A welding device for automotive parts production

Abstract

The present invention relates to the field of part welding correction, and particularly to a welding device for automobile part production. The technical problem to be solved is that the positions of the manifold and the muffler need to be adjusted multiple times before welding, and during the process of fixing the manifold and the muffler, relative displacement is likely to occur between the manifold and the muffler, and it is not very convenient to weld the position of the joint between the manifold and the muffler facing the ground. A welding device for automobile part production includes a bottom plate, support legs, a cylinder body, etc.; two support legs are installed on the bottom plate, and a cylinder body is installed between the two support legs. In the present invention, after the alignment frame moves into contact with one side of the muffler body and drives the muffler body to move, the other side of the muffler body is closely attached to the semi-circular support plate, and after the arc-shaped rubber plate swings and contacts the upper part of the muffler body, the muffler body can be pressed, corrected and fixed, so that the muffler body can be positioned and fixed in multiple directions.

Description

Technical Field

[0001] The present invention relates to the field of part welding correction, and particularly to a welding device for automobile part production. Background Art

[0002] Automobile mufflers are usually connected to purifiers through manifolds. The shape of the muffler is relatively complex, and the material is mostly made of stainless steel. The manifold structure connected to the muffler and the purifier is also relatively complex. In order to accurately align the manifold and the muffler, the positions of the manifold and the muffler need to be adjusted multiple times before welding. Currently, after the manifold and the muffler are aligned, fixtures are required for fixation. During the fixation process, the manifold and the muffler are prone to relative displacement. Moreover, currently, the positions of the manifold and the muffler are generally fixed, and it is not very convenient to weld the position where the manifold and the muffler are attached facing the ground. Summary of the Invention

[0003] In order to overcome the drawbacks that the positions of the manifold and the muffler need to be adjusted multiple times before welding, the manifold and the muffler are prone to relative displacement during the fixation process, and it is not very convenient to weld the position where the manifold and the muffler are attached facing the ground, the purpose of the present invention is to provide a welding device for automobile part production, which can accurately correct and fix the manifold and the muffler, avoid the occurrence of relative displacement of the manifold and the muffler during the fixation process, can more conveniently weld the manifold and the muffler, and improve the welding quality and efficiency of the manifold and the muffler.

[0004] The technical solution of the present invention is: a welding device for automobile part production, including a bottom plate, support legs, a cylinder body, a driving mechanism, and a clamping mechanism. Two support legs are installed on the bottom plate, a cylinder body is installed between the two support legs, a driving mechanism is provided on the bottom plate and the cylinder body, and the driving mechanism is used to drive the muffler body and the manifold to rotate. A clamping mechanism is provided on the cylinder body, and the clamping mechanism is used to clamp the manifold.

[0005] Preferably, the driving mechanism includes a hollow tube, a semi-circular support plate, a servo motor, and a transmission component. A hollow tube is rotatably provided on the cylinder body, a semi-circular support plate is installed on one side of the hollow tube, the semi-circular support plate is located inside the cylinder body, the muffler body is placed inside the semi-circular support plate, a servo motor is installed on one side of the top of the bottom plate, and a transmission component is connected between the output shaft of the servo motor and the other side of the hollow tube.

[0006] Preferably, the transmission component is composed of two belt pulleys and a flat belt. One of the belt pulleys is connected to the output shaft of the servo motor, the other belt pulley is connected to the other side of the hollow tube, and a flat belt is wound between the two belt pulleys.

[0007] Preferably, the clamping mechanism includes an electric push rod, a guide ring, a rotating frame, a connecting frame, a lower bracket, an upper pressing frame, a return spring, a double-acting plug rod, and a guide seat. An electric push rod is installed on each of the two opposite outer sides of the cylinder body. A guide ring is installed between the telescopic rods of the two electric push rods. A rotating frame is slidably arranged on the guide ring. Two connecting frames are installed on the rotating frame. A lower bracket is fixedly installed between one sides of the two connecting frames. An upper pressing frame is slidably arranged between the two connecting frames. A return spring is respectively connected between the two sides of the upper pressing frame and the two connecting frames. A manifold is clamped between the lower bracket and the upper pressing frame. A double-acting plug rod is fixedly installed at the bottom of the lower bracket. A guide seat is installed on one side of the bottom of the semi-circular support plate. The double-acting plug rod slidably passes through the guide seat.

