Fireplace casting welding processing device

Abstract

The present application relates to fireplace casting processing technical field, especially to a kind of fireplace casting welding processing device, including base and the inclined plate of symmetry fixedly connected on base, base is fixedly connected with support, it further includes the guide frame of symmetry fixedly connected on support, slidingly connected with movable column between guide frame.The present application is by respectively placing the casting to be welded in front and back two sides u-shaped plate, by cylinder driven u-shaped plate moves to obliquely upper, the welding position of two castings is accurately matched and is between upper and lower two sides welding gun, then by electric sliding block drive welding gun along the synchronous welding of casting two sides, without welding one side after shutdown and then weld the other side, significantly improve the welding efficiency, and while welding gun moves to right and weld, drive chain horizontal spread, make pressing block synchronous laying in the weld position of casting two sides, carry out synchronous pressing limit to weld, can effectively control thermal deformation and thermal stress in welding process, further improve the welding quality.

Description

Technical Field

[0001] This invention relates to the field of fireplace casting processing technology, and more particularly to a fireplace casting welding processing device. Background Technology

[0002] As a home heating and decorative product, fireplaces are mostly made of gray cast iron or ductile iron castings, which are then welded together. The quality of the welding of the castings directly affects the structural strength, sealing performance and service life of the fireplace. It is one of the core processes in the fireplace production process. Some key components (such as fireplace panels and fireplace shells) require welding of both the inner and outer sides, which places high demands on the positioning accuracy of the welding equipment, the ability to weld on both sides and the ability to control thermal deformation.

[0003] Chinese Patent Publication No. CN106271275B discloses a welding device for casting production. The welding device for casting production of this invention includes a chassis, a first driving component disposed within the chassis, a lifting frame passing through the upper part of the chassis and covering the upper side of the first driving component, a crossbeam disposed at the upper end of the lifting frame, a welding component, and a fixing frame disposed on the side wall of the chassis and located below the welding component. The welding component includes an integrated component, a first adjusting ring, a welding torch, and an auxiliary rod. While the aforementioned patents, including those for reinforcing components, sliding feet, conveying components, and energy components, enable welding of castings, the single-sided setting of the welding torch limits welding to one side only. When encountering structures requiring double-sided welding (such as fireplace panels), the machine must be stopped, the workpiece flipped, re-clamped, and calibrated after welding one side, before welding the other side. This process not only prolongs the cycle time but also causes asymmetric thermal expansion and residual stress in the welding area due to the long interval between heat inputs and uneven heat dissipation, leading to warping, angular deformation, and even cracks, resulting in unstable welding quality.

[0004] The present invention aims to solve the problems existing in the above-mentioned patents. To this end, a fireplace casting welding processing device is proposed that can achieve double-sided collaborative welding of castings, apply pressure to the weld and effectively control welding deformation and thermal stress, thereby improving welding quality. Summary of the Invention

[0005] To overcome the shortcomings of welding fireplace castings that require welding on both sides (such as fireplace panels), where one side must be welded and the workpiece flipped over to weld the other side, this process not only prolongs the cycle time but also causes asymmetric thermal expansion and residual stress in the welding area due to the long interval between two heat inputs and uneven heat dissipation, resulting in unstable welding quality, this invention provides a fireplace casting welding processing device that can achieve double-sided collaborative welding of castings, apply pressure to the weld, effectively control welding deformation and thermal stress, and improve welding quality.

