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Hydraulic cylinder of bending machine and bending machine

A technology of a bending machine and a hydraulic cylinder, applied in the field of bending machines, can solve the problems of high overall cost, complex hydraulic circuit and electric control, large volume, etc., achieve compact size, simple structure, and reduce the cost of electric control and hydraulic components. Effect

Inactive Publication Date: 2020-08-11
符鹏
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The bending machine of the prior art usually needs to realize the actions of the hydraulic cylinder to advance, pressurize, and retreat. Generally, a hydraulic circuit composed of an electromagnetic reversing valve, an overflow valve, a pressure sensor, and a hydraulic lock is used to realize the control of the hydraulic pressure. The control of cylinder forward, pressurization and retreat, hydraulic circuit and electric control are complicated, the overall cost is high, and the volume is relatively large

Method used

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  • Hydraulic cylinder of bending machine and bending machine
  • Hydraulic cylinder of bending machine and bending machine
  • Hydraulic cylinder of bending machine and bending machine

Examples

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Effect test

Embodiment 1

[0020] see Figure 1-4 As shown, the present invention provides a hydraulic cylinder for a bending machine, which includes a cylinder body 1, and the cylinder body 1 is provided with a left and right through installation hole 11, and the left end cover of the cylinder body 1 is fixedly installed at the left end of the installation hole 11. 2. The right end cover 5 is fixedly installed at the right end of the installation hole 11; the valve sleeve 3 is slidably connected in the installation hole 11, and the left end cover 2 is provided with a left convex post 2a extending into the left end of the valve sleeve 3. The right end cover 5 is provided with a right convex column 5a extending into the right end of the valve sleeve 3; the right end cover 5 is provided with a right ring groove 5b on the outside of the right convex column 5a, and the right end of the valve sleeve 3 is provided with a right ring groove 5b extending into the right ring groove 5b. The right ring sleeve 31, t...

Embodiment 2

[0028] The present invention also provides a bending machine, including the hydraulic cylinder of the bending machine mentioned above.

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PUM

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Abstract

The invention discloses a hydraulic cylinder of a bending machine and the bending machine. The hydraulic cylinder of the bending machine comprises a cylinder body, wherein a mounting hole penetratingleft and right is formed in the cylinder body, a left end cover is fixedly mounted at the position, at the left end of the mounting hole, of the cylinder body, and a right end cover is fixedly mountedat the position, at the right end of the mounting hole, of the cylinder body; a valve sleeve is connected into the mounting hole in a sliding mode, a left protruding column is arranged on the left end cover, and a right protruding column is arranged on the right end cover; a right annular groove is formed in the right end cover, and a right annular sleeve is arranged at the right end of the valvesleeve; a piston body is slidably connected into the valve sleeve, and a piston rod is arranged on the left side of the piston body; a port P, a port T1 and a port T2 are formed in the outer side ofthe cylinder body; a first spring is arranged in the mounting hole; and an overflow valve is installed on the left end cover. The bending machine comprises the hydraulic cylinder of the bending machine, and the hydraulic cylinder of the bending machine and the bending machine can achieve automatic control over advancing, pressurizing and retreating of a pressing machine oil cylinder.

Description

technical field [0001] The invention belongs to the technical field of bending machines, and in particular relates to a hydraulic cylinder of a bending machine and a bending machine. Background technique [0002] A bending machine is a processing machine that bends metal sheets in a cold state in a straight line. Generally, the workbench is fixed. The piston rod of the hydraulic cylinder is connected to the slider through a connecting piece, which synchronously drives the slider to move up and down in a straight line. The upper mold installed at the bottom of the slider and the lower mold on the worktable press the workpiece into shape. The bending machine of the prior art usually needs to realize the actions of the hydraulic cylinder to advance, pressurize, and retreat. Generally, a hydraulic circuit composed of an electromagnetic reversing valve, an overflow valve, a pressure sensor, and a hydraulic lock is used to realize the control of the hydraulic pressure. The contro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F15B15/14F15B15/20B21D5/02
CPCB21D5/02F15B15/14F15B15/1423F15B15/1428F15B2215/30
Inventor 符鹏吴春保魏新
Owner 符鹏