Heat balance system in punch apparatus

Abstract

The present invention provided a heat balance system in a punch apparatus, which comprises a driving mechanism, a slider, a upper seat and a base; the upper seat, the slider and the base are made of material with the same expansion coefficient, and the lengths of them are equal; the upper seat and the base are provided with a slide path, and the slider slips in the slide path under the action of the driving mechanism; the punch apparatus is provided with a connected oil path in the slider, the upper seat and the base, and the oil path is filled with lubricating oil; when the punch apparatus is working, the lubricating oil circulates through the oil path, evenly distributes the heat in the upper seat to the slider and the base, so that the temperature and the expansion range of them are equal or similar to.

We claim: 
     
         1 . A heat balance system in a punch apparatus, said punch apparatus comprises a driving mechanism, a slider, a upper seat and a base; said upper seat, said slider and said base are made of material with the same expansion coefficient, and the lengths of them are equal; said upper seat and said base are provided with a slide path for said slider, and said slider slips in said slide path under the action of said driving mechanism; wherein said punch apparatus is provided with a connected oil path in said slider, said upper seat and said base, and said oil path is filled with lubricating oil; when said punch apparatus is working, said lubricating oil circulates through said oil path, said lubricating oil evenly distributes the heat in said upper seat to said slider and said base, so that the temperature and the expansion range of them are equal or close to. 
     
     
         2 . The heat balance system in a punch apparatus according to  claim 1 , wherein said punch apparatus is provided with an external cooling system, said upper seat and said base are provided with a cold oil path, said cold oil path and said oil path are connected; an oil pump sends hot oil in said oil path into said external cooling system to cool, then said oil pass through said cold oil path back to said oil path and said punch apparatus. 
     
     
         3 . The heat balance system in a punch apparatus according to  claim 1 , wherein in said slider, said oil path is set as S-type or an empty cavity. 
     
     
         4 . The heat balance system in a punch apparatus according to  claim 2 , wherein in said slider, said oil path is set as S-type or an empty cavity. 
     
     
         5 . The heat balance system in a punch apparatus according to  claim 1 , wherein said lubricating oil and said oil path are also arranged in a member having relative motion in said punch apparatus. 
     
     
         6 . The heat balance system in a punch apparatus according to  claim 2 , wherein said lubricating oil and said oil path are also arranged in a member having relative motion in said punch apparatus. 
     
     
         7 . The heat balance system in a punch apparatus according to  claim 1 , the lubricating oil and the oil path are also arranged in the guide rod of the punch apparatus. 
     
     
         8 . The heat balance system in a punch apparatus according to  claim 2 , the lubricating oil and the oil path are also arranged in the guide rod of the punch apparatus.