摘要:
Apparatus (20) and a method for securing a clinch nut (24) to an AHSS sheet (26) as an assembly (22). In one embodiment, a parallel kinematic machine (PKM) (88) sequentially performs the operation, while another embodiment includes a nut ram assembly (112) that attaches clinch nuts (24) to the AHSS sheet (26), and a further embodiment includes a C frame (114) that supports the apparatus and is moved by a robot (130) to sequentially attach clinch nuts (24) to the AHSS sheet (26) at different locations. The attachment of the clinch nuts is performed in a light-safe manner.
摘要:
A method and apparatus (20) provide light-safe heating of advanced high strength steel metallic sheet(s) (28 and/or 30) for securement of metallic sheets by flow fasteners (31).
摘要:
Apparatus (20, 22) and a method for mechanically joining a steel sheet portion (28 or 32) of advanced high strength steel to a metallic sheet portion (30 or 34) is performed to a light-safe extent by a detector assembly (106) during the mechanical joining that may be clinching, clinch riveting, full-punch riveting or self-piercing riveting.
摘要:
A vehicle body assembly line (10) and method for assembling vehicle bodies utilizes electromagnetic gauging apparatus (44) to generate production gauge data of an assembly of formed sheet metal components, and an electrical controller (38) compares the production gauge data to design gauge data to detect any production deviation and is electrically connected to the assembly line to adjust the assembly of the formed sheet metal body components to correct any production deviation detected.
摘要:
A sheet metal washer system for cleaning metal blanks includes a washer cassette with an open bottom that is selectively mounted on a tank assembly, a drive motor assembly and a filter assembly. The washer cassette includes an inlet opening and an exit opening with upper and lower entry rollers having a first predetermined durometer positioned adjacent to the inlet opening and upper and lower exit rollers having a second predetermined durometer positioned adjacent the exit opening. Upper and lower manifolds for delivering cleaning fluid from the filter assembly to the interior of the washer cassette are positioned between the entry and exit rollers. The sheet metal blank is cleaned by the entry rollers and dried by the exit rollers, as it passes through the sheet metal washer. The washer cassette preferably includes a safety mechanism for locking the upper entry and exit rollers into a storage position when the washer system is not in use. The washer cassette preferably further includes at least one quick disconnect air and fluid connection plate to permit one-step removal of all air and fluid lines from the washer cartridge. An optional exit spray system for coating the sheet metal blanks after being cleaned may be integrated within the washer cassette.
摘要:
Method and system are provided for controllably driving a rotary drive of a rotary index table assembly utilizing a PLC which receives various sensor signals including a feedback signal from a resolver to generate a reference central signal which, in turn, is used by a positioning drive including an electric servomotor to drive the rotary drive. The positioning drive includes a servoamplifier and a microprocessor for generating commands for controlling the servoamplifier in response to the reference central signal. The PLC also controls a hydraulic control unit which controls the axial position of the index table relative to a base of the assembly.
摘要:
A rotary index table assembly including an annular positioning mechanism (22) that cooperates with an air bearing (30) to accurately position a rotary index table (14) on a base (12). The annular positioning mechanism (22) includes a base mounted crown gear (24), a table mounted crown gear (26) and a movable crown gear (28) that is moved out of engagement with the base and table mounted crown gears to permit the indexing rotation and that is thereafter moved into engagement with the base and table mounted crown gears to locate the table with respect to the base while the air bearing supports the table on the base to permit the accurate positioning. A rotary drive (18) of the table assembly is preferably constructed to include a double enveloping worm gear set (32) and a polygonal drive coupling (34) that are capable of transmitting relatively large torque to the table while still having a compact construction.
摘要:
The present invention teaches a method and apparatus for a single stroke kinematic system, having a required mid stroke dwell, which permits positioning of the mid stroke dwell with respect to both space and time. A four bar linkage mechanism is disclosed having a bottom stroke and a top stroke toggle thereby kinematically providing the acceleration ramps into and out of the bottom stroke and top stroke dwells. A cycloidal drive mechanism is provided to drive the four bar linkage and providing time/phase shifting of the cycloidal drive's mid cycle dwell.
摘要:
An apparatus for locating a reference target on a partially assembled structure such as an automobile body frame. The apparatus has a base support structure for rigid mounting to a floor member, a transfer platform is attached to the base structure so that the transfer platform has freedom of movement in a first horizontal direction; a horizontal slide assembly is attached to the transfer platform so that it has freedom of movement in a horizontal direction perpendicular to the first horizontal direction; and a vertical slide assembly is attached to the horizontal slide assembly and is movable therewith in a vertical direction. An acutator and a clamp bar are utilized to immobilize the transfer platform, and an actuator and a clamp plate are utilized to immobilize both the horizontal and vertical slide assemblies. A plurality of work tools or tool receiving recesses are attached to the vertical slide assembly so that the tool and recess can move toward and away from the automobile body frame.
摘要:
A punch stripper is formed with an axially aligned aperture extending therethrough so that the punch stripper can be installed on the shaft of a punch. The punch stripper includes a cylindrical housing with a plunger telescoped within an axially aligned bore. An array of spring elements are axially aligned within the cylindrical housing such that a biasing force is exerted on one end of the plunger. A cap is held in position by a snap ring at the end of the housing most remote from the plunger. The array of spring elements exert a biasing force on the cap. An elastomeric O-ring is positioned within the cap so that a frictional force can be developed between the punch stripper and a punch that passes therethrough.