A rotating device for coaxial welding

Abstract

The utility model discloses a rotary device for coaxial welding relates to automobile accessory processing equipment technical field, including support plate, and the top one side of support plate is provided with fixed plate, and one side of fixed plate is provided with guide frame, and the guide frame is installed with movable plate, and the movable plate one side and guide frame between installation have pushed subassembly, and the movable plate and fixed plate are rotated and installed with first rotation axis and second rotation axis through bearing respectively, and one end of first rotation axis and second rotation axis opposite all are connected with rotary block, and two rotary blocks all are provided with clamping groove, and two rotary blocks all are provided with clamping subassembly, and the one side of fixed plate is installed with servo motor and bearing seat. In the utility model, through servo motor drive worm and worm gear structure, drive steel pipe coaxial 360 DEG rotation, cooperate automatic welding arm can complete annular full welding, satisfy the high -strength welding demand of steering wheel below connecting rod etc. accessory, solve the problem that traditional welding torch is difficult to realize longitudinal annular welding.

Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts processing equipment, and in particular to a rotating device for coaxial welding. Background Technology

[0002] During the welding process of the connecting rod below the steering wheel, the product requires high strength at the welding position, and the welding component is a steel pipe. The end of the steel pipe needs to be fully welded to meet the product's usage requirements. However, current welding torches are not suitable for 360° longitudinal circumferential welding, making it impossible to quickly meet the requirement of full circumferential welding at the welding position. Therefore, a coaxial welding rotary device is provided. Utility Model Content

[0003] To address the shortcomings of existing technologies, this utility model provides a rotating device for coaxial welding. By driving a worm gear structure with a servo motor, the steel pipe is rotated 360° coaxially. In conjunction with an automatic welding arm, it can complete full-circumferential welding, meeting the high-strength welding requirements of accessories such as the connecting rod under the steering wheel. This solves the problem that traditional welding guns are difficult to achieve longitudinal circumferential welding and overcomes the shortcomings of existing technologies.

[0004] To achieve the above objectives, the present invention adopts the following technical solution: A rotating device for coaxial welding includes a support plate, a fixed plate on one side of the top of the support plate, a guide frame on one side of the fixed plate, a movable plate mounted on the guide frame, a pushing assembly between one side of the movable plate and the guide frame, a first rotating shaft and a second rotating shaft rotatably mounted on the movable plate and the fixed plate respectively via bearings, a rotating block connected to the opposite end of each of the first and second rotating shafts, a clamping groove provided on each of the two rotating blocks, and a clamping assembly provided on each of the two rotating blocks, a servo motor and a bearing seat mounted on one side of the fixed plate, a worm gear rotatably mounted on the bearing seat via bearings, one end of the worm gear connected to the output end of the servo motor, a worm wheel connected to the other end of the first rotating shaft, the worm wheel meshing with the worm gear, and a PLC controller mounted on the support plate.

[0005] As a further embodiment of this utility model: the guide frame includes two crossbars symmetrically fixed on one side of the fixed plate, and a connecting rod is connected to one end of the two crossbars away from the fixed plate. An electric push rod is installed between the middle of the connecting rod and one side of the movable plate, and the two ends of the movable plate are respectively slidably sleeved on the two crossbars.

[0006] As a further improvement of this utility model: a pressure sensor is installed at the connection between the electric push rod and the movable plate, and both the pressure sensor and the electric push rod are electrically connected to the PLC controller.

[0007] As a further embodiment of this utility model: the clamping assembly includes a fixing block fixed to the top of the rotating block, a clamping screw screwed to the middle of the fixing block, and the lower end of the clamping screw extending into the clamping groove.

[0008] As a further improvement of this utility model, the lower end face of the support plate is symmetrically fixed with two support legs.

[0009] As a further improvement of this utility model: a support block is provided at one end of the support plate, and an automatic welding arm mounting seat is installed at the top of the support block.

[0010] As a further improvement of this utility model, a ventilation and chip removal hole is provided in the middle of the support plate.

[0011] The beneficial effects of this utility model are as follows: 1. The worm gear structure driven by the servo motor drives the steel pipe to rotate 360° coaxially. With the help of the automatic welding arm, it can complete the full ring welding, which meets the high-strength welding requirements of accessories such as the connecting rod under the steering wheel and solves the problem that traditional welding guns are difficult to achieve longitudinal ring welding.

