Automatic welding device for steel door leaf

Abstract

The invention relates to the technical field of door leaf welding, in particular to an automatic welding device for a steel door leaf, which comprises a welding gun, a door leaf body, an inner door plate, an embedding groove, a positioning framework and a longitudinal framework, and further comprises a base arranged below the door leaf body, a workbench used for placing the door leaf body is arranged between the base and the door leaf body. According to the automatic welding device for the steel door leaf, the reversing assembly achieves automatic sliding and reversing of the supporting plate through cooperative work of the guiding piece, the driving piece, the longitudinal piece and the rotating piece, manual intervention is not needed, the production efficiency is improved, the stability and accuracy of movement of the supporting plate are guaranteed through the design of a guiding groove and a limiting groove, and the production efficiency is improved. Longitudinal movement and half-circle rotation of the supporting plate are achieved through the arrangement of the longitudinal tooth groove and the idling groove, different requirements in the welding process are met, and accurate control over the movement track of the supporting plate is achieved through meshing of a longitudinal gear in the longitudinal piece and the longitudinal tooth groove and meshing of a bevel gear in the rotating piece and the rotating tooth groove.

Description

Technical Field

[0001] The invention relates to the technical field of door leaf welding, and in particular to an automatic welding device for a steel door leaf. Background Art

[0002] Steel door panels are made primarily of steel and fall under the category of metal doors and windows. They are widely used indoors and outdoors in industrial and civil buildings. Their structure typically includes a steel profile or sheet metal door frame, filling materials such as honeycomb paper, fireproof rock wool, and aluminum honeycomb, as well as a surface coating layer, along with appropriate hardware accessories. The welding quality of steel door panels directly affects their safety and service life. Traditional manual welding methods typically use gas shielded welding or arc welding to connect and secure steel profiles or sheets.

[0003] However, in actual use, we found that when the workers welded the door leaf frame, due to the wide door leaf, the workers could not directly weld all the welding points. After welding one point, they needed to move the door leaf according to the position of the welding point. This method would lead to low welding efficiency, and in the process of welding and moving at the same time, it would easily cause uneven welding, and would also bring operational inconvenience and safety hazards to the workers. For this reason, we proposed an automatic welding device for steel door leaves. Summary of the Invention

[0004] A technical problem to be solved by this application is: how to achieve automatic positioning of the door leaf and convenience of door leaf movement when the staff are welding the door leaf frame, improve welding efficiency, ensure welding uniformity, and reduce operational inconvenience and safety hazards.

[0005] To solve the above technical problems, the present invention provides an automatic welding device for steel door panels, including a welding gun, a door panel body, an inner door panel, an inlay groove, a positioning frame, and a longitudinal frame, and further includes:

[0006] A base is provided below the door leaf body, and a workbench for placing the door leaf body is provided between the base and the door leaf body;

[0007] A support plate is arranged at the bottom of the workbench and is slidably arranged on the top of the base;

[0008] A plurality of positioning plates are provided, and the plurality of positioning plates are all provided above the workbench and located in the inlay groove, and the plurality of positioning plates are used to squeeze the door leaf body, so that the door leaf body is fixed on the top of the workbench and centered on the top of the workbench body;

[0009] A reversing assembly is provided in the base, and is used to drive the support plate to slide to one end of the base and return after rotating half a circle;

[0010] A positioning assembly is arranged above the workbench, and the positioning assembly is used to push the multiple positioning plates to expand, driving the multiple positioning plates to squeeze the door leaf body through the inlay groove, driving the door leaf body to be fixed on the top of the workbench.

[0011] In some embodiments, the reversing assembly includes a guide member arranged in the base for guiding the movement trajectory of the pallet, a driving member is arranged in the base, and the driving member is used to generate the power required for the movement of the pallet, a longitudinal member is arranged in the base, and the longitudinal movement of the pallet is controlled by the longitudinal member, and a rotating member is arranged in the base, and the rotating member is used to drive the pallet to rotate half a circle after reaching one end of the base.

[0012] In some embodiments, the guide member includes a guide groove opened on the base, the support plate is slidably arranged in the guide groove, a limiting groove is opened in the base, the end of the limiting groove away from the support plate is circular, and a cavity is opened in the base.

[0013] In some embodiments, the driving member includes a driving plate arranged at the bottom of the support plate, the driving plate is a polygon, and the number of its sides is an even number, the two sides of the driving plate are attached and slidably arranged in the limit groove, a placement plate is provided at the bottom of the driving plate, and the placement plate is located in the cavity, a driving motor is provided in the placement plate, and a driving shaft is provided at the output end of the driving motor.

