130results about How to "Guarantee factory quality" patented technology

The invention relates to a motor test system, which comprises a test controller, an inverter, a power tester, a rotating speed and torque sensor, a direct-current voltage stabilization power supply cabinet and a personal computer (PC). The invention also provides a method for testing a motor for an electric vehicle based on the test system. According to the test method, a whole rack test system is controlled through controller area network (CAN) communication; a rotating speed and torque measurement command is sent based on standard test data; rotating speed and torque data is fed back in real time by the rotating speed and torque sensor; and the feedback data is compared with standard data to judge whether the external characteristic of the motor is qualified. By the test system and the test method, the external characteristic of the tested motor can be detected accurately and efficiently, so that the delivery quality of the motor can be guaranteed; furthermore, the test process is high in automation degree and precise in test; and the method is easy to operate and low in cost, and has very wide application prospect.

The invention provides an intelligent self-checking method for an air conditioner. Firstly, under the condition that the air conditioner is electrified, a self-checking key is pressed down to enable the air conditioner to enter a self-checking mode, a buzzer sounds to confirm that the self-checking is started at the moment, each load begins to act, and according to software functional setting, the air conditioner outputs all of load information, including a display screen, a fan, a pressing machine, a fan, temperature signals and the like, in a sequence at intervals; and when the air conditioner quits the self-checking mode, all of input / output feedback information is collected, and if a fault appears, the air conditioner represents the fault in the form of the combination of a fault code and a buzzing alarm, and displays through an LED lamp and the fault code, so that a worker can rapidly find out the fault root according to the self-checking fault indication code and remove the fault to enable the air conditioner to return to the normal running state.

The invention discloses a Mel frequency cepstrum coefficient-based motor abnormal sound detection method. The method comprises the following steps that: a sampling frequency and a sampling duration tare set; framing and windowing processing is performed on audio signals, the frame length L of each frame is set to be L, and the overlap length (frame shift) of two adjacent frames is set to be M, the audio signals are divided into N frames of signals; audio features are extracted through using the Mel frequency cepstrum coefficient; and the mfcc parameter of each frame of current audio signals is calculated, and a change curve of each mfcc parameter changing with the number of frames (time) is obtained. The method of the invention has many advantages. With the method adopted, the abnormal sound recognition of a motor can be performed; detection efficiency can be improved; the outgoing quality of products can be ensured; the overall production efficiency of an enterprise can be improved;the manufacturing cost of the enterprise can be reduced; the physical health of workers can be protected; the problem of the unsteady state of the audio signals of the motor can be effectively solved;an unsteady motor abnormal sound fault can be effectively detected; and recognition accuracy is high.

This invention relates to digital automatic breaker overload shortcut test bench, which comprises rack, digital alternating constant current, direct lifting transducer and position device, pressing device, transmission device, gate device and control device fixed on the rack, wherein, the position device card tank is connected to transmission device push board; pressing device is set with two gas cylinders fixed on both sides and with two free ends relative to two output ends; gate device is above press device; digital alternating constant power output end is connected to the lifting transducer input end.

The invention relates to a loudspeaker testing device which comprises a travel control mechanism, a testing mechanism, a screening mechanism and a control mechanism, wherein the travel control mechanism is used for guide and travel control of to-be-tested loudspeakers coming from the upstream of a conveying belt; the testing mechanism is arranged on the downstream of the travel control mechanism and used for testing the to-be-tested loudspeakers; the screening mechanism is arranged on the downstream of the testing mechanism and used for screening qualified loudspeakers and defective loudspeakers; and the control mechanism is used for controlling the travel control mechanism, the testing mechanism and the screening mechanism. The loudspeaker testing device is high in production efficiency and capable of automatically performing online testing for the loudspeakers.

The invention discloses a steel ball receiving tank. The steel ball receiving tank mainly comprises a guide rail, a receiving tank body and a supporting frame. The two ends of the guide rail are connected to the top end of the supporting frame and the sidewall of the receiving tank body in a lap joint mode respectively. The guide rail comprises an inclined plate and two supporting plates. Two identical blocking devices are arranged on the inclined plate in the inclining direction. The two blocking devices are located in the same straight line. Each blocking device comprises a fixed block, a check block and a compression spring, wherein the fixed block is fixed to the bottom of the inclined plate, the check block is hinged to the fixed block, and the two ends of the compression spring are fixed to the inclined plate and the rear end of the check block respectively. Strip-type through holes are formed in the inclined plate and correspond to the front ends of the check blocks. The front ends of the check blocks are connected into the strip-type through holes in an inserted mode. By the adoption of the steel ball receiving tank, the rolling and falling speed of steel balls can be effectively decreased, the situation that the steel balls collide with one another and are damaged due to the fact that the speed of the steel balls falling into the receiving tank body is too high is avoided, the outgoing quality of the steel balls is guaranteed, loss is reduced for an enterprise, resources are saved, and the application range is wide.

The invention discloses a feeding mounting device of a releaser. The feeding mounting device comprises a vertical tube seat vibration plate, an ejection rod vibration plate, a main workbench, a rotary table, a vertical tube seat rotating structure, an upper valve seat transfer assembly robot, an upper valve seat assembly fixing robot and a finished product taking robot, wherein an upper valve seat loading robot, a vertical tube seat loading robot, an ejection rod loading assembly robot and an upper valve seat initial assembly fixing robot are arranged on the main workbench; a plurality of temporary fixtures are arranged on the rotary table, and a vertical tube seat accommodating groove and an upper valve seat accommodating groove are formed in each temporary fixture; a first vertical through hole communicating with each vertical tube seat accommodating groove is formed in the lower end of the vertical tube seat accommodating groove, and a second vertical through hole communicating with each valve body accommodating groove is formed in the lower end of each upper valve seat accommodating groove; and the vertical tube seat rotating structure comprises a rotary clamp head, an assembly motor and an assembly cylinder. The feeding mounting device has the beneficial effects that the structure is reasonable, the releaser can be assembled effectively, the automation degree is high, the assembly efficiency is high, and the effect is good.

