Combination welding equipment for inner shell and outer shell of barbecue oven

Abstract

The invention relates to the technical field of welding equipment, in particular to combined welding equipment for an inner shell and an outer shell of a barbecue oven, which comprises a fixed base, a placing barrel for placing the inner shell and the outer shell is arranged on the fixed base, and a rotary discharging assembly is jointly arranged in the fixed base and the placing barrel. The rotary discharging assembly is used for driving the inner shell and the outer shell to rotate, a preheating assembly used for conducting preheating treatment on the welding positions of the inner shell and the outer shell is arranged on the containing cylinder, and a mounting frame is arranged on the portion, located on one side of the containing cylinder, of the fixed base. A welding device and a cooling assembly are arranged on the mounting frame, the welding device is used for welding the inner shell and the outer shell, and the cooling assembly is used for cooling a welding seam. According to the barbecue oven, cracks can be prevented from occurring in the welding seam when the inner shell and the outer shell of the barbecue oven are assembled and welded, and therefore the assembling and welding effect of the inner shell and the outer shell can be guaranteed.

Description

Technical Field

[0001] The invention relates to the technical field of welding equipment, in particular to a combined welding equipment for inner and outer shells of a barbecue oven. Background Art

[0002] A barbecue grill is a barbecue equipment that can be used to make barbecue foods such as lamb kebabs and barbecue. Barbecue grills can be divided into three types: charcoal barbecue grills, gas barbecue grills and electric barbecue grills. Among them, gas barbecue grills and electric barbecue grills are popular because they are smokeless and pollution-free to the products. Charcoal barbecue grills are suitable for outdoor use and are easy to heat.

[0003] The furnace body of an existing barbecue oven is usually composed of an inner shell and an outer shell, and the inner shell and the outer shell are both cylindrical. In the preparation process of the barbecue oven body, the inner shell and the outer shell need to be prepared and formed separately first, and then the inner shell and the outer shell are assembled and welded into a whole by welding equipment, so that the preparation of the furnace body is completed.

[0004] When the inner shell and the outer shell are welded together using existing welding equipment, since both the inner shell and the outer shell are cylindrical, a complete circular weld will be formed during the welding process. However, during the welding process, too much heat will gather on one side of the circular weld, which will cause excessive thermal stress on this side, and easily cause cracks in the weld between the inner shell and the outer shell, affecting the welding effect of the inner shell and the outer shell. Summary of the invention

[0005] In order to prevent cracks from appearing in the weld of the inner shell and the outer shell of the barbecue oven during assembly welding, thereby ensuring the assembly welding effect of the inner shell and the outer shell, the present application provides an assembly welding device for the inner and outer shells of the barbecue oven.

[0006] The present application provides a combined welding device for the inner and outer shells of a barbecue grill, which adopts the following technical solution: A combined welding device for inner and outer shells of a barbecue grill, comprising a fixed base, a placing cylinder for placing an inner shell and an outer shell is provided on the fixed base, a rotating discharge component is provided in the fixed base and the placing cylinder, the rotating discharge component is used to drive the inner shell and the outer shell to rotate, a preheating component is provided on the placing cylinder for preheating the welding position of the inner shell and the outer shell, a mounting frame is provided on the fixed base at one side of the placing cylinder, a welding device and a cooling component are provided on the mounting frame, the welding device is used to weld the inner shell and the outer shell, and the cooling component is used to cool the weld.

[0007] By adopting the above technical solution, the use of a preheating assembly helps to preheat the inner shell and the outer shell, thereby helping to reduce the temperature difference between the welding area and the adjacent area, helping to reduce the welding stress and strain rate at the weld position, thereby helping to prevent cracks from occurring at the weld position, and ensuring the joint welding effect of the inner shell and the outer shell. The use of a cooling assembly helps to cool the weld position, thereby helping to reduce the thermal stress at the weld position, thereby helping to further prevent cracks from occurring at the weld position, and further ensuring the joint welding effect of the inner shell and the outer shell. The use of a welding device helps to weld the inner shell and the outer shell, and the use of a rotating discharge assembly helps to drive the inner shell and the outer shell to rotate, thereby facilitating the welding device to weld different positions of the inner shell and the outer shell.