[0008] Preferably, an alignment mechanism is further included. The alignment mechanism is arranged on the support legs, the hollow tube, the semi-circular support plate, and the rotating frame. The alignment mechanism is used to align the silencer body. The alignment mechanism includes a sliding frame, a sliding shaft, and an alignment frame. A sliding frame is slidably arranged between the two support legs. A sliding shaft is slidably arranged on the hollow tube. One side of the sliding frame is rotatably connected to the rotating frame. The other side of the sliding frame is rotatably connected to one end of the sliding shaft. An alignment frame is slidably arranged on the semi-circular support plate. One side of the alignment frame is slidably connected to the hollow tube. The side of the alignment frame located inside the hollow tube is connected to the other end of the sliding shaft.

[0009] Preferably, a pressing-down mechanism is further included. The pressing-down mechanism is arranged on the hollow tube and the sliding shaft. The pressing-down mechanism is used to press down the silencer body. The pressing-down mechanism includes a horizontal shaft, a swinging frame, an arc-shaped rubber plate, a column gear, a torsion spring, a rack frame, and a horizontal bolt. A horizontal shaft is rotatably arranged on the hollow tube. An arc-shaped rubber plate is fixedly installed at the other end of the swinging frame which passes through the hollow tube. A column gear is respectively installed on both sides of the horizontal shaft. A torsion spring is respectively connected between the two column gears and the two sides of the hollow tube. A horizontal bolt is threadedly connected to one side of the sliding shaft. A rack frame is slidably arranged on the other side of the sliding shaft. One end of the horizontal bolt is rotatably connected to the rack frame.

[0010] Preferably, the rack frame is located on one side of the two column gears.

[0011] Preferably, a movable side plate and side adjustment bolts are further included. A movable side plate is slidably arranged on one side of the semi-circular support plate. Two side adjustment bolts are threadedly connected to one side of the semi-circular support plate. One ends of the two side adjustment bolts are rotatably connected to the movable side plate.

[0012] Preferably, a bottom adjustment plate and bottom adjustment bolts are further included. Two bottom adjustment plates are slidably arranged at the bottom of the semi-circular support plate. Four bottom adjustment bolts are threadedly connected to the bottom of the semi-circular support plate. Two of the bottom adjustment bolts are rotatably connected to one of the bottom adjustment plates, and the other two bottom adjustment bolts are rotatably connected to the other bottom adjustment plate.

[0013] Preferably, an adjustment mechanism is further included. The adjustment mechanism is arranged on the connecting frame and the upper pressing frame. The adjustment mechanism is used to adjust the position of the manifold. The adjustment mechanism includes a vertical shaft, clamping plates, torsion springs and contact rollers. A vertical shaft is respectively installed at the bottom of each of the two connecting frames. A clamping plate is rotatably provided on each of the two vertical shafts. The two clamping plates are symmetrically arranged. A torsion spring is respectively connected between each of the two clamping plates and the bottom of each of the two connecting frames. The two torsion springs are respectively wound around the two vertical shafts. Two contact rollers are rotatably provided on the upper pressing frame. The two contact rollers are respectively in contact with one side of the two clamping plates.

[0014] The beneficial effects of the present invention are as follows: 1. After the alignment frame moves and contacts one side of the muffler body, it drives the muffler body to move, so that the other side of the muffler body is closely attached to the semi-circular supporting plate. After the arc-shaped rubber plate swings and contacts the upper part of the muffler body, the muffler body can be pressed, corrected and fixed. In this way, the muffler body can be positioned and fixed in multiple directions. Then, the servo motor drives the positioned, fitted and fixed muffler body and the manifold to rotate slowly synchronously, and the operator can weld the muffler body and the manifold. When welding, the fixed muffler body and manifold are not prone to relative displacement, and at the same time, they can be aligned more precisely. In this way, the welding quality and efficiency of the muffler body and the manifold can be improved, and it is also more convenient to weld the muffler body and the manifold.