[0014] In some embodiments, the longitudinal member includes a longitudinal gear arranged on the outside of the drive shaft, two sets of longitudinal tooth grooves are provided in the base, and both sets of the longitudinal tooth grooves are engaged with the longitudinal gear, an idle groove is provided in the base, and the idle groove is arc-shaped, and its two ends are respectively located at the end of the two sets of longitudinal tooth grooves away from the workbench.

[0015] In some embodiments, the rotating member includes a bevel gear arranged on the outside of the drive shaft, the number of external teeth of the bevel gear is the same as the number of external teeth of the longitudinal gear, a fixed plate is provided in the cavity, and the fixed plate is a flat-top cone, and a plurality of rotating tooth grooves are opened on the side of the fixed plate close to the idle groove, and the bevel gear is meshed with the plurality of rotating tooth grooves.

[0016] In some embodiments, the positioning assembly includes a power part arranged under the workbench, which generates power by using the power part to drive the multiple positioning plates to slide above the workbench, and a synchronization part is provided above the workbench, which drives the multiple positioning plates to slide synchronously on the workbench, and an extrusion part is provided in each of the multiple positioning plates, which uses the extrusion part to fix the positioning frame and the inner door panel in the door leaf body.

[0017] In some embodiments, the power component includes a motor bracket arranged at the bottom of the workbench, a power motor is arranged on the motor bracket, and a power plate is arranged at the output end of the power motor.

[0018] In some embodiments, the synchronizing parts include a plurality of synchronizing plates rotatably arranged on the top of the power plate through a rotating shaft, and a synchronizing rod is rotatably arranged on one end of the plurality of synchronizing plates away from the power plate. A plurality of sliding grooves are opened on the workbench, and the plurality of synchronizing plates are slidably arranged in the corresponding sliding grooves, and the plurality of positioning plates are rotatably arranged on the top of the corresponding synchronizing rods.

[0019] In some embodiments, the extrusion member includes an extrusion groove opened in the positioning plate, an extrusion shaft is rotatably arranged in the positioning plate, an extrusion torsion spring is arranged on the outside of the extrusion shaft, the other end of the extrusion torsion spring is arranged in the positioning plate, a transmission plate is arranged on the outside of the extrusion shaft, and the transmission plate has the shape of the number "7". The transmission plate is rotatably arranged in the extrusion groove through the extrusion shaft, a transmission groove is opened on the top of the transmission plate, an extrusion rod is rotatably and slidingly arranged in the transmission groove, an extrusion plate is rotatably arranged on the outside of the extrusion rod, the extrusion plate is slidably arranged in the positioning plate, and a rubber plate is arranged at the bottom of the extrusion plate.

[0020] The present invention has at least the following beneficial effects:

[0021] 1. The reversing assembly realizes automatic sliding and reversing of the pallet through the coordinated work of the guide, drive, longitudinal and rotating parts, without the need for manual intervention, thus improving production efficiency. The design of the guide groove and limit groove ensures the stability and accuracy of the pallet movement. The setting of the longitudinal tooth groove and idle groove realizes the longitudinal movement and half-turn rotation of the pallet, meeting the different needs of the welding process. The meshing of the longitudinal gear and the longitudinal tooth groove in the longitudinal part, and the meshing of the bevel gear and the rotating tooth groove in the rotating part realize the precise control of the motion trajectory of the pallet.

[0022] 2. Through the cooperation of the positioning plate and the inlay groove, the door leaf body can be accurately fixed and centered on the top of the workbench, ensuring stability and accuracy during the welding process. The positioning assembly uses power parts and synchronous parts to push multiple positioning plates to slide synchronously, further enhancing the fixing effect of the door leaf body and reducing offset and error during the welding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the overall structure of the present invention;

[0024] Figure 2 This is a schematic diagram of the inlay groove structure of the present invention;

[0025] Figure 3 This is a schematic diagram of the positioning skeleton structure of the present invention;

[0026] Figure 4 It is a side sectional schematic diagram of the workbench structure of the present invention;

[0027] Figure 5 This is a partial structural diagram of the positioning component of the present invention;

[0028] Figure 6 This is a schematic diagram of the sliding groove structure of the present invention;

[0029] Figure 7 This is a partial structural diagram of an extrusion part of the present invention;

[0030] Figure 8 It is a side cross-sectional schematic diagram of the positioning plate structure of the present invention;

[0031] Figure 9 This is a schematic diagram of the support plate structure of the present invention;

[0032] Figure 10 It is a side sectional schematic diagram of the base structure of the present invention;

[0033] Figure 11 This is a schematic diagram of the guide structure of the present invention;

[0034] Figure 12 This is a schematic diagram of the structure of the driving member of the present invention;

[0035] Figure 13 It is a schematic diagram of the idling tank structure of the present invention.

