134 results about "Machine design" patented technology

The invention discloses a CAD automatic generation system and method based on intelligent model selection and application, and aims at achieving automatic modeling under the multi-modal design requirement. The system comprises a user interaction module for receiving multi-modal input such as natural language, sketch and voice; the intelligent demand analysis module is used for combining an industrial large language model and a product knowledge graph, combining semantic analysis and generating a structured demand; the intelligent model selection calculation module is used for matching the optimal parameter combination and the component list based on a multi-objective optimization algorithm; the CAD automatic generation module calls a parametric modeling engine to generate an editable three-dimensional model; the constraint solving module is used for processing hard constraints and soft constraints in real time and dynamically adjusting model parameters; and the model output and interaction module feeds back a design state and supports user iteration. The system realizes full-process automation from the design intention to the CAD model, improves the design efficiency and accuracy, and is suitable for the fields of mechanical design, intelligent manufacturing and the like.

The invention relates to the field of scroll compressor design, and discloses a full-meshing double-vortex-ring scroll compressor diffusion hole machining design method which comprises the steps of constructing an initial design domain, defining a multi-working-condition working point set and a fluid dynamic control equation determined by compressor operation parameters to construct a multi-working-condition analysis model, establishing a solid isotropic material penalty model, and designing a diffusion hole of a full-meshing double-vortex-ring scroll compressor according to the solid isotropic material penalty model. Multi-working-condition robustness topological optimization with the total pressure loss weighted sum under all the weighted working conditions as the target is executed, a discrete pseudo-density field is obtained, parameterized geometric reconstruction is conducted on the discrete pseudo-density field, and a diffuser hole parameterized geometric model controlled by parameter vectors is obtained. By introducing multi-working-condition robustness topological optimization and integrated dynamic machining constraint linkage re-optimization, remarkable robustness of aerodynamic performance of the diffusion hole in a wide working range is achieved, it is ensured that the diffusion hole meets the high-quality and high-efficiency numerical control machining requirements congenitally, and the design efficiency and manufacturing feasibility of the diffusion hole of the scroll compressor are greatly improved.

A rapid detection and automatic release control system for cloth twining on a roller and a dyeing machine thereof relate to the technical field of dyeing machines, overcome the defects that a traditional dyeing machine lifting system is controlled by a frequency converter, and comprise a lifting roller, a servo motor and a servo driver, the servo motor is a non-band-type brake servo motor and is in transmission connection with the lifting roller through a synchronous belt; the servo driver is connected with and controls the speed of the servo motor, and the servo driver further comprises a brake resistor which enables a rotor of the servo motor to generate reverse electromagnetic brake torque and controls the free rotation speed of the rotor of the servo motor. The system can effectively reduce accidents that the fabric is tangled in the roller, reduce fabric wiping marks and improve the fabric quality, and after the system is introduced, a mechanical tangling detection device can be omitted, the machine design can be simplified, the machine cost can be effectively reduced, and the competitiveness is improved.

The invention discloses a multifunctional safety type connecting bridge system for an LNG (liquefied natural gas) filling wharf boat, which comprises a connecting bridge body, the connecting bridge body comprises an LNG equipment cabin and a pedestrian guardrail, an LNG pipeline group is laid in the LNG equipment cabin, and two ends of the LNG pipeline group are respectively communicated with a fixed pipeline of the connecting wharf boat and are output / input outwards; the LNG equipment cabin comprises an anti-explosion partition plate and an anti-explosion sealing top plate, the anti-explosion partition plate and the anti-explosion sealing top plate jointly define a cabin space for laying of the LNG pipeline set, the pedestrian guardrail is fixedly connected to the top of the LNG equipment cabin, and the pedestrian guardrail and the LNG equipment cabin define a pedestrian path; the LNG equipment cabin is movably connected with the wharf boat and the wharf through universal hinge supports. Through mechanical design and flexible connection design of vertical space layering, physical isolation of a dangerous source and a personnel channel is achieved in a single bridge body, safety is improved, the overall design is miniaturized, and the device is more suitable for transformation projects with limited space and can adapt to wharf boat operation under various hydrological conditions.

