic diagram of an embodiment of the welding positioning device for niobium material workpieces according to the present invention;

[0024] Fig. 2 This is a cross-sectional view of an embodiment of the welding positioning device for niobium material workpieces according to the present invention;

[0025] Fig. 3 This is a cross-sectional view of an embodiment of the welding positioning device for niobium material workpieces according to the present invention;

[0026] Illustration: 100. Welding positioning device for niobium material workpieces.

[0027] 111. Drive motor; 112. Guide rod; 113. First lead screw; 114. First clamping component; 115. Second clamping component; 1151. Fixing plate; 1152. Elastic plate; 1153. Spring; 1154. Guide post; 1155. Copper plate;

[0028] 120. Frame; 130. Base plate; 131. Water cooling aisle; 132. Injection nozzle; 133. Injection trunk line. Detailed Implementation

[0029] To make the technical objectives, features, and advantages of this utility model more apparent and understandable, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the embodiments described below are only some embodiments of this utility model, and not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this utility model.

[0030] In the description of this utility model, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model 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 utility model. It should be noted that when a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0031] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0032] This utility model embodiment provides a welding positioning device 100 for niobium material workpieces.

[0033] Please see Figs. 1 to 3 The welding positioning device 100 for niobium material workpieces includes a clamping assembly, a frame 120, and a base plate 130. The base plate 130 is fixedly mounted on the frame 120 and is used to place the niobium material workpiece. The clamping assembly is mounted on the frame 120 and is movable relative to the base plate 130 to fix the niobium material workpiece. The base plate 130 is provided with a water-cooling channel 131 and multiple injection ports 132 for outputting inert gas. The positions of the injection ports 132 correspond to the welding positions of the niobium material workpiece, and the water-cooling channel 131 is located close to the multiple injection ports 132.

[0034] Each spray nozzle 132 is connected to a spray main 133, and a water-cooling channel 131 is arranged in a curved shape around each spray nozzle 132. The clamping assembly includes a drive motor 111, a guide rod 112, a first lead screw 113, a first clamping member 114, and a second clamping member 115. The drive motor 111 is fixed to the frame 120, and the first lead screw 113 is a bidirectional lead screw. The first clamping member 114 and the second clamping member 115 are respectively located on both sides of the base plate 130 and can slide and guide relative to the guide rod 112; when the drive motor 111 drives the first lead screw 113 to rotate, the first clamping member 114 and the second clamping member 115 can simultaneously move closer to or further away from the base plate 130.

[0035] The first clamping member 114 is positioned away from the drive motor 111, and the side of the first clamping member 114 near the base plate 130 is stepped to accommodate niobium material workpieces of different thicknesses. The second clamping member 115 is positioned near the drive motor 111, and includes a fixed plate 1151, an elastic plate 1152, and multiple springs 1153. The fixed plate 1151 is threadedly engaged with the first lead screw 113 and slidably engaged with the guide rod 112; the elastic plate 1152 is positioned near the base plate 130 and connected to the fixed plate 1151 via a guide post 1154; multiple springs 1153 are installed between the fixed plate 1151 and the elastic plate 1152.

[0036] A copper plate 1155 is also provided on the side of the elastic plate 1152 near the base plate 130. The copper plate 1155 is used to contact the niobium material workpiece to play a role in heat dissipation and wear resistance.

[0037] This utility model effectively reduces the welding cost and improves the welding efficiency of niobium workpieces. Specifically, the water-cooling channel 131 reduces the cooling time of the workpiece. During niobium welding, the welding process generates high temperatures. Traditionally, the workpiece needs to cool naturally to a safe temperature before proceeding to the next step, a time-consuming process that reduces welding efficiency. By setting the water-cooling channel 131 in the base plate 130, the cooling speed of the workpiece can be significantly accelerated. Rapid heat dissipation not only shortens the cooling time of the workpiece but also reduces the waiting time during the welding process, thereby improving overall production efficiency. Secondly, it reduces the consumption of inert gas. Niobium materials have high requirements for the welding environment and must be welded and cooled under inert gas protection to prevent oxidation. If the cooling rate is slow, inert gas needs to be continuously blown for a long time to maintain the protective environment, resulting in high gas consumption and increased welding costs. By accelerating the cooling process through the water-cooling channel 131, the workpiece can reach a safe temperature without a protective atmosphere more quickly, thereby significantly reducing the usage time of inert gas and lowering the gas consumption cost required for welding. Furthermore, the precise arrangement of the injection nozzles 132 improves protection efficiency: the inert gas injection nozzles 132 are precisely positioned to correspond to the welding position of the workpiece, allowing the inert gas to be concentrated and injected into the welding area. Compared to traditional full protection methods, this design reduces the waste of inert gas and further lowers gas costs.

[0038] At the same time, precise protection improves the stability of the environment during the welding process, reduces the rework rate caused by welding defects, improves welding quality, and indirectly improves welding efficiency.

[0039] In summary, this utility model's technical solution shortens the cooling time through the water-cooling channel 131, reduces the amount of inert gas used in welding, and improves protection efficiency through a precision spray design, successfully reducing welding costs while simultaneously increasing welding efficiency. This design, combining heat dissipation and gas protection, achieves a balance between economy and high efficiency, specifically addressing the high requirements of welding niobium material workpieces.

