112901 results about "Gear wheel" patented technology

The invention discloses a hydraulic pressure test tube machine and a tube body clamping centering device, in the tube body clamping centering device, two guide rods and a telescopic oil cylinder are arranged on a base side by side; corresponding ends of the two guide rods are respectively provided with a first sliding block, corresponding other ends of the two guide rods are respectively provided with a second sliding block; a fixed end of the telescopic oil cylinder is fixed on one end of the base, the fixed end of the telescopic oil cylinder is arranged corresponding to the second sliding blocks; a telescopic end of the telescopic oil cylinder is connected with the first sliding blocks, and is used for driving the first sliding blocks to slide along the guide rods, one of two clamping blocks is fixed on the two first sliding block, and the other one of the two clamping blocks is fixed on the two second sliding blocks; the first sliding block on one of the two guide rods is provided with a first rack, the second sliding block on the other one of the two guide rods is provided with a second rack, both sides of a linkage gear are respectively meshed with the two racks, the first sliding blocks and the second sliding blocks are adjusted by the telescopic oil cylinder to move towards each other or depart from each other. The scheme can solve the problems of high control precision and slow regulation efficiency of a plurality of oil cylinders of the tube body clamping centering device.

The present invention belongs to the technical field of machining and punching, and in particular relates to a surface pressurized punching device for anode plate machining. The surface pressurized punching device comprises a workbench of a table structure, a machine unit mounted on one side of the workbench, and a rack welded to the table top of the workbench, wherein an operation platform is fastened to the table top of the workbench and inside the rack by means of bolts, and clamping plates which are oppositely arranged are slidably mounted on two sides of the surface of the operation platform; and a hydraulic cylinder is mounted at the center of the surface of the rack, and an output shaft of the hydraulic cylinder running into the rack is fixedly connected to a drill rod by means of a coupler. By means of providing a reaming assembly, an electric motor B is controlled by an external power supply to operate while the hydraulic cylinder drives the drill rod to move, such that the electric motor B drives, by means of a gear A and a chain, a gear B to rotate synchronously while the electric motor B moves with the drill rod by means of an outer frame, thereby driving the drill rod to rotate. Thus, the surface of the drill rod can rotationally grind and finish holes in an anode plate while the drill rod performs drilling, thereby reducing burrs.

The invention discloses a use monitoring method and system for a knife gate valve, and relates to the technical field of knife gate valve monitoring, and the method comprises the steps: integrating a multi-mode sensor array at the root of a valve rod of the knife gate valve, an adjacent region of a sealing surface and in a valve cavity flow channel, and collecting multi-source signals in real time; performing dynamic fusion processing on the multi-source signal, and determining a feature extraction algorithm combination based on the current valve rod temperature and historical working condition data to extract a sealing surface damage feature, a transmission chain wear feature and a particle impact feature; constructing a dynamic anomaly judgment model, updating a clustering boundary of a vibration and torque characteristic space in real time, and performing decoupling diagnosis on a sealing surface dry friction risk, thread clearance expansion and gear wear in combination with time-frequency domain fluctuation analysis of a gear meshing frequency harmonic attenuation rate and an angular acceleration; and generating a three-level maintenance strategy according to the diagnosis result, dynamically adjusting the output torque of the execution mechanism and optimizing the switching frequency of the valve.

The invention belongs to the technical field of robot control, and discloses a high-gear-ratio humanoid robot robust walking control method and system based on potential dynamics self-adaption, and the method comprises the steps: designing a control strategy training frame based on deep reinforcement learning, and carrying out the optimization through an Actor-Critic structure and a PPO algorithm; constructing a potential dynamic adaptive network LDAN, and extracting environment and ontology dynamic parameters through a variational auto-encoder; designing a multi-dimensional reward function; constructing a periodic gait library by using von Mises distribution and motion capture data; gradually introducing terrain disturbance and dynamic change through curriculum type simulation training; the trained strategy and the LDAN module are deployed on the high-gear-ratio driven humanoid robot, the problems that the high-gear-ratio humanoid robot is poor in motion stability, poor in adaptability and insufficient in action expression in a variable environment are solved, and the high-gear-ratio driven humanoid robot has the advantages of being high in robustness, high in natural expressivity and high in migration ability.

