46results about How to "Guaranteed fit clearance" patented technology

The motorcycle tail lamp base comprises the base body with sealed slot outside the base with protruding light block rib. It can be installed from inside the covering piece to outside, through setting a ring of extending light block rib to avoid the impurities inside the vehicle to effectively solve the issue of light leakage to ensure the convenience for light bulb change.

The invention discloses a full-automatic cover folding and carton sealing machine which comprises a rack assembly, a cover folding assembly and a carton sealing assembly. The folding assembly is installed on the front portion of the rack assembly and comprises a paging part, a front-back folding part and two-side folding parts, the paging part is installed on the front portion of the folding assembly, paging plates are arranged on the left side and the right side of the paging part, and the paging plates are suitable for limiting the angle between the carton left side wing and the carton right side wing; the front-back folding part is installed in the middle of the folding assembly and suitable for folding the front side wing and the rear side wing of the carton. The two-side folding part is installed on the rear portion of the folding assembly, two-side folding mechanisms are rotatably arranged on the left side and the right side of the two-side folding part, and the two-side folding mechanisms are suitable for turning over a carton left side wing and a carton right side wing; and the gluing assembly is mounted between the front and rear folding parts and the two side folding parts, and the gluing assembly is suitable for spraying hot melt glue on the front side wing and the rear side wing of the carton. The full-automatic cover folding and carton sealing machine is efficient and stable.

The invention relates to a thin-wall part precision turning machining method and a positioning clamp, in particular to a positioning clamp and a machining method of a gyroscope motor dynamic pressure air bearing rotor cover. The positioning clamp comprises a spherical surface positioning mandrel, a positioning lantern ring, an anti-vibration pad and a back supporting seat. The spherical positioning mandrel is a step shaft with center holes formed in the two end faces, and comprises a clamping section, a large thread section, a second guide cylindrical section, a spherical positioning section, a spherical table end face, a first guide cylindrical section and a small thread section from left to right in sequence. The machining method comprises the steps of first-step machining of the rotor cover, machining of a series of spherical positioning mandrels, machining of a positioning lantern ring and a back supporting seat, selection of a proper spherical positioning mandrel, turning of the rotor cover and the like. The problems that an existing machining method is poor in positioning precision and low in machining efficiency, and the concave spherical surface is crushed are solved, damage to the concave spherical surface is avoided by limiting six degrees of freedom, and the machining precision of the rotor cover is guaranteed.

The invention discloses a matching structure of a door protection plate and an inner triangular block and an assembling process of the matching structure. The matching structure comprises a door metalplate, a door guard plate, an inner triangular block and a screw, wherein a threaded hole is formed in the door metal plate, a cylindrical hole is formed in the middle of the upper end of the door guard, the screw penetrates through the cylindrical hole and is screwed in the threaded hole so as to enable the door guard plate to be tightly matched with the door metal plate, a cross-shaped positioning hole is formed beside the cylindrical hole, a first clamping groove and a second clamping groove are formed in the two sides of the upper end of the door guard plate, a third clamping groove is formed in the side edge of the door guard plate, a cross-shaped positioning pin is arranged in the middle of the lower end of the inner triangular block, a first inserting buckle and a second insertingbuckle are arranged on the two sides of the cross-shaped positioning pin respectively, a third inserting buckle is arranged on the side edge of the lower end of the inner triangular block, the inner triangular block is connected with the door guard plate in a matched mode, the cross-shaped positioning pin is inserted into the cross-shaped positioning hole for positioning, the first inserting buckle is inserted into the first clamping groove for clamping, the second inserting buckle is inserted into the second clamping groove for clamping, the third inserting buckle is inserted into the third clamping groove for clamping, and the position degree of the door guard plate in the Y direction is ensured; and the position degree of the inner triangular block in the X direction or the Z directionis ensured.

The invention provides a rotating cylinder piston compressor. The rotating cylinder piston compressor comprises an air cylinder sleeve (1), an air cylinder (2) arranged in the air cylinder sleeve (1) and a piston (3); a round piston hole (22) penetrating the air cylinder (2) is arranged on the air cylinder (2) in a manner of being perpendicular to the axis direction of the air cylinder (2), and the piston (3) is arranged in the piston hole (22) in a manner of being matched in shape; a first groove (21) is formed in the inner wall of the piston hole in the axial direction of the piston hole, and a guide limiting piece (4) is arranged on the side wall of the piston (3); and when the piston (3) and the air cylinder (2) are assembled, the guide limiting piece (4) is assembled in the first groove (21) in a sliding manner. By means of the rotating cylinder piston compressor, autoroatation of the piston can be prevented, furthermore, interference even air cylinder collision between the head of the piston and the inner circle of the air cylinder can be prevented from occurring, a fit clearance between the piston and the piston sleeve can be effectively guaranteed, the assembling performance of the compressor is improved accordingly, and the efficiency of the compressor is improved.

