40results about How to "High matching precision" patented technology

This application discloses a robot-based workpiece assembly method, apparatus, device, and readable storage medium. The method includes: controlling a robot to move to a target area near a loading table; acquiring the workpiece pose and the pose of a first assembly position; controlling the robot's end effector to move according to the workpiece pose and the first assembly position pose, so that the first assembly part on the workpiece to be registered aligns with the first assembly position; switching the robot's end effector to a force feedback-based compliant control mode, and adaptively adjusting the robot's end effector pose according to the real-time force signal from the robot's six-dimensional force sensor to assemble the first assembly part with the first assembly position; using the assembled first assembly position as a positioning reference, controlling the robot to complete the assembly of the second assembly part of the workpiece to be registered with the second assembly position on the loading table. This method employs a step-by-step assembly strategy to achieve multi-assembly position assembly of the workpiece, significantly reducing the cumulative positioning error between multiple assembly positions and improving efficiency and assembly accuracy.

The utility model relates to the technical field of relay manufacturing, and discloses an electromagnetic assembly automatic riveting machine which comprises a rack, a tool, a conveying device and a riveting device. A riveting station is arranged on the rack; the tool comprises a guide base, a sliding block and an elastic piece, a guide groove used for containing and limiting the yoke is formed in the guide base, a sliding groove used for being in sliding connection with the sliding block is formed in the groove bottom of the guide groove, a limiting hole is formed in the sliding block and used for containing the magnetic sleeve and limiting the magnetic sleeve to be opposite to the penetrating hole position of the yoke, and the elastic piece is arranged between the guide base and the sliding block. The elastic force drives the sliding block to slide towards the limiting hole; the conveying device is arranged on the rack, is in transmission connection with the guide seat and is used for conveying the tool to move in or out of the riveting station; and the riveting device is arranged on the rack, is opposite to the riveting station and is used for riveting the yoke and the magnetic sleeve on the riveting station so as to rivet the yoke and the magnetic sleeve into a whole. According to the utility model, the problem of how to improve the matching precision of the yoke and the magnetic sleeve can be solved.

The invention discloses a rocket engine thrust control method and system, and relates to the technical field of rocket engine control, and the method comprises the steps: obtaining a combustion chamber pressure fluctuation signal, a propellant supply state parameter and a target thrust demand, carrying out the time-frequency domain decomposition of the pressure fluctuation signal, and obtaining a dominant frequency and amplitude envelope; and calculating a combustion stability boundary value. The thrust demand change gradient is restrained based on the boundary value, a thrust adjusting track is generated, and the flow adjusting amount and the pressure difference adjusting amount are calculated. And establishing a time sequence cooperative relationship between flow regulation and pressure difference regulation, and analyzing the pressure distribution characteristics of the supply pipeline. And flow adjusting quantity correction is conducted through frequency difference value calculation, and finally the supply mechanism and the injection mechanism are driven to achieve thrust adjustment. According to the invention, the thrust adjusting precision and the system stability can be effectively improved.

The utility model relates to the technical field of automobile engine production equipment, and discloses a bushing press-fitting structure of an oil pan, which comprises a rack, a positioning plate arranged on the rack, a plurality of supporting seats and a pressing mechanism which are arranged on the positioning plate, and a press-fitting mechanism arranged on the rack, the supporting seat is used for supporting an oil pan; the pressing mechanism is used for pressing the oil pan on the positioning plate; and the press-fitting mechanism is used for press-fitting the bushing into a mounting hole of the oil pan. By means of the structure, the accurate position of the oil pan in the press-fitting process is guaranteed, an accurate reference can be provided for press-fitting of the lining, it is guaranteed that the lining can be accurately pressed into the corresponding installation hole, the matching accuracy of the lining and the installation hole is improved, and the installation problem caused by position deviation is reduced.

