JPS5913600A - Adjusting method of bottom dead point of slide in press machine - Google Patents
Adjusting method of bottom dead point of slide in press machineInfo
- Publication number
- JPS5913600A JPS5913600A JP12345282A JP12345282A JPS5913600A JP S5913600 A JPS5913600 A JP S5913600A JP 12345282 A JP12345282 A JP 12345282A JP 12345282 A JP12345282 A JP 12345282A JP S5913600 A JPS5913600 A JP S5913600A
- Authority
- JP
- Japan
- Prior art keywords
- slide
- bottom dead
- press machine
- dead point
- die
- 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.)
- Pending
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
- B30B15/04—Frames; Guides
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B30—PRESSES
- B30B—PRESSES IN GENERAL
- B30B15/00—Details of, or accessories for, presses; Auxiliary measures in connection with pressing
- B30B15/34—Heating or cooling presses or parts thereof
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Presses And Accessory Devices Thereof (AREA)
Abstract
Description
【発明の詳細な説明】
本発明はプレス機におけるスライド下死点の調節方法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for adjusting the bottom dead center of a slide in a press.
この種のプレス機は第1図に示すように左右側枠(+)
A 、 (1)Bと上下枠(1)C、(+)Dからなる
機枠(1)内に上下摺動自在にスライド(2)を取付は
該スライド(2)は上部から駆動軸(3)によって上下
動されるコネクション(4) 、 (4)に支持される
構成を有するものである。上記構成にお込ては駆動軸(
3)を回転させてコネクション(+) 、 (4)を介
してスライド(2)を−ト下動せしめ、スライド(2)
下面に取付けた金型(2)Aと載台(5)上の金型(2
)Bの上に送り込まれる被加工物Pをプレス加工するも
のである。この際、駆動軸(3)、コネクション(4)
、 (4)、スライド(2)等の回転、摺動Wよって
生ずる摩擦熱によってコネクション(4) 、 (4)
やスライド(2)等が膨張変形してスライド(2)下面
の下死点が変化し、つぶし加工等のプレス加工の製品精
度に支障をきたす。そこで上記プレス機各部の熱変形を
補償し下死点の変化を消去するために従来は(1)上記
摩擦熱による上記プレス機各部の昇温か無視出来る程度
に高温でプレス機全体を予備加熱する方法、(2)スラ
イド下面の下死点の変化を検出し、それに応じてコネク
ションを冷却する方法等が提供されている。しかしく1
ンの方法ではプレス機の熱容猷は大であり高温に加熱す
るためのエネルギー消費が大きく、シたがってエネルギ
ー損失も大きいこと、金型が高温によって変形すること
等の欠点があり、(2)の方法では冷却装置が高価であ
り、またコネクション内部は補強リブ等が設けられかつ
密閉されているから熱の発散が困難で冷却がしにくく、
かつコネクションの変形を補償するためには厳密な温度
管理が必要であると言う欠点がある。This type of press machine has left and right side frames (+) as shown in Figure 1.
The slide (2) is installed in a machine frame (1) consisting of A, (1)B, upper and lower frames (1)C, (+)D so that it can slide up and down.The slide (2) is connected to the drive shaft ( It has a structure supported by connections (4) and (4) which are moved up and down by (3). In the above configuration, the drive shaft (
3) to move the slide (2) down through the connections (+) and (4), and then slide (2)
Mold (2) A attached to the bottom surface and mold (2) on the platform (5)
) A workpiece P fed onto B is pressed. At this time, drive shaft (3), connection (4)
, (4), Connection (4) due to frictional heat generated by rotation and sliding W of slide (2), etc.