The invention relates to a deep integrated electric drive assembly design method and system, and the method comprises the steps: obtaining the parametric modeling data of an electric drive assembly, and carrying out the digital twin synchronous motor modeling, and obtaining a drive three-dimensional model; topological structure data of the electric drive assembly are obtained, and mixed algorithm optimization calculation is carried out on the topological structure data and the drive three-dimensional model to obtain a system optimization solution set; performing model prediction control construction based on the system optimization solution set, and performing gear contour line modification processing on the electric drive assembly to obtain a speed reduction transmission strategy; performing heat dissipation management extraction optimization on the system optimization solution set according to a preset variable cross-section micro-channel heat dissipation algorithm to obtain a dynamic heat dissipation strategy; preliminarily integrating the speed reduction transmission strategy and the dynamic heat dissipation strategy to obtain an initial design scheme; eMI filtering optimization is carried out on the initial design scheme, multi-stage electromagnetic shielding construction is carried out, and a system performance optimization scheme is obtained. The comprehensive performance of the system can be improved through integral design, regulation and control.

An adjustable dumbbell, comprising a dumbbell assembly, a dumbbell seat and dumbbell pieces, the dumbbell assembly comprises a dumbbell bar and connecting discs, which are provided with a positioning groove and a connecting block slidingly connected in the positioning groove, and the connecting disc is provided with an elastic component; the dumbbell assembly comprises a handle grip and gear blocks, and the glove and the gear block are fixed circumferentially, and the gear block has an outwardly pushing part and an inwardly shrinking part in the circumferential direction; the dumbbell piece is provided with a connecting groove, when the connecting block abuts against the shrinking part, the connecting block is separated from the connecting groove; the connecting block abuts against the pushing part, the connecting block is snapped into the connecting groove; when the connecting block abuts against the shrinking part, the connecting block is separated from the connecting groove.

The invention belongs to an electromechanical braking system in the technical field of vehicles, and discloses a driving and parking braking torque mutual coupling redundancy electromechanical braking system which comprises a brake assembly, an MGU and shell, a driving braking motor and gear reducing mechanism assembly, a gear system bearing support and an ECU controller assembly. The service braking gear reduction mechanism assembly comprises a service braking first-stage reduction gear train mounting mechanism, a second-stage reduction gear train mounting mechanism and a bearing, and the parking braking gear reduction mechanism assembly comprises a parking first-stage reduction worm and gear mechanism, a second-stage reduction worm and gear mechanism and a mounting bearing. The braking torque of the driving braking and the braking torque of the parking braking are mutually coupled, the two systems can share the braking output gear shaft assembly, the driving braking and the parking braking can be independently operated, and meanwhile the parking braking can assist the driving braking when needed. By means of the design, the safety and reliability of the braking system are improved.

An energy-saving and environment-friendly park air monitoring device, comprising a stand (1), a detection apparatus body (2) being mounted on the stand (1) by means of a first mounting bracket, and a solar panel (3) being further mounted on the stand (1) by means of a second mounting bracket. A filter cylinder (21) is mounted on the detection apparatus body (2), a plurality of openings (4) being formed in the filter cylinder (21), a filter plate (5) being fixedly mounted in the openings (4). A dual-shaft motor (6) is fixedly mounted at the bottom of the filter cylinder (21). When dust and impurities adsorbed and accumulated on the filter plate (5) need to be removed, the dual-shaft motor (6) is started, the two output ends of the dual-shaft motor (6) rotate to drive a L-shaped rod (7) and a driving gear (8) to rotate synchronously, and the rotation of the L-shaped rod (7) can drive a cleaning brush (9) to clean the filter plate (5). In addition, by means of a transmission mechanism, the kinetic energy from the driving gear (8) can be transmitted to a blocking mechanism, so as to drive the blocking mechanism to rotate for blocking the openings (4), such that the dust raised during cleaning of the filter plate (5) is prevented from passing through the filter holes in the filter plate (5) and entering the filter cylinder (21), thereby avoiding contamination of a detection probe by the dust during the cleaning of the filter plate (5), and achieving a protective effect on the detection probe.

A drive device for an electric vehicle is provided for reducing the input speed of a motor and transmitting the reduced input speed to an output shaft. The device comprises a first planetary gear set comprising three first planetary gear elements, a first element connected to the motor and a second element connected to a first output shaft, a second planetary gear set comprising three second planetary gear elements, a first element connected to a third element of the three first planetary gear elements, a second element connected to a second output shaft, and a third element fixed, and a third planetary gear set comprising three third planetary gear elements, a first and a second element each connected to two elements of the three first planetary gear elements, and a third element connected to a torque vectoring motor.

