Electric resistance welding production line
By designing a resistance welding production line, the welding is decomposed into multiple processes, which solves the existing problems of low efficiency, high labor intensity and unstable quality of street-stall welding, and achieves efficient and stable welding production.
Patent Information
- Application Number
- CN202421643098.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-12
- Publication Date
- 2025-06-24
- Estimated Expiration
- 2034-07-12
AI Technical Summary
The existing street-stall welding has low efficiency, high labor intensity, and risks of missing welding. The welding quality depends on the workers' technology and experience, and the consistency and stability of product quality cannot be guaranteed.
Design a resistance welding production line to decompose the welding into multiple processes. Workers are only responsible for part of the welding position. Through equipment such as front conveying roller frame, double-station welding table, resistance welding table, assembly welding table and rear conveying roller frame, automated and divided welding process is realized.
It reduces the labor intensity of workers, avoids missed welding, improves welding efficiency and product quality, and workers can master welding skills in specific parts more deeply and improve proficiency.
Smart Images
Figure CN223012129U_ABST
Abstract
Description
Technical Field
[0001] The utility model belongs to the technical field of welding production, and particularly relates to a resistance welding production line. Background Art
[0002] In the prior art, floor-type welding is widely adopted. A welding worker completes the welding of multiple processes of a single workpiece on a welding platform. In this welding mode, the welding efficiency is low and it is difficult to meet the needs of mass production. Moreover, in traditional floor-type welding, the welding worker needs to complete the whole welding alone, resulting in a relatively high labor intensity. There is also a possibility of missed welding. And the welding quality depends on the welding skills and experience of the welding worker, making it impossible to ensure the consistency and stability of product quality. Also, during the resistance welding process, it is necessary to contact the upper and lower surfaces of the electrode and the door panel. In traditional floor-type welding, it is difficult for workers to operate.
[0003] Therefore, the above problems need to be solved urgently. Content of the Utility Model
[0004] Purpose of the utility model: In order to overcome the above deficiencies, the utility model provides a resistance welding production line, which decomposes the welding into multiple processes. Workers only need to be responsible for some welding positions, which can reduce the labor intensity of workers, avoid missed welding, and improve the welding efficiency and product quality.
[0005] Technical solution: To achieve the above object, the utility model provides a resistance welding production line, which includes a front conveying roller rack and a double-station welding table. A resistance welding table is provided between the front conveying roller rack and the double-station welding table. A group welding table is provided on one side of the double-station welding table away from the resistance welding table, and a rear conveying roller rack is provided on one side of the group welding table away from the double-station welding table. The front conveying roller rack, the resistance welding table, the double-station welding table, the group welding table, and the rear conveying roller rack are arranged adjacent to each other in sequence. The resistance welding table includes a resistance welding bottom plate. A universal ball is provided on the top surface of the resistance welding bottom plate. The universal balls are fixedly arranged in an array on the top surface of the resistance welding bottom plate. The resistance welding bottom plate is provided with a through avoidance groove, and the resistance welding machine performs resistance welding on the product through the avoidance groove. During the welding process, the door panel to be welded is placed on the front conveying roller rack for preparation. The worker moves the door panel from the front conveying roller rack to the resistance welding table. The universal balls provided on the resistance welding table support the door panel, enabling the worker to easily adjust the direction of the door panel. The part to be welded is placed above the avoidance groove. The worker uses the resistance welding machine to perform resistance welding on the door panel. Then the worker moves the door panel after resistance welding to the double-station welding table, and the worker welds the door panel on the two stations provided on the double-station welding table respectively. Then the door panel is moved to the group welding table, and the hinge and the door panel are welded at the resistance welding station. Finally, the door panel is moved to the rear conveying roller rack. In the utility model, the welding of each part of the door panel is decomposed into multiple processes. The worker only needs to be responsible for some welding positions, reducing the labor intensity of the worker and avoiding the occurrence of missed welding. At the same time, the worker only needs to be responsible for some welding positions, enabling the worker to master the welding skills of this part more deeply, improving proficiency, improving welding efficiency, and improving welding quality. The universal balls provided on the resistance welding table can avoid manual handling by the worker and reduce the risk of the door panel being bumped. The resistance welding machine can perform resistance welding on the door panel through the avoidance groove, improving welding efficiency.