[0015] 2. By rotating the side adjustment bolt and the bottom adjustment bolt, the positions of the movable side plate and the bottom adjustment plate can be adjusted. Then, rotate the horizontal bolt forward and backward. When the horizontal bolt rotates forward, it drives the rack frame to move away from the column gear. When the horizontal bolt rotates backward, it drives the rack frame to move closer to the column gear. In this way, the meshing timing of the rack frame and the column gear can be adjusted, and then the swinging amplitude of the arc-shaped rubber plate can be adjusted, so as to adapt to muffler bodies of different sizes, and the applicable range of the device is wider. At the same time, the fastening position of the muffler body can be finely adjusted, so that the muffler body and the manifold are aligned more precisely, and the welding quality of the muffler body and the manifold is further improved.

[0016] 3. By driving the two contact rollers to move through the upper pressing frame, after the two contact rollers respectively contact the two clamping plates, the sides of the two clamping plates away from the vertical shaft move towards each other, and the torsion springs twist accordingly. The two clamping plates can correct and position the manifold, so as to adjust the position of the manifold, make the manifold align more precisely with the muffler body, and further improve the welding quality of the muffler body and the manifold. Description of the Drawings

[0017] Figure 1 It is a three-dimensional structural schematic diagram of the clamping mechanism of the present invention.

[0018] Figure 2Schematic three-dimensional structure diagram of the driving mechanism of the present invention.

[0019] Figure 3 Schematic three-dimensional structure diagram of the outrigger, cylinder, muffler body, and manifold of the present invention.

[0020] Figure 4 Schematic bottom three-dimensional structure diagram of the present invention.

[0021] Figure 5 Schematic exploded three-dimensional structure diagram of some parts of the clamping mechanism of the present invention.

[0022] Figure 6 Schematic three-dimensional structure diagram of the driving mechanism and clamping mechanism of the present invention.

[0023] Figure 7 Schematic three-dimensional structure diagram of the downward pressing mechanism of the present invention.

[0024] Figure 8 Schematic three-dimensional structure diagram of the manifold, lower bracket, and upper pressing frame of the present invention.

[0025] Figure 9 Schematic three-dimensional structure diagram of the downward pressing mechanism of the present invention.

[0026] Figure 10 Schematic three-dimensional structure diagram of the semi-circular support plate, movable side plate, side adjustment bolt, bottom adjustment plate, and bottom adjustment bolt of the present invention.

[0027] Figure 11 Schematic three-dimensional structure diagram of the alignment mechanism and downward pressing mechanism of the present invention.

[0028] Figure 12 Schematic three-dimensional structure diagram of the downward pressing mechanism of the present invention.

[0029] Figure 13 Schematic three-dimensional structure diagram of the hollow tube and downward pressing mechanism of the present invention.

[0030] Figure 14 Schematic exploded three-dimensional structure diagram of some parts of the downward pressing mechanism and adjustment mechanism of the present invention.

[0031] Figure 15 Schematic three-dimensional structure diagram of the adjustment mechanism of the present invention.

[0032] Description of reference numerals: 1 - bottom plate, 2 - support leg, 3 - cylinder body, 4 - silencer body, 5 - manifold, 61 - hollow tube, 62 - semi-circular support plate, 63 - servo motor, 64 - transmission assembly, 71 - electric push rod, 72 - guide ring, 73 - rotating frame, 74 - connecting frame, 75 - lower bracket, 76 - upper pressing frame, 77 - return spring, 78 - double-acting insertion rod, 79 - guide seat, 81 - sliding frame, 82 - sliding shaft, 83 - alignment frame, 91 - horizontal shaft, 92 - swinging frame, 921 - arc-shaped rubber plate, 93 - cylindrical gear, 94 - torsion spring, 95 - rack frame, 96 - horizontal bolt, 10 - movable side plate, 11 - side adjustment bolt, 12 - bottom adjustment plate, 13 - bottom adjustment bolt, 141 - vertical shaft, 142 - clamping plate, 143 - torsion spring, 144 - contact roller. Detailed implementation mode

[0033] The present invention will be further described below in conjunction with the drawings and the detailed implementation mode.

