Electric chafing dish heating plate welding production equipment and using method

Abstract

The invention discloses electric chafing dish heating disc welding production equipment and a using method, and relates to the field of heating disc welding, the electric chafing dish heating disc welding production equipment comprises a base, an overturning piece is fixedly arranged at the end of the base, a supporting plate is fixedly arranged at the end of the overturning piece, and a welding piece is fixedly arranged at the upper end of the supporting plate; the limiting calibration assembly is assembled at the end part of the supporting plate; according to the electric chafing dish heating disc welding production equipment and the using method, the limiting calibration assembly is used for expanding the inner diameter size of the heating pipe outwards in a self-adaptive mode and abutting against the inner walls of the heating pipes with different inner diameter tolerances, accurate centering of workpieces of different specifications can be achieved, the stable locking state can be always kept in the welding and follow-up rolling process, and the welding production efficiency is improved. Welding quality reduction caused by positioning looseness is avoided; and meanwhile, the workpiece can be pressed in the welding process, and generation of hot cracks and surface air holes in the welding process is effectively reduced.

Description

Technical Field

[0001] This invention relates to heating plate welding technology, specifically to a production equipment and method for welding heating plates for electric hot pots. Background Technology

[0002] The heating plate of an electric hot pot is typically welded from a metal substrate to heating elements arranged in a disc or ring shape. The quality of this welding directly affects the heat conduction efficiency, sealing performance, and service life of the heating plate. Electromagnetic induction heating is used to quickly weld the aluminum / copper disc to the metal base. During welding, the brazing filler metal is placed at the interface, and a high-frequency coil generates eddy currents to heat the filler metal to its melting point, achieving a metallurgical bond.

[0003] Chinese invention patent CN120587785A discloses a welding production equipment for electric cooker heating plates. This equipment only requires the operator to place the bottom of the pot on the positioning column of the front positioning component. With the cooperation of the servo motor, drive gear, and mounting gear, the positioning component can be driven to rotate counterclockwise. During the process, the clamp, clamping surface, and upper edge of the positioning component cooperate to automatically clamp the bottom of the pot and the heating plate. After welding is completed, the clamping of the bottom of the pot and the heating plate will be automatically released. The operation is convenient and greatly improves the overall welding efficiency of the heating plate.

[0004] In existing equipment, the heating plate blank is a thin-walled part formed by stamping and stretching, and its inner hole roundness and flatness tolerance are large. If it is forcibly clamped, elastic deformation stress will be generated inside the workpiece. When the high temperature of welding causes the material to melt instantly, the stress release will cause the weld to shift, and even cause secondary deformation after cooling, resulting in an uneven bottom surface of the finished heating plate and assembly interference. At the same time, it is impossible to detect the stability of the workpiece during welding and subsequent cooling, and it is easy to miss the spatter or impurities generated during welding, which will lead to unqualified weld points. Therefore, a welding production equipment and usage method for electric hot pot heating plates has been developed. Summary of the Invention

[0005] The purpose of this invention is to provide a welding production equipment and method for electric hot pot heating plates, so as to solve the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, the present invention provides the following technical solution: a welding production equipment for electric hot pot heating plates, comprising a base, a flipping component fixedly disposed at the end of the base, a support plate fixedly disposed at the end of the flipping component, and a welding component fixedly disposed at the upper end of the support plate;

[0007] The limit calibration assembly, which is assembled at the end of the support plate, includes a pressing plate for pressing the workpiece, and a movable block, an adjusting block and a limiting rod that are capable of radial movement;

[0008] The outer surface of the pressing plate is slidably connected to the inner wall of the movable block. At the same time, the movable block can be adjusted along the outer surface of the pressing plate. One side of the movable block is slidably connected to the adjusting block, and the end of the adjusting block is slidably connected to the outer surface of the limiting rod, thereby allowing the limiting rod to move in a direction perpendicular to the adjusting block to perform radial calibration and locking of the workpiece.

[0009] The detection assembly, which is assembled on the inner wall of the support plate, includes a swing block and a vibrating plate for driving the workpiece to vibrate after welding.

