An automatic welding equipment for the oil drain outlet of the oil pan

Abstract

The present invention discloses an automatic welding device for the oil drain outlet of an oil pan, which relates to the field of welding and includes a frame. A first positioning mechanism for fixing the oil pan is arranged at the top of the frame. The first positioning mechanism includes a turntable rotatably connected to the top of the frame through a first rotating shaft. The outer periphery of the top of the turntable is rotatably connected through a second rotating shaft with a profiling positioning seat adapted to the inner cavity of the oil pan and used for positioning and supporting the oil pan. For this automatic welding device for the oil drain outlet of the oil pan, the first positioning mechanism is composed of a rotatable turntable and a plurality of profiling positioning seats arranged on the top of the turntable. Cooperating with the welding mechanism and the driving mechanism, continuous welding of the oil pan can be achieved. When the turntable rotates, the oil pan remains stationary, and when the oil pan rotates, the turntable remains stationary, with intermittent rotation. During welding, loading and unloading operations can be performed on the welded oil pan, improving the efficiency.

Description

Technical Field

[0001] The present invention relates to the field of welding, and particularly relates to an automatic welding device for the oil drain port of an oil pan. Background Art

[0002] As Figure 1 shown, it is a schematic structural diagram of an oil pan 1 and a plug support 2 in the prior art. The oil pan 1 is mainly used to store engine oil. The engine oil plays various roles such as lubrication, cooling, cleaning, and rust prevention during the operation of the engine. The oil pan 1 ensures the circulation of the engine oil inside the engine and maintains the normal operation of the engine. Generally, a through hole 3 (oil drain port) is provided at the bottom of the oil pan 1, and then the plug support 2 is welded in the through hole 3. The plug support 2 is used to screw a plug, and the oil can be discharged through the plug support 2 when the plug is screwed off.

[0003] In the prior art, when welding the plug support 2 of the oil pan 1, it is generally necessary to position the oil pan 1, and then place the plug support 2 in the oil drain port, and weld a circle of the plug support 2 through a welding device. However, there are mainly two ways to weld the oil pan 1 and the plug support 2 in the prior art. One is manual welding, and the other is welding through a welding device. The former is time-consuming and laborious, and the welding accuracy is poor. Although the latter can achieve a certain degree of automatic welding, after welding, it is necessary to remove the welded oil pan 1, and then fix a new oil pan 1 to continue welding. This involves the loading and unloading of the oil pan 1, the loading and unloading of the plug support 2, the fixing of the oil pan 1, the fixing of the plug support 2, etc. Therefore, the continuity of welding of the existing oil drain port welding device for the oil pan is poor, the degree of automation is low, and when welding, the welding torch maintains a certain angle to perform linear welding around a circle of the plug support, and the welding area is small, so the firmness is not good.

[0004] Therefore, it is very necessary to propose an automatic welding device for the oil drain port of an oil pan to solve the above problems. Summary of the Invention

[0005] The main object of the present invention is to provide an automatic welding device for the oil drain port of an oil pan, which can effectively solve the problems in the background art.

[0006] To achieve the above object, the technical solution adopted by the present invention is as follows:

[0007] An automatic welding device for the oil drain port of an oil pan, comprising a frame. A first positioning mechanism for fixing the oil pan is arranged at the top of the frame. The first positioning mechanism includes a turntable rotatably connected to the top of the frame through a first rotating shaft. The outer periphery of the top of the turntable is rotatably connected through a second rotating shaft with a profiling positioning seat adapted to the inner cavity of the oil pan and used for positioning and supporting the oil pan, and the axis of the second rotating shaft coincides with the axis of the through hole of the oil pan on the profiling positioning seat;

[0008] On one side of the top of the frame, a welding mechanism is provided. The welding mechanism includes a welding frame arranged on one side of the top of the frame. At the upper end of the welding frame, a welding torch holder is provided. A welding torch is arranged on the welding torch holder, and the electrode at the lower end of the welding torch corresponds to the profiling positioning seat.

[0009] It further includes a driving mechanism for driving the turntable and the profiling positioning seat to rotate. The driving mechanism includes a second gear fixedly arranged on the outer side of the lower end of the first rotating shaft. One end of the top of the frame is vertically and rotatably connected with a vertical shaft. On the outer side of the lower end of the vertical shaft, a first incomplete gear corresponding to and adapted to the second gear is fixedly arranged. The lower end of the second rotating shaft extends to the bottom of the turntable and is fixedly provided with a first gear. On the outer side of the lower end of the vertical shaft, a second incomplete gear corresponding to and adapted to the first gear is fixedly arranged. The teeth on the second incomplete gear are arranged opposite to the teeth on the first incomplete gear, and are configured such that when the teeth on the first incomplete gear are separated from the teeth on the second gear, the teeth on the second incomplete gear just start to mesh with the first gear. After the teeth on the second incomplete gear are separated from the first gear, the teeth on the first incomplete gear mesh with the second gear. At this time, one of the profiling positioning seats corresponds to the welding torch, and when the teeth on the second incomplete gear mesh with and are separated from the first gear, the first gear just rotates one week. A speed reducer for driving the vertical shaft to rotate is arranged at the bottom of the frame.

[0010] Preferably, the profiling positioning seats are evenly distributed on the outer periphery of the top of the turntable, and the oil pan is fixed on the profiling positioning seats by means of reverse buckling.

[0011] There is a gap between the vertical shaft and the turntable, and the gap is configured such that when the profiling positioning seat drives the oil pan to rotate, the oil pan will not contact the vertical shaft.

