Stainless steel laser welding tool capable of preventing weld joint from being oxidized

Abstract

The utility model discloses a stainless steel laser welding tool capable of preventing weld joint oxidation, and relates to the technical field of laser welding. The device comprises a protection plate, the top of the protection plate is fixedly connected with an operation table, the side face of the operation table is fixedly connected with a supporting frame, and the side face of the supporting frame is fixedly connected with a sliding rail. The force for driving the fixed block to move through the electric telescopic rod is matched with components such as the supporting rod, the positioning block and the rotating rod in the fixing device, so that the rotating rod is driven to rotate through the displacement of the fixed block, and then the fixed rod is driven to rotate along the rotating rod through the rotation of the rotating rod; and the fixing rod rotates to drive the pressing plate to rotate downwards, so that the effect of fixing the steel plate is achieved, the position of the steel plate is prevented from deviating in the welding process, it is effectively ensured that the steel plate is always kept at the stable position in the welding process, and welding deviation is reduced.

Description

Technical Field

[0001] This utility model belongs to the field of laser welding technology, and in particular relates to a stainless steel laser welding fixture that prevents weld oxidation. Background Technology

[0002] Currently, the development trend of passenger vehicles is mainly towards high quality and lightweight. In the field of automotive materials, stainless steel is increasingly widely used in automotive exhaust systems, fuel tanks, and chassis due to its advantages such as high strength, relatively light weight, strong corrosion resistance, strong energy absorption capacity after impact, good safety performance, and long service life. Because laser welding has concentrated welding energy, high welding strength, and less heat effect compared to ordinary welding, laser welding is widely used in stainless steel applications in the automotive industry.

[0003] According to the publicly disclosed laser welding fixture for stainless steel heat transfer plates (Publication No.: CN216325919U), it includes an assembly and clamping platform and a plate-pair fixing and protection device. The assembly and clamping platform includes a fixed beam, two sets of parallel lower and upper pressure rollers, with both ends of the upper pressure rollers fixed to the top of a cylinder. The plate-pair fixing and protection device includes an upper pressure plate and a lower pressure plate fixed to the upper and lower pressure rollers, respectively. The upper pressure plate has a weld groove that corresponds to the position of the deflection weld bead on the plate-pair to be welded, and the lower pressure plate has a corresponding back-gas protection groove. An air inlet is provided between the back-gas protection groove and the side wall of the lower pressure plate, and the air inlet is connected to a gas storage cylinder through an air inlet pipe. The plate-pair to be welded is placed on the upper surface of the lower pressure plate. However, the above device, through the cooperation of components such as the lower and upper pressure rollers, makes it difficult to achieve the effect of fixing the steel plate, making it difficult to prevent the position of the steel plate from shifting during the welding process, and making it difficult to ensure that the steel plate maintains a stable position during the welding process, thus increasing welding deviation and requiring improvement. Utility Model Content

[0004] The purpose of this invention is to provide a stainless steel laser welding fixture that prevents weld oxidation, thereby solving the existing problems.

[0005] To solve the above-mentioned technical problems, this utility model is achieved through the following technical solution:

[0006] This utility model is a stainless steel laser welding fixture for preventing weld oxidation, including a protective plate, an operating table fixedly connected to the top of the protective plate, a support frame fixedly connected to the side of the operating table, a slide rail fixedly connected to the side of the support frame, a slider slidably connected to the side of the slide rail, and a welding structure provided at the bottom of the slider.

[0007] The top of the protective plate is provided with a fixing device, which includes an electric telescopic rod. The electric telescopic rod is fixedly connected to the top of the protective plate. A fixing block is fixedly connected to the telescopic end of the electric telescopic rod. A rotating rod is rotatably connected to the side of the fixing block. A fixing rod is rotatably connected to the end of the rotating rod away from the fixing block. A pressure plate is fixedly connected to one end of the fixing rod.

[0008] Furthermore, a support rod is fixedly connected to the top of the protective plate, a positioning block is fixedly connected to the top of the support rod, and a rotating rod is rotatably connected to the side of the positioning block. The circumferential surface of the rotating rod is fixedly connected to the end of the fixed rod away from the pressure plate. The design of the support rod can support the fixed rod, increasing the stability of the device.

[0009] Furthermore, the number of the electric telescopic rods is set to two, and they are symmetrical to each other along the vertical central axis of the protective plate. The design of the electric telescopic rods can effectively ensure that the steel plate maintains a stable position during the welding process and reduce welding deviation.

[0010] Furthermore, the fixing device includes a cooling structure, the cooling structure includes a fixing plate, the fixing plate is fixedly connected to the side of the pressure plate, a spring pump is fixedly connected to the top of the operating table, a connecting pipe passes through the side of the spring pump, a nozzle passes through the end of the connecting pipe away from the spring pump, and a push rod passes through the top of the spring pump.

[0011] Furthermore, a partition is fixedly connected to the bottom of the push rod, and a positioning plate is fixedly connected to the inner wall of the spring pump. The design of the partition allows the coolant to be automatically sprayed onto the welding area during the processing, which can ensure that the degree of metal melting is appropriate during the welding process.

