63results about How to "Keep the relative position unchanged" patented technology

The invention discloses a laser visual tracking system, which mainly comprises an industrial personal computer, wherein a COM 1 (Component Object Model) port of the industrial personal computer is connected with an X axis motor and a Z axis motor through a motor control and drive circuit; output ends of the X-axis motor and the Z-axis motor are connected with a welding torque; the controller of the welding torque and a welding machine control circuit are connected with the industrial personal computer; the industrial personal computer is also connected with a laser sensor for acquiring information on the welding torque and a workpiece in real time and delivering the acquired information to the industrial personal computer; the laser sensor is a visual sensing module and mainly comprises a camera and a laser diode; the camera is vertically aligned with the workpiece; a laser is slantwise arranged and forms an angle of 30 degrees with the laser; laser emitted by the laser irradiates the workpiece to form a narrow light strip; after the light strip is reflected or refracted by the workpiece, the light strip enters the camera to image, and the image is transferred to the industrial personal computer for processing; after the image is analyzed and processed by the industrial personal computer, an action command is emitted to the welding torque, the X-axis motor and the Z-axis motor.

The invention relates to a welding machine, particularly to an automatic straight pipe flange welding machine which is suitable for both plug-in type flange assembly type welding and butt-joint type flange assembly welding. The automatic straight pipe flange welding machine comprises a base, wherein base guide rails are arranged on the base, a trolley base is arranged on the base guide rails, a control system is arranged on one side of the trolley base, a welding torch machine is arranged on the trolley base and comprises a longitudinal adjusting mechanism, a lateral adjusting mechanism, an inner welding torch mechanism, an outer welding torch mechanism and a roller adjusting mechanism, wherein the inner welding torch mechanism consists of an inner welding torch upright post device and aninner welding torch device, and the outer welding torch mechanism includes an outer welding torch upright post device and an outer welding torch device. The automatic straight pipe flange welding machine has high automatic degree, improves welding efficiency, reduces grinding time and waste of welding materials, guarantees welding quality, and attractive formation of weld seams, is convenient to operate, saves labor, and lightens labor intensity.

The invention provides a force feedback man-machine interaction system and method based on the electromagnetic theory and mobile tracking. By the adoption of the force feedback man-machine interactionsystem and method, a manipulator is allowed to use gestures to control a robot and meanwhile can feel force feedback in the operation process. The interaction system includes five parts of a local control calculator, a mobile tracking platform, a gesture recognition sensor, a magnetic force generating device and a magnetic force sensing device. The interaction method is divided into two parts ofcontrol and feedback. The control part uses the non-contact gesture based on a visual interface as control information, while the feedback part uses the non-contact force magnetic force as feedback information to reduce the physical limitation when interacting, meanwhile a mobile tracking function is added, and it is ensured that the magnetic force generating device and the magnetic force sensingdevice can keep relative positions and postures of the magnetic force generating device and the magnetic force sensing device unchanged, so that the problem of too little stress caused by the attenuation of a magnetic field is reduced.

The invention belongs to the field of mechanical automation, and particularly relates to a pipeline all-position operation machine and control method thereof. The operation machine comprises a guide rail, a motion unit, an executive terminal, a driving unit and a control unit, wherein the motion unit conducts peripheral motion along the guide rail; one end of the motion unit is connected with the executive terminal; the output end of the control unit is connected with the input end of the driving unit; the output end of the driving unit is connected with a driving motor of the motion unit; the driving unit receives pulse signals sent out by the control unit and drives the driving motor of the motion unit to conduct corresponding motions; the motion unit comprises a peripheral motion mechanism, an axial motion mechanism, a radial motion mechanism and a swing mechanism which are capable of conducting independent motion driven by motors; the peripheral motion mechanism is provided with a scan mechanism. The operation machine has the function of automatically conducting pipeline cutting and welding, the defect of manual operation on irregular pipelines is overcome, and real-time detection and automatic adjustments are achieved.