[0008] In a specific feasible implementation scheme, the preheating assembly includes a fixed sleeve, a mounting ring plate and an induction coil, the fixed sleeve is sleeved on the circumferential outer wall of the top of the placement cylinder, and the tube wall of the fixed sleeve is hollow, the mounting ring plate is arranged on the circumferential inner wall of the fixed sleeve, and the mounting ring plate is provided with a spirally arranged mounting groove, and the induction coil is embedded in the mounting groove.

[0009] By adopting the above technical solution, using the induction coil to connect the external high-frequency current helps to generate an alternating magnetic field around the induction coil, thereby helping to generate eddy currents inside the inner shell and the outer shell through the alternating magnetic field, and then helping to increase the temperature of the inner shell and the outer shell through energy loss, that is, helping to preheat the inner shell and the outer shell, thereby helping to reduce the temperature difference between the welding area and the adjacent area, helping to reduce the welding stress and strain rate at the weld position, and then helping to prevent cracks from occurring at the weld position, thereby ensuring the assembly welding effect of the inner shell and the outer shell.

[0010] In a specific possible implementation scheme, the cooling assembly includes a connecting block, a gas pipeline and an air nozzle, the connecting block is movably arranged on the mounting frame, the air nozzle is penetrated and arranged on the connecting block, the gas pipeline is fixedly connected to the air nozzle, and the connecting block is provided with a locking assembly for locking the position of the connecting block.

[0011] By adopting the above technical solution, the gas pipeline is used to help transport the cooling gas to the air nozzle, and the air nozzle is used to help spray the cooling gas to the weld position, so that the cooling gas is used to absorb the heat at the weld position, that is, it helps to cool the weld position, thereby helping to reduce the thermal stress at the weld position, and further helps to prevent cracks from occurring at the weld position, further ensuring the assembly welding effect of the inner shell and the outer shell. The locking assembly is used to help lock the position of the connecting block on the mounting frame, thereby helping to improve the accuracy of the cooling gas spraying position.

[0012] In a specific feasible implementation scheme, the locking assembly includes a threaded rod, an abutment plate, a handwheel and a friction block, one end of the threaded rod is threadedly inserted in the connecting block, the abutment plate is rotatably connected to the end of the threaded rod inserted into the connecting block, a clearance cavity is provided in the connecting block, the abutment plate is located in the clearance cavity and the circumferential side wall of the abutment plate is slidably abutted against the wall of the clearance cavity, the handwheel is provided at one end of the threaded rod away from the abutment plate, the friction block is sleeved on the circumferential periphery of the threaded rod, and the friction block is located between the connecting block and the handwheel.

[0013] By adopting the above technical solution, the hand wheel is used to help drive the threaded rod to rotate and move, thereby helping to drive the abutment plate and the mounting frame to abut against each other, and then helping to lock the position of the connecting block on the mounting frame, thereby improving the accuracy of the cooling gas ejection position.

[0014] In a specific possible implementation scheme, the rotary discharge assembly includes a rotary cylinder and a rotary disk, the rotary cylinder is embedded in the fixed base, the rotary disk is arranged at the output end of the rotary cylinder, the rotary disk is located inside the placement cylinder, and the circumferential side wall of the rotary disk is slidably fitted with the circumferential inner wall of the placement cylinder.

[0015] By adopting the above technical solution, the rotary cylinder is used to help drive the rotary disk to rotate, thereby helping to drive the inner shell and the outer shell to rotate, and further helping to facilitate the welding device to weld different positions of the inner shell and the outer shell.

[0016] In a specific implementation scheme, an ejection mechanism and a positioning assembly are provided on the rotating disk, the ejection mechanism is used to eject the inner shell and the outer shell out of the placement cylinder, and the positioning assembly is used to clamp and position the outer shell with the cooperation of the ejection mechanism.