[0012] Furthermore, a limiting rod extends through the top of the partition, and both ends of the limiting rod are fixedly connected to the inner wall of the spring pump. The design of the limiting rod can limit the position of the partition and prevent the partition from shifting.

[0013] Furthermore, a spring is fixedly connected to the bottom of the partition, and the end of the spring away from the partition is fixedly connected to the inner wall of the spring pump. The design of the spring allows the partition to automatically reset, reducing manual intervention.

[0014] This utility model has the following beneficial effects:

[0015] 1. This utility model utilizes the force of an electric telescopic rod to drive the fixed block to move, which works in conjunction with components such as the support rod, positioning block, and rotating rod in the fixing device. This achieves the effect of the fixed block moving to drive the rotating rod to rotate, and then the rotating rod rotating to drive the fixed rod to rotate along the rotating rod. This causes the end of the fixed rod away from the rotating rod to rotate downwards, and the rotation of the fixed rod drives the pressure plate to rotate downwards, thus achieving the effect of fixing the steel plate and preventing the position of the steel plate from shifting during welding. This effectively ensures that the steel plate maintains a stable position during welding and reduces welding deviations.

[0016] 2. This utility model utilizes the force of the pressure plate displacement to drive the fixed plate displacement, which, in conjunction with the spring pump, positioning plate, and limit rod in the fixing device, achieves the effect of the fixed plate squeezing the push rod, causing the push rod to drive the partition plate to move downward, thereby creating a notch on the side of the positioning plate. The coolant at the top of the spring pump flows through the notch to the bottom of the spring pump, and then is sprayed out through the connecting pipe and nozzle, thus achieving the effect of cooling the weld.

[0017] Of course, any product implementing this utility model does not necessarily need to achieve all of the advantages described above at the same time. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments 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.

[0019] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0020] Figure 2 This is a three-dimensional side view of the support rod of this utility model.

[0021] Figure 3 This is a three-dimensional side view of the pressure plate of this utility model.

[0022] Figure 4 This is a three-dimensional magnified structural diagram of the nozzle of this utility model;

[0023] Figure 5 This is a three-dimensional half-section structural diagram of the spring part of this utility model.

[0024] The attached diagram lists the components represented by each number as follows:

[0025] 101. Protective plate; 102. Operating table; 103. Support frame; 104. Slide rail; 105. Slider; 106. Welded structure; 2. Fixing device; 201. Electric telescopic rod; 202. Fixing block; 203. Rotating rod; 204. Support rod; 205. Positioning block; 206. Rotating rod; 207. Fixing rod; 208. Pressure plate; 209. Fixing plate; 210. Spring pump; 211. Connecting pipe; 212. Nozzle; 213. Push rod; 214. Positioning plate; 215. Partition plate; 216. Limiting rod; 217. Spring. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0027] Please see Figures 1-5 This utility model is a stainless steel laser welding fixture for preventing weld oxidation, including a protective plate 101, an operating table 102 fixedly connected to the top of the protective plate 101, a support frame 103 fixedly connected to the side of the operating table 102, a slide rail 104 fixedly connected to the side of the support frame 103, a slider 105 slidably connected to the side of the slide rail 104, and a welding structure 106 provided at the bottom of the slider 105.

[0028] A fixing device 2 is provided on the top of the protective plate 101. The fixing device 2 includes an electric telescopic rod 201, which is fixedly connected to the top of the protective plate 101. A fixing block 202 is fixedly connected to the telescopic end of the electric telescopic rod 201. A rotating rod 203 is rotatably connected to the side of the fixing block 202. A fixing rod 207 is rotatably connected to the end of the rotating rod 203 away from the fixing block 202. A pressure plate 208 is fixedly connected to one end of the fixing rod 207.

[0029] A support rod 204 is fixedly connected to the top of the protective plate 101. A positioning block 205 is fixedly connected to the top of the support rod 204. A rotating rod 206 is rotatably connected to the side of the positioning block 205. The circumferential surface of the rotating rod 206 is fixedly connected to the end of the fixed rod 207 away from the pressure plate 208. The design of the support rod 204 can support the fixed rod 207, increasing the stability of the device.

[0030] The number of electric telescopic rods 201 is set to two, and they are symmetrical to each other along the vertical central axis of the protective plate 101. The design of the electric telescopic rods 201 can effectively ensure that the steel plate maintains a stable position during the welding process and reduce welding deviation.

[0031] The fixing device 2 includes a cooling structure, which includes a fixing plate 209. The fixing plate 209 is fixedly connected to the side of the pressure plate 208. A spring pump 210 is fixedly connected to the top of the operating table 102. A connecting pipe 211 passes through the side of the spring pump 210. A nozzle 212 passes through the end of the connecting pipe 211 away from the spring pump 210. A push rod 213 passes through the top of the spring pump 210.

