A welding device and method for tantalum steel clad plate

Abstract

This invention relates to the field of tantalum steel composite plate processing technology, specifically to a welding device and welding method for tantalum steel composite plates, comprising: a frame; a welding table disposed on the frame; two limiting plates disposed on both sides of the welding table in the width direction; two positioning mechanisms disposed on both sides of the welding table in the length direction; and an opposing mechanism disposed at the bottom of the welding table. Each positioning mechanism includes a push plate, a top positioning plate, and a linkage mechanism. The push plate is used to push the tantalum steel composite plate to be welded, and the linkage mechanism is connected to the push plate and the top positioning plate in a transmission manner. A welding robot is disposed on the frame, simultaneously performing upper clamping while achieving lateral clamping, fundamentally avoiding the problem of gaps and openings in the welding surface caused by the plate warping due to stress, ensuring a tight fit between the welding surfaces of the two composite plates, and improving welding quality.

Description

Technical Field

[0001] This invention relates to the field of tantalum steel composite plate processing technology, specifically to a welding device and welding method for tantalum steel composite plates. Background Technology

[0002] During the welding process of tantalum steel composite plates, there are common problems such as poor plate positioning accuracy, easy displacement and warping, and difficulty in controlling the welding gap. These problems directly affect the welding quality and the structural strength of the plate, and are fundamental technical problems that urgently need to be solved in this field.

[0003] Existing welding positioning devices, such as the Chinese Patent Publication No. CN215146189U which discloses a welding device for stainless steel composite plates, include a device body, and a lifting device and a clamping device disposed on the device body; the lifting device includes a drive assembly, a return spring, and a placement plate; the top of the return spring is fixedly connected to the bottom of the placement plate; the side wall of the placement plate is movably connected to the drive assembly; the present invention, through the cooperative use of the drive assembly, the moving plate, the operating box, the clamping spring, and the clamping column, achieves automatic clamping of the stainless steel composite plate by the operation of the drive assembly during welding. When the bottom of the clamping column contacts the stainless steel composite plate, the further downward movement of the moving plate will cause the clamping column to slide upward along the inner side wall of the slide groove, so that the clamping spring is in a compressed state. The compressed clamping spring and the clamping column achieve automatic clamping of the stainless steel composite plate, preventing welding errors caused by the movement of the stainless steel composite plate during welding, improving welding efficiency, and ensuring welding accuracy.

[0004] However, when two plates are brought together, the upper part of the plates tends to warp upwards and open up, resulting in gaps between the surfaces of the two composite plates to be welded, making it difficult to achieve a tight fit. Existing welding positioning devices mostly use lateral clamping mechanisms to bring the plates together. Although this can make the end faces of the plates contact each other to a certain extent, it lacks an upper pressing structure that is linked to the lateral clamping. It cannot automatically suppress the upward warping of the plates while clamping, so it is still difficult to avoid gaps on the welding surfaces and the positioning effect is not good. Summary of the Invention

[0005] To address the aforementioned issues, a welding device and method for tantalum-steel composite plates are provided. An opposing mechanism drives two side push plates to push the tantalum-steel composite plates towards each other, bringing the weldable ends of the two plates closer together. Simultaneously, the pressure action of the push plates triggers a linkage mechanism, automatically driving the top positioning plate to flip downwards and press against the upper surface of the tantalum-steel composite plate. This simultaneous lateral clamping and upper clamping fundamentally avoids the problem of gaps and openings in the welded surfaces caused by the plates warping upwards under pressure, ensuring a tight fit between the two composite plates and improving welding quality.

[0006] To address the problems of existing technologies, the present invention provides a welding apparatus for tantalum-steel composite plates, comprising: frame; A welding table, set on the frame, is used to place the tantalum steel composite plate to be welded; Two limiting plates are respectively set on both sides of the welding table in the width direction to align the two tantalum steel composite plates to be welded; Two positioning mechanisms are respectively located on both sides of the welding table along its length. An opposing mechanism is located at the bottom of the welding table and is connected to the two positioning mechanisms for driving the two positioning mechanisms to move towards each other; The positioning mechanism includes a push plate, a top positioning plate, and a linkage mechanism. The push plate is used to push the tantalum steel composite plate to be welded. The linkage mechanism is connected to the push plate and the top positioning plate respectively. When the two push plates move towards each other continuously, the welding points of the two tantalum steel composite plates to be welded are aligned and attached. At the same time, the linkage mechanism drives the top positioning plate to move downward and positions the upper surface of the tantalum steel composite plate. A welding robot, mounted on the frame, is used to weld the joints of two tantalum steel composite plates.

[0007] Preferably, the welding table is composed of multiple long strips of steel arranged side by side, each of the long strips of steel is fixedly mounted on the frame, and a gap is reserved between two adjacent long strips of steel arranged along the length of the frame.