The utility model relates to the technical field of seats, and provides an omni-directional rotating part for an automobile seat, which comprises a shell main body and a driving wheel main body, is arranged in the shell main body and is used for providing rotating power; the driving wheel dustproof plate covers the driving wheel main body so as to prevent dust from entering the driving wheel main body; the unlocking disc and action wheel assembly is matched with the driving wheel main body and is used for unlocking and driving the rotation action; the rotating disc is rotatably arranged in the shell main body and is connected with the unlocking disc and the action wheel assembly so as to realize rotation of the seat; the rotating disc and the fixed disc are meticulously designed, so that the matching precision is higher. In the rotating process, the shaking and blocking phenomena can be effectively reduced, and the rotating smoothness of the seat is ensured. Therefore, when a user adjusts the direction, the operation is smoother and more natural, the overall stability of the seat is greatly improved, and more reliable support is provided for the user.

The utility model discloses a kind of trench hydraulic support structures, to solve the problems of existing trench support structure, such as inconvenient depth expansion, unstable connection, unreasonable support and poor component matching precision.The structure includes upright, support plate, top surrounding purlin, bottom support, and middle support can also be set according to requirement.Upright inside is trapezoidal section double-track parallel guide rail, support plate both ends have T-shaped end head engaged with it, gap fit between the two and T-shaped end head with wear layer.Support plate is modular steel plate, and depth expansion can be realized by layer-by-layer installation through hydraulic propulsion device.Top surrounding purlin is H-shaped steel beam, fixed on the top of upright by connecting assembly;Bottom support is H-shaped steel component, connected to the bottom of upright.Middle support is telescopic sleeve type rod, installed when excavation depth is greater than or equal to 2m.The structure is stable in connection, reasonable in support, high in component matching precision, and can improve the safety, stability and construction efficiency of trench support.

This disclosure relates to a liquid spraying device, characterized in that it includes: a control unit, a spray head, a droplet driving unit, and a liquid supply device. The control unit is configured to receive target liquid spraying information, the target liquid spraying information including the droplet volume and number of sprays per spray as set according to requirements. The droplet driving unit is configured to generate a corresponding spraying waveform signal based on the droplet volume and the number of sprays. The liquid supply device is configured to supply target liquid to the spray head in a voltage-stabilized and constant-flow manner, and the spray head, in response to the spraying waveform signal, sprays the target liquid supplied by the liquid supply device from one or more outlets with the set droplet volume and number of sprays per spray.

The present application relates to the technical field of unmanned aerial vehicle, in particular to an intelligent flight path planning and energy management system and method for long endurance fixed-wing unmanned aerial vehicle, comprising an environment perception unit; the flight path planning unit plans a flight trajectory meeting task requirements, safety requirements and energy constraints based on the unmanned aerial vehicle flight environment information obtained by the environment perception unit and the pre-stored unmanned aerial vehicle performance parameters; the energy management unit realizes dynamic energy management and optimization according to the real-time energy state of the unmanned aerial vehicle, the flight task and the planning result of the flight path planning unit. The flight path planning unit of the present application can call the energy consumption data of working conditions such as speed and height output by the energy management unit in real time, dynamically adjust the path weight to avoid high energy consumption sections; the energy management unit synchronously adjusts the main / backup battery charging and discharging strategy to optimize energy distribution according to the task time sequence of the flight path (such as waypoint priority, trajectory curvature).

The utility model relates to a power device. Comprising a shell; the sliding part is in sliding connection with the shell; a sliding groove is formed in one of the shell and the sliding part, the rolling part is arranged on the other one of the shell and the sliding part in a rolling mode, and the rolling part is in sliding fit with the sliding groove; and the driving mechanism is arranged on the shell and drives the sliding piece to slide. In the process that the sliding piece linearly slides relative to the shell, the rolling piece rolls relative to the shell and the sliding piece, so that rolling friction is formed between the sliding piece and the shell, and the frictional resistance of the sliding piece in the sliding process is reduced. Due to the fact that the friction resistance is reduced, the sliding piece is stressed more evenly, the sliding piece is prevented from swinging in the sliding process, the clamping stagnation phenomenon can also be avoided, the sliding piece moves more stably, and therefore the running stability of the power device is improved.