[0012] Preferably, an adjusting mechanism for adjusting the inclination angle of the welding torch is arranged at the upper end of the welding frame. The adjusting mechanism includes a mounting frame fixedly arranged at the upper end of the welding frame. The lower end of the welding torch holder is movably connected to the lower end of one side of the mounting frame. The upper end of the vertical shaft extends to the upper end of the welding frame and is fixedly provided with a guide wheel corresponding to the welding torch holder. Curved grooves are arranged on the outer periphery of the top and bottom of the guide wheel. One end of the curved groove is arc-shaped, and the other end is wavy. The arc-shaped and wavy shapes form a closed ring structure, and the wavy shape corresponds to the tooth area of the second incomplete gear. A sliding seat is slidably connected along the vertical direction on the upper end of the side of the welding torch holder close to the mounting frame. A traction arm is movably connected to the sliding seat. The end of the traction arm away from the sliding seat extends to the side of the mounting frame away from the welding torch holder. The end of the traction arm away from the welding torch holder is in a "U" shape, and a first guide wheel adapted to the curved groove is rotatably connected to the inner side of the "U" shape, and the first guide wheel is rotatably connected in the curved groove.

[0013] Preferably, one end of the top of the frame is provided with a loading mechanism for loading the screw plug support, the loading mechanism includes a storage cylinder arranged at one end of the top of the frame through a first fixing frame, and the storage cylinder is arranged vertically, and the storage cylinder is located at the top of the turntable and corresponds to the contour positioning seat, the storage cylinder is used to stack the storage screw plug supports, the bottom of the storage cylinder is provided with a hollow bottom shell, the top of the bottom shell is provided with a first drop hole corresponding to the storage cylinder, the inner side of the bottom shell is slidably connected with a loading arm, a third spring is provided between the loading arm and the inner wall of one end of the inner cavity of the bottom shell, the end of the loading arm close to the third spring is provided with a accommodating hole with the same inner diameter as the first drop hole, and the accommodating hole in the initial state of the third spring coincides with the first drop hole, and the bottom of the bottom shell is provided with a second drop hole with an inner diameter larger than the inner diameter of the accommodating hole at one end close to the third spring, and the second drop hole corresponds to the through hole of the oil pan on the contour positioning seat;

[0014] The transmission gear of said sliding arm is connected with said sliding arm to said sliding arm backing onto said sliding arm, and said sliding arm is connected with said second end of said sliding arm to said second end of said sliding arm.

[0015] Preferably, a second positioning mechanism for positioning and guiding the screw plug support is provided at one end of the top of the contoured positioning seat, and the second positioning mechanism includes a positioning platform arranged at the top of the contoured positioning seat and corresponding to the through hole on the oil pan, the upper end of the positioning platform is conical, and the lower end is cylindrical, and the diameter of the cylinder is adapted to the inner diameter of the screw plug support, the lower end of the positioning platform is located in the through hole on the oil pan, and the gap between the lower end of the positioning platform and the through hole is greater than the wall thickness of the screw plug support, a trapezoidal block with a trapezoidal cross-section is movably connected to the inner side of the side wall of the lower end of the positioning platform, and a second spring is provided between the trapezoidal block and the inner side of the side wall of the positioning platform, and one end of the trapezoidal block protrudes from the side wall of the positioning platform when the second spring is in the reset state.

[0016] Preferably, it further includes a fixing component for locking the second rotating shaft. The fixing component includes a limiting ring arranged on the periphery of the turntable. There is a gap between the limiting ring and the turntable. An opening is provided at one end of the limiting ring close to the welding frame, and chamfers are provided on both sides of the opening. A slideway corresponding to the profiling positioning seat is arranged on the side wall of the turntable. A locking arm corresponding to the second rotating shaft and used for locking the second rotating shaft is slidably connected to the inner side of the slideway. One end of the locking arm far from the second rotating shaft is rotatably connected to a roller for rolling cooperation with the inner side of the limiting ring. A convex block is arranged on the inner wall of the slideway, and a first spring is arranged between the convex block and the side wall of the locking arm close to the roller. In the initial state of the first spring, the roller protrudes from the side wall of the turntable, and at this time, the locking arm does not contact the second rotating shaft;

[0017] The notch on the limiting ring is larger than the diameter of the roller, and the position of the notch is configured such that when the teeth of the second incomplete gear mesh with the first gear, the roller just pops out from the notch, and at this time, the second rotating shaft is unlocked. When the teeth of the second incomplete gear separate from the first gear, the roller is restricted by the inner wall of the limiting ring to drive the locking arm to lock the second rotating shaft inward.

[0018] Preferably, a first braking component for braking the first rotating shaft is arranged on the top of the frame. The first braking component includes a first disc arranged on the outer side of the lower end of the first rotating shaft. A first arc-shaped notch corresponding to the profiling positioning seat is arranged on the outer side of the first disc. A first braking disc in the shape of a sector corresponding to the first disc is fixedly arranged on the outer side of the lower end of the vertical shaft. The first braking disc is adapted to the first arc-shaped notch, and is configured such that when the teeth on the first incomplete gear separate from the second gear, the first braking disc enters one of the corresponding first arc-shaped notches, and when the first incomplete gear meshes with the second gear, the first braking disc separates from the first arc-shaped notch.

[0019] Preferably, there are multiple groups of teeth on the second incomplete gear, and the number of each group is two. The gap between adjacent groups of teeth is greater than the width of at least one tooth.

[0020] Preferably, a second braking component for braking the second rotating shaft is arranged below the turntable. The second braking component includes a second disc fixedly arranged on the outer side of the lower end of the second rotating shaft. Second arc-shaped notches are uniformly arranged on the side wall of the second disc. A second braking disc corresponding to the second disc is arranged on the outer side of the lower end of the vertical shaft. A braking plate in the shape of a sector is arranged on the outer side of the second braking disc, and the braking plate is adapted to the second arc-shaped notch. The multiple braking plates are concentrated in a fan shape, and the multiple braking plates are arranged at intervals with the multiple groups of teeth on the second incomplete gear. The braking plate is configured such that when one of the groups of teeth on the second incomplete gear separates from the first gear, the corresponding braking plate enters the second arc-shaped notch.