The invention relates to a rotational flow gas outlet structure for a magnetic focusing hall thruster and belongs to the field of hall thrusters. The rotational flow gas outlet structure solves the problem of the poor ionization characteristic of an existing high-specific-impulse krypton working medium hall thruster. The rotational flow gas outlet structure comprises a top guide plate, a middle guide plate, a gas distributor base, an installation pillar, a gas guide tube, a discharge channel and a positive pole. The top guide plate, the middle guide plate and the gas distributor base are arranged in parallel from top to bottom and are fixedly connected to form a primary buffer chamber and a secondary buffer chamber in a laser welding manner. The primary buffer chamber and the secondary buffer chamber are coaxially arranged in the discharge channel, and the top guide plate guides neutral gas through inclined holes to rotate in the discharge channel. The positive pole is arranged on theportion, close to the top guide plate, inside the discharge channel. The gas guide tube and the installation pillar are welded to both sides of the bottom of a gas distributor. By the adoption of therotational flow gas outlet structure, the utilization rate of a working medium is increased effectively, and especially the effect on the improvement of the ionization performance of the krypton working medium is outstanding.

The invention relates to an automatic driving robot for an indoor rotating hub test. The robot comprises an adjustable base, an accelerator pedal robot and a brake pedal robot, wherein the acceleratorpedal robot and the brake pedal robot are arranged on the adjustable base side by side; the accelerator pedal robot comprises an accelerator pedal clamping device, an accelerator pedal executing mechanism and an accelerator pedal power mechanism. The accelerator pedal executing mechanism comprises a telescopic rod and a hollow connector, wherein the telescopic rod is movably mounted in the hollowconnector; one end of the hollow connector is in threaded connection with an expansion sleeve assembly; one end of the telescopic rod penetrates through the expansion sleeve assembly to be connectedwith the accelerator pedal clamping device, and the other end of the hollow connector is sleeved with a guide connector; one end of the guide connector is connected with an iron connector, a magnet isinstalled at the other end of the hollow connector, one end of the guide connector is rotationally connected with an accelerator rocker arm, and the accelerator rocker arm is connected with an accelerator pedal power mechanism. The robot is high in cost performance, high in environment adaptability, safe, reliable and wide in application range.

The invention relates to rice processing equipment. The rice processing equipment comprises an outer cylinder and an inner cylinder, and an annular cavity is formed between the inner cylinder and theouter cylinder; a transverse filter plate is inserted in the cavity; a first cavity body is formed above the filter plate and internally provided with a first negative pressure fan connected to the outer wall of the inner cylinder, and a bran shell recycling box is arranged on the outer side of the first cavity body; a second cavity body is formed below the filter plate, a discharging opening is formed in the bottom of the second cavity body, and inner polishing pellets and outer polishing pellets are arranged in the second cavity body; a third cavity body is formed in the inner cylinder, anda vertical rod penetrates through the interior of the third cavity body; the bottom end of the vertical rod is connected with a motor, and the top end of the vertical rod is connected with a transverse plate; the vertical rod is connected with a second negative pressure fan; an inner gear ring is arranged between the transverse plate and the outer cylinder, and a vertical rotating shaft is rotatably arranged on the transverse plate; the rotating shaft is connected with a straight gear engaged with the inner gear ring, and the bottom of the rotating shaft is rotatably connected with a transverse shaft; and one end of the transverse shaft is connected with a third negative pressure fan. According to the scheme, both bran shells and broken rice are prevented from entering the bran shell recycling box, and thus the bran shells and the broken rice are separated.

The invention discloses a testing method of LED frame products. The testing method adopts an LED frame product testing system for testing, and comprises the following steps that two material frame bins filled with materials are respectively placed in two material frame lifting mechanisms for feeding, and separation paper is laid between adjacent material frame products; grabbing mechanisms grab and convey the material frame products in the material frame lifting mechanisms correspondingly below the grabbing mechanisms into conveying devices to be conveyed and suck and convey the separation paper into a separation paper storage mechanism of a feeding device, and the two grabbing mechanisms work alternately in sequence; the two conveying devices alternately work in sequence to convey the material frame products, and in the conveying process of the material frame products, the material frame products sequentially pass through a first optical detection device, a second optical detection device and a third optical detection device to be subjected to multiple times of optical detection; and a material receiving device is used for classifying, stacking and collecting the material frame products subjected to optical detection. The testing method of LED frame products has the advantages of being high in automation degree, accurate in test result, and capable of reducing the labor intensity of workers, improving the working efficiency and improving the product yield.