The invention discloses a method and equipment thereof for buckling-riveting an outer sleeve of a push-pull flexible shaft, which are used for automobiles or engineering machinery and the like. Through the method and the equipment, an inner hole of an inner lining tube can be effectively prevented from deformation, the tensile force bearing capacity of a pipe joint is improved, and the service life of the push-pull flexible shaft is prolonged. The method comprises the following steps of: inserting the inner lining tube of a pressure hose inserted into a sleeve joint and placing the sleeve joint onto a buckling-riveting mold; starting a hydraulic system, making an external mold axially move to force an elastic mold pressing element set, so that mold pressing elements are radically retracted to rivet and press the sleeve joint; and changing a direction, making a piston rod of an oil cylinder drive the external mold to reversely move, expanding the elastic mold pressing element set and pulling a core rod out. The buckling-riveting equipment comprises the hydraulic system, the buckling-riveting mold, a stander and the like, wherein the buckling-riveting mold is provided with the external mold with an inner taper hole and the elastic mold pressing sheet set formed into an outer conical surface; springs are arranged between every two mold sleeves; the elastic mold pressing element set is in contact with a stopper; the piston rod of the oil cylinder is connected with the external mold; and a core pulling device comprising a cylinder and the core rod is arranged axially.

The invention discloses a ground wire assembly comprising a main rod body and an auxiliary rod body which are arranged in parallel. The top end of the main rod body is provided with a fixing head restraint matched with a wiring terminal. The top end of the auxiliary rod body is provided with a movable head restraint clamped and matched with the fixing head restraint. A guiding aperture is arranged in the fixing head restraint along an axial direction of the main rod body. The tail end of the movable head restraint is movably inserted in the guiding aperture and is in hinged connection with the auxiliary rod body. The middle portion of the main rod body is provided with an adjusting gear in a rotatable mode. The axis of the adjusting gear is perpendicular to the axis of the main rod body. A matched surface between the tail end of the auxiliary rod body and the main rod body is provided with a tooth bar engaged with the adjusting gear in a matched mode. The connection structure of the ground wire assembly is safe and reliable, and the operation process is simple to perform.

The invention discloses a laser repair method for a hub tenon tooth of a heavy-duty gas turbine. The laser repair method comprises the following steps: 1, detecting damage situations; 2, determining maintenance contents; 3, formulating a process scheme; 4, pre-treating a damaged part, detecting a tongue-and-groove damage surface, and determining the maintenance process sequence; 5, protecting a non-laser cladding surface; 6, performing laser cladding processing; and 7, performing examination after repair. The process parameters of laser cladding and the ratio of all element ingredients in a powder material are optimally designed to clad crack-free and impurity-free compactly-textured wear-resistant alloy powder in the hub tenon tooth tongue-and-groove of the heavy-duty gas turbine, so that the service life of the heavy-duty gas turbine is prolonged.

The invention discloses a stator core lamination welding mold. The stator core includes a stator upper ring, a stator lower ring, a stator punch and a plurality of stator pull plates, and the stator punch is arranged between the stator upper ring and the stator lower ring. , a plurality of stator pull plates are evenly distributed on the outer periphery of the stator punching sheet, the welding mold includes an upper pressing plate, a lower pressing plate, an inner tube and an outer tire, the inner tube and the outer tire are arranged between the upper pressing plate and the lower pressing plate, and the outer tire includes a plurality of fan-shaped blocks, the fan-shaped blocks The number is equal to the number of stator pull plates, the inner surface and outer surface of the sector block are arc-shaped, multiple sector blocks are evenly arranged along the outer circumference of the inner tube, and the outer circumference of the plurality of sector blocks is provided with limit pieces, the outer surface of the inner tube is The tapered surface of the inner tube, the inner surface of the sector block is the tapered surface of the outer tire matched with the tapered surface of the inner tube, and the outer surface of the sector block is matched with the inner surface of the stator punch. The invention only applies anti-deformation to the welding deformation position of the stator pull plate, thereby effectively offsetting the welding deformation and ensuring the inner roundness of the stator iron core.