[0021] Preferably, a third disc corresponding to the first brake disc is fixedly arranged on the outer side of the lower end of the third rotating shaft. A third arc-shaped notch adapted to the first brake disc is arranged on the side wall of the third disc, and it is configured that the first brake disc enters the third arc-shaped notch after the first incomplete gear is separated from the third gear, and the first brake disc separates from the third arc-shaped notch when the first incomplete gear starts to mesh with the third gear.

[0022] Compared with the prior art, the present invention provides an automatic welding device for the oil drain port of the oil pan, which has the following beneficial effects:

[0023] 1. For this automatic welding device for the oil drain port of the oil pan, the first positioning mechanism is composed of a rotatable turntable and a plurality of profiling positioning seats arranged on the top of the turntable. Under the action of the self-weight of the oil pan and the profiling positioning seats, the oil pan can be kept stable. Cooperating with the welding mechanism and the driving mechanism, continuous welding of the oil pan can be realized. When the turntable rotates, the oil pan remains stationary, and when the oil pan rotates, the turntable remains stationary and rotates intermittently. During welding, the loading and unloading operations of the welded oil pan can be carried out, improving the efficiency and having a high degree of automation.

[0024] 2. For this automatic welding device for the oil drain port of the oil pan, the angle of the welding torch can be continuously adjusted when the oil pan rotates through the arranged adjusting mechanism, so that the welding torch swings slightly and quickly, which can increase the area of the welding area, improve the welding efficiency, increase the firmness between the plug support and the oil pan, and is linked with the rotation of the oil pan, without the need to additionally set a driving source, with a compact structure and high efficiency.

[0025] 3. For this automatic welding device for the oil drain port of the oil pan, the plug support can be loaded before welding through the arranged loading mechanism, which is linked with the driving mechanism, and the loaded plug support can be firmly pressed onto the through hole on the oil pan by borrowing force, further improving the efficiency and the degree of automation.

[0026] 4. For this automatic welding device for the oil drain port of the oil pan, the second positioning mechanism is arranged to facilitate the positioning of the plug support, and the stability of the plug support during welding can be ensured.

[0027] 5. For this automatic welding device for the oil drain port of the oil pan, the second rotating shaft can be conveniently locked through the arranged fixing component, which can ensure the stability of the profiling positioning seat when the second rotating shaft does not rotate, making the orientations of the profiling positioning seats consistent and facilitating the loading and unloading of the oil pan; the first braking component is arranged to increase the stability of the turntable when the turntable does not rotate; the second braking component is arranged to increase the stability of the profiling positioning seat when the profiling positioning seat does not rotate. Description of the Drawings

[0028] Figure 1 is a schematic structural diagram of the oil pan and the plug support of the present invention;

[0029] Figure 2 is the overall structural schematic diagram of the welding equipment of the present invention;

[0030] Figure 3 is the present invention Figure 2 structural schematic diagram from another perspective based on this;

[0031] Figure 4 is the structural schematic diagram of the present invention after the restraint ring and the frame are removed from the welding equipment;

[0032] Figure 5 is the present invention Figure 4 structural schematic diagram from another perspective based on this;

[0033] Figure 6 is the structural schematic diagram of the restraint ring of the present invention;

[0034] Figure 7 is the structural schematic diagram of the present invention after the oil sump is removed from the profiling positioning seat;

[0035] Figure 8 is the structural schematic diagram of the driving mechanism and the turntable of the present invention in a disassembled state;

[0036] Figure 9 is the structural schematic diagram of the profiling positioning seat and the turntable of the present invention in a disassembled state;

[0037] Figure 10 is the cross-sectional structural schematic diagram of the turntable of the present invention;

[0038] Figure 11 is the present invention Figure 10 enlarged view at A in this;

[0039] Figure 12 is the structural schematic diagram of the profiling positioning seat of the present invention;

[0040] Figure 13 is the structural schematic diagram of the trapezoidal block and the positioning table of the present invention in a disassembled state;

[0041] Figure 14 is the structural schematic diagram of the loading mechanism of the present invention;

[0042] Figure 15 is the sectional structural schematic diagram of the bottom shell of the present invention;

[0043] Figure 16 is the structural schematic diagram of the guide wheel and the traction arm of the present invention in a disassembled state;

[0044] Figure 17 is the structural schematic diagram of the welding torch and the welding torch holder of the present invention in a disassembled state.

[0045] In the figure: 1. oil pan; 2. plug support; 3. through hole; 4. frame; 5. welding frame; 6. turntable; 7. limiting ring; 8. first fixing frame; 9. vertical shaft; 10. first incomplete gear; 11. second fixing frame; 12. arc bracket; 13. storage cylinder; 14. speed reducer; 15. first disc; 16. first arc notch; 17. welding torch holder; 18. welding torch; 19. first rotating shaft; 20. first gear; 21. first brake disc; 22. profiling positioning seat; 23. mounting frame; 24. guide wheel; 25. second brake disc; 26. brake plate; 27. second gear; 28. second incomplete gear; 29. adjusting cylinder; 30. second rotating shaft; 31. second disc; 32. second arc notch; 33. roller; 34. slideway; 35. convex block; 36. locking arm; 37. first spring; 38. positioning table; 39. trapezoidal block; 40. second spring; 41. third gear; 42. third disc; 43. third arc notch; 44. third rotating shaft; 45. cam; 46. loading arm; 47. bottom shell; 48. force - applying block; 49. third spring; 50. first drop hole; 51. receiving hole; 52. second drop hole; 53. curved groove; 54. traction arm; 55. first guide wheel; 56. sliding seat; 57. inclined groove; 58. sliding frame; 59. second guide wheel. Detailed implementation mode

[0046] To make the technical means, creative features, achieved purposes and functions of the present invention easy to understand, the present invention will be further described below in conjunction with the specific implementation mode.

