58results about How to "Save maintenance costs" patented technology

The utility model relates to the technical field of telescopic ejector pins, in particular to a novel teat connecting rod of a detachable movable telescopic ejector pin, which comprises a connecting pipe, a limiting ring is arranged at one end of the connecting pipe, an inner groove is arranged in the limiting ring, and an inner thread is arranged on the inner wall surface of the front side end of the inner groove. An inner thread is arranged on the center body, a limiting ring is arranged on the center body, a nipple end is movably connected to one side of the limiting ring, an end threaded rod is installed on the nipple end and is in threaded connection with the inner thread, and a movable end is connected into the nipple end. According to the scheme, the possibility that the whole connecting rod needs to be replaced due to abrasion of a sealing face of the nipple end and damage of the center body is reduced; the complexity and time for replacing the nipple end and the ejector pin body are reduced, the effect that the device is convenient to disassemble is improved, parts which are easy to damage can be rapidly replaced, the working efficiency is greatly improved, the effect that the device saves more maintenance and replacement cost is improved, and the situation of waste is reduced.

The utility model discloses a feed gear of a semiconductor slicer, which comprises a stepping motor and a driving rod arranged at the lower end of the stepping motor, a blade is arranged inside the outer wall of the lower end of the driving rod, and the outer wall of the front end of the driving rod is fixedly connected with the driving motor to drive the blade to rotate at a high speed. A fixing plate is arranged on the lower side of the blade, clamps are arranged on the positions, close to the left side and the right side, of the outer wall of the upper end of the fixing plate so as to clamp a semiconductor to be cut, and a stepping motor and a driving motor are electrically connected with an external power source. The vertical moving area of the driving rod in the stepping motor is shielded, dust and other small particles in air are prevented from entering the moving area of the driving rod, the abrasion and fault probability of mechanical parts are reduced, under the condition that the transparent cylinder a is used for protection, the cleaning frequency can be reduced, and the cleaning efficiency is improved. Therefore, the maintenance cost and time are saved.

The utility model relates to a PB film packaging device, which belongs to the technical field of MEMS chip packaging, and comprises a positioning tool and a PB film bearing plate, a plurality of PB film components are uniformly arranged on the PB film bearing plate, the plurality of PB film components are arranged in a matrix shape, each PB film component comprises an ePTFE layer, a supporting PI layer is arranged on the ePTFE layer, a first adhesive layer is arranged between the supporting PI layer and the ePTFE layer, and a second adhesive layer is arranged between the supporting PI layer and the ePTFE layer. According to the utility model, gluing is not needed, the efficiency is high, the reliability is high, and the problems of large equipment investment, low production efficiency and insufficient environment resistance of the traditional process are solved.

The invention relates to the technical field of spectral measurement, in particular to a spectral measurement beam combining device which comprises an input optical cable, a light gathering unit and an output optical cable which are sequentially arranged in the light path propagation direction. The N input optical cables are connected with the N lasers in a one-to-one correspondence manner; emergent ends of the N input optical cables are arranged in parallel so as to transmit laser emitted by the N lasers to the condensation unit in parallel; the light condensing unit converges N beams of parallel laser on an incident light path into one beam of light on an emergent light path; the output optical cable transmits a beam of light converged by the light condensing unit to the spectrograph; n is an integer greater than or equal to 1. According to the invention, the N laser beams emitted by the N lasers can be converged into one beam of light and then transmitted to the spectrograph, so that the N lasers share one spectrograph to carry out spectral measurement, the number of required spectrographs can be reduced, and the equipment purchase and maintenance cost is saved.

The utility model discloses a calibration mechanism for a wide-range torquemeter, which comprises a calibration arm connected with the torquemeter and used for transmitting and applying torque; the gradienter is arranged on the calibration arm and used for monitoring whether the calibration arm is in a horizontal state or not; the speed reducer is connected with the calibration arm through a force sensor, and the speed reducer provides power for vertical linear motion; one end of the first rotating connecting rod is movably connected with an output shaft of the speed reducer, and the other end of the first rotating connecting rod is connected with one end of the force sensor; one end of the second rotating connecting rod is connected with the other end of the force sensor, and the other end of the second rotating connecting rod is movably connected with one end of the calibration arm; through the above mode, the calibration error can be reduced, the operation difficulty in the calibration process can be reduced, the use of weights can be avoided, the calibration efficiency can be improved, and the calibration device can be suitable for the calibration of a wide-range torquemeter.