[0036] In the figure: 1. welding gun; 2. door leaf body; 3. inner door panel; 4. inlay groove; 5. positioning frame; 6. longitudinal frame; 7. base; 8. workbench; 9. support plate; 10. positioning plate; 11. reversing assembly; 12. positioning assembly; 13. guide member; 131. guide groove; 132. limit groove; 133. cavity; 14. driving member; 141. driving plate; 142. placement plate; 143. driving motor; 144. driving shaft; 15. longitudinal member; 151. longitudinal gear; 152. longitudinal tooth groove; 153. Idle groove; 16. Rotating member; 161. Bevel gear; 162. Fixed plate; 163. Rotating tooth groove; 17. Power member; 171. Motor bracket; 172. Power motor; 173. Power plate; 18. Synchronizing member; 181. Synchronizing plate; 182. Synchronizing rod; 183. Sliding groove; 19. Extrusion member; 191. Extrusion groove; 192. Extrusion shaft; 193. Extrusion torsion spring; 194. Transmission plate; 195. Transmission groove; 196. Extrusion rod; 197. Extrusion plate; 198. Rubber plate. DETAILED DESCRIPTION

[0037] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0038] Example 1: Please refer to Figure 1-13 The present invention provides a technical solution: an automatic welding device for a steel door leaf, comprising a welding gun 1, a door leaf body 2, an inner door panel 3, an inlay groove 4, a positioning frame 5, and a longitudinal frame 6, and further comprising:

[0039] A base 7 is provided below the door body 2, and a workbench 8 for placing the door body 2 is provided between the base 7 and the door body 2;

[0040] A support plate 9 is provided at the bottom of the workbench 8 and is slidably provided on the top of the base 7;

[0041] A plurality of positioning plates 10 are provided, and the plurality of positioning plates 10 are all provided above the workbench 8 and located in the inlay groove 4. The plurality of positioning plates 10 are used to squeeze the door leaf body 2, driving the door leaf body 2 to be fixed on the top of the workbench 8 and centered on the top of the workbench 8 body;

[0042] The reversing assembly 11 is arranged in the base 7, and the reversing assembly 11 is used to drive the support plate 9 to slide to one end of the base 7 and return after rotating half a circle;

[0043] The positioning assembly 12 is arranged above the workbench 8. The positioning assembly 12 is used to push the multiple positioning plates 10 to expand, driving the multiple positioning plates 10 to squeeze the door leaf body 2 through the inlay groove 4, driving the door leaf body 2 to be fixed on the top of the workbench 8.

[0044] The reversing assembly 11 includes a guide member 13 arranged in the base 7 for guiding the movement trajectory of the pallet 9. A driving member 14 is provided in the base 7, and the driving member 14 is used to generate the power required for the movement of the pallet 9. A longitudinal member 15 is provided in the base 7, and the longitudinal member 15 is used to control the longitudinal movement of the pallet 9. A rotating member 16 is provided in the base 7, and the rotating member 16 is used to drive the pallet 9 to rotate half a circle after reaching one end of the base 7.

[0045] The guide member 13 includes a guide groove 131 provided on the base 7, and the support plate 9 is slidably arranged in the guide groove 131. A limit groove 132 is provided in the base 7, and the end of the limit groove 132 away from the support plate 9 is circular. A cavity 133 is provided in the base 7. When the longitudinal gear 151 engages with the longitudinal tooth groove 152, the driving plate 141 will closely contact the two side walls of the limit groove 132 through the planes on both sides thereof, so that the support plate 9 maintains horizontal and stable operation, thereby ensuring that the door leaf body 2 above the workbench 8 will not deviate during the movement process. When the longitudinal gear 151 enters the idle groove 153 and the bevel gear 161 engages with the rotating tooth groove 163, the driving plate 141 enters the circular area of ​​the limit groove 132. At this time, the outer corner of the driving plate 141 will fit with the circular inner wall of the inner wall of the limit groove 132, ensuring that the drive motor 143 and the support plate 9 remain stable during rotation, avoiding welding errors caused by vibration.