[0012] 2. The steel pipe is fixed by clamping screws, the docking pressure is adjusted by electric push rod, and the pressure sensor and PLC controller accurately control the pressure to avoid damage or loosening of the steel pipe. At the same time, the ventilation and chip removal holes can dissipate heat and remove debris to ensure stable operation of the equipment. Attached Figure Description

[0013] Figure 1 This is a first-view three-dimensional structural diagram of a coaxial welding rotating device proposed in this utility model.

[0014] Figure 2 This is a second-view three-dimensional structural diagram of a coaxial welding rotating device proposed in this utility model.

[0015] Figure 3 This is a third-view perspective three-dimensional structural diagram of a coaxial welding rotating device proposed in this utility model.

[0016] Figure 4 This utility model proposes a rotating device for coaxial welding. Figure 2 Enlarged structural diagram at point A in the middle.

[0017] In the diagram: 1. Support plate; 2. Electric push rod; 3. Support block; 4. Automatic welding arm mounting base; 5. Clamping slot; 6. Rotating block; 7. First rotating shaft; 8. PLC controller; 9. Fixing plate; 10. Crossbar; 11. Ventilation and chip removal hole; 12. Movable plate; 13. Pressure sensor; 14. Support leg; 15. Connecting rod; 16. Second rotating shaft; 17. Worm gear; 18. Worm; 19. Servo motor; 20. Fixing block; 21. Clamping screw. Detailed Implementation

[0018] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.

[0019] Example 1, referring to Figure 1-4 A coaxial welding rotary device includes a support plate 1, a fixed plate 9 on one side of the top of the support plate 1, a guide frame on one side of the fixed plate 9, a movable plate 12 mounted on the guide frame, a pushing assembly between one side of the movable plate 12 and the guide frame, a first rotating shaft 7 and a second rotating shaft 16 rotatably mounted on the movable plate 12 and the fixed plate 9 respectively via bearings, a rotating block 6 connected to the opposite end of the first rotating shaft 7 and the second rotating shaft 16, a clamping groove 5 provided on each of the two rotating blocks 6, and a clamping assembly provided on each of the two rotating blocks 6, a servo motor 19 and a bearing seat mounted on one side of the fixed plate 9, a worm gear 18 rotatably mounted on the bearing seat via bearings, one end of the worm gear 18 connected to the output end of the servo motor 19, a worm wheel 17 connected to the other end of the first rotating shaft 7, the worm wheel 17 meshing with the worm gear 18, and a PLC controller 8 mounted on the support plate 1.

[0020] The guide frame includes two crossbars 10 symmetrically fixed on one side of the fixed plate 9. The ends of the two crossbars 10 away from the fixed plate 9 are connected to connecting rods 15. An electric push rod 2 is installed between the middle of the connecting rod 15 and one side of the movable plate 12. The two ends of the movable plate 12 are respectively slidably sleeved on the two crossbars 10.

[0021] A pressure sensor 13 is installed at the connection between the electric push rod 2 and the movable plate 12. Both the pressure sensor 13 and the electric push rod 2 are electrically connected to the PLC controller 8.

[0022] The clamping assembly includes a fixing block 20 fixed to the top of the rotating block 6, a clamping screw 21 screwed to the middle of the fixing block 20, and the lower end of the clamping screw 21 extending into the clamping groove 5.

[0023] Two support legs 14 are symmetrically fixed to the lower end of the support plate 1.

[0024] A support block 3 is provided at one end of the support plate 1, and an automatic welding arm mounting seat 4 is installed at the top of the support block 3. The automatic welding arm can be installed on the automatic welding arm mounting seat 4.

