35results about How to "Meet assembly needs" patented technology

The application discloses a groove cutter for machining a turbocharger shell annular groove and a turbocharger shell, the groove cutter comprising a first cutter body, a second cutter body and a cutting edge. The stable clamping of the first cutter body lays a foundation for machining precision, avoiding machining errors caused by clamping deviation; the design of the chip removal angle A and the support angle B of the second cutter body not only solves the problem of chip removal, but also enhances the strength of the groove cutter, reduces cutting heat and groove cutter deformation; the cutting edge comprises a straight edge section and a semicircular edge, which controls the cutting contact area, reduces the cutting force and vibration, and protects the edge. The joint action of these designs not only makes the machining precision of the annular groove meet the assembly and use requirements of the shell, but also improves the service life of the groove cutter, reduces the number and time of tool replacement, reduces the machining cost, improves the overall machining efficiency, and fully meets the batch production requirements of the new energy automobile turbocharger shell.

The invention discloses a height-adjustable pipeline suite and a pipeline. The pipeline suite comprises a first half suite and a second half suite, an integrally formed shaft rod is arranged on the outer wall of the first half sleeve piece; a rotatable clamping plate is connected to the shaft rod, and a plurality of saw-tooth-shaped buckles are integrally formed in the middle of the inner side face of the clamping plate; an assembly clamping groove is formed in the outer wall of the connecting position of the second half sleeve piece, and a plurality of buckle grooves are formed in the outer wall of the second half sleeve piece. The outer wall of the second half sleeve piece is attached to the inner wall of the first half sleeve piece to be combined, the buckle protruding strips are clamped into the assembling clamping grooves to be positioned, and the straight edges of the sawtooth-shaped buckles are buckled with the buckle grooves. The pipeline comprises a plurality of pipe bodies, the ends of the adjacent pipe bodies are connected through the pipeline suite, the structural arrangement is reasonable, the connecting effectiveness of the two structures can be improved, the assembling convenience is improved, the buckling position of the two structures can be adjusted according to different sizes, the connecting requirements of the pipe bodies of different sizes can be met, and the practicability is high. And the application range is widened.

The utility model discloses large -scale oil cylinder piston and piston rod's locking assembly fixture, including assembly drive arrangement, and assembly drive arrangement is provided with the central shaft, and the outside rotation cooperation of central shaft has the rotary element, and the cooperation end of rotary element is used for installing the piston, and the cooperation hole of central shaft can be inserted to the assembly of the assembly end of piston rod, and the cooperation hole is coaxial arrangement along the central axis of piston rod, when assembling, the vertical placement of piston rod makes its assembly end end face upward, and the upper coaxial sleeve of piston rod installs the piston, and the cooperation hole can form the circumferential limiting force and vertical support force of around its axis to the inserted part of central shaft, when the rotary element rotates relative to central shaft, can drive the rotation of piston relative to piston rod, and makes the assembly hole of piston can be screwed with the external thread of piston rod assembly end and is locked together, the utility model discloses can realize more accurate and smooth locking assembly with the aid of the dead weight of piston and piston rod, and then improves the assembly efficiency.

This invention relates to the technical field of industrial automated mechanical assembly, and more particularly to an auxiliary device for assembling a smart alarm clock. The device includes a frame with a worktable having an alarm clock placement slot for positioning the smart alarm clock housing; a translation component mounted on the frame for driving a locking unit to switch between a locking position and a pick-and-place position; a lifting component mounted on the translation component for driving the locking unit to approach or move away from the alarm clock housing; and a rotation drive component mounted on the lifting component for outputting rotational power. This invention uses a stepped arc-shaped adjustment plate to progressively change the spring preload, adjusting the locking force in stages to achieve multi-level adjustable torque. Operators can manually rotate the adjustment ring to quickly adapt to the locking requirements of different alarm clock models, solving the problem of inflexible adjustment of existing single-level fixed torque and significantly improving the versatility and adaptability of the equipment.

