Welding tool for sensor machining

Abstract

The welding tool comprises a workbench, the workbench is provided with a welding device, a height adjusting device, a rotating device and a clamping device, the height adjusting device is arranged at the top end of the workbench and comprises a first driving assembly, an adjusting assembly and a fixing assembly, and a shaft body of the first driving assembly is in threaded connection with the adjusting assembly; the fixing assembly is fixed to a plate body of the adjusting assembly and used for fixing the welding device, the rotating device is arranged above the workbench and comprises a second motor and a rotating assembly, the second motor is fixed to the right end of the rotating assembly, and the clamping device comprises a second driving assembly, a connecting assembly and four clamping assemblies. The second driving assembly is arranged in the rotating assembly and engaged with the connecting assembly, and the four clamping assemblies are distributed in the rotating assembly in a surrounding mode. Therefore, sensor probe welding can be efficiently completed without frequently replacing the clamp, the machining efficiency is effectively improved, and the clamp damage and maintenance cost is reduced.

Description

Technical Field

[0001] This application relates to the technical field of sensor welding and processing, and more particularly to welding fixtures used in sensor processing. Background Technology

[0002] As a core component for receiving signals and converting physical / chemical quantities, sensors play an irreplaceable role in fields such as automation control, security monitoring, and intelligent manufacturing. Their processing precision directly affects the accuracy and stability of signal detection, and the welding process of sensor probes is a key step in ensuring their mechanical strength and electrical performance.

[0003] During the welding process of sensor probes, specialized tooling is required to ensure stable fixation of the sensor and precise alignment of the welding torch. However, due to the significant differences in probe size and shape structure among different types of sensors (such as different diameters, lengths, and circumferential positioning requirements), the clamping mechanisms of traditional tooling are usually designed with fixed specifications, which can only accommodate sensors of a single or small range of sizes. When welding sensors of different specifications, operators must frequently change the corresponding clamping fixtures, which not only consumes a lot of time for fixture disassembly and calibration, reducing processing efficiency, but also, due to frequent mechanical disassembly and assembly operations, can easily lead to misalignment of the fixture positioning reference and wear of parts, increasing the risk of fixture damage and subsequent maintenance costs. Summary of the Invention

[0004] This application aims to at least partially address one of the technical problems in the related art.

[0005] Therefore, this application provides a welding fixture for sensor processing, which can effectively improve the applicability of welding operations for sensors of different specifications, and can efficiently complete the welding of sensor probes without frequent fixture changes, thereby effectively improving processing efficiency and reducing fixture damage and maintenance costs.

[0006] To achieve the above objectives, this application proposes a welding fixture for sensor processing, including a worktable. The worktable is equipped with a welding device, a height adjustment device, a rotating device, and a clamping device. The height adjustment device is located at the top of the worktable and includes a first driving component, an adjustment component, and a fixing component. The shaft of the first driving component is threadedly connected to the adjustment component to drive the adjustment component to move up and down. The fixing component is fixed to the plate of the adjustment component to fix the welding device. The rotating device is located above the worktable and includes a second motor and a rotating component. The second motor is fixed to the right end of the rotating component to drive the rotating component to rotate. The clamping device includes a second driving component, a connecting component, and four clamping components. The second driving component is located inside the rotating component and engages with the connecting component. The four clamping components are distributed around the rotating component to circumferentially clamp and fix the sensor placed on the rotating component.

[0007] The welding fixture for sensor processing described in this application, by setting up circumferentially evenly distributed synchronously adjustable clamping components to adapt to the rapid fixation of sensors of different specifications, combined with a welding device with adjustable height and angle and a rotary drive structure, can efficiently complete the welding of sensor probes without frequent fixture changes, effectively improving processing efficiency and reducing fixture damage and maintenance costs.

[0008] In addition, the welding fixture for sensor processing proposed above according to this application may also have the following additional technical features: Furthermore, the bottom of the workbench is fixedly equipped with four support legs to support the workbench, and the top of the workbench is fixedly equipped with a support plate to support the first drive assembly.

[0009] Furthermore, the welding device includes a welding machine fixedly mounted on the top of the workbench, with two connecting lines connected to the left end of the welding machine, and a welding torch for welding the sensor is provided at the end of the two connecting lines away from the welding machine.

[0010] Furthermore, the first drive assembly includes a fixed column fixedly installed on the top of the support plate, and a first threaded rod for driving the adjustment assembly to move up and down is provided inside the fixed column. A first motor for driving the first threaded rod to rotate is provided at the top of the first threaded rod.

[0011] Furthermore, the adjusting assembly includes a threaded sleeve plate disposed within a fixed column for threaded connection with the first threaded rod, a hinge ball fixedly mounted at the bottom end of the threaded sleeve plate, and a connecting rod for adjusting the angle disposed at the bottom end of the hinge ball.

