42results about How to "Make sure it fits in place" patented technology

The invention relates to an oil-seal press-mounting clamp and a using method thereof. The clamp comprises a vertical outer ring which can be connected to an oil-seal edge of a bearing cap in a sleeving manner, and an inner pressing sleeve which is used for sealing and pressing to-be-pressed oil seal into the oil seal hole in the bearing cap, wherein the inner pressing sleeve is coaxially arranged in the outer ring and can slide up and down along the axial direction of the outer ring; opposite round holes are formed in the side wall of the outer ring, a cylindrical pin penetrates the round holes, and a strip-shaped key groove which can be penetrated by the cylindrical pin is formed in the inner pressing sleeve. According to the oil-seal press-mounting clamp, due to the outer ring and the inner pressing sleeve, the outer ring is connected to the oil-seal edge of the bearing cap in a sleeving manner to complete primary positioning, and the inner pressing sleeve and the outer ring are positioned by adopting the cylindrical pin, so that the inner pressing sleeve and the outer ring are always kept to be concentric and can only make relative movement along the axial direction, the oil seal is pressed in the direction concentric to the oil-seal edge when being pressed in, and vertical press mounting of the oil seal is guaranteed; the uniformity of tools for oil-seal pressing can be realized since positioning is performed at the side of the oil-seal edge of the bearing cap.

An assembly tool for a valve bridge assembly, comprising a base, a guide column matched with the middle through hole of the valve bridge, a positioning pin matched with the adjustment screw hole of the valve bridge, and a cross arm used to press the valve bridge during assembly The upper part of the pressure plate, a pair of studs and a pair of nuts. The lower end of the guide column, the lower end of the positioning pin and the lower ends of a pair of studs are respectively connected with the base; a pair of studs pass through the pressure plate, and a pair of nuts are respectively screwed with the upper ends of a pair of studs to be pressed and fixed during assembly platen. The invention also discloses an assembly method of the valve bridge assembly. The invention can realize the reliable positioning of the valve bridge, avoid the rotation and inclination of the valve bridge during assembly, make the assembly operation more convenient, and ensure that the valve top cover is assembled in place.

The invention provides an assembling mold which comprises a first sliding block, a second sliding block, a first ejector block, a second ejector block, a guide rod and a base, the guide rod is fixedly connected with the base, the first sliding block is in sliding connection with the guide rod, and the second sliding block is in sliding connection with the guide rod; a first positioning groove is formed in the end, close to the second ejector block, of the first ejector block, a second positioning groove is formed in the end, close to the first ejector block, of the second ejector block, the central axis of the first positioning groove and the central axis of the second positioning groove are located on the same straight line, a first hole flat position is arranged on the inner wall of the first positioning groove, and a second hole flat position is arranged on the inner wall of the second positioning groove. And the first hole flat position is parallel to the second hole flat position. The first hole flat position and the second hole flat position are in a mutually parallel state, in the splicing process, the first shaft flat position is matched with the first hole flat position, the second shaft flat position is matched with the second hole flat position, and it can be ensured that the first shaft flat position and the second shaft flat position are kept in a parallel state after splicing is completed.