The utility model discloses an elasticizer hot box which comprises a machine body and a hot door, a heat insulation groove is formed in the upper portion of the machine body, a heating groove is formed in the lower portion of the heat insulation groove, a hot rail is arranged at the bottom of the heating groove, the hot door comprises a cover plate, a limiting table is arranged on the lower portion of the cover plate, the limiting table comprises a first boss, and a second boss is arranged on the lower portion of the first boss. The first boss can be inserted into the heat insulation groove, and the second boss can be inserted into the heating groove. The lifter drives the hot door to lift up and down, the heat insulation groove can be effectively covered, the heat insulation effect is improved, the protruding block is arranged and can be inserted into the heating groove, and therefore the space of the heating groove is reduced, the heating effect of the hot rail is improved, and energy loss is reduced.

The application discloses a plastic fender assembly structure, comprising: a fender body, the outer edge of which is respectively provided with a front door flange structure, a front bumper flange structure and a hood flange structure, the front end of the inner side surface of the fender body is sequentially provided with a first fender support, a second fender support and a third fender support from top to bottom, the upper end of the first fender support is connected with the hood flange structure, the bottom edge is not connected with the second fender support, the bottom end of the second fender support is connected with the top end of the third fender support, and the bottom end of the third fender support is connected with the front bumper flange structure. The plastic fender assembly structure can not only realize light weight, but also improve the matching precision of the fender, ensure the gap surface difference matching requirement with surrounding parts and reduce the assembly and adjustment difficulty.

This invention relates to a quick-change horizontal honing fixture, comprising a support mechanism and a clamping mechanism. The clamping mechanism includes a clamping core mounted on the support mechanism, the clamping core having a receiving cavity for accommodating a workpiece. The clamping mechanism also includes a connecting member with a hollow cavity disposed on the side of the clamping core and a locking member slidably disposed within the connecting member. A through groove is formed on the clamping core corresponding to the hollow cavity of the connecting member. One end of the locking member can retract into the through groove or extend into the interior of the clamping core through the through groove, so that one end of the locking member can separate from or engage with a hole in the workpiece. The clamping mechanism also includes a first elastic member, which is used to make the locking member tend to engage with the hole in the workpiece. Using this horizontal honing fixture enables quick workpiece change, reduces workpiece change time, and increases work efficiency.

According to the mining large-specification vertical chain connecting ring, the manufacturing method, the mining chain and the scraper conveyor, the machining technology of forging, rough machining, heat treatment, shot blasting, finish machining, stretching and surface strengthening is adopted, the reliability of the chain connecting ring is improved, and the service life of the chain connecting ring is prolonged. The chain connecting ring comprises a first semi-ring, a second semi-ring and two positioning pins, the first semi-ring and the second semi-ring are oppositely combined to form an annular structure, a first pin hole and a second pin hole are formed in the two ends of the first semi-ring, and a third pin hole and a fourth pin hole are formed in the two ends of the second semi-ring. The first pin hole and the fourth pin hole are concentric, the diameter of the fourth pin hole is larger than that of the first pin hole, the second pin hole and the third pin hole are concentric, the diameter of the second pin hole is larger than that of the third pin hole, and a positioning pin is correspondingly inserted along the fourth pin hole and the first pin hole and inserted along the second pin hole and the third pin hole to fix the first half ring and the second half ring. The first semi-ring and the second semi-ring are matched in a tenon-and-mortise mode to achieve boss and groove installation, and firm connection of the chain connecting ring is guaranteed.

The application discloses a joint module, which comprises a module main body, the module main body comprising a first joint body and a first input sleeve connected with the first joint body; the first input sleeve is used for being connected with a first output structure of an external device; an outer side wall of the first input sleeve is provided with a guide section, an outer diameter size of the guide section gradually decreases from a free end of the first input sleeve to the first joint body; a first fastening hole is formed in the guide section, the first fastening hole penetrates through the side wall of the guide section along a radial direction of the first input sleeve; a fastening sleeve is annular, the fastening sleeve is provided with a fastening section, an inner diameter size of the fastening section gradually increases from one end to the other end, and a second fastening hole is formed in the fastening section; the fastening sleeve is sleeved on the guide section, and the second fastening hole is arranged correspondingly to the first fastening hole; and a fastener is used for being connected with the first output structure by penetrating through the first fastening hole and the second fastening hole. The joint module can improve transmission precision of the joint module.