[0008] Preferably, the linkage mechanism includes a vertical plate, multiple push rods, two first shaft seats, a flipping rod, multiple flipping brackets, multiple gears, and racks corresponding one-to-one with the number of gears; The vertical plate is vertically arranged along the width direction of the welding table, and its bottom is connected to the opposing mechanism for transmission. The push plate is located on the side of the vertical plate close to the tantalum steel composite plate to be welded. Multiple push rods are equidistantly arranged along the length of the push plate and all horizontally penetrate the vertical plate. The vertical plate is provided with a first guide sleeve for each push rod to move. A first spring is sleeved on the outside of each push rod, and the two ends of the first spring abut against the side wall of the vertical plate and the push plate, respectively. Two first bearing seats are symmetrically arranged on the top two sides of the vertical plate, and the flipping rod is rotatably arranged between the two first bearing seats; Multiple flipping brackets are equidistantly arranged along the axial direction of the flipping rod, with one end of each bracket away from the flipping rod connected to the top positioning plate; Multiple gears are equidistantly sleeved on the outside of the flipping rod along its axial direction. Each rack is horizontally arranged and meshes with the corresponding gear. The end of the rack away from the top positioning plate is connected to the end of each push rod through a connecting bracket.

[0009] Preferably, the top positioning plate includes a fixing plate and a pressure plate; The pressure plate is used to contact the tantalum steel composite plate to be welded, and the fixing plate is connected to each of the flipping brackets; The pressure plate is provided with a plurality of buffer rods on the side facing the fixed plate, and the fixed plate is provided with a second guide sleeve for each buffer rod to pass through; The buffer rod is fitted with a second spring, the two ends of which abut against the fixed plate and the pressure plate respectively. The end of the buffer rod away from the pressure plate is provided with an anti-disengagement sleeve, which is used to prevent the buffer rod from detaching from the second guide sleeve.

[0010] Preferably, each of the flip brackets has a universal ball embedded at the end away from the flip rod, and the fixed plate has a ball sleeve correspondingly embedded on the side facing the flip bracket. The ball head of the universal ball can be freely flipped and fitted into the ball sleeve. The flip bracket is connected to the fixed plate through the cooperation of the universal ball and the ball sleeve.

[0011] Preferably, a plurality of pressure sensors are embedded in the side of the pressure plate facing the tantalum steel composite plate to be welded. The pressure sensors are arranged at equal intervals along the length of the pressure plate to detect the actual pressing pressure of the pressure plate on the tantalum steel composite plate.

[0012] Preferably, the opposing mechanism includes a dual-axis motor, two lead screws, two second shaft seats, two lead screw sliders, a moving plate, a branch plate, a transverse guide rod, and multiple guide wheels; The dual-axis motor is located at the bottom of the welding table. The two lead screws are respectively connected to the two output shafts of the dual-axis motor. The two second shaft seats are symmetrically located on both sides of the bottom of the welding table along its length. The ends of the two lead screws are respectively connected to the corresponding second shaft seats, and the threads of the two lead screws are opposite. The two lead screw sliders are respectively screwed onto the corresponding lead screws, and the movable plate is sleeved on the outside of the two lead screw sliders; The branch plate is fixed to the top of the movable plate, and the branch plate passes upward through the gap between the adjacent long strip steel and is connected to the bottom of the corresponding vertical plate; The transverse guide rod passes through the middle section of each of the branch plates. The multiple guide wheels correspond one-to-one with each of the long strip steel and are sleeved on the outside of the transverse guide rod. Each of the long strip steel has a guide groove for sliding of the corresponding guide wheel.

[0013] Preferably, a protective cover is fixed to the side of the fixing plate away from the pressure plate.

[0014] Preferably, vertical plates are fixed on both sides of the frame along its width direction, and the two vertical plates are arranged in a one-to-one correspondence with the two limiting plates; An adjusting screw is fixedly provided on the side of the limiting plate facing the vertical plate. An adjusting nut adapted to the adjusting screw is screwed onto the vertical plate. A locking nut for locking is also screwed onto the adjusting screw. An adjusting handle is fixedly provided at the end of the adjusting screw away from the limiting plate. Limiting light rods are fixed on both sides of the limiting plate, and guide openings are correspondingly provided on the vertical plate for the limiting light rods to slide through.

[0015] The present invention also provides a welding method for a welding apparatus for tantalum steel composite plates, comprising the following steps: S1. Place the two tantalum steel composite plates to be welded on the welding table of the machine frame, and adjust the limiting plates on both sides of the welding table in the width direction to align the two composite plates in the width direction. S2. Activate the opposing mechanism at the bottom of the welding table to drive the positioning mechanisms on both sides of the welding table along the length direction to move towards each other. The push plate of the positioning mechanism pushes the two composite plates closer to each other, so that the welding points of the two composite plates are aligned and fit together. S3. While the push plate pushes the composite panel, the top positioning plate is driven to flip downward through the linkage mechanism of the positioning mechanism to press and position the upper surface of the composite panel. S4. Start the welding robot on the frame and weld the two composite plates that have been aligned and attached. S5. After welding is completed, control the opposing mechanism to drive the positioning mechanism to move in opposite directions, and the linkage mechanism drives the top positioning plate to flip upward and reset, releasing the positioning of the composite plate and removing the welded composite plate.

[0016] The advantages of this invention compared to the prior art are: 1. This invention uses a counter-rotating mechanism to push the tantalum steel composite plates on both sides towards each other, bringing the weldable ends of the two tantalum steel composite plates closer together. At the same time, the pressure action of the push plates triggers a linkage mechanism, automatically driving the top positioning plate to flip downwards and press the upper surface of the tantalum steel composite plate. This achieves lateral clamping and simultaneous upper clamping, fundamentally avoiding the problem of gaps and openings in the welding surface caused by the plates warping upwards under pressure. This ensures that the welding surfaces of the two composite plates are tightly fitted, improving the welding quality.