[0046] The driving member 14 includes a driving plate 141 arranged at the bottom of the supporting plate 9. The driving plate 141 is polygonal and has an even number of sides. Both sides of the driving plate 141 are fitted and slidably arranged in the limiting groove 132. A placement plate 142 is provided at the bottom of the driving plate 141, and the placement plate 142 is located in the cavity 133. A driving motor 143 is provided in the placement plate 142. A driving shaft 144 is provided at the output end of the driving motor 143. When the driving motor 143 is started, the driving motor 143 will drive the driving shaft 144 at its output end to rotate. When the driving shaft 144 rotates, the driving shaft 144 will drive the longitudinal gear 151 on its outer side to rotate. When the longitudinal gear 151 rotates, the longitudinal gear 151 will The driving motor 143 is driven to move under the action of multiple longitudinal tooth grooves in the base 7. At this time, the placement plate 142 outside the driving motor 143 and the driving plate 141 on the top of the placement plate 142 will move together under the action of the longitudinal gear 151. The limiting groove 132 opened in the base 7 can limit the displacement trajectory of the driving plate 141 during its movement, ensuring that the driving motor 143 and the driving plate 141 move smoothly in the limiting groove 132. Its function is to use the driving motor 143 to generate power to drive the workbench 8 and the support plate 9 to move to the predetermined position together, and ensure the accuracy of the moving trajectory through the limiting groove 132 to avoid offset, thereby realizing precise positioning and movement of the door leaf body 2.

[0047] The longitudinal member 15 includes a longitudinal gear 151 disposed on the outside of the drive shaft 144. Two sets of longitudinal tooth grooves 152 are provided in the base 7, and both sets of longitudinal tooth grooves 152 are engaged with the longitudinal gear 151. An idle groove 153 is provided in the base 7, and the idle groove 153 is arc-shaped, with its two ends respectively located at the end of the two sets of longitudinal tooth grooves 152 away from the workbench 8. When the drive shaft 144 rotates, the drive shaft 144 will drive the longitudinal gear 151 on its outside to rotate. When the longitudinal gear 151 rotates, the longitudinal gear 151 will rotate in the multiple longitudinal tooth grooves in the base 7. Under the action of , the drive motor 143 is driven to move until the longitudinal gear 151 rotates to the idle groove 153. At this time, the longitudinal gear 151 continues to rotate but does not engage with any set of longitudinal tooth grooves 152. Its function is to ensure that the drive motor 143 moves smoothly along the predetermined path through the engagement of the longitudinal gear 151 with the longitudinal tooth grooves 152. At the same time, the design of the idle groove 153 enables the longitudinal gear 151 to rotate without resistance at a specific position, further optimizing the operating efficiency of the drive motor 143 and ensuring the stability and accuracy of the rotation of the support plate 9.

[0048] The rotating member 16 includes a bevel gear 161 arranged on the outside of the drive shaft 144. The number of external teeth of the bevel gear 161 is the same as the number of external teeth of the longitudinal gear 151. A fixing plate 162 is provided in the cavity 133, and the fixing plate 162 is flat-topped and conical. A plurality of rotating tooth grooves 163 are opened on the side of the fixing plate 162 close to the idle groove 153, and the bevel gear 161 is meshed with the plurality of rotating tooth grooves 163. When the drive shaft 144 rotates, the bevel gear 161 arranged on the outside of the drive shaft 144 will rotate with the drive shaft 144. When the longitudinal gear 151 reaches the idle groove 153, although the longitudinal gear 151 continues to rotate with the drive shaft 144, it has been out of engagement with the longitudinal tooth groove 152, and the longitudinal gear 151 arranged on the drive shaft 144 The outer bevel gear 161 will mesh with the rotating tooth groove 163 on the fixed plate 162. When the bevel gear 161 meshes with multiple rotating tooth grooves 163, the rotation of the bevel gear 161 will drive the drive motor 143 to rotate around the axis of the support plate 9 through the drive shaft 144, thereby realizing the overall rotation of the drive motor 143 and the support plate 9, so that the unwelded side of the door leaf body 2 above the workbench 8 is turned to the staff, facilitating their subsequent welding operations. Its function is to ensure the stability and consistency of the rotation of the support plate 9 through the precise engagement of the bevel gear 161 and the rotating tooth groove 163, avoid welding errors caused by offset, further improve the quality and efficiency of the welding of the door leaf body 2, and ensure the firmness and aesthetics of the overall structure.

