Abstract: A casting shakeout apparatus comprises: a first unit for vibrating a supporting member on which a casting is placed and a second unit for applying impact or vibration to the casting, wherein the second unit can move between two positions, one of which is an evacuation position for allowing the casting to be loaded and unloaded and a work position for applying impact or vibration.

Abstract: A shaft-like parts feeding apparatus is disclosed, which includes a parts feeder (6) for delivering shaft-like parts (1), and a feed path extending from the parts feeder (6) to a point short of a feed rod (21), wherein a shaft-like part held by a holding head (1) of the feed rod (20) is inserted into a receiving hole (35) in an electrode (22). An excessively long parts detecting means which detects and removes excessively long parts (1A) longer than normal length is disposed in the parts feeder (6) or in the feed path, and the spacing between the receiving hole (35) and the holding head (20) with the feed rod (20) having stopped at a predetermined position after advancing, is set to an excessively short parts expelling spacing (L) which prevents excessively short parts (1C) shorter than normal length from reaching the receiving hole (35). Shaft-like parts of abnormal length are removed in the feed path extending from the parts feeder to the electrode by a system having a cooperative feature, i.e.

Abstract: A welding device (66) in which a movable electrode (6) is attached to moving drive means (68), the movable electrode (6) and a fixed electrode (8) forming a pair, and a part feeding device (82, 8) for feeding a part (10) to a target position by a feeding rod (2, 87) moving forward and backward are integrated through a coupling member (79, 91, 90, 94), so that an end position of the feeding rod (2, 87) moved forward and an end portion of the movable electrode 6 are in a predetermined relative positional relation. Therefore, it is possible to precisely obtain the relative position between the electrode of the welding device and an end portion of the feeding rod of the part feeding device moved forward.

Abstract: In an electrode for projection welding, an end cover (10) of metal having a through hole (19) is attached to the end of a main body (6) of metal having a cylindrical shape, a guide sleeve (12) of insulation material is disposed in the main body (6), the end of the guide sleeve (12) being formed with a receiving hole (18) for a part (2) in a state in which the receiving hole (18) communicates with the through hole (19) in the end cover (10), and a cooling passage (32) for fluid which cools the guide sleeve (12) is formed.

Abstract: A casting shakeout apparatus comprises: a first unit for vibrating a supporting member on which a casting is placed and a second unit for applying impact or vibration to the casting, wherein the second unit can move between two positions, one of which is an evacuation position for allowing the casting to be loaded and unloaded and a work position for applying impact or vibration.

Abstract: A method of welding a shaft-like part to a stack of steel sheets is disclosed in which the saft-like part is composed of a stem portion (2), a flange (3) integrally formed on the stem portion (2), and a projection (4) disposed at the center of the flange (3) and smaller in diameter than the flange (3). The method comprises the steps of inserting the shaft-like part (1) at its stem portion (2) into a holding hole (8) in a movable electrode (6), stacking a plurality of steel sheets (10 and 11) so as to keep the stack in contact with a fixed electrode (12), advancing the movable electrode (6) to press the projection (4) against the steel sheet (10) so as to reduce the thickness of at least the steel sheet (10) pressed by the projection (4), and passing a welding current between the two electrodes (6 and 12) so that the welding of the shaft-like part (1) and the integration of a plurality of steel sheets (10 and 11) are reliably achieved.

Abstract: An apparatus for conveying parts for use with parts with projections the protruding part of which is formed on either the upper side or the lower side as seen in the direction of height, has a regulating member (17) comprising a regulating portion of a width for preventing passage of the protruding part (11) of the part (10) and a non regulating portion (19) of a width allowing passage of the protruding part (11), to prevent passage of a part placed upside down in the case where such part is transferred.

Abstract: In an electrode for projection welding, an end cover (10) of metal having a through hole (19) is attached to the end of a main body (6) of metal having a cylindrical shape, a guide sleeve (12) of insulation material is disposed in the main body (6), the end of the guide sleeve (12) being formed with a receiving hole (18) for a part (2) in a state in which the receiving hole (18) communicates with the through hole (19) in the end cover (10), and a cooling passage (32) for fluid which cools the guide sleeve (12) is formed.

Abstract: A method of automatically feeding a part (4) having a through-hole to an intended place comprises the steps: disposing a feed rod (6) capable of advancing toward an intended place to which the part (4) is to be fed, said feed rod (6) consisting of a slide rod (16) of larger diameter and a guide rod (17) of smaller diameter, said guide rod (17) retractably projecting beyond the front end of the slide rod (16); provisionally holding the part (4) in a predetermined position on the advance/retraction axis of the feed rod (6); advancing the feed rod (6) to cause the guide rod (17) to pierce through the though-hole (10) in the part (4) so as to feed the part (4) to said intended place; and detecting, when relative displacement of the guide rod (17) with respect to the slide rod (16) occurs during the advance of the feed rod (6), such relative displacement and issuing a signal.

Abstract: One electrode 6 is provided with a recess 16 for receiving and holding a cap 13 and the other electrode 8 is provided with a recess 36 for receiving and holding a nut 10. The thus held cap 13 and nut 10 are pressed against each other by the advance of the electrode 6 and have an electric current passed therethrough, whereby both are welded. Further, to feed parts to the recesses 16 and 36 of both electrodes, there are installed a cap feeding mechanism 19 and a nut feeding mechanism 38 that perform square motions, respectively having feed members 18 and 37 adapted to hold the cap 13 and nut 10 therein.