The utility model relates to the technical field of cloth inspecting machine design, and discloses a cloth inspecting machine convenient for adjusting the position of a control panel, which comprises a machine body, an unwinding roller, a winding roller, a cloth inspecting lamp box and the control panel, the connecting sleeve is provided with a connecting pipe, the upper end of the connecting pipe is connected with the control panel, the lower end of the connecting pipe is embedded in the connecting sleeve, the connecting sleeve is provided with an inner threaded sleeve communicated with the interior of the connecting sleeve, and the inner threaded sleeve is in threaded connection with a locking threaded shaft with the end used for abutting against the outer wall of the connecting pipe. An adjusting sleeve rotationally connected to the end of the connecting pipe is arranged on the upper side of the control panel, and a positioning piece used for positioning the angle of the control panel is arranged between the adjusting sleeve and the connecting pipe. The locking threaded shaft is connected into the inner threaded sleeve in a threaded mode so that the end of the locking threaded shaft can abut against the outer wall of the connecting pipe, at the moment, the circumferential rotating position of the connecting pipe can be positioned, and therefore the position of the control panel can be adjusted.

The utility model relates to the technical field of mechanical design and manufacturing, and discloses a lubricant retaining structure of a transmission shaft, which comprises a transmission shaft, a fixed disc, a sliding component, an auxiliary component and a lifting component, a sliding assembly is embedded in the transmission shaft, and a fixing disc is fixedly arranged on the transmission shaft. The sliding assembly is fixedly sleeved with an auxiliary assembly, and a lifting assembly is arranged in the auxiliary assembly. A positive and negative rotation motor in the lifting assembly drives a lead screw to drive an embedding ring and a retaining plate to move, the position height of the retaining plate is adjusted and controlled through transmission of the lead screw and the embedding ring, the storage space and the conveying amount of a lubricant in a retaining box are accurately adjusted, waste and defects are avoided, and the working efficiency is improved. A large-capacity storage space is provided through the retaining box of the auxiliary assembly, the retaining box is fixed to the outer side of the scarf joint cylinder, the supplementing frequency is reduced, scarf joint of the sliding assembly and the transmission shaft and the connecting mode of all the assemblies are simple and easy to operate, mounting and dismounting are convenient and fast, the mounting difficulty and time cost are reduced, and the assembling efficiency and maintainability are improved.

The fancy concave cutting gemstone faceting attachment device is a device that allows concave type faceting of gemstones by means of mounting this device to an existing faceting machine. This may be accomplished utilizing the existing machines drive motors and hardware. This device prevents the need to purchase completely separate concave faceting machines to accomplish the same task of concave faceting. This is preferably a universal machine design allowing this device to mount to many makes of faceting machines in the current marketplace.

A method performed by an apparatus may comprise defining a Markov decision process (MDP) for use in deep reinforcement learning associated with gear train topology, representing the gear train topology based on the MDP, generating the gear train topology through deep reinforcement learning of a deep Q-network (DQN), and constructing a gear train based on the generated gear train topology.

The invention provides a mechanical design chart hybrid intelligent analysis method and system based on interactive learning, and provides an efficient and systematized solution for intelligent processing of mechanical design chart knowledge by adopting a multi-modal data fusion technology and combining deep learning, an OCR (Optical Character Recognition) technology and natural language processing. Through an accurate chart and text recognition method, the analysis precision and the practical efficiency of design knowledge are remarkably improved, and the precision requirement in standardized mechanical design is met; the system adopts a convolutional neural network and an attention mechanism, solves the problems of insufficient precision and inaccurate structured data output when a complex chart is processed in a traditional technology, and optimizes data integration and processing flows by seamlessly connecting an analysis result with an agent knowledge base and a database.

