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Bending machine lower table

A workbench and bending machine technology, applied in the field of bending machines, can solve the problems of dimensional error and large deflection of bending parts, and achieve the effects of improving bending processing accuracy, improving qualification rate and simple operation

Active Publication Date: 2020-02-18
王勇
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The lower workbench of the existing bending machine is installed on both sides of the side vertical plates on both sides of the frame. When the bending process is performed, the middle of the lower workbench is under downward pressure, while the two sides are under upward support. , which will produce a large deflection, which will cause large dimensional errors in bent parts, especially long-sized bent parts

Method used

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  • Bending machine lower table
  • Bending machine lower table
  • Bending machine lower table

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Such as figure 1 As shown, a lower workbench of a bending machine includes a main workbench and an auxiliary workbench, the main workbench is used to carry workpieces, the auxiliary workbench is used to support the main workbench, and the two The side is connected to the side vertical plate in the bending machine frame; a pulley assembly is arranged between the main workbench and the auxiliary workbench, and the auxiliary workbench supports the main workbench through the pulley assembly.

[0032] The density of the pulleys in the pulley assembly arranged between the main workbench and the auxiliary workbench can be adjusted, and the deflection generated by the workbench can be compensated by adjusting the density of the pulley distribution, so that the bending The force is evenly distributed over the entire lower table range. In Embodiment 1, the pulleys in the pulley assembly are evenly distributed along the main workbench and the auxiliary workbench, so that the forc...

Embodiment 2

[0036] The difference between embodiment 2 and embodiment 1 is that the pulleys in the pulley assembly are distributed along the main workbench and the auxiliary workbench in different densities. In Embodiment 2, the first pulley 5 is densely distributed in the middle part of the bottom vertical plate 3, and the distribution at both ends of the bottom vertical plate 3 is sparser than that in the middle part. Similarly, the second pulley 6 is on the inverted U-shaped workbench. The middle part of 2 is densely distributed, and the distribution at both ends of the inverted U-shaped workbench 2 is sparser than the middle part, such as Figure 4 shown. Considering that under the action of the bending force, the workbench deforms a lot in the middle due to the deflection, and the deformation at both ends is small due to the support force of the side riser 1 of the frame to the workbench. Therefore, when arranging the pulley assembly, the There are relatively more pulleys arranged ...

Embodiment 3

[0038] Such as Figure 5 As shown, a lower workbench of a bending machine includes a main workbench and an auxiliary workbench, the main workbench is used to carry workpieces, the auxiliary workbench is used to support the main workbench, and the two The side is connected to the side vertical plate 1 in the bending machine frame; a pulley assembly is arranged between the main workbench and the auxiliary workbench, and the auxiliary workbench supports the main workbench through the pulley assembly.

[0039] In Embodiment 3, the main workbench and the auxiliary workbench preferably adopt the following structure, as Figure 5As shown, the main workbench is an inverted U-shaped workbench 2, the upper surface of the inverted U-shaped workbench 2 is used to carry workpieces, the auxiliary workbench is a bottom vertical plate 3, the main workbench and the auxiliary workbench The structure of the workbench is the same as that in Embodiment 1. Described pulley assembly comprises the ...

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Abstract

The invention discloses a lower working table of a bending machine. The working table comprises a main working table and an auxiliary working table, wherein the main working table is used for bearinga workpiece, and the auxiliary working table is used for supporting the main working table; and a pulley assembly is arranged between the main working table and the auxiliary working table, and the auxiliary working table supports the main working table through the pulley assembly. When the bending machining is conducted, the actual bending force required by machining is made to be uniformly distributed in the range of the whole working tables through the pulley assembly, the bending force can also be made to be distributed densely in the middle of the working tables and be distributed sparsely at both ends of the working tables, so that the large deflection generated by the working table under the combined action of the supporting force on both sides and the downward bending force in themiddle is avoided.

Description

technical field [0001] The invention relates to a lower workbench of a bending machine, which belongs to the technical field of bending machines. Background technique [0002] The lower workbench of the bending machine is used to place the workpiece so that the workpiece can be bent on the lower workbench. The lower workbench of the existing bending machine, its two sides are respectively installed on the side vertical plates on both sides of the frame, when the bending process is performed, the middle of the lower workbench is under downward pressure, while the two sides are under upward support force , which will produce a large deflection, which will cause large dimensional errors in bent parts, especially long-sized bent parts. In order to correct the bending size error of the processed parts caused by the deflection of the lower table, the bending machine needs to be additionally equipped with a mechanical or hydraulic deflection compensation device to correct or parti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B21D11/00B21D11/22
CPCB21D11/00B21D11/22
Inventor 王勇林艳
Owner 王勇