JPS6167946U

JPS6167946U -

Info

Publication number: JPS6167946U
Application number: JP15049484U
Authority: JP
Priority date: 1984-10-03
Filing date: 1984-10-03
Publication date: 1986-05-09

Description

[Brief explanation of drawings]

第１図及び第２図は本考案の実施例を示す断面
図であり、第１図は成形パンチがダイス方向へ接
近しつつある状態、第２図はパンチホルダーが最
もダイスに接近した状態をそれぞれ示す。第３図
は本考案の装置で製造したボルトの形状を示す一
部切欠側面図、第４図は従来の装置を示す断面図
、第５図は従来の装置で製造したボルトの例を示
す一部切欠側面図、第６図はそのボルトの頭部の
二面幅部の拡大断面図である。２：ダイス、３：ダイスホルダー、５：パンチ
ホルダー、６：上下トランス、７：ダイス穴、１
２：形成ニブ、１３：成形パンチ、１４：成結パ
ンチ端面、１５：弾性体、１６：溝、１７：止め
ねじ、１８：成形ピン、１９：パンチ側けり出し
ピン、２０：パンチ側けり出しレバー、２１：ダ
イス端面、２２：予備打ちされた素材、２３：ダ
イスつき出しピン、２４：成形パンチの後端面、
２５：パンチホルダーの内端面。 Figures 1 and 2 are cross-sectional views showing an embodiment of the present invention. Figure 1 shows the forming punch approaching the die direction, and Figure 2 shows the punch holder closest to the die. Each is shown below. FIG. 3 is a partially cutaway side view showing the shape of a bolt manufactured using the device of the present invention, FIG. 4 is a sectional view showing a conventional device, and FIG. 5 is an example of a bolt manufactured using a conventional device. FIG. 6 is an enlarged sectional view of the width across flats portion of the head of the bolt. 2: Dice, 3: Dice holder, 5: Punch holder, 6: Upper and lower transformer, 7: Die hole, 1
2: Forming nib, 13: Forming punch, 14: Forming punch end face, 15: Elastic body, 16: Groove, 17: Set screw, 18: Forming pin, 19: Punch side extrusion pin, 20: Punch side extrusion Lever, 21: Die end face, 22: Pre-beaten material, 23: Die sticking pin, 24: Rear end face of forming punch,
25: Inner end surface of punch holder.

Claims

[Scope of utility model registration request]

a forming punch 13 that is slidably provided in the punch holder 5 and is biased by an elastic body 15 such as a spring so that its tip protrudes toward the die 2;
The preformed material 22 is press-fitted into the mouth of the forming punch 13 by approaching the die 2 together with the punch holder 5 with the end surface 14 of the forming punch 13 in contact with the end surface 21 of the die 2.
A forming pin 18 that presses and forms the inside of the forming nib 12.
and a punch-side kick-out pin 19 that projects in the direction of the die 2 and kicks out the forming material from the forming nib 12 at the same time as the punch holder 5 retreats after forming. .