The application relates to a low-friction design method of a planetary roller screw, and belongs to the technical field of mechanical design. Step 1, a contact point position solving model and a kinematics model of the planetary roller screw are established, and the sliding speed and the entrainment speed of a screw-roller and a roller-nut contact pair at a contact point are solved; step 2, according to the definition of a slide-roller ratio, a slide-roller ratio calculation model of the screw-roller and the roller-nut contact pair of the planetary roller screw is established; step 3, according to the correct movement and meshing requirements of the planetary roller screw, a structure constraint condition is established; step 4, taking the minimization of the slide-roller ratio of the screw-roller and the roller-nut contact pair as an optimization target, and combining the structure constraint condition, a low-friction design model of the planetary roller screw is established; step 5, a multi-objective evolutionary algorithm is adopted to calculate the low-friction design model of the planetary roller screw, and optimal solutions and corresponding structure design parameters are obtained.

The present application belongs to the field of mechanical design, and particularly relates to a method for extracting a center line of a rod body based on internal point array information of a three-dimensional model. The method comprises the following steps: S1, extracting an outer surface and a bounding box information of a rod body model with a cross-sectional radius R of the rod body; S2, generating an initial point array in the bounding box; S3, extracting a point inside the rod body model and a nearest point of the point to the outer surface of the rod body model; S4, calculating coordinates of a center O of a rod body cross section corresponding to each point in a point array sub-set extracted in step S3; and S5, performing curve fitting on all points O to obtain a center line of the rod body model. The present application can realize fast extraction of a center line of a non-straight rod body three-dimensional model, and is particularly suitable for application in a rod body design environment with a relatively complex shape.

The invention relates to a coffee machine which comprises a bag supporting frame which is installed on a machine body in a sliding mode, a release channel is formed in the bag supporting frame, the release channel is used for containing and guiding a coffee bag, and the size of the release channel is configured to allow a fixed extraction head to penetrate through; and the linkage mechanism is used for transmitting the movement of the movable extraction head to the bag supporting frame. According to the coffee machine designed by the invention, through the free stroke design of the linkage mechanism, the bag supporting frame is static at the initial stage of bag withdrawing so as to preferentially carry out gravity bag withdrawing, coffee bags which are possibly adhered are actively scraped during subsequent resetting, a double bag withdrawing guarantee mechanism combining gravity falling and mechanical scraping is realized, and the coffee bag withdrawing efficiency is improved. The problem of bag withdrawing failure caused by adhesion of coffee bags due to damp heat is fundamentally solved, and the bag withdrawing reliability is ensured.

The invention relates to the technical field of mechanical design, in particular to a mechanical structure global intelligent design system based on topological evolution optimization. Comprising a global parametric modeling module configured to construct an initial population of a mechanical structure by using an explicit geometric description method based on a preset design domain, a mechanical boundary condition and a manufacturing process constraint, each individual in the initial population being uniquely represented by a group of geometric parameter vectors, according to the method, a closed-loop feedback mechanism of a physical perception agent model and active learning evolution is constructed, so that the inherent contradiction of huge time consumption of traditional evolution optimization calculation and insufficient physical precision of a pure data driving model is effectively overcome; according to the system, the deep neural network is used for replacing high-frequency finite element calculation, the global search efficiency of a complex mechanical structure is improved by two orders of magnitude, meanwhile, real-time error calibration is carried out on an agent model through online high-fidelity verification, and it is ensured that the mechanical property prediction error of an optimal solution is lower than a preset threshold value.