[0006] This invention is achieved through the following technical solution: A fireplace casting welding device includes a base and inclined plates symmetrically fixed to the base. A support is fixed to the base. The device also includes guide frames symmetrically fixed to the support. Movable columns are slidably connected between the guide frames. Welding torches are symmetrically mounted on the movable columns. Guide columns are fixed to the support and slidably connected to the movable columns. Sprockets are symmetrically rotatably connected to the movable columns. Movable blocks are symmetrically slidably connected to the inner side of the movable columns. Connecting springs connect the movable blocks and the movable columns. Chains are symmetrically fixed to the guide columns, and the chains pass around the sprockets and are fixed to the movable blocks. The chain is fixedly connected with V-shaped pressure blocks at even intervals. An electric slider is installed on the support and is fixedly connected to the movable column. The electric slider is used to drive the movable column to move. The movable column drives the sprocket and welding gun to move to the right. By setting the welding gun up and down, both sides of the casting can be welded simultaneously. The sprocket drives the pressure blocks to press on the weld position of the casting through the chain, so that the pressure blocks can effectively control the deformation and thermal stress of the weld. A feeding assembly is set on the inclined plate to move the casting to the welding area.

[0007] Further explanation: The feeding assembly includes a U-shaped plate slidably connected to the inclined plate for moving the casting to the welding area. Guide rollers are rotatably connected to the U-shaped plate at even intervals. An electric pressing block is installed on the side of the U-shaped plate that is far apart from each other for limiting the casting. Cylinders are symmetrically fixed to the inclined plate, and the end of the telescopic rod of the cylinder is fixedly connected to the U-shaped plate.

[0008] Further explanation: The fireplace casting welding processing device also includes a feeding assembly, which includes a bracket symmetrically fixed to the top of the base. A frame is fixed to the bracket for placing the casting to be welded. The frame is inclined and corresponds to the U-shaped plate. A feeding plate is slidably connected to the inner side of the frame. Guide rollers are evenly spaced and rotatably connected to the feeding plate. An electric push rod is installed on the frame. The telescopic rod end of the electric push rod is fixedly connected to the feeding plate. A limit component is provided on the frame for limiting the casting to be welded. An unloading assembly is provided at the top of the base for moving the welded casting to complete the unloading.

[0009] Further explanation: The unloading assembly includes an electric slide rail mounted on the top of the base. A frame located on the right side of the inclined plate is fixed to the moving part of the electric slide rail. An electric support seat is installed inside the frame to drive the welded casting to move and complete the unloading.

[0010] Further explanation: The limiting component includes a sliding baffle that passes through the frame to limit the casting to be welded; a trigger plate is symmetrically fixed to the bottom of the feeding plate, and the trigger plate contacts the baffle to squeeze and move the baffle; guide rods that pass through the baffle are fixed to the frame at even intervals, and a return spring is connected between the end of the guide rod and the baffle.

[0011] Further explanation: the fireplace casting welding processing device also includes a positioning component, which includes a rack slidably connected to a U-shaped plate. An L-shaped plate is fixed to the end of the rack for positioning the casting. A driving component is provided on the U-shaped plate for driving the rack to move.

[0012] Further explanation: the drive assembly includes a drive motor mounted on the U-shaped plate, and the output shaft end of the drive motor is fixedly connected to a drive gear that meshes with a rack.

[0013] To further explain, the fireplace casting welding device also includes a buffer strip fixed to the U-shaped plate for cushioning the casting.

[0014] The beneficial effects of this invention are as follows: 1. By placing the castings to be welded inside the U-shaped plates on the front and rear sides, the cylinder drives the U-shaped plates to move obliquely upwards, so that the welding positions of the two castings are precisely aligned and placed between the upper and lower welding guns. Then, the electric slider drives the welding gun to weld synchronously along both sides of the castings. There is no need to stop and flip the machine after welding one side to weld the other side, which greatly shortens the welding cycle of a single piece and significantly improves the welding efficiency. In addition, while the welding gun moves to the right to weld, it drives the chain to spread horizontally, so that the pressure blocks are synchronously laid at the weld positions on both sides of the castings, and synchronous pressure is applied to limit the weld. This can effectively control the thermal deformation and thermal stress during the welding process, make up for the lack of anti-deformation constraint mechanism in traditional welding equipment, and further improve the welding quality.

