A Piezoelectric Driven Flexible Adjustment Device for Injection Direction
A technology of injection direction and piezoelectric drive, applied in the direction of injection device, etc., can solve the problem that the response frequency of the two-dimensional motion platform is low, and the frequency characteristics of the piezoelectric injection device cannot be fully utilized.
Active Publication Date: 2015-07-29
JILIN UNIV
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Problems solved by technology
[0003] In order to solve the problem that the response frequency of the two-dimensional motion platform in the plane position control in the past spraying additive processing process is low and cannot fully utilize the frequency characteristics of the piezoelectric spraying device, a piezo-driven flexible spraying direction adjustment device is proposed
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[0011] refer to figure 1 and figure 2 , the piezoelectric-driven spray direction flexible adjustment device of the present invention is used to adjust the spray direction of the spray head 1, the spray head installation surface 21 formed by the elastic substrate 2 and the piezoelectric material sheet 3, the cantilever deformation area 22 and the installation support area 23 constitute. Wherein the geometric center of the elastic substrate 2 is arranged with a circular spray head installation hole 211, the spray head 1 passes through the installation hole 211 and is fixed in the middle of the piezo-electrically driven spray direction flexible adjustment device by the nut 4, around the spray head installation hole 211 The area where the material is not removed forms the nozzle installation surface 21. After the nozzle head 1 is installed, the central axis of the nozzle 1, that is, the injection direction, is parallel to the normal direction of the nozzle installation surface 2...
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The invention relates to a piezoelectrically-driven spraying direction flexible adjustment device. The piezoelectrically-driven spraying direction flexible adjustment device comprises a spray head installation surface (21), a cantilever deformation zone (22) and an installation supporting zone (23), wherein the spray head installation surface (21) is composed of an elastic sheet (2) and a sheet (3) made of piezoelectric materials, the sheet (3) made of the piezoelectric materials adhere to the surfaces of cantilevers in the cantilever deformation zone (22), the installation supporting zone (23) is fixed to a required position during operation, voltage is exerted on the portion between the two electrodes of each sheet (3) made of the piezoelectric materials, bending deformation happens to the cantilever deformation zone (22), the normal direction of the spray head installation surface (21) is changed under the combined action of the deformation of all the cantilevers, a spray head (1) is fixed to the spray head installation surface, the spraying direction of the spray head is the same as the normal direction of the spray head installation surface (21), the spraying direction can be controlled by adjusting the deformation of all the cantilevers, and thus the direction of the spray head (1) is changed. The piezoelectrically-driven spraying direction flexible adjustment device has the advantages that the response frequency is high, the structure is simple, machining is convenient, digital control is facilitated, and the control precision is high.
Description
technical field [0001] The invention relates to a precision drive device, in particular to a piezoelectric drive type flexible adjustment device for spraying direction. Background technique [0002] Liquid or powder injection is widely used in three-dimensional additive manufacturing and electronic product bonding and packaging equipment. In the past, the plane position of liquid injection was mainly realized by the movement of the two-dimensional mobile platform. This method is affected by the precision of the driving mechanism and the inertia of the mechanism. Response speed is limited, generally the highest response frequency that a stepper motor can achieve does not exceed 1kHz, while the operating frequency of a single-point piezoelectric injection device can reach 60kHz, so the current two-dimensional motion platform cannot fully exert its pressure. Capabilities of the electrospray device. Contents of the invention [0003] In order to solve the problem that the res...
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IPC IPC(8): B05B15/08B05B15/68
CPCB05B15/68
Inventor 吴越任露泉刘庆平王京春
Owner JILIN UNIV