[0017] By adopting the above technical solution, the ejection mechanism is used to help eject the welded inner shell and outer shell to place the cylinder, thereby helping to improve the convenience of operators taking out the welded inner shell and outer shell. The positioning component is used to help clamp and position the outer shell under the drive of the ejection mechanism, thereby helping to improve the stability of the outer shell placement position.

[0018] In a specific possible implementation, the ejection mechanism includes a telescopic sleeve, the telescopic sleeve is arranged on the rotating disk, an ejection plate is arranged at the top of the telescopic sleeve, and a driving component for driving the telescopic sleeve to extend and retract is arranged inside the telescopic sleeve.

[0019] By adopting the above technical solution, when the welding of the inner shell and the outer shell is completed, the driving assembly is used to help drive the telescopic sleeve to extend, thereby helping to drive the ejection plate to lift upward, and then helping to eject the welded inner shell and the outer shell out of the cylinder, thereby improving the convenience for the operator to take out the welded inner shell and the outer shell.

[0020] In a specific feasible implementation scheme, the drive assembly includes a drive motor, a first screw, a second screw and a threaded sleeve, the drive motor is fixedly arranged on the inner bottom wall of the telescopic sleeve, the first screw is connected to the output end of the drive motor and is vertically arranged, the threaded sleeve is arranged on the inner top wall of the telescopic sleeve, and the opening of the threaded sleeve is arranged downward, the second screw is vertically arranged and the top end of the second screw is arranged inside the threaded sleeve, a threaded hole is vertically arranged on the bottom surface of the second screw, and the top end of the first screw is arranged in the threaded hole.

[0021] By adopting the above technical solution, when the welding of the inner shell and the outer shell is completed, the driving motor is used to help drive the first screw to rotate, thereby helping the second screw to move upward while rotating, and then helping to drive the threaded sleeve to move upward, so that the telescopic sleeve extends, thereby helping the telescopic sleeve to drive the ejector plate to lift upward during the extension process, and then helping to eject the welded inner shell and outer shell from the placement cylinder, thereby improving the convenience for the operator to take out the welded inner shell and outer shell.

[0022] In a specific possible implementation scheme, the positioning assembly includes a positioning plate, a first connecting rod, a movable block and a second connecting rod. A plurality of movable tracks are arranged in a circular array on the top surface of the rotating disk. The bottom of the positioning plate is clamped in the movable track, and the movable block is movably arranged in the movable track. One end of the first connecting rod is connected to the positioning plate, and the other end is connected to the movable block. One end of the second connecting rod is hinged to the movable block, and the other end is hinged to the bottom surface of the ejection plate.

[0023] By adopting the above technical solution, when the jacking plate moves downward, the jacking plate helps to drive the movable block to move toward the center position of the rotating disk through the second connecting rod, which helps to use the first connecting rod to drive the positioning plate to move synchronously, and further helps to make multiple positioning plates converge toward the center position of the rotating disk, and helps to clamp and position the outer shell through multiple positioning plates, thereby helping to improve the stability of the outer shell placed on the jacking plate.

[0024] In a specific possible implementation manner, a flexible gasket is provided on a surface of the positioning plate facing the ejection plate; and a roller is rotatably provided on a side wall of the movable block.

[0025] By adopting the above technical solution, the flexible gasket is used to protect the outer shell, and the roller is used to improve the smoothness of the movement of the movable block in the movable track.

