10results about How to "Accurate stroke control" patented technology

The portable mayfly naiad observation collector comprises a collecting cylinder, a mounting plate and a cover cylinder, an annular interlayer with an upward opening is arranged in the side wall of the collecting barrel; a plurality of guide ropes are arranged at the bottom of the interlayer around the axis of the collecting barrel; the ends, away from the collecting cylinder, of the multiple guide ropes are connected to the edge of one side of the mounting plate, and the multiple guide ropes are parallel to one another. A sliding hole is formed in the mounting plate, and a hollow sleeve penetrating through the sliding hole is arranged at the position, at the sliding hole, of the other side of the mounting plate; an opening of the cover cylinder faces downwards, and the cover cylinder is located between the collecting cylinder and the mounting plate and arranged in the annular interlayer in a sliding mode; a guide hole is formed in the side wall of the cover cylinder in the axis direction of the cover cylinder. The guide rope penetrates through the guide hole; one end, far away from the opening, of the cover cylinder is provided with a plurality of air holes and a traction rope; the pulling rope is arranged in the sleeve in a sliding mode, and one end of the pulling rope penetrates out of the sleeve. The problems that a traditional collecting tool is complex in structure or needs a matched tool and is inconvenient to carry in field operation are solved.

This utility model discloses a hydraulic pressing device for assembling gear shafts, belonging to the field of gear shaft technology. It includes: a worktable; a U-shaped pressing plate installed on the worktable surface, with an inverted L-shaped vertical plate welded to the outer wall behind the U-shaped pressing plate; an assembly component disposed within the U-shaped pressing plate and centripetally holding a gear component; a hydraulic pressing component longitudinally installed on the inner top wall of the L-shaped vertical plate, with a shaft body pressed down at its bottom lifting end, the bottom end of the shaft body being inserted into the shaft hole of the gear component; the gear component is centripetally clamped by two symmetrically arranged arc-shaped internal gear plates on its circumference. During the pressing process of the hydraulic pressing component, the shaft body is raised and lowered for positioning by a positioning auxiliary component to prevent the shaft body from getting stuck in the shaft hole. This utility model avoids the errors caused by traditional manual adjustment, achieves precise positioning of the gear component, improves assembly efficiency, and achieves the effects of improving assembly accuracy and reducing manual labor intensity.

The invention discloses a device for assembling a special snap ring for a small sorption fitting, and the device comprises a locking mechanism, the locking mechanism comprises an upper cover fixed with an upper bottom plate through a bolt, a mounting groove is formed in an area, corresponding to the upper cover, of the upper bottom plate, a limiting block is arranged at one end of the mounting groove, and a sensing unit is fixedly connected to the upper end of the limiting block. A cylindrical hole is formed in the center area of the limiting block in the width direction, a reset shaft is inserted into the cylindrical hole, the outer wall of the reset shaft is sleeved with an elastic element, one end of the elastic element abuts against the outer wall of the limiting block, the other end of the elastic element abuts against the inner wall of the limiting end of the reset shaft, and the radius of the cross section of the limiting end of the reset shaft is larger than that of the cross section of the reset shaft. A first limiting groove is formed in the lower end face of the upper cover, and a positioning pin hole and a reset groove hole are formed in the center area of the first limiting groove in the length direction. The technical problems that the efficiency of traditional manual assembling of the small hardware clamp ring is low, semi-automatic assembling and feeding are tedious, and the cost of full-automatic assembling equipment is high are solved.

The utility model discloses a prefabricated beam board quick detachable formwork supporting device relates to prefabricated beam board quick detachable formwork technical field, including stable mechanism, the stable mechanism is provided with two, two the stable mechanism includes stable board, push board, through groove and sliding assembly, the through groove is set up in the support seat left and right sides, push board outer surface sliding connection in through groove inner wall, the stable board opposite side fixed connection in push board opposite end, sliding assembly sets up in push board opposite end. The utility model discloses a stable mechanism is set up, has solved to the support of different prefabricated beam, needs to replan the plane layout of support column, repetitive handling, positioning and adjustment work, not only has greatly increased the preparation time before construction, and reduced the construction efficiency problem.

The utility model discloses a packaging presswork cutting device capable of accurately positioning, which is characterized in that a vertical column and a packaging film guide roller are arranged above a cutting device main body, a positioning disc is arranged in the middle, a support plate and a telescopic cylinder are arranged on the rear side, an outer fixing ring and an inner fixing ring are respectively arranged on the outer side and the inner side of the positioning disc, and a cutting groove is arranged between the outer fixing ring and the inner fixing ring; an outer pressing ring and an inner pressing ring are correspondingly arranged at the bottom of the cutting plate and are in sliding connection with the cutting plate, a cutter is arranged between the outer pressing ring and the inner pressing ring and used for cutting a packaging film, a containing cavity is formed in the positioning disc, a slidable positioning block and an adsorption hole are arranged in the cavity, and a slidable pressing disc is arranged at the bottom of the cutting plate and used for fixing a product to be packaged. According to the cutting device, through multiple positioning and fixing structures, precise positioning and reliable fixing of the packaging printed matter are achieved, the cutting precision and stability are improved, and the processing quality and efficiency of the packaging printed matter are improved.

