Tool clamp for annular welding of barrel workpiece

Abstract

The invention discloses a tool clamp for annular welding of a barrel workpiece, and belongs to the technical field of clamps. An electric sliding rail is fixedly connected to the upper end of the base, a moving seat is slidably connected to the upper end of the electric sliding rail, a ball screw is rotatably connected to the inner side of the moving seat, a rotating disc is rotatably connected to the upper end of one side of the base, a moving block is in threaded connection with the outer wall of the ball screw, and connecting rods are hinged to the two sides of the moving block. The other end of the connecting rod is hinged to a sliding block. Through the linkage design of the ball screw, the connecting rod and the sliding block, synchronous radial movement of the fixing clamping plate is achieved, it is ensured that a barrel workpiece is evenly clamped, deflection is avoided, through cooperation of the positioning hole and the positioning rod, the rotating disc can be fixed in the initial stage, dislocation caused by mistaken rotation during butt joint is prevented, and the welding precision is improved; the ball screw can drive the rotary table to rotate, continuous welding of annular welding seams is facilitated, and efficiency is improved.

Claims

1. A fixture for annular welding of cylindrical workpieces, characterized in that: It includes a base; At the upper end of the base, an electric slide rail is fixedly connected. At the upper end of the electric slide rail, a moving seat is slidably connected. Inside the moving seat, a ball screw is rotatably connected. At the upper side of one end of the base, a turntable is rotatably connected. On the outer wall of the ball screw, a moving block is threadedly connected. On both sides of the moving block, connecting rods are hinged. At the other end of the connecting rod, a slider is hinged. On the outer wall of the slider, a fixed clamping plate is fixedly connected. On the outer wall of the moving seat, a chute A is provided. At the upper end of the moving seat and at the bottom of the turntable, positioning holes are provided. The chute A is communicated with the positioning hole inside the moving seat. Inside the positioning hole, a positioning rod is slidably connected. Inside the chute A, a movable block is slidably connected. The movable block is fixedly connected with the positioning rod. At the upper end of the base, a fixing plate is fixedly connected. At both ends of the fixing plate, elastic telescopic rods are fixedly connected. At the other end of the elastic telescopic rod, a blocking block is fixedly connected.

2. A fixture for annular welding of a cylindrical workpiece according to claim 1, characterized in that: At the inner bottom end of the positioning hole, a spring is fixedly connected. The upper end of the spring is fixedly connected with the bottom of the positioning rod.

3. A fixture for annular welding of a cylindrical workpiece according to claim 1, characterized in that: On the outer wall of the turntable, a chute B is provided. The slider is slidably connected inside the chute B.

4. A fixture for annular welding of a cylindrical workpiece according to claim 1, characterized in that: On the adjacent surfaces of the blocking block and the movable block, inclined surfaces are provided.

5. The fixture for annular welding of a cylindrical workpiece according to claim 1, characterized in that: On the upper end of the base, a protection component and a temperature reduction component are assembled.

6. A fixture for annular welding of a cylindrical workpiece according to claim 5, characterized in that: The protection component includes a U-shaped seat A. Inside the U-shaped seat A, a movable cylinder is rotatably connected. On the outer wall of the moving seat, a connecting rod is fixedly connected. At the other end of the connecting rod, a moving rod is fixedly connected. On the outer wall of the moving rod, a track groove is provided. Inside the movable cylinder, a sliding shaft is fixedly connected. On the outer wall of the movable cylinder, a support rod is fixedly connected. At the top of the support rod, a U-shaped seat B is fixedly connected. Inside the U-shaped seat B, a mounting shaft is rotatably connected. On the outer wall of the mounting shaft, a connecting block is fixedly sleeved. At the upper end of the connecting block, a protection plate is fixedly connected.

7. A fixture for annular welding of a cylindrical workpiece according to claim 6, characterized in that: The end of the moving rod away from the connecting rod movably penetrates through the movable cylinder and the U-shaped seat A. The sliding shaft is slidably connected inside the track groove.

8. A fixture for annular welding of a cylindrical workpiece according to claim 7, characterized in that: On the outer wall of the mounting shaft, a torsion spring is movably sleeved. The two ends of the torsion spring are respectively fixedly connected with the U-shaped seat B and the connecting block. At the upper end of the U-shaped seat A, a push rod is fixedly connected.

9. A fixture for annular welding of a cylindrical workpiece according to claim 8, characterized in that: The temperature reduction component includes a cold air blower. The air outlet of the cold air blower is equipped with a conveying pipe. At the upper end of the base, a telescopic column is fixedly connected. At the top of the telescopic column, a blowing plate is fixedly connected. Inside the blowing plate, air outlet nozzles are provided. The other end of the conveying pipe is communicated with the air inlet hole of the blowing plate.

10. A fixture for annular welding of a cylindrical workpiece according to claim 9, characterized in that: On the outside of the telescopic column, a linkage block is fixedly connected. On the side surface of the linkage block, a linkage rod is hinged. At the other end of the linkage rod, it is hinged with the support rod.

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