JPH0184842U

JPH0184842U -

Info

Publication number: JPH0184842U
Application number: JP1987179016U
Authority: JP
Priority date: 1987-11-25
Filing date: 1987-11-25
Publication date: 1989-06-06
Also published as: JPH0335464Y2

Description

[Brief explanation of the drawing]

図は本考案のエアーナツターの実施例を示すも
のであり、第１図はその全体の縦断正面図、第２
図は第１図のＡ―Ａ線に沿う横断端面図、第３図
は第２図のＡ―Ｂ―Ｃ線に沿つて縦断した全体の
左側面図、第４図は第２図のＤ―Ｅ―Ｆ線に沿う
一部省略縦断面図、第５図は第３図のＧ―Ｈ―Ｉ
線に沿う断面図、第６図のａ，ｂはエアー通路の
切換スプールの作動状態を示す説明図、第７図は
動力伝達機構の要部を示す縦断正面図、第８図は
第７図のＪ―Ｊ線に沿う断面図、第９図は第８図
のＫ―Ｌ線に沿う一部省略拡大断面図、第１０図
ａ及びｂは夫々フレームキヤツプの右側面図及び
一部切欠正面図である。符号の説明、２…機本体フレーム、３…エアー
シリンダー、４…エアーピストン、５…オイルシ
リンダー、６…オイルピストン、１０…スクリユ
ーマンドレル、１３…エアーモータ、１４…エア
ー供給口、１７…エアー導入通路、２３…エアー
導入孔、２４，２４…エアー導入通路、２６…連
通孔部、２７…スプール、２８…エアー導入部、
３０…エアー排出用通路、３１_２…エアー排出孔
、３２…正逆回転切換操作機構、３７…スプール
、３９…エアー導入孔、４０…エアー送出孔、４
１…エアー導入孔、４２…エアー送出孔、４４…
動力伝達機構、５０…クラツチ部材、Ｓ…スプリ
ング、Ｐ…プツシユ部材。 The figures show an embodiment of the air nutter of the present invention.
The figure is a cross-sectional end view taken along line A-A in Figure 1, Figure 3 is a left side view of the entire body taken longitudinally along line A-B-C in Figure 2, and Figure 4 is a cross-sectional view taken along line A-A in Figure 2. - Partially omitted vertical cross-sectional view along line E-F, Figure 5 is G-H-I in Figure 3
6 is an explanatory view showing the operating state of the switching spool of the air passage, FIG. 7 is a longitudinal sectional view showing the main parts of the power transmission mechanism, and FIG. 8 is a sectional view along the line. Fig. 9 is a partially omitted enlarged sectional view taken along line K-L in Fig. 8, and Figs. 10 a and b are a right side view and partially cutaway front view of the frame cap, respectively. It is a diagram. Explanation of symbols, 2... Machine body frame, 3... Air cylinder, 4... Air piston, 5... Oil cylinder, 6... Oil piston, 10... Screw mandrel, 13... Air motor, 14... Air supply port, 17... Air Introduction passage, 23... Air introduction hole, 24, 24... Air introduction passage, 26... Communication hole section, 27... Spool, 28... Air introduction section,
30...Air discharge passage, 31 ₂ ...Air discharge hole, 32...Forward/reverse rotation switching operation mechanism, 37...Spool, 39...Air introduction hole, 40...Air delivery hole, 4
1...Air introduction hole, 42...Air delivery hole, 44...
Power transmission mechanism, 50...Clutch member, S...Spring, P...Push member.

補正昭６３．４．１４図面の簡単な説明を次のように補正する。明細書第２９頁１６行目の「２４，２４」を「
２４，２４′」と補正します。Amendment April 14, 1981 The brief description of the drawing is amended as follows. "24, 24" on page 29, line 16 of the specification is replaced with "
24, 24'”.

Claims

[Scope of utility model registration request]

By moving the air piston fitted in the air cylinder forward and pressurizing the oil contained in the machine body, the oil piston is moved backward, and the screw mandrel attached to the tip of the oil piston is moved backward. In an air nutter configured to apply a deforming force to a sleeve portion of a nut member threaded onto the screw mandrel by moving backward toward the inside of the main body, air rotated by compressed air is provided inside the main body of the air nutter. An air motor is provided with a motor, an air introduction passage for driving the rotation of the air motor is provided between the air motor and a compressed air supply port in the machine body, and the direction of rotation of the air motor is switched. A forward/reverse rotation direction switching operation mechanism is provided, and a power transmission mechanism is provided between the air motor and the screw mandrel to transmit both forward and reverse rotational driving force of the air motor to the screw mandrel. An air introduction passage for forward movement of the air piston is formed between the compressed air supply port and an air introduction hole of an air cylinder on the forward movement side of the air piston, and A spool for opening/closing the air introduction passage is slidably fitted into a communication hole formed in communication with the air introduction passage, and a connection between the communication hole for fitting the spool and the compressed air supply port is provided. An air introduction part for controlling the spool, which moves the spool in the hole forward in the closing direction of the air introduction passage for forward movement of the air piston by compressed air, is formed between the air introduction part and the power transmission passage. A passage for discharging the compressed air introduced into the air introduction part is provided between the compressed air discharge port formed in the machine body near the mechanical part, and a A clutch member of the power transmission mechanism is provided which also serves as an opening/closing member for the passage, and the discharge passage is communicated with when the clutch member is rotated to a predetermined rotation angle position by a predetermined rotational torque. The air motor forward/reverse rotation direction switching operation mechanism is configured to be opened, and the air motor switching mechanism includes an air passage switching spool disposed inside the machine body and a returning spring disposed on the rear side of the spool. and a spool push member that moves with the oil piston shaft.In normal conditions, the spool is advanced by the returning spring to communicate the air passage of the spool with the normal rotation side passage of the air motor, and the oil An air nutter characterized in that, when the piston is retracted, the spool is retracted by the pusher member so that the air passage of the spool is communicated with the reverse side passage of the air motor.