[0015] 2. Through the coordinated design of the frame, electric support base, electric slide rail and unloading mechanism, the automatic unloading of welded castings is realized. At the same time, through the linkage control of electric push rod, feeding plate, trigger plate and baffle, the automatic feeding of castings to be welded is realized. The entire loading and unloading process does not require manual operation, which further improves work efficiency and reduces labor intensity. It is particularly suitable for the needs of large-scale continuous production of fireplace castings.

[0016] 3. Through the transmission cooperation of the drive motor, drive gear and rack, the L-shaped plates on the left and right sides are driven to center and position the casting. This can effectively prevent the casting from deviating in position during the welding process, avoid problems such as welding misalignment and weld offset caused by inaccurate positioning, significantly improve the accuracy and consistency of welding the two castings, and reduce the scrap rate. Attached Figure Description

[0017] Figure 1 This is a three-dimensional structural diagram of the present invention.

[0018] Figure 2 This is a three-dimensional structural diagram of the guide frame and welding torch of the present invention.

[0019] Figure 3 This is a three-dimensional structural diagram of the movable column of the present invention.

[0020] Figure 4 This is a three-dimensional structural diagram of the sprocket, chain, and pressure block of the present invention.

[0021] Figure 5 This is a three-dimensional structural diagram of the loading and unloading assembly of the present invention.

[0022] Figure 6 This is a three-dimensional structural diagram of the frame and electric support base of the present invention.

[0023] Figure 7 This is a three-dimensional structural diagram of the trigger plate and baffle of the present invention.

[0024] Figure 8 This is a three-dimensional structural diagram of the positioning component of the present invention.

[0025] Figure 9 This is a three-dimensional structural diagram of the buffer strip of the present invention.

[0026] The above-mentioned attached drawings include the following reference numerals: 1. Base, 2. Inclined plate, 3. Support, 4. Movable column, 41. Guide frame, 42. Welding gun, 5. U-shaped plate, 51. Electric pressing block, 52. Guide roller, 53. Cylinder, 6. Sprocket, 7. Chain, 8. Pressing block, 9. Movable block, 10. Connecting spring, 11. Guide column, 12. Electric slider, 13. Bracket, 131. Frame, 132. Feeding plate, 133. Electric push rod, 134. Electric slide rail, 135. Frame, 136. Electric support seat, 137. Guide roller, 138. Trigger plate, 139. Baffle, 1310. Guide rod, 1311. Return spring, 14. Rack, 141. L-shaped plate, 142. Drive motor, 143. Drive gear, 15. Buffer bar. Detailed Implementation

[0027] The technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of them. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0028] Example: A welding processing device for fireplace castings, please refer to [link / reference]. Figures 1-4As shown, the system includes a base 1 and inclined plates 2 symmetrically fixed to the top of the base 1. A support 3 is fixed to the left side of the top of the base 1. The system also includes a movable column 4, a guide frame 41, a welding torch 42, a feeding assembly, a sprocket 6, a chain 7, a pressure block 8, a movable block 9, a connecting spring 10, a guide post 11, and an electric slider 12. The guide frame 41 is symmetrically fixed to the support 3, and the movable column 4 is slidably connected between the front and rear guide frames 41. The welding torch 42 is symmetrically mounted on the right side of the movable column 4, allowing for simultaneous welding of both sides of the casting. The guide post 11 is horizontally fixed to the upper part of the support 3, and the guide post 11 is slidably connected to the movable column 4. A sprocket 6 is symmetrically rotatably connected to the right side of the movable column 4. A movable block 9 is symmetrically slidably connected to the inner side of the movable column 4, and a connecting spring connects the right side of the movable block 9 to the inner right side of the movable column 4. Spring 10 and guide post 11 are symmetrically fixed with chains 7 on the right side. The upper and lower chains 7 pass over the upper and lower sprockets 6 and are fixedly connected to the right side of the upper and lower movable blocks 9. Pressure blocks 8 are fixedly fixed at even intervals on the outer side of the upper and lower chains 7. The pressure blocks 8 are V-shaped. An electric slider 12 is horizontally installed on the upper part of the support 3. The electric slider 12 is fixedly connected to the bottom left side of the movable column 4. The electric slider 12 is used to drive the movable column 4 to move. The movable column 4 drives the sprocket 6 and welding gun 42 to move to the right. Through the upper and lower setting of the welding gun 42, the two sides of the casting can be welded simultaneously. The sprocket 6 drives the pressure block 8 to press on the weld position of the casting through the chain 7, so that the pressure block 8 can effectively control the deformation and thermal stress of the weld. A feeding assembly is provided on the inclined plate 2. When the feeding assembly is in operation, the feeding assembly can drive the casting to the welding area.