[0006] Further, in the above resistance welding production line, the double-station welding table includes a moving platform and a double-station frame. A guide rail is connected to the top surface of the double-station frame. The moving platform is slidably connected to the guide rail through a slider. There are two guide rails, and the two guide rails are arranged in parallel. A horizontal cylinder is connected to the top surface of the double-station frame, and the cylinder shaft of the horizontal cylinder is drivingly connected to the moving platform. The moving platform is arrayed with through holes, and a first universal ball table is provided below the moving platform. A universal ball corresponding to the through hole is connected to the top surface of the first universal ball table. A vertical cylinder is provided on the double-station frame, and the cylinder shaft of the vertical cylinder is drivingly connected to the first universal ball table. Before receiving the door panel, raise the first universal ball table so that the universal ball on the top surface of the first universal ball table is higher than the moving platform. Then move the door panel to the upper side of the moving platform to be supported by the universal ball. The worker adjusts the door panel to the welding position. Then lower the first universal ball table so that the universal ball is lower than the moving platform, and the door panel is supported and positioned by the moving platform. Then the worker welds the door panel. After welding is completed, the horizontal cylinder pushes the moving platform to the other side, raises the universal ball higher than the moving platform, and the worker responsible for the other process adjusts the position. Lower the universal ball lower than the moving platform, and the worker performs the welding of the other process. During the entire welding process, the worker does not need to carry, reducing the working intensity of the worker and improving the welding efficiency. When the universal ball is higher than the moving platform and the universal ball supports the door panel, the friction force on the door panel is small, and the worker can easily adjust the position of the door panel, reducing the working intensity of the worker and improving the working efficiency. When the universal ball is lower than the moving platform and the moving platform supports the door panel, the door panel is subject to a large friction force, so that the door panel does not shift during the welding process, ensuring the welding quality.
[0007] Further, in the above resistance welding production line, the first universal ball table is rectangular, and the first universal ball table is arranged in parallel on both sides of the guide rail. Four first universal ball tables are in a group, and two groups of first universal ball tables are arranged along the guide rail. Two groups of first universal ball tables are provided on the double-station welding table, and the worker can freely adjust the height of the first universal ball table on the station according to needs, avoiding interference with adjacent stations and improving the working efficiency.
[0008] Further, in the above resistance welding production line, the assembly welding table includes an assembly welding frame and a welding table. A second universal ball table is provided on the lower side of the welding table, and the universal balls on the top surface of the second universal ball table are correspondingly arranged with the through holes provided on the welding table. The second universal ball table is drivingly connected to the assembly welding frame through a cylinder. Lifting positioning tables are provided at both ends of the welding table. The lifting positioning tables are drivingly connected to the assembly welding frame through cylinders. The lifting positioning tables pass through the through grooves provided on the welding table, and the lifting positioning tables provide positioning for the workpieces to be welded. Lower the lifting positioning tables so that they are on the lower side of the welding table. Raise the second universal ball table. When the universal balls of the second universal ball table are higher than the welding table, move the door panel to the upper side of the welding table. The door panel is supported by the universal balls. Raise the lifting positioning tables to the welding table. The worker adjusts the door panel so that the door panel abuts against the lifting positioning tables. Lower the second universal ball table to the lower side of the welding table. The door panel is supported by the welding table, and then the welding operation is carried out. When moving the door panel, the lifting positioning tables are on the lower side of the welding table, and the lifting positioning tables do not interfere with the movement of the door panel. When welding, the lifting positioning tables rise to the upper side of the welding table to position the door panel, improving the welding position accuracy and the welding quality.
[0009] Further, in the above resistance welding production line, the lifting positioning table includes a base plate. The cross-section of the base plate is L-shaped. A first door panel limiting plate is connected to the horizontal plane of the base plate, and a second door panel limiting plate is connected to the vertical plane of the base plate. A first hinge limiting member and a second hinge limiting member are connected to the vertical plane of the base plate. There are two second hinge limiting members arranged in parallel. The first hinge limiting member is higher than the second hinge limiting member. When the door panel is placed on the upper side of the welding table, the door panel horizontally abuts against the first door panel limiting plate and the second door panel limiting plate. The first door panel limiting plate and the second door panel limiting plate form a limit for the door panel in the horizontal direction. Place the hinge on the top surface of the door panel. The hinge abuts against the first door panel limiting plate and the second door panel limiting plate. The first door panel limiting plate and the second door panel limiting plate provide a positioning reference for the hinge, improving the hinge welding accuracy.
