31results about How to "Guaranteed horizontal stability" patented technology

The invention relates to the field of machining, in particular to an automatic chip feeding device for printed circuit board welding. The automatic chip feeding device comprises a base, and further comprises a feeding mechanism, a clamping mechanism and a material moving mechanism, wherein the feeding mechanism comprises a conveyor and a pushing and separating assembly; the material moving mechanism comprises a driving assembly, a feeding assembly, a pushing assembly and two symmetrically-arranged guide rails, wherein the two guide rails are both arranged right above the base through first supporting rods, the driving assembly is vertically arranged between two workbenches through a first fixing plate, the pushing assembly is horizontally arranged at the end, close to the pushing and separating assembly, of one of the workbenches, and is perpendicular to the workbenches; and the feeding assembly is horizontally arranged at the end, close to the workbenches, of the pushing assembly through a first supporting plate and is perpendicular to the workbenches. The automatic chip feeding device for printed circuit board welding has the advantages that the structure is simple, the use is convenient, the automation degree is high, the fatigue degree of workers is reduced, and the production efficiency is improved.

The invention discloses a layered collection and preservation device for deep lake water samples, which comprises a frame assembly, a sampling and preservation device, a transmission device, a power device and a flow guide device, the frame assembly is fixedly connected with the sampling and preservation device, one side of the sampling and preservation device is communicated with one side of the transmission device, one side of the transmission device is in fastening connection with one side of the frame assembly, the frame assembly is in fastening connection with the power device, the frame assembly comprises a frame, a flow guide device is arranged on the outer ring of the frame, the frame is in fastening connection with the flow guide device, and the power device comprises a sedimentation assembly and a jacking assembly. The bottom side of the sedimentation assembly is fixedly connected with the upper end of the frame, the upper side of the jacking assembly is fixedly connected with the lower end of the frame, a fixing groove is formed in the cylinder body, a transverse plate is arranged at the upper end of the cylinder body and fixedly connected with the cylinder body, a bottom plate is arranged at the lower end of the cylinder body, and the outer circle face of the bottom plate is fixedly connected with the inner side wall of the fixing groove.

The invention relates to cutting equipment and a rotating worktable thereof. The rotating worktable comprises a base, a rotating table plate, a driving assembly, a plurality of floating assemblies, acarrying table, sensing pieces and photoelectric switches. The rotating table plate is rotatably connected to the base, the driving assembly is arranged on the base, and the power output end of the driving assembly is connected with the rotating table plate; the multiple floating assemblies are all arranged on the base, and each floating assembly is located between the rotating table plate and thebase, and used for supporting the rotating table plate in a floating mode; the carrying table is arranged on the side, away from the base, of the rotating table plate; the sensing pieces are arrangedon the rotating table plate; and the photoelectric switches are arranged on the base and correspond to the sensing pieces, and the photoelectric switches are in communication connection with the control end of the driving assembly and are used for sensing the sensing pieces and sending out sensing signals. The rotating worktable enables the rotating table plate to rotate to the predetermined angle position accurately and stably, and the problem of low positioning precision of a positioning mechanism is solved.

The invention relates to a deck ladder for a follow-up horizontal ship, which belongs to the field of ship supply equipment, and comprises a deck ladder framework, a safety guardrail and a rolling wheel component which is arranged at the bottom part of the deck ladder framework, wherein a group of upward boarding steps are arranged on the deck ladder framework, and the safety guardrail is installed on the deck ladder framework at the two sides of the boarding steps; the rolling wheel component at the bottom of the deck ladder framework comprises a rubber rolling wheel assembly and a universal wheel component, the rubber rolling wheel is installed at the bottom of the deck ladder framework, which is close to one side of an accommodation ladder springboard, and the universal wheel component is installed at the bottom of the deck ladder framework, which is far away from the side of the accommodation ladder springboard; and the deck ladder framework and the accommodation ladder springboard are hinged onto a rolling wheel hinge pin of the rubber rolling wheel assembly. The deck ladder can be suitable for the vertical, longitudinal and lateral translations of the ship due to the tiding and other causes, the horizontal stabilities of the deck ladder for the ship and a deck plane are enabled to be maintained during the complete supply operation, the ergonomic environment of a deck end is effectively improved during the accommodation ladder supply operation, so a more reliable and humanized boarding operation function is provided.

