Abstract: A gear manufacturing machine for which a machining tool detachably attached to a tool spindle is exchanged by means of an automatic tool changer, wherein the automatic tool changer is provided with: tool holding means for detachably holding a machining tool to be exchanged; moving means for moving the tool holding means in a direction parallel to the axial direction of the tool spindle; and rotating means for rotating the tool holding means.

Abstract: A part-holding device includes a holding portion configured to hold an object to be held and a main body configured to detachably connected to the holding portion. The main body has a first surface, a second surface, and a third surface oriented in respective differing directions, and the holding portion has a first abutting surface, a second abutting surface and a third abutting surface capable of abutting against the first surface, the second surface, and the third surface, respectively. The part-holding device further includes pressing means configured to press the holding portion to cause the first abutting surface to abut against the first surface and to cause the second abutting surface to abut against the second surface, and fixing means configured to cause the third abutting surface to abut against the third surface and to fix the holding portion to the main body.

Abstract: A part-holding device includes a holding portion configured to hold an object to be held and a main body configured to detachably connected to the holding portion. The main body has a first surface, a second surface, and a third surface oriented in respective differing directions, and the holding portion has a first abutting surface, a second abutting surface and a third abutting surface capable of abutting against the first surface, the second surface, and the third surface, respectively. The part-holding device further includes pressing means configured to press the holding portion to cause the first abutting surface to abut against the first surface and to cause the second abutting surface to abut against the second surface, and fixing means configured to cause the third abutting surface to abut against the third surface and to fix the holding portion to the main body.

Abstract: A gear manufacturing machine for which a machining tool detachably attached to a tool spindle is exchanged by means of an automatic tool changer, wherein the automatic tool changer is provided with: tool holding means for detachably holding a machining tool to be exchanged; moving means for moving the tool holding means in a direction parallel to the axial direction of the tool spindle; and rotating means for rotating the tool holding means.

Abstract: Provided is a tool tight-contact-state detector for a machine tool which is capable of accurately and stably detecting whether or not a tool or a tool holder having the tool attached thereto is mounted to a main spindle in tight contact therewith. While rotation of a main spindle (13) is stopped, hydraulic pressure is supplied from a hydraulic pressure supply unit (28) to a cylinder section (20) so as to bring a piston member (21) to into contact with a main spindle head (11) and the main spindle (13) against a biasing force from an O-ring (22). Air is thereby allowed to be supplied to air ejection holes (27a, 27b, 27c), which are formed in a forward end face (13a) of the main spindle (13), from the main spindle head (11) side through the piston member (21).

Abstract: Work line module comprises a plurality of machines (103-106) having a plurality of working functions and non-work facility (107, 108) such as a conveying machine can cooperate so as to produce a necessary amount even if the necessary amount is varied. A plurality of work machines (103-106) for mechanically working a workpiece (124) and non-work facility (107, 108) for processing the workpiece (124). One work machine (106) is a multifunction furnishing machine having a function of measuring the workpiece (124) in addition to a function of mechanically working the workpiece (124). A conveying machine (109) having robots (185-187) for conveying the workpiece (124) between the work machines (103-106), and between the work machines (103-106) and the non-work facility (107, 108).

Abstract: A measuring head is provided for an air micrometer which is capable of measuring an amount of eccentricity between a main spindle and a bush hole. A measuring head (41) includes a measuring-head body portion (42) and a measuring-head tip portion (43), in which: a first measurement air nozzle (51A) and a second measurement air nozzle (51B) are each formed in the measuring-head tip portion to extend in a radial direction of the measuring-head tip portion, and also formed to have an angle of 180 degrees with respect to each other in a circumferential direction of the measuring-head tip portion; individual measurement air supply passages corresponding to the respective measurement air nozzles are formed in the measuring-head body portion; and measurement air is supplied to the measurement air nozzles from the individual measurement air supply passages, respectively.

Abstract: The present invention aims to provide an air-micrometer calibration device capable of securely causing an axis of a measuring-head tip portion and an axis of a master hole to coincide with each other.

Abstract: Provided is a tool tight-contact-state detector for a machine tool which is capable of accurately and stably detecting whether or not a tool or a tool holder having the tool attached thereto is mounted to a main spindle in tight contact therewith. While rotation of a main spindle (13) is stopped, hydraulic pressure is supplied from a hydraulic pressure supply unit (28) to a cylinder section (20) so as to bring a piston member (21) to into contact with a main spindle head (11) and the main spindle (13) against a biasing force from an O-ring (22). Air is thereby allowed to be supplied to air ejection holes (27a, 27b, 27c), which are formed in a forward end face (13a) of the main spindle (13), from the main spindle head (11) side through the piston member (21).

Abstract: A production facility, which can produce a product efficiently while saving the space of the facility, is disclosed. The production facility comprises: a plurality of machine tools 31, 32, 33, 34 for machining a workpiece 11; a conveyor 16 for conveying the workpiece 11; and a controller 41 for controlling the machine tools 31, 32, 33, 34 and the conveyor 16. Each of the machine tools 31, 32, 33, 34 has a function of performing machining of its own process, machining of a preceding process, and machining of a succeeding process on the workpiece. The controller 41 controls the machine tools 31, 32, 33, 34 and the conveyor 16 so as to perform the machining of the respective processes continuously on the workpiece 11 in accordance with a status of machining of the workpiece 11 by the plurality of machine tools 31, 32, 33, 34.

Abstract: The present invention aims to provide a measuring head for an air micrometer which is capable of measuring an amount of eccentricity between a main spindle and a bush hole.

Abstract: The present invention aims to provide an air-micrometer calibration device capable of securely causing an axis of a measuring-head tip portion and an axis of a master hole to coincide with each other.

Abstract: Work line module comprises a plurality of machines (103-106) having a plurality of working functions and non-work facility (107, 108) such as a conveying machine can cooperate so as to produce a necessary amount even if the necessary amount is varied. A plurality of work machines (103-106) for mechanically working a workpiece (124) and non-work facility (107, 108) for processing the workpiece (124). One work machine (106) is a multifunction furnishing machine having a function of measuring the workpiece (124) in addition to a function of mechanically working the workpiece (124). A conveying machine (109) having robots (185-187) for conveying the workpiece (124) between the work machines(103-106), and between the work machines(103-106) and the non-work facility (107, 108).

Abstract: Provided are manufacturing facilities capable of manufacturing many kinds of products efficiently in a small lot without increasing their cost. The manufacturing facilities comprise working cells (21 and 22) having at least two machine tools (11 and 12) arranged for working a workpiece (W), a rinsing cell (23) having at least two rinsing devices (13) arranged for rinsing the workpiece worked, an inspecting cell (24) having at least two inspecting devices (14) arranged for inspecting leakage of the workpiece rinsed, and a robot arm (15) capable of gripping the workpiece and transferring the workpiece between the individual cells (21, 22, 23 and 24). The individual cells (21, 22, 23 and 24) are arranged around the robot arm (15).