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Manual hydraulic punching machine

A stamping machine and hydraulic technology, which is applied in the field of manual hydraulic stamping machines, can solve problems such as inapplicability and inability to ensure safety

Active Publication Date: 2017-09-01
JATCO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The above safety devices cannot be applied if it is not an automatic punching machine with a power source
However, in the manual hydraulic punching machine, since the pump that supplies oil to the hydraulic cylinder can be operated with one hand, the punching can be performed with the other hand placed between the hydraulic cylinder and the table on which the workpiece is placed. There is a problem that the safety cannot be guaranteed

Method used

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  • Manual hydraulic punching machine
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Embodiment Construction

[0022] Hereinafter, embodiments of the present invention will be described with reference to the drawings.

[0023] figure 1 A schematic configuration of a manual hydraulic press machine according to an embodiment of the present invention is shown.

[0024] Manual hydraulic punching machine (hereinafter referred to as punching machine.) 1 includes: frame 2, hydraulic cylinder 3 installed on the upper side 2a of frame 2, manual pump 4 for supplying hydraulic oil to hydraulic cylinder 3, holding or releasing hydraulic pressure Pressure relief valve 5 for cylinder 3. In addition, a table 2 b on which a workpiece (not shown) is placed is attached to the frame 2 .

[0025] A bracket 6 is installed on the connecting rod 3 a of the hydraulic cylinder 3 , and the two ends of the bracket 6 are connected with the top 2 a of the frame 2 by two springs 7 . In the state where the oil pressure of the hydraulic cylinder 3 is released, the two springs 7 lift up the connecting rod 3a togeth...

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Abstract

The present invention provides a manual hydraulic punching machine, which can be operated only in the state of using two hands. The manual hydraulic punching machine (1) has: a frame (2); a hydraulic cylinder (3) installed on the frame (2); a manual pump (4) for supplying working oil to the hydraulic cylinder (3); Lower the relief valve (5) that maintains the oil pressure of the hydraulic cylinder (3) at the oil pressure holding position, and returns to the oil pressure releasing position to release the oil pressure of the hydraulic cylinder (3) when it is not operated.

Description

technical field [0001] The present invention relates to a manual hydraulic stamping machine. Background technique [0002] Patent Document 1 discloses a safety device in which two power-on switches are provided on the left and right sides of the press machine, and the press machine operates only when the operator simultaneously operates the two switches with both hands. [0003] Patent Document 1: Japanese Patent Application Publication No. 5-69498 [0004] If the above-mentioned safety device is not an automatic punching machine with a power source, it cannot be applied. However, in the manual hydraulic punching machine, since the pump that supplies oil to the hydraulic cylinder can be operated with one hand, the punching can be performed with the other hand placed between the hydraulic cylinder and the table on which the workpiece is placed. There is a problem that safety cannot be ensured. Contents of the invention [0005] The present invention has been made in view...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B30B15/00F16P3/22
Inventor 池田淳一横手达男
Owner JATCO LTD