Welding device for automobile part production

Abstract

The invention relates to the field of part welding correction, in particular to a welding device for automobile part production. The technical problems that the positions of a manifold and a silencer need to be adjusted multiple times before welding, the manifold and the silencer are prone to relative displacement in the process of fixing the manifold and the silencer, and the position, facing the ground, of the attached position of the manifold and the silencer is not convenient to weld are solved. An automobile part production welding device comprises a bottom plate, supporting legs, a barrel and the like. Two supporting legs are installed on the bottom plate, and a cylinder is installed between the two supporting legs. The silencer body is driven to move after the aligning frame moves to make contact with one side of the silencer body, the other side of the silencer body is tightly attached to the semi-arc supporting plate, the arc-shaped rubber plate makes contact with the upper portion of the silencer body after swinging, and therefore the silencer body can be pressed, corrected and fixed; therefore, the silencer body can be positioned and fixed in multiple directions.

Description

Technical Field

[0001] The invention relates to the field of parts welding correction, in particular to a welding device for automobile parts 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 structure of the manifold connected to the muffler and purifier is also relatively complex. In order to accurately align the manifold and the muffler, the position of the manifold and the muffler must be adjusted several times before welding. After the manifold and the muffler are aligned, they need to be fixed with a clamp. During the fixing process, the manifold and the muffler are prone to relative displacement. In addition, the positions of the manifold and the muffler are generally fixed, which is not very convenient for welding at the position where the manifold and the muffler are facing the ground. Summary of the invention

[0003] In order to overcome the shortcomings of having to adjust the position of the manifold and the muffler several times before welding, the manifold and the muffler are prone to relative displacement during the process of fixing the manifold and the muffler, and it is not convenient to weld the manifold and the muffler at the position where they are fitted and facing the ground, the purpose of the present invention is to provide a welding device for the production of automotive parts, which can accurately correct and fix the manifold and the muffler, avoid the relative displacement of the manifold and the muffler during the fixing process, and can more conveniently weld the manifold and the muffler, thereby improving the quality and efficiency of the welding of the manifold and the muffler.

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

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

[0006] Preferably, the transmission assembly consists of two pulleys and a flat belt, wherein one pulley is connected to the output shaft of the servo motor, the other pulley is connected to the other side of the hollow tube, and a flat belt is wound between the two 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 pressure frame, a return spring, a double movable plug rod and a guide seat, an electric push rod is respectively installed on the two opposite outer sides of the cylinder, a guide ring is installed between the telescopic rods of the two electric push rods, a rotating frame is slidably provided on the guide ring, two connecting frames are installed on the rotating frame, a lower bracket is fixedly installed between one side of the two connecting frames, an upper pressure frame is slidably provided between the two connecting frames, a return spring is respectively connected to the two sides of the upper pressure frame and the two connecting frames, a manifold is clamped between the lower bracket and the upper pressure frame, a double movable plug rod is fixedly installed on the bottom of the lower bracket, a guide seat is installed on one side of the bottom of the semi-arc support plate, and the double movable plug rod slides through the guide seat.

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

[0009] Preferably, a pressing mechanism is also included, which is arranged on the hollow tube and the sliding shaft. The pressing mechanism is used to press down the muffler body. The pressing mechanism includes a horizontal axis, a swing frame, an arc-shaped rubber plate, a column gear, a torsion spring, a rack frame and a horizontal bolt. A horizontal axis is rotatably provided on the hollow tube, a swing frame is fixedly installed in the middle of the horizontal axis, the swing frame passes through the hollow tube, and an arc-shaped rubber plate is installed on the other end of the swing frame. A column gear is respectively installed on both sides of the horizontal axis, and 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, and a rack frame is slidably provided on the other side of the sliding shaft, and one end of the horizontal bolt is rotatably connected to the rack frame.

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

[0011] Preferably, it also includes a movable side plate and side adjustment bolts. A movable side plate is slidably provided on one side of the semi-arc support plate. Two side adjustment bolts are threadedly connected to one side of the semi-arc support plate. One end of the two side adjustment bolts is rotatably connected to the movable side plate.