The utility model relates to the technical field of vehicles, and discloses a vehicle-mounted communication device and a vehicle. The vehicle-mounted communication device comprises a communication module and a mounting base, the mounting base comprises a base body and side plates, the two side plates are arranged on the two opposite sides of the base body in the first direction, the side plates and the base body jointly define a mounting space, at least one of the side plates and the base body is provided with a fixing structure, and the mounting space is used for containing the communication module; the mounting base fixes the communication module through a fixing structure. According to the vehicle-mounted communication device, the communication module can be prevented from shifting or falling off due to long-term vibration, and the installation stability of the communication module is improved.

The utility model provides a kind of vacuum bag type packaging sealing device, comprising: support;Workbench, it is fixedly installed on support upper end;Positioning plate, it is fixedly installed on support one side;Sealing group, it is set in workbench upper end;Limiting group, it is set in positioning plate one side.This kind of vacuum bag type packaging sealing device, by setting limiting group and the like structure, limiting group is conveniently operated by hydraulic rod, cooperate through-hole and connecting pipe, improve the efficiency of air extraction and connection stability, also have strong versatility;Heating plate can be detached in sealing group, it is convenient to maintain replacement, heating pipe and sealing plate cooperation realize reliable heat sealing, support rod guarantee pressing plate stability, electric telescopic rod realizes automatic sealing, reduce labor intensity, overall device is efficient, convenient, stable, can guarantee vacuum packaging quality, suitable for a variety of vacuum bag, improve the efficiency and reliability of packaging work.

This application relates to a pneumatic drive device for a sewing machine, including a first pneumatic cylinder, a thread cutting mechanism, a thread loosening mechanism, a second pneumatic cylinder, and a presser foot lifting mechanism. The first pneumatic cylinder is fixed to the machine body. The thread cutting mechanism includes a thread cutting module connected to and driven by the first pneumatic cylinder. The thread loosening mechanism includes a thread loosening transmission assembly and a thread loosening module actuated by the thread loosening transmission assembly. The thread loosening transmission assembly is connected to and driven by the first pneumatic cylinder. The second pneumatic cylinder is fixed to the machine body. The presser foot lifting mechanism includes a presser foot transmission assembly and a presser foot module actuated by the presser foot transmission assembly. The presser foot transmission assembly includes a first swing arm, and the second pneumatic cylinder directly drives the first swing arm. The first pneumatic cylinder drives the thread cutting module to cut the thread and drives the thread loosening transmission assembly to loosen the thread. The second pneumatic cylinder drives the presser foot transmission assembly to lift the presser foot module. This simplifies the overall structure and makes the device more compact.

The utility model discloses a kind of nuclear power plant safety shell inner anti-fragment jet impact wire slot devices, it is related to nuclear power plant safety system technical field.The utility model includes: protective shell, protective shell surface is connected with fixed component, inside is equipped with wire slot, and buffer component is connected between wire slot and protective shell inner wall;Buffer component includes stabilizing layer, absorption layer and buffer layer, and it is from inside to outside distribution, stabilizing layer inside fills memory alloy grid, absorption layer inside fills the elastic capsule of nanometer ceramic particle.The utility model is by setting protective shell and other structures, the concertina structure of protective shell, honeycomb pit and gradient composite steel material synergistic effect, from changing impact direction, dispersing energy to directly resisting and absorbing impact, form efficient first line of defense, the three-layer structure of buffer component is clear in division of labor, buffer layer, absorption layer, stabilizing layer weaken impact energy in turn and maintain structural stability, multi-dimension improves the ability of device to resist high-speed fragment jet impact.

This application discloses a wear-resistant spiral centrifugal pump suitable for various working conditions, belonging to the field of fluid pumps. It solves the problem in existing technologies where replacing the wear-resistant liner requires disassembling the volute casing, increasing maintenance time and costs. In this application, the shaft end is sequentially installed through the drive-side volute casing and the rear cover, and a spiral centrifugal impeller is provided therein. The suction-side volute casing includes a suction-side volute casing housing, a metal part, and a wear-resistant part. The metal part and the wear-resistant part are sequentially arranged from the suction side of the centrifugal pump towards the drive side. The surface of the wear-resistant part facing the spiral centrifugal impeller is fitted with the spiral centrifugal impeller. The metal part is attached to the side of the wear-resistant part away from the spiral centrifugal impeller and fixed to the suction-side volute casing housing with bolts. This wear-resistant spiral centrifugal pump, suitable for various working conditions, reduces production costs and saves maintenance time and costs.