[0029] Please see Figure 2 As shown, the feeding assembly includes a U-shaped plate 5, an electric pressing block 51, a guide roller 52, and a cylinder 53. The U-shaped plate 5 is slidably connected to both the front and rear inclined plates 2. The U-shaped plate 5 can move the casting to the welding area. The guide roller 52 is evenly spaced and rotated on the side of the front and rear U-shaped plates 5 that is close to each other. Four electric pressing blocks 51 are installed on the side of the front and rear U-shaped plates 5 that is far apart from each other. The electric pressing blocks 51 can limit the casting. The cylinder 53 is symmetrically fixed to both the front and rear inclined plates 2. The end of the telescopic rod of the cylinder 53 is fixedly connected to the U-shaped plate 5.

[0030] First, the operator places the two castings to be welded together into the front and rear U-shaped plates 5 respectively. The castings contact the guide rollers 52, which guide the castings to ensure smooth placement. Then, the electric pressing block 51 is activated to contact the castings and press them firmly onto the U-shaped plates 5. Next, the cylinder 53 is activated, and its extension rod extends, causing the front and rear U-shaped plates 5 to move diagonally upwards. The U-shaped plates 5 then move the castings on both sides diagonally upwards until the welding positions come into contact. When cylinder 53 is closed, the position on the casting to be welded is between the upper and lower welding torches 42. The electric slider 12 is activated, causing the movable column 4 to move to the right. This movement of the movable column 4 moves the sprocket 6 and welding torches 42 to the right, allowing the upper and lower welding torches 42 to simultaneously weld both sides of the casting, thus welding the two castings together. This eliminates the need to stop the machine after welding one side and flip the casting to weld the other side, improving welding efficiency. Simultaneously, the sprocket 6 moves to the right, pressing against the chain 7. Since one end of the sprocket 6 is fixed... When the sprocket 6 moves to the right, it exerts a horizontal squeezing force on the chain 7, causing the chain 7 to gradually unfold horizontally from its folded state. This horizontal unfolding of the chain 7 causes one end to drive the movable block 9 to slide to the right within the movable column 4, compressing the connecting spring 10. The horizontal unfolding of the chain 7 then causes the upper and lower pressure blocks 8 to be placed at the weld seams on both sides of the casting. The pressure blocks 8 apply pressure and limit the weld seams on both sides of the casting, effectively controlling welding deformation and thermal stress, thereby improving welding quality. After the two castings are completely welded together, the welding torch 42 is closed, and the... The electric slider 12 drives the movable column 4 to move to the left and reset. The movable column 4 drives the sprocket 6 and welding torch 42 to move to the left and reset. The sprocket 6 stops pressing the chain 7 as it moves to the left. Due to the action of the connecting spring 10, the movable block 9 slides to the left within the movable column 4, driving one end of the chain 7 to move to the left and reset. The reset of the chain 7 drives the pressure block 8 to move to the reset and stop at the weld seam of the casting. The electric slider 12 is turned off, and the electric pressing block 51 is activated to move to the reset and release the casting. The operator can then remove the welded casting from the U-shaped plate 5 for subsequent processing. After the welded casting is removed from the U-shaped plate 5, the cylinder 53 is activated to drive the front and rear U-shaped plates 5 to move diagonally downwards and reset. The cylinder 53 is then turned off. This process is repeated to continuously weld two castings together.