[0017] 2. This invention uses the transmission and cooperation of push rod, rack and pinion, and gear to convert the horizontal displacement of the push plate into the flipping and pressing action of the top positioning plate, realizing the pure mechanical linkage of lateral clamping and upper pressing. No additional driving components are required. The action response is timely and the positioning synchronization is high, which solves the problem of existing devices requiring step-by-step operation and asynchronous positioning. Attached Figure Description

[0018] Figure 1 This is a three-dimensional structural schematic diagram of the welding device for the tantalum steel composite plate of the present invention.

[0019] Figure 2 This is a structural cross-sectional view of the welding device for the tantalum steel composite plate of the present invention.

[0020] Figure 3 yes Figure 2 Enlarged view of point A in the middle.

[0021] Figure 4 This is a partial three-dimensional structural schematic diagram of the welding device for the tantalum steel composite plate of the present invention.

[0022] Figure 5 This describes the state of the positioning mechanism of the welding device for the tantalum steel composite plate of the present invention. Figure 1 .

[0023] Figure 6 yes Figure 5 Enlarged view of section B in the middle.

[0024] Figure 7 This is a partial three-dimensional structural diagram of the linkage mechanism of the welding device for the tantalum steel composite plate of the present invention.

[0025] Figure 8 This is a partial three-dimensional structural diagram of the top positioning plate of the welding device for the tantalum steel composite plate of the present invention.

[0026] Figure 9 This is a partial three-dimensional structural diagram of the positioning mechanism of the welding device for the tantalum steel composite plate of the present invention. Figure 1 .

[0027] Figure 10 This is a bottom view of the welding device for the tantalum steel composite plate of the present invention.

[0028] Figure 11 This is a partial three-dimensional structural diagram of the positioning mechanism of the welding device for the tantalum steel composite plate of the present invention. Figure 2 .

[0029] Figure 12 This describes the state of the positioning mechanism of the welding device for the tantalum steel composite plate of the present invention. Figure 2 .

[0030] The following are labeled in the diagram: 1. Frame; 2. Welding table; 21. Long strip steel; 3. Limiting plate; 31. Vertical plate; 32. Adjusting screw; 33. Adjusting nut; 34. Locking nut; 35. Adjusting handle; 36. Limiting rod; 4. Positioning mechanism; 41. Push plate; 42. Top positioning plate; 421. Fixing plate; 4211. Second guide sleeve; 422. Pressure plate; 4221. Buffer rod; 4222. Second spring; 4223. Anti-disengagement sleeve; 4224. Pressure sensor; 43. Linkage mechanism; 431. Vertical plate 432. Push rod; 4321. First spring; 433. First bearing seat; 434. Flipping rod; 4341. Universal ball; 4342. Ball sleeve; 435. Flipping bracket; 436. Gear; 437. Rack; 438. Connecting frame; 439. Guide column; 5. Opposing mechanism; 51. Dual-axis motor; 52. Lead screw; 53. Second bearing seat; 54. Lead screw slider; 55. Moving plate; 56. Branch plate; 57. Lateral guide rod; 58. Guide wheel; 581. Guide groove; 6. Welding robot; 7. Protective cover. Detailed Implementation

[0031] To further understand the features, technical means, and specific objectives and functions achieved by the present invention, the present invention will be described in further detail below with reference to the accompanying drawings and specific embodiments.

[0032] Reference Figures 1 to 3 As shown: A welding apparatus for tantalum-steel composite plates, comprising: Rack 1; Welding table 2, set on the frame 1, is used to place the tantalum steel composite plate to be welded; Two limiting plates 3 are respectively set on both sides of the welding table 2 in the width direction to align the two tantalum steel composite plates to be welded; Two positioning mechanisms 4 are respectively disposed on both sides of the welding table 2 along its length; The opposing mechanism 5 is located at the bottom of the welding table 2 and is connected to the two positioning mechanisms 4 for driving the two positioning mechanisms 4 to move towards each other; The positioning mechanism 4 includes a push plate 41, a top positioning plate 42, and a linkage mechanism 43. The push plate 41 is used to push the tantalum steel composite plate to be welded. The linkage mechanism 43 is connected to the push plate 41 and the top positioning plate 42 respectively. When the two push plates 41 move towards each other continuously, the welding points of the two tantalum steel composite plates to be welded are aligned and attached. At the same time, the linkage mechanism 43 drives the top positioning plate 42 to move downward and positions the upper surface of the tantalum steel composite plate. Welding robot 6, mounted on the frame 1, is used to weld the joints of two tantalum steel composite plates.

[0033] When the welding device for tantalum steel composite plates is in operation, two tantalum steel composite plates to be welded are placed on the welding table 2 of the frame 1. The limiting plates 3 on both sides of the welding table 2 in the width direction are used to limit the two composite plates laterally, so as to achieve the initial alignment of the two composite plates in the width direction and avoid the composite plates from shifting laterally during the subsequent positioning process.