[0010] Further, in the above resistance welding production line, a welding bearing table is provided on the side of the front conveying roller frame away from the resistance welding table. The welding bearing table includes a bearing plate and a bearing frame. A third universal ball table is provided on the lower side of the bearing plate. The universal balls on the top surface of the third universal ball table are correspondingly arranged with the through holes provided on the bearing plate. The third universal ball table is drivingly connected to the bearing frame through a cylinder. Setting the welding bearing table in front of the front conveying roller frame can provide more welding stations for the door panels with multiple welding positions, reduce the number of welding positions responsible for each worker, reduce the labor intensity, improve the welding efficiency, and improve the welding quality.
[0011] Further, in the above resistance welding production line, in order to further increase the number of welding stations, there are two welding bearing tables, which are respectively arranged on the side of the front conveying roller frame away from the resistance welding table and on the side of the rear conveying roller frame away from the assembly welding table.
[0012] Further, in the above resistance welding production line, there are two or more front conveying roller frames, and an array of conveying rollers is provided on the top surface of the front conveying roller frames. There are two or more rear conveying roller frames, and an array of conveying rollers is provided on the top surface of the rear conveying roller frames. When the welding time required for the welding station is different, the door panel can be stored on the front conveying roller frame or the rear conveying roller frame to reduce the waiting time.
[0013] Further, in the above resistance welding production line, a conveying wheel set is movably connected to one end of the double-station welding table close to the resistance welding table. The conveying wheel set includes fixing plates arranged in parallel with a gap, conveying wheels arranged between the two fixing plates, one end of the fixing plate is axially movably connected to one side of the machine frame, the machine frame is connected with a supporting air cylinder, the cylinder body of the supporting air cylinder is axially movably connected to the machine frame, and the cylinder shaft of the supporting air cylinder is axially movably connected to the fixing plate. The arrangement of the conveying wheel set facilitates the movement of the door panel from the resistance welding table to the upper side of the double-station welding table. And because the production line is relatively long, it is necessary for workers to walk around to the opposite side of the production line. At this time, by controlling the supporting air cylinder, the conveying wheel set can be lowered to facilitate workers to walk to the opposite side of the double-station welding table, improving work efficiency.
[0014] Further, in the above resistance welding production line, in order to facilitate workers to pass through the production line, there are two conveying wheel sets, which are respectively arranged at both ends of the double-station welding table.
[0015] As can be seen from the above technical solutions, the present utility model has the following beneficial effects: In the resistance welding production line of the present utility model, the welding of each part of the door panel is decomposed into multiple processes. Workers only need to be responsible for some welding positions, which can enable workers to master the welding skills of this part more deeply, improve proficiency, improve welding efficiency, and improve welding quality. The universal balls avoid manual handling by workers and reduce the risk of the door panel being knocked. The resistance welding machine can perform resistance welding on the door panel through the avoidance groove, improving welding efficiency. The lifting positioning table positions the door panel, provides a reference for hinge welding, improves the welding position accuracy, and improves welding quality. The lifting conveying wheel set facilitates workers to pass through the production line, reduces the crossing distance, and improves work efficiency. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] Figure 1 is a schematic structural diagram of the resistance welding production line of the present utility model;
[0017] Figure 2 is a schematic structural diagram of the double-station welding table;
[0018] Figure 3 is a perspective view of the double-station welding table;
[0019] Figure 4 is a schematic structural diagram of the group welding table;
[0020] Figure 5 is a schematic structural diagram of the welding carrier table.