[0026] In summary, the present application includes at least one of the following beneficial technical effects: 1. The present application provides a preheating assembly and a cooling assembly. The preheating assembly helps to preheat the inner shell and the outer shell, thereby helping to reduce the temperature difference between the welding area and the adjacent area, helping to reduce the welding stress and strain rate at the weld position, thereby helping to prevent cracks at the weld position, and ensuring the joint welding effect of the inner shell and the outer shell; the cooling assembly helps to cool the weld position, thereby helping to reduce the thermal stress at the weld position, thereby helping to further prevent cracks at the weld position, and further ensuring the joint welding effect of the inner shell and the outer shell; 2. The present application provides an ejection mechanism and a positioning assembly. The ejection mechanism helps to eject the welded inner shell and outer shell and place them in the cylinder, thereby helping to improve the convenience for operators to take out the welded inner shell and outer shell; the positioning assembly helps to clamp and position the outer shell under the drive of the ejection mechanism, thereby helping to improve the stability of the outer shell placed on the lifting plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0027] Figure 1 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Figure 2 It is a schematic diagram showing the specific structure of the rotating discharge component and the preheating component.

[0029] Figure 3 It is a schematic diagram showing the specific structure of the ejection mechanism.

[0030] Figure 4 It is a schematic diagram showing the specific structure of the drive component.

[0031] Figure 5 yes Figure 3 Enlarged view of point A in the middle.

[0032] Figure 6 It is a schematic diagram showing the specific structure of the cooling component and the locking component.

[0033] Description of reference numerals: 1. fixed base; 2. placing cylinder; 3. rotating discharge assembly; 31. rotating cylinder; 32. rotating disk; 4. preheating assembly; 41. fixed sleeve; 42. mounting ring plate; 43. induction coil; 5. mounting frame; 6. welding device; 7. cooling assembly; 71. connecting block; 72. gas pipeline; 73. air nozzle; 8. mounting groove; 9. locking assembly; 91. threaded rod; 92. abutment sheet; 93 , hand wheel; 94, friction block; 10, give way cavity; 11, telescopic sleeve; 12, ejector plate; 13, drive assembly; 131, drive motor; 132, first screw; 133, second screw; 134, threaded sleeve; 14, threaded hole; 15, positioning assembly; 151, positioning plate; 152, first connecting rod; 153, movable block; 154, second connecting rod; 16, movable track; 17, flexible gasket; 18, roller. DETAILED DESCRIPTION

[0034] The present application is further described in detail below in conjunction with the accompanying drawings.

[0035] The present application embodiment discloses a combined welding device for the inner and outer shells of a barbecue oven, referring to Figure 1 and Figure 2 , including a fixed base 1, on which a mounting frame 5 and a placement cylinder 2 are fixedly mounted, and the mounting frame 5 and the placement cylinder 2 are arranged adjacent to each other. A welding device 6 is fixedly mounted on the mounting frame 5, and a rotating material discharge assembly 3 is commonly provided in the fixed base 1 and the placement cylinder 2, and the rotating material discharge assembly 3 includes a rotating cylinder 31 and a rotating disk 32, the rotating cylinder 31 is fixedly embedded in the fixed base 1, and the rotating disk 32 is fixedly mounted at the output end of the rotating cylinder 31, and the rotating disk 32 is located inside the placement cylinder 2, and the circumferential side wall of the rotating disk 32 is slidably fitted with the circumferential inner wall of the placement cylinder 2.

[0036] Reference Figure 3 and Figure 4, an ejection mechanism is provided on the rotating disk 32, and the ejection mechanism includes a telescopic sleeve 11 fixedly mounted on the rotating disk 32, an ejection plate 12 is fixedly mounted on the top of the telescopic sleeve 11, and a driving assembly 13 is provided inside the telescopic sleeve 11. The driving assembly 13 includes a driving motor 131, a first screw 132, a second screw 133 and a threaded sleeve 134, the driving motor 131 is fixedly mounted on the inner bottom wall of the telescopic sleeve 11, and the output end of the driving motor 131 extends upward, the first screw 132 is vertically arranged in the telescopic sleeve 11, and the bottom end of the first screw 132 is coaxially fixedly connected with the output end of the driving motor 131, the top end of the threaded sleeve is fixedly mounted on the inner top wall of the telescopic sleeve 11, and the opening of the threaded sleeve is arranged downward. The second screw 133 is vertically arranged in the telescopic sleeve 11, and the diameter of the second screw 133 is greater than the diameter of the first screw 132. The top end of the second screw 133 is threadedly connected to the inside of the threaded sleeve. A threaded hole 14 is opened on the bottom surface of the second screw 133, and the top end of the first screw 132 is threadedly connected to the inside of the threaded hole 14.