[0012] Furthermore, the fixing assembly includes a support ring fixedly installed at the bottom end of the connecting rod for supporting the welding torch. A clamping ring for holding the welding torch is provided inside the support ring. A round rod for moving within the support ring is fixedly installed at one end of the clamping ring near the support ring. A limiting plate for preventing the round rod from moving out of the support ring is fixedly installed at the other end of the round rod away from the clamping ring. A spring for driving the clamping ring to clamp the welding torch is fixedly installed at the other end of the limiting plate away from the round rod.

[0013] Furthermore, the rotating assembly includes a rotating shaft movably connected to the support plate for rotation, a placement cavity for placing the connecting assembly is provided inside the rotating shaft, a locking hole for locking the second drive assembly is provided on the shaft body, and four placement slots are provided on the shaft body, with the placement slots located to the left of the locking hole; a cover plate for sealing the placement cavity is provided at the left end of the rotating shaft.

[0014] Furthermore, the second drive assembly includes a first drive shaft movably connected to the rotating shaft for rotation, a handwheel for driving the first drive shaft to rotate is fixedly installed at the top end of the first drive shaft, a locking rod for locking the handwheel by threaded connection with a locking hole is provided on the wheel body of the handwheel, and a first bevel gear for driving the connecting assembly to rotate is fixedly installed at the bottom end of the first drive shaft.

[0015] Furthermore, the connecting assembly includes a second drive shaft disposed within the placement cavity for rotation, a second bevel gear fixedly mounted on the shaft body for meshing with the first bevel gear, and a third bevel gear fixedly mounted on the shaft body for driving four clamping assemblies to clamp and fix the sensor mounted on the rotating shaft.

[0016] Furthermore, the clamping assembly includes a fixed plate fixedly installed on the right end of the cover plate. A second threaded rod for rotation is movably connected to the plate body of the fixed plate. A fourth bevel gear for meshing with a third bevel gear is fixedly installed on the shaft of the second threaded rod. A movable plate for vertical movement is threadedly connected to the shaft of the second threaded rod. Two guide rods are fixedly installed on the plate body of the movable plate. A clamping plate for clamping and fixing the sensor is fixedly installed at the end of the guide rod away from the movable plate. A slide rod for penetrating the movable plate is fixedly installed on the plate body of the fixed plate.

[0017] Compared with the prior art, the beneficial effects of this application are as follows: 1. Adaptable to different sensors: The second drive component of the clamping device drives the connecting component to operate. Utilizing the opposite characteristics of the threaded guides of the opposing second threaded rods, the moving plates of the four clamping components are synchronously driven to move towards the rotating shaft. This allows the four clamping plates to stably clamp and fix sensor probes of different sizes mounted on the rotating shaft. There is no need to change the clamps for different specifications of sensors, which reduces the time and labor costs of replacement operations and also reduces the risk of clamp damage due to frequent replacements.

[0018] 2. More convenient and efficient welding operation: The height adjustment device can drive the adjustment component to move up and down through the first drive component, so that the welding device is closer to the sensor; the rotation device can drive the sensor to rotate under the drive of the second motor. Combined with the stable fixation of the clamping device, it can realize fast and multi-angle welding of the sensor probe, improving welding efficiency and flexibility.

[0019] 3. Guaranteed welding precision: The fixing component uses a spring-driven clamping ring to stably hold the welding torch. The angle of the welding torch can be finely adjusted with the hinge ball and connecting rod to ensure that the welding torch is accurately aligned with the welding position. The stable clamping of the limiting mechanism also prevents the sensor from shaking during the welding process, thus ensuring the welding quality.

[0020] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the following description of the embodiments taken in conjunction with the accompanying drawings, wherein: Figure 1 This is a schematic diagram of the overall structure of a welding fixture for sensor processing according to an embodiment of this application; Figure 2 This is a partial cross-sectional view of the workbench of a welding fixture for sensor processing according to an embodiment of this application; Figure 3 This is a schematic diagram of the height adjustment device for welding fixtures used in sensor processing according to an embodiment of this application; Figure 4 A welding fixture for sensor fabrication according to one embodiment of this application Figure 3 Enlarged view of point A in the middle; Figure 5 This is a schematic diagram of the rotating assembly structure of a welding fixture for sensor processing according to an embodiment of this application; Figure 6 This is a schematic diagram of the clamping device structure of a welding fixture for sensor processing according to an embodiment of this application; Figure 7 A welding fixture for sensor fabrication according to one embodiment of this application Figure 6 Enlarged view at point B in the middle; Figure 8 A welding fixture for sensor fabrication according to one embodiment of this application Figure 6 Enlarged view of point C in the middle.

