JPS57156899A - Absorption structure of eccentric load to ram - Google Patents
Absorption structure of eccentric load to ramInfo
- Publication number
- JPS57156899A JPS57156899A JP4036681A JP4036681A JPS57156899A JP S57156899 A JPS57156899 A JP S57156899A JP 4036681 A JP4036681 A JP 4036681A JP 4036681 A JP4036681 A JP 4036681A JP S57156899 A JPS57156899 A JP S57156899A
- Authority
- JP
- Japan
- Prior art keywords
- spherical surface
- ram
- microscopically
- shank
- goes down
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/06—Platens or press rams
- B30B15/068—Drive connections, e.g. pivotal
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Presses And Accessory Devices Thereof (AREA)
- Control Of Presses (AREA)
- Mounting, Exchange, And Manufacturing Of Dies (AREA)
Abstract
PURPOSE:To obtain a press structure which is capable of absorbing an eccentric load which is a reaction to a ram when working by press, by interposing a pair of opposed buffer members having a spherical surface, between the ram and a punch holder. CONSTITUTION:In case when reaction force of F>(f) has operated against a shank axis (a)-(a), a shank 3 is turned in the direction as indicated with an arrow centering around the supporting point of a contact point B of a die 9 of a punch 6a and the axis (a)-(a) side. Accordingly, a projecting spherical surface 3a of the shank 3 goes down microscopically against a lower hollowed spherical surface 2b of a buffer member 2. As the spherical surface 3a goes down microscopically, the member 2 goes down microscopically, as well, and is inclined to turn by being drawn along with turning of the spherical surface 3a. In this case, since the diameter of a spherical surface 2a is smaller than the diameter of the spherical surface 2b, a microscopic space is generated between a projecting spherical surface 1a of the tip of a ram and the spherical surface 2a, and the member 2 is turned microscopically. Subsequently, the spherical surface 1a and the spherical surface 2a, and the spherical surface 2b and the spherical surface 3a are returned to the normal contact state by a fall of the ram 1 and also a controlling action of repulsion compressive force of a return spring 7b.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4036681A JPS57156899A (en) | 1981-03-23 | 1981-03-23 | Absorption structure of eccentric load to ram |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4036681A JPS57156899A (en) | 1981-03-23 | 1981-03-23 | Absorption structure of eccentric load to ram |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS57156899A true JPS57156899A (en) | 1982-09-28 |
JPS6411369B2 JPS6411369B2 (en) | 1989-02-23 |
Family
ID=12578634
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4036681A Granted JPS57156899A (en) | 1981-03-23 | 1981-03-23 | Absorption structure of eccentric load to ram |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS57156899A (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0615900U (en) * | 1992-08-03 | 1994-03-01 | 三友工業株式会社 | Cantilever press device with C-shaped frame |
CN103433360A (en) * | 2013-08-30 | 2013-12-11 | 太仓市微贯机电有限公司 | Guiding type small-hole blanking die |
CN107052146A (en) * | 2017-06-09 | 2017-08-18 | 江西江铃底盘股份有限公司 | A kind of automobile drive axle housing body small hole punching mold tool and punching tapping technique |
CN107263904A (en) * | 2017-08-18 | 2017-10-20 | 江苏中海重型机床有限公司 | A kind of hydraulic press for bearing larger offset loading force |
CN107471713A (en) * | 2017-08-18 | 2017-12-15 | 江苏中海重型机床有限公司 | A kind of hydraulic press |
JP6301545B1 (en) * | 2017-10-05 | 2018-03-28 | 田中プレス工業株式会社 | Die cushion device for press machine |
JP2019000864A (en) * | 2017-06-14 | 2019-01-10 | トヨタ車体株式会社 | Metal mold driving connection mechanism |
-
1981
- 1981-03-23 JP JP4036681A patent/JPS57156899A/en active Granted
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH0615900U (en) * | 1992-08-03 | 1994-03-01 | 三友工業株式会社 | Cantilever press device with C-shaped frame |
CN103433360A (en) * | 2013-08-30 | 2013-12-11 | 太仓市微贯机电有限公司 | Guiding type small-hole blanking die |
CN107052146A (en) * | 2017-06-09 | 2017-08-18 | 江西江铃底盘股份有限公司 | A kind of automobile drive axle housing body small hole punching mold tool and punching tapping technique |
JP2019000864A (en) * | 2017-06-14 | 2019-01-10 | トヨタ車体株式会社 | Metal mold driving connection mechanism |
CN107263904A (en) * | 2017-08-18 | 2017-10-20 | 江苏中海重型机床有限公司 | A kind of hydraulic press for bearing larger offset loading force |
CN107471713A (en) * | 2017-08-18 | 2017-12-15 | 江苏中海重型机床有限公司 | A kind of hydraulic press |
JP6301545B1 (en) * | 2017-10-05 | 2018-03-28 | 田中プレス工業株式会社 | Die cushion device for press machine |
Also Published As
Publication number | Publication date |
---|---|
JPS6411369B2 (en) | 1989-02-23 |
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