Abstract: A joint of an industrial robot that includes attaching part (23) having positioning member (22) embedded in one or both of two relatively rotating members, and guide (24) through which positioning member (22) projectably slides. Meanwhile, the side of the positioning member is provided thereon with a reservoir groove for a lubricant and a projection position marker for indicating a given projection length. This makeup provides an inexpensive, highly accurate, and extremely trouble-saving origin adjusting device.

Abstract: A positioner includes a housing, a table, a drive portion, a cylinder, a first winder, and a first cord. The cylinder includes a first opening at the rotation center of the table, and a second opening opposite and connected to the first opening. The first winder is disposed outside the second opening of the cylinder. The first cord includes a first lead-out portion and a first wound portion. The first lead-out portion enters the second opening, passes through the cylinder, and is led out from the table. The first wound portion is wound around the first winder according to the rotation of the table. Thus, the positioner can increase the number of air tubes or wires led out onto the table without increasing its size.

Abstract: An industrial robot has a base for installation, a first arm, a second arm, a third arm, a wire feeder, a welding torch, and a torch cable. The first arm rotates with respect to the base. The second arm pivots with respect to the first arm. The third arm pivots with respect to the second arm. The torch cable is coupled to the wire feeder and feeds a welding wire to a welding torch. The wire feeder is provided to the second arm and is rotatable around a rotation axis.

Abstract: A positioner includes a housing, a table, a drive portion, a cylinder, a first winder, and a first cord. The cylinder includes a first opening at the rotation center of the table, and a second opening opposite and connected to the first opening. The first winder is disposed outside the second opening of the cylinder. The first cord includes a first lead-out portion and a first wound portion. The first lead-out portion enters the second opening, passes through the cylinder, and is led out from the table. The first wound portion is wound around the first winder according to the rotation of the table. Thus, the positioner can increase the number of air tubes or wires led out onto the table without increasing its size.

Abstract: The invention provides a waterproof and dustproof structure of a joint portion of an industrial robot which is inexpensive and does not adversely affect a motion performance of a robot. Accordingly, in a manipulator type robot which has a cable passing hole provided in a part of an outer periphery of a manipulator, and is provided with a cable wired to an inner side and an outer side of the manipulator through the cable passing hole, a mold guide surrounding an outer periphery of one or a plurality of conducting wire passing through an inner portion is provided near the cable passing hole, an inner side of the mold guide is mold treated by a resin filling, and a sealing material is provided in an outer side of the mold guide.

Abstract: An industrial robot includes a first member, a positioning member arranged to be attached to the first member, a second member arranged to rotate relative to the first member, and a first joint for coupling the first member with the second member. The second member has a contact point arranged to contact the positioning member. An indication for requesting to enable the positioning member to contact the contact point is displayed. The second member rotates at the first joint relatively to the first member while the positioning member can contact the contact point. It is detected whether or not the contact point of the second member contacts the positioning member. A position of the second member is stored as an origin when it is detected that the contact point of the second member contacts the positioning member. This method prevents a possible failure of the attaching of the positioning member, and decreases a work load on an operator.

Abstract: The invention provides a waterproof and dustproof structure of a joint portion of an industrial robot which is inexpensive and does not adversely affect a motion performance of a robot. Accordingly, in a manipulator type robot which has a cable passing hole provided in a part of an outer periphery of a manipulator, and is provided with a cable wired to an inner side and an outer side of the manipulator through the cable passing hole, a mold guide surrounding an outer periphery of one or a plurality of conducting wire passing through an inner portion is provided near the cable passing hole, an inner side of the mold guide is mold treated by a resin filling, and a sealing material is provided in an outer side of the mold guide.

Abstract: In a manipulator-type robot of the present invention, a manipulator base contains a connection case for making cable connections to an external device. In the connection case, a signal-line connecting section for external connection is disposed on a predetermined signal line of a cable that is routed through the inside of the manipulator. The connection case contains, other than the aforementioned signal-line connecting section for making connections to the outside, an additional signal-line connecting section.

Abstract: A joint of an industrial robot that includes attaching part (23) having positioning member (22) embedded in one or both of two relatively rotating members, and guide (24) through which positioning member (22) projectably slides. Meanwhile, the side of the positioning member is provided thereon with a reservoir groove for a lubricant and a projection position marker for indicating a given projection length. This makeup provides an inexpensive, highly accurate, and extremely trouble-saving origin adjusting device.

Abstract: An industrial robot has a base for installation, a first arm, a second arm, a third arm, a wire feeder, a welding torch, and a torch cable. The first arm rotates with respect to the base. The second arm pivots with respect to the first arm. The third arm pivots with respect to the second arm. The torch cable is coupled to the wire feeder and feeds a welding wire to a welding torch. The wire feeder is provided to the second arm and is rotatable around a rotation axis.

Abstract: According to the manipulator-type robot of the present invention, a manipulator base contains a connection case for making cable connection to an external device. In the connection case, a signal-line connecting section for external connection is disposed on a predetermined signal line of a cable that is routed through the inside of the manipulator. Besides, the connection case contains, other than the aforementioned signal-line connecting section for making connection to outside, an additional signal-line connecting section.

Abstract: An industrial robot includes a first member, a positioning member arranged to be attached to the first member, a second member arranged to rotate relatively to the first member, and a first joint for coupling the first member with the second member. The second member has a contact point arranged to contact the positioning member. An indication for requesting to enabling the positioning member to contact the contact point is displayed. The second member rotates at the first joint relatively to the first member while the positioning member can contact the contact point. It is detected whether or not the contact point of the second member contacts the positioning member. A position of the second member is stored as an origin when it is detected that the contact point of the second member contacts the positioning member. This method prevents a possible failure of the attaching of the positioning member, and decreases a work load on an operator.

Abstract: The industrial robot has cables routed, through cable-passing holes (4a, 4b) formed in a side of an arm, between the outside and the inside of the arm. The cables contain mold guide (7) disposed inside cable-passing holes (4a, 4b); cable bundle (6) that passes through the inside of mold guide (7); and filler resin (8) applied to the inside of mold guide (7). The inside of mold guide (7) is filled with filler resin (8), so that cable bundle (6) is held in place.

Abstract: In origin adjustment between two members which rotate relatively at a joint of an industrial robot, an origin adjustment apparatus is provided which is inexpensive and highly accurate and which requires extremely few man hours. In addition, an origin adjustment apparatus is provided which is so small in size as to be easily used even on a distal end shaft of a wrist of the robot and which requires no special signal line for origin adjustment. A mount member 23 where a positioning member 22 is embedded and a guide portion 24 along which the positioning member 22 slides in such a manner as to protrude are provided on either one or both of the two members which rotate relatively.

Abstract: A manipulator includes a first arm having a first reduction gear unit built therein, a second arm fitted through the first arm and having a second reduction gear unit built therein, and a third arm fitted through the second arm and having a third reduction gear unit built therein. To avoid any possible interference between, for example, a welding torch, and a portion of the manipulator during operation of the manipulator, the drive axis of the third reduction gear unit is spaced apart a distance from a drive axis of the second reduction gear unit.

Abstract: An industrial robot includes a manipulator, a sensor which is provided on the manipulator, and a power source for supplying electric power to the sensor. A reference potential point is provided between the sensor and the power source.