[0047] As a preferred embodiment

[0048] As Figures 2 - 5 , Figures 7 - 9 , Figure 12 shown, an automatic welding device for the oil outlet of the oil pan includes a frame 4. A first positioning mechanism for fixing the oil pan 1 is arranged at the top of the frame 4. The first positioning mechanism includes a turntable 6 rotatably connected to the top of the frame 4 through a first rotating shaft 19. The outer periphery of the top of the turntable 6 is rotatably connected through a second rotating shaft 30 with a profiling positioning seat 22 adapted to the inner cavity of the oil pan 1 and used for positioning and supporting the oil pan 1. The profiling positioning seats 22 are evenly distributed on the outer periphery of the top of the turntable 6. The oil pan 1 is fixed on the profiling positioning seat 22 by being inverted, and the axis of the second rotating shaft 30 coincides with the axis of the through hole 3 of the oil pan 1 on the profiling positioning seat 22. There is a gap between the vertical shaft 9 and the turntable 6, and the gap is configured such that when the profiling positioning seat 22 drives the oil pan 1 to rotate, the oil pan 1 will not contact the vertical shaft 9;

[0049] As Figures 2 - 5 , Figure 7 , Figure 16 , Figure 17As shown in the figure, a welding mechanism is provided on one side of the top of the frame 4. The welding mechanism includes a welding frame 5 provided on one side of the top of the frame 4. A welding torch holder 17 is provided at the upper end of the welding frame 5. A welding torch 18 is provided on the welding torch holder 17, and the electrode at the lower end of the welding torch 18 corresponds to the profiling positioning seat 22.

[0050] As Figures 2 - 5 , Figures 7 - 9 shown in the figure, it further includes a driving mechanism for driving the rotary table 6 and the profiling positioning seat 22 to rotate. The driving mechanism includes a second gear 27 fixedly provided on the outer side of the lower end of the first rotating shaft 19. One end of the top of the frame 4 is vertically rotatably connected to a vertical shaft 9. A first incomplete gear 10 corresponding to and adapted to the second gear 27 is fixedly provided on the outer side of the lower end of the vertical shaft 9. The lower end of the second rotating shaft 30 extends to the bottom of the rotary table 6 and is fixedly provided with a first gear 20. A second incomplete gear 28 corresponding to and adapted to the first gear 20 is fixedly provided on the outer side of the lower end of the vertical shaft 9. The teeth on the second incomplete gear 28 are arranged in the opposite direction to the teeth on the first incomplete gear 10, and are configured such that when the teeth on the first incomplete gear 10 are separated from the teeth on the second gear 27, the teeth on the second incomplete gear 28 just start to mesh with the first gear 20. After the teeth on the second incomplete gear 28 are separated from the first gear 20, the teeth on the first incomplete gear 10 mesh with the second gear 27. At this time, one of the profiling positioning seats 22 corresponds to the welding torch 18, and when the teeth on the second incomplete gear 28 mesh with and are separated from the first gear 20, the first gear 20 just rotates one week. A speed reducer 14 for driving the vertical shaft 9 to rotate is provided at the bottom of the frame 4.

[0051] As Figures 7 - 8 , Figure 16 , Figure 17 shown in the figure, an adjusting mechanism for adjusting the inclination angle of the welding torch 18 is provided at the upper end of the welding frame 5. The adjusting mechanism includes a mounting frame 23 fixedly provided at the upper end of the welding frame 5. The lower end of the welding torch holder 17 is movably connected to the lower end of one side of the mounting frame 23. The upper end of the vertical shaft 9 extends to the upper end of the welding frame 5 and is fixedly provided with a guide wheel 24 corresponding to the welding torch holder 17. Curved grooves 53 are provided on the peripheries of the top and bottom of the guide wheel 24. One end of the curved groove 53 is arc-shaped, and the other end is wavy, and the arc-shaped and wavy shapes form a closed ring structure, and the wavy shape corresponds to the tooth area of the second incomplete gear 28. A sliding seat 56 is slidably connected along the vertical direction on the side of the welding torch holder 17 close to the mounting frame 23. A traction arm 54 is movably connected to the sliding seat 56. One end of the traction arm 54 away from the sliding seat 56 extends to the side of the mounting frame 23 away from the welding torch holder 17, and one end of the traction arm 54 away from the welding torch holder 17 is in a "U" shape, and a first guide wheel 55 adapted to the curved groove 53 is rotatably connected to the inner side of the "U" shape, and the first guide wheel 55 is rotatably connected in the curved groove 53.

[0052] AsFigure 8 As shown, in order to make the oil pan 1 rotate slowly to increase the welding area, there are multiple groups of gear teeth on the second incomplete gear 28, each group has two gear teeth, and the gap between two adjacent groups of gear teeth is greater than the width of at least one gear tooth;

[0053] like Figures 2 - 5 、 Figures 14 - 15 As shown, a feeding mechanism for feeding the screw plug support 2 is provided at one end of the top of the frame 4, and the feeding mechanism includes a storage cylinder 13 provided at one end of the top of the frame 4 through a first fixing frame 8, and the storage cylinder 13 is vertically provided, and the storage cylinder 13 is located on the top of the turntable 6 and corresponds to the contoured positioning seat 22, and the storage cylinder 13 is used to stack and store the screw plug support 2, and a hollow bottom shell 47 is provided at the bottom of the storage cylinder 13, and a first drop hole 50 is provided at the top of the bottom shell 47 corresponding to the storage cylinder 13, and the bottom shell 47 is provided with a hollow bottom shell 47. The inner side is slidably connected with a loading arm 46, and a third spring 49 is provided between the loading arm 46 and the inner wall of one end of the inner cavity of the bottom shell 47. The end of the loading arm 46 close to the third spring 49 is provided with a receiving hole 51 with the same inner diameter as the first drop hole 50, and the receiving hole 51 coincides with the first drop hole 50 in the initial state of the third spring 49. The bottom of the bottom shell 47 close to the end of the third spring 49 is provided with a second drop hole 52 with an inner diameter larger than the inner diameter of the receiving hole 51, and the second drop hole 52 is aligned with the oil pan on the contoured positioning seat 22. 1 corresponds to the through hole 3 of the frame 4, and the end of the top of the frame 4 near the first fixed frame 8 is provided with a third shaft 44 through the second fixed frame 11. The third shaft 44 is rotatably connected to the second fixed frame 11. The outer side of the lower end of the third shaft 44 is fixedly provided with a third gear 41 corresponding to and adapted to the first incomplete gear 10, and is configured so that when the first incomplete gear 10 rotates from engaging with the third gear 41 to separating from the third gear 41, a cam 45 is fixedly provided on the upper end of the third shaft 44, and a loading arm 46 is fixedly provided. One end away from the third spring 49 extends to the outside of the bottom shell 47 and corresponds to the cam 45, and is configured so that when the cam 45 rotates, it will interfere with one end of the loading arm 46, so that the loading arm 46 is driven by the cam 45 to displace and compress the third spring 49, and when the displacement reaches the maximum distance, the accommodating hole 51 will coincide with the second drop hole 52. A force block 48 is provided on one side of the bottom shell 47, and one end of the bottom of the force block 48 is chamfered, and the force block 48 is arc-shaped and corresponds to the through hole 3 of the oil pan 1 on the contoured positioning seat 22.