[0037] Reference Figure 3 and Figure 5 , multiple groups of positioning components 15 are arranged on the circumference of the rotating disk 32, and the multiple groups of positioning components 15 are arranged in a circular array. Each group of positioning components 15 includes a positioning plate 151, a first connecting rod 152, a movable block 153 and a second connecting rod 154. A plurality of movable tracks 16 are opened on the top surface of the rotating disk 32, and the plurality of movable tracks 16 are arranged in a circular array. The bottom of each positioning plate 151 is snap-fitted and installed inside the movable track 16, and a flexible gasket 17 is fixed on the top inner wall of the positioning plate 151; the movable block 153 can be movably placed inside the movable track 16, and rollers 18 are rotatably installed on the opposite side walls of the movable block 153; one end of the first connecting rod 152 is fixedly connected to the positioning plate 151, and the end of the first connecting rod 152 away from the positioning plate 151 is fixedly connected to the movable block 153, one end of the second connecting rod 154 is hinged to the movable block 153, and the end of the second connecting rod 154 away from the movable block 153 is hinged to the bottom surface of the ejection plate 12.

[0038] Reference Figure 3 and Figure 4 When the inner shell and the outer shell are assembled and welded, the assembled inner shell and the outer shell are placed on the ejection plate 12, and the driving motor 131 is started to drive the first screw 132 to rotate. While the first screw 132 rotates, it drives the second screw 133 to rotate and move downward at the same time, so that the threaded sleeve 134 moves downward, and then drives the telescopic sleeve 11 to gradually shorten, and at the same time drives the ejection plate 12 to move downward, so that the inner shell and the outer shell move down to the inside of the placement cylinder 2.

[0039] Reference Figure 3 and Figure 5In the process of the ejection plate 12 moving downward, the second connecting rod 154 drives the movable block 153 to move toward the center position of the rotating disk 32 under the action of the ejection plate 12, thereby pulling the positioning plate 151 to move synchronously through the first connecting rod 152, so that the multiple positioning plates 151 are gathered toward the center position of the rotating disk 32 until the flexible gasket 17 is tightly pressed against the outer shell, thereby helping to clamp and position the outer shell through the multiple positioning plates 151, and then helping to improve the stability of the outer shell placed on the lifting plate.

[0040] Reference Figure 1 and Figure 2 A preheating assembly 4 is arranged on the circumferential periphery of the top of the placement cylinder 2, and the preheating assembly 4 includes a fixed sleeve 41, a mounting ring plate 42 and an induction coil 43. The fixed sleeve 41 is fixedly sleeved on the circumferential outer wall of the top of the placement cylinder 2, and the interior of the tube wall of the fixed sleeve 41 is hollow. The mounting ring plate 42 is fixedly installed on the circumferential inner wall of the fixed sleeve 41, and a mounting groove 8 is opened on the circumferential side wall of the mounting ring plate 42. The mounting groove 8 is spirally arranged and the induction coil 43 is fixedly embedded in the mounting groove 8.

[0041] Reference Figure 1 and Figure 2 After the inner shell and the outer shell are placed, the induction coil 43 is connected to the external high-frequency current, so that an alternating magnetic field is generated around the induction coil 43, thereby generating eddy currents inside the inner shell and the outer shell through the alternating magnetic field, and then using energy loss to increase the temperature of the inner shell and the outer shell, and preheating the inner shell and the outer shell helps to reduce the temperature difference between the welding area and the adjacent area of ​​the inner shell and the outer shell, thereby helping to reduce the welding stress and strain rate at the weld position, and then helping to prevent cracks at the weld position, thereby ensuring the assembly welding effect of the inner shell and the outer shell.