[0010] The end of the swing block is engaged with the end of the vibrating plate. The swing block drives the vibrating plate to reciprocate, and the limiting rod is used to detect the stability of the welding point of the workpiece after welding.

[0011] As a further optimization of the present invention, the limiting calibration component further includes a positioning rod that is engaged with the support plate, a positioning ring is slidably disposed on the outer surface of the positioning rod, and a positioning plate is fixedly disposed on the outer surface of the positioning ring;

[0012] The positioning plate has multiple sets of fixing grooves evenly opened at its end. The inner wall of the fixing groove is rotatably provided with a fixing rod, and the end of the fixing rod away from the fixing groove is rotatably provided with a fixing block.

[0013] As a further optimization of the present invention, a limiting disk is fixedly provided at the lower end of the positioning rod, a limiting groove is provided at the lower end of the limiting disk, a docking ring is slidably fitted into the inner wall of the limiting groove, and a calibration rod is fixedly provided on the inner wall of the docking ring.

[0014] As a further optimization of the present invention, the outer surface of the docking ring is fixedly connected to the end of the pressing plate, and the pressing plate is evenly distributed on the outer surface of the docking ring. The end of the pressing plate is provided with a pressing groove, and the inner wall of the pressing groove is fitted and slidably connected to the outer surface of the fixing block.

[0015] As a further optimization of the present invention, the detection component further includes a locking plate that engages with the support plate, wherein the locking plate is symmetrically fixedly provided with a connecting plate at its end, and the connecting plate is engaged with a connecting block at its end.

[0016] As a further optimization of the present invention, the upper end of the locking plate is symmetrically provided with protective rings.

[0017] As a further optimization of the present invention, a connecting groove is provided at the end of the connecting block, and a turntable is slidably provided on the inner wall of the connecting block, with the outer surface of the turntable engaging and rotating with the inner wall of the swing block.

[0018] As a further optimization of the present invention, a movable shaft is slidably provided at the end of the turntable and near the edge. The outer surface of the movable shaft is slidably connected to the outer surface of the connecting groove. At the same time, movable rings are fixedly provided at both ends of the movable shaft, and the outer surface of the movable rings is slidably connected to the inner wall of the protective ring.

[0019] As a further optimization of the present invention, a connecting rod is rotatably provided at one end of the swing block, and the end of the connecting rod is rotatably connected to the end of the connecting block;

[0020] The other end of the swing block is rotatably provided with a second connecting rod, the end of the second connecting rod being rotatably connected to the end of the connecting block, and the first connecting rod and the second connecting rod being arranged in a circle around the turntable.

[0021] A method for welding heating plates for electric hot pots, using any one of the welding production devices described above, the welding production method comprising the following steps:

[0022] S1. Place the electric hot pot base to be welded in the arc-shaped groove on the surface of the support plate. The calibration rod extends into the inner hole of the heating tube synchronously with the docking ring. When the end of the calibration rod contacts the inner wall of the heating tube, the positioning plate continues to move down, causing the fixing block to apply a radial expansion force to the pressing plate. Each pressing plate evenly expands the inner wall of the heating tube, achieving precise alignment between the heating tube and the electric hot pot base.

[0023] S2. By sliding the movable block along the outer surface of the pressing plate to a suitable position and fixing it with a pin, the adjusting block drives the limiting rod to extend outward under the action of the spring, so that the spherical structure at the end of the limiting rod forms an elastic point contact with the outer edge of the electric hot pot base, which is used for bidirectional locking of the workpiece.

[0024] S3. The electric telescopic rod at the end of the protective ring is activated, driving the movable ring to move back and forth along the inner wall of the protective ring. The movable shaft then drives the turntable to rotate eccentrically. The swing block swings back and forth under the joint constraint of connecting rod one and connecting rod two, which promotes the separation of welding residual impurities from the main body. It also works with the limit rod to slide along the outer surface of the workpiece to synchronously detect the welding point.