Abstract: This invention relates to a device for welding a flange (3) of a part (1) having a shaft (2) and the flange (3) to a steel plate (44). The device comprises a supporting shaft (26), on the end of which a hole (37) for receiving the shaft (2) of the part (1) is formed, a supporting member (27) fitted on the axis of the supporting shaft (26) in a rotary manner, a supporting pipe (33) fitted into the supporting member (27) and having a electrode wire (36) inside, and driving mechanisms (40, 41, 42). In this device, the electrode wire (36) is directed so as to face the flange (3) of the part (1), whose shaft (2) has been received in the receiving hole (37). To achieve this arrangement, the head (34) of the tip of the supporting pipe (33) is positioned near the opening of the receiving hole (37) on the end of the supporting shaft (26), wherein the tip of the electrode wire (36) moves around the flange (3) as the supporting member (27) rotates.

Abstract: A welding method and a welding system for a projection bolt are provided. The disclosure comprises a stationary welding machine (5) having supporting arms (8, 9), each of which is provided with a movable electrode (10) and a fixed electrode (11) and either of the electrodes has a receiving hole (13) formed thereon for receiving the shank (2) of the projection bolt (1), wherein a projection bolt feed apparatus (14) is mounted on the stationary welding machine (5). According to the disclosure, the projection bolt (1) is stopped in the position where the shank (2) of the bolt (1) is coaxial with the receiving hole (13), then, the shank (2) is inserted into the receiving hole (13). A robot apparatus (33) brings a work (37) in between both the electrodes, where the welding operation of welding the projection bolt (1) to the work (37) is completed.

Abstract: An apparatus for conveying parts for use with parts with projections the protruding part of which is formed on either the upper side or the lower side as seen in the direction of height, has a regulating member (17) comprising a regulating portion of a width for preventing passage of the protruding part (11) of the part (10) and a non regulating portion (19) of a width allowing passage of the protruding part (11), to prevent passage of a part placed upside down in the case where such part is transferred.

Abstract: A projection bolt feed unit (14) is mounted on a welding frame (5) which is made to move by a robot system (1), and on either one of two electrodes (6, 7) installed on the welding frame (5) is formed a receiving hole (9) in which to insert a shaft (11). The projection bolt (10) held in said unit (14) stops at the position where its shaft (11) is coxial with the receiving hole (9), and then the shaft (11) is inserted into the receiving hole (9). After that, the welding frame (5) reaches the work (33) on standby, to weld the projection bolt (10) to the work (33).

Abstract: A casting 31 is fixed to a support member 23, and the casting 31 is hit by a hammer 43 while vibrating the support member, so that vibrations of different properties are applied to the casting to shake out the sand.

Abstract: This invention relates to a device for welding a flange (3) of a part (1) having a shaft (2) and the flange (3) to a steel plate (44). The device comprises a supporting shaft (26), on the end of which a hole (37) for receiving the shaft (2) of the part (1) is formed, a supporting member (27) fitted on the axis of the supporting shaft (26) in a rotary manner, a supporting pipe (33) fitted into the supporting member (27) and having a electrode wire (36) inside, and driving mechanisms (40, 41, 42). In this device, the electrode wire (36) is directed so as to face the flange (3) of the part (1), whose shaft (2) has been received in the receiving hole (37). To achieve this arrangement, the head (34) of the tip of the supporting pipe (33) is positioned near the opening of the receiving hole (37) on the end of the supporting shaft (26), wherein the tip of the electrode wire (36) moves around the flange (3) as the supporting member (27) rotates.

Abstract: A part supply device comprises a robot device, a part supply unit installed onto a head member of the robot device, a reciprocating supply rod arranged in the part supply unit, a holding means for holding a part arranged at a front end of the supply rod, and a part supply passage extending from a part feeder and exits near by the front end of the supply rod.

Abstract: An apparatus for conveying parts for use with parts with projections the protruding part of which is formed on either the upper side or the lower side as seen in the direction of height, has a regulating member (17) comprising a regulating portion of a width for preventing passage of the protruding part (11) of the part (10) and a non regulating portion (19) of a width allowing passage of the protruding part (11), to prevent passage of a part placed upside down in the case where such part is transferred.

Abstract: A welding method and a welding system for a projection bolt are provided. The disclosure comprises a stationary welding machine (5) having supporting arms (8, 9), each of which is provided with a movable electrode (10) and a fixed electrode (11) and either of the electrodes has a receiving hole (13) formed thereon for receiving the shank (2) of the projection bolt (1), wherein a projection bolt feed apparatus (14) is mounted on the stationary welding machine (5). According to the disclosure, the projection bolt (1) is stopped in the position where the shank (2) of the bolt (1) is coaxial with the receiving hole (13), then, the shank (2) is inserted into the receiving hole (13). A robot apparatus (33) brings a work (37) in between both the electrodes, where the welding operation of welding the projection bolt (1) to the work (37) is completed.

Abstract: A method of automatically feeding a part (4) having a through-hole to an intended place comprises the steps: disposing a feed rod (6) capable of advancing toward an intended place to which the part (4) is to be fed, said feed rod (6) consisting of a slide rod (16) of larger diameter and a guide rod (17) of smaller diameter, said guide rod (17) retractably projecting beyond the front end of the slide rod (16); provisionally holding the part (4) in a predetermined position on the advance/retraction axis of the feed rod (6); advancing the feed rod (6) to cause the guide rod (17) to pierce through the though-hole (10) in the part (4) so as to feed the part (4) to said intended place; and detecting, when relative displacement of the guide rod (17) with respect to the slide rod (16) occurs during the advance of the feed rod (6), such relative displacement and issuing a signal.