[0049] The positioning assembly 12 includes a power part 17 arranged under the workbench 8, which generates power by using the power part 17 to drive multiple positioning plates 10 to slide above the workbench 8. A synchronization part 18 is provided above the workbench 8, which drives multiple positioning plates 10 to slide synchronously on the workbench 8. Extrusion parts 19 are provided in the multiple positioning plates 10, which use the extrusion parts 19 to fix the positioning frame 5 and the inner door panel 3 in the door leaf body 2.

[0050] The power part 17 includes a motor bracket 171 arranged at the bottom of the workbench 8, and a power motor 172 is arranged on the motor bracket 171. A power plate 173 is arranged at the output end of the power motor 172. When the power motor 172 is started, the power motor 172 will drive the power plate 173 at its output end to rotate. The motor bracket 171 arranged at the bottom of the workbench 8 can ensure that the power motor 172 remains stable during operation. Its function is to provide continuous and uniform power support for the movement of multiple positioning plates 10.

[0051] The synchronous member 18 includes a plurality of synchronous plates 181 which are rotatably arranged on the top of the power plate 173 through a rotating shaft. A synchronous rod 182 is rotatably arranged on one end of the plurality of synchronous plates 181 away from the power plate 173. A plurality of sliding grooves 183 are provided on the workbench 8. The plurality of synchronous plates 181 are slidably arranged in the corresponding sliding grooves 183. The plurality of positioning plates 10 are rotatably arranged on the top of the corresponding synchronous rod 182. When the power plate 173 rotates under the action of the power motor 172, the plurality of synchronous plates 181 which are rotated on the power plate 173 through the rotating shaft also rotate accordingly, so that the plurality of synchronous plates 181 drive the corresponding synchronous rod 182 to move. When the plurality of synchronous rods 182 are When the synchronous plate 181 moves under the action of the synchronous rod 182, multiple synchronous rods 182 will slide in the sliding groove 183, and then push the corresponding positioning plates 10 to slide synchronously, so that the multiple positioning plates 10 expand and push the door leaf body 2 through the inlay groove 4, driving the multiple positioning plates 10 to correct the position of the door leaf body 2 while fixing the door leaf body 2 on the workbench 8 to ensure the stability of the door leaf body 2 during the welding process. Its function is to achieve efficient synchronous movement of the positioning plate 10 through the precise cooperation between the synchronous rod 182 and the sliding groove 183, ensure that the door leaf body 2 does not move during the welding process, improve the welding quality and accuracy, and ensure the firmness and safety of the overall structure.

[0052] The extrusion member 19 includes an extrusion groove 191 provided in the positioning plate 10, an extrusion shaft 192 is rotatably provided in the positioning plate 10, an extrusion torsion spring 193 is provided on the outside of the extrusion shaft 192, and the other end of the extrusion torsion spring 193 is provided in the positioning plate 10, and a transmission plate 194 is provided on the outside of the extrusion shaft 192. The transmission plate 194 has the appearance of the number "7". The transmission plate 194 is rotatably provided in the extrusion groove 191 through the extrusion shaft 192. A transmission groove 195 is provided on the top of the transmission plate 194, and an extrusion rod 196 is rotatably and slidably provided in the transmission groove 195. An extrusion plate 197 is rotatably provided on the outside of the extrusion rod 196. The extrusion plate 197 is slidably provided in the positioning plate 10, and a rubber plate 198 is provided at the bottom of the extrusion plate 197. When the positioning plate 10 squeezes the door leaf body 2 through the inlay groove 4, the bottom end of the transmission plate 194 arranged in the extrusion groove 191 by the extrusion shaft 192 will first contact the door leaf body 2. As the positioning plate 10 continues to move, the transmission plate 1 94 will rotate in the extrusion groove 191 through the extrusion shaft 192. As it rotates, the transmission groove 195 on its top will generate pressure on the extrusion rod 196, causing the extrusion rod 196 to slide in the transmission groove 195 and drive the extrusion plate 197 on the outside of the extrusion rod 196 to move downward. When the extrusion plate 197 moves downward, the rubber plate 198 set at the bottom of the extrusion plate 197 will move downward with the extrusion plate 197. At this time, the extrusion plate 197 will squeeze the corresponding positioning frame 5 through the rubber plate 198, so that the positioning frame 5 is fixed in the door leaf body 2, thereby ensuring that the positioning frame 5 is tightly combined with the door leaf body 2 and improving the welding firmness. Its function is to achieve precise fixation of the positioning frame 5 through the coordinated action of the extrusion plate 197 and the rubber plate 198, further strengthen the structure of the door leaf body 2, ensure the stable cooperation of each component during the welding process, improve the overall welding effect, and ensure the durability and safety of the door leaf during use.