[0034] Embodiment 1: A welding device for manufacturing automobile parts, as Figures 1-9 shown, includes a bottom plate 1, support legs 2, a cylinder body 3, a driving mechanism and a clamping mechanism. Two support legs 2 are installed on the bottom plate 1, a cylinder body 3 is installed between the two support legs 2, a driving mechanism is provided on the bottom plate 1 and the cylinder body 3, and the driving mechanism is used to drive the silencer body 4 and the manifold 5 to rotate. A clamping mechanism is provided on the cylinder body 3, and the clamping mechanism is used to clamp the manifold 5.

[0035] The driving mechanism includes a hollow tube 61, a semi-circular support plate 62, a servo motor 63 and a transmission assembly 64. A hollow tube 61 is rotatably provided on the cylinder body 3 through a bearing. A semi-circular support plate 62 is installed on one side of the hollow tube 61. The semi-circular support plate 62 is located inside the cylinder body 3. The silencer body 4 is placed inside the semi-circular support plate 62. A servo motor 63 is installed on one side of the top of the bottom plate 1 by screws. A transmission assembly 64 is connected between the output shaft of the servo motor 63 and the other side of the hollow tube 61.

[0036] The transmission assembly 64 is composed of two belt pulleys and a flat belt. One of the belt pulleys is connected to the output shaft of the servo motor 63, the other belt pulley is connected to the other side of the hollow tube 61, and a flat belt is wound between the two belt pulleys.

[0037] The clamping mechanism includes an electric push rod 71, a guide ring 72, a rotating frame 73, a connecting frame 74, a lower bracket 75, an upper pressing frame 76, a return spring 77, a double-acting plug rod 78 and a guide seat 79. An electric push rod 71 is respectively installed on two opposite outer sides of the cylinder body 3. A guide ring 72 is fixedly installed between the telescopic rods of the two electric push rods 71. A rotating frame 73 is slidably arranged on the guide ring 72. Two connecting frames 74 are installed on the rotating frame 73. A lower bracket 75 is fixedly installed between one sides of the two connecting frames 74 by screws. An upper pressing frame 76 is slidably arranged between the two connecting frames 74. A return spring 77 is respectively connected between the two sides of the upper pressing frame 76 and the two connecting frames 74. A manifold 5 is clamped between the lower bracket 75 and the upper pressing frame 76. A double-acting plug rod 78 is fixedly installed at the bottom of the lower bracket 75. A guide seat 79 is installed on one side of the bottom of the semi-circular support plate 62. The double-acting plug rod 78 slidably passes through the guide seat 79.

[0038] It further includes an alignment mechanism. The alignment mechanism is arranged on the legs 2, the hollow tube 61, the semi-circular support plate 62 and the rotating frame 73. The alignment mechanism is used to align the silencer body 4. The alignment mechanism includes a sliding frame 81, a sliding shaft 82 and an alignment frame 83. A sliding frame 81 is slidably arranged between the two legs 2. The sliding frame 81 slides horizontally along the two legs 2. A sliding shaft 82 is slidably arranged on the hollow tube 61. One side of the sliding frame 81 is rotatably connected to the rotating frame 73. The other side of the sliding frame 81 is rotatably connected to one end of the sliding shaft 82. An alignment frame 83 is slidably arranged on the semi-circular support plate 62. One side of the alignment frame 83 is slidably connected to the hollow tube 61. The side of the alignment frame 83 located inside the hollow tube 61 is connected to the other end of the sliding shaft 82.

[0039] It further includes a pressing-down mechanism. The pressing-down mechanism is arranged on the hollow tube 61 and the sliding shaft 82. The pressing-down mechanism is used to press down the silencer body 4. The pressing-down mechanism includes a horizontal shaft 91, a swinging frame 92, an arc-shaped rubber plate 921, a column gear 93, a torsion spring 94, a rack frame 95 and a horizontal bolt 96. A horizontal shaft 91 is rotatably arranged on the hollow tube 61 through a bearing. A swinging frame 92 is fixedly installed in the middle of the horizontal shaft 91. The swinging frame 92 passes through the hollow tube 61. An arc-shaped rubber plate 921 is installed at the other end of the swinging frame 92. A column gear 93 is respectively installed on both sides of the horizontal shaft 91. A torsion spring 94 is respectively connected between the two column gears 93 and the two sides of the hollow tube 61. One side of the sliding shaft 82 is threadedly connected to a horizontal bolt 96. A rack frame 95 is slidably arranged on the other side of the sliding shaft 82. One end of the horizontal bolt 96 is rotatably connected to the rack frame 95.

