Abstract: The present invention relates to a method for splitting circles, and the method is mainly applied to a wafer of semiconductors. A plurality of splitting blades are disposed above the wafer, and conditions and steps are set for switching the plurality of splitting blades based on a safe distance value set at an outer edge of a wafer or a safe distance value set at an inner edge of a metal ring. Accordingly, the plurality of splitting blades are prevented from cutting an outer frame during splitting and failing to complete actions of splitting wafers. The method has an advantage of efficiency of enhancing a production capacity yield rate.

Abstract: The present invention relates to a laser beam splitting and angle adjusting device. The device comprises a design of a multibeam module disposed between a plurality of laser units and a refractor to allow light beams emitted out from the plurality of laser units being modulated by the multibeam module so as to perform scan photolithography on photomask patterns. Different cutting purposes can be achieved through adjusting an arrangement of light beams in order to accomplish effects including deepening depths of cutting, and adjusting or controlling a size of groove widths of groove cutting, and so on.

Abstract: The present invention relates to a laser cutting method and apparatus thereof. The method comprises the following steps of fixing a substrate to be cut on a base, processing a first alignment procedure via an image sensor, forming a first cutting channel on a first surface of the substrate by cutting the first surface via laser beams, flipping over the substrate to be cut and fixing the substrate on the base, processing a second alignment procedure via the image sensor, and forming a second cutting channel on a second surface of the substrate by cutting the second surface via laser beams. The method can achieve improvement to laser cutting quality and effectiveness of enhancing production.

Abstract: The present invention relates to an improved laser structure comprising a laser generation module and an optical component. The laser generation module outputs laser beams to the optical component. A composite substrate to be cut comprises at least two board layers of different materials, and an upper surface of each of the at least two board layers is a cutting starting point of the each of the at least two board layers. The optical component is used to transform the laser beams to laser beams having at least two focal depths so as to be respectively focused on the upper surface of the each of the at least two board layers mentioned above, and to achieve effect of enhancing cutting efficiency of the composite substrate.

Abstract: An oil suction pump has an air outlet normally closed by a valve controlled via a compression spring, and the valve may be pushed backward by flowing air to open the air outlet. Therefore, the oil suction pump may be connected to an air compressor or to a manual air pump to obtain flowing air to push backward the valve and thereby open the air outlet and vacuumize a container connected to the oil suction pump for sucking oil into the container. A user may freely select to operate the oil suction pump via the air compressor or the manual air pump depending on actual need.

Abstract: A spring clamp has an elastically operable locating mechanism provided between two handles of the spring clamp, so that the two handles may instantaneously enter into a firmly braked position when the spring clamp clamps work pieces thereto, and immediately released from the braked position when a push button of the locating mechanism is pushed. The spring clamp with the elastically operable locating mechanism is more convenient for use without the risk of unexpectedly loosening from work pieces clamped thereto.

Abstract: A clamping device has a transmission mechanism that includes upper and lower oblique cavities respectively provided above and below a scaled rod of the clamping device; a steel ball and a compression spring are sequentially positioned in each of the two oblique cavities, so that the steel balls are normally pushed forward by the compression springs to firmly contact with an inner front surface of the cavities, as well as upper and lower sides of the scaled rod, allowing the scaled rod to move rearward only when an operating handle of the clamping device is pivotally pulled. The steel ball in the lower cavity may be pushed backward to separate from the lower side of the scaled rod when a push button located in front of the lower cavity is pushed, so that the scaled rod is allowed to move forward.

Abstract: A spring clamp has an elastically operable locating mechanism provided between two handles of the spring clamp, so that the two handles may instantaneously enter into a firmly braked position when the spring clamp clamps work pieces thereto, and immediately released from the braked position when a push button of the locating mechanism is pushed. The spring clamp with the elastically operable locating mechanism is more convenient for use without the risk of unexpectedly loosening from work pieces clamped thereto.