The slide (2) and the like expand and deform, and the bottom dead center of the lower surface of the slide (2) changes, which impairs the product accuracy of press work such as crushing. Therefore, in order to compensate for the thermal deformation of each part of the press machine and eliminate the change in the bottom dead center, the conventional method is to (1) preheat the entire press machine at a high temperature to the extent that the rise in each part of the press machine due to the frictional heat can be ignored. (2) A method of detecting a change in the bottom dead center of the lower surface of the slide and cooling the connection accordingly. But 1
In this method, the press machine has a large heat capacity and consumes a lot of energy to heat it to a high temperature, so there are disadvantages such as a large energy loss and the mold deforming due to high temperature (2). ), the cooling device is expensive, and the inside of the connection is sealed with reinforcing ribs, making it difficult to dissipate heat and make cooling difficult.
Another drawback is that strict temperature control is required to compensate for connection deformation.
本発明は上記欠点を改良(7て部用な手段でプレス機の
熱変形を補償して下死点の変化を消去することを目的と
し、プレス機の左右側枠部分の加熱手段を調節すること
を骨子とする。The present invention aims to improve the above-mentioned drawbacks (7) to compensate for the thermal deformation of the press and eliminate the change in the bottom dead center by adjusting the heating means of the left and right side frames of the press. That is the main point.
第2図は本発明にかかる第1実施例を示すものである。FIG. 2 shows a first embodiment of the present invention.
図において、機枠(1)は左右側枠(+)A 、 (+
)Bと上下枠(1)C、(1)I)とからなり、機枠(
1)内にはスライド(2)がに下柄動自在に取付けられ
、該スライド(2)は上部から駆動1Flll(3)に
よって上下動されるコネクション(4) 、 (4)に
支持される。スライド(2)の下面には金型(2)Aが
取付けられ、下枠(1)D上面には該金型(2)Aに相
対I2て載台(5)の上に(2)Bが設置せられる。左
右側枠(+)A 、 (+J B内には挿入孔(6)
A 、 (6) Eが設けられており、核挿入孔(6)
A 、 (6) Hにはν11熱ヒーター(7)A、
(7)J(が夫々挿着される。In the figure, the machine frame (1) is the left and right side frames (+)A, (+
)B and upper and lower frames (1)C, (1)I), the machine frame (
A slide (2) is movably mounted in the lower part of the slide (1), and the slide (2) is supported by connections (4) and (4) which are moved up and down by a drive 1Fllll (3) from the top. A mold (2) A is attached to the lower surface of the slide (2), and a mold (2) B is attached to the upper surface of the lower frame (1) D on the platform (5) relative to the mold (2) A. will be installed. There are insertion holes (6) in the left and right side frames (+) A, (+J B)
A, (6) E are provided, and the nucleus insertion hole (6)
A, (6) H has ν11 thermal heater (7) A,
(7) J( are inserted respectively.
上記構成において駆動11Qh(31を駆動回転団しめ
ると同時に電熱ヒーター(7)A 、 (7) B K
通電して左右側枠(+)A 、 (11Hの加熱を開始
する。載台(5)の金型(2)Bの上に被加工物Pを逐
次送り込んで駆動軸(3)の回転によってコネクション
(4) 、 (4)を介して上下摺動するスライド(2
)のF而に数句けられている金型(2)A及び載台(5
)上の金型(2)Bによって核彼加工物Pを連続的に所
定のIK状に成形する。コネクション(4)、(4)や
スライド(2)等が摩擦熱によって変形(伸び)をし始
めるとそれに応じて左右側枠(+)A 、 (+)Bを
電熱ヒーター(7)A、(7)Bによって加熱して変形
(伸び)させ、コネクション(4) 、 (4)やスラ
イド(2)等の変形を補償し、スライド(2)下面の下
死点の変化を消去する。左右側枠(+)A 、 (1)
13の電熱ヒーター(7)A。In the above configuration, when the drive 11Qh (31) is closed, the electric heaters (7)A, (7)BK
Turn on the power and start heating the left and right side frames (+) A and (11H. Workpieces P are sequentially fed onto the mold (2) B of the mounting table (5) and heated by the rotation of the drive shaft (3). A slide (2) that slides up and down via connections (4), (4)
), the mold (2) A and the mounting stand (5
) The nuclear workpiece P is continuously molded into a predetermined IK shape using the mold (2)B on the mold (2)B. When connections (4), (4), slide (2), etc. begin to deform (stretch) due to frictional heat, electric heaters (7) A, ( 7) It is heated and deformed (stretched) by B to compensate for the deformation of connections (4), (4), slide (2), etc., and eliminate the change in the bottom dead center of the bottom surface of slide (2). Left and right side frames (+) A, (1)
13 electric heaters (7)A.
