10105 results about "Chassis" patented technology

The present invention belongs to the technical field of anchor protection apparatuses. Provided is an automatic anchor protection platform having combined support of anchor rods and anchor cables. The automatic anchor protection platform comprises a movable chassis, a multi-cycle anchor rod drilling rig, an anchor rod drilling rig posture positioning control device, an anchor cable support device, a temporary support device, an electrical system and a hydraulic system. Said automatic anchor protection platform integrates the multi-circle anchor rod drilling rig, the anchor cable support device and the temporary support device, and therefore meets the anchoring and support requirements of roadways under different geological conditions, allows anchor rod and anchor cable parallel support operations to be conducted at the same time, and achieves efficient coordinating matching linkage integrated design, thus further promoting efficient operation processes in limited spaces such as coal mines and tunnels.

The invention belongs to the field of metal materials, and particularly relates to a high-strength hot-rolled pickled steel plate for an automobile chassis and a production method thereof. The steel plate is mainly suitable for manufacturing automobile chassis structural parts. The steel comprises the following chemical components: C, Si, Mn, Al, V, Ni, Cu, Cr, Pt and Y, P is limited to be less than or equal to 0.015%, S is limited to be less than or equal to 0.005%, N is limited to be less than or equal to 0.006%, and the balance is Fe and inevitable impurities. The yield strength of the steel plate ranges from 498 MPa to 552 MPa, the tensile strength ranges from 608 MPa to 643 MPa, the transverse elongation A ranges from 33% to 38%, the steel plate is qualified after transverse cold bending by 180 degrees D = a, the surface quality is good, oxide scale stripes and chromatic aberration defects are avoided, the surface roughness Ra ranges from 1.10 micrometers to 1.35 micrometers, and the steel plate has excellent corrosion resistance.

The invention belongs to the field of metal materials, and particularly relates to a 448 MPa grade hot-rolled pickled steel plate for an automobile and a production method of the 448 MPa grade hot-rolled pickled steel plate. The steel plate is mainly suitable for manufacturing automobile chassis structural parts. The steel comprises the following chemical components: C, Si, Mn, Al, Nb, Ta, Zr and Y, P is limited to be less than or equal to 0.015%, S is limited to be less than or equal to 0.005%, N is limited to be less than or equal to 0.003%, and the balance is Fe and inevitable impurities. The yield strength of the steel plate is larger than or equal to 308 MPa, the tensile strength is larger than or equal to 448 MPa, the transverse elongation A is larger than or equal to 42%, the hole expansion rate is larger than or equal to 125%, transverse cold bending is conducted by 180 degrees, D = a, the steel plate is qualified, the surface quality is good, oxide scale stripes and chromatic aberration defects are avoided, the surface roughness Ra is 1.00-1.40 micrometers, and the steel plate has good corrosion resistance.

The invention relates to the technical field of machining and conveying, and discloses a case machining and conveying device which comprises a workbench, conveying tables are symmetrically and fixedly connected to the top of the workbench, two conveying belts are arranged between the two conveying tables in a transmission mode, a plurality of conveying rollers are arranged between the two conveying belts, and the two ends of each conveying roller are rotationally connected with the inner walls of the conveying tables. Placing plates are arranged above the conveying belt and the conveying roller, limiting blocks are symmetrically and fixedly connected to the tops of the placing plates, an inclination assembly and a vibration assembly which are used for driving the placing plates to incline twice are arranged on one side of the conveying roller, the placing plates obliquely rotate towards one side through the inclination assembly, and after chippings on the side completely fall off, the vibration assembly is used for vibrating the chippings on the side. Then inclined rotation is carried out towards the other side, so that the chippings scattered on the surface of the machine box or the placement plate naturally fall off; and through two times of inclination in different directions, it can be ensured that chippings on the surfaces of the case and the placement plate are cleaned more thoroughly.

The present invention provides a folding trolley, which includes a bottom frame folding and unfolding assembly, a front wheel assembly and a rear wheel assembly. Side frame folding and unfolding assemblies are provided on both sides of the bottom frame folding and unfolding assembly, the bottom frame folding and unfolding assembly can be unfolded or folded through the side frame folding and unfolding assembly; one end of the side frame folding and unfolding assembly is connected with the front wheel assembly, the middle part of the side frame folding and unfolding assembly is connected with the bottom frame folding and unfolding assembly, and the other end of the side frame folding and unfolding assembly is connected with the rear wheel assembly. The invention provides a folding trolley, which overcomes the defects of an existing trolley with low load bearing capacity and poor functionality.