The invention belongs to the technical field of wind power generation, and discloses a wind driven generator multi-drive variable pitch control method based on big data, which comprises the following steps of: constructing a multi-source data acquisition network covering an environment, a unit, a power grid and a driver, and combining preprocessing means such as denoising and standardization and feature extraction methods such as principal component analysis; high-quality input is provided for a short-term prediction model; the model can accurately pre-judge wind conditions and power requirements in the future 10-30 minutes, and is matched with a global optimization algorithm to dynamically adjust a variable pitch strategy, so that the wind driven generator can still keep stable power output under complex working conditions of gust, power grid fluctuation and the like, and particularly has outstanding performance in areas with unstable wind resources. According to mechanical coupling characteristics of the multi-drive variable pitch system, mechanical parameters such as a gear transmission gap and shafting rigidity are fully included in global optimization, and power output, mechanical fatigue and load distribution are balanced through a multi-objective optimization algorithm.

A multifunctional fixture for chip processing, comprising a supporting bottom box (1). A supporting platform (29) is fixedly connected to the top of the supporting bottom box (1), two sliding side boxes (6) are symmetrically and slidably connected to the top of the supporting platform (29), and rotating boxes (11) are rotatably connected to the inner sides of the two sliding side boxes (6). According to the multifunctional fixture for chip processing, a supporting frame and limiting plates are added to achieve auxiliary positioning and supporting of a chip that needs to be fixed for processing, manual lifting of the chip is not needed, and the safety of the chip is guaranteed; racks and gears are added, so that during movement, the racks are engaged with the gears for rotation, and the gears adjust the rotating angles of rotating rods and the rotating boxes, thereby adjusting the orientation angle of the chip on the fixture; and sliding top plates are added, so that when the sliding top plates move, the chip is fixed by the sliding top plates and the limiting plates, thereby improving the chip positioning effects.

A freewheel adjustable wheel of the present invention comprises: a rotary gear unit that is rotated by receiving power from a pedal part and is provided with a gear along the outer circumference thereof; a case part that supports the rotary gear unit to be rotatable; a clutch bearing that transmits the power to the case part when the rotary gear unit rotates in the forward direction; a clutch hub that rotates together with the rotary gear unit; clutch gears installed on the clutch hub and fixed to the case part; and a drive unit that supplies rotational power; and a moveable gear unit moved by means of the power of the driving unit.

A surface cleaning device is provided, comprising a cleaning head (12) with a cleaning head body (14), at least one cleaning roller (32) rotatable about a rotation axis (96), a drive motor (200) for the at least one cleaning roller (32), and at least one side cleaning tool (270) which is rotatable and / or oscillatable about at least one movement axis (294), wherein the at least one side cleaning tool (270) is coupled to the at least one cleaning roller (32) via a gear device (314) and wherein the rotation of the at least one cleaning roller (32) drives the movement of the at least one side cleaning tool (270) about the movement axis (294).

The invention relates to the field of gear turning and boring, particularly discloses a gear turning and boring device with a high-precision positioning function, and solves the problems that when an existing small-diameter gear is subjected to turning and boring machining, the clamping and positioning precision is low, the universality is poor, and turning and boring machining on a large-diameter gear cannot be compatible. Comprising turning and boring equipment, a base, a support, a support, sliding frames, semicircular grooves, metal clamping pieces, a frame body, sliding rods, a top plate, a first driving assembly, a disc, clamping seats and a sliding plate, second rotating rods are rotationally connected between the sliding plate and the clamping seats, the sliding frames are further provided with second driving assemblies, and the second driving assemblies are used for driving the sliding frames on the two sides to get close to each other. Or the sliding plate is driven to slide towards the disc. The device can be universally used for clamping and machining a large-diameter gear or a small-diameter gear, and is stable in clamping and good in universality.

An oil distributor for an axle drive of a motor vehicle, having a first trough element with a first wall, a second trough element which is placed onto the first trough element and has a second wall, wherein the first trough element and / or the second trough element has an oil capture opening; wherein in an assembled state, the first trough element is fluidically connected to the second trough element, and the first trough element and the second trough element form a U-shaped outer contour at least in portions such that the first trough element and the second trough element may surround portions of a gear wheel of a gear mechanism; and an oil outlet opening formed in the first trough element and / or the second trough element, via which an oil may emerge from the oil distributor.

