Abstract: A calibration method for machine tools comprises: providing a workpiece on a machine tool; rotating the workpiece around a first rotation axis parallel to a main shaft of the machine tool and processing the workpiece by a first machining mode; measuring a first dimensional error of a shape of the workpiece along directions of first and second linear axes perpendicular to the first rotation axis; calculating a positional error of the first rotation axis according to the first dimensional error; rotating the workpiece around a second rotation axis perpendicular to the main shaft and processing the workpiece by a different second machining mode; measuring a second dimensional error of the shape of the workpiece along a direction of a third linear axis perpendicular to the second rotation axis; calculating a positional error of the second rotation axis according to the second dimensional error.

Abstract: A monitoring method and a monitoring system for a machine tool to machine a workpiece are provided. The monitoring method includes the following steps. First, a vibration signal of a spindle of the machine tool is detected. Next, a vibration feature value of the vibration signal is obtained. Whether the vibration feature value exceeds a threshold condition is determined, wherein the threshold condition is determined by a training model based on a predetermined surface quality of the workpiece. When the vibration feature value exceeds the threshold condition, a machining parameter of the machine tool is adjusted.

Abstract: A thermal compensation system for machine tools includes a thermal compensation-monitoring device and a cloud processing device. The thermal compensation-monitoring device receives a plurality of temperature signals of a workpiece and corresponding processing tolerance data to build or update a thermal compensation database. The cloud processing device provides a thermal compensation model, and applies the model with the characterized temperature signals and the tolerance data to generate a compensation value so as to decide whether or not to modify the model or to run a compensation is necessary.

Abstract: A machine tool diagnosis method is operated in conjunction with a machine tool diagnosis system, which uses a convolutional neural network (CNN) model to analyze machining signals to generate target information including processing results and diagnosis opinions, and graphically displays a machining path of a target machining object on a display interface according to the processing results, where the display interface will further display the diagnosis opinions corresponding to the machining path.

Abstract: A calibration method for machine tools comprises: providing a workpiece on a machine tool; rotating the workpiece around a first rotation axis parallel to a main shaft of the machine tool and processing the workpiece by a first machining mode; measuring a first dimensional error of a shape of the workpiece along directions of first and second linear axes perpendicular to the first rotation axis; calculating a positional error of the first rotation axis according to the first dimensional error; rotating the workpiece around a second rotation axis perpendicular to the main shaft and processing the workpiece by a different second machining mode; measuring a second dimensional error of the shape of the workpiece along a direction of a third linear axis perpendicular to the second rotation axis; calculating a positional error of the second rotation axis according to the second dimensional error.

Abstract: A thermal compensation system for machine tools includes a thermal compensation-monitoring device and a cloud processing device. The thermal compensation-monitoring device receives a plurality of temperature signals of a workpiece and corresponding processing tolerance data to build or update a thermal compensation database. The cloud processing device provides a thermal compensation model, and applies the model with the characterized temperature signals and the tolerance data to generate a compensation value so as to decide whether or not to modify the model or to run a compensation is necessary.

Abstract: A monitoring method and a monitoring system for a machine tool to machine a workpiece are provided. The monitoring method includes the following steps. First, a vibration signal of a spindle of the machine tool is detected. Next, a vibration feature value of the vibration signal is obtained. Whether the vibration feature value exceeds a threshold condition is determined, wherein the threshold condition is determined by a training model based on a predetermined surface quality of the workpiece. When the vibration feature value exceeds the threshold condition, a machining parameter of the machine tool is adjusted.

Abstract: Systems, methods, and non-transitory computer-readable media can identify a set of videos. One or more overlapping portions in the set of videos are automatically identified. A stitched media content item is automatically generated based on the one or more overlapping portions and at least a subset of the set of videos.

Abstract: Systems, methods, and non-transitory computer-readable media can identify a set of videos. One or more overlapping portions in the set of videos are automatically identified. A stitched media content item is automatically generated based on the one or more overlapping portions and at least a subset of the set of videos.

Abstract: A laser device for additive manufacturing and an operation method thereof are provided. The laser device has a laser generation unit, a spectroscopic unit, a control unit, and a lens assembly unit. A laser beam is split into two or more beams by disposing the spectroscopic unit and the lens assembly unit. Thus, a roughness of a process surface and a process time can be reduced.

