Exhaust pipe bending machine

Abstract

The invention discloses an exhaust pipe bending machine. The exhaust pipe bending machine comprises a rotary disc, and the rotary disc is provided with a pipe bending groove and connected with a rotating handle through a hinge; one end of the rotating handle is provided with a connecting rod, and the other end of the rotating handle is connected with an air cylinder; a plurality of the wheels are mounted inside a wheel seat, and every wheel is provided with a guide groove matched with the pipe bending groove; the pipe bending groove is composed of a movable unit and a fixed unit, wherein the fixed unit is rotatably mounted on the rotary disc through a rotating shaft and provided with a slot, the movable unit is provided with a protrusion, and the protrusion and the slot are matched with each other. When the rotating handle is pressed downwards, the connecting rod can slide at a certain distance in a trapezoid groove to guarantee stress uniformity on the wheel seat; the plurality of wheels enlarge the contact area between the guide grooves and the portion to be bent of an exhaust pipe and guarantee the stress uniformity of the portion to the bent to reduce direct fracture of the exhaust pipe or cracks in the portion to be bent of the exhaust pipe, and further the rejection rate of the exhaust pipe can be reduced.

Description

technical field [0001] The invention relates to a pipe bender, in particular to an exhaust pipe bending machine. Background technique [0002] The exhaust angle of motor vehicle exhaust pipes has always been a difficult problem for professional manufacturers. According to the survey, the angle direction of the exhaust pipes of cars and light family cars is generally backward and parallel to the ground, while the angle of the exhaust pipes of high-power transport vehicles and agricultural vehicles is bent to the ground. From the perspective of environmental protection, according to the current angular direction design and mechanical design principles of motor vehicle exhaust pipes, no new angular discharge design method has been stipulated. [0003] In the process of processing the exhaust pipes of high-power transport vehicles, the pipe benders on the market are usually used to bend the exhaust pipes. However, most of the pipe benders on the market have a bending angle of 9...

AI Technical Summary

Problems solved by technology

[0003] In the process of processing the exhaust pipes of high-power transport vehicles, the pipe benders on the market are usually used to bend the exhaust pipes. However, most of the pipe benders on the market have a bending angle of 90°. When using this type of pipe bender, it cannot be formed in one time

In order to meet the processing requirements of the exhaust pipe, the staff also need to proofread the bent pipe fittings. During the proofreading process, due to the low precision of manual operation, it is easy to cause the pipe fittings to break directly, or there will be obvious cracks at the bend of the pipe fittings. Depression or cracks will lead to the scrapping of the exhaust pipe, and in the process of operation, it takes a long time, the waste of materials is serious, and the labor intensity of workers is greatly increased

Images