[0012] Preferably, it also includes a bottom adjustment plate and a bottom adjustment bolt. Two bottom adjustment plates are slidingly provided at the bottom of the semi-arc support plate. Four bottom adjustment bolts are threadedly connected to the bottom of the semi-arc support plate, two of which 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 also included, which is arranged on the connecting frame and the upper pressure frame. The adjustment mechanism is used to adjust the position of the manifold. The adjustment mechanism includes a vertical axis, a clamping plate, a torsion spring and a contact roller. A vertical axis is respectively installed at the bottom of the two connecting frames, and a clamping plate is rotatably provided on the two vertical axes. The two clamping plates are symmetrically arranged, and a torsion spring is respectively connected between the two clamping plates and the bottom of the two connecting frames. The two torsion springs are respectively wound around the two vertical axes. Two contact rollers are rotatably provided on the upper pressure frame, and 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. The alignment frame moves and contacts one side of the muffler body, and then drives the muffler body to move, so that the other side of the muffler body is tightly attached to the semi-arc support plate, and the arc-shaped rubber plate swings and contacts the upper part of the muffler body, so that the muffler body can be pressed, corrected and fixed, so that the muffler body can be positioned and fixed in multiple directions, and then the servo motor drives the muffler body and manifold that have been positioned, fitted and fixed to rotate synchronously and slowly, and the operator can weld the muffler body and the manifold. The fixed muffler body and manifold are not prone to relative displacement during welding, and can also be aligned more accurately. In this way, the quality and efficiency of the welding of the muffler body and the manifold can be improved, and the muffler body and the manifold can be welded more conveniently.

[0015] 2. By rotating the side adjusting bolt and the bottom adjusting bolt, the position of the movable side plate and the bottom adjusting plate can be adjusted, and then the horizontal bolt can be rotated forward and backward. When the horizontal bolt rotates forward, it drives the rack frame to move away from the column gear, and when the horizontal bolt rotates reversely, it drives the rack frame to move toward the column gear. In this way, the timing of the meshing of the rack frame and the column gear can be adjusted, and then the swing amplitude of the arc rubber plate can be adjusted, so that it can adapt to muffler bodies of different sizes, thereby making the application range of the device wider. At the same time, the fastening position of the muffler body can also be fine-tuned, so that the alignment of the muffler body and the manifold is more precise, further improving the welding quality of the muffler body and the manifold.

[0016] 3. The upper pressure frame drives the two contact rollers to move. After the two contact rollers contact the two clamps respectively, the two clamps move away from the side of the vertical axis toward each other, and the torsion spring twists accordingly. The two clamps can correct and position the manifold, thereby adjusting the position of the manifold so that the manifold can be more accurately aligned with the muffler body, thereby further improving the quality of the welding of the muffler body and the manifold. BRIEF DESCRIPTION OF THE DRAWINGS

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

[0018] Figure 2It is a schematic diagram of the three-dimensional structure of the driving mechanism of the present invention.

[0019] Figure 3 It is a schematic diagram of the three-dimensional structure of the support legs, cylinder, muffler body and manifold of the present invention.

[0020] Figure 4 It is a schematic diagram of the three-dimensional structure when viewed from above of the present invention.

[0021] Figure 5 It is a schematic diagram of the disassembled three-dimensional structure of some parts of the clamping mechanism of the present invention.

[0022] Figure 6 It is a three-dimensional structural schematic diagram of the driving mechanism and the clamping mechanism of the present invention.

[0023] Figure 7 It is a three-dimensional structural schematic diagram of the pressing mechanism of the present invention.

[0024] Figure 8 It is a schematic diagram of the three-dimensional structure of the manifold, the lower bracket and the upper press frame of the present invention.

[0025] Fig. 9 It is a three-dimensional structural schematic diagram of the pressing mechanism of the present invention.

[0026] Fig.10 It is a three-dimensional structural schematic diagram of the semi-arc support plate, movable side plate, side adjustment bolts, bottom adjustment plate and bottom adjustment bolts of the present invention.