The invention relates to the technical field of plastic pipe cutting machines, in particular to a plastic pipe cutting machine capable of improving pipe stability, comprising a workbench, and a cutting mechanism, a polishing mechanism and a driving mechanism mounted on the workbench; before the cutting mechanism cuts the plastic pipe, the plastic pipe can penetrate through the position between the two fixing rings, a cutting point can be placed in the middle of the position between the two fixing rings, the distance between the two fixing rings is adjusted through the driving mechanism, and due to the fact that a gear is meshed with a rack, the cutting point can be adjusted. Therefore, simultaneous radial movement of the racks arranged on the fixing ring in a circumferential array mode is achieved, clamping of the plastic pipe is completed, stability during cutting is guaranteed, and the problems that during cutting, a cutting opening is expanded, the plastic pipe at the cutting end inclines due to the gravity of the plastic pipe, cutting accuracy is affected, resistance during rotating and cutting is increased, and cutting quality is improved are solved. Random rotation during cutting is avoided, the clamped plastic pipe can rotate in the radial direction along with rotation of the second magnetic ring, all-directional cutting is achieved, and accuracy is improved.

A gas turbine engine includes a gearbox assembly that includes a gearbox and a gutter for collecting a gearbox lubricant scavenge flow from the gearbox. The gutter is characterized by a lubricant extraction volume ratio between 0.01 and 0.3. The lubricant extraction volume ratio defined by:VGVGB.VGis a gutter volume of the gutter and VGB is a gearbox volume. The gas turbine engine includes a lubrication system that includes a lubricant tank that stores lubricant, one or more primary gearbox lubricant supply lines, one or more secondary gearbox lubricant supply lines, and a lubricant pump for supplying the lubricant to the gearbox assembly through the primary gearbox lubricant supply lines and the secondary gearbox lubricant supply lines. The lubrication system modulates a mass flow rate of the lubricant to the gearbox assembly through the primary gearbox lubricant supply lines or the secondary gearbox lubricant supply lines.

A personal transport device convertible between a riding configuration and a stowed configuration is described. In one embodiment, a rear wheel and foot peg linking mechanism for the personal transport device includes foot pegs, including a first peg and a second peg, and a gear mechanism connected to the foot pegs. The gear mechanism is configured to rotate to move the foot pegs between an open position and a closed position. The rear wheel and foot peg linking mechanism also includes an arm connected to a rear wheel of the personal transport device and a post member extending outwards from the arm. The post member is configured to contact the gear mechanism to cause the gear mechanism to move the foot pegs from the open position to the closed position.

The invention relates to the technical field of metering pumps, in particular to an external meshing gear metering pump flow calculation method based on linear regression and curve fitting, which comprises the following steps: generating an integrated data set by monitoring the flow rate, pressure, temperature and viscosity in real time, setting flow rate, pressure and temperature thresholds based on the data set, judging the flow state and recording abnormity, and calculating the flow rate of the external meshing gear metering pump. Flow velocity and viscosity are selected for flow calculation, a corrected flow value is generated, whether flow is normal or not is analyzed and determined, a flow stability evaluation result is generated, and a visual interface is created to display parameters and a calculation result. According to the method, the multiple sensors are installed at the inlet and the outlet of the metering pump, the flow speed, the pressure, the temperature and the viscosity are monitored in real time, an integrated data set provides a precise basis for flow calculation, a threshold value is set, data are monitored, it is ensured that parameters exceeding the normal range can be recorded and analyzed in time, and the process improves the accuracy of flow calculation and improves the working efficiency. And flow evaluation is optimized, and the operation safety and efficiency are improved.

The invention discloses a buffering, shock-proof and anti-collision conveying box for precision equipment, and relates to the technical field of conveying boxes, the buffering, shock-proof and anti-collision conveying box comprises a specially-made wooden box body, a plurality of groups of shock-absorbing blocks are arranged in the specially-made wooden box body, a plurality of groups of shock-absorbing and anti-collision mechanisms are arranged in the shock-absorbing blocks, and a plurality of groups of screw rods are arranged in the specially-made wooden box body. A lead screw is arranged in the special wooden box body, an oblique bevel gear is fixed to one end of the lead screw, a transmission rod is arranged in the special wooden box body, and a plurality of sets of movable supports are arranged in the special wooden box body and meshed with the lead screw. During continuous slight vibration, the contact area is reduced, friction is reduced, meanwhile, a lead screw drives a damping block to be attached to equipment to eliminate resonance, a damping anti-collision mechanism is triggered to work through violent impact, a spring and a damper absorb energy, when the impact exceeds the limit, the damper drives a gear mechanism to open an air valve, and an air bag expands to absorb impact force; the sliding block sleeve guides the expansion direction of the air bag to prevent damage, and the whole system can be dynamically adjusted according to actual impact strength to effectively cope with vibration and impact in transportation.