[0040] The rack frame 95 is located on one side of the two column gears 93.

[0041] The operator first pulls the upper pressing frame 76 to move away from the lower bracket 75, and the return spring 77 is compressed accordingly. Then the operator places the manifold 5 on the lower bracket 75. Then the operator releases the upper pressing frame 76. Under the action of the return spring 77, the upper pressing frame 76 moves towards the lower bracket 75, and the lower bracket 75 and the upper pressing frame 76 clamp the manifold 5. Then the operator places the silencer body 4 on the semi-circular supporting plate 62. Then the operator controls the telescopic rods of the two electric push rods 71 to shorten. The telescopic rods of the two electric push rods 71 drive the guide ring 72, the rotating frame 73, the connecting frame 74, the lower bracket 75, the upper pressing frame 76, the return spring 77, the double-activity insertion rod 78 and the manifold 5 to move towards the silencer body 4. The double-activity insertion rod 78 slides in the guide seat 79. When the manifold 5 is in contact with one side of the silencer body 4, the operator controls the telescopic rods of the two electric push rods 71 to stop moving. The rotating frame 73 moves towards the silencer body 4 and drives the sliding frame 81 to move. The sliding frame 81 drives the sliding shaft 82 and the alignment frame 83 to move. After the alignment frame 83 moves and contacts one side of the silencer body 4, it drives the silencer body 4 to move, so that the other side of the silencer body 4 is closely attached to the semi-circular supporting plate 62; the sliding shaft 82 moves and drives the rack frame 95 and the horizontal bolt 96 to move. After the rack frame 95 meshes with the two column gears 93, the two column gears 93 will rotate. The column gears 93 drive the horizontal shaft 91, the swing frame 92 and the arc-shaped rubber plate 921 to swing, and the torsion spring 94 twists accordingly. After the arc-shaped rubber plate 921 swings, it contacts the upper part of the silencer body 4, so that the silencer body 4 can be pressed, corrected and fixed. At this time, the operator starts the servo motor 63 to rotate slowly, and drives the hollow tube 61, the semi-circular supporting plate 62 and the silencer body 4 to rotate through the transmission assembly 64. Since the double-activity insertion rod 78 is slidably connected to the guide seat 79, the double-activity insertion rod 78 can drive the rotating frame 73, the connecting frame 74, the lower bracket 75, the upper pressing frame 76, the return spring 77 and the manifold 5 to rotate synchronously. The rotation of the hollow tube 61 drives the horizontal shaft 91, the swing frame 92, the arc-shaped rubber plate 921, the column gears 93, the torsion spring 94, the rack frame 95 and the horizontal bolt 96 to rotate; after the alignment frame 83 moves and contacts one side of the silencer body 4, it drives the silencer body 4 to move, so that the other side of the silencer body 4 is closely attached to the semi-circular supporting plate 62. After the arc-shaped rubber plate 921 swings, it contacts the upper part of the silencer body 4, so that the silencer body 4 can be pressed, corrected and fixed. In this way, the silencer body 4 can be positioned and fixed in multiple directions. Then the servo motor 63 drives the positioned, fitted and fixed silencer body 4 and the manifold 5 to rotate slowly synchronously, and the operator can weld the silencer body 4 and the manifold 5. When welding, the fixed silencer body 4 and the manifold 5 are not prone to relative displacement, and they can also be aligned more precisely. In this way, the welding quality of the silencer body 4 and the manifold 5 can be improved, and it is also more convenient to weld the silencer body 4 and the manifold 5;After welding is completed, the operator turns off the servo motor 63, and then the operator controls the telescopic rods of the two electric push rods 71 to extend. The telescopic rods of the two electric push rods 71 drive the guide ring 72, the rotating frame 73, the connecting frame 74, the lower bracket 75, the upper pressing frame 76, the return spring 77, the double-activity insertion rod 78 and the manifold 5 to move away from the muffler body 4. The double-activity insertion rod 78 slides reversely in the guide seat 79. The movement of the rotating frame 73 away from the muffler body 4 drives the sliding frame 81 to move. The sliding frame 81 drives the sliding shaft 82 and the alignment frame 83 to move. The welded muffler body 4 and the manifold 5 move synchronously towards the guide ring 72. The movement of the sliding shaft 82 drives the rack frame 95 and the horizontal bolt 96 to move. The rack frame 95 drives the two column gears 93 to rotate reversely. The column gears 93 drive the horizontal shaft 91, the swing frame 92 and the arc-shaped rubber plate 921 to swing reversely. After the rack frame 95 is separated from the two column gears 93, under the action of the torsion spring 94, the arc-shaped rubber plate 921 swings reversely and separates from the upper part of the muffler body 4. The operator then pulls the upper pressing frame 76 to move away from the lower bracket 75, and the return spring 77 is compressed accordingly. Then the operator takes out the manifold 5 of the welded muffler body 4, and then releases the upper pressing frame 76. Under the action of the return spring 77, the upper pressing frame 76 moves towards the lower bracket 75 to reset.;