The embodiment of the invention provides a case and computing equipment, the case is applied to the computing equipment, the case comprises a shell, the computing equipment comprises a computing module, a power supply module and a pipeline group which are arranged in the shell, the computing module comprises a liquid cooling module and a computing force plate, the liquid cooling module is provided with a cooling flow channel for a cooling medium to flow, and the cooling flow channel is provided with a liquid outlet. The cooling flow channel is communicated with the pipeline group, a containing cavity and a pipeline cavity are defined in the case, the containing cavity is used for containing the calculation module and the power module, and the pipeline cavity is used for containing the pipeline group, so that the calculation module, the power module and the pipeline group are integrated, maintenance is easy, and occupied space of the case is reduced; and the appearance of the case is neater and more attractive.

The invention relates to the technical field of non-metal waste treatment, in particular to recycling equipment for plastic defective products. In order to solve the problem that when a pipe rolls during crushing, the residence time of materials in a crushing cavity is prolonged, and the crushing efficiency is low. Comprising a bottom frame, a crushing shell is fixedly connected to the bottom frame, a connecting and guiding shell is fixedly connected to the crushing shell, a crushing roller set is arranged in the crushing shell, a motor is fixedly connected to the bottom frame, transmission is conducted between an output shaft of the motor and the crushing roller set through a belt wheel and a belt, extrusion rollers distributed in a mirror image mode are rotationally connected to the crushing shell, and the extrusion rollers are connected to the crushing shell. And the extrusion rollers in mirror image distribution are in transmission through a gear set. According to the pipe crushing device, a pipe is pre-compressed in advance through the extrusion rollers when the pipe is crushed, a cylindrical pipe is compressed into an elliptic cylindrical pipe, then vertical feeding crushing is conducted, the rolling probability of the pipe during crushing is reduced, and the crushing efficiency of the pipe is improved.

The invention belongs to the field of metal materials, and particularly relates to a high-elongation 288MPa-grade hot-rolled pickled steel plate for an automobile and a production method thereof. The steel plate is mainly suitable for manufacturing automobile chassis structural parts. The steel comprises the chemical components of C, Si, Mn, Al, Ti, Zr, Ni, Pt and Y, P is limited to be smaller than or equal to 0.015%, S is limited to be smaller than or equal to 0.005%, N is limited to be smaller than or equal to 0.003%, and the balance is Fe and inevitable impurities. The steel plate has excellent mechanical properties, the yield strength of the steel plate is larger than or equal to 238 MPa, the tensile strength is larger than or equal to 288 MPa, the transverse elongation A is larger than or equal to 48%, the hole expansion rate is larger than or equal to 132%, transverse cold bending is conducted by 180 degrees, D = a, the steel plate is qualified, the surface quality is good, oxide scale stripes and chromatic aberration defects are avoided, the surface roughness Ra is 1.08-1.48 micrometers, and the steel plate has good corrosion resistance.

The invention relates to a vehicle trajectory tracking control method considering dynamic motion requirements. Comprising the following steps: 1, establishing a nonlinear vehicle dynamics model by comprehensively considering longitudinal motion, lateral motion and yawing motion of a vehicle; 2, searching saddle node bifurcation points with qualitative change of the stability state of the vehicle through a particle swarm optimization algorithm and a Lyapunov criterion, and constructing a dynamic stability domain boundary of the vehicle under the change of the longitudinal vehicle speed and the road adhesion coefficient; and 3, designing a vehicle multi-target trajectory tracking controller based on a nonlinear model predictive control theory, quantitatively evaluating the stability state of the vehicle by adopting a stability index, and meanwhile, designing a controller built-in parameter adjustment strategy to match the dynamic motion requirements of the distributed driving electric vehicle in different stability states. According to the method, the driving safety and the movement comfort of the distributed driving electric automobile are effectively ensured, and a set of solution is provided for realizing the optimal cooperative control of the chassis subsystem of the automatic driving automobile.