The invention discloses a horseshoe processing and preparation method. The horseshoe comprises a bottom plate. The method comprises the steps of step I, preparing raw materials: after selecting a goodround steel, cutting the round steel to the required length with a cutting tool, and removing the dust and debris on the round steel, step II, discharging pretreatment: putting the round steel obtained in step I into an intermediate frequency furnace, and making the internal temperature of the intermediate frequency furnace reach 1050 DEG C; and step III, pressure forming: blanking the round steel heated in step II by a punch, and placing the round steel on the bottom plate of a pressure forming device for stamping forming, so that the round steel is stamped into the shape of a horseshoe. Thehorseshoe processing and preparation method can play a good role in bending, and can avoid the deviation of the round steel in the stamping process. The method is convenient to fix and clamp the bentround steel. Moreover, the horizontal stability of a stamping plate is always maintained in the stamping process, the damage of a limit platform caused by the inclination of the stamping plate is avoided. The method has a good stability.

The invention provides a hovercar, and relates to the technical field of hovercars. The hovercar comprises an aerofoil vehicle body, a telescopic wing end standing vortex high lift device, a foldable empennage, a plurality of first ducted fan engines and a plurality of second ducted fan engines; the telescopic wing end standing vortex high lift device is arranged on the side wall of the aerofoil vehicle body, and the foldable empennage is arranged on the upper surface of the aerofoil vehicle body; the plurality of first ducted fan engines are evenly arranged on the two sides of the aerofoil vehicle body, and the second ducted fan engines are arranged at the tail of the aerofoil vehicle body. A novel appearance conforming to aerodynamics and flight dynamics principles is adopted, so that the lift force of the hovercar is improved.

The invention discloses a municipal road bridge simply supported beam construction structure which comprises two adjacent floor bases. Clamping grooves are formed in the upper ends of the two floor bases, and limiting flanges abutting against the floor bases are fixedly arranged on supporting columns in a sleeving mode. The supporting columns provided with vertical holes and piston cavities are arranged in the adjacent floor bases, the pistons and strong supporting rods which form an integrated structure are arranged in the vertical holes and the piston cavities, and the strong supporting rodsare used for supporting horizontally-arranged bearing cantilever beams; a supporting frame with an adjustable height position is arranged on the upper side wall of each supporting column in a sleeving mode, and the supporting frame and the supporting columns are connected with the bearing cantilever beams; and threaded hanging rods arranged in the arc-shaped supports are arranged at the lower ends of the bearing cantilever beams at equal intervals, and the arc-shaped supports sleeve the threaded hanging rods so that the bearing cantilever beams can be kept horizontal and stable. Mounting columns and limiting frames which jointly support a bridge deck are arranged on the bearing cantilever beams, and the limiting frames are used for righting and limiting the bridge deck so that the stability and the bearing performance of the bridge deck are guaranteed.

The invention discloses a contact piece riveting tool and a riveting method. The tool comprises a pressing riveting module and a base. The pressing riveting module comprises a horizontal fixing plateand a vertical fixing plate mounted on the horizontal fixing plate. A clamp and limiting plates are mounted on the upper portion of the vertical fixing plate. The base comprises two layers of base plates. Mounting holes and auxiliary positioning protrusions are arranged on the base plates. During riveting, corresponding parts to be riveted are fixed to the base and the limiting plates correspondingly, the lower pressure is applied by the clamp, and successful riveting of the corresponding parts is achieved. The contact part riveting tool is simple in structure and convenient to operate and maintain; by using the base and the limiting plates with the positioning function, the stability of the parts in the horizontal direction during riveting is guaranteed, the riveting precision is guaranteed, the riveting quality is improved, and the riveting waste is not generated; and the tool is used for replacing manual hammer riveting, the hand-held pre-riveting link is reduced, the injury risk ofan operator is reduced, the time of circulation of parts among stations is shortened, the whole production time is shortened, and the working efficiency is improved.