[0021] In the figure: 1. Front conveying roller frame; 2. Resistance welding station; 21. Resistance welding bottom plate; 22. Universal ball; 23. Avoidance groove; 3. Double-station welding table; 31. Moving platform; 311. Through hole; 32. Double-station machine frame; 33. Guide rail; 34. Horizontal cylinder; 35. Vertical cylinder; 36. Conveying wheel group; 361. Fixed plate; 362. Conveying wheel; 363. Support cylinder; 37. First universal ball table; 4. Group welding table; 41. Group welding machine frame; 42. Welding table; 43. Second universal ball table; 44. Lifting positioning table; 441. Substrate; 442. First door panel limiting plate; 443. Second door panel limiting plate; 444. First hinge limit; 445. Second hinge limit; 5. Rear conveying roller frame; 6. Welding bearing table; 61. Bearing plate; 62. Bearing frame; 63. Third universal ball table. Specific implementation mode
[0022] Example 1
[0023] As Figure 1 A resistance welding production line as shown in the figure includes a front conveying roller frame 1 and a double-station welding table 3. A resistance welding station 2 is provided between the front conveying roller frame 1 and the double-station welding table 3. A group welding table 4 is provided on the side of the double-station welding table 3 away from the resistance welding station 2, and a rear conveying roller frame 5 is provided on the side of the group welding table 4 away from the double-station welding table 3. The front conveying roller frame 1, the resistance welding station 2, the double-station welding table 3, the group welding table 4, and the rear conveying roller frame 5 are arranged adjacent to each other in sequence. The resistance welding station 2 includes a resistance welding bottom plate 21. Universal balls 22 are provided on the top surface of the resistance welding bottom plate 21. The universal balls 22 are fixedly arranged in an array on the top surface of the resistance welding bottom plate 21. The resistance welding bottom plate 21 is provided with a through avoidance groove 23, and the resistance welding machine performs resistance welding on the product through the avoidance groove 23. Two welding bearing tables 6 are provided on the side of the front conveying roller frame 1 away from the resistance welding station 2. The welding bearing tables 6 are respectively arranged on the side of the front conveying roller frame 1 away from the resistance welding station 2 and on the side of the rear conveying roller frame 5 away from the group welding table 4. There are two or more front conveying roller frames 1, and conveying rollers are arranged in an array on the top surface of the front conveying roller frame 1. There are two or more rear conveying roller frames 5, and conveying rollers are arranged in an array on the top surface of the rear conveying roller frame 5.
[0024] During the welding process, the door panel to be welded is placed on the welding carrier 6 for the first - stage welding. Then, the door panel that has completed the first - stage welding is moved to the front conveyor roller rack 1, preparing for the second - stage welding. The worker moves the door panel from the front conveyor roller rack 1 to the resistance welding table 2 for the second - stage welding. The universal balls 22 provided on the resistance welding table 2 support the door panel. The worker adjusts the direction of the door panel and places the part to be welded above the avoidance groove 23. The worker uses a resistance welder to perform resistance welding on the door panel. Then, the worker moves the door panel that has completed the resistance welding to the double - station welding table 3. The worker performs the third and fourth - stage weldings on the door panel at the two workstations provided on the double - station welding table 3 respectively. Then, the door panel that has completed the welding on the double - station welding table 3 is moved to the group welding table 4, and the hinge and the door panel are welded in the fifth - stage welding at the resistance welding table 4. The door panel that has completed the fifth - stage welding is moved to the rear conveyor roller rack 5. Finally, the door panel on the upper side of the rear conveyor roller rack 5 is moved to the welding carrier 6 for the final - stage welding, and the welding is completed.
[0025] As Figures 2-3 shown in the resistance welding production line, the double - station welding table 3 includes a moving platform 31 and a double - station frame 32. A guide rail 33 is connected to the top surface of the double - station frame 32. The moving platform 31 is slidably connected to the guide rail 33 through a slider. A horizontal cylinder 34 is connected to the top surface of the double - station frame 32, and the cylinder shaft of the horizontal cylinder 34 is drivingly connected to the moving platform 31. Through - holes 311 are arranged in an array on the moving platform 31. A first universal ball table 37 is provided below the moving platform 31, and universal balls corresponding to the through - holes 311 are connected to the top surface of the first universal ball table 37. A vertical cylinder 35 is provided on the double - station frame 32, and the cylinder shaft of the vertical cylinder 35 is drivingly connected to the first universal ball table 37. The first universal ball table 37 is rectangular, and the first universal ball table 37 is arranged in parallel on both sides of the guide rail 33. Four first universal ball tables 37 form a group, and two groups of first universal ball tables 37 are arranged along the guide rail 33. A conveying wheel group 36 is movably connected to one end of the double - station welding table 3 close to the resistance welding table 2. The conveying wheel group 36 includes fixing plates 361 arranged in parallel with a gap, conveying wheels 362 arranged between the two fixing plates 361. One end of the fixing plate 361 is axially movably connected to one side of the frame 32. The frame 32 is connected with a support cylinder 363. The cylinder body of the support cylinder 363 is axially movably connected to the frame 32, and the cylinder shaft of the support cylinder 363 is axially movably connected to the fixing plate 361. For the convenience of workers to pass through the production line, two conveying wheel groups 36 are provided, and the conveying wheel groups 36 are respectively arranged at one end of the double - station welding table 3 close to the resistance welding table 2 and one end of the double - station welding table 3 close to the group welding table 4.