[0054] like Figures 12 - 13As shown in the figure, a second positioning mechanism for positioning and guiding the plug support 2 is provided at one end of the top of the profiling positioning seat 22. The second positioning mechanism includes a positioning table 38 provided at the top of the profiling positioning seat 22 corresponding to the through hole 3 on the oil pan 1. The upper end of the positioning table 38 is conical, and the lower end is cylindrical. The diameter of the cylindrical part is adapted to the inner diameter of the plug support 2. The lower end of the positioning table 38 is located in the through hole 3 on the oil pan 1, and the gap between the lower end of the positioning table 38 and the through hole 3 is greater than the wall thickness of the plug support 2. A trapezoidal block 39 with a trapezoidal cross-section is movably connected to the inner side of the side wall at the lower end of the positioning table 38. A second spring 40 is provided between the trapezoidal block 39 and the inner side of the side wall of the positioning table 38. One end of the trapezoidal block 39 protrudes from the side wall of the positioning table 38 in the reset state of the second spring 40.

[0055] As Figures 2 - 3 , Figure 6 , Figures 9 - 11 shown in the figure, it further includes a fixing component for locking the second rotating shaft 30. The fixing component includes a limiting ring 7 provided outside the turntable 6. There is a gap between the limiting ring 7 and the turntable 6. An opening is provided at one end of the limiting ring 7 close to the welding frame 5, and chamfers are provided on both sides of the opening. A slideway 34 corresponding to the profiling positioning seat 22 is provided on the side wall of the turntable 6. A locking arm 36 corresponding to the second rotating shaft 30 and used for locking the second rotating shaft 30 is slidably connected to the inner side of the slideway 34. A roller 33 used for rolling cooperation with the inner side of the limiting ring 7 is rotatably connected to one end of the locking arm 36 away from the second rotating shaft 30. A convex block 35 is provided on the inner wall of the slideway 34. A first spring 37 is provided between the convex block 35 and the side wall of one end of the locking arm 36 close to the roller 33. In the initial state of the first spring 37, the roller 33 protrudes from the side wall of the turntable 6, and at this time the locking arm 36 is not in contact with the second rotating shaft 30. The notch on the limiting ring 7 is larger than the diameter of the roller 33, and the position of the notch is configured such that when the teeth of the second incomplete gear 28 mesh with the first gear 20, the roller 33 just pops out from the notch, and at this time the second rotating shaft 30 is unlocked. When the teeth of the second incomplete gear 28 are separated from the first gear 20, the roller 33 is restricted by the inner wall of the limiting ring 7 to drive the locking arm 36 to lock the second rotating shaft 30 inward. The limiting ring 7 is fixed to the top of the frame 4 through an arc-shaped bracket 12, and the limiting ring 7 is fixed to the outside of the arc-shaped bracket 12. The top of the arc-shaped bracket 12 corresponds to the outer periphery of the bottom of the turntable 6, so that the arc-shaped bracket 12 plays a supporting role for the turntable 6.

[0056] As Figures 4 - 5 , Figures 7 - 8As shown in the figure, a first braking assembly for braking the first rotating shaft 19 is provided at the top of the frame 4. The first braking assembly includes a first disc 15 disposed outside the lower end of the first rotating shaft 19. A first arc-shaped notch 16 corresponding to the profiling positioning seat 22 one by one is provided outside the first disc 15. A first braking disc 21 corresponding to the first disc 15 and in a fan shape is fixedly provided outside the lower end of the vertical shaft 9. The first braking disc 21 is adapted to the first arc-shaped notch 16, and is configured such that after the teeth on the first incomplete gear 10 are separated from the second gear 27, the first braking disc 21 enters one of the corresponding first arc-shaped notches 16, and when the first incomplete gear 10 starts to mesh with the second gear 27, the first braking disc 21 separates from the first arc-shaped notch 16.

[0057] As Figures 7 - 9 shown, a second braking assembly for braking the second rotating shaft 30 is provided below the turntable 6. The second braking assembly includes a second disc 31 fixedly provided outside the lower end of the second rotating shaft 30. Second arc-shaped notches 32 are uniformly provided on the side wall of the second disc 31. A second braking disc 25 corresponding to the second disc 31 is provided outside the lower end of the vertical shaft 9. A braking plate 26 in a fan shape is provided outside the second braking disc 25, and the braking plate 26 is adapted to the second arc-shaped notch 32. A plurality of braking plates 26 are centrally distributed in a fan shape, and a plurality of braking plates 26 are spaced from multiple sets of teeth on the second incomplete gear 28. The braking plate 26 is configured such that after one of the sets of teeth on the second incomplete gear 28 is separated from the first gear 20, the corresponding braking plate 26 enters the second arc-shaped notch 32.