The invention belongs to the technical field of drop-leakage-free plugging valves, and discloses a drop-leakage-free plugging valve for liquid cooling water cooling and heat dissipation, the drop-leakage-free plugging valve comprises a main body and a joint, the right side of the main body is fixedly connected with a mounting head, the right side of the inner wall of the main body is fixedly sleeved with an inner ring, and the right side of the inner wall of the inner ring is fixedly sleeved with a sealing column; the left side of the outer surface of the sealing column is elastically connected with a sealing ring through a second spring, and the top of the main body is fixedly connected with a placing block. In the mounting process, it can be guaranteed that cooling in the main body cannot leak drops, finally, cooling flows away along the inner wall of the matching barrel, and in the dismounting process of the connector and the matching barrel, the right end of the inner wall of the matching barrel is finally connected to the outer surfaces of the contact column and the sealing column in a sleeving mode; the sealing sleeve connection relation is always kept before the inner wall of the sealing ring is connected to the left end of the sealing column in a sealed and sleeved mode, and therefore the leakage-free function is achieved when the connector and the matching cylinder are disassembled and assembled.

The invention discloses a system for taking and placing a crucible in an oxygen bomb. The system comprises a fixing assembly, an oxygen bomb core pulling and placing assembly, a pressing plate assembly and a crucible taking and placing assembly. The fixing assembly is used for fixing the oxygen bomb body at a preset position. The oxygen bomb core pulling and placing assembly is used for hanging anoxygen bomb head and lifting up and down. The pressing plate assembly comprises a pressing plate and a first lifting unit, and the pressing plate is installed at the movable end of the first liftingunit and used for pressing one side of the crucible support and moving downwards. The crucible taking and placing assembly is used for taking and placing the crucible. The invention further disclosesa taking and placing method. The pick-and-place method comprises: S01, fixing the oxygen bomb body to a preset position; S02, hanging the oxygen bomb head and lifting up and down to pull out and put down the oxygen bomb core; and S03, pressing one side of the crucible support through a pressing plate, the crucible support being driven by a second lifting unit to move downwards so as to avoid an ignition rod on the oxygen bomb core, and then crucible taking and placing operation is conducted through a crucible taking and placing assembly. The system and the method have the advantages of simplicity and convenience in operation, high automation degree and the like.

The invention discloses a hanger platform for T-shaped beam maintenance and reinforcement. The hanger platform comprises a platform fixing device and a working platform. The platform fixing device isarranged on a T-shaped beam in an assembled mode. The working platform comprises a plurality of hanger sets, and all the hanger sets are arranged at intervals in the longitudinal direction of a bridge. Each hanger set comprises two vertically-arranged hangers which are arranged in a spaced mode in the transverse direction of the bridge. The tops of the hangers are detachably connected to the platform fixing device. A rectangular frame is detachably arranged between every two adjacent hanger sets, and a passage for allowing a maintainer to pass through is formed between each rectangular frame and the platform fixing device. All the rectangular frames are located in the same horizontal face. By adopting modular construction, the construction time for platform erecting is short, the construction technology is simple, operation is easy, and safety of a constructor can be ensured.

The invention relates to a lead-acid battery with a protection function applied to a complex environment in the technical field of lead-acid batteries, and the lead-acid battery comprises a device main body, the upper surface of the device main body is fixedly connected with an electrode, the upper surface of the electrode is fixedly connected with a connection sealing gasket, and the outer side of the electrode is provided with a protection sleeve. The inner surface of the upper end of the protective sleeve is movably connected with a pressing rod, the upper end of the pressing rod is fixedly connected with a pressing block, the lower end of the pressing rod is fixedly connected with a pushing sealing gasket, the upper surface of the device body is provided with a groove, the inner surface of the groove is fixedly connected with an outer protruding ring, and the edge of the groove is provided with a communicating groove. The electrode can be protected when not in use through the protective sleeve capable of moving up and down, and meanwhile, the electrode can be exposed after the protective sleeve is controlled to move upwards by pressing the pressing block, so that the electrode can be protected and used conveniently.