[0053] During use, when the staff needs to weld the positioning frame 5 and the longitudinal frame 6 into the door body 2, first place the door body 2 on the workbench 8, and ensure that the multiple positioning plates 10 are located in the inlay grooves 4 on the door body 2, and then arrange the positioning frame 5 and the longitudinal frame 6 in the door body 2. After completing the above operations, start the power motor 172, the power motor 172 will drive the power plate 173 at its output end to rotate, and the motor bracket 171 set at the bottom of the workbench 8 can ensure that the power motor 172 remains stable during operation. When the power plate 173 rotates under the action of the power motor 172, the power plate 173 rotates. The multiple synchronization plates 181 arranged on the power plate 173 rotate by the rotation of the rotating shaft, so that the multiple synchronization plates 181 drive the corresponding synchronization rods 182 to move. When the multiple synchronization rods 182 move under the action of the synchronization plates 181, the multiple synchronization rods 182 will slide in the sliding grooves 183, thereby pushing the corresponding positioning plates 10 to slide synchronously, so that the multiple positioning plates 10 expand and push the door leaf body 2 through the inlay grooves 4, driving the multiple positioning plates 10 to correct the position of the door leaf body 2 while fixing the door leaf body 2 on the workbench 8, ensuring the stability of the door leaf body 2 during the welding process;

[0054] When the positioning plate 10 is pressed against the door leaf body 2 through the inlay groove 4, the bottom end of the transmission plate 194 arranged in the extrusion groove 191 by the extrusion shaft 192 will first contact the door leaf body 2. As the positioning plate 10 continues to move, the transmission plate 194 will rotate in the extrusion groove 191 through the extrusion shaft 192. As it rotates, the transmission groove 195 at its top will generate pressure on the extrusion rod 196, so that the extrusion rod 196 slides in the transmission groove 195 and drives the extrusion plate 197 outside the extrusion rod 196 to move downward. When the extrusion plate 197 moves downward, the rubber plate 198 arranged at the bottom of the extrusion plate 197 will move downward with the extrusion plate 197. At this time, the extrusion plate 197 will squeeze the corresponding positioning frame 5 through the rubber plate 198, so that the positioning frame 5 is fixed in the door leaf body 2, thereby ensuring that the positioning frame 5 is tightly combined with the door leaf body 2 and improving the welding firmness.

[0055] After completing the fixation of the positioning frame 5, the staff can use the welding gun 1 to weld the positioning frame 5 and the longitudinal frame 6. During the welding process of the welding gun 1, the door leaf body 2 remains stable under the correction and fixation of the positioning plate 10 to ensure that the welding points are accurate. After the staff has welded the positioning frame 5 and the longitudinal frame 6 on the side close to the staff, it is necessary to weld the positioning frame 5 and the longitudinal frame 6 on the other side. Start the drive motor 143, the drive motor 143 will drive the drive shaft 144 at its output end to rotate. When the drive shaft 144 rotates, the drive shaft 144 will drive the longitudinal gear 151 on its outer side to rotate. When the longitudinal gear 151 rotates, the longitudinal gear 151 will The driving motor 143 is driven to move under the action of the multiple longitudinal tooth grooves in the base 7. At this time, the placement plate 142 outside the driving motor 143 and the driving plate 141 on the top of the placement plate 142 will move together under the action of the longitudinal gear 151. The limiting groove 132 provided in the base 7 can limit the displacement trajectory of the driving plate 141 during its movement, ensuring that the driving motor 143 and the driving plate 141 move smoothly in the limiting groove 132 until the longitudinal gear 151 rotates to the idle groove 153. At this time, the longitudinal gear 151 continues to rotate but does not mesh with any set of longitudinal tooth grooves 152. When the driving shaft 144 rotates, the bevel gear 161 provided on the outside of the driving shaft 144 It will rotate with the drive shaft 144. When the longitudinal gear 151 reaches the idle groove 153, although the longitudinal gear 151 continues to rotate with the drive shaft 144, it has been out of the meshing state of the longitudinal tooth groove 152, and the bevel gear 161 arranged on the outside of the drive shaft 144 will mesh with the rotating tooth groove 163 on the fixed plate 162. When the bevel gear 161 is engaged with multiple rotating tooth grooves 163, the rotation of the bevel gear 161 will drive the drive motor 143 to rotate around the axis of the support plate 9 through the drive shaft 144, thereby realizing the overall rotation of the drive motor 143 and the support plate 9, so that the unwelded side of the door leaf body 2 above the workbench 8 is turned to the staff, which is convenient for them to work. In the subsequent welding operation, as the bevel gear 161 continues to rotate, the drive motor 143 and the support plate 9 rotate to the predetermined position as a whole. At this time, the longitudinal gear 151 is re-engaged with the longitudinal tooth groove 152, and the bevel gear 161 is disengaged from the rotating tooth groove 163 at the moment when the longitudinal gear 151 is engaged with the longitudinal tooth groove 152. As the drive motor 143 continues to rotate, the longitudinal gear 151 continues to drive the drive motor 143 and the support plate 9 to move smoothly through another set of longitudinal tooth grooves 152, thereby returning the door leaf body 2 to the initial position for easy operation by the staff, and making the positioning frame 5 and the longitudinal frame 6 on the unwelded side aligned with the welding area of ​​the staff again, ensuring a consistent and efficient welding process.

