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A servo hydraulic press

A technology of presses and servo motors, applied in the field of presses, can solve the problems of increasing system cost, speed, flow and power control, etc.

Inactive Publication Date: 2013-08-07
科斯库诺斯金属成型机械工业及贸易公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These non-standard and purpose-built components add substantially to the cost of the system
Also, during control of large motors, there may be sensitivity issues
As a result, rotational speed, flow and power control cannot be achieved with the required sensitivity during free fall, return and pressure delivery

Method used

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  • A servo hydraulic press
  • A servo hydraulic press

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Embodiment Construction

[0054] In this detailed description, the servohydraulic press which is the subject of the invention will be explained with reference to specific examples which are intended to make the subject of the invention easier to understand without constituting any limitation.

[0055] refer to figure 1 , in the present invention, the driving force of the connecting rod 110 is preferably provided by two oil cylinders 10 , 20 . The piston arm 13 , 23 of each cylinder 10 , 20 is connected to one end of a connecting rod 110 . Since the system is symmetrical, only one cylinder 10 will be given a detailed description below. The cylinder 10 serving as a driving element has a cylinder body 11 , a piston arm 13 connected at one end to a connecting rod 110 , and a piston head 12 connected to the piston arm 13 and moving up and down inside the cylinder body 11 . Said piston head 12 divides the cylinder block 11 into two compartments called upper and lower chambers 14, 15, respectively. The upp...

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PUM

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Abstract

A press comprising at least one cylinder (10); a main servo motor (40) and a first hydraulic pump (41) which is driven by the main servo motor (40), whose one output is connected through hydraulic lines (43, 44, 54) to an upper chamber (14) and whose other output is connected hydraulically through hydraulic lines (43, 44, 54) to a lower chamber (15); an auxiliary servo motor (50) and a second hydraulic pump (51) which is driven by the auxiliary servo motor (50) and whose one output is connected to the lower chamber (15) through a hydraulic line (53, 55) and to the input of the first hydraulic pump (41) through another hydraulic line (53, 43); and an electronic control unit which adjusts the velocities and directions of the main and auxiliary servo motors (40, 50) according to the requirements in the free fall, pressing and return steps.

Description

technical field [0001] The present invention relates to servo hydraulic presses and in particular to such presses comprising a cylinder block; a piston arm connected at one end to a connecting rod; at least one cylinder and a piston separating the cylinder block into two parts called an upper chamber and a lower chamber a main servo motor; and a hydraulic pump driven by the main servo motor, one output of which is hydraulically connected to the upper chamber through an associated hydraulic line and the other output is hydraulically connected through an associated hydraulic line connected to the lower cavity. Background technique [0002] Traditional hydraulic presses use AC standard motors and variable displacement pumps to generate pressure. Servo-proportional throttle valves are used to regulate speed and power. Thus, the pump applies oil to the cylinder, the output of which is connected to a servo proportional valve. Therefore, the amount of oil pumped through the valv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B30B15/24B30B15/16
CPCF15B2211/7053B30B15/24F15B7/006F15B2211/20576F15B2211/20515F15B2211/785F15B2211/20546F15B2211/27F15B2211/20561B30B15/16F15B2211/7107
Inventor H·德米尔S·约鲁科格卢
Owner 科斯库诺斯金属成型机械工业及贸易公司