The invention discloses a drilling and chamfering integrated device for steel pipe machining. The device comprises a knife holder and an inner ring sleeve. The lower end of the inner ring sleeve is provided with a drill bit through a fixed base, a hollow column and multiple insulation cylinders are fixedly mounted between the fixed base and the knife holder, a conductive bar is connected between the hollow column and each insulation cylinder, a pressurizing mechanism is arranged in each insulation cylinder, multiple knife returning boxes are symmetrically mounted on the side wall of the innerring sleeve, reset mechanisms are arranged in the knife returning boxes, an electromagnetic valve is arranged between each knife returning box and the corresponding insulation cylinder, and the side wall, away from the hollow column, of each knife returning box is slidingly provided with a chamfering knife in a penetrating manner. The device can be used for a drilling and chamfering device for conventional steel pipe machining to be used, in the chamfering process, according to actual machining needs, chamfering knives of different specifications can be rapidly replaced, knife retreating, replacing, aligning and other tedious operation are not needed, and the machining precision and the machining efficiency are further improved.

The invention relates to a capacitor electric core placing device. The capacitor electric core placing device comprises a clamping mechanism, a conveying control mechanism, a qualified product holdingmechanism and an unqualified product holding mechanism. The clamping mechanism places electric cores obtained after winding onto the conveying control mechanism. The unqualified product holding mechanism is connected with the structure, located on a first conveying portion, of the conveying control mechanism, and the qualified product holding mechanism is connected with the structure, located ona second conveying portion, of the conveying control mechanism. The extending direction of the qualified product holding mechanism is perpendicular to the conveying direction of the conveying controlmechanism. After receiving the electric cores, the conveying control mechanism places the unqualified electric cores into the unqualified product holding mechanism and conveys the qualified electric cores to the second conveying portion in sequence; and after the second conveying portion is full of the electric cores, the conveying control mechanism simultaneously pushes the electric cores on thesecond conveying portion into the qualified product holding mechanism in the direction perpendicular to the conveying direction, and the relative positions of all the electric cores are kept unchanged. The capacitor electric core placing device can improve production efficiency.

The invention discloses a seal clamping device for a sealing machine and belongs to the field of office equipment. The seal clamping device structurally comprises a positioning nut matched with a rack, and a seal positioning mechanism fixedly connected with the positioning nut. The seal clamping device is characterized in that magnets are arranged at the upper end of the positioning nut to serve alignment connecting pieces; the seal positioning mechanism comprises a conical inner thread fixing sleeve and a conical outer thread opening and closing lock sleeve matched with a conical inner thread; an inner body of the conical outer thread opening and closing lock sleeve is matched with an outer body of a positioning seal body; and the seal positioning mechanism is positioned at the lower end of the positioning nut through a threaded structure. Due to the fact that the conical outer thread opening and closing lock sleeve with different inner locking cavity shapes is designed for adapting to replacement of round, square and even elliptical seals, and in addition, the conical shape and the design of a contraction joint of the conical outer thread opening and closing lock sleeve are used for meeting the requirement for clamping and fixing of seals of the same kind and different specifications, and thus the seal clamping device can have multiple purposes.