The utility model relates to the technical field of ferrous metallurgy, and discloses a tundish slag dam raw material crusher which comprises a crushing platform, the top of the crushing platform is fixedly connected with a mounting frame, and a crushing and screening assembly is arranged on the surface of the top of the crushing platform. The crushing and screening assembly comprises a feeding hopper fixedly connected to the surface of the top of the mounting frame, crushing rollers are relatively rotatably connected to the interior of the feeding hopper through rotating shafts, and the surfaces of one ends of the two rotating shafts penetrate through the side wall of the feeding hopper and are fixedly connected with gears engaged with each other; a motor frame is fixedly connected to the surface of the side wall of the mounting frame, and a driving motor is fixedly connected to the surface of the top of the motor frame. According to the utility model, through the arrangement of the crushing and screening assembly, the equipment cost and the maintenance cost are saved, the whole crushing and screening processes can be synchronously carried out, the working efficiency is improved, the multi-stage screening of crushed raw materials is realized, and the quality and the consistency of products are improved.

The utility model belongs to the narrow space bolt tight loosening device of mechanical processing technical field. The device body (1) lower part sets up the nut clamping opening spare (2), the movable sleeve rotating arm (4) in the rotating hole (3) of device body (1) upper part, the rotating arm (4) upper end is rotating rod (5), the rotating arm (4) lower end is sleeve (6), and sleeve (6) is located the nut clamping opening spare (2) just above position. The utility model discloses the narrow space bolt tight loosening device, simple structure can realize the convenient tightening and loosening of equipment nut and bolt in narrow space, and can be reused, satisfies the operation demand.

The utility model relates to the technical field of electronic communication equipment, and provides an interphone, which comprises a shell with an accommodating space formed inside; the inner frame is totally or partially positioned in the accommodating space; a loudspeaker mounting position for mounting a loudspeaker, a microphone mounting position for mounting a microphone and a PCBA mounting position for mounting a PCBA are arranged on the inner frame, and the loudspeaker, the microphone and the PCBA are preassembled on the inner frame to form an inner frame assembly; the PCBA is electrically connected with the loudspeaker and the microphone, and the inner frame assembly serves as an independent assembling unit and is detachably connected with the shell. The loudspeaker, the microphone and the PCBA are preassembled on the inner frame to form the inner frame assembly, and compared with a traditional distributed assembly framework, only the inner frame assembly needs to be integrally and detachably connected with the shell, so that the assembly steps are reduced, and the assembly efficiency is improved; when a certain assembly breaks down, the whole inner frame assembly can be directly disassembled for inspection and maintenance, the disassembly and assembly workload is reduced, the maintenance difficulty is lowered, and the maintenance cost and time are saved.

This invention provides a heat exchange device for waste heat utilization and cold-end corrosion prevention, comprising an air inlet box, a heat exchange box, a negative pressure device, an air outlet main pipe, a hot air return pipe, and several heat exchange units. The heat exchange box has a waste heat channel. Each heat exchange unit has two ends connected to the air inlet box and the input end of the negative pressure device, respectively, and each heat exchange unit extends through the waste heat channel. The negative pressure device is connected to the air outlet main pipe. The air outlet main pipe is also connected to one end of the hot air return pipe. The other end of the hot air return pipe extends into the waste heat channel, then extends out from the waste heat channel and connects to the air inlet box, thereby returning a portion of the high-temperature air after heat exchange to the air inlet box. This heat exchange device can increase the air temperature drawn into the heat exchange units, preventing the formation of a corrosive ash layer at the cold end of the heat exchange units due to excessively low temperatures, completely solving the technical problem of corrosive ash accumulation inside the device, extending the service life of the heat exchange device, and saving maintenance and repair costs.

The invention relates to the field of intelligent testing, and discloses an anaesthesia machine testing method, device and equipment and a medium, and the method comprises the steps: controlling an anaesthesia machine to close an exhaust port of a mechanical ventilation loop of the anaesthesia machine, transmitting gas to the mechanical ventilation loop until the airway pressure of the mechanical ventilation loop reaches a preset testing pressure, stopping gas transmission, and maintaining a preset pressure stabilization duration, recording the initial pressure, the highest pressure and the end pressure in the gas transmission process through a pressure sensor of the mechanical ventilation loop; the gas conveying flow, the inspiration flow and the expiration flow in the gas conveying and preset pressure stabilizing duration maintaining process are collected; and according to the initial pressure, the highest pressure, the end pressure and the corresponding initial moment, the highest moment and the end moment, combining the gas transmission flow, the inspiration flow and the expiration flow, calculating the leakage rate of the mechanical ventilation loop and the pipeline compliance, and according to the leakage rate of the mechanical ventilation loop and the pipeline compliance, obtaining a test result. The problems of high test cost and complex operation of the anaesthesia machine in the prior art are solved.