[0034] The opposing mechanism 5 at the bottom of the welding table 2 is activated. The opposing mechanism 5 drives the positioning mechanisms 4 on both sides of the welding table 2 to move towards each other along the length direction. The push plate 41 of the positioning mechanism 4 moves synchronously towards the composite plate and abuts against the composite plate. As the two push plates 41 continue to advance towards each other, they push the two composite plates closer to each other along the length direction of the welding table 2, so that the welding joints of the two composite plates are precisely aligned and tightly fitted.

[0035] During the process of the push plate 41 pushing the composite plate, the linkage mechanism 43 of the positioning mechanism 4 moves synchronously with the movement of the push plate 41. The linkage mechanism 43 drives the top positioning plate 42 to move downward until the top positioning plate 42 is pressed against the upper surface of the composite plate, thus completing the vertical positioning of the composite plate and realizing the multi-directional fixation of the composite plate on the welding table 2, preventing the composite plate from shifting during the welding process.

[0036] After the composite plates are aligned, bonded and positioned, the welding robot 6 set on the frame 1 is started. The welding robot 6 performs automated welding on the welded joints of the two composite plates that have been aligned and bonded, ensuring welding accuracy and welding quality.

[0037] Reference Figure 1 and Figure 4 As shown: The welding table 2 is composed of multiple long strips of steel 21 arranged side by side. Each of the long strips of steel 21 is fixedly installed on the frame 1, and a gap is reserved between two adjacent long strips of steel 21 arranged along the length of the frame 1.

[0038] The rigid support of multiple long steel strips 21 provides a stable and solid load-bearing foundation for the composite plate to be welded, ensuring the horizontality of the composite plate after placement and preventing misalignment of the composite plate due to unevenness of the welding table 2 surface. On the other hand, the gap between adjacent steel strips can form a chip and slag removal channel, allowing welding slag and iron filings generated during welding to fall directly from the gap, preventing welding slag from accumulating between the surface of the welding table 2 and the bonding surface of the composite plate, preventing welding slag from lifting the composite plate and causing gaps in the welding surface, and also preventing welding slag from sticking to the lower surface of the composite plate and affecting the welding quality. In addition, the gap can also help dissipate the heat generated during welding, reducing the possibility of deformation of the welding table 2 due to local high temperature, and ensuring the structural stability of the welding table 2 and the positioning accuracy of subsequent welding.

[0039] Reference Figure 3 , Figure 5 , Figure 7 , Figure 8and Figure 12 As shown: The linkage mechanism 43 includes a vertical plate 431, multiple push rods 432, two first shaft seats 433, a flipping rod 434, multiple flipping brackets 435, multiple gears 436, and racks 437 corresponding one-to-one with the number of gears 436. The vertical plate 431 is vertically arranged along the width direction of the welding table 2, and its bottom is connected to the opposing mechanism 5. The push plate 41 is located on the side of the vertical plate 431 close to the tantalum steel composite plate to be welded. Multiple push rods 432 are equidistantly arranged along the length of the push plate 41 and all horizontally penetrate the vertical plate 431. The vertical plate 431 is provided with a first guide sleeve for each push rod 432 to move. A first spring 4321 is sleeved on the outside of each push rod 432. The two ends of the first spring 4321 abut against the side wall of the vertical plate 431 and the push plate 41, respectively. Two first bearing seats 433 are symmetrically arranged on the top sides of the vertical plate 431, and the flipping rod 434 is rotatably arranged between the two first bearing seats 433; Multiple flip brackets 435 are equidistantly arranged along the axial direction of the flip rod 434, and one end of each bracket away from the flip rod 434 is connected to the top positioning plate 42. Multiple gears 436 are equidistantly sleeved on the outside of the flipping rod 434 along the axial direction. Each rack 437 is horizontally arranged and meshes with the corresponding gear 436. The end of the rack 437 away from the top positioning plate 42 is connected to the end of each push rod 432 through the connecting bracket 438.

[0040] When the opposing mechanism 5 drives the vertical plate 431 to move towards the welding table 2, the vertical plate 431 drives the push plate 41 to approach the tantalum steel composite plate to be welded simultaneously. After the push plate 41 contacts the surface of the composite plate, the vertical plate 431 continues to move forward with the opposing mechanism 5. The push plate 41 is no longer moving forward due to the reaction force of the composite plate. At this time, the push rod 432 is displaced relative to the vertical plate 431. The first spring 4321 outside the push rod 432 is compressed and forms a buffer to prevent the push plate 41 from making hard contact and causing squeezing damage to the composite plate.

[0041] As the push rod 432 moves relative to the vertical plate 431, it drives the connecting frame 438 at its end to move synchronously. The connecting frame 438 pulls the rack 437 connected to it to make horizontal linear motion. The rack 437 meshes with the gear 436 outside the flipping rod 434. The horizontal movement of the rack 437 is converted into the rotational motion of the gear 436, which in turn drives the flipping rod 434 to rotate around the axis of the two first bearings 433.

[0042] When the flipping rod 434 rotates, it drives multiple flipping brackets 435, which are equidistantly arranged along its axis, to flip downwards synchronously. The flipping brackets 435 pull the top positioning plate 42 to flip along with it until the top positioning plate 42 is attached to the upper surface of the tantalum steel composite plate, thus completing the vertical positioning of the composite plate. This achieves the linkage action of the push plate 41 pushing the composite plate horizontally and attaching it, and the top positioning plate 42 pressing it vertically, ensuring the positioning stability of the composite plate before welding.