[0025] Compared with the prior art, the electric hot pot heating plate welding production equipment and usage method provided by the present invention have the following beneficial effects:

[0026] The limit calibration component can adaptively expand outward according to the inner diameter of the heating tube, pressing against the inner wall of the heating tube with different inner diameter tolerances. It can not only achieve precise centering for workpieces of different specifications, but also maintain a stable locking state during welding and subsequent rolling processes, avoiding a decrease in welding quality due to loose positioning. At the same time, it can also press the workpiece during the welding process, effectively reducing the generation of thermal cracks and surface porosity during welding.

[0027] By inspecting the welded joints with the detection components, impurities generated during the welding process can be efficiently removed. In conjunction with the limit calibration components, the quality of the welded joints can be detected in real time, ensuring that the surface of the welded joints is clean and free of obvious defects, thereby improving the quality and reliability of the welding.

[0028] By working together with the limit calibration component and the detection component, the thermal expansion and contraction effect of metal caused by welding thermal cycle can be sensed in real time and dynamically corrected, which fundamentally eliminates the risk of weld misalignment caused by the accumulation of thermal deformation. At the same time, the weld points are inspected after welding to ensure the overall quality of welding. Attached Figure Description

[0029] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this invention. For those skilled in the art, other drawings can be obtained based on these drawings.

[0030] Figure 1 This is a first schematic diagram of the overall structure provided in an embodiment of the present invention;

[0031] Figure 2 This is a second schematic diagram of the overall structure provided in an embodiment of the present invention;

[0032] Figure 3 This is a schematic diagram of the limit calibration component structure provided in an embodiment of the present invention;

[0033] Figure 4 This is a first exploded view of the limit calibration component structure provided in an embodiment of the present invention;

[0034] Figure 5 This is a second exploded view of the limit calibration component structure provided in an embodiment of the present invention;

[0035] Figure 6 This is a schematic diagram of the detection component structure provided in an embodiment of the present invention;

[0036] Figure 7 This is a cross-sectional view of the internal structure of the detection component provided in an embodiment of the present invention;

[0037] Figure 8 An exploded view of the detection component structure provided in an embodiment of the present invention.

[0038] Explanation of reference numerals in the attached figures:

[0039] 1. Base; 2. Limit calibration assembly; 3. Detection assembly; 11. Flip-over component; 12. Support plate; 13. Welded component; 21. Positioning rod; 22. Positioning plate; 221. Positioning ring; 23. Fixing groove; 231. Fixing rod; 232. Fixing block; 24. Limiting disc; 241. Limiting groove; 25. Docking ring; 26. Pressing plate; 261. Pressing groove; 27. Movable block; 271. Adjusting block; 272. Limiting rod; 28. Calibration rod; 31. Locking plate; 311. Snap-fit ​​plate; 32. Protective ring; 33. Connecting block; 331. Connecting groove; 34. Turntable; 341. Swinging block; 35. Movable shaft; 351. Movable ring; 36. Connecting rod one; 37. Connecting rod two; 38. Vibration plate. Detailed Implementation

[0040] To enable those skilled in the art to better understand the technical solution of the present invention, the present invention will be further described in detail below with reference to the accompanying drawings.

[0041] Example 1: Please refer to Figure 1 - Figure 8 A welding production equipment for electric hot pot heating plates includes a base 1, a flipping component 11 is fixedly provided at the end of the base 1, a support plate 12 is fixedly provided at the end of the flipping component 11, and a welding component 13 is fixedly provided at the upper end of the support plate 12.

[0042] In this solution, the flipping component 11 is composed of a drive motor and a drive disk, and the drive disk is fixedly connected to the support plate 12 near the edge. When the drive motor drives, it drives the support plate 12 to rotate synchronously, thereby realizing the flipping adjustment of the support plate 12 and the work station above it, which facilitates subsequent operations.

[0043] The surface of the support plate 12 has an arc-shaped groove that matches the outer contour of the electric hot pot, which is used to initially place the electric hot pot base to be welded.

[0044] The end of the welded part 13 is equipped with a telescopic component such as an electric telescopic rod. This component is connected to an external control device to adjust the position of the welded part 13 to meet different welding requirements. At the same time, the welded part 13 adopts a high-frequency induction heating coil structure, which uses the principle of electromagnetic induction to locally and rapidly heat the contact area between the brazing filler and the workpiece to complete the welding operation.