The invention discloses a roof reticulated shell splicing structure and a construction method, and belongs to the technical field related to building construction technologies, the roof reticulated shell splicing structure comprises a plurality of drum joints, and six butt joint assemblies are fixed to the outer portions of the drum joints at equal intervals; the butt joint assembly comprises a connecting rod, an inner cylinder is fixed in the connecting rod, four rows of telescopic springs are fixed in the inner cylinder, the outer end of each row of telescopic springs is fixedly connected with an extrusion block, and the extrusion blocks protrude out of the connecting rod; finite element analysis software is used for carrying out topological optimization on the tail plate so as to meet the preset strength and rigidity requirements under the target mold clamping force, an integrated reinforcing rib network is designed, and meanwhile, in a casting cavity at a pull rod penetrating hole, a plurality of connecting rods are arranged in the casting cavity at the pull rod penetrating hole. And a structure used for presetting the high-strength alloy steel sleeve is designed, so that the problem of complex reticulated shell assembly is solved, and the comprehensive construction risk is reduced.

The utility model discloses an emergency unlocking device of drum washing machine and drum washing machine, wherein the drum washing machine comprises a washing machine box body, a self-throwing decoration piece is installed at the front middle position of the washing machine box body, a door lock pull ring is installed in the self-throwing decoration piece, a through hole is formed on the self-throwing decoration piece and at the position above the door lock pull ring, a door lock assembly is installed on the inner side surface of the washing machine box body and above the self-throwing decoration piece, the door lock assembly comprises a microswitch, a fine rope is connected to one end of the microswitch, and the other end of the fine rope is wound on the door lock pull ring after passing through the through hole. The emergency unlocking device of the drum washing machine of the utility model is installed in the self-throwing decoration piece, which is convenient for user operation and does not affect the overall appearance.

This utility model discloses a Z-shaped friction damping column structure with enhanced seismic performance, comprising a Z-shaped friction damping column body, which includes columns on both sides and Z-shaped crossbars between the columns. The top and bottom of the Z-shaped crossbars between the columns are respectively provided with top friction damping diagonal braces and bottom friction damping crossbars. When an earthquake generates a load on the rack in the direction perpendicular to the aisle, and the axial force caused on the base and the bottom and top diagonal braces exceeds the preset friction force, the damper will begin to slide, absorbing or dissipating some of the seismic energy in the form of friction damping. This reduces the probability of damage to rack structural components and goods slippage under seismic conditions, thereby enhancing the overall seismic performance of the industrial rack.

The application provides a device for automatically assembling ignition lead of initiating explosive, which comprises rotating positioning mechanism, lead pushing mechanism, body pushing mechanism and lead grabbing mechanism. The rotating positioning mechanism is used for placing initiating explosive cabin and rotating according to the set angle. The lead pushing mechanism comprises soft claws and soft claw support, and the soft claw support is circular ring structure. The parallel gas claws of the body pushing mechanism pass through the circular ring to clamp the body of initiating explosive and displace along the axial direction. The soft claws are distributed on the circumference of the soft claw support and can clamp the connector of the end of the lead of initiating explosive. The lead grabbing mechanism is installed at one end of the pull rod and is placed in the cabin of initiating explosive. The pull power source controls the up-down movement and positioning of the pull rod. The rubber gas claw of the lead grabbing mechanism passes through the through hole of the cabin wall and extends out of the cabin. The connector of the end of the lead is clamped and pulled into the cabin, and is lifted to the end surface of the cabin with the pull rod. The device can reliably protect the ignition lead in the automatic assembly link.

The utility model discloses a light module with pull ring structure, and the pull ring structure is movably arranged on the shell along the length direction of the shell, comprising the long arm of setting in the width direction of the shell on both sides, and the connecting portion that links to two groups long arms, the first combination position that is away from long arm is equipped with on the connecting portion to at least one group long arm, and the first elastic arm is formed with on the connecting portion from the first combination position to the direction of approaching long arm, the second elastic arm is formed with from the end of first elastic arm to the height direction of the shell one side bending extension, the stop portion is formed with from the end of second elastic arm to the opposite inner side of two groups long arms bending extension, and the stop groove is equipped with on the outer wall of the shell to the stop portion, and the end of stop portion stretches into the stop groove. The utility model can realize the reset after the movement of pull ring structure, and need not use spring, simplifies the assembly step of overall structure, saves time and labour, and the assembly efficiency of light module is high, and effectively satisfies the assembly demand of light module.