[0032] A partition plate 215 is fixedly connected to the bottom of the push rod 213, and a positioning plate 214 is fixedly connected to the inner wall of the spring pump 210. The design of the partition plate 215 allows the coolant to be automatically sprayed onto the welding area during the processing, which can ensure that the degree of metal melting is appropriate during the welding process.

[0033] A limiting rod 216 passes through the top of the partition 215. The two ends of the limiting rod 216 are fixedly connected to the inner wall of the spring pump 210. The design of the limiting rod 216 can limit the partition 215 and prevent the partition 215 from shifting.

[0034] A spring 217 is fixedly connected to the bottom of the partition 215. The end of the spring 217 away from the partition 215 is fixedly connected to the inner wall of the spring pump 210. The design of the spring 217 enables the partition 215 to automatically reset, reducing manual intervention.

[0035] A specific application of this embodiment is as follows: This application uses an electric telescopic rod 201 to drive a fixed block 202 to move, causing the telescopic end of the electric telescopic rod 201 to retract inward, thereby driving the fixed block 202 to move downward. The displacement of the fixed block 202 drives the rotating rod 203 to rotate, and the rotation of the rotating rod 203 drives the fixed rod 207 to rotate along the rotating rod 206, thereby causing the end of the fixed rod 207 away from the rotating rod 206 to rotate downward. The rotation of the fixed rod 207 drives the pressure plate 208 to rotate downward, thus achieving the function of fixing the steel plate. The displacement of the pressure plate 208 then drives the fixed plate 209 to move, and the fixed plate 209 squeezes the push rod 213, causing the push rod 213 to drive the partition 215 to move downward, thereby creating a notch on the side of the positioning plate 214. The coolant at the top of the spring pump 210 flows through the notch to the bottom of the spring pump 210, and then sprays out through the connecting pipe 211 and the nozzle 212, thus achieving the function of cooling the weld.

[0036] In the description of this specification, references to terms such as "an embodiment," "example," "specific example," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The preferred embodiments of this utility model disclosed above are merely illustrative of the present utility model. These preferred embodiments do not exhaustively describe all details, nor do they limit the utility model to the specific implementations described. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of this utility model, thereby enabling those skilled in the art to better understand and utilize it. This utility model is limited only by the claims and their full scope and equivalents.

Claims

1. A stainless steel laser welding fixture for preventing weld oxidation, comprising a protective plate (101), characterized in that: An operating table (102) is fixedly connected to the top of the protective plate (101), a support frame (103) is fixedly connected to the side of the operating table (102), a slide rail (104) is fixedly connected to the side of the support frame (103), a slider (105) is slidably connected to the side of the slide rail (104), and a welding structure (106) is provided at the bottom of the slider (105). The top of the protective plate (101) is provided with a fixing device (2), which includes an electric telescopic rod (201). The electric telescopic rod (201) is fixedly connected to the top of the protective plate (101). The telescopic end of the electric telescopic rod (201) is fixedly connected to a fixing block (202). The side of the fixing block (202) is rotatably connected to a rotating rod (203). The end of the rotating rod (203) away from the fixing block (202) is rotatably connected to a fixing rod (207). One end of the fixing rod (207) is fixedly connected to a pressure plate (208).

2. The stainless steel laser welding fixture for preventing weld oxidation according to claim 1, characterized in that, A support rod (204) is fixedly connected to the top of the protective plate (101), a positioning block (205) is fixedly connected to the top of the support rod (204), a rotating rod (206) is rotatably connected to the side of the positioning block (205), and the circumferential surface of the rotating rod (206) is fixedly connected to the end of the fixed rod (207) away from the pressure plate (208).

3. The stainless steel laser welding fixture for preventing weld oxidation according to claim 2, characterized in that, The number of electric telescopic rods (201) is set to two, and they are symmetrical to each other along the vertical central axis of the protective plate (101).

4. The stainless steel laser welding fixture for preventing weld oxidation according to claim 3, characterized in that, The fixing device (2) includes a cooling structure, which includes a fixing plate (209) fixedly connected to the side of the pressure plate (208). A spring pump (210) is fixedly connected to the top of the operating table (102). A connecting pipe (211) passes through the side of the spring pump (210). A nozzle (212) passes through the end of the connecting pipe (211) away from the spring pump (210). A push rod (213) passes through the top of the spring pump (210).

5. The stainless steel laser welding fixture for preventing weld oxidation according to claim 4, characterized in that, A partition plate (215) is fixedly connected to the bottom of the push rod (213), and a positioning plate (214) is fixedly connected to the inner wall of the spring pump (210).

6. The stainless steel laser welding fixture for preventing weld oxidation according to claim 5, characterized in that, A limiting rod (216) passes through the top of the partition (215), and both ends of the limiting rod (216) are fixedly connected to the inner wall of the spring pump (210).

7. A stainless steel laser welding fixture for preventing weld oxidation according to claim 6, characterized in that, A spring (217) is fixedly connected to the bottom of the partition (215), and the end of the spring (217) away from the partition (215) is fixedly connected to the inner wall of the spring pump (210).

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