The utility model particularly relates to multifunctional sound equipment, and belongs to the technical field of sound equipment. The multifunctional sound box comprises a machine body, and further comprises a seat body, a rotating part and a pressure applying assembly. The seat body is provided with a containing cavity, and the containing cavity is provided with an opening. The rotating part is of a cylindrical structure, the inner contour shape of the containing cavity is matched with the rotating part, the rotating part is inserted into the containing cavity through the opening, and the machine body is connected to the rotating part. The pressure applying assembly is used for applying pressure to the rotating part. When the arc-shaped peripheral wall face of the rotating part abuts against the arc face of the containing cavity, the rotating part can rotate relative to the base body, and then the installation angle of the machine body connected to the rotating part can be adjusted. The cylindrical structure of the rotating part improves the matching precision and the connection strength of the rotating part and the seat body.

The utility model relates to the technical field of petroleum machinery, in particular to a jar high-torsion-resistance transmission structure which comprises a mandrel, a transmission structure is arranged on the outer arc surface of the mandrel, the transmission structure comprises outer teeth, the outer teeth are fixedly connected to the outer arc surface of the mandrel in a circumferential array shape, a spline body is arranged on the outer arc surface of the mandrel, and the spline body is fixedly connected with the mandrel. The inner teeth are fixedly connected to the inner arc surface of the spline body in a circumferential array shape, the outer teeth are meshed with the inner teeth, and a first limiting hole is formed in the outer arc surface of the mandrel. According to the internal and external splines, involute tooth transmission is adopted, the number of teeth is increased, meanwhile, due to the particularity of the tooth shape, stress is more uniform compared with other structures, and the service life of the internal and external splines is prolonged. The defects that the structure is fast in abrasion and short in service life can be overcome, the transmission efficiency is improved, the matching precision is improved, the torsional strength of the jar is improved, impact in the torque transmission process is reduced, the assembly difficulty is reduced, the service life of a product is prolonged, and a large amount of use cost is saved.

The utility model belongs to foundry surface treatment technical field, specifically disclose a foundry surface treatment device for precision casting, including base frame, the inboard fixed mounting of base frame has the support station, the inboard fixed of support station is equipped with the axle of platform, the outer surface rotationally connected of axle has the support board, the top fixed mounting of base frame has the pneumatic cylinder, the output fixed connection of pneumatic cylinder has the type head of school, be provided with the fixed pipe mechanism on the base frame, one end fixed connection of base frame has the fixed seat. This foundry surface treatment device for precision casting, through the pneumatic cylinder cooperation type head, the correct position on the support board is carried out to the bending part of pipe fitting after school type, can through fixed pipe mechanism and adjustable polishing mechanism, let two groups of the part of pipe fitting after school type carry out deburring, effectively promoted the flatness of pipe fitting surface, the even surface reduced the friction and wear and tear when assembling, improved the cooperation accuracy and sealing property of pipe fitting and other parts.

The utility model provides an anti-deviation cylinder cover seat ring press-fitting device, which relates to the technical field of cylinder cover press-fitting and comprises a supporting table, a supporting frame is mounted at the rear end of the upper surface of the supporting table, a cross electric sliding rail is mounted at the lower end of the supporting frame, a first sliding block is mounted at the lower end of the cross electric sliding rail, and a second sliding block is mounted at the lower end of the cross electric sliding rail. A press-fitting mechanism is installed at the lower end of the first sliding block, raw materials are installed at the lower end of the press-fitting mechanism in a clamped mode, and a storage box is installed on one side of the rear end of the upper surface of the supporting table. Through cooperation of the clamping block, the positioning groove, the positioning block and other structures, the seat ring can be accurately positioned, when the air cylinder pushes the push rod to move downwards, the push rod pulls the connecting rope to enable the second sliding block to drive the clamping block to clamp raw materials, the raw materials are stably fixed before press fitting, the possibility that the seat ring deviates in the press fitting process is greatly reduced, and the press fitting efficiency is improved. And the matching precision of the seat ring and the cylinder cover is improved, so that the overall performance and the sealing effect of the cylinder cover are guaranteed.