The flexible long and thin rubber strip posture arranging mechanism comprises a bottom plate, a first adjusting assembly and a second adjusting assembly, wherein the first adjusting assembly and the second adjusting assembly are installed on the two sides of the top of the bottom plate; a reference positioning assembly is arranged at the top of the bottom plate and arranged between the first adjusting assembly and the second adjusting assembly. A first positioning and arranging assembly is arranged at the top of the first adjusting assembly, a second positioning and arranging assembly is arranged at the top of the second adjusting assembly, and the first positioning and arranging assembly and the second positioning and arranging assembly are symmetrically arranged at the two ends of the reference positioning assembly. The first adjusting assembly, the second adjusting assembly and the reference positioning assembly are used for clamping a rubber strip, and the posture of the rubber strip is adjusted through the first adjusting assembly and the second adjusting assembly. Through cooperation of X / Y-direction servo driving adjustment and the 360-degree rotating table, multi-dimensional accurate positioning is realized, the attitude adjustment precision is improved, and the requirements of precise assembly and detection are met, so that automatic attitude arrangement is realized, and the mounting success rate is improved.

This utility model discloses a novel stamped and welded rear subframe, relating to the technical field of automotive chassis structural components. It includes a front tube beam, a rear control arm sleeve, and a suspension sleeve. The front tube beam is welded to the left longitudinal beam, right longitudinal beam, front plate of the rear crossbeam, and rear plate of the rear crossbeam to form a frame structure. At the corners of the frame, left front beam reinforcement plates, right front beam reinforcement plates, left rear beam front reinforcement plates, right rear beam front reinforcement plates, left rear beam rear reinforcement plates, and right rear beam rear reinforcement plates are added. Side reinforcement plates are provided on the outer side of the rear control arm sleeve. These side reinforcement plates adopt a triangular structure and are welded to the front plate of the rear crossbeam, the rear plate of the rear crossbeam, and the right longitudinal beam. The side reinforcement plates extend and are welded onto the right longitudinal beam. The suspension sleeve adopts a flanged structure. This novel stamped and welded rear subframe, employing a novel stamped and welded structure, optimizes the problem of local stress concentration in the mounting brackets when the subframe is subjected to alternating loads, avoiding subframe cracking and failure.

The application provides a kind of multi-phase pole unit independent breaking intelligent measurement switch, it is related to power equipment technical field, including shell, positioning bolt on shell screw connection, and a plurality of phase pole units are arranged in shell, further comprising: connecting block, it is worn in wiring hole, one end of connecting block is provided with wire hole that penetrates the end surface;Limiting component, it is installed on connecting block, part of structure of limiting component extends into wire hole and abuts to the surface of wire worn in wire hole;Positioning assembly, it is vertically slidingly installed in sliding slot that is opened in connecting block, sliding slot penetrates connecting block along vertical direction and is communicated with wire hole, the bottom end surface of positioning assembly is in contact with the wire body worn in wire hole;When connecting block is worn in wiring hole, positioning assembly is located directly below positioning bolt.The application realizes stable electrical connection of wire body and terminal board, axial positioning of connecting block in wiring hole and independent assembly of each phase pole unit wiring structure.

The application discloses a small-distortion large-view-field high-definition lens based on Q- TYPE aspheric surface, which comprises first lens elements, second lens elements,..., tenth lens elements and an aperture diaphragm arranged in sequence from left to right, the aperture diaphragm is arranged between the fifth lens element and the sixth lens element, two aspheric surfaces are adopted in total, and the front surface of the first lens element and the front surface of the tenth lens element are both Q- type aspheric surfaces. The application applies the novel Q- type aspheric surface to the design of the wide-angle lens, reduces the weight and processing cost of the lens, realizes small distortion, a large aperture and high pixels, strictly limits the structural parameters of the lens elements, finally realizes the size requirements of a long back intercept, a short total length of the system and a small first surface lens, so as to meet the assembly requirements, improves the processing and detection precision to a certain extent due to the excellent characteristics of the Q- type, and improves the optimization efficiency.