[0045] Furthermore, the limiting calibration assembly 2, which is mounted on the end of the support plate 12, includes a pressing plate 26 for pressing the workpiece, and a movable block 27, an adjusting block 271, and a limiting rod 272 that can move radially. The outer surface of the pressing plate 26 is slidably connected to the inner wall of the movable block 27, and the movable block 27 can be adjusted in position along the outer surface of the pressing plate 26. One side of the movable block 27 is slidably connected to the adjusting block 271, and the end of the adjusting block 271 is slidably connected to the outer surface of the limiting rod 272, thereby causing the limiting rod 272 to move in a direction perpendicular to the adjusting block 271 to radially calibrate and lock the workpiece.

[0046] In this embodiment, the end of the movable block 27 is provided with a pin or other component that has a locking function, which is used to limit the entire movable block 27 until the movable block 27 moves to a suitable position along the pressing plate 26 and then stops.

[0047] The movable block 27 has a movable groove at its end. The inner wall of the movable groove is provided with elastic components such as springs. The inner wall of the movable groove is fitted and slidably connected to the outer surface of the adjusting block 271. The end of the spring is fixedly connected to the end of the adjusting block 271 to limit the position of the adjusting block 271.

[0048] The outer surface of the limiting rod 272 is fitted and slidably disposed on the inner wall of the adjusting block 271, and the end of the limiting rod 272 is spherical. When the outer surface of the workpiece is squeezed, the adjusting block 271 is moved along the inner wall of the movable groove until the limiting rod 272 locks the workpiece, so that the spherical end of the limiting rod 272 forms a point contact with the outer surface of the workpiece, which not only ensures the stability of the locking, but also avoids indentation damage to the surface of the workpiece due to excessive contact area.

[0049] When the workpiece expands due to heat, the limiting rod 272 can slide slightly along the inner wall of the adjusting block 271. With the elastic buffer of the spring, dynamic adaptive adjustment can be achieved, effectively preventing positioning failure caused by thermal deformation.

[0050] Furthermore, the limit calibration component 2 also includes a positioning rod 21 that is snapped into the support plate 12. A positioning ring 221 is slidably provided on the outer surface of the positioning rod 21, and a positioning plate 22 is fixedly provided on the outer surface of the positioning ring 221. Multiple sets of fixing grooves 23 are evenly provided at the end of the positioning plate 22. A fixing rod 231 is rotatably provided on the inner wall of the fixing groove 23, and a fixing block 232 is rotatably provided on the end of the fixing rod 231 away from the fixing groove 23.

[0051] Specifically, the end of the positioning plate 22 is fixedly provided with a telescopic component such as an electric telescopic rod, and is connected to an external control device. The electric telescopic rod drives the positioning plate 22 to move up and down along the outer surface of the positioning rod 21, thereby driving the fixing groove 23 and the internal fixing rod 231 to move synchronously.

[0052] The fixed rod 231 adopts a double-end hinge structure, with one end rotatably connected to the inner wall of the fixed groove 23 and the other end rotatably connected to the fixed block 232, forming a linkage mechanism that can adaptively adjust the angle.

[0053] When the positioning plate 22 moves downward, the angle between the fixing rod 231 and the fixing groove 23 gradually increases, pushing the fixing block 232 to expand outward; conversely, when the positioning plate 22 moves upward, the fixing rod 231 retracts, causing the fixing block 232 to retract inward.

[0054] The end of the positioning rod 21 is fixedly equipped with a device such as a motor that has a power output function, and the device is connected to an external control device. The motor drives the entire limit calibration assembly 2 to rotate, and the limit rod 272 is used to perform mechanical inspection on the welding point.

[0055] Furthermore, a limiting disc 24 is fixedly provided at the lower end of the positioning rod 21, and a limiting groove 241 is provided at the lower end of the limiting disc 24. A docking ring 25 is slidably fitted into the inner wall of the limiting groove 241, and a calibration rod 28 is fixedly provided on the inner wall of the docking ring 25.