[0042] Embodiment 2: On the basis of Embodiment 1, as Figures 9-14 shown, it further includes a movable side plate 10 and side adjustment bolts 11. One movable side plate 10 is slidably provided on one side of the semi-circular supporting plate 62. Two side adjustment bolts 11 are threadedly connected to one side of the semi-circular supporting plate 62. One end of the two side adjustment bolts 11 is rotatably connected to the movable side plate 10.

[0043] It further includes a bottom adjustment plate 12 and bottom adjustment bolts 13. Two bottom adjustment plates 12 are slidably provided at the bottom of the semi-circular supporting plate 62. Four bottom adjustment bolts 13 are threadedly connected to the bottom of the semi-circular supporting plate 62. Two of the bottom adjustment bolts 13 are rotatably connected to one of the bottom adjustment plates 12, and the other two bottom adjustment bolts 13 are rotatably connected to the other bottom adjustment plate 12.

[0044] The operator can rotate the two side adjusting bolts 11 forward and backward according to the size of the muffler body 4. When the two side adjusting bolts 11 rotate forward, they drive the movable side plate 10 to move away from the hollow tube 61. When the two side adjusting bolts 11 rotate backward, they drive the movable side plate 10 to move closer to the hollow tube 61. Rotate the four bottom adjusting bolts 13 forward and backward. When the four bottom adjusting bolts 13 rotate forward, they drive the bottom adjusting plate 12 to move away from the bottom plate 1. When the four bottom adjusting bolts 13 rotate backward, they drive the bottom adjusting plate 12 to move closer to the bottom plate 1. In this way, the size of the muffler body 4 that the semi-circular support plate 62 can accommodate can be adjusted. Then, operate and rotate the horizontal bolt 96 forward and backward. When the horizontal bolt 96 rotates forward, it drives the rack frame 95 to move away from the column gear 93. When the horizontal bolt 96 rotates backward, it drives the rack frame 95 to move closer to the column gear 93. In this way, the meshing timing of the rack frame 95 and the column gear 93 can be adjusted, and further the swinging amplitude of the arc-shaped rubber plate 921 can be adjusted; by rotating the side adjusting bolts 11 and the bottom adjusting bolts 13, the positions of the movable side plate 10 and the bottom adjusting plate 12 can be adjusted. Then, rotate the horizontal bolt 96 forward and backward again. When the horizontal bolt 96 rotates forward, it drives the rack frame 95 to move away from the column gear 93. When the horizontal bolt 96 rotates backward, it drives the rack frame 95 to move closer to the column gear 93. In this way, the meshing timing of the rack frame 95 and the column gear 93 can be adjusted, and further the swinging amplitude of the arc-shaped rubber plate 921 can be adjusted, so as to adapt to muffler bodies 4 of different sizes, make the applicable range of this device wider, and at the same time, the fastening position of the muffler body 4 can be finely adjusted to make the alignment of the muffler body 4 and the manifold 5 more accurate, and further improve the welding quality of the muffler body 4 and the manifold 5.