The invention relates to an electromechanical machine for converting animal skins into leather, consisting of a machine intended to participate in one or more steps of a process for converting any animal skins into leather. The machine is characterized in that it comprises: a main tank (1) in which the animal skin (3) is immersed in a treatment fluid, called syrup (2), containing one or more additives; an impeller suction motor pump (4) circularly conveys the syrup (2) through a water outlet pipe (5) to a reversing valve (5.1), the reversing valve guides the syrup (2) to one or more filters (6), guides the treatment fluid to a heater (7) or a bypass pipe (5.3), and finally reaches a group of storage tanks (8), and the storage tanks (8) are connected with the water outlet pipe (5). The filter is preferably a slow sand type filter, a decanter type filter, a settling tank type filter, an ozone or UVC ultraviolet radiation disinfection type filter, a zeolite type filter, an activated carbon type filter, an anthracite type filter, a silicon dioxide type filter, an argenite type filter or a copper ion generator type filter, and an opening / closing valve (5.2) is arranged on a pipeline behind the reversing valve (5.1). The syrup (2) is then stored and then discharged into the main tank (1) via a return line (5.4). The machine is provided with a gear motor (9), and the gear motor transmits power through a rotating shaft (10) provided with a clamp (13) at the end. The clamp is arranged opposite to another same clamp (13) mounted on the sliding shaft (11); the machine is provided with a fixed stop block (15.1) fixedly connected with the main tank (1) and a movable stop block (15) fixedly connected with the sliding shaft (11); a spiral spring (14) is mounted between the two stop blocks; when the length of the spiral spring changes, the spiral spring can control the reversing device (16), and then the rotating direction of the gear motor (9) is adjusted. The machine is provided with a programmable central computer, and the computer is controlled according to the required characteristics of each animal skin in the aspects of color, tanning agent type, fatliquoring agent type, fixing agent type and the like.

The invention discloses a design processing method and device of a state machine, a storage medium and electronic equipment, relates to the technical field of nuclear power instrument control systems, and mainly aims to solve the problems of high cost and low reuse rate when the state machine in a nuclear power DCS (Distributed Control System) is designed by adopting existing graphical model design software. Performing modularization customization processing on each state machine element to obtain each corresponding component module; the state machine elements comprise a state machine, a state, migration and bifurcation; tool options corresponding to the state machine, the state, the migration and the bifurcation are set on a toolbar of a software page, and an incidence relation is established between the corresponding tool options and the component module; and when the tool option is selected, calling the corresponding component module based on the incidence relation, and designing a state machine structure on a software page according to the sequence of the engineering structure.

The invention relates to a kind of multi-wheel chain suspension system suspension function calculation method, and belongs to the technical field of engineering machinery design.The calculation method of the invention is suitable for chain transmission trajectory movement in the same plane;the polygon effect of chain wheel and chain is not obvious, and can be calculated by using the index circle;the chain system presents rigid property and does not occur obvious deformation;the number of chain wheel is greater than or equal to 2;by establishing accurate geometric, mechanical and total length constraint equation set, a closed nonlinear system is formed.After reasonable initial prediction of the lowest point tension of catenary and the direction angle of chain wheel meshing point, the accurate value is obtained by iterative solution.The accurate equation of catenary of each section of chain in the system, the tension distribution along the chain and the sag at any position can be further calculated.The method has high precision and strong universality, can process chain wheel system with any number and arrangement, and provides an effective theoretical calculation tool for the design, tension optimization and state analysis of chain transmission.

The utility model relates to the field of press machine design, and discloses an automatic press machine for a backboard production line, which comprises a working rack, a stamping connecting frame and a stamping working frame, the rear end of the working rack is provided with a stamping setting frame, the stamping setting frame is provided with a vertical stand, the vertical stand is provided with a stamping connecting frame, and the stamping connecting frame is connected with the stamping working frame. A stamping working frame is arranged below the stamping connecting frame, a back plate limiting assembly is arranged at the front end of the working rack, and a discharging assembly is arranged in front of the back plate limiting assembly. The press machine for backboard production is arranged to be of an open type stamping structure, the feeding selection and use range is widened, the stamping air cylinder is used for controlling the stamping work frame to directly cover the outer end of the backboard limiting assembly, relative connection of the stamping upper die base and the stamping lower die base is established, and a backboard workpiece is directly stamped. The die can be disassembled, assembled and replaced, the die is suitable for being used for punching production of back plates of different specifications, and the practicability of the press machine is effectively improved.