[0022] As shown in the figure: 100, workbench; 101, support leg; 102, support plate; 200, welding device; 210, welding machine; 220, connecting line; 230, welding torch; 300, height adjustment device; 310, first drive assembly; 311, fixed column; 312, first motor; 313, first threaded rod; 320, adjustment assembly; 321, threaded sleeve; 322, hinge ball; 323, connecting rod; 330, fixing assembly; 331, support ring; 332, spring; 333, limiting plate; 334, round rod; 335, clamping ring; 400, rotating device; 410, second motor; 420. Rotating assembly; 421. Rotating shaft; 422. Placement cavity; 423. Cover plate; 424. Placement slot; 425. Locking hole; 500. Clamping device; 510. Second drive assembly; 511. Handwheel; 512. Locking rod; 513. First drive shaft; 514. First bevel gear; 520. Connecting assembly; 521. Second drive shaft; 522. Second bevel gear; 523. Third bevel gear; 530. Clamping assembly; 531. Fourth bevel gear; 532. Second threaded rod; 533. Slide rod; 534. Guide rod; 535. Clamping plate; 536. Moving plate; 537. Fixed plate. Detailed Implementation

[0023] Embodiments of this application are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this application, and should not be construed as limiting this application. Rather, embodiments of this application include all variations, modifications, and equivalents falling within the spirit and scope of the appended claims.

[0024] The welding fixture for sensor processing according to embodiments of this application will now be described with reference to the accompanying drawings.

[0025] like Figures 1-8 As shown, the welding fixture for sensor processing in this application embodiment may include a worktable 100, on which a welding device 200, a height adjustment device 300, a rotating device 400, and a clamping device 500 are provided.

[0026] The height adjustment device 300 is located at the top of the workbench 100 and includes a first drive component 310, an adjustment component 320 and a fixing component 330.

[0027] The shaft of the first drive assembly 310 is threadedly connected to the adjustment assembly 320 to drive the adjustment assembly 320 to move up and down. The fixing assembly 330 is fixed on the plate of the adjustment assembly 320 to fix the welding device 200.

[0028] The rotating device 400 is located above the worktable 100 and includes a second motor 410 and a rotating assembly 420. The second motor 410 is fixed to the right end of the rotating assembly 420 and is used to drive the rotating assembly 420 to rotate.

[0029] The clamping device 500 includes a second drive assembly 510, a connection assembly 520, and four clamping assemblies 530.

[0030] The second drive component 510 is located inside the rotating component 420 and engages with the connecting component 520. Four clamping components 530 are distributed around the rotating component 420 to clamp and fix the sensor placed on the rotating component 420 in a circumferential manner.

[0031] Specifically, when welding the sensor, the relevant personnel first place the sensor to be welded on the rotating component 420, and then the second drive component 510 is operated, which meshes with the connecting component 520 to drive the four surrounding clamping components 530 to move synchronously, thereby clamping and fixing the sensor placed on the rotating component 420 in a circumferential manner and completing the positioning of the sensor.

[0032] Subsequently, the first drive assembly 310 is activated, and its shaft is connected to the adjustment assembly 320 via a threaded connection, driving the adjustment assembly 320 to move up and down. This, in turn, drives the fixing assembly 330 fixed on the plate of the adjustment assembly 320 and the welding device 200 fixed to the fixing assembly 330 to move up and down synchronously, adjusting the height distance between the welding device 200 and the part of the sensor to be welded until a suitable welding height is reached.

[0033] The welding device 200 starts to weld the part of the sensor to be welded. At the same time, the second motor 410 of the rotating device 400 drives the rotating component 420 to rotate, which drives the sensor fixed by the clamping component 530 to rotate synchronously, so as to realize the continuous welding operation of the circumferential welding part of the sensor.

[0034] After welding is completed, the welding device 200 stops working. The first drive component 310 drives the adjustment component 320 to move the welding device 200 upward to reset. The second drive component 510 rotates in the opposite direction, and through the connecting component 520, it drives the clamping component 530 to release the sensor. The second motor 410 stops driving the rotating component 420 to rotate, and the welded sensor is removed, completing one welding process.

[0035] In one embodiment of this application, such as Figure 2As shown, the bottom of the workbench 100 is fixedly equipped with support legs 101 to support the workbench 100, and there are four support legs 101, which are distributed in a rectangular array at the four corners of the bottom of the workbench 100.

[0036] Specifically, the worktable 100 can be supported by four support legs 101. A support plate 102 for supporting the first drive assembly 310 is fixedly installed on the top of the worktable 100, and the support plate 102 is welded to the top of the worktable 100.

[0037] In one embodiment of this application, such as Figure 2 As shown, the welding device 200 includes a welding machine 210 fixedly installed on the top of the workbench 100. The welding machine 210 is prior art, and those skilled in the art can recognize the welding machine 210 described in this application through conventional means. The left end of the welding machine 210 is connected to two connecting lines 220, and the end of the two connecting lines 220 away from the welding machine 210 is provided with a welding gun 230 for welding the sensor.

[0038] Specifically, the welding machine 210, as the power source and control core of the welding device, is fixedly installed on the top of the workbench 100. The welding machine 210 belongs to the existing mature technology. Its function is to provide the electrical energy required for welding and to control the welding current, voltage and other parameters through internal circuits to ensure the stability of the welding process.

[0039] One end of the connecting line 220 is connected to the left end of the welding machine 210, and the other end is connected to the welding gun 230. The function of the connecting line 220 is to transmit electrical energy and control signals, conduct the output energy of the welding machine 210 to the welding gun 230, and realize the operation control of the welding gun by the welding machine.