[0043] The structure in which push rods 432 are equidistantly arranged along the length of push plate 41, and flip brackets 435 and gears 436 are equidistantly arranged along the axis of flip rod 434, ensures that the driving force of rack 437, the rotational force of flip rod 434 and the clamping force of top positioning plate 42 are evenly distributed, avoiding warping and misalignment caused by uneven local stress on composite plate, and further improving positioning accuracy.

[0044] On the side of the vertical plate 431 near the connecting frame 438, a guide post 439 is fixedly provided for each connecting frame 438. Each connecting frame 438 has a guide opening for the corresponding guide post 439 to slide through. The guide post 439 extends along the moving direction of the rack 437 and plays a guiding and limiting role in the horizontal movement of the rack 437, ensuring the straightness of the rack 437 during the movement process and avoiding the rack 437 from deviating and affecting the meshing transmission accuracy with the gear 436.

[0045] Reference Figure 3 , Figure 6 and Figure 8 As shown: The top positioning plate 42 includes a fixing plate 421 and a pressure plate 422; The pressure plate 422 is used to contact the tantalum steel composite plate to be welded, and the fixing plate 421 is connected to each of the flipping brackets 435. The pressure plate 422 is provided with a plurality of buffer rods 4221 on the side facing the fixed plate 421, and the fixed plate 421 is provided with a second guide sleeve 4211 for each of the buffer rods 4221 to pass through. The buffer rod 4221 is fitted with a second spring 4222. The two ends of the second spring 4222 abut against the fixed plate 421 and the pressure plate 422 respectively. The end of the buffer rod 4221 away from the pressure plate 422 is provided with an anti-detachment sleeve 4223. The anti-detachment sleeve 4223 is used to prevent the buffer rod 4221 from detaching from the second guide sleeve 4211.

[0046] When the flipping rod 434 drives the flipping bracket 435 to drive the fixed plate 421 to flip downward, the fixed plate 421 drives the buffer rod 4221 to move downward synchronously through the second guide sleeve 4211, thereby pushing the pressure plate 422 closer to the upper surface of the composite plate until the pressure plate 422 is in contact with the surface of the composite plate; if the fixed plate 421 continues to move downward slightly with the flipping bracket 435, the buffer rod 4221 will slide relative to the second guide sleeve 4211 on the fixed plate 421, forming a vertical buffer stroke, avoiding excessive pressing force of the top positioning plate 42 flipping downward and damaging the surface of the composite plate, while adapting to the slight flatness error of the surface of the composite plate, ensuring the sealing of the pressure plate 422 and the upper surface of the composite plate.

[0047] Reference Figure 6 As shown: Each of the flip brackets 435 has a universal ball 4341 embedded at the end away from the flip rod 434, and a ball sleeve 4342 is correspondingly inlaid on the side of the fixing plate 421 facing the flip bracket 435. The ball head of the universal ball 4341 can be freely flipped and fitted into the ball sleeve 4342. The flip bracket 435 is connected to the fixing plate 421 through the cooperation of the universal ball 4341 and the ball sleeve 4342.

[0048] When the flipping bracket 435 drives the fixed plate 421 to flip downward, the fixed plate 421 drives the buffer rod 4221 to move downward synchronously through the second guide sleeve 4211. The buffer rod 4221 pushes the pressure plate 422 closer to the upper surface of the composite plate until the pressure plate 422 and the surface of the composite plate are initially attached, completing the first step of positioning contact.

[0049] If the fixed plate 421 continues to move slightly downward with the flipping bracket 435, the pressure plate 422 remains stationary due to the reaction force of the composite plate. At this time, the buffer rod 4221 will slide relative to the second guide sleeve 4211. At the same time, the second spring 4222 sleeved outside the buffer rod 4221 is compressed and contracted by the fixed plate 421 and the pressure plate 422, forming an elastic buffer stroke. On the one hand, it offsets the excessive clamping force caused by the excessive flipping of the flipping rod 434, and uses the elastic deformation of the second spring 4222 to achieve pressure buffering, effectively preventing damage to the surface of the composite plate or causing warping of the composite plate. On the other hand, it can adapt to the slight flatness error of the surface of the composite plate, allowing the pressure plate 422 to fully fit with the upper surface of the composite plate under the elastic force of the second spring 4222, avoiding positioning failure caused by local gaps.

[0050] The anti-disengagement sleeve 4223 at the end of the buffer rod 4221 can form a hard limit on the sliding stroke of the buffer rod 4221, preventing the buffer rod 4221 from disengaging from the second guide sleeve 4211 due to excessive sliding.

[0051] Reference Figure 9As shown: Multiple pressure sensors 4224 are embedded on the side of the pressure plate 422 facing the tantalum steel composite plate to be welded. Each pressure sensor 4224 is arranged at equal intervals along the length of the pressure plate 422 and is used to detect the actual pressing pressure of the pressure plate 422 on the tantalum steel composite plate.

