Anti-deflection device for lower die of bender and processing method thereof

Abstract

The invention discloses an anti-deflection device for a lower die of a bender and a processing method thereof, and relates to improvements of an anti-deflection device for a lower die of a bender better matched with the shape of a deflection line and a processing method thereof. The anti-deflection device is arranged between the lower die and a rack workbench, and comprises an upper cover plate, a base, an upper wedge block, a lower wedge block and an upper wedge block driving device, wherein the involution surfaces of the upper wedge block and the lower wedge block are provided with multiple bevels mutually keeping surface contact and facing the same direction respectively; and the gradient of the middlemost bevel is greater than that of the bevels on the two sides, and is gradually reduced towards the two ends one by one. The upper wedge block driving device is fixedly connected to one end surface of the upper wedge block so as to drive the upper wedge block to move relative to the lower wedge block; the top surface of the upper wedge block protrudes upwards, and the protruding height of the middle part is larger than that of the two ends; and the upper cover plate is arranged on the top surface of the upper wedge block. The anti-deflection device disclosed by the invention has the advantages of high precision, strong bearing capacity, long service life and the like, and is a perfect choice for users with remarkably high requirements on bending precision.

Description

technical field [0001] The invention relates to the improvement of the structure of the anti-deflection device of the bending machine and the processing method. Background technique [0002] When the bending machine is processing, due to the rigidity of the machine tool, the bent corner line will appear "deep" at both ends and "shallow" in the middle. In the prior art, a solution is proposed for this purpose, such as Figure 4 As shown, a device for supporting the lower mold has been designed, including an upper cover plate, a base, a tie rod 8, several lower wedges 7, and several upper wedges 9, and all the upper wedges are connected by a very long pull rod 8 The block 9 is connected as a whole. When working, the motor drives the reducer, and the rotation of the reducer drives the screw to rotate. After the screw rotates, the upper wedge 9 will be displaced in the length direction. Because the top surface of each group of upper wedges 9 is flat, the height of the upper wed...

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Problems solved by technology

In the prior art, a solution is proposed for this purpose, such as Figure 4 As shown, a device for supporting the lower mold has been designed, including an upper cover plate, a base, a tie rod 8, several lower wedges 7, and several upper wedges 9, and all the upper wedges are connected by a very long pull rod 8 The block 9 is connected as a whole. When working, the motor drives the reducer, and the rotation of the reducer drives the screw to rotate. After the screw rotates, the upper wedge 9 will be displaced in the length direction. Because the top surface of each group of upper wedges 9 is flat, the height of the upper wedges 9 will be inconsistent after moving, the middle is higher, and the two sides are lower, so that the curve formed in this way is consistent with the actual deflection curve The degree of matching is not high, only approximate similarity

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