[0040] Understandably, the base plate 130 is fixedly mounted to the frame 120. The base plate 130 is used to place the niobium material workpiece, and the clamping assembly is mounted to the frame 120 and can move relative to the base plate 130 to fix the niobium material workpiece. The advantage of this design is that it provides a stable working platform and can accurately position and fix the niobium material workpiece, ensuring the accuracy and stability of the welding process.

[0041] Understandably, the base plate 130 is equipped with a water-cooling channel 131 and multiple nozzles 132 for outputting inert gas. The nozzles 132 are positioned corresponding to the welding positions of the niobium material workpiece, and the water-cooling channel 131 is located close to the multiple nozzles 132. The advantage of this design is that the water-cooling channel 131 can effectively dissipate heat and prevent the workpiece from overheating and deforming, while the inert gas nozzles 132 can prevent oxidation during the welding process, thereby improving the welding quality.

[0042] Understandably, each injection port 132 is connected to a injection trunk line 133, and the water cooling channel 131 is arranged in a curved shape around each injection port 132. The advantage is that the injection trunk line 133 can evenly distribute the inert gas, improving the protective effect, and the curved water cooling channel 131 design can dissipate heat more efficiently, further protecting the workpiece.

[0043] Understandably, the fixture assembly includes: a drive motor 111, a guide rod 112, a first lead screw 113, a first clamping member 114, and a second clamping member 115. The drive motor 111 is fixed to the frame 120, and the first lead screw 113 is a bidirectional lead screw. The first clamping member 114 and the second clamping member 115 are respectively located on both sides of the base plate 130 and can slide relative to the guide rod 112 for guidance. When the drive motor 111 drives the first lead screw 113 to rotate, the first clamping member 114 and the second clamping member 115 can simultaneously move closer to or further away from the base plate 130. The advantage of this design is that, through the combination of the drive motor 111 and the bidirectional lead screw, synchronous movement of the clamping members can be achieved, ensuring the accuracy and stability of workpiece positioning.

[0044] Understandably, the first clamping member 114 is positioned away from the drive motor 111, and the side of the first clamping member 114 closest to the base plate 130 is stepped. The advantage of this design is that the stepped structure allows the clamping member to adapt to niobium material workpieces of different thicknesses, increasing the applicability and flexibility of the fixture.

[0045] Understandably, the second clamping member 115 is positioned close to the drive motor 111. The second clamping member 115 includes a fixed plate 1151, an elastic plate 1152, and multiple springs 1153. The fixed plate 1151 is threadedly engaged with the first lead screw 113 and slidably engaged with the guide rod 112. The elastic plate 1152 is positioned close to the base plate 130 and is connected to the fixed plate 1151 via a guide post 1154. Multiple springs 1153 are installed between the fixed plate 1151 and the elastic plate 1152. The advantage of this design is that the combination of the elastic plate 1152 and the springs 1153 provides flexible clamping, adapting to minor changes in the workpiece and preventing damage to the workpiece during clamping.

[0046] Understandably, a copper plate 1155 is also provided on the side of the elastic plate 1152 near the base plate 130. The copper plate 1155 is used to contact the niobium material workpiece. The advantage of this design is that the copper plate 1155 has good thermal conductivity and wear resistance, which can effectively dissipate heat during clamping and improve the durability of the fixture and the protection of the workpiece.

[0047] The above-described embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this utility model.

Claims

1. A welding fixture for niobium material workpieces, comprising: The utility model relates to a fixture assembly, a rack and a bottom plate, and belongs to the field of Nb material welding equipment. The bottom plate is fixedly installed on the rack and is used for placing a Nb material workpiece, and the fixture assembly is installed on the rack and can move relative to the bottom plate and is used for fixing the Nb material workpiece. The bottom plate is provided with a water cooling channel and a plurality of jet ports for outputting inert gas, the jet ports are arranged at positions corresponding to welding positions of the Nb material workpiece, and the water cooling channel is arranged close to the plurality of jet ports. Each jet port is connected with a jet dry line.

2. The apparatus of claim 1, wherein, The water cooling channel is arranged in a curved manner around each jet port. The fixture assembly comprises a driving motor, a guide rod, a first screw rod, a first clamping piece and a second clamping piece.

3. The fixture for welding niobium material workpieces according to any one of claims 1 or 2, wherein The driving motor is fixed on the rack, the first screw rod is a bidirectional screw rod, the first clamping piece and the second clamping piece are arranged on two sides of the bottom plate respectively and can slide and guide relative to the guide rod, and when the driving motor drives the first screw rod to rotate, the first clamping piece and the second clamping piece can simultaneously approach or move away from the bottom plate. The first clamping piece is arranged away from the driving motor, and one side of the first clamping piece close to the bottom plate is in a stepped shape.

4. The apparatus of claim 3, wherein: The second clamping piece is arranged close to the driving motor, and the second clamping piece comprises a fixed plate, an elastic plate and a plurality of springs.

5. The apparatus of claim 4, wherein: The fixed plate is threadedly connected with the first screw rod, the fixed plate is slidably connected with the guide rod, the elastic plate is arranged close to the bottom plate, and the elastic plate is connected with the fixed plate through a guide column. The plurality of springs are arranged between the fixed plate and the elastic plate. One side of the elastic plate close to the bottom plate is further provided with a copper plate, and the copper plate is used for contacting the Nb material workpiece.

6. The apparatus of claim 5, wherein: ​

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