Punching die capable of realizing self-lubrication

Abstract

The invention discloses a punching die capable of realizing self-lubrication. The punching die capable of realizing self-lubrication comprises a punching die body and an external automatic oil feeder,the punching die body comprises an upper die base, a lower die base, a cutter, a punch, a stripper plate and a lower die block; and a plurality of cutter body oil inlet channels, a cutter body main oil channel and cutter body branch oil channels are arranged in a cutter body, a plurality of oil storage grooves are formed in the inner side face, forming the peripheral face of a cutting hole, of the cutter, a plurality of oil outlet holes are formed in the back face of each oil storage groove, each oil outlet hole communicates with one cutter body branch oil channel, the cutter body branch oilchannels communicate with the cutter body main oil channel, the cutter body main oil channel communicates or is fused with the cutter body oil inlet channels, the cutter body oil inlet channels communicate with a cutter body oil inlet formed in the outer side face of the cutter, and the cutter body oil inlet is connected with an oil outlet of the automatic oil feeder through an oil pipe. Accordingto the punching die capable of realizing self-lubrication, the self-lubrication problem of the punching die can be effectively solved, the lubricating effect is good, oil is saved, pollution is small, the operation is convenient, the machining efficiency is high, the cost is saved, and the service life of the die is long.

Description

technical field [0001] The invention relates to a punching die, in particular to a punching die capable of realizing self-lubrication. Background technique [0002] Punching dies are usually used for blanking processing of metal or alloy plates with specific shapes and holes, all including upper die holder, lower die holder, cutter, punch, stripper plate and lower module, the cutter and The punches are all fixedly connected with the upper mold base, the lower module is fixedly connected with the lower mold base, and the cutter has a cutting hole consistent with the shape of the outer edge of the punched and formed product, and the stripper plate The shape of the cutting hole is adapted to the shape of the cutting hole and can move up and down in the cutting hole, the top surface of the lower module is compatible with the bottom surface of the stripping plate, and the bottom of the punch passes through the stripping plate , the upper die base is connected with the punching d...

AI Technical Summary

Problems solved by technology

[0003] Due to the high punching heat during the continuous punching process of the mold, and the frequent contact between the cutter and the plate, it is easy to cause the plate and the cutter to stick and harden, and eventually damage the edge of the mold

The traditional solution is to stop the mold intermittently during the processing, and manually lubricate the edge circle of the cutter and the plate with oil. The disadvantage of this manual lubrication operation is that it cannot effectively control the lubrication process, resulting in In actual application, either the lubricating oil volatilizes in advance, resulting in insufficient lubrication; or too much lubricating oil is attached to the punch, causing waste to adhere to the punch. These are not conducive to the normal use of the punching die, and even more unfavorable The normal use of high-speed punching dies, and if there is insufficient lubrication during the high-speed operation of the dies, a large amount of heat will be generated in a short period of time, which will deteriorate the working environment of the dies, accelerate wear and affect the use of the dies Life; if there is waste material adhesion, it will also cause damage to the product or mold, which will seriously affect the processing efficiency and product qualification rate

Although this patent does not need to stop the mold for manual oiling operation, because the lubrication method of this patent is to set the oil drip hole on the upper pressing plate, the lubricating oil liquid is dripped on the plate to be processed, so as to realize the lubrication of the plate. Lubrication and the lubrication of the bottom surface of the cutter in contact with the surface of the plate, so this lubrication method has the following defects: 1) The lubrication of the side working surface of the cutter cannot be achieved; 2) There is a lot of lubricating oil remaining on the workpiece after processing , needs to be cleaned and post-processing, resulting in sewage problems and extra man-hours and costs; 3) To achieve the lubrication of the cutting edge at the same time, a sufficient amount of lubricating oil must be added to the plate, although it can be recycled through the set oil return tank Utilization, but the return oil inevitably contains waste chips during processing. When it is reused repeatedly, it is easy to cause pollution to the plate and the edge of the cutter, and affect the product qualification rate.

[0005] In summary, it can be seen that the prior art has not solved the lubrication problem of the punching die in the work well, and the lubrication problem is an important factor affecting the service life of the mold and the pass rate, quality and cost of the processed product. Urgent need of technology that can well solve the lubricating problem of punching die

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