[0031] Please see Figures 5-7As shown, the fireplace casting welding processing device also includes a feeding assembly mounted on the base 1. The feeding assembly includes a bracket 13, a frame 131, a feeding plate 132, an electric push rod 133, a unloading assembly, a guide roller 137, and a limiting assembly. The bracket 13 is symmetrically fixed to the top of the base 1, and the frame 131 is fixed to the upper part of the bracket 13 on both the front and rear sides. The frame 131 can place the casting to be welded. The frame 131 is inclined and corresponds to the U-shaped plate 5. The feeding plate is slidably connected to the inner side of the frame 131 on both the front and rear sides. 132. Guide rollers 137 are evenly spaced and rotatably connected to the feeding plate 132. An electric push rod 133 is installed on the outer right side of the frame 131. The end of the telescopic rod of the electric push rod 133 is fixedly connected to the lower right side of the feeding plate 132. A limit component is provided on the frame 131 to limit the casting to be welded. A discharge component is provided on the top of the base 1. When the discharge component operates, it can move the welded casting to the right to complete the discharge. The discharge component includes an electric slide rail 134, a frame 135, and an electric support. The base 1 has an electric slide rail 134 mounted on its top right side. A frame 135 is fixed to the moving part of the electric slide rail 134. The frame 135 is located on the right side of the front and rear inclined plates 2. An electric support seat 136 is installed inside the frame 135. The electric support seat 136 can move the welded casting to complete the unloading. The limiting component includes a trigger plate 138, a baffle 139, a guide rod 1310, and a return spring 1311. The baffle 139 is slidably connected to the lower part of the front and rear frames 131. When the casting to be welded is placed into the frame 1... When the baffle 139 is within 31, it can limit the casting to be welded. The bottom of the front and rear feeding plates 132 are symmetrically fixed with trigger plates 138. The trigger plates 138 on the left and right sides respectively contact the left and right sides of the baffle 139. When the trigger plates 138 move, they can squeeze and move the baffle 139. The lower part of the outer side of the frame 131 is fixed with guide rods 1310 at even intervals. The guide rods 1310 pass through the baffle 139. The end of the guide rod 1310 is connected to the outer side of the baffle 139 with a return spring 1311.

[0032] Please see Figure 8As shown, the fireplace casting welding processing device also includes a positioning component mounted on the U-shaped plate 5. The positioning component includes a rack 14, an L-shaped plate 141, and a drive component. The rack 14 is slidably connected to the left and right sides of the U-shaped plate 5 on the side that is close to each other. The L-shaped plate 141 is fixedly connected to the ends of the rack 14 on the left and right sides that are far apart from each other. When the L-shaped plate 141 moves and contacts the side of the casting, the L-shaped plate 141 can position the casting. The drive component is provided on the outer side of the U-shaped plate 5. When the drive component operates, it can drive the rack 14 to move. The drive component includes a drive motor 142 and a drive gear 143. The drive motor 142 is mounted on the outer side of the U-shaped plate 5. The drive gear 143 is fixedly connected to the output shaft end of the drive motor 142 and meshes with the rack 14.