Vehicle (10, 100) that features: an internal combustion engine (12, 102); a first rotary machine (MG2, MG) designed to output a drive torque; a battery (52, 120) designed to be charged by the kinetic energy of the internal combustion engine (12, 102) and designed to supply electrical energy to the first rotary engine (MG2, MG); and an electronic control unit (90, 122) designed to selectively perform a first operational control and a second operational control, wherein The first operating control is a control for causing the vehicle (10, 100) to drive on the basis of a driver's driving operation, and the second operating control is a control for automatically setting a target driving state on the basis of at least map information and / or road information and for automatically performing acceleration or deceleration on the basis of the target driving state. the electronic control unit (90, 122) is designed to start the internal combustion engine (12, 102) when a value representing a state of charge of the battery (52, 120) falls below an internal combustion engine start threshold value, while the operation of the internal combustion engine (12, 102) is stopped, and the electronic control unit (90, 122) is designed to ensure that the combustion engine start threshold in the second operating control is lower than the combustion engine start threshold in the first operating control, the second operating control includes an unmanned operating control and a manned operating control, the unmanned operating control being an operating control corresponding to an unmanned journey for automatically performing acceleration or deceleration without occupants in the vehicle (10, 100), and the manned operating control being an operating control corresponding to a manned journey for automatically performing acceleration or deceleration while at least one occupant is present in the vehicle, the electronic control unit (90, 122) is designed to selectively perform unmanned operation control and manned operation control, and the electronic control unit (90, 122) is designed to ensure that the combustion engine start threshold in unmanned operation control is lower than the combustion engine start threshold in manned operation control.

The invention relates to the field of mechanical engineering, and discloses a processing design method based on a diamond cutter for optical fiber cutting. The method comprises the following steps: acquiring three-dimensional shapes and optical performance indexes of optical fiber end surfaces cut by a diamond cutter with different cutting edge parameters; microcosmic geometrical characteristics such as cutting edge curvature gradient, crystal orientation, collapse density and surface power spectrum density are extracted; constructing a physical interpretable neural network model embedded with fracture mechanics and optical waveguide constraint; reversely solving a cutting edge parameter set meeting the target optical performance; and an ultra-precision machining path is generated, and the single-point diamond lathe is controlled to machine the diamond cutter in a customized mode. Through closed-loop optimization and online fine tuning, the end face reflectivity stability and mode field consistency are improved, the return loss standard deviation is reduced, and the high-speed optical communication requirement is met.

The invention discloses an assembly interface contact characteristic distribution comprehensive evaluation and optimization method and system, and belongs to the technical field of mechanical design. The method comprises the steps of establishing a finite element model of an assembly structure; solving contact node data; calculating a node new coordinate and a comprehensive evaluation index HMECP based on the contact pressure; judging and updating the model; iteratively solving until a termination condition based on the maximum contact pressure value and the number of iterations is met, and dynamically updating the node modification coefficient according to the HMECP during the period. The system comprises corresponding function modules. According to the method, the harmonic average value of the effective contact area proportion and the contact stress distribution normalized entropy is constructed as a comprehensive evaluation index, and the adaptive morphology iterative optimization is driven based on the index and the target contact pressure, so that the cooperative improvement of the contact pressure distribution uniformity and the effective contact area of the assembly interface is realized; the comprehensive contact performance of the assembly interface is remarkably improved, the optimization process is efficient, and the target can be customized.

This invention belongs to the field of beer processing and production technology, and provides a connection structure and adjustment method for a beer membrane filtration system and a beer filling machine. The connection structure includes a beer membrane filtration system and a beer filling machine. The beer membrane filtration system includes a pre-filter, a final filter, a first inlet end, a second inlet end, a first outlet end, a pressure transmitter, a regulating valve, a double-seat valve, a beer pump assembly, a pneumatic valve, and connecting pipe fittings. The connection structure of the beer membrane filtration system and the beer filling machine designed in this invention, by adding a regulating valve, requires minimal modification to the equipment piping, does not require additional space, has low modification costs, and requires minimal modification to the control program of the beer filling machine, which can effectively reduce modification and production costs.