[0052] When the flipping bracket 435 drives the fixed plate 421 to flip downwards, and the pressure plate 422 gradually adheres to the upper surface of the tantalum steel composite plate, the reaction force generated by the tantalum steel composite plate on the pressure plate 422 is transmitted to each pressure sensor 4224. The sensor converts the pressure signal into an electrical signal in real time and feeds it back to the device control system to realize dynamic monitoring of the clamping pressure. If the pressure sensor 4224 at a certain position detects that the pressure value is too high, the control system can adjust the advancing stroke of the opposing mechanism 5 to reduce the flipping angle of the flipping rod 434, so as to avoid excessive local clamping force damaging the surface of the composite plate or causing the composite plate to warp. If the pressure value is detected to be too low or the pressure distribution is uneven, the stroke of the opposing mechanism 5 can be increased to ensure that the clamping force of the pressure plate 422 on the tantalum steel composite plate at each position is up to standard and uniform, ensuring the stability of the vertical positioning of the tantalum steel composite plate and preventing displacement due to insufficient clamping force during welding.

[0053] Reference Figures 9 to 12 As shown: The opposing mechanism 5 includes a dual-axis motor 51, two lead screws 52, two second shaft seats 53, two lead screw sliders 54, a moving plate 55, a branch plate 56, a transverse guide rod 57, and multiple guide wheels 58. The dual-axis motor 51 is located at the bottom of the welding table 2. The two lead screws 52 are respectively connected to the two output shafts of the dual-axis motor 51. The two second shaft seats 53 are symmetrically arranged on both sides of the bottom of the welding table 2 along its length. The ends of the two lead screws 52 are respectively shaft-connected to the corresponding second shaft seats 53, and the threads of the two lead screws 52 are opposite. The two lead screw sliders 54 are respectively screwed onto the corresponding lead screws 52, and the movable plate 55 is sleeved on the outside of the two lead screw sliders 54; The branch plate 56 is fixed to the top of the movable plate 55, and the branch plate 56 passes upward through the gap between the adjacent long strip steel 21 and is connected to the bottom of the corresponding vertical plate 431. The transverse guide rod 57 passes through the middle section of each of the branch plates 56. The plurality of guide wheels 58 correspond one-to-one with each of the long strip steel 21 and are sleeved on the outside of the transverse guide rod 57. Each of the long strip steel 21 is provided with a guide groove 581 for sliding corresponding to the guide wheel 58.

[0054] During operation, after the dual-axis motor 51 starts, it synchronously drives the lead screws 52 at both ends to rotate. Since the threads of the two lead screws 52 turn in opposite directions, and the lead screw sliders 54 are screwed to the lead screws 52 and fixed to the moving plate 55, the rotational motion of the lead screws 52 is converted into the synchronous linear motion of the two lead screw sliders 54 along the axis of the lead screws 52, which in turn drives the moving plate 55 and the branch plate 56 at the top to move synchronously.

[0055] The branch plate 56 at the top of the moving plate 55 passes through the gap between the long strip steel 21 of the welding table 2 and is directly connected to the bottom of the vertical plate 431, realizing the efficient transmission of driving force from the bottom of the welding table 2 to the positioning mechanism 4. At the same time, the gap of the welding table 2 is used to avoid the movement of the branch plate 56, making the structure of the device more compact and eliminating the need for additional space for movement.

[0056] The transverse guide rods 57 passing through the middle section of each branch plate 56 form an overall transverse limit, which works in conjunction with the guide wheels 58 sleeved on the guide rods and corresponding one-to-one with the long strip steel 21. The guide wheels 58 are embedded in the guide grooves 581 of the long strip steel 21 and slide as the branch plate 56 moves, forming a double guide limit: first, the transverse guide rods 57 limit the relative position of each branch plate 56 to prevent the branch plate 56 from swaying when moving; second, the sliding cooperation between the guide wheels 58 and the guide grooves 581 provides precise guidance for the vertical movement of the branch plate 56, while converting the sliding friction between the branch plate 56 and the long strip steel 21 into rolling friction, reducing the resistance to movement and avoiding jamming.

[0057] Reference Figure 11 and Figure 12 As shown: A protective cover 7 is fixed on the side of the fixing plate 421 away from the pressure plate 422.

[0058] When the tantalum steel composite plate is positioned by the pressure plate 422, the protective cover 7 is placed over the outside of the gear 436 and rack 437 to isolate the gear 436 and rack 437 from the external working environment. This prevents the welding slag, iron filings and other debris generated during the welding operation from getting stuck in the meshing gap between the gear 436 and rack 437 or from adhering to the tooth surface and causing transmission jamming.

[0059] Reference Figure 4 As shown: Vertical plates 31 are fixed on both sides of the frame 1 along its width direction, and the two vertical plates 31 are arranged in a one-to-one correspondence with the two limiting plates 3; An adjusting screw 32 is fixedly provided on the side of the limiting plate 3 facing the vertical plate 31. An adjusting nut 33 adapted to the adjusting screw 32 is screwed onto the vertical plate 31. A locking nut 34 for locking is also screwed onto the adjusting screw 32. An adjusting handle 35 is fixedly provided at the end of the adjusting screw 32 away from the limiting plate 3. Both sides of the limiting plate 3 are fixed with limiting light rods 36, and the vertical plate 31 is provided with guide openings for the limiting light rods 36 to slide through.

