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AssigneeYamaha Hatsudoki Kabushiki Kaisha
InventorsKenji Tsuri, Tomoyoshi Utsumi
Estimating the term…
The linear motor includes: a frame; a slider having an mounting portion to allow the suction nozzle to be coupled thereto, wherein the slider is support by the frame in a movable manner in an up and down direction; a plurality of permanent magnets fixed to the slider while being aligned in the up and down direction; a spring member installed between the frame and a region of the slider spaced from the fixation position of the permanent magnets in the up and down direction, to bias the slider upwardly; a coil supported by the frame in such a manner as to be opposed to the permanent magnets; and an encoder supported by the frame in side-by-side relation with the coil in the up and down direction and adapted to detect a movement of the slider. The encoder and the spring member are arranged side-by-side in a horizontal direction.
A linear motor for lifting and lowering a suction nozzle, comprising:
Dependencies are inferred from the claim text.
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From the US filing history. Foreign family members aren’t listed.
No references of this kind are recorded.
Pick-and-place heads or apparatus, e.g. with jaws: with orientation of the component while holding it; Drive mechanisms for gripping tools, e.g.…
For measuring, monitoring, testing, protecting or switching: devices for sensing speed or position, or actuated thereby
Synchronous motors; Motors moving step by step; Reluctance motors: of the permanent magnet type
Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical…:…
About 6 years 9 months of term left · ends 16 Jul 2033 (estimated)
1. Field of the Invention
The present invention relates to a suction nozzle lifting and lowering linear motor for lifting and lowering a suction nozzle capable of suction-holding an electronic component, and an electronic component mounting apparatus having the linear motor.
2. Description of the Background Art
FIG. 1 is a top plan view illustrating a schematic configuration of an electronic component mounting apparatus according to one embodiment of the present invention.
FIG. 2 is a side view of a head unit.
FIG. 3 is a front view of the head unit.
With reference to FIGS. 1 to 13, a suction nozzle lifting and lowering linear motor according to one embodiment of the present invention, and an electronic component mounting apparatus having the linear motor, will now be described in detail.
An electronic component mounting apparatus 1 illustrated in FIG. 1 includes a base 2 having a rectangular shape in plan view, a printed-wiring board conveyance section 3 provided a central region of the base 2 in a longitudinal direction of the base 2, a pair of component supply sections 4 provided, respectively, in opposite end regions of the base 2 in the longitudinal direction, and a component transfer section 5 provided above the base 2. In this specification, the longitudinal direction of the base 2 will be referred to as “Y-direction”. Further, a horizontal direction perpendicular to the Y-direction, i.e., a direction along with a printed-wiring board is conveyed by the printed-wiring board conveyance section 3 (a conveyance direction of a printed-wiring board), will be referred to as “X-direction”.
The printed-wiring board conveyance section 3 is composed of two conveyer devices 6 arranged side-by-side in the Y-direction. Each of the conveyer devices 6 is designed to convey a printed-wiring board 7 in the X-direction. In this embodiment, each of the component supply sections 4 is composed of a plurality of tape feeders 11.