[0042] Reference Figure 1 and Figure 6 The mounting frame 5 is provided with a cooling assembly 7, which includes a connecting block 71, an air pipeline 72 and an air nozzle 73. The connecting block 71 is adjustable and mounted on the mounting frame 5. The air nozzle 73 is fixed through the connecting block 71. The air pipeline 72 is fixedly connected to the air nozzle 73. The connecting block 71 is provided with a locking assembly 9, which includes a threaded rod 91, an abutment sheet 92, a hand wheel 93 and a friction block 94. One end of the threaded rod 91 is threadedly inserted into the connecting block 71, and the abutment sheet 92 is rotatably connected to the end of the threaded rod 91 inserted into the connecting block 71. A clearance cavity 10 is provided in the connecting block 71. The abutment sheet 92 is located in the clearance cavity 10 and the circumferential side wall of the abutment sheet 92 is slidably abutted against the wall of the clearance cavity 10. The hand wheel 93 is fixedly connected to the end of the threaded rod 91 away from the abutment sheet 92. The friction block 94 is sleeved on the circumferential periphery of the threaded rod 91 and is located between the connecting block 71 and the hand wheel 93.

[0043] Reference Figure 1 and Figure 6 When adjusting the position of the connecting block 71 on the mounting frame 5, the operator manually adjusts the position of the connecting block 71 to the set position, and then turns the hand wheel 93 to drive the threaded rod 91 to move toward the inside of the connecting block 71 while rotating, so that the abutment piece 92 moves in the clearance cavity 10 until the abutment piece 92 is tightly abutted against the mounting frame 5, which helps to lock the position of the connecting block 71 on the mounting frame 5 and improves the placement stability of the connecting block 71 on the mounting frame 5.

[0044] Reference Figure 1 and Figure 2 After the preheating treatment of the inner shell and the outer shell is completed, the welding device 6 is used to weld the inner shell and the outer shell. At the same time, the rotating cylinder 31 is started to drive the rotating disk 32 to rotate at a specific frequency, thereby helping to improve the convenience of the welding device 6 in welding different positions of the inner shell and the outer shell.

[0045] Reference Figure 1 and Figure 6 During the welding process, the external cooling gas is transported to the air nozzle 73 through the gas pipeline 72, and then ejected to the weld position where welding is completed through the air nozzle 73, so as to help absorb the heat at the weld position by using the cooling gas, that is, to help cool the weld position, thereby helping to reduce the thermal stress at the weld position, and further helping to further prevent cracks from occurring at the weld position, further ensuring the assembly welding effect of the inner shell and the outer shell.

[0046] Reference Figure 3 and Figure 4 After the welding process of the inner shell and the outer shell is completed, the driving motor 131 is started to drive the first screw 132 to rotate in the opposite direction. While the first screw 132 rotates, it drives the second screw 133 to rotate and move upward at the same time, so that the threaded sleeve 134 moves upward, thereby driving the telescopic sleeve 11 to gradually extend, and driving the ejection plate 12 to move upward, which helps to eject the welded inner shell and outer shell and place the cylinder 2, thereby improving the convenience of the operator to take out the welded inner shell and outer shell.

[0047] The implementation principle of the embodiment of the present application is: when the inner shell and the outer shell are assembled and welded, the assembled inner shell and the outer shell are placed on the ejection plate 12, and the drive motor 131 is started to drive the first screw 132 to rotate. While the first screw 132 rotates, it drives the second screw 133 to rotate and move downward at the same time, so that the threaded sleeve 134 moves downward, and then drives the telescopic sleeve 11 to gradually shorten, and at the same time drives the ejection plate 12 to move downward, so that the inner shell and the outer shell move down to the inside of the placement cylinder 2.

[0048] During the downward movement of the ejection plate 12, the second connecting rod 154 drives the movable block 153 to move toward the center position of the rotating disk 32 under the action of the ejection plate 12, thereby pulling the positioning plate 151 to move synchronously through the first connecting rod 152, so that the multiple positioning plates 151 are gathered toward the center position of the rotating disk 32 until the flexible gasket 17 is tightly pressed against the outer shell, thereby helping to clamp and position the outer shell through the multiple positioning plates 151, and further helping to improve the stability of the outer shell placed on the lifting plate.