The utility model discloses a device for detecting the flatness of a mold in mechanical design, which comprises a support frame and is characterized in that the support frame is I-shaped steel, two groups of stop blocks are symmetrically mounted on two sides of the support frame, a movable seat is slidably connected to one side above the outer part of the support frame, a movable plate is fixedly mounted at the top of the movable seat, and the movable plate is fixedly mounted on the upper part of the movable seat. A mounting groove is formed in one side of the top of the movable plate in a penetrating mode, a dial indicator is arranged in the mounting groove, a positioning assembly is arranged below one side of the movable plate, a movable seat is slidably connected to the position, located on one side of the movable plate, of the outer portion of the supporting frame, and a mounting plate is fixedly mounted at the bottom of the movable seat; first supporting blocks are symmetrically mounted at the bottom of the lower check block on one side; according to the mold flatness detection device, when flatness detection is carried out on a mold, taking is convenient, operation is easy and convenient in the detection process, the flatness of different molds can be detected, and convenience and practicability are improved.

The utility model relates to a slitting machine design technical field especially relates to a slitting machine winding arm mechanism. Including riser, install first support axle of riser, support arm rotates and installs first support axle end portion, install the gas inflation axle of one end of support arm away from first support axle, install below support arm, and one end and support arm middle part rotation link together's first connecting piece, install second connecting piece of one end away from support arm of first connecting piece, and with first connecting piece rotation link together's second connecting piece, install second support axle of one end away from first connecting piece of second connecting piece, and with second connecting piece rotation link together's second support axle, install first drive air cylinder of second connecting piece upper side, and with second connecting piece close first connecting piece one end rotation link together.

The utility model relates to a kind of wood splitting assembly for wood splitting machine, including working beam, hydraulic cylinder and bracket.The one end of working beam is welded with tail plate, the other end is welded with baffle, and fender is fixed between tail plate and baffle.Working beam is slidably connected with sliding block, and the blade body of splitting knife is fixed on sliding block.Hydraulic cylinder is located between tail plate and fender, and the bottom of hydraulic cylinder is connected to tail plate by bolt, and the piston end of hydraulic cylinder is detachably connected at the back of splitting knife, and the chamber of hydraulic cylinder is communicated with reversing valve;Bracket is located between fender and baffle.By the wood splitting assembly for wood splitting machine designed by the utility model, the problems of safety hazard caused by component shedding or hydraulic cylinder out of control during splitting process of existing wood splitting machine, and the problems of jam, equipment shutdown caused by debris retention, reduction of work efficiency, support stability and auxiliary sliding mechanism deficiency can be solved.

The utility model belongs to the field of industrial production machinery design, and particularly relates to a grab bucket capable of improving slag grabbing efficiency, which comprises a grab bucket assembly and an opening and closing assembly, the grab bucket assembly comprises a cross beam and grab bucket main bodies, the two ends of the cross beam are respectively and rotatably connected with one grab bucket main body through a movable rod, and a movable beam is jointly connected between the two grab bucket main bodies; a plurality of tough blocks are arranged at one end of each grab bucket body, the tough blocks are located between the two grab bucket bodies, and the tough blocks on the two grab bucket bodies are arranged in a staggered mode; the opening and closing assembly is arranged between the cross beam and the movable beam and comprises a pulley block, the pulley block is composed of a plurality of pulleys, a bottom plate is arranged below the pulley block, a protection plate is arranged between the pulley block and the bottom plate, a rope blocking plate is arranged between every two adjacent pulleys in the pulley block, the rope blocking plates are evenly arranged on the protection plate, and the pulley block is sleeved with a steel wire rope; according to the utility model, the impact of ash on the grab bucket main body can be reduced, and the ash grabbing efficiency is improved at the same time.

The utility model discloses a liftable garage ceiling lamp convenient to overhaul for a subway garage. The garage ceiling lamp comprises a fixed base, a hanging rod, a socket base, an outer framework, a lamp, a mechanical automatic retractor, a hanging rope and a power cable of the lamp. The suspender is vertically and fixedly connected to the bottom of the fixed base; the outer framework covers the lamp, and the socket base is arranged at the top of the outer framework and fixedly connected with the outer framework and the lamp. The mechanical automatic winder comprises a first automatic winder matched with the lifting rope and a second automatic winder matched with a power cable of the lamp; when the outer framework pulls down the lamp under the action of external force, the first automatic retractor and the second automatic retractor act to store energy, and the main stress is the lifting rope; and after the external force disappears, the first automatic retractor and the second automatic retractor automatically return to original positions, and the socket base is in socket connection with the suspender. Pure mechanical design is adopted, the lamp can be pulled down and automatically reset and fixed, climbing operation is not needed during overhauling, an electric device is not needed for the lifting function, and electrical potential safety hazards do not exist.