This utility model belongs to the field of electrical safety technology, specifically relating to a power safety valve for preventing overload of electrical equipment. It includes an ammeter housing, a horseshoe magnet mounted at the bottom of the housing, pole shoes fixedly connected to the side wall of the horseshoe magnet, an electromagnetic induction device connected to a bearing in the lower middle part of the housing, a dial at the upper end of the housing, a battery mounted on the inner wall of the housing, a push-button switch mounted at the end of the battery, a conduit on the side wall of the housing, one end of the conduit connected to a circuit protection box, a switch box mounted at the bottom of the circuit protection box, a square hole in the center of the switch box, and a switching device inside the switch box. This utility model is reusable and automatically recloses, allowing for rapid power restoration via manual reset and automatic reclosing, eliminating the need for component replacement and saving maintenance costs and time.

The utility model belongs to the automobile body front end manufacturing and assembly technical field, concretely relates to a heat dissipation module of replaceable mounting column, including water room, mounting seat and mounting column, the mounting seat is provided with on the upper side of the column of water room left and right sides, mounting seat and water room integral injection moulding, the mounting column is inserted and is fixed in the mounting seat, the utility model discloses when using, the fixed weak point that the root of the roof column recess forms breaks when the vehicle collision, thereby protecting the other part of heat dissipation module, prevent the whole heat dissipation module from being damaged, reduce maintenance cost, and after the accident, in the repair point can use the tool oblique top spring piece buckle, make the root column exit mounting seat, and the new mounting column is inserted and can install, complete quick replacement, reduce the maintenance difficulty, save maintenance cost and time.

The utility model provides a kind of wafer epitaxy measuring device, it is related to precision machinery contact protection technical field.Wafer epitaxy measuring device includes support, drive arrangement, connecting rod and mercury-containing capillary, drive arrangement is fixedly installed on support;One end of connecting rod is fixedly connected with the moving end of drive arrangement, and the other end extends along horizontal direction;Mercury-containing capillary is fixedly arranged at the end of connecting rod away from drive arrangement, mercury-containing capillary is arranged at the underside of connecting rod, mercury-containing capillary extends towards the side away from connecting rod, the measuring end of mercury-containing capillary is provided with recess, recess is embedded with elastic washer, and elastic washer protrudes to the measuring end surface of mercury-containing capillary outside.The test device of the application can not only effectively reduce the indentation left by quartz mercury-containing capillary on wafer surface, improve yield, but also can alleviate the damage caused by foreign matter on wafer surface to mercury-containing capillary, save a lot of mercury-containing capillary replacement cost and maintenance cost.

This utility model discloses a wind-resistant structure for the crown of a high-rise building, including a mass block disposed inside the crown and steel cables disposed inside the crown, with the mass block suspended inside the steel cables. The mass block consists of an upper part, a middle part, and a lower part. The upper part consists of block A, block B, and block C. Block A is disposed on top of block B, and block C is disposed at the bottom of block B. An installation mechanism is provided at the connection between the top of block B and blocks A and C. By using a modular design, the mass block is divided into relatively small modules, reducing the requirements for manufacturing equipment, manufacturing difficulty, and cost. Compared with the integral type, the modular mass block has a smaller individual module size and weight, which can be transported using ordinary transportation tools, making it easier to cope with road height and weight restrictions, greatly reducing transportation difficulty and cost. At the installation site, the smaller modules are easier to operate and position.

According to the technical scheme, the mold for the extruded and puffed pet snacks is characterized in that the mold comprises an installation frame, a plurality of universal wheels are fixedly installed on the bottom face of the installation frame, a mold base is fixedly installed on the top face of the installation frame, and a mold barrel is arranged in the mold base; the shaping assembly is arranged in the mold barrel and used for shaping the shape of the pet snacks, by arranging the inner mold ring, when the device is used, in the process that the device is pushed to the position below an extruding machine, and the pet snacks are pressed and puffed, the special shape can be produced through the inner mold ring and the outer mold ring, and when the shape of the pet snacks needs to be changed, the shaping assembly is used for shaping the shape of the pet snacks. An operator can easily replace the inner mold ring or the outer mold ring only by screwing off the fixing bolts, various shaping effects are achieved through different combinations of the inner mold ring and the outer mold ring, the purchase cost of the mold is reduced, and the storage space and the maintenance cost of the mold are further saved.