[0025] The two steel pipes to be welded are inserted into the clamping slots 5 of the two rotating blocks 6 respectively. The two clamping screws 21 are rotated so that the lower ends of the two clamping screws 21 abut against the surfaces of the two steel pipes, thereby fixing the two steel pipes. The electric push rod 2 is started by the PLC controller 8 (model Siemens S7-1214C can be selected) to push the movable plate 12 to move along the cross bar 10 towards the fixed plate 9, so that the welding surfaces of the two steel pipes abut against each other. The pressure sensor 13 transmits the pressure data to the PLC controller 8 in real time. When the pressure reaches the preset value, the PLC controller 8 controls the electric push rod 2 to stop pushing to avoid damage to the steel pipe due to excessive pressure or loosening of the steel pipe due to insufficient pressure. Welding parameters, such as welding current, voltage, and welding speed, are set through the control system of the automatic welding arm (FANUC ARCIMate 100iD model is optional). At the same time, the rotation speed of the servo motor 19 is set through the PLC controller 8 to ensure that it matches the welding speed. The automatic welding arm and servo motor 19 are started. After one welding surface of the two steel pipes is completed, the servo motor 19 drives the worm gear 18 to rotate. The worm gear 18 drives the meshing worm wheel 17 and the first rotating shaft 7 to rotate, which in turn drives the rotating block 6 on one side and the two steel pipes to rotate. The rotating block 6 on the other side rotates synchronously with the steel pipe along the second rotating shaft 16, realizing the coaxial 360° rotation of the two steel pipes. The welding gun of the automatic welding arm performs full circumferential welding on the weld seam to meet the welding strength requirements.

[0026] Example 2 is an optimization based on Example 1, specifically: The support plate 1 has a ventilation chip removal hole 11 in the middle, which improves the ventilation effect near the support plate 1, helps the welding area to dissipate heat, and the welding chips can fall from the ventilation chip removal hole 11 to avoid accumulation on the support plate 1.

[0027] The above are merely preferred embodiments of this utility model, but the scope of protection of this utility model is not limited thereto. Any equivalent substitutions or modifications made by those skilled in the art within the scope of the technology disclosed in this utility model, based on the technical solution and inventive concept of this utility model, should be included within the scope of protection of this utility model.

Claims

1. A rotating device for coaxial welding, comprising a support plate (1), characterized in that, A fixed plate (9) is provided on one side of the top of the support plate (1), and a guide frame is provided on one side of the fixed plate (9). A movable plate (12) is installed on the guide frame. A pushing component is installed between one side of the movable plate (12) and the guide frame. A first rotating shaft (7) and a second rotating shaft (16) are respectively rotatably mounted on the movable plate (12) and the fixed plate (9) through bearings. A rotating block (6) is connected to the opposite end of the first rotating shaft (7) and the second rotating shaft (16). Each rotating block (6) is provided with a clamping groove (5), and each of the two rotating blocks (6) is provided with a clamping assembly. A servo motor (19) and a bearing seat are installed on one side of the fixed plate (9). A worm gear (18) is installed on the bearing seat through the bearing. One end of the worm gear (18) is connected to the output end of the servo motor (19). The other end of the first rotating shaft (7) is connected to a worm wheel (17). The worm wheel (17) meshes with the worm gear (18). A PLC controller (8) is installed on the support plate (1).

2. The rotating device for coaxial welding according to claim 1, characterized in that, The guide frame includes two crossbars (10) symmetrically fixed on one side of the fixed plate (9). The ends of the two crossbars (10) away from the fixed plate (9) are connected to a connecting rod (15). An electric push rod (2) is installed between the middle of the connecting rod (15) and one side of the movable plate (12). The two ends of the movable plate (12) are respectively slidably sleeved on the two crossbars (10).

3. The rotating device for coaxial welding according to claim 1, characterized in that, A pressure sensor (13) is installed at the connection between the electric push rod (2) and the movable plate (12). Both the pressure sensor (13) and the electric push rod (2) are electrically connected to the PLC controller (8).

4. The rotating device for coaxial welding according to claim 1, characterized in that, The clamping assembly includes a fixing block (20) fixed to the top of the rotating block (6), and a clamping screw (21) is screwed to the middle of the fixing block (20), with the lower end of the clamping screw (21) extending into the clamping groove (5).

5. A rotating device for coaxial welding according to claim 1, characterized in that, The lower end face of the support plate (1) is symmetrically fixed with two support legs (14).

6. The rotating device for coaxial welding according to claim 1, characterized in that, One end of the support plate (1) is provided with a support block (3), and the top of the support block (3) is provided with an automatic welding arm mounting seat (4).

7. A rotating device for coaxial welding according to claim 1, characterized in that, The support plate (1) is provided with a ventilation chip removal hole (11) in the middle.

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