The invention relates to the technical field of environmental air detection, in particular to an environmental air quality detection device and a detection method thereof.The environmental air quality detection device comprises a base, and a case is fixedly mounted at the top of the base. Through the dual protection mechanism of the air inlet mechanism and the cleaning module, the air quality detection accuracy can be effectively guaranteed, in the specific detection period, induced draft fan blades rotate forwards to form negative pressure to suck air, an exhaust window assists in exhausting air, it is ensured that airflow is stable, and after a detection task is completed, an automatic cleaning program of the air inlet mechanism is started; the cleaning frame and the front cleaning group cooperatively operate to scrape dust on the inner walls of the induced draft fan blades and the air inlet pipe and prevent residual dust from falling off and being mixed into air in subsequent detection, meanwhile, the cleaning module continuously sprays, and under the action of countercurrent air driven by reverse rotation of the induced draft fan blades, cleaning liquid fully covers the air inlet pipe and the induced draft fan blades and dissolves dust and oil stains, so that secondary pollution is avoided; and air entering the case is ensured to be clean, so that real and reliable detection data is ensured.

The invention relates to the technical field of milling machining, and particularly discloses a CNC lathe reinforced milling device which comprises a machine box, a first adjusting mechanism is fixedly installed on one side of the machine box, a milling machine is fixedly installed at the top of the first adjusting mechanism, and a milling cutter is installed at the output end of the milling machine through a screw. According to the technical scheme, in the application period, by arranging the clamping assembly, the multiple adjusting mechanisms and the cleaning assembly, workpieces of different specifications can be stably clamped, the relative position of a milling tool and the workpieces and the machining angle of the workpieces can be flexibly adjusted, chippings can be efficiently cleaned in real time, and the machining efficiency is improved. The problems that in the prior art, a milling mechanism is limited in adjustment, a clamp cannot be turned over, and chippings are difficult to clean are solved, the situation that positioning errors and machining precision are affected is avoided, the burden of operators is reduced, the machining stability, efficiency and quality are improved, and diversified machining requirements are met.

The invention relates to the technical field of insertion and extraction force testing, and discloses a detection device and method for automobile exterior trimming part assembling, and the device comprises a bottom frame, a tension testing assembly, a vibration mechanism, and an extrusion mechanism, the vibration mechanism comprises a gear-missing column, a moving plate, a first electric push rod, a placing plate, and a vibration spring, and the bottom frame is provided with a sliding groove. The moving plate is slidably connected into the sliding groove, the first electric push rod is fixedly installed in the sliding groove, the output end of the first electric push rod is fixedly connected with the side wall of one end of the moving plate, one end of the vibration spring is fixedly connected to the bottom frame, the placing plate is fixedly connected to the other end of the vibration spring, and a mounting block is arranged on the bottom frame. According to the device, the vibration mechanism and the extrusion mechanism are matched, so that the bumper support on the placement plate continuously shakes, various road surface vibrations borne by an automobile in the driving process are simulated, and the reliability of the buckle under long-term vibration is accurately evaluated.

A portable folding wagon includes wheel components, four damping elements, a foldable load-bearing bottom frame, a foldable main frame, a telescopic handle assembly and a cloth basket. The wheel components include two fixed wheels arranged at a rear part of the portable folding wagon and two universal wheels arranged at a front part of the portable folding wagon. The foldable load-bearing bottom frame includes two lower rear connectors, two lower front connectors and an X-shaped folding load-bearing frame. The fixed wheels are arranged below the lower rear connectors through the damping elements, and the universal wheels are arranged below the lower front connectors through the damping elements. The damping elements include one or more of damping springs, cylinder dampers or variable damping force shock absorbers.

The invention discloses a Mecanum wheel omnidirectional robot anti-interference control method and system, and relates to the technical field of robot anti-interference control, and the method comprises the steps: collecting multi-source original data, and carrying out the preprocessing; multi-source data fusion is carried out, a current operation condition is identified based on a fusion result, and an augmented state is generated; calculating a baseline control instruction; inputting to the reinforcement learning agent, and outputting a corresponding compensation instruction; adding the baseline control instruction and the compensation instruction to obtain a candidate control instruction; inputting to the security constraint projector, and correcting to obtain a final control instruction; issuing to a motor driver of the Mecanum wheel for execution; and actual state data of the executed robot is collected as execution feedback data, and the execution feedback data and a new target instruction are used for generating standardized observation data at the next moment. According to the invention, cross-working-condition high-precision, fast-recovery, low-energy-consumption and compliant-constraint omnidirectional chassis anti-interference control is realized, and the tail robustness and the system safety and reliability are improved.