The utility model discloses a rear air spring assembly positioning structure, including the rotation cover and rear air spring main body that can rotate oppositely, the rotation cover is detachable fixed with rear air spring main body through at least one positioning pin, and the positioning pin one end can be inserted into the rotation cover circumference, and the positioning pin other end can be inserted into the air cock on rear air spring main body. In the utility model, through the setting of positioning pin, the positioning pin one end can be matched with the rotation cover's circumference gap, and the other end of positioning pin is inserted with the air cock, thereby can realize the relative fixation of rotation cover and rear air spring main body, guarantees the relative fixation of the upper installation mouth on the rotation cover and rear air spring main body upper and lower installation mouth when rear air spring assembly is assembled with whole vehicle, thereby has met the assembly demand of rear air spring assembly and whole vehicle.

This application discloses a tire mold, belonging to the field of tire mold technology. The tire mold includes: a base and a tread pattern shell. The base is provided with multiple positioning elements; the tread pattern shell is provided with a positioning groove, and the tread pattern shell is installed on the positioning elements. A flow guiding gap is formed between the tread pattern shell, the positioning elements, and the base. The flow guiding gap includes a first gap. The top surface of the positioning element abuts against the bottom wall of the positioning groove, and a first gap is formed between the tread pattern shell and the mounting surface. The base is provided with a first exhaust channel, and the positioning elements are provided with a second exhaust channel. The first exhaust channel and the second exhaust channel are connected, and the flow guiding gap is connected to the second exhaust channel. The tread pattern shell includes an arc-shaped transition section, which extends from the starting position to the side where the positioning groove is located. The tangent of the arc-shaped transition section at the starting position has an angle α with a preset direction, and the value range of α is: 0°≤α≤60°. This solves the technical problems of inconvenient tread pattern replacement and easy clogging of the exhaust structure in existing tire molds.

The utility model discloses a kind of electronic product assembling equipment facilitating clamping, it is related to electronic product assembling equipment technical field, including equipment base and control cabinet, the control cabinet is installed in equipment base right side, support frame is fixedly installed on the left and right sides of equipment base upper surface rear side, and support frame between fixedly installed with sliding seat, the mounting rack is connected and installed in the front side of sliding seat by pneumatic cylinder, and mounting rack below is provided with assembling equipment group, the left and right sides of equipment base upper surface are provided with air slot, and vertical frame is slidably connected in air slot, the vertical frame is slidably connected with clamping box on the side close to assembling equipment group, and clamping plate is slidably connected in clamping box bottom, and clamping box rear side is provided with suction cup. The electronic product assembling equipment facilitating clamping of this solves the problem that traditional equipment is poor in versatility, clamping precision is low, can be adapted to a variety of electronic products, clamping positioning error is reduced, assembly efficiency is improved, and it is suitable for batch assembly production of electronic product.

The utility model discloses a turntable screw locking machine. A carrier is arranged on a turntable; the driving device is used for driving the turntable to rotate around the own central axis; the transfer driving mechanism is used for driving the adsorption rotating assembly to controllably move to the position above the carrier or away from the carrier; the adsorption rotating assembly comprises a seat body, an adsorption head, a rotating rod and a driver; the adsorption head slides up and down relative to the seat body and has a first stroke; an adsorption surface is arranged on the bottom surface of the adsorption head, and a negative pressure channel extending up and down is arranged in the adsorption head; air holes are formed in the adsorption surface at the lower end of the negative pressure channel; the rotating rod is movably inserted into the negative pressure channel, and the lower end forms a bit end; the rotating rod is in clearance fit connection with the top end of the negative pressure channel; the driver is used for driving the rotating rod to rotate; the up-down driving mechanism is used for driving the base to move up and down. The screw assembling device can achieve continuous operation of screw assembling, reduces manual participation, is high in screw assembling efficiency, saves time and labor, and effectively meets the screw assembling requirement.

