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Toggle lever metal extruder

A metal extrusion and toggle lever technology, applied in the field of metal extrusion presses, can solve the problems of oil drill pipe flash, bolts are easy to break, and work efficiency is low, and achieves good frame force effect, not easy to break, and pressing efficiency. high effect

Active Publication Date: 2012-02-08
NANTONG RUNDE MECHANICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The disadvantage of this kind of conventional press is that it is necessary to use a large-tonnage frame hydraulic press of more than 1200T. The hydraulic oil in the main cylinder of the small-tonnage conventional hydraulic press is compressed during pressure maintenance, which will easily cause flashing of oil drill pipes, and rough turning is required first. Finishing can be carried out later, and the work efficiency is low, so the cost of pressing and forming with conventional presses is very high
In addition, when the side press cylinder is installed on the frame, the cylinder port flange is usually used to directly fix it on the frame through bolt connection. The bolts are easy to break and need to be replaced regularly, which affects normal production

Method used

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  • Toggle lever metal extruder
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] Such as figure 1 Shown, frame 1, workbench 2, slider 3, side pressing cylinder 4, upper support 51, upper toggle 52, lower toggle 53, lower support 54, hydraulic cylinder 61, first connecting rod 62 and The second connecting rod 63 .

[0015] The above-mentioned frame 1 is a frame type, the lower part of the frame 1 is a workbench 2, and a slider 3 is arranged on the top of the workbench 2. The vertical guide rail of the frame 1 reciprocates along the vertical direction, and the two sides of the workbench 2 are provided with side pressing cylinders 4 .

[0016] A pair of toggle mechanisms arranged symmetrically on the left and right are arranged on the upper part of the frame 1. The toggle mechanism mainly includes an upper support 51, an upper toggle 52, a lower toggle 53, and a lower support 54 arranged in sequence from top to bottom. , The upper support 51 is connected with the upper toggle 52 by the upper pin, the upper toggle 52 is connected with the lower toggle...

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PUM

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Abstract

The invention discloses a toggle lever metal extruder, which comprises a framework-type rack and is creatively characterized in that a workbench is arranged at the lower part of the rack, a sliding block is arranged above the workbench and can reciprocate on the rack along a vertical direction, and two sides of the work bench are provided with lateral pressing cylinders; a toggle lever mechanism is arranged on the upper part of the rack and mainly comprises an upper support, an upper toggle lever, a lower toggle lever and a lower support; and a driving mechanism is arranged outside the togglelever mechanism and comprises a hydraulic cylinder, a first connecting lever and a second connecting lever. A hydraulic cylinder and the lateral pressing cylinder act to drive an upper die, a left male die and a right male die to move to a lower die on the workbench for pressing. The driving mechanism drives the toggle lever mechanism to move the sliding block, the sliding block is fast in a return downward trip, and a working stroke is slow and stable; in addition, in the working stroke, the stamping pressure has long duration, the pressing efficiency is high, the stress bearing effect of the rack is good, so that the installed power is reduced and the production cost is lowered.

Description

technical field [0001] The invention relates to a metal extruder, especially a toggle metal extruder used for pressing oil drill pipes. Background technique [0002] In the extrusion molding of oil drill pipes, the traditional method uses a conventional press for pressing, that is, the slider is directly driven by the master cylinder above it to move up and down, and side pressing cylinders are set on both sides of the workbench. Use the slider to drive the upper mold and the lower mold on the workbench to extrude the rod body of the oil drill pipe, and the side pressing cylinder drives the left and right punches to assist in forming the concave cavity at both ends of the oil drill pipe. [0003] The disadvantage of this kind of conventional press is that it is necessary to use a large-tonnage frame hydraulic press of more than 1200T. The hydraulic oil in the main cylinder of the small-tonnage conventional hydraulic press is compressed during pressure maintenance, which wil...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B21C23/21
Inventor 韦银广徐加树
Owner NANTONG RUNDE MECHANICAL TECH
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