The utility model discloses a battery replacing device which comprises a supporting frame and a battery replacing body, and the battery replacing body can incline relative to the supporting frame. The battery replacing main body comprises a movable assembly which is arranged on the supporting frame and can ascend and descend and a compartment body which is rotatably connected with the movable assembly, a telescopic mechanism is arranged in the compartment body, and a battery replacing mechanism is arranged on the top surface of the telescopic mechanism; and the telescopic mechanism can move relative to the compartment body and / or the battery replacing mechanism can move relative to the telescopic mechanism in the direction perpendicular to the telescopic direction. By the adoption of the structure, the battery replacement equipment can achieve vehicle side battery replacement and can adapt to different battery replacement vehicles and battery storage devices through lifting and rotating of the compartment body; and meanwhile, through calibration movement of the telescopic mechanism and / or the battery replacing mechanism and inclination of the battery replacing body relative to the supporting frame, the battery replacing mechanism can be well attached to a chassis of the battery replacing vehicle all the time, and therefore the battery replacing precision and the battery replacing efficiency can be improved.

The invention relates to the technical field of picking vehicles, and particularly discloses a guardrail locking mechanism and a picking vehicle, the guardrail locking mechanism comprises a positioning block, a first elastic piece, a locking piece and an unlocking piece, the positioning block is fixed at the bottom end of a guardrail and synchronously rotates along with the guardrail, and the positioning block is arranged in a containing groove of an operation platform and is provided with a first limit position and a second limit position; the first elastic piece is connected with one end of the positioning block and drives the positioning block to move towards the limiting position, the locking piece is arranged on the operation platform in a lifting mode, when the positioning block is located at the first limiting position, the lower end of the locking piece can be inserted into the containing groove to be attached to and locked with one side of the positioning block, the unlocking piece penetrates through the operation platform in the vertical direction, and the upper end of the unlocking piece is connected with the locking piece. When the operation platform descends to the first preset height, the lower end of the unlocking piece abuts against the bottom frame and moves upwards, the locking piece is driven to be separated from the containing groove to unlock the positioning block, the guardrail can be automatically unlocked when the operation platform descends, and the operation safety and convenience of the picking vehicle are improved.

The utility model relates to the technical field of gas extraction, in particular to an underground gas extraction blowout preventer, and mainly solves the technical problems that the existing gas extraction blowout preventer is high in spewing control difficulty, high in safety risk and high in sprayed slag cleaning workload. The device comprises a movable chassis, a deslagging box, a multi-way pipe, a drilling machine through pipe, a coal seam drilling pipe, a negative pressure pipe, a pressure relief buffer cover, a deslagging pipe and a pressure sensor. According to the device, gushing is detected through the pressure sensor, on-off of the negative pressure pipe and the slag discharging pipe is controlled in a feedback mode, dependence on manual experience is not needed, it can be guaranteed that gushing and corresponding equipment are started consistently, and the gushing control difficulty is greatly reduced; meanwhile, water and residual materials for slag spraying can be discharged into the slag discharging box through the slag discharging pipe in time to be collected, and the workload of slag spraying and cleaning is reduced; the device is further provided with a pressure relief buffer cover, when the pressure is too large due to gushing, buffering can be conducted through the pressure relief buffer cover, and damage to the device caused by the too large pressure is avoided.

A hinge barrel air duct has an elongated body configured to be positioned adjacent to the top panel of an information handling system having a chassis to which the top panel is pivotally connected by a hinge assembly. An exhaust intake is formed in a region of the elongated body of the hinge barrel air duct. The exhaust intake receives exhaust airflow expelled from the chassis. An exhaust outlet is formed in another region of the elongated body of the hinge barrel air duct. The exhaust outlet redirects exhaust airflow away from the chassis.

The invention relates to the technical field of automobiles, and provides an automobile chassis suspension damping device which comprises a working cylinder, a multi-stage damping execution unit is arranged in the working cylinder, the multi-stage damping execution unit comprises a plurality of movable damping assemblies which are sequentially arranged in the axial direction of the working cylinder, and a fluid channel structure is arranged in each damping assembly. According to the invention, the defects in the prior art are overcome, the design is reasonable, the structure is compact, accurate grading adjustment of damping force under different vibration amplitudes is realized by arranging the three movable damping assemblies and the stepped distributed fluid channel structure, when a vehicle runs on a stable road surface, only the first piston cooperates with the spiral spring to work, the damping force is small, and the damping effect is good. The daily stable road condition requirement is met; when the vehicle runs on a bumpy road surface, the second piston and the third piston are triggered in sequence along with the increase of the vibration amplitude, the damping force is gradually increased, and the comfort of people in the vehicle is greatly improved when the vehicle runs under different road conditions.

