Measuring the efficiency of double head hydraulic pipe bender with mechanical knowledge

2018/4/3 14:27:08

a. The double head hydraulic pipe bender can move laterally along the guide rail. Of course, this is necessary for the pipe bender to adjust the pipe groove of the bending die to align with the center line of the machine tool after replacing the bending die. This is simpler than adjusting the center line of the machine tool by adjusting the guide rail and tailstock on the machine body.
b. The trolley that ends the straight-line feeding movement (DBB) is pulled forward by the pipe during the bending process of the pipe. In this way, the "positive thrust" is removed, then the synchronization between the trolley and the zigzag speed is removed, the negative feedback system of DC motor set to increase the "positive thrust" is removed, and the electrical circuit is simplified. Because the positive thrust is beneficial to the zigzag of the pipe, especially when the zigzag diameter of the pipe is large, the positive thrust is necessary. Therefore, VB pipe bender has added boost equipment.
c. In case of twists and turns, the trolley is pulled forward by the pipe as a load. In order to improve the twists and turns, avoid the excessive thinning of the wall thickness of the twists and turns of the pipe, reduce the rebound, and increase the booster equipment. When bending, the die not only compresses the pipe, but also is pushed forward by the auxiliary thrust to form a side thrust for bending.
d. The elbow arm is connected with the zigzag main shaft, the elbow bending die shaft can be replaced, and the clamping die moves up and down. In this way, the structure is not only reasonable, the strength of the mechanical part is increased, but also the structure is simple, and then the electrical circuit is simplified.
e. When feeding a bend after all, the trolley may collide with the die. At this time, the function of "dry area" can be used, that is, the die returns → the trolley continues to feed → the elbow arm returns → the spatial angle (POB) → clamping the die → the collet is loosened, and the trolley exits the dry area → pressing the die → bending the pipe. In this way, the elbow not only avoids the collision between the trolley and the die, but also ensures the smooth end of a bend, and can reduce the loss of material head clamping and reduce the production cost.
f. The welding bed adopts simple and compact structure.
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