A novel underneath type hydraulic machine comprises a stand column frame, a lower beam frame and a movable upper beam. Lifting oil cylinders used for pushing the movable upper beam to ascend and descend are vertically and fixedly arranged at the positions, corresponding to the four end corners of the movable upper beam, of the lower beam frame correspondingly. The end corners of the bottom of the movable upper beam are connected with the corresponding lifting oil cylinders correspondingly. A movable middle beam is arranged on the stand column frame and located on the upper side of the lower beam frame, and a plurality of main power oil cylinders used for pushing the movable middle beam to ascend and descend are evenly and perpendicularly arranged at the position, located at the bottom of the movable middle beam, in the lower beam frame. An oil tank, a hydraulic pump station and a master control cabinet for controlling and driving the hydraulic machine to operate are arranged on one side of the lower beam frame. A holding mechanism used for fixing the lifting position of the movable upper beam and a guide mechanism used for guiding lifting of the movable upper beam are arranged between the movable upper beam and the stand column frame. The novel underneath type hydraulic machine is convenient to assemble, power is optimized, and efficiency is improved.

The invention provides a precision adjusting device suitable for an optical parametric oscillator. The device comprises a transmission rod, a transmission disc, a fixing piece, a lead screw and an adjusting sleeve, the adjusting sleeve is in threaded connection with the bottom, provided with a threaded part, of the lead screw, the bottom of the adjusting sleeve is rotationally connected with the fixing piece, and a guide rod is arranged at the end, located in the adjusting sleeve, of the fixing piece; the guide rod is inserted into the lead screw, inclined lines on the upper portion, providedwith inclined line parts, of the lead screw are meshed with vertical lines on the short section of the transmission disc, the transmission disc is connected with the bottom end of the transmission rod, the upper end of the transmission rod is fixedly connected with a clamp used for installing a loaded object, the adjusting sleeve is rotated, and the lead screw moves in the axis direction of the guide rod; the inclined lines on the upper portion of the lead screw can push the short-section vertical lines at the meshing position of the inclined line parts and the transmission disc so as to rotate the transmission disc, and therefore the deviation angle of the loaded object can be adjusted. According to the invention, through multiple screw-thread fit on the lead screw, the adjustment precision is amplified, and precision adjustment can be stably realized, so that the angle deviation adjustment of the loaded crystal can be stable and controllable.

The invention provides a horizontal detection mechanism and a scanning electron microscope. The horizontal detection mechanism comprises a shell, an elastic part, a pressure sensor and a triggering part; a cavity is defined in the shell; the elastic part is accommodated in the cavity; at least one end of the elastic part is provided with the pressure sensor; the triggering part is provided with afirst end and a second end which are opposite to each other; the first end is located outside the cavity; the second end is located in the cavity; and when the first end is externally stressed towardsthe second end, the second end extrudes the elastic part, so that the pressure borne by the elastic part is changed, and the pressure sensor can sense the pressure change of the elastic part.

The invention relates to the technical field of intelligent assembly, and particularly relates to a precise synthesis device for a high-precision high-elasticity micro-ultrathin metal thin film. The precise synthesis device is characterized by comprising two profiling grippers, a film moving position control device, and film grippers, wherein the two profiling grippers are provided with grooves matched with the outer contour shape and the size of a product, and the two profiling grippers form a gripping device; and the film moving position control device is used for moving the position of thefilm, so that the position is corresponding to the clamping position of the two profiling grippers, and the film grippers are used for gripping the film and winding the film around the product flexibly. The precise synthesis device has the advantages that due to the realization of the precise synthesis device, a further large breakthrough on the intelligent assembly is realized; and when the product has special requirements, complex tortoise-shaped products are all accurately assembled, so that no fingerprint contact and contact such as foreign matter on the surface of the product is realized,and the horizontal stability of the product during assembly is ensured.