[0040] The welding torch 230 is connected to the end of the two connecting lines 220 away from the welding machine 210. It is the execution component that directly welds the sensor. The welding torch 230 generates a high-temperature electric arc or flame through electrical energy conversion, which melts the welding material (such as welding wire) and the part of the sensor to be welded, thereby achieving the welding and fixing of the sensor probe.

[0041] The welding device 200 does not work independently, but rather works in conjunction with other devices in the tooling to improve welding efficiency and flexibility.

[0042] The welding device 200 works in conjunction with the height adjustment device 300. The welding torch 230 is fixed to the bottom end of the connecting rod 323 of the adjustment component 320 by the fixing component 330 (such as the support ring 331 and the clamping ring 335). The first driving component 310 (first motor 312 and first threaded rod 313) can drive the adjustment component 320 to move up and down, thereby adjusting the height of the welding torch 230 so that it is accurately aligned with the part of the sensor to be welded.

[0043] The welding device 200 works in conjunction with the rotating device 400. When the second motor 410 of the rotating device 400 drives the rotating component 420 (rotating shaft 421) to rotate, the sensor fixed by the clamping device 500 rotates synchronously with the rotating shaft. The welding torch 230 can continuously and uniformly weld the circumferential welding parts of the sensor without manually adjusting the sensor position.

[0044] In one embodiment of this application, such as Figure 3 and Figure 4 As shown, the first drive assembly 310 includes a fixed post 311 fixedly installed on the top of the support plate 102, and the fixed post 311 is welded to the top of the support plate 102. The fixed post 311 is provided with a first threaded rod 313 for driving the adjustment assembly 320 to move up and down. The first threaded rod 313 passes through the top of the fixed post 311 and is connected to the top of the fixed post 311 through a bearing.

[0045] Furthermore, the adjusting assembly 320 includes a threaded sleeve 321 disposed within the fixed post 311 for threaded connection with the first threaded rod 313. The shape of the threaded sleeve 321 is the same as the inner cavity of the fixed post 311. Therefore, when the threaded sleeve 321 moves up and down along the first threaded rod 313, it can always maintain the up and down movement of the threaded sleeve 321 along the first threaded rod 313 under the restriction of the inner cavity of the fixed post 311, without rotation. A hinge ball 322 is fixedly installed at the bottom end of the threaded sleeve 321, and a connecting rod 323 for adjusting the angle is provided at the bottom end of the hinge ball 322.

[0046] Specifically, the threaded sleeve 321 is a plate-shaped structure whose external dimensions are perfectly matched with the inner cavity shape of the fixed column 311 (such as square or round, adapted to the inner cavity of the fixed column), ensuring that it can slide smoothly in the fixed column 311 but cannot rotate. The threaded sleeve 321 has an internal threaded hole in its center, which forms a threaded connection with the first threaded rod 313 of the first drive assembly 310. The rotation of the first threaded rod 313 drives the threaded sleeve 321 to move up and down axially. The hinge ball 322 is a spherical connector, which is fixed to the bottom center of the threaded sleeve 321 by welding or bolting, ensuring that it moves synchronously with the threaded sleeve 321. The top of the connecting rod 323 has a spherical groove that is adapted to the hinge ball 322. The groove is sleeved on the outside of the hinge ball 322 to form a movable hinge structure.

[0047] When the height of the welding device 200 needs to be adjusted, the first motor 312 (powered by an external power source) is started. The output shaft of the first motor 312 begins to rotate. The rotational motion of the first motor 312 is transmitted to the first threaded rod 313 through a coupling, causing the first threaded rod 313 to rotate synchronously around its own axis (because the top of the first threaded rod 313 is connected to the fixed column 311 through a bearing, the frictional resistance during rotation is small and the stability is high). The rotational motion of the first threaded rod 313 is transmitted to the threaded sleeve 321 of the adjusting component 320 through a threaded connection. Since the shape of the threaded sleeve 321 matches the inner cavity of the fixed column 311, it cannot rotate with the first threaded rod 313. Therefore, it is forced to make a vertical linear motion along the axis of the first threaded rod 313. The vertical movement of the threaded sleeve 321 causes the hinge ball 322, the connecting rod 323, and the fixing component 330 of the adjusting component 320 to move synchronously, ultimately enabling the welding torch 230 fixed on the fixing component 330 to achieve height adjustment (moving closer to or further away from the sensor to be welded).

[0048] When the welding torch 230 reaches the preset height, the first motor 312 is turned off, the first threaded rod 313 stops rotating, and the threaded sleeve 321 maintains its current position due to the self-locking characteristic of the thread, thus achieving the height positioning of the welding device 200.