[0056] Specifically, the limiting groove 241 has an annular structure with a T-shaped or dovetail-shaped cross-section, which matches the cross-sectional shape of the docking ring 25. This ensures that the docking ring 25 can only slide axially within the limiting groove 241 and cannot detach, while also ensuring the coaxiality accuracy between the docking ring 25 and the limiting disk 24.

[0057] The calibration rods 28 are evenly arranged circumferentially along the inner wall of the docking ring 25, and their number matches the positioning requirements of the inner hole of the heating tube. The ends of the calibration rods 28 are provided with wear-resistant coatings or roller structures to reduce frictional resistance when in contact with the inner wall of the heating tube, and at the same time avoid scratching the surface of the workpiece.

[0058] Furthermore, the outer surface of the docking ring 25 is fixedly connected to the end of the pressing plate 26, and the pressing plate 26 is evenly distributed on the outer surface of the docking ring 25. The end of the pressing plate 26 is provided with a pressing groove 261, and the inner wall of the pressing groove 261 is fitted and slidably connected to the outer surface of the fixing block 232.

[0059] Specifically, during the reciprocating movement of the fixed block 232 along the pressing groove 261, force is applied evenly to the pressing plate 26, so that the pressing plate 26 precisely limits the workpiece, ensuring that the force applied by each pressing plate 26 is balanced, and avoiding local stress concentration that could cause workpiece deformation; at the same time, with the guiding effect of the pressing groove 261, the movement trajectory of the fixed block 232 is ensured to be stable and controllable.

[0060] Furthermore, the detection component 3, which is assembled on the inner wall of the support plate 12, includes a swing block 341 and a vibration plate 38 for driving the workpiece to vibrate after welding; the end of the swing block 341 is engaged with the end of the vibration plate 38, and the swing block 341 drives the vibration plate 38 to reciprocate, which, together with the limit rod 272, detects the stability of the welding point of the workpiece after welding.

[0061] In this embodiment, when the swing block 341 moves, it will drive the vibration plate 38 to move accordingly, thereby generating vibration on the main body of the workpiece welding. The end of the vibration plate 38 is provided with a rubber pad or a polyurethane buffer layer to provide flexible support when in contact with the bottom of the workpiece, avoid rigid collisions that could damage the workpiece surface, and improve the uniformity of vibration transmission, thereby effectively detecting whether there are defects such as incomplete welding, cracks or poor bonding at the welding point.

[0062] Furthermore, the detection component 3 also includes a locking plate 31 that engages with the support plate 12. A snap-fit ​​plate 311 is symmetrically fixed to the end of the locking plate 31, and a connecting block 33 is snap-fitted to the end of the snap-fit ​​plate 311. A protective ring 32 is symmetrically arranged at the upper end of the locking plate 31.

[0063] Specifically, the locking plate 31 provides limiting support for the connecting block 33 through the snap-fit ​​plate 311, so that the connecting block 33 maintains stable axial movement capability under the guidance of the protective ring 32; the end of the protective ring 32 is provided with a limiting boss, which is used to mechanically limit the extreme position of the movable ring 351 to prevent the movable shaft 35 from leaving the effective working area during reciprocating motion. At the same time, the end of the protective ring 32 is provided with a telescopic component such as an electric telescopic rod, which is connected to an external control device to drive the movable ring 351, which is slidably set on the inner wall of the protective ring 32, to move.

[0064] Furthermore, a connecting groove 331 is provided at the end of the connecting block 33, and a turntable 34 is slidably provided on the inner wall of the connecting block 33. The outer surface of the turntable 34 is fitted and rotatedly connected with the inner wall of the swing block 341.

[0065] Specifically, the turntable 34 and the swing block 341 are limited by the connecting block 33, so that the swing block 341 moves back and forth along the inner wall of the connecting block 33 when it is subjected to force. In addition, the vibration plate 38 applies vibration to the main body of the welding workpiece, thereby separating the impurities generated during welding from the main body, and at the same time, the firmness of the welding point is tested.

[0066] Furthermore, a movable shaft 35 is slidably provided at the end of the turntable 34 and near the edge. The outer surface of the movable shaft 35 is slidably connected to the outer surface of the connecting groove 331. At the same time, movable rings 351 are fixedly provided at both ends of the movable shaft 35. The outer surface of the movable rings 351 is slidably connected to the inner wall of the protective ring 32.

