Pressure-variable punching machine
A variable, punching machine technology, applied in the field of presses, can solve the problems of limited pressure, inability to adapt to processing, damage to the strength of the workpiece, etc., and achieve the effect of increasing the upper limit of the pressure, the overall structure is compact and reasonable, and the pressure is increased.
Inactive Publication Date: 2020-11-03
俞杏正
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Problems solved by technology
However, the traditional lever-type manual punching machine also has certain defects in the process of use: 1. Due to the comprehensive influence of the material composition of the workpiece itself and the shape of the molding, the workpiece needs to be maintained under a certain pressure when stamping, and the pressure is too high Then the strength and other indicators of the workpiece will be damaged, resulting in a decrease in the quality of the final product; therefore, it is very necessary for the manual stamping machine to perform pressure limiting protection on the workpiece.
2. Traditional lever-type manual punching machines usually have limited pressure and cannot adapt to the processing of workpieces with high pressure requirements, such as thick steel plates, high-strength steel plates, etc.
If you want to increase the pressure, the traditional way is to extend the lever arm, but for the miniaturized, portable and flexible manual punching machine, the excessively long lever arm will inevitably affect the above characteristics
Method used
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Embodiment Construction
[0026] combine Figure 1-8 The shown manual lever punching machine is the same as the traditional manual punching machine in that the present invention also includes a base 2 arranged on the support foot 1, a top frame 3 is arranged above the base 2, and the base 2 It is fixedly connected with the top frame 3 through the connecting column 4. The top frame 3 may be in the shape of a square, a circle, or the like. The top frame 3 is provided with a lever type pressure mechanism and a punch 5 for installing an upper mold 6 , and the base 2 is provided with a lower mold 7 . Usually, the punch 5 is installed on the top frame 3 in a manner that can slide up and down. For example, a guide rod is arranged on the punch 5, and the guide rod is passed through a guide hole on the top frame 3 to slide up and down. This structure is relatively Simple and conventional structure, which will not be repeated in the present invention. Similarly, the top frame 3 is usually provided with an ela...
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The invention particularly relates to a manual punching machine. The invention aims to provide a pressure-variable punching machine capable of adapting to high-strength punching. According to the technical scheme, the pressure-variable punching machine comprises a base arranged on supporting bottom feet, a top frame is arranged above the base, and a lever type pressure mechanism is arranged on thetop frame; and the lever type pressure mechanism comprises four vertical installation stand columns arranged on the top face of the top frame in a matrix shape and multiple layers of lever type pressure assemblies evenly arranged on the installation stand columns in a sleeving manner in the vertical direction. Under the condition that the overall size of the punching machine is not excessively increased, the upper limit of the pressure capable of being output by the punching machine is greatly increased, and the requirement for high-strength punching is particularly met.
Description
technical field [0001] The invention relates to the technical field of presses, in particular to a manual press. Background technique [0002] Manual punching machine is used for punching, bending and other simple processing of metal sheets, plastic sheets and other workpieces. According to the transmission mode of power, manual punching machines can be divided into screw type, lever type, cam type, and rack and pinion type. etc. Among them, the lever type manual punching machine has been widely used in the industry due to its simple structure and stable operation. However, the traditional lever-type manual punching machine also has certain defects in the process of use: 1. Due to the comprehensive influence of the material composition of the workpiece itself and the shape of the molding, the workpiece needs to be maintained under a certain pressure when stamping, and the pressure is too high Then the strength and other indicators of the workpiece will be damaged, resulting...
Claims
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Patent Timeline
Login to View More IPC IPC(8): B30B15/00B21D55/00B30B1/04
CPCB30B15/00B21D55/00B30B1/04
Inventor 俞杏正
Owner 俞杏正