Kobe Steel, Ltd.

Mitsubishi Denki Kabushiki Kaisha

Kabushiki Kaisha Kobe Seiko Sho

Kobelco Construction Machinery Co., Ltd.

Toshihiko Nishimura

Masatoshi Hida

Takemasa Yamasaki

Tsutomu One

Kenji Sadahiro

Hyunseung Kim

Yoshiharu Nishida

Masayuki Shigeyoshi

Takeshi Koike

Masahiko Yomota

Toshiyuki Izumi

Toru Takahashi

Kazuhiro Iwasaki

Masafumi Ohkuma

Teruaki Matsunaga

Nobuyuki Otera

An arc-tracking welding method according to the present invention is an arc-tracking welding method in a consumable-electrode-type welding apparatus provided with a weaving function for swinging a torch in the welding direction, wherein a welding current and a welding voltage to be supplied to a consumable electrode include high-frequency components. A change in resistance value resulting from a fluctuation in electrode height is detected from the welding current and the welding voltage during welding. Then, a shift of a weld line is detected from information about the detected resistance value and both end positions of a weaving amplitude.

Arc-tracking welding method and arc-tracking welding apparatus

Provided is a setting assistance device capable of informing that which welding condition should be corrected with a value as the limit in order to achieve the target quality. In a setting assistance device () of a welding condition which is a condition in welding, an input receiving unit () accepts designation of the target quality in welding, and a welding condition information output unit () outputs an item of a welding condition to be corrected to achieve the target quality, and limit information indicating a limit of a value which can be taken by the item of the welding condition to achieve the target quality, in accordance with the acceptance of the designation of the target quality by the input receiving unit ().

Setting assistance device, setting assistance method, and program

A welding and processing condition setting system includes an input device, a display device, a control device, and a database. The input device receives a retrieving operation of at least processing condition information input by an operator. The control device is configured to extract a processing condition parameter of the processing condition information from at least one of master condition data and user condition data according to the retrieving operation, extract a welding condition parameter of welding condition information corresponding to the extracted processing condition parameter from at least one of the master condition data and the user condition data, and calculate an evaluation item which is a result obtained by evaluating at least one of a welding amount and a working efficiency in the extracted welding condition parameters. The display device displays at least one parameter of the welding condition parameters, and the evaluation item.

Welding and construction condition setting system, welding robot system, welding and construction condition setting method, and welding and construction condition setting program

In a setting assistance device for assisting setting of a welding condition, an input receiving unit receives a new welding condition that is specified, and a reliability output unit outputs a degree of appropriateness of the new welding condition relative to a plurality of well-tested welding conditions, which are welding conditions that have been used in the past and well-tested, in response to reception of the new welding condition by the input receiving unit.

Setting assistance device and setting assistance method

A controller includes a communication controller having a communication area and a normal control controller having a normal control area, and is provided in a vehicle. The controller stores an update program, which is transferred via an external communication mechanism from an external server to a vehicle, in the communication controller. If it is determined, based on manipulation of a key switch to a stop position, that updating can be performed, the controller transfers the update program stored in the communication controller to the normal control controller and performs rewriting. A program is thereby reliably rewritten within a short period of time to improve work efficiency.

Control means, in-vehicle program rewriting device equipped with same, and in-vehicle program rewriting method

When setting welding conditions of arc welding, an operator sets the shape of a material to be welded, the specifications of welding, and welding conditions using a teach pendant. An apparatus for supporting setting of welding conditions in multi-pass welding of the present invention automatically calculates the state of the bead layering cross-section including at least one of the number of bead layers, the number of passes, and the layering direction, and the state of the bead layering cross-section including at least one of the number of bead layers, the number of passes, and the layering direction, obtained by the calculation is displayed on a display section.

Apparatus for helping setting of welding conditions in multi-pass welding

A welding parameter derivation device of a welding machine having a torch and a weaving mechanism derives welding parameters in accordance with the cross-sectional shape of a weld portion of a new base metal. A database stores welding parameter data, and a welding parameter computation unit computes welding parameters for the shape of a groove or joint of a new base metal. Based on past welding parameter data for a shape similar to that of a groove or joint of a new base metal, and input data pertaining to the specifications of the welding machine, the computation unit derives welding parameter data for the new base metal, taking into account a parameter of the cross-sectional area of the weld portion formed on the new base metal, the bead height of the weld portion, the quantity of heat inputted to the new base metal, and a torch weaving parameter.