[0067] Specifically, when the movable ring 351 moves, it drives the movable shaft 35, which is set on its inner wall, to move. Since the movable shaft 35 is slidably set near the edge of the turntable 34, the movable shaft 35 drives the turntable 34 to rotate when it moves, causing the swing block 341 to produce a reciprocating swing motion.

[0068] The connection point between the movable shaft 35 and the turntable 34 is offset from the center of the turntable 34, forming an eccentric wheel mechanism. This mechanism converts the linear motion of the movable ring 351 into the rotational motion of the turntable 34, and then converts the rotational motion into the reciprocating linear vibration of the vibrating plate 38 through the swing block 341, thereby achieving precise control of the vibration frequency and amplitude.

[0069] Furthermore, a connecting rod 36 is rotatably provided at one end of the swing block 341, and the end of the connecting rod 36 is rotatably connected to the end of the connecting block 33; a connecting rod 37 is rotatably provided at the other end of the swing block 341, and the end of the connecting rod 37 is rotatably connected to the end of the connecting block 33. The connecting rod 36 and the connecting rod 37 are arranged in a circle around the turntable 34.

[0070] Specifically, the swing block 341 is constrained and supported by connecting rod 36 and connecting rod 37, so that the swing block 341 maintains a stable motion trajectory during reciprocating swing, avoiding lateral deviation or jamming.

[0071] The working principle is as follows: the electric hot pot base to be welded is placed in the arc-shaped groove on the surface of the support plate 12. Then, the external control device drives the electric telescopic rod at the end of the positioning plate 22 to move downward. The positioning plate 22 slides down along the outer surface of the positioning rod 21. The angle between the fixing rod 231 and the fixing groove 23 gradually increases, pushing the fixing block 232 to expand outward along the pressing groove 261, and simultaneously driving the pressing plate 26 and the docking ring 25 to move downward along the limiting groove 241.

[0072] Simultaneously, the calibration rod 28 extends into the inner hole of the heating tube along with the docking ring 25. After the end of the calibration rod 28 contacts the inner wall of the heating tube, the positioning plate 22 continues to move downward, causing the fixing block 232 to apply a radial expansion force to the pressing plate 26. Each pressing plate 26 evenly expands the inner wall of the heating tube, achieving precise alignment between the heating tube and the electric hot pot base. Based on the outer diameter of the heating tube, the movable block 27 is slidably adjusted to a suitable position along the outer surface of the pressing plate 26 and fixed with a pin. Under the action of the spring, the adjusting block 271 drives the limiting rod 272 to extend outward, causing the spherical structure at the end of the limiting rod 272 to form an elastic point contact with the outer edge of the electric hot pot base, completing the bidirectional locking of the workpiece.

[0073] The electric telescopic rod of the welding component 13 adjusts the high-frequency induction heating coil to the welding station to locally and rapidly heat the contact area between the brazing filler metal and the workpiece. During the welding process, the pressing plate 26 continuously applies axial pressure to the heating tube to suppress the generation of welding hot cracks and surface porosity; when the workpiece expands due to heat, the limiting rod 272 slides slightly along the inner wall of the adjusting block 271, and with the elastic buffer of the spring, it compensates for the amount of thermal deformation in real time and maintains the locking stability.

[0074] After welding is completed, the drive motor of the flipping component 11 is started, and the support plate 12 is flipped to the horizontal working position through the drive plate. Then the electric telescopic rod at the end of the protective ring 32 is started, driving the movable ring 351 to move back and forth along the inner wall of the protective ring 32. The movable shaft 35 drives the turntable 34 to rotate eccentrically. The swing block 341 swings back and forth under the joint constraint of the connecting rod 1 36 and the connecting rod 2 37, thereby driving the vibration plate 38 to apply controllable vibration to the bottom of the workpiece.

[0075] The rubber pad at the end of the vibrating plate 38 evenly transmits vibration to the welding area, promoting the separation of welding residues from the main body. Simultaneously, the vibration response characteristics are used to detect the bonding strength of the weld joint, and the limiting rod 272 slides along the outer surface of the workpiece to synchronously detect the weld joint. If a weak weld or crack is present, the abnormal vibration feedback will be captured by the external sensing system, thus enabling real-time judgment of the welding quality.

