Feed depth adjustment mechanism of bending machine and bending machine

Abstract

The invention discloses a feed depth adjustment mechanism of a bending machine and the bending machine. The feed depth adjustment mechanism of the bending machine comprises a rotary cover, a stop block, a screw, an adjustment nut and a driving assembly. The rotary cover is provided with a sealed end and an open end. The stop block is fixed to a machine frame of the bending machine. One end of the screw is inserted into the rotary cover, and the other end of the screw extends out of the rotary cover through the opening end of the rotary cover. The screw penetrates through the stop block to be connected with a sliding block of the bending machine. The adjustment nut is mounted in the rotary cover and connected with the screw in a threaded mode. The rotary cover can drive the adjustment nut to rotate around the screw and enables the adjustment nut to move up and down along the screw. The driving assembly is connected with the sealed end of the rotary cover. A limiting convex part is arranged at the end, close to the stop block, of the adjustment nut. A limiting groove matched with the limiting convex part in size is formed in the end, close to the adjustment nut, of the stop block. Compared with the prior art, by adoption of the feed depth adjustment mechanism, unbalance loading between the adjustment nut and the stop block can be avoided, and the situation that the service life of the screw is affected due to the fact that non-axial force is borne by the screw is avoided.

Description

technical field [0001] The invention relates to the technical field of bending machines, in particular to a mechanism for adjusting the feed depth of a bending machine and a bending machine including the same. Background technique [0002] The function of the feed depth adjustment mechanism of the bending machine is to adjust the depth limit of the sliding block, adjust the lifting position of the limit nut, and control the feed depth of the bending machine, so that workpieces with different angles can be bent. [0003] The prior art discloses a bending machine feed depth adjustment mechanism, such as figure 1 As shown, the feed depth adjustment mechanism of the bending machine is mainly composed of handwheel 1, U-shaped fork 2, stroke adjustment screw 3, limit nut 4, chain 5, reversing gear box 6 and rotating cover 7 and other components. When turning the hand wheel 1, the chain 5 is used to drive the reversing gear box 6 to rotate, and then the rotating cover 7 is driven ...

AI Technical Summary

Problems solved by technology

[0004] In the existing adjustment mechanism of the feed depth of the bending machine, the cooperation between the limit nut 4 and the stopper 8 is a flat fit, and there is no transition compensation in the middle. In order to avoid the partial load after the limit nut 4 and the stopper 8 contact, The processing requirements for the frame are very high, and the processing accuracy must be strictly guaranteed, otherwise it will seriously affect the stress of the stroke adjustment screw 3, thereby reducing the service life of the stroke adjustment screw 3

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