The invention relates to an integrated oil cooling hub speed reduction electric wheel which comprises a motor, a planetary gear speed reducer and a bearing system which are arranged in the axial direction, and the planetary gear speed reducer is arranged in the motor and integrated with a brake. The bearing system comprises a rotor supporting bearing used for supporting a motor rotating system and a hub bearing used for supporting a wheel rotating system, the motor, the planetary gear reducer and the rotor supporting bearing are designed in an integrated oil cooling mode, and cavities where the motor, the planetary gear reducer and the rotor supporting bearing are located are communicated with one another. Cooling liquid cools and lubricates the motor, the planetary gear reducer and the rotor supporting bearing at the same time. Compared with the prior art, the electric wheel is compact in structure, the number of sealing pieces of the electric wheel can be reduced on the premise that the electric wheel has good structural rigidity, the axial size of an electric wheel assembly is reduced, and the electric wheel has the advantages of being good in cooling effect and easy to maintain.

An open and short circuit testing device and method. The device comprises a base (1), a support frame (2), a test board (5) and a placement frame (4). The test board (5) is slidably connected to the side opposite to the support frame (2), and the test board (5) moves downwards to drive a gear (14) to rotate; a limiting plate (17) is used for limiting reverse rotation of the gear (14); and a probe (26) is used for connecting to a circuit board to achieve testing. Under normal conditions, the friction force when the probe (26) is inserted into a wiring terminal (29) is less than the minimum elastic force of a second spring (25), when the probe (26) fails to be normally connected to the wiring terminal (29), the probe (26) is pressed downwards when a movable plate (23) moves downwards, the probe (26) is adjusted by means of the second spring (25) at the top of the probe (26), so that the probe (26) returns to normal, the pressure sensor (31) detects whether there is an abnormality, and when the second spring (25) at the top of the probe (26) is compressed, the pressure sensor (31) at the top of the second spring (25) measures an excessively large pressure value, i.e., indicating that a device abnormality occurs during the testing process rather than representing that there is necessarily a problem with the circuit board to be tested itself, thereby improving the accuracy of the testing result.

To achieve the above objective, the present invention provides the following technical solution: a handheld magnifier with an adjustable focal length, comprising an upper shell and a lower shell. The upper shell is equipped with a protection plate, a display screen, and a silicone key, while the lower shell contains a PVC film. A battery, a keyboard, a main board, a wave wheel, a sector gear, a lens assembly, and a light board are installed between the upper and lower shells. The lens assembly consists of an FPC cable, a chip, a guide fixing seat, a roller, a lens holder, a lens cover, and a glass sheet. Manual precise focusing is achieved through a mechanical transmission structure consisting of a wave wheel, sector gear, and spiral groove. This structure provides a wide adjustable range of clarity to accommodate observation needs at different distances.

The invention is suitable for the technical field of fault detection, and provides a fault detection method and device for a joint module and electronic equipment. The joint module comprises a motor, a speed reducer connected with the motor, a first encoder arranged between the motor and the speed reducer, and a second encoder arranged at the output end of the speed reducer. The fault detection method comprises the following steps: identifying a position difference between a rotor of the motor and an output shaft of the speed reducer based on the first encoder and the second encoder; and according to the position difference and a preset difference threshold value, whether the joint module has a fault or not is determined, and the difference threshold value is associated with the gear meshing clearance of the speed reducer. According to the embodiment of the invention, whether the joint module has a fault or not can be accurately detected.

The invention relates to the technical field of pipe welding, and discloses special welding equipment for an inner pipe connection type heat insulation oil casing, which comprises a welding table, a pipeline clamping mechanism is arranged at the top of the welding table, and the pipeline clamping mechanism comprises two rotating rings. During oil pipe machining, two oil pipes penetrate through the fixing rings to be connected, the electric telescopic rods drive the V-shaped clamping plates to clamp the oil pipes, and the driving motors enable the supporting rollers to support the oil pipes through the gears and the lead screws. The adjusting motor is matched with a related structure, so that the grinding wheel and the arc-shaped grinding piece are attached to oil pipes with different diameters. The grinding motor and the rotating motor work cooperatively to comprehensively grind the oil pipe, during welding, the oil pipe rotates at a constant speed to achieve uniform welding, and after welding, the grinding wheel and the arc-shaped grinding piece clean weld joints. In addition, in the polishing process of the equipment, a cleaning brush is driven to clean a polishing part through transmission of a gear and a chain, the polishing and welding quality is guaranteed, and the machining efficiency is improved.

