JPH039293U

JPH039293U -

Info

Publication number: JPH039293U
Application number: JP6747489U
Authority: JP
Priority date: 1989-06-09
Filing date: 1989-06-09
Publication date: 1991-01-29

Description

[Brief explanation of drawings]

第１図は、この考案の一実施例を示す縦断面図
であり、第２図の−断面図、第２図は、同実
施例の平面図、第３図は、第２図の−断面図
である。１……ボルスタ、２……下型、３……往復移動
体、４……連結ロツド、５，６……連結軸、７，
８……（ころがり軸受）ニードルベアリング、７
ａ，８ａ……（転動体）ニードル、２３，３３…
…連結凹部、４１……前部連結軸、４２……貫通
孔、４３……後部連結軸、４４……貫通孔。 FIG. 1 is a vertical cross-sectional view showing an embodiment of this invention, FIG. It is a diagram. 1... Bolster, 2... Lower die, 3... Reciprocating body, 4... Connection rod, 5, 6... Connection shaft, 7,
8... (rolling bearing) needle bearing, 7
a, 8a... (rolling element) needle, 23, 33...
...Connection recess, 41...Front connection shaft, 42...Through hole, 43...Rear connection shaft, 44...Through hole.

Claims

[Claims for Utility Model Registration] A lower die that moves back and forth while being guided on a bolster to perform transfer processing is connected by a connecting rod to a reciprocating body that moves back and forth at its rear end. The connecting structure for the lower mold includes a connecting part having a vertically penetrating through hole formed at the front and rear ends of the connecting rod, and a connecting part having a vertically penetrating through hole formed in the reciprocating body. A connecting recess is formed to support the lower surface and arrange the rear connecting part, and the lower mold has a gap between the upper and lower surfaces of the front connecting part of the connecting rod to arrange the front connecting part. A connecting recess is formed, and the front and rear connecting portions of the connecting rod are respectively arranged in the connecting recesses of the reciprocating body and the lower die, and a rolling bearing is provided between the entire inner peripheral surface of the through hole. By means of a connecting shaft that is inserted vertically from the peripheral wall of each of the connecting recesses into each of the through holes with the intervening
A rolling bearing is pivotally attached to the reciprocating body and the lower die, and further arranged at the front connecting portion of the connecting rod, and the rolling element is rotated between the outer circumferential surface of the connecting shaft or the inner circumferential surface of the through hole. A connecting structure for a lower die that moves back and forth in a press machine, characterized in that the lower die is brought into contact with the lower die.