[0026] As Figure 4The shown resistance welding production line, the assembling and welding table 4 includes an assembling and welding machine frame 41 and a welding table 42. A second universal ball table 43 is provided on the lower side of the welding table 42, and the universal balls on the top surface of the second universal ball table 43 are correspondingly arranged with the through holes provided on the welding table 42. The second universal ball table 43 is drivingly connected to the assembling and welding machine frame 41 through a cylinder. Lifting positioning tables 44 are provided at both ends of the welding table 42. The lifting positioning tables 44 are drivingly connected to the assembling and welding machine frame 41 through cylinders, and the lifting positioning tables 44 pass through the through grooves provided on the welding table 42. The lifting positioning table 44 includes a base plate 441. The cross section of the base plate 441 is L-shaped. A first door panel limiting plate 442 is connected to the horizontal plane of the base plate 441, and a second door panel limiting plate 443 is connected to the vertical plane of the base plate 441. A first hinge limiting member 444 and a second hinge limiting member 445 are connected to the vertical plane of the base plate 441. Two second hinge limiting members 445 are arranged in parallel. The first hinge limiting member 444 is higher than the second hinge limiting member 445. The first door panel limiting plate 442 and the second door panel limiting plate 443 provide a positioning reference for the door panel in the horizontal direction, and the first door panel limiting plate 442 and the second door panel limiting plate 443 provide a positioning reference for the hinge.
[0027] As Figure 5 The shown resistance welding production line, the welding carrier table 6 includes a carrier plate 61 and a carrier frame 62. A third universal ball table 63 is provided on the lower side of the carrier plate 61. The universal balls provided on the top surface of the third universal ball table 63 are correspondingly arranged with the through holes provided on the carrier plate 61. The third universal ball table 63 is drivingly connected to the carrier frame 62 through a cylinder.
[0028] The above embodiments are exemplary. The purpose is to illustrate the technical concept and features of the present invention so that those skilled in this field can understand the content of the present invention and implement it accordingly. It cannot be used to limit the protection scope of the present invention. Any equivalent changes or modifications made according to the spirit and essence of the present invention should be covered within the protection scope of the present invention.
Claims
1. A resistance welding production line, characterized in that: The invention comprises a front conveying roller frame (1) and a double-station welding table (3); a resistance welding table (2) is arranged between the front conveying roller frame (1) and the double-station welding table (3); a welding assembly table (4) is arranged on the side of the double-station welding table (3) away from the resistance welding table (2); and a rear conveying roller frame (5) is arranged on the side of the welding assembly table (4) away from the double-station welding table (3); the front conveying roller frame (1), the resistance welding table (2), the double-station welding table (3), the welding assembly table (4), and the rear conveying roller frame (5) are arranged adjacent to each other in sequence; the resistance welding table (2) comprises a resistance welding bottom plate (21); a universal ball (22) is arranged on the top surface of the resistance welding bottom plate (21); an array of the universal ball (22) is fixed on the top surface of the resistance welding bottom plate (21); the resistance welding bottom plate (21) is provided with a through avoidance groove (23); and a resistance welding machine performs resistance welding on a product through the avoidance groove (23).