The invention provides a double-spin vortex breaking device for inhibiting vortex-induced vibration of a steel tube high-rise structure. The device comprises two annular bases which are arranged parallelly and vertically, and the outer wall of each base is rotationally sleeved with an annular rotating arm; the outer wall of each rotating arm is fixedly provided with four connecting arms, and the connecting arms are arranged uniformly around the axes of the rotating arms; the upper and lower bases are fixedly connected through rectangular plates, one edges of the rectangular plates are fixedlyconnected with the connecting arms of the upper and lower bases, the corresponding other edges of the rectangular plates are provided with two rotating rods, and the two rotating rods are parallel tothe connecting arms; one ends, away from the rectangular plates, of the rotating rods are rotationally provided with connecting rods, and the other ends of the connecting rods are fixedly provided with four hemispherical shell-shaped wind cups respectively. In short, the double-spin vortex breaking device has the advantages that the vortex-induced vibration of the steel tube high-rise structure generated in the transverse wind direction is inhibited, the safety of the steel tube high-rise structure is improved, and the economic loss is reduced.

The invention belongs to the technical field of welding equipment and relates to a welding gun adjusting mechanism. The welding gun adjusting mechanism comprises a mounting seat, an adjusting air cylinder is fixed on a side plate of the mounting seat, sliding rails are arranged on the upper surface of the mounting seat, a sliding plate is slidably connected to the sliding rails, the top of the sliding plate is connected with a welding gun fixing seat, a guide shaft and a welding gun are arranged on the welding gun fixing seat, insulating bushes are arranged among the guide shaft, the welding gun and the welding gun fixing seat, a fixing block is arranged on the welding gun fixing seat, adjusting handles are connected on the fixing block in a threaded manner, a spring seat is arranged in a shaft hole of each adjusting handle, and a compression spring is arranged on each spring seat. The welding gun adjusting mechanism has the advantages that the welding gun adjusting mechanism is simple in structure, and during operation, the welding gun fixing seat and the welding gun are driven to move back and forth on the mounting seat by the adjusting air cylinder according to practical situations, so that horizontal position movement is achieved; in the vertical direction, the compression spring compresses guide wheels between an H-beam flange plate and a web plate, so that relative positions between the welding gun and the H-beam flange plate as well as between the welding gun and the web plate are not changed.

The invention discloses an imaging module of a projector. The imaging module of the projector comprises a prism, a light modulator and a hollow connecting support frame, wherein the prism and the light modulator are connected on the front face and the back of the connecting support frame in a relatively parallel mode to form into a whole. The imaging module integrates the prism and the light modulator into a whole through the connecting support frame so as to ensure that relative positions of the prism and the light modulator are not changed, parallelism of the prism and the light modulator can be effectively ensured, and consistency of optical performance is ensured. In addition, due to the integral design, maintenance and protection of the modulator are convenient, adjustment is reduced at the same time, assembling efficiency is improved, tool equipment is simplified, and production efficiency is further improved. In addition, the invention further provides the projector using the imaging module.

The invention discloses a seed stem cutting device of a cassava planting machine. A driven gear is meshed with a driving gear. The driven gear is fixed to the end of a driven shaft. The driving gear is fixed to the front part of a driving shaft. The front end of the driving shaft is connected to a main shaft of a gear motor through a coupler. Two seed stem cutting devices are used and are arrangedin a case. The seed stem cutting device comprises cutters, rotating drums and retaining plates. The two rotating drums are respectively fixed on the driven shaft and the driving shaft. The cutters are fixed to the rotating drums. Two ends of the cutter are fixedly provided with the retaining plates. The case is fixed on a support. The gear motor is fixed to the support. A top plate of the case isfixedly provided with a charging pipe. The lower part of the charging pipe is inserted into the case. The seed stem cutting device has the advantages of good cutting uniformity and good stability.

The invention discloses a crossbeam structure of a semitrailer and a welding process thereof and belongs to the field of crossbeam structures of vehicles. The technical scheme is as follows: the structure comprises a left wing plate and a wing web plate, two web plates are arranged between the left wing plate and the right wing plate, a plurality of connecting plates with arched sections are arranged between the left wing plate and the right wing plate, a plurality of arched insertion holes are formed in each web plate, two ends of each connecting plate separately penetrate the insertion holesand are fixed to the side walls of the left wing plate and the right wing plate, an extension plate is integrally connected to the middle of each web plate, a plurality of T-shaped slots are separately formed in opposite side of each extension plate, a positioning plate is arranged between two extension plates, two ends of each positioning plate are fixedly connected to a clamping plate verticalto the positioning plate, separately, and two ends of each positioning plate and the clamping plate stretch into the T-shaped slots, separately. Therefore, the position of a part of the crossbeam is determined conveniently for welding, so that a certain error can be avoided.