The utility model relates to dish washer technical field discloses dish washer, including washing system and heat exchange system, washing system includes water tank and washing pump, and water tank and washing pump intercommunication, heat exchange system includes working medium compression unit and refrigerant circulation pipeline, working medium compression unit includes air inlet and exhaust port, refrigerant circulation pipeline includes heating pipe and cooling pipe, heating pipe is located in water tank, and one end communicates with the exhaust port of working medium compression unit, and the other end communicates with cooling pipe, cooling pipe surrounds and sets up in the outer periphery of washing pump, and communicates with the air inlet of working medium compression unit, the utility model utilizes the refrigerant of higher temperature to heat the washing water in water tank, and the pump body is cooled with the help of the refrigerant of temperature reduction, reaches the high -efficient heat dissipation of pump body, and the both are synchronous, not only satisfy the requirement to water temperature in the washing process, guarantee the normal stable operation of washing pump, but also improved the comprehensive utilization of energy, reduced overall energy consumption, realized the dual goal of energy -conserving and high -efficient operation.

The utility model relates to door and window technical field, concretely relates to a kind of card slot type heat insulation strip and its broken bridge aluminum profile, it includes first profile, second profile, third profile, fourth profile, upper heat insulation strip, lower heat insulation strip, soundproof cotton, sealing rubber strip and the like component.Heat insulation strip adopts card slot type design, main part is equipped with reinforcing rib, surface is coated with weatherable coating, and it is realized convenient replacement by modular structure;Sealing rubber strip is used in conjunction with soundproof cotton, and improves sealing performance and heat insulation effect.The application can significantly improve profile connection stability, enhance the replaceability of heat insulation strip, and optimize the sealing performance, suitable for building door and window field, with the advantages of high efficiency, stability and easy maintenance.

The utility model provides a deburring device for taper gasket processing relates to taper gasket production and processing field, the utility model discloses a grinding machine and polishing belt, the utility model discloses a cleaning device is set up, in the polishing process, the fan on the support is started, makes it to the inside of the duct support and dust cover inhale, makes its inside form negative pressure state, inhales the burr scrapes attached on the polishing belt into the dust cover, then by the duct support and the fan inside last by the export place and is discharged, enters the cloth bag and is collected, also starts the auxiliary mechanism and carries out further cleaning processing simultaneously, in this way can effectively remove the burr on the surface of taper gasket, guarantees the taper gasket surface precision to satisfy the assembly demand, can also avoid the polishing ability weakening caused by the roughness of polishing belt surface drop, reduces the situation that needs frequent shutdown replacement because of polishing belt failure, maintains production continuity, improves processing efficiency, reduces burr residue, surface scratch and secondary scratch quality problem such as simultaneously, reduces the unqualified product rate.

The utility model belongs to the technical field of drivers, and particularly relates to a 180-degree driver which comprises a shell, a transmission assembly fixed on the shell and a sliding connecting plate, the sliding connecting plate slides in a reciprocating mode along a sliding limiting space formed by the shell and the transmission assembly, the two ends of the sliding connecting plate are respectively provided with a connecting end, and the connecting ends are used for being connected with a transmission rod. The transmission assembly is used for driving the sliding connecting plate to slide in a reciprocating mode, a limiting shifting fork assembly is arranged on the shell and comprises a shifting fork sliding plate and a shifting fork piece connected to the shifting fork sliding plate, a sliding limiting groove for the shifting fork sliding plate to move is formed in the shell, and a shell notch for the shifting fork piece to move is formed in the corresponding position of the shell. According to the transmission device with the safety structure, standardized structural design is achieved, a small standard part is formed, the assembly requirements of doors and windows of different specifications can be met, in addition, the limiting shifting fork assembly is integrated on the shell, safety is improved, and a transmission device standard part with the safety structure is formed.