[0045] Embodiment 3: On the basis of Embodiment 2, as Figures 13-15 shown, it further includes an adjustment mechanism. The adjustment mechanism is arranged on the connecting frame 74 and the upper pressing frame 76. The adjustment mechanism is used to adjust the position of the manifold 5. The adjustment mechanism includes a vertical shaft 141, a clamping plate 142, a torsion spring 143 and a contact roller 144. A vertical shaft 141 is fixedly installed at the bottom of each of the two connecting frames 74. A clamping plate 142 is rotatably provided on each of the two vertical shafts 141 through bearings. The two clamping plates 142 are symmetrically arranged. A torsion spring 143 is respectively connected between the two clamping plates 142 and the bottom of the two connecting frames 74. The two torsion springs 143 are respectively wound around the two vertical shafts 141. Two contact rollers 144 are rotatably provided on the upper pressing frame 76. The two contact rollers 144 are respectively in contact with one side of the two clamping plates 142.

[0046] After the manifold 5 is placed on the lower bracket 75, the manifold 5 is located between the two clamping plates 142. When the upper pressing frame 76 moves towards the muffler body 4, the two contact rollers 144 are driven to move. After the two contact rollers 144 respectively contact the two clamping plates 142, the sides of the two clamping plates 142 away from the vertical shaft 141 move towards each other, and the torsion spring 143 twists accordingly. The two clamping plates 142 can then correct and position the manifold 5, thereby adjusting the position of the manifold 5 so that the manifold 5 can be more accurately aligned with the muffler body 4, and further improving the welding quality of the muffler body 4 and the manifold 5. When the upper pressing frame 76 moves away from the muffler body 4, the two contact rollers 144 are driven to move. After the two contact rollers 144 are separated from the two clamping plates 142, under the action of the torsion spring 143, the sides of the two clamping plates 142 away from the vertical shaft 141 move away from each other, and the two clamping plates 142 can be separated from the manifold 5.

[0047] The embodiments of the present invention have been described in detail above with reference to the accompanying drawings. However, the present invention is not limited to the above embodiments. Within the scope of knowledge possessed by those skilled in the art, various changes can be made without departing from the spirit of the present invention.