(7)Bの調節方式は一般にスライド(2)もしくけ金
型(2)Aの下死点を検出してそれによって電熱ヒータ
ー(7) A 、 <7> Bに通電する電流もしくは
電圧′fK−調節する方法、あるいはF死点における金
型(2)而と載台(5)H面との距離(ダイハイドと言
う)の時間的変化を予め第3図に示すようにプτコツト
■7ておき、該プロットにしたがって電熱ヒーター(7
) A 、 (7) Bに通電する電流もしくは電圧を
調節する方法等がある。前者において下死点検出には例
えば高周波発振形近接スイッチのような距離を電圧に直
線的に変換する検出器を用いることが望ま17いが、他
の近接スイッチ、差動トランス等の適当な検出器も当然
用いることが出来る。(7) The adjustment method for B is generally to detect the bottom dead center of slide (2) or die (2) A, and then adjust the current or voltage 'fK applied to electric heater (7) A, <7> B. - Adjustment method, or the temporal change in the distance between the mold (2) and the mounting table (5) H surface at the F dead center (referred to as die-hide) in advance as shown in Figure 3. Then, according to the plot, install an electric heater (7
) A, (7) There are methods of adjusting the current or voltage applied to B. In the former case, it is desirable to use a detector that linearly converts distance into voltage, such as a high-frequency oscillation type proximity switch, to detect the bottom dead center, but other suitable detection methods such as a proximity switch or a differential transformer may also be used. Of course, utensils can also be used.
第4図は本発明にかかる第2実施例を示すものである。FIG. 4 shows a second embodiment of the present invention.
本例においては左右側枠(1) A−、(+) B内に
送通孔HA、CIQBが設けられており、積送通孔C1
(′9A。In this example, the through holes HA and CIQB are provided in the left and right side frames (1) A- and (+) B, and the through holes C1
('9A.
0・Bには熱媒が送通される。A heating medium is passed through 0.B.
第5図は本発明にかかる第3実施例を示すものである。FIG. 5 shows a third embodiment of the present invention.
本例においては左右側枠(+) A 、 (+) B内
に挿通される機枠(1)固定のためのタイロッド(イ)
、(イ)内を中空としてその中に熱媒(8)を充j真し
、該熱媒(8)を電熱ヒーター(イ)A、い)Aによっ
て加熱する。In this example, tie rods (A) for fixing the machine frame (1) inserted into the left and right side frames (+) A and (+) B
, (a) is made hollow and a heating medium (8) is filled therein, and the heating medium (8) is heated by electric heaters (a) A and (i) A.
第6図は本発明にかかる第4実施例を示すものである。FIG. 6 shows a fourth embodiment of the present invention.
本例においてはタイロッド(イ)、(イ)内を中空とし
、でその中に送通管(イ)B、(イ)Bを挿着し、該送
通管(4)B、(イ)B中に熱媒(8)を送通する。In this example, the tie rods (A) and (A) are hollow, and the delivery pipes (A) B and (A) B are inserted into them, and the delivery pipes (4) B, (A) are A heating medium (8) is passed through B.