[0060] When the width of the composite plate to be welded changes, loosen the locking nut 34 on the adjusting screw 32, and turn the adjusting handle 35 to drive the adjusting screw 32 to rotate. By utilizing the threaded engagement between the adjusting screw 32 and the adjusting nut 33 on the vertical plate 31, the rotational motion of the adjusting screw 32 is converted into the horizontal linear movement of the limiting plate 3 along the width direction of the frame 1, realizing the independent position adjustment of a single limiting plate 3. The two limiting plates 3 can be used together to adapt to the lateral limiting requirements of composite plates of different widths, improving the versatility of the device.

[0061] After the limiting plate 3 is adjusted to the preset position that matches the width of the composite plate, tighten the locking nut 34 on the adjusting screw 32 so that the locking nut 34 is in close contact with the outer wall of the vertical plate 31. The threaded locking force counteracts the reverse rotation tendency of the adjusting screw 32, thereby achieving double fixation of the adjusting position of the limiting plate 3.

[0062] Reference Figures 1 to 12 The following is shown: A welding method for a welding apparatus for tantalum steel composite plates, comprising the following steps: S1. Place the two tantalum steel composite plates to be welded on the welding table 2 of the frame 1, and adjust the limiting plates 3 on both sides of the welding table 2 in the width direction so that the two composite plates are aligned in the width direction. S2. Start the opposing mechanism 5 at the bottom of the welding table 2, drive the positioning mechanisms 4 on both sides of the welding table 2 to move towards each other in the length direction, and push the push plate 41 of the positioning mechanism 4 to push the two composite plates closer to each other, so that the welding parts of the two composite plates are aligned and fit together. S3. While the push plate 41 pushes the composite plate, the top positioning plate 42 is driven to flip downward through the linkage mechanism 43 of the positioning mechanism 4, pressing and positioning the upper surface of the composite plate. S4. Start the welding robot 6 on the frame 1, and the welding robot 6 welds the weld joint where the two composite plates have been aligned and attached. S5. After welding is completed, control the opposing mechanism 5 to drive the positioning mechanism 4 to move in opposite directions, and the linkage mechanism 43 drives the top positioning plate 42 to flip upward and reset, releasing the positioning of the composite plate and removing the welded composite plate.

[0063] The above embodiments only illustrate one or more implementations of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present invention. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of the present invention should be determined by the appended claims.

Claims

1. A welding device for tantalum-steel composite plates, characterized in that, include: Rack (1); Welding table (2), set on the frame (1), is used to place the tantalum steel composite plate to be welded; Two limiting plates (3) are respectively set on both sides of the welding table (2) in the width direction to align the two tantalum steel composite plates to be welded; Two positioning mechanisms (4) are respectively located on both sides of the welding table (2) along its length. The opposing mechanism (5) is located at the bottom of the welding table (2) and is connected to the two positioning mechanisms (4) for driving the two positioning mechanisms (4) to move towards each other; The positioning mechanism (4) includes a push plate (41), a top positioning plate (42), and a linkage mechanism (43). The push plate (41) is used to push the tantalum steel composite plate to be welded. The linkage mechanism (43) is connected to the push plate (41) and the top positioning plate (42) respectively. When the two push plates (41) move towards each other continuously, the welding points of the two tantalum steel composite plates to be welded are aligned and attached. At the same time, the linkage mechanism (43) drives the top positioning plate (42) to move downward and positions the upper surface of the tantalum steel composite plate. A welding robot (6) is mounted on the frame (1) and is used to weld the joints of two tantalum steel composite plates.

2. The welding apparatus for tantalum-steel composite plates according to claim 1, characterized in that, The welding table (2) is composed of multiple long strip steels (21) arranged side by side. Each of the long strip steels (21) is fixedly installed on the frame (1). A gap is reserved between two adjacent long strip steels (21) arranged along the length of the frame (1).

3. The welding apparatus for tantalum-steel composite plates according to claim 2, characterized in that, The linkage mechanism (43) includes a vertical plate (431), multiple push rods (432), two first shaft seats (433), a flipping rod (434), multiple flipping brackets (435), multiple gears (436), and racks (437) that correspond one-to-one with the number of gears (436). The vertical plate (431) is vertically arranged along the width direction of the welding table (2), and its bottom is connected to the opposing mechanism (5) for transmission. The push plate (41) is located on the side of the vertical plate (431) close to the tantalum steel composite plate to be welded. Multiple push rods (432) are equidistantly arranged along the length direction of the push plate (41) and all horizontally penetrate the vertical plate (431). The vertical plate (431) is provided with a first guide sleeve for each push rod (432) to move. A first spring (4321) is sleeved on the outside of each push rod (432). The two ends of the first spring (4321) abut against the side walls of the vertical plate (431) and the push plate (41) respectively. Two first bearing seats (433) are symmetrically arranged on the top sides of the vertical plate (431), and the flipping rod (434) is rotatably arranged between the two first bearing seats (433); Multiple flip brackets (435) are equidistantly arranged along the axial direction of the flip rod (434), and one end of them away from the flip rod (434) is connected to the top positioning plate (42); Multiple gears (436) are equidistantly sleeved on the outside of the flipping rod (434) along the axial direction. Each rack (437) is horizontally arranged and meshes with the corresponding gear (436). The end of the rack (437) away from the top positioning plate (42) is connected to the end of each push rod (432) through a connecting frame (438).