[0049] When the inner shell and the outer shell are placed, the induction coil 43 is connected to the external high-frequency current, so that an alternating magnetic field is generated around the induction coil 43, thereby generating eddy currents inside the inner shell and the outer shell through the alternating magnetic field, and then using energy loss to increase the temperature of the inner shell and the outer shell, and preheating the inner shell and the outer shell helps to reduce the temperature difference between the welding area and the adjacent area of ​​the inner shell and the outer shell, thereby helping to reduce the welding stress and strain rate at the weld position, and then helping to prevent cracks at the weld position, thereby ensuring the assembly welding effect of the inner shell and the outer shell.

[0050] After the preheating treatment of the inner shell and the outer shell is completed, the inner shell and the outer shell are welded using the welding device 6, and at the same time, the rotating cylinder 31 is started to drive the rotating disk 32 to rotate at a specific frequency, thereby helping to improve the convenience of the welding device 6 in welding different positions of the inner shell and the outer shell. During the welding process, the external cooling gas is transported to the air nozzle 73 through the gas pipeline 72, and then ejected through the air nozzle 73 to the weld position where the welding is completed, thereby helping to absorb the heat at the weld position by the cooling gas, that is, helping to cool the weld position, thereby helping to reduce the thermal stress at the weld position, and then helping to further prevent cracks from occurring at the weld position, further ensuring the assembly welding effect of the inner shell and the outer shell.

[0051] After the welding process of the inner shell and the outer shell is completed, the drive motor 131 is started to drive the first screw 132 to rotate in the opposite direction. While the first screw 132 rotates, it drives the second screw 133 to rotate and move upward at the same time, so that the threaded sleeve 134 moves upward, and then drives the telescopic sleeve 11 to gradually extend, and drives the ejection plate 12 to move upward, which helps to eject the welded inner shell and outer shell and place the cylinder 2, thereby improving the convenience for the operator to take out the welded inner shell and outer shell.

[0052] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A welding device for assembling the inner and outer shells of a barbecue oven, characterized in that: The invention comprises a fixed base (1), wherein a placement cylinder (2) for placing an inner shell and an outer shell is arranged on the fixed base (1), a rotating discharge component (3) is arranged in the fixed base (1) and the placement cylinder (2), and the rotating discharge component (3) is used to drive the inner shell and the outer shell to rotate, and a preheating component (4) is arranged on the placement cylinder (2) for preheating the welding position of the inner shell and the outer shell, and a mounting frame (5) is arranged on one side of the placement cylinder (2) on the fixed base (1), and a welding device (6) and a cooling component (7) are arranged on the mounting frame (5), and the welding device (6) is used to perform welding processing on the inner shell and the outer shell, and the cooling component (7) is used to cool the weld.

2. The device for welding the inner and outer shells of a barbecue grill according to claim 1, characterized in that: The preheating assembly (4) comprises a fixed sleeve (41), a mounting ring plate (42) and an induction coil (43); the fixed sleeve (41) is sleeved on the circumferential outer wall of the top of the placement cylinder (2), and the tube wall of the fixed sleeve (41) is hollow; the mounting ring plate (42) is arranged on the circumferential inner wall of the fixed sleeve (41), and the mounting ring plate (42) is provided with a spiral mounting groove (8), and the induction coil (43) is embedded in the mounting groove (8).

3. The device for welding the inner and outer shells of a barbecue grill according to claim 1, characterized in that: The cooling assembly (7) comprises a connecting block (71), an air delivery pipeline (72) and an air nozzle (73); the connecting block (71) is movably arranged on the mounting frame (5); the air nozzle (73) is arranged through the connecting block (71); the air delivery pipeline (72) is fixedly connected to the air nozzle (73); and the connecting block (71) is provided with a locking assembly (9) for locking the position of the connecting block (71).