This invention discloses a large-format split-type laser cutting machine bed connection structure and assembly method, including a movable crossbeam, with a laser cutting machine bed located below both ends of the movable crossbeam. The laser cutting machine bed includes a first bed, a second bed at one end of the first bed, and connecting plates on both sides of the adjacent ends of the first and second beds. First pin grooves are provided on both sides of the joint of the connecting plates, and first pin keys are provided within the first pin grooves. Second pin grooves are provided on the adjacent upper surfaces of the first and second beds. This invention moves the bed through the cooperation of nuts and screws, which is safer and more stable, saving manpower. The cooperation of guide columns and guide holes can accurately position the connection between the two beds, reducing cooperation errors and improving cooperation accuracy. The first and second pin keys are adjusted in size through grinding, so that the pin keys and pin grooves fit tightly, which can limit the position of the two beds, preventing processing vibration from affecting the bed and improving processing accuracy.

This utility model discloses a slide rail device for a feeding and metering mechanism of a packaging machine, including a base, a mounting seat connected to the base, a guide groove on the mounting seat, a slider inside the guide groove, a feeding hole on the slider, a support seat above the slider, and the support seat connected to the mounting seat. The support seat above the feeding hole has an mounting groove, and a guide tube inside the mounting groove. The free end of the guide tube slides and fits against the slider. Rotating shafts are symmetrically arranged along the guide tube inside the mounting groove. A pusher block blocks granular products that spill from the guide tube into the slide groove when the slider moves. When the slider resets, it pushes the spilled granular products into the feeding hole, preventing accumulation and ensuring normal operation of the equipment. Through the guide groove, slider, pusher block, and slide groove, and with the spring, the pusher block remains in contact with the slide groove, improving the fit accuracy between the sliding parts and greatly increasing work efficiency.

This invention relates to the field of handrail technology, and more particularly to an adjustable rotatable handrail structure, comprising: a mounting base with a first connecting shaft on it; a second connecting shaft with a ratchet structure on it; a handrail body with a rotating connecting part sequentially sleeved and connected to the second connecting shaft and the first connecting shaft; and a gear adjustment structure including a pawl and a reset member. When the handrail body rotates counterclockwise, it synchronously drives the pawl to move along the trajectory of the ratchet structure to achieve gear adjustment. When the reset member moves to its limit position, the pawl abuts against the side wall of the reset member, and the handrail body rotates clockwise to its initial position, synchronously driving the pawl and the reset member to reset. This invention achieves multi-gear rotation adjustment and reset functions of the handrail through fewer components and a simpler structure for manual operation. It is labor-saving, stable, and reliable, solving the problems of traditional handrail angle reset requiring external control components, complex operation, and high cost.

This disclosure relates to the technical field of tooling for disassembling and assembling quenching heads for rolling mills. One embodiment of this disclosure provides a tooling for facilitating the disassembly and assembly of quenching heads, comprising: a support base, a front groove, and a rear groove. Both the front and rear grooves are formed on the surface of the support base. A mounting seat is disposed outside the support base. A docking assembly is disposed between the support base and the mounting seat. An outer frame is fixed to the side surface of the mounting seat. A lifting assembly is disposed on the outer frame, including a lifting frame. The lifting frame is disposed on the outer frame and has a lifting seat. A vertical screw is rotatably connected inside the outer frame, and the lifting frame and the vertical screw are connected by a threaded connection. This technical solution solves the technical problem in the prior art where the disassembly and assembly of a single quenching head requires multiple operation steps, and the disassembly of the outer and inner layers requires the use of different tools alternately. Frequent tool switching and component handling can easily lead to operational errors and even damage to the surface of the rolling mill.

This utility model discloses a pruning machine blade assembly, including a first blade (1), a second blade (2), a pressure strip (3), a partition strip (4), a drive gear (5), and multiple sets of fixing bolts and nuts. The drive gear (5) has an integrally structured central block (21), and the central block (21) has at least one positioning rod (14) that passes through the first disc (11) and the second disc (13). Rotating the drive gear (5) causes the first blade (1) and the second blade (2) to reciprocate linearly. This pruning machine blade assembly uses an integrally structured drive gear, which drives the tail ends of the two blades with the body of the drive gear, while fixing the positioning rod of the drive gear to the central block of the drive gear, thus improving the connection strength, reducing the probability of loosening, and eliminating the risk of slippage.

