32results about How to "Increased stiffness requirements" patented technology

A machine tool (100) is arranged to deliver at least one of an energy source and a media, through a processing head (300) onto a work-piece for material addition, inspection or data collection, wherein the machine-tool has a clamping mechanism (202) arranged to temporarily receive the processing-head and wherein the machine tool comprises a stop block (390) having a manifold arranged to deliver atleast one of the energy and media and wherein the processing head comprises an anti-rotation arm (391) and connector (600) arranged to be connectable to the stop block and wherein the processing headfurther comprises a manifold arranged to engage with the stop block manifold when the processing head is connected to receive the energy or media. The machine tool may be a multi-axis machine tool and the stop block can be fixed to the machine tool or may be integrated therein.

The invention relates to a grinding device of a milling vehicle for a high-speed rail track and a dismounting method of a grinding wheel assembly. The device comprises the grinding wheel assembly and a main grinding shaft, wherein the a locking screw and a drive pin are arranged between the main grinding shaft and the grinding wheel assembly, a main shaft flange is arranged in the shaft center of the main grinding shaft, a first dismounting hole in which a dismounting rod can be inserted is formed in the main shaft flange, a second dismounting hole communicated with the first dismounting hole is formed in the grinding wheel assembly, a block edge is arranged at one end of the dismounting rod, a through groove for the block edge to pass is formed in the first dismounting hole and the second dismounting hole, and a gear part which is used for matching the gear with the block edge when the dismounting rod is mounted at a center angle is arranged at the tail end of the first dismounting hole. The method comprises: inserting one end of the dismounting rod into the grinding wheel assembly and the main grinding shaft, and rotating the dismounting rod to enable the block edge to be clamped at the gear part of the tail end of the first dismounting hole; applying an upward load to the other end of the dismounting rod by a lifting device; and dismounting the locking screw and the drive pin between the grinding wheel assembly and the main grinding shaft to enable the grinding wheel assembly to fall over the dismounting rod, and moving away the grinding wheel assembly, to complete the dismounting.

The invention provides a connection structure of a front cross beam of an automobile roof and a side wall assembly, belonging to the technical field of automobiles. The utility model solves the problem of poor collision performance at the connection between the front beam of the existing automobile roof and the side wall assembly. The connection structure of the front cross member of the roof cover and the side wall assembly of the automobile includes a connecting plate and a sunroof reinforcement plate fixedly connected with the front cross member of the roof cover. The base plate, the sunroof reinforcement plate has a longitudinal portion extending along the front and rear directions of the vehicle body, the longitudinal portion has a main plate body arranged along the height direction of the vehicle body, the base plate is connected with an extension plate body extending toward the rear side of the vehicle body, and the longitudinal portion is on the upper edge of the main plate body. The longitudinal part is welded with the inner plate of the upper side beam at the lower edge of the main body, and the inner side of the extension plate body is welded at the lower edge of the main body, and the outer side of the extension plate body is welded with the inner plate of the upper side beam. The invention enables the automobile to have better frontal collision performance and small offset collision performance.

The invention relates to a head structure of a parallel triple-axis main spindle, belonging to the technical field of mechanical manufacturing, which comprises a main spindle, a movable platform, a stationary platform, and three identical structural branch mechanisms which are arranged in a triangle for connecting the movable platform and the stationary platform, the main spindle is fixed on the movable platform; each branch mechanism comprises a movement pair, a planar parallelogram mechanism, and a spherical hinge; the planar parallelogram mechanism comprises two parallel long rods with same length and two short rods with one end connected with the long rod via a revolute pair. By adopting the planar parallelogram mechanism, the head structure of the parallel three-axis main spindle hasthe advantages of improving the structural rigidity, realizing the Z axis movement of the platform and rotation around X axis and Y axis by overriding three movement pairs, changing the main spindle working position, and having the possibility to comprehensively machine the big scale complicated structural parts.

The invention discloses a composite cross arm for a power transmission line and a preparation method thereof, belonging to the field of members matched with power transmission poles. The structure of the composite cross arm for the power transmission line adopts the cylindrical solid structure, and the cylindrical solid structure is divided into three layers, namely a core layer, an intermediate layer and an outer layer, from inside to outside, wherein the core layer is a composite solid rod which is formed by pultrusion; the intermediate layer made of a glass fiber resin based composite is wound on the outer surface of the solid rod; and the outer layer constituted by an umbrella skirt is coated on the outer surface of the intermediate layer. The preparation method comprises the following steps: performing the pultrusion on glass fiber reinforced thermosetting resins for forming the core layer; winding the resin-based composite on glass fibers for constituting the intermediate layer;and coating the layer of the umbrella skirt outside the intermediate layer for constituting the outer layer. The cross arm prepared by the method is light in weight, good in insulativity and anti-aging performance and convenient to mount, and can effectively improve the safety coefficient of the actual line when being applied on the actual line and reduce the cost.