The invention relates to a precision turning processing method and a positioning fixture for thin-walled parts, in particular to a positioning fixture and a processing method for a rotor cover of a dynamic pressure air bearing of a gyro motor. The positioning fixture includes a spherical positioning mandrel, a positioning collar, a vibration damping pad, and a back-facing support seat. The spherical positioning mandrel is a stepped shaft with top holes provided on both ends, and includes a clamping section, a large thread section, a second guide cylinder section, a spherical positioning section, a ball table end face, and a first guide cylinder arranged in sequence from left to right. segments and small thread segments. The processing method includes the steps of the first step processing of the rotor cover, processing a series of spherical positioning mandrels, processing the positioning collar and the back support seat, selecting a suitable spherical positioning mandrel, and turning the rotor cover. The invention solves the problems of poor positioning accuracy, low processing efficiency, and crushing of the concave spherical surface in the existing processing methods, avoids the damage of the concave spherical surface by limiting 6 degrees of freedom, and ensures the processing accuracy of the rotor cover.

The motorcycle tail lamp base comprises the base body with sealed slot outside the base with protruding light block rib. It can be installed from inside the covering piece to outside, through setting a ring of extending light block rib to avoid the impurities inside the vehicle to effectively solve the issue of light leakage to ensure the convenience for light bulb change.

The invention relates to sliding support set on the notch of vehicle lighting fitting. Its features are that the section of the pin post is a square of which two opposite angles are replaced by two inscribed circular arc; its bottom is set the first rectangle baffle; its top end is set the second baffle of which width is bigger than the first one; both their lengths are more than the width; two wing type diffuser vanes are set at the inscribed circular arc and turned up toward outside. The invention has the advantages of simple structure, convenient adjustment, reliable performance, suiting for various lighting fittings.

The invention provides a motor stator, a motor and a compressor, the motor stator comprises a plurality of punching sheets which are overlapped and buckled, the edge of each punching sheet is provided with n grooves at intervals, and the opening of each groove faces the outer side of the motor stator, so that a non-contact gap is formed between the motor stator and a motor shell; and a buckling point is correspondingly arranged on the inner side of each groove. The U-shaped groove is formed in the outer circle of the iron core of the motor stator, so that a non-contact gap is formed between the iron core and the motor shell, that is, the motor shell is not in hard contact with the buckling point on the punching sheet through a tangible structure, and therefore extrusion stress generated when the motor stator and the motor shell are assembled through a hot jacket cannot be transmitted to the buckling point, and the reliability of the motor stator is improved. Therefore, the buckling points are not loosened or deformed, the stability of the overall structure of the stator is ensured, and the fit clearance between the inner circle of the stator core and the rotor is kept.

The invention provides a radiating crankcase side cover of a motorcycle motor. The radiating crankcase side cover comprises a side cover body; and radiating fins are arranged on the external surface of the side cover body. By the arrangement of the fins, radiating area of crankcase side cover is increased, heat of the crankcase can be rapidly radiated, so that deterioration of lubricating oil in the crankcase is avoided and fit clearance between driving pieces is maintained in a normal range; and further structure is simple, and production is convenient.

The invention discloses an inclined disk type small seed small-amount seed sowing device. The inclined disk type small seed small-amount seed sowing device comprises a seeding box, a seed filling room case, a seed entering quantity adjusting plate, a seed filling disk, a seed sowing device shell, a seed sowing disk and a seed sowing device shaft. The seed sowing device is installed on a seed sowing machine in a mode of inclining 30 to 60 degrees. The structures of the seed filling disk and the seed sowing disk are utilized, the whole seed sowing process is divided into four steps of seed filling, seed cleaning, seed inputting and seed sowing, the seeds are guaranteed to be sowed in the lowest position, the seed sowing height is lowered, the time on seed sowing is shortened, and seeds per bunch and intervals can be guaranteed effectively; according to the inclined disk type small grain small-amount seed sowing device, seed filling is conducted softly and automatically depending on the gravity, seed cleaning is conducted softly and automatically by utilizing the gravity, a seed cleaning brush is arranged, few seeds clamped in seed filling holes can be brushed down, and seed clamping and seed damaging are avoided; the seed filling disk and the seed sowing disk are exquisite in structure and are both provided with two bosses, positioning with rolling bearings is reliable, fit clearance with the seed sowing device shell can be guaranteed, friction with the seed sowing device shell is avoided, and the service life of the seed sowing device is prolonged greatly.

The invention discloses a deep well tube pump for raw oil exploration in oil field. Through adopting the composite structure of a flexible seal plunger piston and a hard seal plunger piston, adding a quick-opening valve under an inlet valve and a delivery valve, designing a biased valve on the upper part of a pump barrel, etc. the invention is characterized by low leakage, high filling degree, long effective stroke, long high yielding period and service life, stronger function of air prevention and sand prevention, can effectively improve oil well yield and is applicable to common explorationof general oil wells and oil extraction of worse well conditions such as gassy oil well, sandy oil well and so on.