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Longitudinal mechanical flexibility compensation device for worktable of bending machine and manufacturing method of longitudinal mechanical flexibility compensation device

A compensation device and worktable technology, applied in the field of bending machines, can solve problems such as accumulated errors and inconsistencies in compensation values, and achieve the effects of enhancing wear resistance, high movement consistency, and ensuring accuracy

Pending Publication Date: 2019-02-15
ANHUI LIYUAN NUMERICAL CONTROL CUTTING TOOL & PATTERNS MFG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Aiming at the clearance fit between the upward inclined block and the upper fixed plate and the downward inclined block and the lower carriage in the prior art, there is a cumulative error, which leads to the problem that the compensation value of the downward inclined block group is inconsistent when it moves left and right, The purpose of the present invention is to provide a longitudinal mechanical deflection compensation device for the workbench of a bending machine. The upper slant plate and the lower slant plate are integral structures, which can eliminate or offset accumulated errors and ensure the accuracy of bending and forming.

Method used

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  • Longitudinal mechanical flexibility compensation device for worktable of bending machine and manufacturing method of longitudinal mechanical flexibility compensation device
  • Longitudinal mechanical flexibility compensation device for worktable of bending machine and manufacturing method of longitudinal mechanical flexibility compensation device
  • Longitudinal mechanical flexibility compensation device for worktable of bending machine and manufacturing method of longitudinal mechanical flexibility compensation device

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Experimental program
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Effect test

Embodiment 1

[0043] Such as figure 1 Shown is a structural schematic diagram of the longitudinal mechanical deflection compensation device of the bending machine workbench in the prior art, wherein the downward slope block includes several numbers, and the defects of the compensation device are: (1) the upper slope block and the upper fixed plate and the downward slope There is a gap fit between the block and the lower carriage, and there is a cumulative error, which leads to inconsistent compensation values ​​when the downward inclined block group moves left and right (production error caused by tool wear); (2) The carriage adopts laser Cutting and forming, there is a length error of thermal expansion and contraction; the slope of the inclined block is made by a grinder, which is inefficient.

[0044] Please refer to Figure 2 to Figure 4 , The longitudinal mechanical deflection compensation device of the bending machine workbench of this embodiment includes a base 300 , a cover plate 40...

Embodiment 2

[0051] The working principle of this embodiment is: during the manufacturing process of the longitudinal mechanical deflection compensation device of the workbench, the wedge groups are evenly distributed along the rectangular groove 310, the angle of the middle wedge is the largest, and the angle decreases successively along the length direction. The wedge angle is the smallest (generally 0.08°). When the wedges are shifted equidistantly, because the middle wedge angle is large, the middle of the table can be bulged to form a corresponding deflection curve to achieve the purpose of deflection compensation.

[0052] Through the DEFORM finite element analysis software, the stamping springback of the sheet metal is simulated and analyzed, and the orthogonal test method is used to effectively deal with the influencing factors. The purpose of the orthogonal test is to observe the springback angle by changing the level of each factor. size, so as to determine the best factor level c...

Embodiment 3

[0058] The manufacturing method of the bending machine workbench longitudinal mechanical deflection compensation device in this embodiment includes the steps:

[0059] S101. Select two plates of the same high-strength steel material, 60# carbon steel chemical composition: C content 0.6%; Si content 0.2%; Mn content 0.6%; Cr content ≤ 0.25%; Ni content ≤ 0.30%; Cu Content≤0.25%, the rest is Fe;

[0060] S102. On the numerically controlled machine tool, determine one end of the upper slant plate 100 as the starting point for processing, and process the first inclined plane 120 of the upper slant plate 100 on a vertical surface, wherein the feed amount L1=[W(C) / W(Si )]*0.1=0.6 / 0.2*0.1=0.3mm; cutting speed V1=[(W(C)+W(Mn)) / W(Si)]*500=(0.6+0.6) / 0.2*500= 3000mm / min, W(C), W(Mn), and W(Si) all represent weight percentages, the slope K of the first slope 120 determines different segmental values ​​according to the deflection curve, and the maximum value of the deflection curve is det...

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Abstract

The invention discloses a longitudinal mechanical flexibility compensation device for a worktable of a bending machine and a manufacturing method of the longitudinal mechanical flexibility compensation device, and belongs to the technical field of bending machines. The longitudinal mechanical flexibility compensation device comprises an upper sloping plate and a lower sloping plate; the upper sloping plate and the lower sloping plate are of an integral structure and consistent in size; first slope surfaces in the longitudinal direction are arranged on the lower surface of the upper sloping plate; the slopes of the first slope surfaces are reduced from a larger slope Kj to a smaller slope Ki from the middle to the two ends; the two adjacent first slope surfaces are connected through an arcsurface; the radians of the arc surfaces are increased from a smaller radian Ri to a larger radian Rj from the middle to the two ends; and second slope surfaces corresponding to the first slope surfaces are arranged on the upper surface of the lower sloping plate. The upper sloping plate and the lower sloping plate are of an integrated structure and consistent in size, so that the moving consistency of the lower sloping plate is high, accumulative errors can be eliminated or cancelled, and the bending molding accuracy is ensured.

Description

technical field [0001] The invention belongs to the technical field of bending machines, and more specifically relates to a longitudinal mechanical deflection compensation device of a working table of a bending machine and a manufacturing method thereof. Background technique [0002] In the process of bending the plate, the bending machine often inevitably has the elastic deformation of the slider caused by the force of its own structure. Although the deformation is extremely small, for high-precision bending workpieces, the workpiece is still It is prone to deflection and deformation, and the consistency of the angle cannot be guaranteed. For traditional bending machines that use hydraulic pressure as the force source, due to the uneven force applied by the oil cylinder, a deflection will be generated in the length direction of the workpiece during the bending process, and the ultra-long bending die is also often used for bending Bending shorter workpieces will cause the u...

Claims

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Application Information

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IPC IPC(8): B21D5/00B21D37/01B23Q23/00
CPCB21D5/00B21D37/01B23Q23/00
Inventor 张一帆胡有青张迎年张波
Owner ANHUI LIYUAN NUMERICAL CONTROL CUTTING TOOL & PATTERNS MFG
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