[0058] As Figure 14 shown, in order to brake the third rotating shaft 44, a third disc 42 corresponding to the first braking disc 21 is fixedly provided outside the lower end of the third rotating shaft 44. A third arc-shaped notch 43 adapted to the first braking disc 21 is provided on the side wall of the third disc 42, and is configured such that after the first incomplete gear 10 is separated from the third gear 41, the first braking disc 21 enters the third arc-shaped notch 43, and when the first incomplete gear 10 starts to mesh with the third gear 41, the first braking disc 21 separates from the third arc-shaped notch 43.

[0059] In addition, as Figure 17As shown, in order to adapt to the consumption of the inclined electrode at the lower end of the welding torch 18, an inclined groove 57 with an inclination angle matching that of the electrode at the lower end of the welding torch 18 is provided inside the lower end of the welding torch holder 17. The welding torch 18 is movably connected to the inside of the welding torch holder 17 through a carriage 58. A second guide wheel 59 that is movably engaged with the inclined groove 57 is rotatably connected to the side wall of the carriage 58. An adjusting cylinder 29 for driving the carriage 58 to move up and down is provided at the upper end inside the welding torch holder 17. The end of the output shaft at the lower end of the adjusting cylinder 29 is movably connected to the upper end of the carriage 58. Thus, when the electrode at the lower end of the welding torch 18 is consumed and becomes shorter, it can be adjusted so that the distance between the electrode and the plug seat 2 remains unchanged.

[0060] Working principle: When in use, on the side of the frame 4 away from the welding frame 5, the oil pan 1 can be loaded manually or by a manipulator. The oil pan 1 is inverted onto the profiling positioning seat 22, and the plug support 2 is stacked in the storage cylinder 13. The lowermost plug support 2 will enter the receiving hole 51 through the first dropping hole 50. Control the reduction gear 14 to drive the vertical shaft 9 to rotate. The vertical shaft 9 drives the first brake disc 21, the first incomplete gear 10, the second incomplete gear 28, the second incomplete gear 28, and the guide wheel 24 to rotate synchronously. When the first incomplete gear 10 meshes with the second gear 27, the turntable 6 rotates. When the oil pan 1 passes under the bottom shell 47, the first incomplete gear 10 meshes with the third gear 41. Thus, the third gear 41 drives the cam 45 to rotate through the third rotating shaft 44. The cam 45 pushes the feeding arm 46 to displace. The displacement of the feeding arm 46 drives the plug support 2 to displace and compress the third spring 49. Subsequently, the receiving hole 51 coincides with the second dropping hole 52, and the plug support 2 drops onto the positioning table 38 in the through hole 3 of the oil pan 1. Since the upper end of the positioning table 38 is conical, even when the turntable 6 is rotating, the plug support 2 can still fall on the outer side of the upper end of the positioning table 38. Moreover, the inner diameter of the second dropping hole 52 is relatively large, and the plug support 2 can drop from the second dropping hole 52 during the displacement of the feeding arm 46. Subsequently, the cam 45 separates from the feeding arm 46, and the third spring 49 drives the feeding arm 46 to reset. The subsequent plug support 2 drops into the receiving hole 51 and waits for subsequent feeding. The plug support 2 that falls outside the positioning table 38 will pass under the pressing block 48 as the turntable 6 rotates. Thus, under the restriction of the pressing block 48, the plug support 2 will be pressed into the through hole 3, and the trapezoidal block 39 will be squeezed by the plug support 2. Thereby, the trapezoidal block 39 squeezes the second spring 40, and the reverse force of the second spring 40 maintains the stability of the plug support 2. When the oil pan 1 with the plug support 2 fixed displaces under the welding torch 18, the first incomplete gear 10 separates from the second gear 27, and the first brake disc 21 enters the first arc-shaped notch 16 to brake the first rotating shaft 19. The teeth on the first gear 20 start to mesh with the corresponding first gear 20. When meshing, the first gear 20 drives the oil pan 1 to rotate through the profiling positioning seat 22. The welding torch 18 welds the periphery of the plug support 2. And when the second incomplete gear 28 intermittently meshes with the first gear 20, the first guide wheel 55 is located in the wavy section of the curved groove 53. At this time, under the action of the wave shape, the traction arm 54 will drive the welding torch holder 17 to continuously adjust the angle. Thus, the welding torch holder 17 drives the welding torch 18 to swing quickly and with a small amplitude, which can increase the area of the welding area and increase the firmness between the plug support 2 and the oil pan 1. When the turntable 6 rotates, the first guide wheel 55 is located in the arc-shaped part of the curved groove 53, and the welding torch 18 swings at this time;

[0061] For further principles, in order to achieve the selective fixation of each axis, when the first incomplete gear 10 is separated from the second gear 27, the first brake disc 21 enters the first arc-shaped notch 16 to brake the first rotating shaft 19. When each set of teeth on the second incomplete gear 28 is separated from the first gear 20, the corresponding brake plate 26 enters the second arc-shaped notch 32 to brake the second rotating shaft 30. When the plug seat 2 corresponds to the welding torch 18, the second rotating shaft 30 is unlocked by the locking arm 36. When the turntable 6 starts to rotate after welding, the roller 33 is pressed, and immediately the locking arm 36 locks the second rotating shaft 30. When the third gear 41 rotates one week, the first brake disc 21 enters the third arc-shaped notch 43 to brake the third rotating shaft 44.

[0062] The above shows and describes the basic principles, main features and advantages of the present invention. Those skilled in the art of this industry should understand that the present invention is not limited by the above embodiments. What is described in the above embodiments and the specification only illustrates the principles of the present invention. Without departing from the spirit and scope of the present invention, the present invention will have various changes and improvements, and these changes and improvements all fall within the scope of the present invention claimed.