This invention discloses an unlocking control method for a center-lock variable valve timing system, comprising: S1: After obtaining an unlocking command and meeting the unlocking conditions, proceeding to S2; S2: Obtaining the current duty cycle, controlling the current duty cycle for time t1 in an open loop, and obtaining the current phase of the camshaft in real time. If the phase difference between the current phase and the initial phase is greater than or equal to a deviation threshold, unlocking is successful, and the current duty cycle is controlled in a closed loop to adjust the current phase to the target phase; otherwise, unlocking fails, proceeding to S3; S3: Adjusting the current duty cycle to the first duty cycle time t2; S4: Adjusting the current duty cycle for time t3 according to the oscillation-assisted unlocking rule, and obtaining the current phase in real time. If the phase difference is greater than or equal to the deviation threshold, unlocking is successful, and the current duty cycle is controlled in a closed loop to adjust the current phase to the target phase; otherwise, unlocking fails, and a fault code is reported. This method can shorten the unlocking time under normal conditions and reduce overshoot, thus reducing the phenomenon of failure to unlock.

A flexible sealing connection mechanism for dedusting and sealing of an ore dressing vibrating screen comprises a vibrating screen body with a vibrating screen upper layer and a vibrating screen lower layer, a dust cover and two smooth steel plates, wherein the dust cover is arranged at the top of the vibrating screen body, and the outer surface of the dust cover is provided with a dedusting air pipe with one end extending into the vibrating screen body. A flexible UT type sealing device, a mounting piece set and a fixing bolt set are arranged outside the vibrating screen body, and two steel angles and a fence funnel are arranged at the bottom of the vibrating screen body, so that the sealing performance of equipment is remarkably improved, the service life of a flexible connecting piece is remarkably prolonged, dust in a body can be automatically collected, the working environment is improved, the structure is simple, and the maintenance cost and time are saved. And the method is easy to implement and maintain, and is suitable for various mineral separation scenes.

The utility model discloses a multifunctional integral plant lighting lamp relates to plant lighting lamp technical field, the utility model discloses a lamp outer casing body, the upper end of lamp outer casing body is open -mouthed and is located, and the closed support mechanism is arranged in lamp outer casing body, the lower end distribution of lamp outer casing body is provided with the lighting lamp, the whole of lamp outer casing body is square structure and is located, and the both ends of lamp outer casing body are provided with the inclined shape, and one of the inclined surface of lamp outer casing body is provided with the integrated air inlet of going in and out, and the inner wall of lamp outer casing body is provided with the integrated fan of positive and negative rotation on one side of integrated air inlet of going in and out. The utility model replaces the conventional plant lighting, ventilation, dehumidification separate arrangement, makes installation construction more convenient, greatly saves the construction and maintenance cost of planting factory, can also be convenient for staff to operate construction, and then can save manpower construction cost.

This utility model relates to the field of mattress technology. A novel mattress that combines comfort and quick disassembly and repair includes an elastic core and a mattress cover. At least three elastic cores are arranged horizontally inside the mattress cover, and each pair of adjacent elastic cores is detachably connected by a first connecting component. The mattress cover includes an upper cover and a lower cover, which are detachably connected by a second connecting component, forming a cavity for housing the elastic cores. The advantages of this utility model are: it facilitates quick and easy transport and movement, eliminating time and effort; it allows for precise repair or direct replacement of corresponding components, preventing the entire mattress from being discarded due to minor damage; the repair and replacement process is simple and convenient, greatly saving on transportation and repair costs; and the horizontal cavity also provides users with good sleep quality.

The utility model belongs to coal mine well fireproof door technical field, concretely relates to a coal mine underground fireproof polyvinyl chloride plate material, including the top crossbeam of embedding in the concrete wall of coal mine, door frame and door board, and the door frame is connected the top crossbeam through bolt fixing, and the door board is set up and is hinged with the door frame through the hinge, still including door closer and limiting component, and the door closer is symmetrically set up in the both ends of top crossbeam, and the door closer machine body is installed between the top crossbeam and the door board through screw, and the limiting component is symmetrically set up in the both ends of top crossbeam, and the limiting component is detachably connected in the lifting belt of hoisting equipment, and the limiting component is the U type limiting block of fixed connection top crossbeam, and the utility model has the advantages that: the lifting belt in hoisting equipment is effectively limited by limiting component, and the risk of slipping and falling in the hoisting process of plate material is reduced.