This utility model relates to a door ring structure, including a sill beam and a mounting bracket. The sill beam includes an outer sill beam plate, an upper sill beam plate bent inward from the upper edge of the outer sill beam plate, a lower sill beam plate bent inward from the lower edge of the outer sill beam plate, and a lower flange bent downward from the inner edge of the lower sill beam plate. The mounting bracket includes a lower bracket plate spaced below the lower sill beam plate, an outer bracket plate bent upward from the outer edge of the lower bracket plate, and a first overlapping edge bent downward from the inner edge of the lower bracket plate. The first overlapping edge overlaps the lower flange of the sill beam, and the outer bracket plate overlaps the outer sill beam plate. Positioning holes are provided on the lower bracket plate. This utility model also proposes a vehicle. This utility model can meet the assembly requirements of the door ring structure and the clamp, and helps to reduce the manufacturing difficulty of the door ring structure.

This utility model relates to the technical field of flow strips, and in particular to a bearing flow strip with an optimized assembly structure. It includes a support rod with an opening on one side wall extending a predetermined depth towards the axis of the support rod to form a support groove. A support assembly is embedded within the support groove, and at least two bearing units are rotatably connected to the support assembly, allowing external materials to be conveyed through the bearing units. The support assembly has two symmetrically arranged sets of support units, which are positioned opposite each other, with the bearing units installed between the two sets of support units. End caps are also provided at both ends of the support rod, fixed to the support rod to limit the movement of the support assembly. This utility model's bearing flow strip is highly efficient to assemble, has strong load-bearing capacity, and a stable structure. Its support and installation design is reasonable, its standardized production reduces costs, and its optimized connection and end cap installation facilitate external connection, thus improving overall performance and efficiency.

The utility model relates to the technical field of vanadium redox flow galvanic piles, in particular to a vanadium redox flow galvanic pile assembling system which comprises a bottom plate, a pressing mechanism, an assembling frame and a controller, the pressing mechanism is composed of a first linear driving unit and supporting frames, the multiple supporting frames are perpendicularly arranged on the bottom plate and form a placement position of the assembly frame, and the first linear driving unit is arranged at the top of the supporting frames; a galvanic pile placing position is arranged in the assembly frame, a carrier plate mechanism is arranged at the bottom of the galvanic pile placing position, the carrier plate mechanism is composed of an elastic supporting assembly and a second linear driving unit, the second linear driving unit is arranged below the elastic supporting assembly, and the output end of the second linear driving unit is connected with the elastic supporting assembly; a pressure sensor is arranged in the electric pile placing position, the pressure sensor is electrically connected with a controller, and the controller is electrically connected with the first linear driving unit and the second linear driving unit. According to the utility model, the stability of the galvanic pile can be ensured, the galvanic pile is prevented from shifting, and the assembly precision of the galvanic pile is improved.

The utility model provides a steel structure bridge construction edge protection guardrail which comprises a main connecting seat and a guardrail rod body assembled on the main connecting seat, the main connecting seat comprises a first connecting plate and a second connecting plate which are vertically arranged, and a locking bolt is arranged on the second connecting plate; the inner supporting plate is connected to the inner right-angle face, and the locking plate slides on the inner supporting plate; a clamping area is formed between the second connecting plate and the inner supporting plate, the main connecting base is connected with the steel structure bridge in a clamped mode with the help of the locking bolt and the inner supporting plate, and when the main connecting base is clamped to the steel structure bridge, the locking plate acts on the steel structure bridge through movement of the sliding frame. The main connecting seat and the locking plate provided by the utility model can be converted to meet the assembly requirement of a steel box beam or a composite beam, so that the application range of equipment is widened.

This invention discloses a flexible assembly fixture and method for aircraft winglets, comprising: a robot and an end effector, a fixture frame, positioning pins, positioning-clamping components, an interface plate, and a storage rack for the positioning-clamping components. The robot is used for automatic reconfiguration of the fixture; the robot's end effector is used for installing and removing the positioning-clamping components; the fixture frame is welded from columns and beams, with threaded holes distributed on each column and beam for mounting components; the positioning pins are installed on the fixture frame through the threaded holes; the positioning-clamping components are installed on the fixture frame through the interface plate to position and clamp the winglets; the interface plate is installed on the main fixture frame through the threaded holes; unused positioning-clamping components can be placed in its storage rack. This invention has the advantages of intelligent reconfigurability, high automation, adaptive support, and stable clamping, and is suitable for the assembly needs of various winglet specifications.