[0049] Once the height of the welding torch 230 is determined, if the welding angle needs to be adjusted to accommodate the tilting welding requirements of the sensor probe, the operator can manually push the connecting rod 323. The connecting rod 323 rotates around the hinge ball 322 as a fulcrum, and achieves multi-angle tilting through the relative sliding between the spherical groove and the hinge ball 322 (such as adjusting the welding tilt angle of the welding torch 230 to ensure that the welding wire or arc is accurately aligned with the welding joint). Since there is a moderate friction between the hinge ball 322 and the groove of the connecting rod 323, the connecting rod 323 can maintain the current angle after adjustment, and can operate stably without additional locking components (if higher stability is required, an auxiliary locking structure can be designed, such as bolts tightening the hinge ball).

[0050] In one embodiment of this application, the fixing assembly 330 includes a support ring 331 fixedly installed at the bottom end of the connecting rod 323 for supporting the welding torch 230. The support ring 331 is provided with a clamping ring 335 for clamping the welding torch 230. The clamping ring 335 is located inside the support ring 331, and there are two clamping rings 335, which are symmetrically distributed inside the support ring 331. A round rod 334 for moving inside the support ring 331 is fixedly installed at the end of the clamping ring 335 near the support ring 331, and the round rod 334 can move inside the support ring 331. A limiting plate 333 for preventing the round rod 334 from moving out of the support ring 331 is fixedly installed at the end of the limiting plate 333 away from the round rod 334. A spring 332 for driving the clamping ring 335 to clamp the welding torch 230 is fixedly installed at the end of the limiting plate 333 away from the round rod 334.

[0051] Specifically, the support ring 331 is an annular structure, fixedly installed at the bottom end of the connecting rod 323 of the adjusting assembly 320 (connected by welding or bolts), serving as the basic carrier of the entire fixing assembly, used to support the welding torch 230 and other clamping components. Symmetrically distributed through holes are provided on the ring body of the support ring 331, allowing the round rod 334 to pass through and move freely. The clamping rings 335 are two arc-shaped structures with anti-slip textures on the inner side (increasing friction with the welding torch 230), symmetrically distributed inside the support ring 331, forming a circular clamping space adapted to the outer diameter of the welding torch 230. The outer sides of the two clamping rings 335 (the side closest to the support ring 331) are respectively fixedly connected to one end of the round rod 334 (welded). (Or integrally formed), moving synchronously with the round rod 334. The round rod 334 is a cylindrical rod, one end of which is fixed to the clamping ring 335, and the other end passes through the through hole of the support ring 331 and is connected to the limiting plate 333. It can move axially along the through hole of the support ring 331. The limiting plate 333 is a circular or square thin plate, fixed to the end of the round rod 334 away from the clamping ring 335. Its diameter is larger than the diameter of the through hole on the support ring 331. It is used to prevent the round rod 334 from completely moving out of the support ring 331 and plays a limiting role. In the natural state, the spring 332 is in a slightly compressed state. The limiting plate 333 and the round rod 334 apply an inward preload to the clamping ring 335 to ensure that the clamping ring 335 maintains a closed tendency.

[0052] The operator manually pulls the two clamping rings 335 to both sides. The clamping rings 335 drive the round rod 334 to move outward along the through hole of the support ring 331. The limiting plate 333 at the other end of the round rod 334 moves outward synchronously, compressing the spring 332 (spring energy storage). At this time, the distance between the two clamping rings 335 increases, forming a space for the welding torch 230 to be inserted.

[0053] Align the welding torch 230 with the space between the two clamping rings 335 and slowly insert it into the support ring 331, ensuring that the welding end of the welding torch 230 faces the part of the sensor to be welded. Then release the clamping rings 335, and the spring 332 releases its elastic potential energy, pushing the limiting plate 333 to move inward. The round rod 334 drives the two clamping rings 335 to move towards the center synchronously until the inner sidewall of the clamping rings 335 is tightly attached to the body of the welding torch 230. Under the continuous pre-tightening force of the spring 332, the welding torch 230 is stably clamped in the support ring 331, completing the installation.

[0054] During the welding process, the support ring 331 is connected to the adjustment component 320 through the connecting rod 323. The height and angle are adjusted with the adjustment component to ensure that the welding torch 230 is accurately aligned with the welding position. The clamping ring 335 always applies clamping force to the welding torch 230 under the elastic force of the spring 332. With the anti-slip texture on the inner side, it effectively prevents the welding torch 230 from loosening or shifting during welding vibration or angle adjustment, thus ensuring welding accuracy.

[0055] When the welding torch 230 needs to be replaced or the welding operation is completed, the operator pulls the clamping ring 335 to both sides again to compress the spring 332, so that the clamping ring 335 is separated from the welding torch 230, and the welding torch 230 can be taken out from the support ring 331. After the welding torch is taken out, the clamping ring 335 is released, the spring 332 returns to its original position, and the clamping ring 335, the round rod 334 and the limiting plate 333 return to their initial positions, ready for the next use.