The invention discloses horizontal internal thread tapping equipment, which relates to the technical field of tapping equipment and comprises a main body, a hydraulic mechanism, a clamping, lifting and overturning mechanism, a tapping mechanism, a liquid supply mechanism and a cooling and lubricating mechanism. Through workpiece overturning and tapping direction optimization, the problem of scrap accumulation in traditional tapping is thoroughly solved, when a hydraulic mechanism is used for driving a clamping, lifting and overturning mechanism to descend, an overturning gear is meshed with a toothed plate to drive a workpiece to overturn by 180 degrees, the bottom-to-top tapping action of a screw tap is matched, scraps naturally fall by means of the gravity effect, and the tapping efficiency is improved. Meanwhile, chippings are further scoured through precise spraying of the cooling lubricating liquid, the chippings are prevented from being retained on the surface of the threaded hole or the screw tap, by means of the design, the additional friction resistance of the chippings to the screw tap is reduced, the abrasion and fracture risks of the screw tap are reduced (the service life is prolonged by 30% or above), the problems of thread disorder, size out-of-tolerance and the like caused by chipping extrusion are solved, and the service life of the screw tap is prolonged. The thread machining precision and the surface quality are remarkably improved, and the workpiece rejection rate is reduced.

The invention discloses an inner blowout prevention tool nonmetal part tensile test tool and a test method thereof, and belongs to the technical field of tensile tests.The inner blowout prevention tool nonmetal part tensile test tool drives two test assemblies to conduct position exchange by switching a feeding assembly, so that a clamped sample can be smoothly located in an arc-shaped cover to conduct side tensile test operation, and the test efficiency is improved. Double-station switching type feeding operation is adopted, continuous feeding operation can be achieved in a reciprocating mode, the sample testing efficiency can be greatly improved through double-station switching type feeding, secondly, a protection plate in a switching feeding assembly can be matched with an arc-shaped cover to keep a closed machining area, the stretching safety is guaranteed, and in the rotating process of the testing assembly, the machining efficiency is greatly improved. And a rolling ball in a limiting assembly is driven to extrude the side edge of an arc-shaped cover, so that the rolling ball can push an upper second piston rod to move, the upper second piston rod can drive a third piston rod to move through hydraulic pressure, a clamping tooth plate is meshed with a third gear, the position of a stud can be locked, and therefore the clamping firmness of the sample can be effectively improved.

The invention relates to the technical field of steel box girder welding, and particularly discloses a steel box girder welding positioning device which comprises a fixing assembly fixed to a bottom plate and a positioning assembly connected with a web, and the positioning assembly comprises a bearing plate assembled on the fixing assembly in an up-down sliding mode and a first positioning piece for positioning the web front and back. The first positioning piece comprises a first clamping plate and a second clamping plate, the first clamping plate and the second clamping plate are assembled on the bearing plate in a front-back sliding mode to clamp the web, racks are arranged on the first clamping plate and the second clamping plate, guide gears matched with the racks are arranged on the bearing plate, and a guide rod is assembled on the bearing plate in a sliding mode, penetrates through the guide gears and is in threaded fit with the guide gears. A baffle is arranged at the end of the guide rod, a limiting plate is arranged on the fixing assembly, and an adjusting assembly used for adjusting the distance between the web and the bottom plate is arranged on the fixing assembly. The steel box girder welding positioning device has the effect of improving the welding quality.

The invention relates to the technical field of glass quality inspection, in particular to a turnover device for glass processing detection, which comprises a lifting mechanism arranged on a conveying device and a turnover frame rotationally arranged in the lifting mechanism, a sucker is arranged at one end, far away from a U-shaped frame, of the turnover frame, and the turnover device further comprises a direction adjusting mechanism for rotating glass when the glass is turned over. The protection mechanism is adopted, through the synergistic effect of a linkage plate, a telescopic arm and an air cylinder, the edge of the glass is automatically clamped after the glass is adsorbed by a suction cup and lifted, adsorption failure caused by high-speed overturning or oil contamination and unevenness of the surface of the glass is effectively prevented, the operation safety is remarkably improved, and the yield is remarkably increased. The direction adjusting mechanism is adopted, through the gear transmission design of the transmission shaft, the suction cup is synchronously driven to drive the glass to rotate and adjust the direction in the overturning process, accurate adjustment of the angle of the glass is achieved, manual secondary intervention is avoided, and the automation efficiency is greatly improved.