[0076] The control device can choose a microcontroller as the control terminal. In this embodiment, the microcontroller is a typical embedded microcontroller unit, consisting of an arithmetic logic unit (ALU), a controller, memory, input / output devices, etc., essentially a miniature computer. Compared to general-purpose microprocessors used in personal computers, it emphasizes self-sufficiency (no external hardware required) and cost savings. Its biggest advantage is its small size, allowing it to be placed inside the instrument, but it has limited storage capacity, simple input / output interfaces, and low power consumption.

[0077] Example 2: A welding production method for heating plates of electric hot pots, using any of the welding production devices described above, the welding production method includes the following steps:

[0078] S1. Place the electric hot pot base to be welded into the arc-shaped groove on the surface of the support plate 12. The calibration rod 28 extends into the inner hole of the heating tube simultaneously with the docking ring 25. After the end of the calibration rod 28 contacts the inner wall of the heating tube, the positioning plate 22 continues to move downward, causing the fixing block 232 to apply a radial expansion force to the pressing plate 26. Each pressing plate 26 evenly expands the inner wall of the heating tube, achieving precise alignment between the heating tube and the electric hot pot base.

[0079] S2. By sliding the movable block 27 along the outer surface of the pressing plate 26 to a suitable position and fixing it with a pin, the adjusting block 271 drives the limiting rod 272 to extend outward under the action of the spring, so that the spherical structure at the end of the limiting rod 272 forms an elastic point contact with the outer edge of the electric hot pot base, which is used for bidirectional locking of the workpiece.

[0080] S3. The electric telescopic rod at the end of the protective ring 32 is activated, driving the movable ring 351 to move back and forth along the inner wall of the protective ring 32. The movable shaft 35 then drives the turntable 34 to rotate eccentrically. The swing block 341 swings back and forth under the joint constraint of the connecting rod 1 36 and the connecting rod 2 37, which promotes the separation of welding residual impurities from the main body, and cooperates with the limiting rod 272 to slide along the outer surface of the workpiece to synchronously detect the welding point.

[0081] The foregoing has only described certain exemplary embodiments of the present invention by way of illustration. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the foregoing drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A welding production equipment for electric hot pot heating plates, comprising a base (1), characterized in that, A flipping component (11) is fixedly provided at the end of the base (1), a support plate (12) is fixedly provided at the end of the flipping component (11), and a welding component (13) is fixedly provided at the upper end of the support plate (12). The limit calibration assembly (2), which is assembled at the end of the support plate (12), includes a pressing plate (26) for pressing the workpiece, and has a movable block (27), an adjusting block (271) and a limit rod (272) that can move radially. The outer surface of the pressing plate (26) is fitted and slidably connected to the inner wall of the movable block (27). At the same time, the movable block (27) can be adjusted along the outer surface of the pressing plate (26). One side of the movable block (27) is slidably connected to the adjusting block (271), and the end of the adjusting block (271) is slidably connected to the outer surface of the limiting rod (272), thereby allowing the limiting rod (272) to move in a direction perpendicular to the adjusting block (271) to radially calibrate and lock the workpiece. The detection component (3), which is assembled on the inner wall of the support plate (12), includes a swing block (341) and a vibrating plate (38) for driving the workpiece to vibrate after welding. The end of the swing block (341) is engaged with the end of the vibrating plate (38). The swing block (341) drives the vibrating plate (38) to reciprocate, and the limiting rod (272) is used to detect the stability of the welding point of the workpiece after welding.

2. The electric hot pot heating plate welding production equipment according to claim 1, characterized in that, The limit calibration component (2) also includes a positioning rod (21) that is engaged with the support plate (12). A positioning ring (221) is slidably provided on the outer surface of the positioning rod (21), and a positioning plate (22) is fixedly provided on the outer surface of the positioning ring (221). The positioning plate (22) has multiple sets of fixing grooves (23) evenly opened at its end. The inner wall of the fixing groove (23) is rotatably provided with a fixing rod (231), and a fixing block (232) is rotatably provided at the end of the fixing rod (231) away from the fixing groove (23).