[0033] When the two castings are placed into the front and rear U-shaped plates 5 respectively, the operator can place the castings that need to be welded together into the front and rear frames 131 respectively. The castings contact the guide rollers 137, which guide the castings placed into the frame 135. After the castings in the frame 131 are placed, they contact the baffle 139 and are blocked. Then, welding can begin on the castings in the U-shaped plates 5. After the welding of the castings in the U-shaped plates 5 is completed, the electric slide rail 134 is activated to move the frame 135 to the left. The frame 135 moves the electric support base 136 to the left. When the casting is directly below the welded part, close the electric slide rail 134, then activate the electric support base 136 to move upwards and contact the welded casting. Close the electric support base 136, and then the electric pressing block 51 releases the welded casting. Activate the cylinder 53 to move the U-shaped plates 5 on both sides diagonally downwards to reset. The U-shaped plates 5 disengage from the welded casting, and the welded casting is then supported and limited by the electric support base 136. Then, activate the electric slide rail 134 to move the frame 135 to the right to reset. The frame 135, through the electric support base 136, moves the welded casting to the right to the unloading position, where it can be unloaded. The welded casting is removed from the electric support base 136 by machine or manually. Simultaneously, the electric push rod 133 is activated. The extension rod of the electric push rod 133 moves the feeding plate 132 diagonally downwards. The feeding plate 132 moves the trigger plate 138 and the casting to be welded diagonally downwards. The trigger plate 138 presses against the baffle 139, causing the baffle 139 to move outwards. The return spring 1311 is compressed, and the baffle 139 stops obstructing the casting. The casting on the feeding plate 132 then slides diagonally downwards into the U-shaped plate 5. This completes the feeding of the casting. The castings to be welded on the front and rear sides... When the castings slide into the U-shaped plates 5 on the front and rear sides respectively, the electric push rod 133 is activated to drive the feeding plate 132 to move diagonally upward and reset. The reset of the feeding plate 132 drives the trigger plate 138 to move diagonally upward and reset. The reset of the trigger plate 138 stops pressing the baffle 139. Due to the action of the reset spring 1311, the baffle 139 moves inward and resets. The operator can then continue to put the subsequent castings to be welded into the frame 131, where they are blocked by the baffle 139. In this way, the automatic feeding of castings can be completed, and the unloading of welded castings can also be completed without manual loading and unloading, thereby further improving work efficiency.

[0034] When the casting to be welded is within the U-shaped plate 5, the drive motor 142 is started. The drive motor 142 drives the drive gear 143 to rotate forward. The forward rotation of the drive gear 143 causes the left and right racks 14 to move relative to each other. The racks 14 cause the left and right L-shaped plates 141 to move relative to each other. The left and right L-shaped plates 141 move and contact the sides of the casting, centering the casting. The drive motor 142 is then turned off, and the racks 14 stop moving the L-shaped plates 141. The subsequent welding operation can then begin. After the two castings are welded together, the drive motor 142 is started again, causing the drive gear 143 to rotate in reverse. The reverse rotation of the drive gear 143 causes the left and right racks 14 to move backward and reset. The racks 14 cause the left and right L-shaped plates 141 to move backward and reset, disengaging the L-shaped plates 141 from the welded casting. This prevents welding problems caused by casting position deviations, thereby improving the accuracy of welding the two castings.

[0035] Please see Figure 9 As shown, the fireplace casting welding processing device also includes a buffer strip 15. The bottom of the U-shaped plates 5 on both the front and rear sides is fixed with the buffer strip 15. When the casting is placed in the U-shaped plate 5, the buffer strip 15 can buffer the casting.

[0036] When the casting slides into the U-shaped plate 5, it comes into contact with the buffer strip 15, which cushions and protects the casting. This prevents the casting from violently contacting the U-shaped plate 5 and causing wear, thus ensuring the safety of the casting as it slides down.

[0037] The above description is merely an embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural or procedural transformations made based on the content of the present invention specification, or direct or indirect applications in other related technical fields, are similarly included within the patent protection scope of the present invention.