[0027] Fig.11 It is a schematic diagram of the three-dimensional structure of the alignment mechanism and the pressing mechanism of the present invention.

[0028] Fig.12 It is a three-dimensional structural schematic diagram of the pressing mechanism of the present invention.

[0029] Fig.13 It is a three-dimensional structural schematic diagram of the hollow tube and the pressing mechanism of the present invention.

[0030] Fig.14 It is a schematic diagram of the disassembled three-dimensional structure of some parts of the pressing mechanism and the adjusting mechanism of the present invention.

[0031] Fig.15 It is a schematic diagram of the three-dimensional structure of the adjustment mechanism of the present invention.

[0032] Explanation of the accompanying drawings: 1_bottom plate, 2_leg, 3_cylinder, 4_muffler body, 5_manifold, 61_hollow pipe, 62_semi-arc 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 pressure frame, 77_reset spring, 78_double movable plug rod, 79_guide seat, 81_sliding frame, 82_sliding shaft, 83_alignment frame, 91_horizontal axis, 92_swing frame, 921_arc rubber plate, 93_column 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 axis, 142_clamp, 143_torsion spring, 144_contact roller. DETAILED DESCRIPTION

[0033] The present invention is further described below in conjunction with the accompanying drawings and specific embodiments.

[0034] Embodiment 1: A welding device for automobile parts production, such as Figure 1-Figure 9 As shown, it includes a base plate 1, legs 2, a cylinder 3, a driving mechanism and a clamping mechanism. Two legs 2 are installed on the base plate 1, and the cylinder 3 is installed between the two legs 2. A driving mechanism is provided on the base plate 1 and the cylinder 3, and the driving mechanism is used to drive the muffler body 4 and the manifold 5 to rotate. A clamping mechanism is provided on the cylinder 3, and the clamping mechanism is used to clamp the manifold 5.

[0035] The driving mechanism includes 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 through a bearing. A semi-arc support plate 62 is installed on one side of the hollow tube 61. The semi-arc support plate 62 is located in the cylinder 3. The muffler body 4 is placed in the semi-arc support plate 62. A servo motor 63 is installed on one side of the top of the base 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 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.

[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 pressure 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 the two opposite outer sides of the cylinder 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 provided on the guide ring 72, and two connecting frames 74 are installed on the rotating frame 73. A lower bracket 75 is fixedly installed between one side of the two connecting frames 74 by screws, an upper pressure frame 76 is slidably provided between the two connecting frames 74, and a return spring 77 is respectively connected between the two sides of the upper pressure frame 76 and the two connecting frames 74. A manifold 5 is clamped between the lower bracket 75 and the upper pressure frame 76, and a double movable 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-arc support plate 62, and the double movable plug rod 78 slides through the guide seat 79.

[0038] 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, and the sliding frame 81 will slide horizontally along 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, and 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, and the side of the alignment frame 83 located in the hollow tube 61 is connected to the other end of the sliding shaft 82.

[0039] The pressing mechanism 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 provided on the hollow tube 61 through a bearing, a swing frame 92 is fixedly installed in the middle of the horizontal shaft 91, the swing frame 92 passes through the hollow tube 61, and an arc-shaped rubber plate 921 is installed at the other end of the swing frame 92. A column gear 93 is respectively installed on both sides of the horizontal shaft 91, and a torsion spring 94 is respectively 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, and 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.

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

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

[0042] Embodiment 2: Based on embodiment 1, Figure 9-Figure 14 As shown, it also includes a movable side plate 10 and a side adjusting bolt 11. A movable side plate 10 is slidably provided on one side of the semi-arc support plate 62. Two side adjusting bolts 11 are threadedly connected to one side of the semi-arc support plate 62. One end of the two side adjusting bolts 11 is rotatably connected to the movable side plate 10.