[0056] When the longitudinal gear 151 is meshed with the longitudinal tooth groove 152, the driving plate 141 will be in close contact with the two side walls of the limiting groove 132 through the planes on both sides thereof, so that the support plate 9 maintains horizontal and stable operation, thereby ensuring that the door leaf body 2 above the workbench 8 will not deviate during the movement process. When the longitudinal gear 151 enters the idle groove 153 and the bevel gear 161 is meshed with the rotating tooth groove 163, the driving plate 141 enters the circular area of ​​the limiting groove 132. At this time, the outer corner of the driving plate 141 will fit with the circular inner wall of the inner wall of the limiting groove 132, ensuring that the drive motor 143 and the support plate 9 remain stable during the rotation process, avoiding welding errors caused by vibration.

[0057] After the door leaf body 2 is accurately reset, the staff can quickly start the welding operation on the other side. After completing the welding of the positioning frame 5 and the longitudinal frame 6, start the power motor 172 and drive it to reverse, so that the multiple positioning plates 10 and the multiple extrusion plates 197 are respectively separated from the extrusion of the door leaf body 2 and the positioning frame 5, and then cover the inner door panel 3 on the door leaf body 2, and then start the power motor 172 again to make the multiple positioning plates 10 and the extrusion plates 197 fit the inner door panel 3 again to ensure that it is tightly fixed, and then perform careful edge welding. After completing the welding of one side of the inner door panel 3, repeat the above steps, start the drive motor 143, adjust the door leaf body 2 to the other side, so that the unwelded edge of the inner door panel 3 is aligned with the welding area, and continue to perform precise welding until all welding points are firm to ensure that the overall structure is stable and reliable, and finally complete the complete welding operation of the door leaf body 2.

[0058] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0059] While the embodiments of the present invention have been shown and described, it will be apparent to those skilled in the art that various changes, modifications, substitutions, and alterations can be made to the embodiments without departing from the principles and spirit of the invention.

Claims

1. An automatic welding device for a steel door leaf, comprising a welding gun (1), a door leaf body (2), an inner door panel (3), an inlay groove (4), a positioning frame (5) and a longitudinal frame (6), characterized in that: Also included are: A base (7) is arranged below the door leaf body (2), and a workbench (8) for placing the door leaf body (2) is provided between the base (7) and the door leaf body (2); A support plate (9) is arranged at the bottom of the workbench (8), and the support plate (9) is slidably arranged on the top of the base (7); A plurality of positioning plates (10) are provided, and the plurality of positioning plates (10) are all provided above the workbench (8) and located in the inlay groove (4). The plurality of positioning plates (10) are used to squeeze the door leaf body (2), so that the door leaf body (2) is fixed on the top of the workbench (8) and centered on the top of the workbench (8) body. A reversing assembly (11) is arranged in the base (7), and is used to drive the support plate (9) to slide to one end of the base (7) and return after rotating half a circle; A positioning assembly (12) is arranged above the workbench (8), and the positioning assembly (12) is used to push the plurality of positioning plates (10) to expand, driving the plurality of positioning plates (10) to squeeze the door leaf body (2) through the inlay groove (4), driving the door leaf body (2) to be fixed on the top of the workbench (8).

2. The automatic welding device for steel door leaf according to claim 1, characterized in that: The reversing assembly (11) comprises a guide member (13) arranged in the base (7) for guiding the movement trajectory of the support plate (9); a driving member (14) is arranged in the base (7), and the driving member (14) is used to generate the power required for the movement of the support plate (9); a longitudinal member (15) is arranged in the base (7), and the longitudinal movement of the support plate (9) is controlled by the longitudinal member (15); a rotating member (16) is arranged in the base (7), and the rotating member (16) is used to drive the support plate (9) to rotate half a circle after reaching one end of the base (7).

