50results about How to "Convenient welding positioning" patented technology

The invention relates to a shielding grounding spring, a connector employing the same, and a connector assembly. The shielding grounding spring comprises an annular body, and the annular body is provided with a grounding spring inner hole, wherein the grounding spring inner hole is used for the inserting of a housing of a corresponding adaptive connector from the front to the back. The annular body is provided with a plurality of spring pieces which are arranged along the peripheral direction at intervals, face the center of the grounding spring inner hole to extend in a suspension manner and are used for the sliding top-pressure cooperation with the housing of the adaptive connector. The annular body is provided with a plurality of U-shaped clamping pieces which are arranged at intervals along the peripheral direction. Each U-shaped clamping piece is provided with a clamping mouth which faces the direction departed from the center of the grounding spring inner hole. The invention also provides the shielding grounding spring which can be reliably fixed with the housing of the connector, the connector employing the shielding grounding spring, and the connector assembly.

The invention discloses a high-strength motor shaft. The high-strength motor shaft comprises a front connection rod and a rear connection rod, wherein a knurled rod, a first polished rod and a second polished rod are sequentially connected between the front connection rod and the rear connection rod; splines are arranged on the outer circle surfaces of the front connection rod and the rear connection rod; the splines on the front connection rod extend to the end side of the front connection rod; straight-line knurls are rolled on the outer circle surface of the knurled rod; a plurality of axial bar grooves are distributed at equal intervals in the outer circle surface of the first polished rod; a plurality of cross-shaped reinforcing groove nodes are distributed on the bar grooves. The high-strength motor shaft is simple and reasonable in structure, convenient to mount and use, small in possibility of skidding in the radial direction in the operation process, relatively good in torsion resistance, capable of conveniently locating and welding rib plates, good in stability and not easy for stress concentration and deformation; the precision of the motor shaft is effectively guaranteed; the service life of the motor shaft is prolonged; the normal operation of the motor is guaranteed.

The invention relates to a centralized arrangement type electric hydraulic power steering system for a large-scale full-bearing passenger car. The centralized arrangement type electric hydraulic power steering system comprises a frame system, a steering pull rod system and a steering pipeline system, wherein the frame system comprises a left stringer for a frame, a first beam for the frame, a second beam for the frame, an edge beam framework for the frame, an upper stringer frame for the frame, a rear beam framework for the frame, and an edge stringer for the frame; the steering pull rod system comprises a steering diverter, a steering diverter bracket, a steering intermediate transmission shaft, a steering engine, a steering engine bracket, a steering drop arm and a steering drag rod; the steering pipeline system comprises a steering oil tank, an electric steering pump, the steering engine, an oil inlet pipeline, a high-pressure pipeline and a low-pressure pipeline. The centralized arrangement type electric hydraulic power steering system disclosed by the invention not only is easy to arrange and high in the height of a low drive zone, but also is convenient to assemble and disassemble.

The invention discloses a precise positioning method for a stiffening plate of an H-shaped steel component. The precise positioning method comprises the following steps: 1) measuring, marking and carrying out region division; 2) installing a guide slide rail; (3) a movable limiting mechanism is installed, adjusted and positioned; 4) mounting an auxiliary fixing device; and (5) the connecting plates and the H-shaped steel beams are welded and fixed in sequence. The device is simple and reasonable in structural design, high in practicability, clear in principle and simple and convenient to adjust and operate, the H-shaped steel beam is segmented and divided in the length direction according to the length of the guide sliding rail and the actual length of the H-shaped steel beam, and step-by-step welding and positioning of the connecting plate are conducted with the divided segments as units; according to the auxiliary device for welding and fixing the connecting plates, the connecting plates at one division section are welded and installed firstly, after all the connecting plates in the division section are welded and installed, the whole auxiliary device is moved to the next division section, welding and positioning of the connecting plates at other division sections are conducted till welding and fixing of all the connecting plates are completed, the whole installation process is reasonable and scientific, and actual operation is convenient.

The invention discloses a highlight PCD appearance milling cutter. The highlight PCD appearance milling cutter comprises a tool body (1) and PCD blades (6). The highlight PCD appearance milling cutter is characterized in that four cutter grooves are formed in the front end of the tool body (1); a cutter groove concave arc (7) is arranged on the outer side face of each of the cutter grooves; each of the cutter grooves is composed of a groove bottom face (2), a first groove side face (3), a second groove side face (4) and a third groove side face (5); the PCD blades (6) are welded between the groove bottom faces and the first groove side faces; a blade concave arc (601) is arranged on the outer side of each of the PCD blades; and the blade concave arc (601) is matched with the cutter groove concave arc in structure.

The invention discloses a positioning and welding device of an anti-jumping rail support of an escalator. The linear segment of the escalator is provided with connecting channel steel, a left main auxiliary rail and a right main auxiliary rail, wherein the left main auxiliary rail is provided with a first horizontal supporting face and a first side face, and the right main auxiliary rail is provided with a second horizontal supporting face and a second side face. The anti-jumping rail positioning and welding device comprises a transverse rod body, and the left end and the right end of the transverse rod body can be supported on the first horizontal supporting face and the second horizontal supporting face respectively; the transverse rod body is provided with a fixing block tightly abutting against the first side face correspondingly and a locking connecting structure tightly abutting against and locking the second side face correspondingly; the transverse rod body is further provided with a two-way positioning block used for limiting the horizontal distance and the welding height between the anti-jumping rail support and the first side face. By adopting the positioning and welding device of the anti-jumping rail support of the escalator, the anti-jumping rail support can be positioned and welded quite conveniently, fast and accurately, and it is guaranteed that the mounting quality of subsequent anti-jumping rails can meet mounting requirement.