本発明は上記したようにコネクション、スライド等の摩
擦熱による変形に機枠の左右側枠を加熱変形することに
よって補償し、もってスライドのF而の下死点の変化を
消去するから、該左右側枠はコネクション、スライドに
比して寸法的に長く、また外界に開放されているから若
干の加熱によって変形量は大きく、また冷却効率も大で
あり応答の迅速かつ高精度な下死点管理が行われること
が出来、また加熱に要するエネルギーも節約される。更
に左右側枠は相互に加熱の影響を受けない程度に離れて
いるかr:)互いに別個に加熱制御され得るし各側枠前
後の加熱制御を加えて四点制御することも+47能であ
る。As described above, the present invention compensates for the deformation caused by frictional heat of connections, slides, etc. by heating and deforming the left and right side frames of the machine frame, thereby eliminating the change in the bottom dead center of the slide. The side frames are dimensionally longer than the connections and slides, and since they are open to the outside world, the amount of deformation is large due to slight heating, and the cooling efficiency is also high, allowing for quick response and highly accurate bottom dead center control. can be carried out, and the energy required for heating is also saved. Furthermore, the left and right side frames are separated from each other to an extent that they are not affected by heating.The heating can be controlled separately from each other, and it is also possible to perform four-point control by adding heating control before and after each side frame.
更に左右側枠の711熱の影響はコネクションヤスライ
ド等の他のプレス機部分にけ殆んど及されない。Furthermore, the influence of the 711 heat on the left and right side frames is hardly exerted on other parts of the press such as the connection and slides.
第1図はプレス機の従来例の断面図、第2図以下は本発
明の一実施例を示し、第2図は断面図、第3図は下死点
における金型面と載台上面との距離の時間的変化を示す
グラフ、第4図は本発明の第2実施例、第5図は第3実
施例、第6図は第4実施例を示す断面図である。
特π[出願人 株式会社山田プレス販売第1ロ
ブ 2 園
、IC
/′
ブ 3 閲
34 口
]C
ズ 5 ■Fig. 1 is a sectional view of a conventional example of a press machine, Fig. 2 and the following show an embodiment of the present invention, Fig. 2 is a sectional view, and Fig. 3 shows the die surface and the top surface of the platform at the bottom dead center. FIG. 4 is a cross-sectional view showing a second embodiment of the present invention, FIG. 5 a third embodiment, and FIG. 6 a fourth embodiment. Special π [Applicant: Yamada Press Co., Ltd. Sales No. 1 Rob 2, IC/' Bu 3 View 34 mouth] C Zu 5 ■
Claims (1)
、動軸の回転圧よって上下動するコネクションによって
上部から支持されるスライドとからなるプレス機におい
て、該機枠の左右側枠部分の加熱手段の加熱温度および
/または加熱時間を調節することを特徴とするプレス機
におけるスライド下死点の調節方法A machine frame consisting of left and right side frames and a top and bottom frame, and an Fxl inside the machine frame.
, a press machine consisting of a slide supported from above by a connection that moves up and down by the rotational pressure of a moving shaft, characterized in that the heating temperature and/or heating time of the heating means of the left and right side frame portions of the machine frame is adjusted. How to adjust the bottom dead center of the slide in a press machine
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12345282A JPS5913600A (en) | 1982-07-14 | 1982-07-14 | Adjusting method of bottom dead point of slide in press machine |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP12345282A JPS5913600A (en) | 1982-07-14 | 1982-07-14 | Adjusting method of bottom dead point of slide in press machine |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5913600A true JPS5913600A (en) | 1984-01-24 |
Family
ID=14860955
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP12345282A Pending JPS5913600A (en) | 1982-07-14 | 1982-07-14 | Adjusting method of bottom dead point of slide in press machine |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5913600A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5425741U (en) * | 1977-07-25 | 1979-02-20 | ||
JPS56163100A (en) * | 1980-05-19 | 1981-12-15 | Amada Co Ltd | Method and apparatus for controlling temperature displacement of frame of machine tool |
-
1982
- 1982-07-14 JP JP12345282A patent/JPS5913600A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5425741U (en) * | 1977-07-25 | 1979-02-20 | ||
JPS56163100A (en) * | 1980-05-19 | 1981-12-15 | Amada Co Ltd | Method and apparatus for controlling temperature displacement of frame of machine tool |
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