The invention relates to the technical field of port logistics information, and provides a container terminal management and control cloud platform and a container terminal management and control system. The platform comprises an access layer, an application layer and a platform service layer, the access layer is configured to be in communication connection with a plurality of user sides and a plurality of execution sides and is used for acquiring operation data transmitted by each user side and operation data transmitted by each execution side, and the application layer comprises at least one service unit and is used for transmitting operation data transmitted by each execution side. Each service unit outputs a control instruction based on the job data and the operation data, and the platform service layer is used for storing the control instruction in a message queue, so that an execution end obtains the control instruction from the message queue and executes an operation corresponding to the control instruction. The cloud platform flexibly replaces a local machine room, hardware and operation and maintenance are avoided, expansion and contraction are carried out according to needs, and the comprehensive cost is suddenly reduced. The three-layer architecture and the message queue get through a multi-port data island, instructions are reliably and orderly issued, operation conflicts return to zero, and the response is millisecond.

The intelligent deformation mobile robot comprises a robot body, side movable modules are symmetrically arranged on the left side and the right side of the robot body respectively, an opening and closing control module used for controlling the side movable modules on the two sides to open and close is arranged on the robot body, and a plurality of crawler belt transmission wheels are arranged on the side movable modules. A crawler shape switching mechanism is arranged between the multiple crawler transmission wheels and the side movable module on the corresponding side, a transmission crawler is connected between the multiple crawler transmission wheels on the same side, the storage space and the size of the mobile robot can be measured and adjusted according to use requirements, and the mobile robot adapts to more use environments; the track structure can be deformed according to a moving environment, and measurement selection is carried out between the moving stability and the obstacle crossing capability; the deformation can be completed only by combining the two push rod motors with a mechanical structure, so that the use of driving elements is saved, and the maintenance cost and the manufacturing cost are saved.

The utility model belongs to the technical field of structural health monitoring, and particularly relates to a distributed multi-parameter structural health monitoring system, which comprises a sensor network sensing module, a differential charge amplifier module, a data processing, analyzing and storing module and an early warning module, the sensor network sensing module is connected with the differential charge amplifier module, the differential charge amplifier module is connected with the data processing, analysis and storage module, the data processing, analysis and storage module is connected with the early warning module, and the sensor network sensing module collects multi-parameter data in real time. The differential charge amplifier module is used for conditioning and calibrating an output signal of the sensor network module; the data processing, analysis and storage module processes, classifies and stores the signals, and the early warning module triggers early warning. The system can realize comprehensive, real-time and accurate structural health monitoring for various structures in different industries, such as composite material structures of aircrafts, high-speed rail tracks and bridges, coal mine facilities, mechanical parts, automobile key parts and the like.

The utility model provides a shape follow-up adjusting jig, and relates to the technical field of tool clamps. The shape follow-up adjusting jig comprises a base, a guide plate is arranged on the base, a plurality of ejector pin holes parallel to one another are formed in the guide plate in the vertical direction, spring grooves in one-to-one correspondence with the ejector pin holes are formed in the base, a locking assembly is arranged between the guide plate and the base, and ejector pin springs are assembled in the spring grooves. The floating ejector pin which movably penetrates through the locking assembly is assembled in the spring groove and the ejector pin hole, and after the floating ejector pin moves downwards under the pressure of a workpiece, the position of the floating ejector pin which does not move downwards can be locked through the locking assembly. The position of the floating ejector pin which does not move downwards can be rapidly locked through the locking assembly, compared with the prior art, the structure is optimized, a cooling pipe, a cabin and other components are not arranged, meanwhile, application of refrigerants is reduced, and the purchasing cost of the refrigerants and the operation cost and maintenance cost of related equipment are effectively saved.

The utility model relates to the technical field of aluminum casting detection, in particular to an aluminum casting appearance defect detection device which comprises a workbench, a feeding mechanism, a conveying mechanism and a defect detection mechanism, the feeding mechanism, the conveying mechanism and the defect detection mechanism are arranged on the workbench, the feeding mechanism is used for automatically conveying aluminum castings, and the conveying mechanism is used for transferring the aluminum castings among stations; and the defect detection mechanism is used for detecting the aluminum casting on the carrier. The double-manipulator cooperative system is adopted, the detection efficiency is improved, the universality is enhanced, the cost is remarkably reduced, and the intelligence and the expandability are improved, so that the existing technical problems are effectively solved.