The invention provides a seven-freedom-degree three-branch parallel symmetric mechanism for plate splicing. An upper platform 1 and a lower platform 2 of the parallel mechanism are the same. An upper rotating pair and a lower rotating pair which are driven by a motor are arranged in the central normal direction of the upper platform and the central normal direction of the lower platform respectively. The upper platform and the lower platform are connected through two SPS branches and one RRRRR branch, wherein the two SPS branches are each composed of ball pairs at the two ends and a translational pair driven by a middle linear motor; and the RRRRR branch is composed of five rotating pairs, and the first, third and fifth rotating pairs of the RRRRR branch are driven by the motor. The three branches between the upper platform and the lower platform of the mechanism have the mirror reflection symmetric feature, and continuous and efficient movement is achieved on the condition that system complexity is not increased on the basis of high-precision and high-rigidity positioning of the three parallel branches and the mirror reflection symmetric feature between the upper platform and the lower platform.

The invention relates to a wing external joint. The wing external joint includes a horizontal plate and a side wall. There are two side walls. The two side walls are placed at both ends of the horizontal plate and the two The wall is located on the same side of the horizontal plate, and bosses are provided at both ends of the horizontal plate, and the bosses are located on the opposite side of the side wall, and a first connecting hole is provided through the boss, and on both sides A plurality of second connection holes are provided on the walls, the wing external joint is connected to the wing through the first connection holes, and the wing external joint is connected to the transition beam through the second connection holes. The external wing joint of the invention has a simple structure, greatly reduces the number of parts, and reduces the production cost; it is easy to disassemble and is convenient for maintenance in the future; the structural strength is improved and meets the use requirements.

Disclosed is a pulsator washing machine with multiple washing modes. The pulsator washing machine comprises a water containing barrel, a dewatering barrel, a transmission shaft and a motor, and is characterized in that the dewatering barrel side wall and the dewatering barrel bottom wall of the dewatering barrel are provided with a plurality of water holes correspondingly; the middle of the transmission shaft is mounted in a shaft hole in the bottom wall of the water containing barrel; the lower part of the transmission shaft is in transmission relation with the motor; the upper part of the transmission shaft is connected with the dewatering barrel bottom wall; one or more water stirring bodies are arranged on the dewatering barrel or the transmission shaft; when the transmission shaft rotates forwards, the water stirring body drives water in the dewatering barrel to flow into the water containing barrel through water holes in the dewatering barrel side wall and meanwhile drives washing water in the water containing barrel to flow into the dewatering barrel through water holes in the the dewatering barrel bottom wall. when the transmission shaft rotates reversely, the water stirring body drives the washing water in the dewatering barrel to flow into the water containing barrel through the water holes in the dewatering barrel bottom wall and meanwhile drives the washing water in the water containing barrel to flow into the dewatering barrel through the water holes in the dewatering barrel side wall; and the water stirring body drives water to circularly flow in two directions to wash clothes, the efficiency is high, and the effect is good.

The invention relates to the technical field of forging mechanical presses, in particular to a device for improving the structural rigidity and precision of a hot die forging press. The device comprises a machine frame, a working table and a slider body. An overall cast steel box type frame symmetrical structure is adopted for the machine frame, and a symmetrical cage type structure is formed through an X-shaped connecting plate. The bottom of the working table is provided with positioning pins and bolts so that the working table can be fixed to the machine frame. The slider body is of an overall cast steel structure and is provided with long octahedral guide rails, wherein the guide rails on the front side, the right side and the rear side are 90-degree straight guide rails, and the frontand back guide rails on the left side are inclined guide rails. The left side in the machine frame is provided with a left-right gap adjusting mechanism. The front side in the machine frame is provided with a front-back gap adjusting mechanism. The device has the advantages that the dynamic rigidity of the whole machine is remarkably improved and a slider is high in guide precision and unbalanceloading resistance; and meanwhile, the weight of the whole machine can be reduced, the operation precision and the quality of forge pieces are improved, the precision forging of special-shaped complicated pieces of the hot die forging press is realized, and the effects of effectively improving the rigidity, being high in efficiency and green and saving materials are realized.

A movable six-freedom mixed robot is composed of a static platform, three branch joins AAo, BBo and CCo, and a movable platform. Said branch join AAo (or BBo) has three guide rods: moving rods X, Y and Z, whose moving directions are mutually perpendicular for realizing the movement in X, Y and Z directions. The moving rods X, Y and Z of AAo and the moving rods Y and Z of BBo have drive force but the moving rod X of BBo has not. It can realize 6-freedom movement of movable platform. Its advantages are good decoupling performance of branch joins, high rigidity of movable platform, and no error accumulation.

The invention relates to a motorcycle back steering lamp, which comprises a main body fixed on the back mud flap, wherein said main body is divided into the left and right steering lamp mounting chambers which are connected via the connector; the left and right mounting chamber is both mounted with lamp, reflector, and lamp cover. The invention is integrated molded, to improve the install and manage efficiency. And the invention can improve the rigidity and simplify the installment.