3. The electric hot pot heating plate welding production equipment according to claim 2, characterized in that, The lower end of the positioning rod (21) is fixedly provided with a limiting disk (24), the lower end of the limiting disk (24) is provided with a limiting groove (241), the inner wall of the limiting groove (241) is fitted with a docking ring (25), and the inner wall of the docking ring (25) is fixedly provided with a calibration rod (28).

4. The electric hot pot heating plate welding production equipment according to claim 3, characterized in that, The outer surface of the docking ring (25) is fixedly connected to the end of the pressing plate (26), and the pressing plate (26) is evenly distributed on the outer surface of the docking ring (25). The end of the pressing plate (26) is provided with a pressing groove (261), and the inner wall of the pressing groove (261) is fitted and slidably connected to the outer surface of the fixing block (232).

5. The electric hot pot heating plate welding production equipment according to claim 4, characterized in that, The detection component (3) further includes a locking plate (31) that is engaged with the support plate (12). The locking plate (31) is symmetrically fixed with a snap-fit ​​plate (311) at its end, and a connecting block (33) is engaged with the end of the snap-fit ​​plate (311).

6. The electric hot pot heating plate welding production equipment according to claim 5, characterized in that, The upper end of the locking plate (31) is symmetrically provided with protective rings (32).

7. The electric hot pot heating plate welding production equipment according to claim 6, characterized in that, The end of the connecting block (33) is provided with a connecting groove (331), and a turntable (34) is slidably provided on the inner wall of the connecting block (33). The outer surface of the turntable (34) is fitted and rotated with the inner wall of the swing block (341).

8. The electric hot pot heating plate welding production equipment according to claim 7, characterized in that, A movable shaft (35) is slidably provided at the end of the turntable (34) and near the edge. The outer surface of the movable shaft (35) is slidably connected to the outer surface of the connecting groove (331). At the same time, movable rings (351) are fixedly provided at both ends of the movable shaft (35). The outer surface of the movable rings (351) is slidably connected to the inner wall of the protective ring (32).

9. The electric hot pot heating plate welding production equipment according to claim 8, characterized in that, One end of the swing block (341) is rotatably provided with a connecting rod (36), and the end of the connecting rod (36) is rotatably connected to the end of the connecting block (33); The other end of the swing block (341) is rotatably provided with a connecting rod two (37), the end of the connecting rod two (37) is rotatably connected to the end of the connecting block (33), and the connecting rod one (36) and the connecting rod two (37) are arranged in a circle around the turntable (34).

10. A method for welding heating plates for electric hot pots, characterized in that, The welding production apparatus as described in any one of claims 1-9, the welding production method includes the following steps: S1. Place the electric hot pot base to be welded in the arc-shaped groove on the surface of the support plate (12). The calibration rod (28) is inserted into the inner hole of the heating tube simultaneously with the docking ring (25). When the end of the calibration rod (28) contacts the inner wall of the heating tube, the positioning plate (22) continues to move down, so that the fixing block (232) applies radial expansion force to the pressing plate (26). Each pressing plate (26) evenly expands the inner wall of the heating tube, so as to achieve precise alignment between the heating tube and the electric hot pot base. S2. By sliding the movable block (27) along the outer surface of the pressing plate (26) to a suitable position and fixing it with a pin, the adjusting block (271) drives the limiting rod (272) to extend outward under the action of the spring, so that the spherical structure at the end of the limiting rod (272) forms an elastic point contact with the outer edge of the electric hot pot base, which is used for bidirectional locking of the workpiece. S3. The electric telescopic rod at the end of the protective ring (32) is activated, driving the movable ring (351) to move back and forth along the inner wall of the protective ring (32). The movable shaft (35) then drives the turntable (34) to rotate eccentrically. The swing block (341) swings back and forth under the joint constraint of the connecting rod one (36) and the connecting rod two (37), causing the welding residual impurities to separate from the main body, and in conjunction with the limiting rod (272), it slides along the outer surface of the workpiece to synchronously detect the welding point.

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