[0056] In one embodiment of this application, such as Figure 5 As shown, the rotating assembly 420 includes a rotating shaft 421 movably connected to the support plate 102 for rotation. The shaft of the rotating shaft 421 is connected to the plate of the support plate 102 via bearings, thus facilitating the rotation of the rotating shaft 421. A placement cavity 422 for placing the connecting assembly 520 is provided inside the rotating shaft 421. A locking hole 425 for locking the second drive assembly 510 is provided on the shaft of the rotating shaft 421, and the locking hole 425 has several... Several locking holes 425 are arranged in a circular array on the shaft of the rotating shaft 421. Four placement slots 424 are provided on the shaft of the rotating shaft 421, and the placement slots 424 are located to the left of the locking holes 425. The four placement slots 424 are arranged in a circular array on the shaft of the rotating shaft 421. A cover plate 423 for sealing the placement cavity 422 is provided at the left end of the rotating shaft 421. The cover plate 423 can be installed at the left end of the rotating shaft 421 by bolts.

[0057] Specifically, the cover plate 423 is fixed to the left end of the rotating shaft 421 by bolts, sealing the placement cavity 422. The locking rod 512 of the second drive assembly 510 is screwed into a locking hole 425, so that the second drive assembly 510 is fixed relative to the rotating shaft 421. The four placement slots 424 are in an empty state, waiting for the clamping assembly 530 to move.

[0058] The operator places the sensor to be welded on the left end of the rotating shaft 421 (near the cover plate 423), aligning the part of the sensor to be welded with the welding torch 230. The second drive component 510 and the connecting component 520 of the clamping device 500 drive the clamping component 530 to move, and the clamping plate 535 passes through the placement groove 424 to clamp and fix the sensor circumferentially.

[0059] Loosen the locking rod 512 of the second drive assembly 510 (screw it out from the locking hole 425), release the fixation between the second drive assembly 510 and the rotating shaft 421, start the second motor 410 of the rotating device 400, the output shaft of the second motor 410 drives the rotating shaft 421 to rotate around its own axis through the coupling, the rotating shaft 421 drives the sensor fixed on it to rotate synchronously, at the same time the connecting assembly 520 in the placement cavity 422 rotates together with the rotating shaft 421 (the second drive assembly 510 can rotate relative to the rotating shaft because it is not locked), the welding gun 230 of the welding device 200 is aligned with the part of the sensor to be welded, and completes circumferential continuous welding as the sensor rotates.

[0060] After welding is completed, the second motor 410 is turned off, the rotating shaft 421 stops rotating, the locking rod 512 of the second drive assembly 510 is screwed back into the locking hole 425 to fix the second drive assembly 510 and the rotating shaft 421, the sensor is released by the clamping device 500, the welded sensor is removed, the rotating assembly 420 returns to its initial state, and waits for the next operation.

[0061] In one embodiment of this application, such as Figure 6 , Figure 7 and Figure 8 As shown, the second drive assembly 510 includes a first drive shaft 513 movably connected to the rotating shaft 421 for rotation. The first drive shaft 513 is connected to the shaft body of the rotating shaft 421 via a bearing. A handwheel 511 for driving the first drive shaft 513 to rotate is fixedly installed at the top end of the first drive shaft 513. A locking rod 512 is provided on the wheel body of the handwheel 511 for locking the handwheel 511 by threaded connection with the locking hole 425. Therefore, the locking rod 512 can pass through the handwheel 511 and be threadedly connected with the locking hole 425 to lock the handwheel 511. Thus, the rotation of the first drive shaft 513 due to the rotation of the rotating shaft 421 can be avoided. A first bevel gear 514 for driving the connecting assembly 520 to rotate is fixedly installed at the bottom end of the first drive shaft 513.

[0062] Furthermore, the connecting assembly 520 includes a second drive shaft 521 disposed within the placement cavity 422 for rotation. The left end of the second drive shaft 521 is connected to the cover plate 423 via a bearing, and the right end of the second drive shaft 521 is connected to the wall of the placement cavity 422 via a bearing, thus facilitating the rotation of the second drive shaft 521. A second bevel gear 522 for meshing with the first bevel gear 514 is fixedly mounted on the shaft of the second drive shaft 521. A third bevel gear 523 for driving the four clamping assemblies 530 to clamp and fix the sensor mounted on the rotating shaft 421 is fixedly mounted on the shaft of the second drive shaft 521, wherein the third bevel gear 523 is located to the left of the second bevel gear 522.

[0063] Furthermore, the clamping assembly 530 includes a fixing plate 537 fixedly mounted on the right end of the cover plate 423. A second threaded rod 532 for rotation is movably connected to the plate body of the fixing plate 537. The rod body of the second threaded rod 532 is connected to the shaft of the rotating shaft 421 via a bearing, and the rod body of the second threaded rod 532 is connected to the fixing plate 537 via a bearing to facilitate the rotation of the second threaded rod 532. Simultaneously, the threaded guides of the two opposing second threaded rods 532 are opposite. A bevel gear 423 for meshing with the third bevel gear 523 is fixedly mounted on the shaft body of the second threaded rod 532. 31. A movable plate 536 for vertical movement is threadedly connected to the shaft of the second threaded rod 532. Two guide rods 534 are fixedly installed on the movable plate 536. A clamping plate 535 for clamping and fixing the sensor is fixedly installed at the end of the guide rod 534 away from the movable plate 536. The clamping plate 535 has anti-slip patterns. A slide rod 533 for passing through the movable plate 536 is fixedly installed on the plate of the fixed plate 537. The function of the slide rod 533 is to prevent the movable plate 536 from rotating when it moves up and down along the second threaded rod 532.