[0043] It also includes a bottom adjustment plate 12 and a bottom adjustment bolt 13. Two bottom adjustment plates 12 are slidingly provided at the bottom of the semi-arc support plate 62. Four bottom adjustment bolts 13 are threadedly connected to the bottom of the semi-arc support plate 62, two of which 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 toward 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 toward the bottom plate 1. In this way, the size of the muffler body 4 that the semi-arc support plate 62 can accommodate can be adjusted. Then, the operator rotates 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 toward the column gear 93. In this way, the size of the muffler body 4 that the semi-arc support plate 62 can accommodate can be adjusted. The timing of the meshing of the rack frame 95 with the column gear 93 can thereby adjust the swing amplitude of the arc rubber plate 921; by rotating the side adjusting bolt 11 and the bottom adjusting bolt 13, the position of the movable side plate 10 and the bottom adjusting plate 12 can be adjusted, and then the horizontal bolt 96 is rotated forward and reversely. When the horizontal bolt 96 rotates forward, it drives the rack frame 95 to move away from the column gear 93, and when the horizontal bolt 96 rotates reversely, it drives the rack frame 95 to move toward the column gear 93. In this way, the timing of the meshing of the rack frame 95 with the column gear 93 can be adjusted, and the swing amplitude of the arc rubber plate 921 can be adjusted, so that it can adapt to muffler bodies 4 of different sizes, thereby making the application range of the device wider, and at the same time, the fastening position of the muffler body 4 can be fine-tuned, so that the alignment of the muffler body 4 and the manifold 5 is more precise, further improving the welding quality of the muffler body 4 and the manifold 5.

[0045] Embodiment 3: Based on embodiment 2, Figure 13-Figure 15 As shown, an adjustment mechanism is also included, 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 fixedly installed at the bottom of the two connecting frames 74 respectively, and a clamping plate 142 is rotatably provided on the two vertical shafts 141 through a bearing. The two clamping plates 142 are symmetrically arranged, and 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, and two contact rollers 144 are rotatably provided on the upper pressure 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 clamps 142. When the upper pressure frame 76 moves in the direction close to the muffler body 4, it drives the two contact rollers 144 to move. After the two contact rollers 144 contact the two clamps 142 respectively, the two clamps 142 move in the direction of approaching each other away from the vertical axis 141, and the torsion spring 143 twists accordingly. The two clamps 142 can 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, thereby further improving the quality of welding between the muffler body 4 and the manifold 5; when the upper pressure frame 76 moves in the direction away from the muffler body 4, it drives the two contact rollers 144 to move. After the two contact rollers 144 are separated from the two clamps 142, under the action of the torsion spring 143, the two clamps 142 move in the direction of moving away from the vertical axis 141, and the two clamps 142 can be separated from the manifold 5.

[0047] The embodiments of the present invention are described in detail above with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art 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 semi-arc support plate (62), an upper pressure 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 pressure frame (76) and the two connecting frames (74), a manifold (5) is clamped between the lower bracket (75) and the upper pressure 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).

2. The automobile parts production welding device according to claim 1, characterized in that: 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 in the cylinder (3); a muffler body (4) is placed in 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).

3. The automobile parts production welding device according to claim 2, 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.

4. The automobile parts production welding device according to claim 3, characterized in that: The invention also comprises an alignment mechanism, which is arranged on the supporting legs (2), the hollow tube (61), the semi-arc supporting plate (62) and the rotating frame (73). The alignment mechanism is used to align the muffler body (4). The alignment mechanism comprises a sliding frame (81), a sliding shaft (82) and an alignment frame (83). A sliding frame (81) is slidably provided between the two supporting 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 supporting 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 in the hollow tube (61) is connected to the other end of the sliding shaft (82).

5. The automobile parts production welding device according to claim 4, characterized in that: 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 A curved rubber plate (921) is installed at the other end of the swing frame (92) through the hollow tube (61), 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).

6. The automobile parts production welding device according to claim 5, characterized in that: The rack frame (95) is located on one side of the two column gears (93).

7. The automobile parts production welding device according to claim 6, 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).

8. The automobile parts production welding device according to claim 7, 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).

9. The automobile parts production welding device according to claim 8, characterized in that: 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).

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