Abstract: A clamping device has a transmission mechanism that includes upper and lower oblique cavities respectively provided above and below a scaled rod of the clamping device; a steel ball and a compression spring are sequentially positioned in each of the two oblique cavities, so that the steel balls are normally pushed forward by the compression springs to firmly contact with an inner front surface of the cavities, as well as upper and lower sides of the scaled rod, allowing the scaled rod to move rearward only when an operating handle of the clamping device is pivotally pulled. The steel ball in the lower cavity may be pushed backward to separate from the lower side of the scaled rod when a push button located in front of the lower cavity is pushed, so that the scaled rod is allowed to move forward.

Abstract: An oil suction pump includes a push switch, a shaft vertically located below the push switch, and a float arm horizontally located below the shaft. A hooked lower end of the shaft is adapted to detachably engage with a hooked first end of the float arm and thereby holds the shaft in a fixed position when the push switch is depressed. A second end of the float arm is pivotally connected to a float that ascends when the oil sucked into a container connected to the oil suction pump reaches a predetermined level and thereby causes the first end to descend and disengage from the hooked lower end of the shaft, allowing the latter to move upward into an original position and automatically close an air inlet valve of the oil suction pump.

Abstract: A magnetic tool rack includes a magnet container that is internally divided into several compartments for separately holding small-size intense magnets therein and has two covers attached to upper and lower sides thereof, giving the whole rack an integral appearance. The magnetic tool rack may be mounted to a wall via brackets fixed to the magnet container at predetermined positions for magnetically holding different hand tools. The magnet container is made of a plastic material through integral injection molding to show one or more colors, and designs and patterns may be printed on a front side of the magnet container to create changes in the appearance of the rack.

Abstract: An oil suction pump includes a push switch, a shaft vertically located below the push switch, and a float arm horizontally located below the shaft. A hooked lower end of the shaft is adapted to detachably engage with a hooked first end of the float arm and thereby holds the shaft in a fixed position when the push switch is depressed. A second end of the float arm is pivotally connected to a float that ascends when the oil sucked into a container connected to the oil suction pump reaches a predetermined level and thereby causes the first end to descend and disengage from the hooked lower end of the shaft, allowing the latter to move upward into an original position and automatically close an air inlet valve of the oil suction pump.

Abstract: A trigger structure for spray gun includes horizontally and rearward extended upper and lower driving shaft adapted to movably engage with upper and lower channels, respectively, formed on a front handle of the spray gun when the trigger structure is assembled to the spray gun. The lower driving shaft forms a supporting point of the trigger structure on the spray gun and defines a suitable travel for the trigger structure, so that a user's finger operating the trigger structure would not contact with a front projection on the front handle when the trigger structure is moved to a rear dead point of its travel.

Abstract: A plastic pipe cutter. The cutter includes a front recess for clamping a workpeice, a front chamber, a rear chamber in communication with the front chamber, a bar shaped cutting device including a front blade, a rear head, and a central shank extended through the front chamber and the rear chamber. A first assembly in the front chamber includes a stop plate having a hole with the shank passed therethrough. An activation member having a hole larger than the diameter of the shank with the shank passed therethrough. A first resilient member is put on the shank and biased between the stop plate and the activation member. A pivotal trigger with the top thereof is engaged with the activation member. A second assembly in the rear chamber includes a pivotal engagement member and a second resilient member put on the shank and biased between the engagement member and the inner wall of the rear chamber. A third resilient member is put on the shank and biased between the enlarged head and the rear of the cutter.

Abstract: A plastic pipe cutter comprises a front recess for clamping a workpiece; a front chamber; a rear chamber in communication with the front chamber; a bar shaped cutting device including a front blade, a rear head, and a central shank extended through the front chamber and the rear chamber; a first assembly in the front chamber including a stop plate having a hole with the shank passed through, an activation member having a hole larger than the diameter of the shank with the shank passed through, a first elastic member put on the shank and biased between the stop plate and the activation member; a pivotal trigger with the top thereof engaged with activation member; a second assembly in the rear chamber including a pivotal engagement member and a second elastic member put on the shank and biased between the engagement member and the inner wall of the rear chamber, the engagement member having a hole larger than the diameter of the shank with the shank passed through and an external portion, the edges of the hole

Abstract: A hand blind riveter having an oil-pressure actuator to change an improve the originally labor-consuming operation thereof to an effort-saving and highly efficient operation by transmitting working power through oil pressure produced by the oil-pressure actuator.