Claims

1. An automatic welding device for the oil drain outlet of an oil pan, comprising a frame (4), characterized in that: A first positioning mechanism for fixing the oil pan (1) is provided at the top of the frame (4). The first positioning mechanism includes a turntable (6) rotatably connected to the top of the frame (4) through a first rotating shaft (19). An imitation positioning seat (22) that is adapted to the inner cavity of the oil pan (1) and is used for positioning and supporting the oil pan (1) is rotatably connected to the outer periphery of the top of the turntable (6) through a second rotating shaft (30). And the axis of the second rotating shaft (30) coincides with the axis of the through hole (3) of the oil pan (1) on the imitation positioning seat (22). A welding mechanism is provided on one side of the top of the frame (4). The welding mechanism includes a welding frame (5) provided on one side of the top of the frame (4). A welding torch holder (17) is provided at the upper end of the welding frame (5). A welding torch (18) is provided on the welding torch holder (17). And the electrode at the lower end of the welding torch (18) corresponds to the imitation positioning seat (22). It further includes a driving mechanism for driving the turntable (6) and the imitation positioning seat (22) to rotate. The driving mechanism includes a second gear (27) fixedly provided on the outer side of the lower end of the first rotating shaft (19). A vertical shaft (9) is vertically rotatably connected to one end of the top of the frame (4). A first incomplete gear (10) corresponding to and adapted to the second gear (27) is fixedly provided on the outer side of the lower end of the vertical shaft (9). The lower end of the second rotating shaft (30) extends to the bottom of the turntable (6) and is fixedly provided with a first gear (20). A second incomplete gear (28) corresponding to and adapted to the first gear (20) is fixedly provided on the outer side of the lower end of the vertical shaft (9). And the teeth on the second incomplete gear (28) are arranged opposite to the teeth on the first incomplete gear (10). And it is configured that when the teeth on the first incomplete gear (10) are separated from the teeth on the second gear (27), the teeth on the second incomplete gear (28) just start to mesh with the first gear (20). After the teeth on the second incomplete gear (28) are separated from the first gear (20), the teeth on the first incomplete gear (10) mesh with the second gear (27). And at this time, one of the imitation positioning seats (22) corresponds to the welding torch (18). And when the teeth on the second incomplete gear (28) mesh with and are separated from the first gear (20), the first gear (20) just rotates one week. A speed reducer (14) for driving the vertical shaft (9) to rotate is provided at the bottom of the frame (4). An adjusting mechanism for adjusting the inclination angle of the welding torch (18) is provided at the upper end of the welding frame (5). The adjusting mechanism includes a mounting frame (23) fixedly arranged at the upper end of the welding frame (5). The lower end of the welding torch holder (17) is movably connected to the lower end of one side of the mounting frame (23). The upper end of the vertical shaft (9) extends to the upper end of the welding frame (5) and is fixedly provided with a guide wheel (24) corresponding to the welding torch holder (17). Curved grooves (53) are arranged on the peripheries of the top and bottom of the guide wheel (24). One end of the curved groove (53) is arc-shaped, and the other end is wavy, and the arc shape and the wavy shape form a closed ring structure, and the wavy shape corresponds to the tooth area of the second incomplete gear (28). A sliding seat (56) is slidably connected along the vertical direction on the side of the welding torch holder (17) close to the mounting frame (23). A traction arm (54) is movably connected to the sliding seat (56). The end of the traction arm (54) far from the sliding seat (56) extends to the side of the mounting frame (23) far from the welding torch holder (17), and the end of the traction arm (54) far from the welding torch holder (17) is in a "U" shape structure, and a first guide wheel (55) adapted to the curved groove (53) is rotatably connected inside the "U" shape structure, and the first guide wheel (55) is rotatably connected in the curved groove (53).

2. The automated welding equipment for the oil pan oil outlet according to claim 1, characterized in that: The profiling positioning seats (22) are evenly distributed on the outer periphery of the top of the turntable (6), and the oil pan (1) is fixed on the profiling positioning seats (22) by an inverted buckling method; There is a gap between the vertical shaft (9) and the turntable (6), and the gap is configured such that when the profiling positioning seat (22) drives the oil pan (1) to rotate, the oil pan (1) will not contact the vertical shaft (9).

3. An automated welding device for the oil drain outlet of an oil pan, as described in claim 1, characterized in that: A feeding mechanism for feeding the plug seat (2) is provided at one end of the top of the machine frame (4). The feeding mechanism includes a storage cylinder (13) arranged at one end of the top of the machine frame (4) through a first fixing frame (8). The storage cylinder (13) is arranged vertically, and the storage cylinder (13) is located on the top of the turntable (6) and corresponds to the profiling positioning seat (22). The storage cylinder (13) is used for stacking and storing the plug seats (2). A hollow bottom shell (47) is arranged at the bottom of the storage cylinder (13). A first dropping hole (50) is arranged at the corresponding position of the top of the bottom shell (47) and the storage cylinder (13). A feeding arm (46) is slidably connected inside the bottom shell (47). A third spring (49) is arranged between the feeding arm (46) and the inner wall of one end of the inner cavity of the bottom shell (47). A receiving hole (51) with the same inner diameter as the first dropping hole (50) is arranged at the end of the feeding arm (46) close to the third spring (49), and the receiving hole (51) coincides with the first dropping hole (50) in the initial state of the third spring (49). A second dropping hole (52) with an inner diameter larger than the inner diameter of the receiving hole (51) is arranged at one end of the bottom of the bottom shell (47) close to the third spring (49), and the second dropping hole (52) corresponds to the through hole (3) of the oil pan (1) on the profiling positioning seat (22); One end of the top of the frame (4) close to the first fixing frame (8) is provided with a third rotating shaft (44) through a second fixing frame (11). The third rotating shaft (44) is rotatably connected to the second fixing frame (11). A third gear (41) corresponding to and adapted to the first incomplete gear (10) is fixedly arranged on the outer side of the lower end of the third rotating shaft (44), and is configured such that when the first incomplete gear (10) meshes with and then separates from the third gear (41), the third gear (41) just rotates one week. A cam (45) is fixedly arranged at the upper end of the third rotating shaft (44). One end of the feeding arm (46) away from the third spring (49) extends to the outside of the bottom shell (47) and corresponds to the cam (45), and is configured such that when the cam (45) rotates, it will contact one end of the feeding arm (46), so that the feeding arm (46) is driven by the cam (45) to displace and compress the third spring (49), and when the displacement reaches the maximum distance, the receiving hole (51) will coincide with the second dropping hole (52). One side of the bottom shell (47) is provided with a force-applying block (48). One end of the bottom of the force-applying block (48) is chamfered, and the force-applying block (48) is arc-shaped and corresponds to the through hole (3) of the oil pan (1) on the profiling positioning seat (22).

