摘要:
To drive an oscillator always at a stable and constant oscillation even if frequency and amplitude of a power supply voltage differ depending on a delivery destination of the oscillator, an oscillator drive control device (10), which generates a predetermined switching pattern by operating a switching element, and supplies an oscillation generation unit (7) of the oscillator with drive electric power for generating predetermined oscillation frequency and amplitude according to the switching pattern, includes: a voltage detection circuit (11) for detecting a power supply voltage unique to a delivery destination of the oscillator; a memory circuit (12) storing, in advance, a basic switching pattern adapted to an arbitrarily set reference voltage, and used for driving the oscillation generation unit (7) at proper oscillation frequency and amplitude; and an arithmetic processing circuit (13) for calculating a ratio of the detected voltage unique to the delivery destination detected by the voltage detection circuit (11) to the reference voltage, and calculating, based on the ratio, a switching pattern substantially the same as the basic switching pattern under an environment of the power supply voltage unique to the delivery destination.
摘要:
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.
摘要:
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.
摘要:
A retractable feeding rod is located in a guide cylinder. A workpiece retaining pipe is connected to a leading end of the guide cylinder which serves as a movable electrode and a feed-in passage for a workpiece positioned at an acute angle to the guide cylinder. It opens within the guide cylinder and a control surface is provided for appropriately regulating the advancing speed of the workpiece in an end or in the middle of a passage through which the workpiece is fed to the guide cylinder to prevent the guide cylinder from being damaged or worn by the workpiece that impacts the guide cylinder at a high speed.
摘要:
Provided is a projection bolt welding method, which involves welding a projection bolt to a steel sheet component by electric resistance welding. The projection bolt includes a shank, a circular enlarged diameter portion, and a welding projection including an initial fusion portion with a tapered portion and a main fusion portion. A ratio of a volume of the initial fusion portion to a volume of a portion of the steel sheet component having the same diameter as a diameter of the initial fusion portion is selected, or a ratio of a circular area of the initial fusion portion to a sheet thickness of the steel sheet component is selected.
摘要:
The present invention provides a pressure-medium oil comprising at least one of a hydrocarbon compound and an ether compound and having the following properties (1) to (4): (1) a kinematic viscosity as measured at 40° C. of 2 to 30 mm2/s; (2) a viscosity index of 110 or higher; (3) a density as measured at 15° C. of 0.86 g/cm3 or less; and (4) a pour point of −50° C. or lower. The pressure-medium oil does not solidify under an ultra-high pressure, for example, 1.5 GPa or higher, and has a low pour point and excellent compatibility with test samples and with the material of the apparatus employed in the test.
摘要:
Provided is a component detection device, which is installable on component processing means which performs a predetermined operation to a conductive component interposed between one conductive member and another conductive member, the component detection device comprising a detection circuit (41) for distinguishing between the conductive component and a conductive foreign matter interposed between the one conductive member and the another conductive member, the detection circuit (41) being electrically connected between the one conductive member and the another conductive member, wherein the detection circuit (41) comprises: a reference voltage generating circuit section (43) for generating a reference voltage based on an input voltage; a voltage comparing circuit section (44) for comparing between the reference voltage and a detection voltage input from a detection terminal; and a sensitivity adjusting circuit section (45) for adjusting the detection voltage so that, when the conductive component is interposed between the one conductive member and the another conductive member, the detection voltage is equal to or smaller than the reference voltage, and when the conductive foreign matter is interposed between the one conductive member and the another conductive member, the detection voltage is larger than the reference voltage.
摘要:
A device is provided in which a pressing electrode (19, 105) is advanced toward a steel plate component (48, 131) to press a welding projection (4) of a shaft-shaped component (1) against the steel plate component (48, 131), so that the shaft-shaped component (1) is electric-resistance-welded to the steel plate component (48, 131). Pressing force accumulating means (22, 128) for accumulating the pressing force of the pressing electrode (19, 105) is disposed between a pressing member (17, 106) and a pressed member (18, 121). Detection means (54, 113, 3) activated when the pressing member (17, 106) is located at a predetermined position is provided to apply welding current flowing to the electrode, and pressing force adjusting means (55, 123) for adjusting the activation position of the detection means (54, 113, 3) is provided.
摘要:
To drive an oscillator always at a stable and constant oscillation even if frequency and amplitude of a power supply voltage differ depending on a delivery destination of the oscillator, an oscillator drive control device (10), which generates a predetermined switching pattern by operating a switching element, and supplies an oscillation generation unit (7) of the oscillator with drive electric power for generating predetermined oscillation frequency and amplitude according to the switching pattern, includes: a voltage detection circuit (11) for detecting a power supply voltage unique to a delivery destination of the oscillator; a memory circuit (12) storing, in advance, a basic switching pattern adapted to an arbitrarily set reference voltage, and used for driving the oscillation generation unit (7) at proper oscillation frequency and amplitude; and an arithmetic processing circuit (13) for calculating a ratio of the detected voltage unique to the delivery destination detected by the voltage detection circuit (11) to the reference voltage, and calculating, based on the ratio, a switching pattern substantially the same as the basic switching pattern under an environment of the power supply voltage unique to the delivery destination.
摘要:
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.