This utility model discloses an automatic coupling for a seamless pipe sizing machine, relating to the technical field of seamless pipe production equipment. It includes a spline head, with a reducer output shaft mounted at one end. The spline head and the reducer output shaft are connected by an interference fit heat fitting. This utility model reduces direct wear on the output shaft by using an interference fit heat fitting between the reducer output shaft and the spline head, avoiding the need to replace the reducer output shaft due to spline wear. This fundamentally eliminates the need to disassemble the entire reducer, significantly reducing maintenance difficulty. By adopting a split flange connection structure, when the spline head or inner spline sleeve wears, only the connecting bolts between the gland and the spline head need to be removed to replace the worn part, making maintenance convenient and significantly shortening downtime. The optimized coupling structure is simplified, improving fitting accuracy, and includes an elastic compensation structure to reduce impact wear, extend the overall service life of the coupling, and reduce equipment failure rate.

This invention provides a pressure-stabilizing stamping die device for processing automotive parts, belonging to the technical field of automotive parts processing molds. The device includes an upper die plate, a lower die plate, a bottom support plate, an upper die assembly, and a lower punch assembly. A first nitrogen spring, a second nitrogen spring, and a third nitrogen spring are fixed on the bottom support plate. The first nitrogen spring is located at both ends of the bottom support plate, with its upper end connected to both ends of the upper die plate. The upper end of the second nitrogen spring passes through a drawing and pressing plate and abuts against a wear-resistant block. The first and second nitrogen springs are connected by an air pipe. The upper end of the third nitrogen spring is connected to the lower end of the drawing and pressing plate. Connecting the first and second nitrogen springs through the air pipe enables coordinated adjustment of the stamping pressure. When the downward pressure of the upper die plate is too high, nitrogen can flow between the two nitrogen springs, reducing the pressure of the corner pressure plate in the reverse direction, effectively preventing the material from failing to flow into the cavity due to excessive pressure.

The utility model discloses a screw rod device for adjusting a traction point of a hydraulic turnover plow, which is used for connecting an I-shaped beam and a plow body and comprises a left-handed screw rod and a right-handed screw rod which are connected through a sleeve, and further comprises a locking and fixing structure used for preventing the sleeve from freely rotating. According to the screw adjusting device, the locking fixing structure is arranged, so that the problems that the sleeve freely rotates and the screw is loosened due to vibration and impact force in the operation process of an existing screw adjusting device are effectively solved, the stability of the position of a traction point is ensured, and the linearity and depth uniformity of cultivation are improved.

This invention relates to an injection molding mold for a solar lamp housing, belonging to the field of injection molding technology. It includes an upper module and a lower module. The upper module has symmetrically arranged storage cavities at its upper front and rear. A replenishment valve is fixedly installed on the upper side of the inner wall of each of the two storage cavities. Positioning posts are fixedly installed at the four corners of the bottom of the upper module. Oil connection pipes are fixedly installed on one side of each of the two corresponding positioning posts inside the storage cavities for supplying lubricating fluid to the positioning posts. A conveying assembly is provided on the inner wall of each of the two storage cavities. A switching assembly is provided at the bottom of each of the two replenishment valves. This invention enables quantitative and continuous replenishment of lubricating fluid to the positioning posts, while simultaneously replenishing the total storage cavity, maintaining a stable lubrication state over a long period. This effectively avoids problems such as shaking and wear of the positioning posts due to insufficient lubrication, significantly improving the stability, fitting accuracy, and service life of the mold operation.

The utility model provides a mounting bracket of a dynamic vibration absorber, which is used for vibration test of a vehicle, the dynamic vibration absorber comprises a mounting hole, the mounting bracket comprises a mounting seat, a first connecting piece and a second connecting piece, and the mounting seat is provided with a mounting surface which can be rigidly and detachably bonded with a to-be-tested part of the vehicle; the first connecting piece is fixedly connected with the mounting seat, and comprises a mounting rod which is matched with the mounting hole and can penetrate through the mounting hole to extend out; and the second connecting piece is detachably connected to the mounting rod and compresses and fixes the dynamic vibration absorber on the mounting bracket. According to the utility model, the technical problem that the process of replacing the dynamic vibration absorber in a real vehicle verification stage takes a long time can be solved.