Welding condition derivation device

The purpose of the present invention is to have the angles of each of the drive shafts of the first articulated drive system infallibly reach the angle of the work completed position, while maintaining the rate of movement and position of the working parts of an articulated robot. If exception conditions are not satisfied, the drive shafts of first and second articulation drive systems are driven individually (S) on the basis of interpolated points calculated in step(S). After exception conditions are satisfied (Yes side of S), until the working parts reach the work completed position (No side of S), the angle of each of the drive shafts of the first articulated drive system required to vary each of the drive shafts of the first articulated drive system in a linear manner with the angle at the work completed position as a target is calculated (S), and the angle of each of the drive shafts of the second articulated drive system is calculated on the basis of the position of the working part at the interpolated point calculated in step(S) and the angle of each of the drive shafts of the first articulated drive system as calculated (S), and the drive shafts of the first and second articulated drive systems are driven according to said calculation results (S).

Control device, control method, and control program for articulated robot

In order to suppress fluctuations in specific components of posture angle in a target coordinate system while maintaining the position of the leading edge of the wrist, the velocity of movement of the leading edge of the wrist, and the permissible velocity of the shaft during velocity suppression, an articulated robot which moves while calculating the position in interpolated points on a teaching path, the posture and the angles in each axis is provided, wherein a judgment is made as to whether the velocity of the wrist shaft exceeds a permissible limit, and if the permissible limit is exceeded, a plurality of candidates for angle of the wrist shaft that maintain the velocity within permissible limits are calculated, and the candidate with the minimum fluctuation in the specific component of the posture angle of the weld line coordinate system is selected.

Control unit, control method, and control program of articulated robot

A robot route interpolation method for interpolation a polygonal route of a robot which is defined by the predetermined three or more points, wherein the acceleration at the time when a first velocity on the above polygonal route before a turning point is changed into a second velocity on the above polygonal route after the turning point is obtained based on the above first and second velocities so that, based on the above first velocity and the above acceleration, the above robot is moved toward the turning point at an uniform velocity of the first velocity and is also moved at an uniform acceleration in the direction of the above acceleration.

Route interpolation method for robot

A robot control system for sequentially controlling a set of industrial robots for coordinated cooperative operation in accordance with a single general control program. The robot control system comprises a single storage unit storing a single general control program comprising motion instructions for the set of industrial robots, a single reading/compiling unit for separately reading the motion instructions from the storage unit and extracting the motion instructions for each industrial robot, and a plurality of driving units respectively driving the corresponding industrial robots in accordance with the motion instructions. The single general control program facilitates sequentially coordinating motion instructions for controlling the set of industrial robots so that the industrial robots will not interfere each other during the cooperative operation, finding errors in the instructions, and modifying the general control program to cope with changes in the process controlled by the robot control system.

Robot control system for controlling a set of industrial robots for

A d.c. motor unit with a rotational speed detector comprising a d.c. motor (1) having an output end and an idle end, and a rotational speed detector (14) water-tightly attached to the motor output end. The d.c. motor (1) comprises a motor frame (2) including an output end and an idle end, a mounting bracket (9) attached to the output end of the motor frame (2) and a rotary shaft (4) having an idle end rotatably supported by the motor frame (2) and an output end rotatably supported by and extending outwardly through the mounting bracket (9). The rotational speed detector (14) comprises a rotary portion mounted on the output end of the rotary shaft (4) and a stationary portion mounted to the mounting bracket at the output end of the motor frame (2). The rotational speed detector (14) comprises a substantially elastic permanent magnet plate (20) for generating a magnetic flux (.phi.) extending through a closed magnetic circuit including contact surfaces which are in pressure contact with the permanent magnet plate (20).

DC motor unit with a rotational speed detector

A communication system includes a device connected to a line through a hybrid coil and performing the transmission/reception of data and voice from and/to an opposite device. A switching relay of a voice transmission/voice reception in the device is controlled by a control data from the opposite device. The control data is sent out a plurality of times and after detection in a data detecting portion, a continuous transmission check is made in a continuous transmission checking portion. In the device, a connection of data detecting portion and the line and a connection of a microphone and the line are alternately disconnected by a relay, so that a detection of data is made only when the transmission of voice is interrupted. The disconnecting relay is driven in response to a pulse of a predetermined duty ratio. If and when the first data is detected in the data detecting portion, a monostable multivibrator is triggered so that the disconnecting relay is maintained in condition that the detecting portion and the line are connected in response to the triggered output.

Growing community of inventors

Kobe, Japan

Toshihiko Nishimura