Hydraulic material jacking device on press machine
A technology of ejector device and press, applied in the direction of presses, manufacturing tools, etc., which can solve the problems of the influence of vertical precision of ejector pins, unfavorable product qualification rate, unsuitable for multiple ejector pins, etc., to achieve large ejection force and small space occupation , the effect of simple structure
Pending Publication Date: 2018-01-19
南京理工大学紫金学院
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Problems solved by technology
However, since the ejection force is transmitted to the ejector pin through the lever, the vertical accuracy of the ejector pin has a certain influence, which is not conducive to improving the product qualification rate, and is not suitable for multiple ejector pins.
Method used
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Embodiment Construction
[0022] The present invention will be further described in detail in conjunction with the accompanying drawings and specific embodiments.
[0023] The hydraulic jacking device on the press proposed by the present invention is composed of a hydraulic cylinder connected by a pin shaft and a lever, a top wheel, a push rod, a guide sleeve, a hanger and a support, and the lever, the guide sleeve, the hanger and the support are screwed together Fixed on the fuselage base. When in use, the oil enters the upper cavity of the cylinder body through the upper oil port of the hydraulic cylinder, the piston moves downward, and the clamping block on the piston rod is in a relaxed state. When the oil enters the upper cavity of the cylinder through the oil port, the piston moves downward, pushing One end of the lever connected with the piston rod moves down at the same time, and the other end of the lever moves up, so that the top wheel pushes the ejector rod to move upward, and the ejector ro...
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The invention discloses a hydraulic material jacking device on a press machine. The hydraulic material jacking device comprises a press machine base, a hydraulic cylinder of the material jacking device, a lever, an ejector wheel, an ejector rod and a lower hanging base. The upper end of the hydraulic cylinder is connected to an upper hanging base through a pin shaft, and the upper hanging base isfixedly connected with a base; and the lower end of the hydraulic cylinder is fixed to the lower hanging base. The middle of the lever is connected with a middle fixing base through a pin shaft, the middle fixing base is fixedly connected to the base, and two self-lubrication bearings are arranged between the pin shaft connected to the middle of the lever and the middle fixing base, the ejector wheel is connected to the other end of the lever through a pin shaft, and two self-lubrication bearings are arranged between the pin shaft and the lever. The ejector rod freely moves up and down in a guide sleeve, friction is reduced between the ejector rod and the guide sleeve through the self-lubrication bearings, the guide sleeve is fixed to the lower end of the guide sleeve through a self-lubrication bearing, the other end of the ejector rod makes contact with the ejector wheel, and the guide sleeve is fixedly connected to the base. The hydraulic cylinder does not make direct contact with the ejector rod while making contact with the ejector rod through the lever, an oil cylinder is arranged on the side edge of the machine body, and therefore the ejecting force is larger.
Description
technical field [0001] The invention belongs to the technical field of forging machinery equipment, and in particular relates to a hydraulic jacking device on a press. Background technique [0002] At present, pneumatic jacking devices are usually used on presses. For the pneumatic jacking device, since the pressure of the air source is limited, in order to achieve a certain jacking force, the air cushion structure will be relatively large, and the base must have a certain space to install, which will inevitably affect the rigidity of the base. The relative capacity of the gas bag. [0003] In the prior art, the utility model with the application number of 200820039531.1 discloses a "hydraulic jacking device for a press", which is composed of a hydraulic mechanism consisting of an oil cylinder and a pump station to connect the ejector rod, the connecting plate and the guide column. The unique jacking mechanism can effectively achieve a large jacking force. In use, the fixe...
Claims
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Inventor 李俊敏王力江琴
Owner 南京理工大学紫金学院