4. The device for welding the inner and outer shells of a barbecue grill according to claim 3, characterized in that: The locking assembly (9) comprises a threaded rod (91), an abutment sheet (92), a hand wheel (93) and a friction block (94); one end of the threaded rod (91) is threadedly inserted into the connecting block (71); the abutment sheet (92) is rotatably connected to one end of the threaded rod (91) inserted into the connecting block (71); a clearance cavity (10) is provided in the connecting block (71); the abutment sheet (92) is located in the clearance cavity (10) and the circumferential side wall of the abutment sheet (92) is in sliding contact with the wall of the clearance cavity (10); the hand wheel (93) is provided at one end of the threaded rod (91) away from the abutment sheet (92); the friction block (94) is sleeved on the circumferential periphery of the threaded rod (91), and the friction block (94) is located between the connecting block (71) and the hand wheel (93).

5. The device for welding the inner and outer shells of a barbecue grill according to claim 1, characterized in that: The rotary discharge assembly (3) comprises a rotary cylinder (31) and a rotary disk (32); the rotary cylinder (31) is embedded in the fixed base (1); the rotary disk (32) is arranged at the output end of the rotary cylinder (31); the rotary disk (32) is located inside the placement cylinder (2); and the circumferential side wall of the rotary disk (32) is slidably fitted with the circumferential inner wall of the placement cylinder (2).

6. The device for welding the inner and outer shells of a barbecue grill according to claim 5, characterized in that: The rotating disk (32) is provided with an ejection mechanism and a positioning assembly (15), wherein the ejection mechanism is used to eject the inner shell and the outer shell out of the placement cylinder (2), and the positioning assembly (15) is used to clamp and position the outer shell in cooperation with the ejection mechanism.

7. The device for welding the inner and outer shells of a barbecue grill according to claim 6, characterized in that: The ejection mechanism comprises a telescopic sleeve (11), the telescopic sleeve (11) being arranged on the rotating disk (32), an ejection plate (12) being arranged at the top end of the telescopic sleeve (11), and a driving component (13) for driving the telescopic sleeve (11) to extend and retract being arranged inside the telescopic sleeve (11).

8. The device for welding the inner and outer shells of a barbecue grill according to claim 7, characterized in that: The driving assembly (13) comprises a driving motor (131), a first screw rod (132), a second screw rod (133) and a threaded sleeve (134); the driving motor (131) is fixedly arranged on the inner bottom wall of the telescopic sleeve (11); the first screw rod (132) is connected to the output end of the driving motor (131) and is vertically arranged; the threaded sleeve (134) is arranged on the inner top wall of the telescopic sleeve (11), and the opening of the threaded sleeve (134) is arranged downward; the second screw rod (133) is vertically arranged and the top end of the second screw rod (133) is arranged inside the threaded sleeve (134); a threaded hole (14) is vertically arranged on the bottom surface of the second screw rod (133), and the top end of the first screw rod (132) is arranged in the threaded hole (14).

9. The device for welding the inner and outer shells of a barbecue grill according to claim 7, characterized in that: The positioning assembly (15) comprises a positioning plate (151), a first connecting rod (152), a movable block (153) and a second connecting rod (154); a plurality of movable tracks (16) are arranged in a circular array on the top surface of the rotating disk (32); the bottom of the positioning plate (151) is clamped in the movable track (16); the movable block (153) is movably arranged in the movable track (16); one end of the first connecting rod (152) is connected to the positioning plate (151), and the other end is connected to the movable block (153); one end of the second connecting rod (154) is hinged to the movable block (153), and the other end is hinged to the bottom surface of the ejection plate (12).

10. The combined welding device for the inner and outer shells of a barbecue grill according to claim 9, characterized in that: A flexible gasket (17) is provided on the surface of the positioning plate (151) facing the ejection plate (12); and a roller (18) is rotatably provided on the side wall of the movable block (153).

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