4. The welding apparatus for tantalum steel composite plates according to claim 3, characterized in that, The top positioning plate (42) includes a fixing plate (421) and a pressure plate (422). The pressure plate (422) is used to contact the tantalum steel composite plate to be welded, and the fixing plate (421) is connected to each of the flipping brackets (435); The pressure plate (422) is provided with a plurality of buffer rods (4221) on the side facing the fixed plate (421), and the fixed plate (421) is provided with a second guide sleeve (4211) for each buffer rod (4221) to pass through. The buffer rod (4221) is fitted with a second spring (4222), the two ends of which abut against the fixed plate (421) and the pressure plate (422) respectively. The end of the buffer rod (4221) away from the pressure plate (422) is provided with an anti-detachment sleeve (4223), which is used to prevent the buffer rod (4221) from detaching from the second guide sleeve (4211).

5. The welding apparatus for tantalum steel composite plates according to claim 4, characterized in that, Each of the flip brackets (435) has a universal ball (4341) embedded at the end away from the flip rod (434), and a ball sleeve (4342) is correspondingly inlaid on the side of the fixing plate (421) facing the flip bracket (435). The ball head of the universal ball (4341) can be freely flipped and fitted into the ball sleeve (4342). The flip bracket (435) is connected to the fixing plate (421) through the cooperation of the universal ball (4341) and the ball sleeve (4342).

6. The welding apparatus for the tantalum steel composite plate according to claim 4, characterized in that, Multiple pressure sensors (4224) are embedded on the side of the pressure plate (422) facing the tantalum steel composite plate to be welded. Each pressure sensor (4224) is arranged at equal intervals along the length of the pressure plate (422) to detect the actual pressing pressure of the pressure plate (422) on the tantalum steel composite plate.

7. The welding apparatus for tantalum-steel composite plates according to claim 6, characterized in that, The opposing mechanism (5) includes a dual-axis motor (51), two lead screws (52), two second shaft seats (53), two lead screw sliders (54), a moving plate (55), a branch plate (56), a transverse guide rod (57), and multiple guide wheels (58). The dual-axis motor (51) is located at the bottom of the welding table (2). The two lead screws (52) are respectively connected to the two output shafts of the dual-axis motor (51). The two second shaft seats (53) are symmetrically arranged at the bottom of both sides of the welding table (2) along the length direction. The ends of the two lead screws (52) are respectively connected to the corresponding second shaft seats (53), and the threads of the two lead screws (52) are opposite. The two lead screw sliders (54) are respectively screwed onto the corresponding lead screws (52), and the moving plate (55) is sleeved on the outside of the two lead screw sliders (54); The branch plate (56) is fixed to the top of the movable plate (55), and the branch plate (56) passes upward through the gap between the adjacent long strip steel (21) and is connected to the bottom of the corresponding vertical plate (431); The transverse guide rod (57) passes through the middle section of each branch plate (56), and the multiple guide wheels (58) correspond one-to-one with each of the long strip steel (21) and are sleeved on the outside of the transverse guide rod (57). Each of the long strip steel (21) has a guide groove (581) for sliding of the corresponding guide wheel (58).

8. The welding apparatus for tantalum-steel composite plates according to claim 6, characterized in that, A protective cover (7) is fixed on the side of the fixed plate (421) away from the pressure plate (422).

9. The welding apparatus for tantalum steel composite plates according to claim 7, characterized in that, The frame (1) is fixed with vertical plates (31) on both sides along its width direction, and the two vertical plates (31) are respectively arranged with the two limiting plates (3). The limiting plate (3) is fixedly provided with an adjusting screw (32) on the side facing the vertical plate (31). An adjusting nut (33) adapted to the adjusting screw (32) is screwed onto the vertical plate (31). A locking nut (34) for locking is also screwed onto the adjusting screw (32). An adjusting handle (35) is fixedly provided at the end of the adjusting screw (32) away from the limiting plate (3). Both sides of the limiting plate (3) are fixed with limiting light rods (36), and the vertical plate (31) is provided with guide openings for the limiting light rods (36) to slide through.

10. A welding method for a welding apparatus for tantalum steel composite plates, characterized in that, The welding apparatus for the tantalum steel composite plate according to any one of claims 1-9 includes the following steps: S1. Place the two tantalum steel composite plates to be welded on the welding table (2) of the frame (1), and adjust the limiting plates (3) on both sides of the welding table (2) in the width direction so that the two composite plates are aligned in the width direction. S2. Start the opposing mechanism (5) at the bottom of the welding table (2) and drive the positioning mechanisms (4) on both sides of the welding table (2) to move towards each other. The push plate (41) of the positioning mechanism (4) pushes the two composite plates closer to each other, so that the welding points of the two composite plates are aligned and fit together. S3. While the push plate (41) pushes the composite plate, the top positioning plate (42) is driven to flip downward through the linkage mechanism (43) of the positioning mechanism (4) to press and position the upper surface of the composite plate. S4. Start the welding robot (6) on the frame (1) and weld the weld joints of the two composite plates that have been aligned and attached. S5. After welding is completed, control the opposing mechanism (5) to drive the positioning mechanism (4) to move in opposite directions, and the linkage mechanism (43) drives the top positioning plate (42) to flip up and reset, release the positioning of the composite plate, and remove the welded composite plate.

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