Abstract: A spindle device includes a shaft housing, a spindle, a bearing liner, a damping adjustment piston and an actuating assembly. The spindle is disposed through the shaft housing. A bearing component surrounds a shaft. The bearing liner is sleeved on the bearing component and has a liner conical surface facing away from the bearing component. The liner conical surface is non-parallel to an axial direction. A damping chamber is formed between the shaft housing and the bearing liner to be filled with a damping fluid. The damping adjustment piston is slidably located within the damping chamber and has a piston conical surface facing the liner conical surface. The piston conical surface is non-parallel to the axial direction. The actuating assembly is to drive the damping adjustment piston to move relative to the bearing liner to adjust a gap formed between the piston conical surface and the liner conical surface.

Abstract: Video messaging systems and methods utilize a video messaging component based on a video messaging component container stored in a data store. The video messaging component container includes a collaborative video list that shows a list of video content generated by users of the video messaging component. Iterations of the video messaging component are rendered in host applications on client devices. As video content is generated by the iterations, the collaborative video list is updated to include the video content, and the iterations of the video messaging component are updated to reflect changes to the collaborative video list in real-time.

Abstract: Video messaging systems and methods utilize a video messaging component based on a video messaging component container stored in a data store. The video messaging component container includes a collaborative video list that shows a list of video content generated by users of the video messaging component. Iterations of the video messaging component are rendered in host applications on client devices. As video content is generated by the iterations, the collaborative video list is updated to include the video content, and the iterations of the video messaging component are updated to reflect changes to the collaborative video list in real-time.

Abstract: A porous aerostatic bearing includes a bearing seat and a plurality of porous plunger assemblies. The bearing seat is furnished with a plurality of accommodating holes. By locking the porous plunger assemblies individually into the corresponding accommodating holes, the porous aerostatic bearing with adjustable stiffness can thus be formed, difficulty in maintenance thereof can be lowered, and the entire service expense therefor can be substantially reduced.

Abstract: The present invention relates to an obstacle detection device, adapted for an autonomous mobile system, which comprises: a conducting wire, a first unit and a second unit. The first unit further comprises a first conducting part, electrically connected to an end of the conducting wire; and the second unit further comprises a second conducting part, electrically connected to another end of the conducting wire other than that connecting to the first conducting part. As an abnormality, such as the autonomous mobile system comes into contact with an obstacle, or misses a step, is happening and detected by the obstacle detection device, a reactive force will be generated to force the two conducting parts to contact with each other so as to enable an electrical conduction for issuing an electrical signal to the control unit of the autonomous mobile system and thus enabling the autonomous mobile system to react with respect to the abnormality.

Abstract: The present invention relates to an obstacle detection device, adapted for an autonomous mobile system, which comprises: a conducting wire, a first unit and a second unit. The first unit further comprises a first conducting part, electrically connected to an end of the conducting wire; and the second unit further comprises a second conducting part, electrically connected to another end of the conducting wire other than that connecting to the first conducting part. As an abnormality, such as the autonomous mobile system comes into contact with an obstacle, or misses a step, is happening and detected by the obstacle detection device, a reactive force will be generated to force the two conducting parts to contact with each other so as to enable an electrical conduction for issuing an electrical signal to the control unit of the autonomous mobile system and thus enabling the autonomous mobile system to react with respect to the abnormality.

Abstract: The present invention relates to an obstacle detection device, adapted for an autonomous mobile system, which comprises: a conducting wire, a first unit and a second unit. The first unit further comprises a first conducting part, electrically connected to an end of the conducting wire; and the second unit further comprises a second conducting part, electrically connected to another end of the conducting wire other than that connecting to the first conducting part. As an abnormality, such as the autonomous mobile system comes into contact with an obstacle, or misses a step, is happening and detected by the obstacle detection device, a reactive force will be generated to force the two conducting parts to contact with each other so as to enable an electrical conduction for issuing an electrical signal to the control unit of the autonomous mobile system and thus enabling the autonomous mobile system to react with respect to the abnormality.

Abstract: The present invention relates to an obstacle detection device, adapted for an autonomous mobile system, which comprises: a conducting wire, a first unit and a second unit. The first unit further comprises a first conducting part, electrically connected to an end of the conducting wire; and the second unit further comprises a second conducting part, electrically connected to another end of the conducting wire other than that connecting to the first conducting part. As an abnormality, such as the autonomous mobile system comes into contact with an obstacle, or misses a step, is happening and detected by the obstacle detection device, a reactive force will be generated to force the two conducting parts to contact with each other so as to enable an electrical conduction for issuing an electrical signal to the control unit of the autonomous mobile system and thus enabling the autonomous mobile system to react with respect to the abnormality.

Abstract: Disclosed is a micro-positioning flatbed comprising a bed; a first driving unit and a second driving unit of resilient construction; a piezo-electric element firmly coupling the first and the second driving units; and piezo-electric elements firmly received within the first and the second driving units, wherein the bed is formed with corresponding, extending guides, the first and the second driving units include opposing sides having configurations corresponding to configurations of the guides, and the first and the second driving units are aligned within the guides of the bed, whereby the piezo-electric elements expand or contract while being subjected to voltages to cause lateral expansion or contraction of the first and the second driving units in response to expansion or construction of the piezo-electric elements firmly received within the first and the second driving units, such that the piezo-electric elements firmly coupled to the first and the second driving units activate the first and the second dr

Abstract: A vertical/horizontal spindle head for machine tools having a main transmission shaft with a first bevel gear secured thereon, a lower rotatable housing having a bevel gear axle secured therein, an upper seat having a push/pull apparatus for axially moving the lower rotatable housing relative to the upper seat, a main shaft having a second bevel gear secured thereon, third and fourth bevel gears coaxially arranged on the bevel gear axle, and a curved coupling between the upper seat and the lower rotatable housing. Between the third and fourth bevel gears are springs to move the third bevel gear axially and maintain it in engagement with the first bevel gear. A slidable spline device is provided between the third bevel gear and the bevel gear axle. The slidable spline device is disengaged in a first position where the curved coupling is coupled and is engaged in a second position when the lower rotatable housing is pushed away from the upper seat by the push/pull apparatus and the curved coupling is uncoupled.

Abstract: A coolant through spindle device is disclosed, including a rotating joint member secured to the rear end of the spindle for conducting coolant into the spindle, the coolant being conducted through a separate coolant passage inside the spindle to the nozzles formed on a cutting tool to be sprayed out thereof so as to fully cool down and lubricate the cutting point thereof, increase machining precision and cutting rate, and prolong service life of the cutting tool. Moreover, by using a switching collar to provide separated coolant passage and pressurized air passage, no residual coolant can follow the pressurized air jet into the tapper hole of the spindle to contaminate the tapper hole.