Claims

1. A welding device for automobile parts production, characterized in that: The invention comprises a base plate (1), legs (2), a cylinder (3), a driving mechanism and a clamping mechanism, wherein two legs (2) are mounted on the base plate (1), a cylinder (3) is mounted between the two legs (2), a driving mechanism is provided on the base plate (1) and the cylinder (3), the driving mechanism is used to drive the muffler body (4) and the manifold (5) to rotate, and a clamping mechanism is provided on the cylinder (3), the clamping mechanism is used to clamp the manifold (5); The clamping mechanism comprises an electric push rod (71), a guide ring (72), a rotating frame (73), a connecting frame (74), a lower bracket (75), an upper pressing frame (76), a return spring (77), a double movable plug rod (78) and a guide seat (79). An electric push rod (71) is respectively installed on two opposite outer sides of the cylinder (3). A guide ring (72) is installed between the telescopic rods of the two electric push rods (71). A rotating frame (73) is slidably provided on the guide ring (72). Two connecting frames (74) are installed on the rotating frame (73). The two connecting frames A lower bracket (75) is fixedly installed between one side and the other side of the half-arc support plate (62); an upper pressing frame (76) is slidably provided between the two connecting frames (74); a return spring (77) is respectively connected between the two sides of the upper pressing frame (76) and the two connecting frames (74); a manifold (5) is clamped between the lower bracket (75) and the upper pressing frame (76); a double movable plug rod (78) is fixedly installed at the bottom of the lower bracket (75); a guide seat (79) is installed at one side of the bottom of the semi-arc support plate (62); and the double movable plug rod (78) slides through the guide seat (79); The driving mechanism comprises a hollow tube (61), a semi-arc support plate (62), a servo motor (63) and a transmission assembly (64); a hollow tube (61) is rotatably provided on the cylinder (3); a semi-arc support plate (62) is mounted on one side of the hollow tube (61); the semi-arc support plate (62) is located inside the cylinder (3); a muffler body (4) is placed inside the semi-arc support plate (62); a servo motor (63) is mounted on one side of the top of the bottom plate (1); and a transmission assembly (64) is connected between an output shaft of the servo motor (63) and the other side of the hollow tube (61); It also includes an alignment mechanism, which is arranged on the support legs (2), the hollow tube (61), the semi-arc support plate (62) and the rotating frame (73). The alignment mechanism is used to align the muffler body (4). The alignment mechanism includes a sliding frame (81), a sliding shaft (82) and an alignment frame (83). A sliding frame (81) is slidably provided between the two support legs (2). A sliding shaft (82) is slidably provided on the hollow tube (61). One side of the sliding frame (81) is rotatably connected to the rotating frame (73). The other side of the sliding frame (81) is rotatably connected to one end of the sliding shaft (82). An alignment frame (83) is slidably provided on the semi-arc support plate (62). One side of the alignment frame (83) is slidably connected to the hollow tube (61). One side of the alignment frame (83) located in the hollow tube (61) is connected to the other end of the sliding shaft (82). The invention also includes a pressing mechanism, which is arranged on the hollow tube (61) and the sliding shaft (82). The pressing mechanism is used to press down the muffler body (4). The pressing mechanism includes a horizontal shaft (91), a swing frame (92), an arc-shaped rubber plate (921), a column gear (93), a torsion spring (94), a rack frame (95) and a horizontal bolt (96). A horizontal shaft (91) is rotatably arranged on the hollow tube (61). A swing frame (92) is fixedly installed in the middle of the horizontal shaft (91). The swing frame (92) passes through Through the hollow tube (61), an arc-shaped rubber plate (921) is installed at the other end of the swing frame (92), a column gear (93) is installed on both sides of the horizontal shaft (91), a torsion spring (94) is connected between the two column gears (93) and the two sides of the hollow tube (61), a horizontal bolt (96) is threadedly connected to one side of the sliding shaft (82), a rack frame (95) is slidably provided on the other side of the sliding shaft (82), and one end of the horizontal bolt (96) is rotatably connected to the rack frame (95); The invention also includes an adjustment mechanism, which is arranged on the connecting frame (74) and the upper pressure frame (76). The adjustment mechanism is used to adjust the position of the manifold (5). The adjustment mechanism includes a vertical shaft (141), a clamping plate (142), a torsion spring (143) and a contact roller (144). A vertical shaft (141) is respectively installed at the bottom of the two connecting frames (74). A clamping plate (142) is rotatably arranged on each of the two vertical shafts (141). The two clamping plates (142) are symmetrically arranged. A torsion spring (143) is respectively connected between the two clamping plates (142) and the bottom of the two connecting frames (74). The two torsion springs (143) are respectively wound around the two vertical shafts (141). Two contact rollers (144) are rotatably arranged on the upper pressure frame (76). The two contact rollers (144) are respectively in contact with one side of the two clamping plates (142).

2. The automobile parts production welding device according to claim 1, characterized in that: The transmission assembly (64) is composed of two pulleys and a flat belt, wherein one pulley is connected to the output shaft of the servo motor (63), and the other pulley is connected to the other side of the hollow tube (61), and a flat belt is wound between the two pulleys.

3. The automobile parts production welding device according to claim 2, characterized in that: The rack frame (95) is located on one side of the two column gears (93).

4. The automobile parts production welding device according to claim 3, characterized in that: It also includes a movable side plate (10) and side adjustment bolts (11); a movable side plate (10) is slidably provided on one side of the semi-arc support plate (62); two side adjustment bolts (11) are threadedly connected to one side of the semi-arc support plate (62); one end of the two side adjustment bolts (11) is rotatably connected to the movable side plate (10).

5. The automobile parts production welding device according to claim 4, characterized in that: It also includes a bottom adjustment plate (12) and a bottom adjustment bolt (13), wherein two bottom adjustment plates (12) are slidably provided at the bottom of the semi-arc support plate (62), and four bottom adjustment bolts (13) are threadedly connected to the bottom of the semi-arc support plate (62), wherein two bottom adjustment bolts (13) are rotatably connected to one of the bottom adjustment plates (12), and the other two bottom adjustment bolts (13) are rotatably connected to the other bottom adjustment plate (12).

Images