Claims

1. A fireplace casting welding processing device, comprising a base (1) and inclined plates (2) symmetrically fixed to the base (1), wherein a support (3) is fixed to the base (1), characterized in that, It also includes guide frames (41) symmetrically fixed to the support (3), movable columns (4) slidably connected between the guide frames (41), welding guns (42) symmetrically mounted on the movable columns (4), guide columns (11) fixed to the support (3) and slidably connected to the movable columns (4), sprockets (6) symmetrically rotatably connected to the movable columns (4), movable blocks (9) symmetrically slidably connected to the inner side of the movable columns (4), connecting springs (10) connecting the movable blocks (9) and the movable columns (4), chains (7) symmetrically fixed to the guide columns (11), the chains (7) passing around the sprockets (6) and fixedly connected to the movable blocks (9), and the chains (7) are evenly spaced The support (3) is fixed with a V-shaped pressure block (8), and an electric slider (12) is installed on the support (3). The electric slider (12) is fixedly connected to the movable column (4). The electric slider (12) is used to drive the movable column (4) to move. The movable column (4) drives the sprocket (6) and the welding gun (42) to move to the right. By setting the welding gun (42) up and down, the two sides of the casting can be welded simultaneously. The sprocket (6) drives the pressure block (8) to press on the weld position of the casting through the chain (7) so that the pressure block (8) can effectively control the deformation and thermal stress of the weld. The inclined plate (2) is provided with a feeding component to drive the casting to the welding area.

2. The fireplace casting welding processing device according to claim 1, characterized in that, The feeding assembly includes a U-shaped plate (5) slidably connected to the inclined plate (2) for moving the casting to the welding area. Guide rollers (52) are rotatably connected at even intervals on the U-shaped plate (5). Electric pressing blocks (51) are installed on the opposite side of the U-shaped plates (5) for limiting the casting. Cylinders (53) are symmetrically fixed on the inclined plate (2). The end of the telescopic rod of the cylinder (53) is fixedly connected to the U-shaped plate (5).

3. The fireplace casting welding processing device according to claim 2, characterized in that, The fireplace casting welding processing device also includes a feeding assembly, which includes a bracket (13) symmetrically fixed to the top of the base (1). A frame (131) is fixed on the bracket (13) for placing the casting to be welded. The frame (131) is inclined and corresponds to the U-shaped plate (5). A feeding plate (132) is slidably connected to the inner side of the frame (131). Guide rollers (137) are evenly spaced and rotated on the feeding plate (132). An electric push rod (133) is installed on the frame (131). The end of the telescopic rod of the electric push rod (133) is fixedly connected to the feeding plate (132). A limit component is provided on the frame (131) for limiting the casting to be welded. A discharge assembly is provided on the top of the base (1) for moving the welded casting to complete the discharge.

4. The fireplace casting welding processing device according to claim 3, characterized in that, The unloading assembly includes an electric slide rail (134) mounted on the top of the base (1). A frame (135) located on the right side of the inclined plate (2) is fixed to the moving part of the electric slide rail (134). An electric support seat (136) is installed inside the frame (135) to drive the welded casting to move and complete the unloading.

5. The fireplace casting welding processing device according to claim 4, characterized in that, The limiting assembly includes a baffle (139) that slides through the frame (131) to limit the casting to be welded. A trigger plate (138) is symmetrically fixed to the bottom of the feeding plate (132). The trigger plate (138) contacts the baffle (139) to squeeze and move the baffle (139). Guide rods (1310) that pass through the baffle (139) are fixedly fixed at even intervals on the frame (131). A return spring (1311) is connected between the end of the guide rod (1310) and the baffle (139).

6. The fireplace casting welding processing device according to claim 5, characterized in that, The fireplace casting welding processing device also includes a positioning component, which includes a rack (14) slidably connected to a U-shaped plate (5). An L-shaped plate (141) is fixed to the end of the rack (14) for positioning the casting. A driving component is provided on the U-shaped plate (5) for driving the rack (14) to move.

7. The fireplace casting welding processing device according to claim 6, characterized in that, The drive assembly includes a drive motor (142) mounted on a U-shaped plate (5), and the output shaft end of the drive motor (142) is fixedly connected to a drive gear (143) that meshes with a rack (14).

8. The fireplace casting welding processing device according to claim 7, characterized in that, The fireplace casting welding processing device also includes a buffer strip (15) fixed to the U-shaped plate (5) for cushioning the casting.

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