2. The resistance welding production line according to claim 1, characterized in that: The double-station welding table (3) comprises a mobile platform (31) and a double-station frame (32); the top surface of the double-station frame (32) is connected to a guide rail (33); the mobile platform (31) is slidably connected to the guide rail (33) via a slider; the top surface of the double-station frame (32) is connected to a horizontal cylinder (34); the cylinder shaft of the horizontal cylinder (34) is drivingly connected to the mobile platform (31); the mobile platform (31) has an array of through holes (311); a first universal ball table (37) is provided on the lower side of the mobile platform (31); a universal ball corresponding to the through hole (311) is connected to the top surface of the first universal ball table (37); the double-station frame (32) is provided with a vertical cylinder (35); the cylinder shaft of the vertical cylinder (35) is drivingly connected to the first universal ball table (37).
3. The resistance welding production line according to claim 2, characterized in that: The first universal ball tables (37) are rectangular and are arranged in parallel on both sides of the guide rail (33). Four of the first universal ball tables (37) form a group, and two groups of first universal ball tables (37) are arranged along the guide rail (33).
4. The resistance welding production line according to claim 1, characterized in that: The assembly welding platform (4) comprises an assembly welding frame (41) and a welding platform (42); a second universal ball platform (43) is provided at the lower side of the welding platform (42); a universal ball on the top surface of the second universal ball platform (43) and a through hole provided on the welding platform (42) are arranged correspondingly; the second universal ball platform (43) is connected to the assembly welding frame (41) by a cylinder; lifting and positioning platforms (44) are provided at both ends of the welding platform (42); the lifting and positioning platforms (44) are connected to the assembly welding frame (41) by a cylinder; the lifting and positioning platforms (44) pass through a through slot provided on the welding platform (42); and the lifting and positioning platforms (44) provide positioning for the workpiece to be welded.
5. The resistance welding production line according to claim 4, characterized in that: The lifting and positioning platform (44) comprises a base plate (441), the cross section of the base plate (441) is L-shaped, the horizontal surface of the base plate (441) is connected to a first door panel limit plate (442), and the vertical surface of the base plate (441) is connected to a second door panel limit plate (443); the vertical surface of the base plate (441) is connected to a first hinge limiter (444) and a second hinge limiter (445), two second hinge limits (445) are arranged in parallel, and the first hinge limiter (444) is higher than the second hinge limiter (445).
6. The resistance welding production line according to claim 1, characterized in that: A welding bearing platform (6) is provided on the side of the front conveying roller frame (1) away from the resistance welding platform (2), the welding bearing platform (6) comprising a bearing plate (61) and a bearing frame (62), a third universal ball table (63) is provided on the lower side of the bearing plate (61), a universal ball provided on the top surface of the third universal ball table (63) and a through hole provided on the bearing plate (61) are arranged correspondingly, and the third universal ball table (63) is connected to the bearing frame (62) by driving via a cylinder.
7. The resistance welding production line according to claim 6, characterized in that: Two welding bearing platforms (6) are provided, and the welding bearing platforms (6) are respectively provided on a side of the front conveying roller frame (1) away from the resistance welding platform (2) and a side of the rear conveying roller frame (5) away from the assembly welding platform (4).
8. The resistance welding production line according to claim 1, characterized in that: The front conveying roller frames (1) are provided with two or more, and the top surface of the front conveying roller frames (1) is provided with an array of conveying rollers; the rear conveying roller frames (5) are provided with two or more, and the top surface of the rear conveying roller frames (5) is provided with an array of conveying rollers.
9. The resistance welding production line according to claim 1, characterized in that: The double-station welding table (3) is movably connected to a conveying wheel group (36) at one end close to the resistance welding table (2); the conveying wheel group (36) comprises a fixed plate (361) arranged in parallel with a gap, and a conveying wheel (362) arranged between two fixed plates (361); one end of the fixed plate (361) is movably connected to a side axis of a frame (32); the frame (32) is connected to a supporting cylinder (363); a cylinder body of the supporting cylinder (363) is movably connected to a shaft of the frame (32); and a cylinder shaft of the supporting cylinder (363) is movably connected to a shaft of the fixed plate (361).
10. The resistance welding production line according to claim 9, characterized in that: Two conveying wheel assemblies (36) are provided, and the conveying wheel assemblies (36) are respectively arranged at two ends of the double-station welding table (3).