[0064] Specifically, in the initial state, the locking rod 512 of the second drive assembly 510 is screwed into the locking hole 425 of the rotating shaft 421, fixing the handwheel 511 relative to the rotating shaft 421. The first drive shaft 513 and the first bevel gear 514 are in a stationary state. The second drive shaft 521, the second bevel gear 522, and the third bevel gear 523 of the connecting assembly 520 are all stationary. The second bevel gear 522 and the first bevel gear 514 are engaged but do not rotate relative to each other. The four clamping plates 535 of the clamping assembly 530 are in an open state (away from the axis of the rotating shaft 421). The moving plate 536 is located at the initial position of the second threaded rod 532. The slide rod 533 passes through the moving plate 536 to ensure that it does not rotate or deviate.

[0065] During welding, the operator places the sensor to be welded on the left end of the rotating shaft 421 (near the cover plate 423), aligning the part of the sensor to be welded with the direction of the welding torch 230, ensuring that the sensor axis is basically coincident with the axis of the rotating shaft 421. The operator then loosens the locking rod 512 of the second drive assembly 510, allowing it to exit from the locking hole 425, thus releasing the handwheel 511 from the rotating shaft 421. At this point, the first drive shaft 513 can rotate freely relative to the rotating shaft 421. The operator then rotates the handwheel 511 clockwise, causing the handwheel 511 to drive the first drive shaft 513 to rotate around its own axis (the first drive shaft 513 rotates freely relative to the rotating shaft 421). The moving shaft 513 is connected to the rotating shaft 421 through a bearing (resistance is low). The first bevel gear 514 at the bottom of the first transmission shaft 513 rotates synchronously with it. Since the first bevel gear 514 meshes with the second bevel gear 522 of the connecting assembly 520, the power is transmitted to the second bevel gear 522 through gear transmission, which drives the second transmission shaft 521 to rotate. When the second transmission shaft 521 rotates, the third bevel gear 523 on it rotates synchronously. The third bevel gear 523 meshes with the four bevel gears 531 of the four clamping assemblies 530 respectively, thereby driving the four bevel gears 531 to rotate synchronously.

[0066] The rotation of bevel gear 531 drives the second threaded rod 532 to rotate around its own axis. Since the two opposing second threaded rods 532 have opposite thread directions (such as one set of clockwise threads and one set of counterclockwise threads), when the second threaded rod 532 rotates, the moving plate 536 connected to it moves synchronously along the slide rod 533 towards the axis of the rotating shaft 421 (to avoid rotational deviation). The moving plate 536 drives the clamping plate 535 to move synchronously through the guide rod 534. The four clamping plates 535 move closer to the outer wall of the sensor from all sides until the anti-slip pattern on the inner side of the clamping plate 535 is in close contact with the outer wall of the sensor. After the operator feels the clamping resistance, he stops rotating the handwheel 511. At this time, the sensor is evenly clamped in the circumference by the four clamping plates 535, achieving stable fixation.

[0067] Re-screw the locking rod 512 of the second drive assembly 510 into the locking hole 425 of the rotating shaft 421, and fix the handwheel 511 to the rotating shaft 421 to prevent the first drive shaft 513 from reversing due to vibration during the welding process, ensuring a stable clamping state. Start the second motor 410 of the rotating device 400, and the rotating shaft 421 drives the sensor, cover plate 423 and clamping assembly 530 to rotate as a whole. The connecting assembly 520 rotates synchronously with the rotating shaft 421 (at this time, the second drive assembly 510 is locked and has no relative movement with the rotating shaft 421).

[0068] The welding device 200 is started, the welding torch 230 is aligned with the part of the sensor to be welded, and the circumferential continuous welding is completed as the sensor rotates. The anti-slip pattern of the clamping plate 535 effectively prevents the sensor from sliding during rotation.

[0069] After welding is completed, the second motor 410 is turned off, the rotating shaft 421 stops rotating, the locking rod 512 is loosened, the handwheel 511 is released from the fixing of the rotating shaft 421, the operator rotates the handwheel 511 counterclockwise, the power is transmitted in the reverse direction to the clamping assembly 530 through the first transmission shaft 513, the first bevel gear 514, and the connecting assembly 520, the second threaded rod 532 rotates in the reverse direction, the moving plate 536 moves along the slide rod 533 in a direction away from the axis of the rotating shaft 421, the clamping plate 535 opens synchronously, after the clamping plate 535 is completely separated from the sensor, the welded sensor is removed, the handwheel 511 is rotated clockwise to reset the clamping assembly, and then the locking rod 512 is screwed into the locking hole 425 to restore the initial state, waiting for the next operation.