The invention discloses a passive rectifying device applied to double vertical axis fans, and belongs to the technical field of wind power generation. The passive rectifying device applied to the double vertical axis fans comprises the two vertical axis fans, a supporting platform used for mounting the vertical axis fans, and a rectifying device arranged on a framework. When the passive rectifyingdevice is utilized, the rectifying device is firstly in contact with air, a part of air is forced to change direction, wind velocity in the middle zones of the fans is decreased, and wind velocity onthe two sides is increased; and resistance of blades in an adverse wind zone is reduced through a rectified wind filed, thrust of the blades in a favorable wind zone is improved, the purpose of increasing the rotation speed of the fans is achieved, and starting wind velocity of the fans can be effectively decreased.

The invention provides a novel cat claw structure used for a small steam turbine. Connection of a steam cylinder and a bearing seat is achieved, the structure is novel, it can be effectively guaranteed that the relative positions of the steam cylinder and the bearing seat are not changed, and meanwhile the smooth free expansion of the steam cylinder is guaranteed. According to the technical scheme, the novel cat claw structure comprises a bearing seat supporting plate, a fixed block, a steam cylinder connecting piece and a transverse pin; and the fixed block is fixed to the bearing seat supporting plate, one end of the steam cylinder connecting piece is fixedly connected with the steam cylinder, the other end of the steam cylinder connecting piece is of a U-shaped fork structure, the fixedblock is arranged in the U-shaped fork, the two sides of the U-shaped fork are each provided with a through hole, the two through holes are coaxial, coaxial through holes are also formed in the positions, corresponding to the two through holes, of the fixed block, the transverse pin is arranged in the through holes in a penetrating manner, and therefore the U-shaped fork is connected with the fixed block.

The invention provides novel electronic component resistor sleeve penetrating equipment which comprises a shell, a thermal resistor is arranged in the shell, connecting wires are fixedly connected to the two sides of the thermal resistor, a positioning mechanism is arranged in the shell, and a tightening mechanism is arranged in the shell. According to the novel electronic component resistor sleeve penetrating equipment, during use, the sleeve shell is inserted into the side face of a thermal resistor to protect the thermal resistor, when the inner wall of the shell is plasticized, the extrusion force between the inner wall of the shell and the side face of the thermal resistor is reduced, the friction force between the inner wall of the shell and the side face of the thermal resistor is reduced, and under the action of vibration, when the shell moves relative to the thermal resistor, the thermal resistor is protected. When the casing is plasticized and moves relative to the thermal resistor, the positioning mechanism restores the movement of the casing through the extrusion wheel to ensure that the relative position between the casing and the thermal resistor is unchanged, so that the effect that the thermal resistor cannot be continuously protected due to the change of the relative position between the casing and the thermal resistor when the casing is plasticized and moves relative to the thermal resistor is achieved.

The invention relates to a dismounting tool of a main bolt and a main nut of a reactor pressure vessel and a using method thereof. The dismounting tool comprises a body structure, an external power device and a handle, wherein the body structure comprises a round base, a large gear is embedded in the base, the large gear is positioned on the base through a copper ring, moreover, the copper ring isfixed on the base through a screw A, a rotating ring is arranged on the lower end surface of the large gear, three clamping groove type slideways are arranged on the rotating ring, a shifting tooth is arranged in each clamping groove type slideway, moreover, the shifting teeth, the rotating ring and the large gear are connected into a whole through a screw B, a limiting structure is arranged right above the shifting teeth, and is used for clamping the dismounting tool on the upper end surfaces of the main bolt and the main nut so as to limit the axial position of the dismounting tool, and aninner gear determined by the three shifting teeth is meshed with an outer gear on the main bolt and the main nut. The handheld tool for electrically dismounting the main bolt and the main nut of the reactor pressure vessel is provided.