3. The automatic welding device for steel door leaf according to claim 2, characterized in that: The guide member (13) includes a guide groove (131) provided on the base (7), the support plate (9) is slidably arranged in the guide groove (131), a limiting groove (132) is provided in the base (7), the end of the limiting groove (132) away from the support plate (9) is circular, and a cavity (133) is provided in the base (7).

4. The automatic welding device for steel door leaf according to claim 3, characterized in that: The driving member (14) includes a driving plate (141) arranged at the bottom of the supporting plate (9); the driving plate (141) is polygonal and has an even number of sides; both sides of the driving plate (141) are attached to and slidably arranged in the limiting groove (132); a placement plate (142) is provided at the bottom of the driving plate (141), and the placement plate (142) is located in the cavity (133); a driving motor (143) is provided in the placement plate (142); and a driving shaft (144) is provided at the output end of the driving motor (143).

5. The automatic welding device for steel door leaf according to claim 4, characterized in that: The longitudinal member (15) includes a longitudinal gear (151) arranged outside the drive shaft (144); two groups of longitudinal tooth grooves (152) are provided in the base (7), and the two groups of longitudinal tooth grooves (152) are meshed with the longitudinal gear (151); an idle groove (153) is provided in the base (7), and the idle groove (153) is arc-shaped, with its two ends respectively located at the ends of the two groups of longitudinal tooth grooves (152) away from the workbench (8).

6. The automatic welding device for steel door leaf according to claim 5, characterized in that: The rotating member (16) includes a bevel gear (161) arranged on the outside of the driving shaft (144), the number of external teeth of the bevel gear (161) is the same as the number of external teeth of the longitudinal gear (151), a fixed plate (162) is arranged in the cavity (133), and the fixed plate (162) is flat-topped cone-shaped, and a plurality of rotating tooth grooves (163) are opened on a side of the fixed plate (162) close to the idle groove (153), and the bevel gear (161) is meshed with the plurality of rotating tooth grooves (163).

7. The automatic welding device for steel door leaf according to claim 1, characterized in that: The positioning assembly (12) includes a power member (17) arranged below the workbench (8), and the power member (17) is used to generate power to drive the plurality of positioning plates (10) to slide above the workbench (8). A synchronization member (18) is provided above the workbench (8), and the synchronization member (18) is used to drive the plurality of positioning plates (10) to slide synchronously on the workbench (8). An extrusion member (19) is provided in each of the plurality of positioning plates (10), and the extrusion member (19) is used to fix the positioning frame (5) and the inner door panel (3) in the door leaf body (2).

8. The automatic welding device for steel door leaf according to claim 7, characterized in that: The power member (17) comprises a motor bracket (171) arranged at the bottom of the workbench (8); a power motor (172) is arranged on the motor bracket (171); and a power plate (173) is arranged at the output end of the power motor (172).

9. The automatic welding device for steel door leaf according to claim 8, characterized in that: The synchronous member (18) includes a plurality of synchronous plates (181) rotatably arranged on the top of the power plate (173) through a rotating shaft, and a synchronous rod (182) is rotatably arranged at one end of the plurality of synchronous plates (181) away from the power plate (173). A plurality of sliding grooves (183) are opened on the workbench (8), and the plurality of synchronous plates (181) are slidably arranged in the corresponding sliding grooves (183). The plurality of positioning plates (10) are rotatably arranged on the top of the corresponding synchronous rod (182).

10. The automatic welding device for steel door leaf according to claim 9, characterized in that: The extrusion member (19) includes an extrusion groove (191) provided in the positioning plate (10), an extrusion shaft (192) is rotatably provided in the positioning plate (10), an extrusion torsion spring (193) is provided on the outside of the extrusion shaft (192), the other end of the extrusion torsion spring (193) is provided in the positioning plate (10), a transmission plate (194) is provided on the outside of the extrusion shaft (192), and the transmission plate (194) has an appearance in the shape of a number "7". 94) is rotatably arranged in the extrusion groove (191) through the extrusion shaft (192), a transmission groove (195) is provided on the top of the transmission plate (194), an extrusion rod (196) is rotatably and slidably arranged in the transmission groove (195), an extrusion plate (197) is rotatably arranged on the outside of the extrusion rod (196), the extrusion plate (197) is slidably arranged in the positioning plate (10), and a rubber plate (198) is provided at the bottom of the extrusion plate (197).

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