The invention discloses an automobile driving state blind area monitoring method and a rearview mirror, and relates to the technical field of blind area monitoring. Comprising the following steps of information collection, specifically, sensors and cameras are installed on wheels of an automobile, a steering wheel steering column, an automobile chassis and a steering system respectively, driving state data of the automobile speed, the steering wheel angle, the automobile acceleration and the steering angle and image data around the automobile are collected in real time, and real-time automobile information data are obtained; according to the system, driving state data such as the vehicle speed, the steering wheel angle, the vehicle acceleration and the steering angle are combined, the blind area around the vehicle is monitored in real time through the sensor and the camera, and when the vehicle steers, the blind area monitoring range is adjusted in real time to adapt to the driving direction change; the rearview mirror can display blind area images in real time, the blind area alertness of a driver can be greatly improved, and the traffic accident risk caused by the blind area is effectively reduced.

The utility model provides a welding device for automobile seat production, which comprises a bottom frame, supporting plates are symmetrically arranged at the upper end of the bottom frame, the upper ends of the supporting plates are jointly connected with a top plate, a welding assembly is arranged on the lower side wall of the top plate, and a clamping assembly for clamping an automobile seat is arranged in the middle of the bottom frame. The clamping assembly comprises first telescopic push rods arranged at the left end and the right end of the bottom frame, and the telescopic ends of the first telescopic push rods are both connected with clamping frames. According to the automobile seat positioning device, accurate transverse and longitudinal positioning can be provided for parts of an automobile seat, the placement position of the automobile seat is guided, it is guaranteed that the position relation between the parts is accurate before welding, and the welding quality is improved.

The invention relates to the technical field of building construction, and discloses a steel structure welding device for building construction, which comprises a bottom frame, the outer surface of the bottom frame is fixedly connected with a clamping mechanism, a square tube is clamped in the clamping mechanism, and the outer surface of the clamping mechanism is fixedly connected with a welding mechanism. The outer surface of the clamping mechanism is fixedly connected with a scraping mechanism, a first torsional spring is arranged to drive a first arc-shaped frame, a welding gun is made to be attached to the surface of the square pipe all the time, and tight welding can be conducted at the corner. The magnetic suction plate drives the rotating frame through magnetic force to ensure that the welding gun is perpendicular to the surface of the square tube, and welding quality is improved. The roller is matched with the magnetic component to realize stable sliding of the welding gun on the surface of the square tube; the arc-shaped plate drives the scraper to cling to the lower part of the square tube under the elastic action of the torsional spring to continuously remove surface impurities, thereby avoiding influencing the welding quality and ensuring the welding effect.

The utility model relates to the technical field of robots, and provides an omni-directional mobile intelligent robot comprising a multi-axis mechanical arm so as to improve the education popularization range of the omni-directional mobile robot comprising the mechanical arm. The three groups of steering wheels are mounted at the bottom of the mainframe box, the control panel and the battery are arranged at the top of the mainframe box, the mechanical arm is mounted at the front end of the mainframe box, and the storage device is arranged between the battery and the mechanical arm. A groove is formed in the front end of the main machine box, the bottom of the mechanical arm is installed in the groove, the mechanical arm comprises a plurality of steering engines, a lower arm connecting rod, an upper arm connecting rod and a lifting mechanism, multi-degree-of-freedom movement of the mechanical arm can be achieved, the coverage range of the tail end of the mechanical arm is enlarged, and meanwhile the tail end of the mechanical arm is provided with a clamping device to complete object grabbing operation. Mecanum wheels are adopted as the three sets of steering wheels, the steering wheels are arranged at equal intervals of 120 degrees, 360-degree steering and movement of the robot can be achieved, various sensors are integrated, and the obstacle avoidance and tracking functions can be achieved; the method is suitable for large-scale popularization education.