The application provides a wind turbine blade clearance distance monitoring method and a monitoring system, and the method comprises the following steps: obtaining a blade tip initial coordinate value and a tower initial coordinate value when a target blade passes a front face of a tower; processing the blade tip initial coordinate value and the tower initial coordinate value to obtain a blade tip target coordinate value and a tower target coordinate value of the target blade; and calculating a current clearance distance between the target blade and the tower at a preset position according to the blade tip target coordinate value and the tower target coordinate value. The monitoring method can monitor the current clearance distance between the target blade and the tower at the preset position in real time, and ensure the safety of the unit. When the current clearance distance is less than a preset clearance threshold, the pitch mechanism is started by using the method, which is beneficial to the design of the tower and the blade with a clearance setting margin in the whole machine design process, and can greatly reduce the design cost of the whole machine.

The utility model relates to the field of experiment machines, in particular to an anti-bending experiment machine with a cleaning structure, which comprises a bottom shell, a support frame is arranged at the top of the bottom shell, a processing structure is arranged outside the support frame, a rotating block is arranged on one side of the bottom shell in a penetrating manner, a gear block is arranged outside the rotating block, and a cleaning structure is arranged on the gear block. And a gear plate meshed with the gear block is arranged outside the bottom shell, and a handheld block is rotationally arranged outside the rotating block. According to the anti-bending testing machine designed by the utility model, through a series of ingenious mechanical transmission structures, objects falling from the bottom can be efficiently cleaned. When cleaning is needed, an operator only needs to manually move a handheld block, through meshing transmission of a gear block and a gear plate, a friction brush outside a rotating roller makes contact with a bottom block and rotates, and therefore auxiliary cleaning is conducted on objects at the bottom of a bottom shell. Meanwhile, the rotation of the rotating block controls the one-way valve to reciprocate through the reciprocating thread.

The utility model relates to the technical field of manipulators, and discloses a multifunctional manipulator for mechanical design and manufacture, which comprises a mechanical arm, the side wall of the mechanical arm is fixedly connected with a connecting table, the side wall of the connecting table is provided with a lifting assembly, the bottom of the connecting table is provided with a dismounting assembly, and the lifting assembly comprises a motor. The motor is fixedly connected to the side wall of the connecting table, the output end of the motor is fixedly connected with a transmission wheel, the transmission wheel is rotationally connected into the connecting table in an up-down perpendicular mode, the outer wall of the transmission wheel is slidably connected with a synchronous belt, and the outer wall of the synchronous belt is fixedly connected with a connecting piece. In the utility model, the supporting table on the side wall of the connecting piece is further driven to move through the displacement of the connecting piece, and then the supporting table drives the fixed column at the bottom of the supporting table to push and pull the fixed table, so that the bottom of the fixed table is lifted with higher perpendicularity, thereby effectively reducing the machining error; and the quality indexes such as the size precision, the shape precision and the surface roughness of the product can reach higher standards.

The utility model relates to the technical field of box filling machine design, in particular to a box filling machine convenient to adjust. Comprising a mechanical arm assembly used for clamping and placing objects to be encased, and a moving and cutting assembly connected with the mechanical arm assembly and used for driving the mechanical arm assembly to reciprocate and vertically ascend and descend at a clamping station and an encasing station. The mechanical arm assembly comprises a connecting column connected with the moving and cutting assembly, a first connecting plate installed at the bottom of the connecting column, a second connecting plate installed below the first connecting plate, four suction cups installed at the corners of the lower portion of the second connecting plate and a mechanical arm installed on the first connecting plate and connected with the second connecting plate. And the driving unit is used for driving the four suction cups to be close to or far away from the center of the second connecting plate.