The invention discloses a leveling tool and leveling method for a bridge deck pavement reinforcing mesh. The leveling tool comprises a crow bar with a rotatable fulcrum and a leveling tool body, the leveling tool body comprises a leveling rod and a leveling rope, and two ends of the leveling rod are directly placed on a set scale height control point; the leveling rope is arranged at two ends of the top surface of the leveling rod, two ends of the leveling rope are connected with the leveling rod through a fixing part respectively, and the leveling rope is in a straight line state. By adoption of the leveling tool for the bridge deck pavement reinforcing mesh, the bridge deck pavement reinforcing mesh is leveled, a worker only needs to press the crow bar downwards through a holding portion of the crow bar, so that the crow bar upwards pries the reinforcing mesh, the leveling rope of the leveling tool located on the reinforcing mesh is completely in contact with the top surface of the leveling rod, when supporting steel bars are welded to the designed position of the reinforcing mesh, the worker holds the supporting steel bars conveniently to conduct positioning welding, welding is convenient, and the construction efficiency is improved. The leveling tool for the bridge deck pavement reinforcing mesh is reasonable in design, simple in structure, convenient to use and manufacture, and low in manufacturing cost.

The invention relates to the technical field of automatic welding, in particular to bias-rail type girder automatic welding equipment which is applied to horizontally welding rails to the two sides ofthe top end of a girder prefabricated panel. The welding equipment comprises a placing frame, at least three side surface elastic positioners, at least two end surface elastic positioners, rail end surface clamping positioners, dual-station two-way moving sliders, elastic dual-wheel resisters, a dual-station welding frame and a dual-station suspension portal frame, wherein the side surface elastic positioners are arranged at the two sides of the placing frame in a spaced mode; the rail end surface clamping positioners are arranged on four corners of the top end of the placing frame; the dual-station two-way moving sliders are horizontally arranged at the two sides of the placing frame; the working ends of the elastic dual-wheel resisters are vertically downwards arranged on dual working ends; dual working ends of the dual-station welding frame are arranged between the dual working ends of the elastic dual-wheel resisters in an inclined mode towards the two side surface of a rail welding surface; and the dual-station suspension portal frame is placed at the top end of the placing frame. The equipment can automatically position a prefabricated panel, can automatically weld the rail,and is high in work efficiency.

The invention discloses a detachable sterilization vehicle track for a sterilization cabinet, which is convenient to clean and is high in sanitation degree. The detachable sterilization vehicle track comprises a plurality of cushion blocks arranged on a bottom plate of the sterilization cabinet, wherein each cushion block is provided with two parallel closed trolley tracks with the cross section in a rectangular shape, each track is provided with a plurality of mounting holes, a lining sleeve is arranged in each mounting hole in a sealing mode, the bottom of each lining sleeve is provided with a locating plate, the center of each locating plate is provided with a connecting through hole, each cushion block is fixedly connected with a mounting bolt, the upper part of each mounting bolt penetrates out of the corresponding connecting through hole, each lining sleeve is internally provided with a compression part, the top surface of each compression part is not higher than that of the corresponding lining sleeve, and each compression part is provided with a threaded hole which is connected with the corresponding mounting bolt.

The invention discloses a motorcycle front panel installing plate structure. The motorcycle front panel installing plate structure comprises a front panel installing plate, wherein the profile of the outer periphery of the front panel installing plate is turned up, the middle portion of the front panel installing plate is provided with a T-shaped hollow cavity, the upper end of the T-shaped hollow cavity is bent, the lower portion of a flanging is provided with two symmetrical arc notches, the front panel installing plate and a motorcycle frame installing block are connected through a U-shaped upper supporting rod and a convex lower supporting rod, the opening end of the upper supporting rod and the opening end of the lower supporting rod are connected with the motorcycle frame installing block, and the other end of the upper supporting rod and the other end of the lower supporting rod are respectively arranged at the bending position and the positions of the arc notches. The periphery of the front panel installing plate is turned up so that the stiffness is enhanced, materials in the middle part is removed, due to the fact that the reserved part is bent, not only is stiffness increased, but also welding position is determined for the upper supporting rod, and welding is convenient. A reserved arc is cut so that weld location is convenient. The positions where the upper supporting rod and the lower supporting rod are located are in lap joint with the motorcycle, contacting is convenient, and welding is benefited, and besides, during an installing process, location is benefited, welding is convenient, machining time is saved, working efficiency is improved, and safety of a motorcycle is further increased.

The invention discloses a small high-pressure storage tank. The small high-pressure storage tank comprises a lower half tank body with the upper portion opened and an upper half tank body with the lower portion opened, wherein a spigot structure is arranged between the upper half tank body and the lower half tank body; and the upper half tank body and the lower half tank body are welded. According to the small high-pressure storage tank, through the spigot structure, the upper half tank body and the lower half tank body can be nested, welding and positioning are convenient, and welding is matched; and a bolt fixing structure is arranged, and the high pressure resistance of the tank bodies is achieved.