The utility model discloses an ultrathin magnetic shaft type hinge which comprises a fixing seat, a supporting seat, a supporting frame, a base, a bottom piece, an adjusting core block, a left cover position adjusting screw rod, a right cover position adjusting screw rod, a damping structure, a powerful magnetic block and a rotating shaft. A protruding part is fixed to the side edge of the supporting base, an adjusting cavity is formed in the protruding part, and a vertical kidney-shaped groove is formed in the protruding part. The support frame comprises a transverse panel and a vertical panel which are vertically arranged; the supporting base is connected to the vertical panel through a screw located in the vertical kidney-shaped groove. The bottom piece and the damping structure are located in the base. The transverse panel is arranged on the surface of the bottom piece. And the strong magnetic blocks are respectively embedded on the fixed seat and the supporting seat. According to the utility model, the structural arrangement is reasonable, additional arrangement of mounting slotted holes on the side plates of the cabinet body is not needed, the convenience and effectiveness of assembly are improved, the left-right position adjustment of the supporting seat relative to the base can be realized, the assembly requirements under different conditions can be met, and the application range and the mounting convenience are improved.

The utility model discloses a manual tool for press fitting of a combined speed reducer and a motor and screwing of screws. The manual tool comprises a front rotating disc assembly, a rear rotating disc assembly and a bottom plate. The front rotating disc assembly is fixed to one end of the bottom plate, the rear rotating disc assembly is arranged on the bottom plate through a sliding structure, and a speed reducer fixing block of the front rotating disc assembly corresponds to a motor fixing block of the rear rotating disc assembly in position. A clamping structure is arranged at the other end of the bottom plate, the adjusting end of the clamping structure is connected with the rear rotating disc assembly, and the clamping structure drives the rear rotating disc assembly to move. The tool provided by the utility model can be suitable for various types of gear motors, and a user can flexibly meet the assembly requirements of different types of motors by replacing the speed reducer and the motor fixing block, so that the universality of the tool is greatly improved.

The application provides a segmented cylinder connecting method and system of a marine engine and the marine engine, relates to the field of marine engine manufacturing, and aims to solve the problems of local stress concentration on the end face or insufficient pre-tightening during the fastening process of the connecting bolts of the existing super-large segmented cylinder body. The application introduces end face processing and accurate positioning of the pin hole, marks the position after the pre-tightening of the bolts, applies a controllable traction force to the fastening wrench by using a travelling crane until the bolts are driven to the set position by using a force sensor, converts the traditional single torque control into the cooperative control of the traction force and the rotating position, better ensures the consistency of the fastening states of all the connecting bolts of the same group of adjacent cylinder bodies, makes the pre-tightening force distribution of the connecting end face balanced and the stress uniform, and effectively reduces the risk of micro deformation caused by local stress concentration, thereby meeting the requirements of the segmented cylinder body of the marine engine on the assembly precision and long-term operation reliability.

The utility model discloses a profile connecting piece capable of supporting assembly of various racks. The profile connecting piece is provided with an inclined pipe part and a transverse connecting part, the inclined tube part is provided with an inclined cavity, the transverse connecting part is provided with a side cavity, the side cavity and the inclined cavity are combined to form a section of inverted-T-shaped cavity channel, the lower end of the inclined cavity is closed to form a first connecting end, and at least one first connecting hole is formed in the first connecting end; the two sides of the transverse connecting part are arranged to be sectioning faces, and the sectioning faces on the two sides are each provided with a plurality of second connecting holes to form a second connecting end. A third connecting end is arranged at the transverse end of the transverse connecting part; at least one third connecting hole and at least one positioning convex strip are arranged on the end surface of the third connecting end; the two sides of the lower area of the third connecting end are each provided with a convex positioning insertion column. The sectional material connecting piece is of an integrated structure, is provided with a plurality of connecting ends and a plurality of connecting modes, can support assembling of a plurality of racks, and improves universality and applicability of the connecting piece.