Abstract: A laser device for additive manufacturing and an operation method thereof are provided. The laser device has a laser generation unit, a spectroscopic unit, a control unit, and a lens assembly unit. A laser beam is split into two or more beams by disposing the spectroscopic unit and the lens assembly unit. Thus, a roughness of a process surface and a process time can be reduced.

Abstract: Systems, methods, and non-transitory computer-readable media can identify a set of videos. One or more overlapping portions in the set of videos are automatically identified. A stitched media content item is automatically generated based on the one or more overlapping portions and at least a subset of the set of videos.

Abstract: A filtering plate and a method for making the same and a filtering device having the same are provided. The filtering plate includes: a plate body, integrally formed of metal as one piece; a plurality of holed units, each holed unit penetrating the plate body and including a big hole and a plurality of small holes communicated with the big hole, the small hole being formed by laser processing and having a first end communicated with the big hole and a second end, the first end being greater than the second end in cross-sectional area.

Abstract: The present invention provides a panoramic viewing system, which includes a panoramic reflection mirror, formed in an elliptical conical status, and the conical surface thereof is defined as a curved surface used for reflecting an ambient light source; and an image sensor, disposed at one side of the panoramic reflection mirror and used for receiving a light source from the panoramic reflection mirror so as to generate an image data; wherein the panoramic reflection mirror allows a panoramic image to be formed in a rectangular area when the panoramic image is projected by the panoramic reflection mirror to the image sensor. In addition, the present invention also discloses a method of panoramic viewing, a panoramic projecting system, a method of panoramic projecting and a panoramic image sensor.

Abstract: A dry-type cleaning machine includes a negative pressure unit, a first dust gathering unit having a first dust sucking passage communicated with the negative pressure unit, and a barrel body. The barrel body has a receiving space communicated with the first dust sucking passage, a feeding inlet for a material to be sieved, a discharging portion, a rotary assembly in the receiving space, and a sieve layer. The material to be sieved includes crushed aggregates and dirt. The sieve layer is between the rotary assembly and the first dust sucking passage. The rotary assembly is for stirring the material to be sieved. The feeding inlet, the first dust sucking passage and the receiving space form a negative pressure passage. The sieve layer allows the dirt to pass through and enter the first dust sucking passage. The crushed aggregates are discharged out of the receiving space.

Abstract: The present invention provides a panoramic viewing system, which includes a panoramic reflection mirror, formed in an elliptical conical status, and the conical surface thereof is defined as a curved surface used for reflecting an ambient light source; and an image sensor, disposed at one side of the panoramic reflection mirror and used for receiving a light source from the panoramic reflection mirror so as to generate an image data; wherein the panoramic reflection mirror allows a panoramic image to be formed in a rectangular area when the panoramic image is projected by the panoramic reflection mirror to the image sensor. In addition, the present invention also discloses a method of panoramic viewing, a panoramic projecting system, a method of panoramic projecting and a panoramic image sensor.

Abstract: A recycling machine includes a main frame, a sieve barrel, a pressing cylinder, an end disk, a propeller shaft, a cutting device and an output device. The sieve barrel has a receiving chamber and a plurality of sieving apertures. The pressing cylinder has a receiving space and a plurality of toothed pressing portions. The end disk has a plurality of extruding holes. The propeller shaft has a first helical blade, a buffering portion and a second helical blade. Thus, the reused materials are forced into and revolved in the sieve barrel by rotation of the first helical blade to proceed a first-stage dehydration process, and are compressed in the buffering space between the buffering portion and the receiving chamber to proceed a second-stage dehydration process so that the reused materials are dehydrated completely.

Abstract: A recycling machine includes a main frame, a sieve barrel, a pressing cylinder, an end disk, a propeller shaft, a cutting device and an output device. The sieve barrel has a receiving chamber and a plurality of sieving apertures. The pressing cylinder has a receiving space and a plurality of toothed pressing portions. The end disk has a plurality of extruding holes. The propeller shaft has a first helical blade, a buffering portion and a second helical blade. Thus, the reused materials are forced into and revolved in the sieve barrel by rotation of the first helical blade to proceed a first-stage dehydration process, and are compressed in the buffering space between the buffering portion and the receiving chamber to proceed a second-stage dehydration process so that the reused materials are dehydrated completely.