4. An automated welding device for the oil drain outlet of an oil pan, characterized in that: One end of the top of the profiling positioning seat (22) is provided with a second positioning mechanism for positioning and guiding the plug support (2). The second positioning mechanism includes a positioning table (38) arranged on the top of the profiling positioning seat (22) corresponding to the through hole (3) on the oil pan (1). The upper end of the positioning table (38) is conical, and the lower end is cylindrical. The diameter of the cylindrical part is adapted to the inner diameter of the plug support (2). The lower end of the positioning table (38) is located in the through hole (3) on the oil pan (1), and the gap between the lower end of the positioning table (38) and the through hole (3) is larger than the wall thickness of the plug support (2). A trapezoidal block (39) with a trapezoidal cross-section is movably connected to the inner side of the side wall of the lower end of the positioning table (38). A second spring (40) is arranged between the trapezoidal block (39) and the inner side of the side wall of the positioning table (38). One end of the trapezoidal block (39) protrudes from the side wall of the positioning table (38) in the reset state of the second spring (40).

5. An automatic welding device for the oil pan oil outlet according to claim 1, characterized in that: It further includes a fixing component for locking the second rotating shaft (30). The fixing component includes a limiting ring (7) arranged on the periphery of the turntable (6). There is a gap between the limiting ring (7) and the turntable (6). One end of the limiting ring (7) close to the welding frame (5) is provided with an opening, and chamfers are arranged on both sides of the opening. A slideway (34) corresponding to the profiling positioning seat (22) one by one is arranged on the side wall of the turntable (6). A locking arm (36) corresponding to the second rotating shaft (30) and used for locking the second rotating shaft (30) is slidably connected to the inner side of the slideway (34). One end of the locking arm (36) far from the second rotating shaft (30) is rotatably connected with a roller (33) for rolling cooperation with the inner side of the limiting ring (7). A convex block (35) is arranged on the inner wall of the slideway (34), and a first spring (37) is arranged between the convex block (35) and the side wall of one end of the locking arm (36) close to the roller (33). In the initial state of the first spring (37), the roller (33) protrudes from the side wall of the turntable (6), and at this time, the locking arm (36) is not in contact with the second rotating shaft (30). The notch on the limiting ring (7) is larger than the diameter of the roller (33), and the position of the notch is configured such that when the teeth of the second incomplete gear (28) mesh with the first gear (20), the roller (33) just pops out from the notch. At this time, the second rotating shaft (30) is unlocked. When the teeth of the second incomplete gear (28) are separated from the first gear (20), the roller (33) is restricted by the inner wall of the limiting ring (7) to move inward, driving the locking arm (36) to lock the second rotating shaft (30).

6. An automated welding device for the oil sump oil outlet according to claim 3, characterized in that: A first braking component for braking the first rotating shaft (19) is arranged on the top of the frame (4). The first braking component includes a first disc (15) arranged on the outer side of the lower end of the first rotating shaft (19). A first arc-shaped notch (16) corresponding to the profiling positioning seat (22) one by one is arranged on the outer side of the first disc (15). A first braking disc (21) in a fan shape corresponding to the first disc (15) is fixedly arranged on the outer side of the lower end of the vertical shaft (9). The first braking disc (21) is adapted to the first arc-shaped notch (16), and is configured such that after the teeth on the first incomplete gear (10) are separated from the second gear (27), the first braking disc (21) enters one of the corresponding first arc-shaped notches (16), and when the first incomplete gear (10) starts to mesh with the second gear (27), the first braking disc (21) separates from the first arc-shaped notch (16).

7. An automatic welding device for the oil drain outlet of an oil pan, characterized in that: There are multiple groups of teeth on the second incomplete gear (28), and the number of each group is two. The gap between adjacent groups of teeth is larger than the width of at least one tooth.

8. An automated welding device for the oil pan oil outlet according to claim 7, characterized in that: A second braking assembly for braking the second rotating shaft (30) is provided below the turntable (6). The second braking assembly includes a second disc (31) fixedly arranged on the outer side of the lower end of the second rotating shaft (30). Second arc-shaped notches (32) are uniformly arranged on the side wall of the second disc (31). A second brake disc (25) corresponding to the second disc (31) is arranged on the outer side of the lower end of the vertical shaft (9). A fan-shaped brake plate (26) is arranged on the outer side of the second brake disc (25). The brake plate (26) is adapted to the second arc-shaped notch (32). A plurality of brake plates (26) are centrally distributed in a fan shape. The plurality of brake plates (26) are arranged at intervals from multiple sets of teeth on the second incomplete gear (28). The brake plate (26) is configured such that when one of the sets of teeth on the second incomplete gear (28) is separated from the first gear (20), a corresponding brake plate (26) enters the second arc-shaped notch (32).

9. An automatic welding device for the oil drain port of an oil pan, characterized in that: A third disc (42) corresponding to the first brake disc (21) is fixedly arranged on the outer side of the lower end of the third rotating shaft (44). A third arc-shaped notch (43) adapted to the first brake disc (21) is arranged on the side wall of the third disc (42). It is configured such that when the first incomplete gear (10) is separated from the third gear (41), the first brake disc (21) enters the third arc-shaped notch (43), and when the first incomplete gear (10) starts to mesh with the third gear (41), the first brake disc (21) separates from the third arc-shaped notch (43).

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