[0070] In summary, the welding fixture for sensor processing in this application embodiment, by setting up circumferentially evenly distributed synchronously adjustable clamping components to adapt to the rapid fixing of sensors of different specifications, combined with a welding device with adjustable height and angle and a rotary drive structure, can efficiently complete the welding of sensor probes without frequent fixture changes, effectively improving processing efficiency and reducing fixture damage and maintenance costs.

[0071] In the description of this specification, 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, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0072] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," 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 this application. 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. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0073] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application.

Claims

1. A welding fixture for sensor processing, characterized in that, The system includes a worktable, on which a welding device, a height adjustment device, a rotating device, and a clamping device are provided. The height adjustment device is located at the top of the workbench and includes a first drive assembly, an adjustment assembly, and a fixing assembly. The shaft of the first drive component is threadedly connected to the adjustment component, and is used to drive the adjustment component to move up and down; The fixing component is fixed to the plate of the adjusting component and is used to fix the welding device; The rotating device is located above the worktable and includes a second motor and a rotating assembly. The second motor is fixed to the right end of the rotating assembly and is used to drive the rotating assembly to rotate. The clamping device includes a second drive assembly, a connecting assembly, and four clamping assemblies, wherein... The second drive component is located inside the rotating component and engages with the connecting component; The four clamping components are distributed around the rotating component and are used to clamp and fix the sensor placed on the rotating component in a circumferential manner.

2. The welding fixture for sensor processing according to claim 1, characterized in that, The bottom of the workbench is fixedly equipped with four support legs to support the workbench, and the top of the workbench is fixedly equipped with a support plate to support the first drive assembly.

3. The welding fixture for sensor processing according to claim 1, characterized in that, The welding device includes a welding machine fixedly installed on the top of the workbench. Two connecting lines are connected to the left end of the welding machine, and a welding gun for welding the sensor is provided at the end of the two connecting lines away from the welding machine.

4. The welding fixture for sensor processing according to claim 2, characterized in that, The first drive assembly includes a fixed column fixedly installed on the top of the support plate, and a first threaded rod for driving the adjustment assembly to move up and down is provided inside the fixed column. A first motor for driving the first threaded rod to rotate is provided at the top of the first threaded rod.

5. The welding fixture for sensor processing according to claim 4, characterized in that, The adjustment assembly includes a threaded sleeve plate disposed inside a fixed column for threaded connection with a first threaded rod. A hinge ball is fixedly installed at the bottom end of the threaded sleeve plate, and a connecting rod for adjusting the angle is provided at the bottom end of the hinge ball.

6. The welding fixture for sensor processing according to claim 5, characterized in that, The fixing assembly includes a support ring fixedly installed at the bottom end of the connecting rod for supporting the welding torch. A clamping ring for holding the welding torch is provided inside the support ring. A round rod for moving within the support ring is fixedly installed at the end of the clamping ring near the support ring. A limiting plate for preventing the round rod from moving out of the support ring is fixedly installed at the end of the round rod away from the clamping ring. A spring for driving the clamping ring to clamp the welding torch is fixedly installed at the end of the limiting plate away from the round rod.

7. The welding fixture for sensor processing according to claim 2, characterized in that, The rotating assembly includes a rotating shaft movably connected to the support plate for rotation. The rotating shaft has a placement cavity for placing the connecting assembly. The shaft body has a locking hole for locking the second drive assembly. The shaft body has four placement slots, and the placement slots are located to the left of the locking hole. The left end of the rotating shaft is provided with a cover plate for sealing the placement cavity.

8. The welding fixture for sensor processing according to claim 7, characterized in that, The second drive assembly includes a first drive shaft movably connected to the rotating shaft for rotation. A handwheel for driving the first drive shaft to rotate is fixedly installed at the top end of the first drive shaft. A locking rod for locking the handwheel is provided on the wheel body for threaded connection with a locking hole. A first bevel gear for driving the connecting assembly to rotate is fixedly installed at the bottom end of the first drive shaft.

9. The welding fixture for sensor processing according to claim 8, characterized in that, The connecting assembly includes a second drive shaft disposed within the placement cavity for rotation, a second bevel gear fixedly mounted on the shaft for meshing with the first bevel gear, and a third bevel gear fixedly mounted on the shaft for driving four clamping assemblies to clamp and fix the sensor mounted on the rotating shaft.

10. The welding fixture for sensor processing according to claim 9, characterized in that, The clamping assembly includes a fixed plate fixedly installed on the right end of the cover plate. A second threaded rod for rotation is movably connected to the plate body of the fixed plate. A fourth bevel gear for meshing with a third bevel gear is fixedly installed on the shaft of the second threaded rod. A movable plate for vertical movement is threadedly connected to the shaft of the second threaded rod. Two guide rods are fixedly installed on the plate body of the movable plate. A clamping plate for clamping and fixing the sensor is fixedly installed at the end of the guide rod away from the movable plate. A slide rod for penetrating the movable plate is fixedly installed on the plate body of the fixed plate.

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