The utility model discloses a punch forming device for production of automobile chassis parts, which comprises a main body unit, the main body unit comprises a working table, one side of the working table is fixedly connected with an inclined support table, the other side of the working table is provided with a conveyor belt, one side of the conveyor belt is provided with a controller, the upper side of the working table is provided with an electric punching seat, and the upper side of the electric punching seat is provided with a punching device; the output end of the electric punching base is fixedly connected with an upper die, the surface of the electric punching base is fixedly connected with a stand column, and the stand column is fixedly connected with the side face of the workbench. By means of the arrangement, machined parts can be rapidly discharged, the to-be-machined parts can be fed in time, and the machining efficiency is effectively improved.

The utility model relates to the technical field of conveying equipment, in particular to an oil cylinder lifting frame of a conveying vehicle frame, which comprises a conveying vehicle bottom frame and a conveying vehicle top frame provided with walking wheel sets, and a first supporting arm and a second supporting arm which are mutually hinged are arranged between the conveying vehicle bottom frame and the conveying vehicle top frame. One end of the first supporting arm and one end of the second supporting arm are hinged to the conveying vehicle underframe and the conveying vehicle top rack correspondingly, and the other ends of the first supporting arm and the second supporting arm are in sliding fit with the conveying vehicle underframe and the conveying vehicle top rack correspondingly. The design of the oil cylinder lifting frame is introduced, so that the limitation of the fixed height design of a traditional conveying vehicle is effectively solved. The telescopic movement of the oil cylinder can flexibly adjust the height of the top rack of the conveying vehicle, so that the distance between the traveling wheels and the ground is adjusted to adapt to platforms with different heights and loading and unloading operation environments; when the conveying vehicle moves to a cargo loading and unloading area, the wheels can be lifted to be in contact with the ground, and the chassis of the conveying vehicle is fixed to the ground, so that the cargo loading and unloading stability is ensured.

The utility model discloses an exoskeleton robot testing frame, which belongs to the technical field of exoskeleton robot testing, aims at solving the problems of poor stability and inconvenience in height adjustment of exoskeleton robot testing, and comprises a bottom frame and a support frame, the support frame is fixed on the side wall of the top end of the bottom frame, and a plurality of mounting plates are fixed on the side wall of the bottom end of the bottom frame. Universal wheels are fixed on the side wall of the bottom end of the mounting plate; the top frame is fixed to the side wall of one side of the supporting frame, a lifting frame is arranged under the top frame, and a lifting assembly is arranged on one side of the supporting frame; through the arrangement of the lifting assembly, the height position of the exoskeleton can be adjusted according to field application requirements, so that a worker can conveniently mount and dismount the exoskeleton, the working efficiency of the work at the earlier stage of exoskeleton testing is greatly improved, the motion flexibility of the exoskeleton and the use performance of the testing frame are improved, and the testing frame is suitable for popularization and application. And the device is suitable for exoskeletons with different heights, and the adaptability is high.

The invention relates to the technical field of mine underground equipment, in particular to crawler-type high-gas coal seam drilling equipment based on a double-channel drill rod, which comprises a walking chassis, the double-channel drill rod, a hydraulic slotting system and a negative pressure deslagging device. Crawler-type composite drilling equipment is provided, process integration is carried out through breakthrough of three core technologies, directional drilling (a diamond drill bit and a spiral groove drill rod), hydraulic slotting and negative pressure deslagging are integrated into single equipment, the working procedure switching time is shortened, synchronous slotting and deslagging operation is achieved through a double-channel drill rod, and the working efficiency is improved. The problems of energy consumption and blockage are solved; and meanwhile, gas accidents are prevented.

The invention belongs to the technical field of automatic equipment, and particularly relates to a novel paper tube external inspection machine. The device comprises a machine case frame, an electric control placement space and a detection space are arranged in the machine case frame, the detection space is located below the electric control placement space, an electric control assembly is arranged in the electric control placement space, a feeding port and a discharging port are formed in the left end and the right end of the detection space, and one end, extending out of the feeding port, of the detection space is arranged in the detection space. According to the surface light type multi-angle defect detection device, through cooperative work of the camera detection assembly on the vertical guide shaft and the surface light source auxiliary assembly on the transverse guide shaft, multi-angle and all-directional detection can be carried out on defects such as pits and pits in the surface of a paper tube. The area light source lamp set provides uniform and stable illumination, the detection camera shoots images from multiple angles to form a stereoscopic image structure, and compared with a traditional single-angle detection mode, the detection precision is greatly improved, micron-sized tiny defects can be detected, and missing detection and false detection are effectively avoided.