The utility model discloses a rapid metal shearing machine, which relates to the technical field of metal processing and is technically characterized by comprising a rack, a plurality of conveying rollers are rotatably arranged on the rack, the tops of the conveying rollers are positioned on the same horizontal plane, and a plurality of driving parts for driving the conveying rollers to rotate are arranged on the rack. A clamping and positioning assembly is arranged at the tail end, in the metal plate advancing direction, of the rack, a fixing frame is arranged above the clamping and positioning assembly, a metal cutting assembly is arranged on a top beam of the fixing frame, and a measuring assembly is arranged on one side of the fixing frame. The measuring assembly comprises a horizontal and straight telescopic piece, the extending direction of a movable part of the telescopic piece is the same as the advancing direction of the metal plate, a baffle is arranged on the movable part of the telescopic piece, a contact switch is arranged on the baffle in the direction facing the fixing frame, and a stroke control device used for controlling the stroke of the telescopic piece is arranged on the rack. The shearing device can quickly adjust the shearing amount and improve the precision of the shearing amount.

The present application relates to the field of pipe shaping equipment, in particular to a pipe ball passing shaping equipment, which comprises a workbench, a die frame and a shaping ball driving mechanism arranged on the workbench, an upper die is arranged on the die frame, a first driving element is arranged to drive the upper die to move up and down, a lower die is arranged below the upper die, the upper die and the lower die are combined to form a shaping cavity, the pipe is placed in the shaping cavity, a first limiting mechanism is arranged on one side of the lower die, a guide die is arranged on the other side of the lower die, a shaping ball is arranged in the guide cavity, the shaping ball driving mechanism comprises a top rod and a second driving element arranged to drive the top rod to move, a guide assembly is connected to the end of the top rod, and the second driving element drives the top rod to drive the guide assembly to push the shaping ball to pass through the inner cavity of the pipe. The pipe ball passing shaping equipment is suitable for shaping pipes of various specifications, can improve the roundness of the inner holes of pipes of different specifications, and ensures the consistency of the shaping effect of pipes of the same batch of specifications.

The application discloses a full-automatic adjusting servo stopper, which comprises a track arranged on the end beam of a discharging platform along the width direction of the discharging platform, a plurality of material stopping units arranged along the length direction of the track, any material stopping unit comprising a sliding plate arranged on the track, a transverse adjusting device for adjusting the displacement of the sliding plate on the track, a material stopping plate connected with the sliding plate through a mounting seat, a longitudinal adjusting device for adjusting the longitudinal displacement of the mounting seat on the sliding plate, wherein the material stopping plate comprises three material stopping pieces arranged along the width direction of the discharging platform, and any side material stopping piece is driven to rotate relative to the middle material stopping piece by a driving device. The transverse and longitudinal adjusting devices are used for independently controlling the positions of the material stopping plates in the discharging plane, and the multi-section adjusting structure of the material stopping plate is used for realizing the adaptation of the material stopping plates to the material hitting position and the material hitting end shape, so that the accuracy and stability of the material stopping action are effectively improved, and the production efficiency and production quality are ensured.

The utility model relates to the technical field of bearing assembly and discloses a bearing assembly device which comprises an assembly table, a supporting column at the top of the assembly table is connected with a top plate, and a pressing mechanism at the bottom of the top plate and a positioning mechanism at the top of the assembly table work cooperatively. The downward pressing mechanism controls downward pressing of a downward pressing block through an electric telescopic rod, and a groove in the bottom of the downward pressing block is matched with the bearing inner ring. A positioning seat of the positioning mechanism is provided with a positioning groove and an elastic buffer pad and used for fixing a bearing outer ring. The control box on one side of the assembling table is convenient to operate, the positioning mechanism can be flexibly detached and replaced by the fixing bases on the two sides of the positioning base through detaching bolts, and then the positioning grooves with the appropriate sizes are selected to adapt to bearings with different sizes. According to the device, mechanical assembly is realized, the assembly efficiency and precision are improved, the universality is enhanced, the operation difficulty is reduced, the production benefit is favorably improved, and the problems of low assembly efficiency, poor precision, insufficient universality and the like of an existing bearing are solved.

The utility model discloses a multifunctional intelligent walking stick, which comprises a connecting support column, a handrail connecting seat fixedly connected to the connecting support column and a mounting connecting seat mounted on the handrail connecting seat. When a user falls down and loses the ability to walk, the user does not need to rely on passers-by, and the user can automatically trigger an alarm and send location information, thereby effectively avoiding rescue delay. The multifunctional intelligent walking stick is based on the connecting support column as a support core, is matched with a movement adjusting assembly capable of flexibly adjusting universal movement wheels, and can adapt to different scene movement requirements. The multifunctional intelligent walking stick is integrated with a lighting lamp and a buzzer, and can meet the requirements of night lighting and active help-seeking functions. Compared with a traditional walking stick with a single support function, the multifunctional intelligent walking stick realizes a qualitative improvement in practicability. In terms of structural design, an arch-shaped protective shell precisely covers the transmission module, which provides physical protection against collision, dust and water, and does not hinder signal transmission. The scientific overall structural layout avoids the falling risk of a traditional walking stick caused by design defects, and the detachable power supply body is more convenient for daily maintenance and replacement.