The invention provides an on-line self-diagnosis control method for a heat pump water heater and an on-line self-diagnosis control device of the heat pump water heater, and relates to quality detection control method and device by means of a fluid heater of a heat pump. A heat pump water heater controller is utilized to obtain variable working condition operation actually-measured data, the variable working condition operation actually-measured data are compared with variable working condition operation essential data in a database, and automatic on-line quality detection of the whole heat pump water heater is achieved. The on-line self-diagnosis control device comprises a data analysis unit, a quality testing control terminal, an environment temperature detection module, a heat pump water heater interface unit, a high-pressure side pressure detection module, a low-pressure side pressure detection module, a power supply electric energy detection module and a water volume detection adjusting module. The quality testing control terminal and the environment temperature detection module are connected to the data analysis unit, and the data analysis unit is connected to a database management system. A heat pump water heater variable working condition operation database is set to automatically diagnose whether products are qualified or not, so judgments are more accurate, the quality of the whole heat pump water heater can be guaranteed, and meanwhile cost of quality testing of the products can be greatly reduced.

A method for detecting instrument of intelligent instrument detection unit includes connecting intelligent instrument in series between test desk and computer, reading in measuring data and switching state to computer under communication and interface protocol, comparing measured data with setting data for judging whether measured data is in specified range or not.

The invention relates to an assembly device for a servo motor rear flange cover. By means of the assembly device for the servo motor rear flange cover, the problems of low working efficiency, poor assembly quality and low reliability during manual assembly of the servo motor rear flange cover in the prior art are mainly solved. The assembly device for the servo motor rear flange cover comprises arack, an operation panel, an electrical cabinet and feature mechanisms; the operation panel is installed on the top of the rack, the electrical cabinet is installed at the bottom of the rack, and thefeature mechanisms are installed on the upper portion of the electrical cabinet; the feature mechanisms comprise a bearing feeding assembly mechanism, an O-shaped ring feeding assembly mechanism, an O-shaped ring detection mechanism, a bearing assembly detection mechanism and a rotary workbench mechanism; and the bearing feeding assembly mechanism, the O-shaped ring feeding assembly mechanism, theO-shaped ring detection mechanism and the bearing assembly detection mechanism are sequentially arranged in the rotation direction of the rotary workbench mechanism. By means of the technical scheme,the problems are well solved, and the assembly device can be used for assembling the servo motor rear flange cover.

The invention discloses a motor abnormal noise detection method based on Hilbert-Huang transformation, and the method comprises the six steps. The method can assist a worker to recognize the abnormalnoise of a motor, improves the detection efficiency, guarantees the delivery quality of a product, improves the overall production efficiency of an enterprise, reduces the manufacturing cost of the enterprise, and protects the health of the worker. The method can effectively solve a problem of an unsteady state of an audio signal of the motor, effectively detects the abnormal noise fault of an unsteady state motor, and is high in recognition accuracy.

The present invention discloses a method for online recognition of deviation of a strip steel in a furnace. The method comprises: 1) collecting multiple strip steel images including a strip steel edge position; 2) adopting an attention selection method to treat the collected strip steel images to obtain the significant feature pictures of the strip steel images, wherein the significant feature pictures comprise the edge position information of the strip steel; 3) carrying out a gray stretching treatment on the significant feature pictures, and then carrying out a binaryzation treatment, wherein all the taken values in the value taking range are adopted to calculate the corresponding classes square error r2 so as to determine the first optimal gray threshold T1 and the second optimal gray threshold T2, the pixels in the pictures requiring the binaryzation treatment are divided into the target class, the background class and the interference class according to the first optimal gray threshold T1 and the second optimal gray threshold T2, the gray value of the target class pixels is set to 1, and the grey values of the background class pixels and the interference class pixels are set to 0; and 4) judging whether the deviation of the edge position of the strip steel in the binaryzation picture is more than the preset value. The technical scheme has characteristics of easy and accurate use.

The invention relates to the technical field of automatic mechanical apparatuses, and concretely relates to a visual automatic detection system. The visual automatic detection system comprises a visual automatic detection device body (1), the device body (1) comprises a first camera (2) arranged at the upper part of the device body (1) and used for shooting, detecting and collating pictures of a bridge welding spot, the bottom of the device body (1) is provided with a lifting and rotating unit (3) for lifting and rotating a workpiece (9) to be detected, and the lifting and rotating unit (3) comprises a lower lifting cylinder (4) and an upper rotating platform (5). The detection method of the automatic visual inspection device has a higher detection efficiency than the prior art, and the detection device can automatically shoot and analyze the product and directly output a detection result without artificial intervention, so the defects of low efficiency and high misjudgement rate of traditional human eye detection are overcome in the invention.

The invention relates to the technical field of rotor detection, in particular to a detection method for a motor rotor and detection equipment thereof. The detection equipment is characterized in thatthe detection equipment comprises a circular run-out detection device, a distance detection device, a rotor binding force detection device, a displacement detection device and a rotor dynamic balancetesting machine in sequence according to a preparation sequence. According to the invention, the innovation and the practicability are high, and the popularization is easy.

The invention provides a battery protection board detection apparatus, which includes a battery voltage simulation module, a self-consuming current detection module, an over-current protection current detection module, an evaluation protection behavior module, a five-path external connection power supply, and a master control CPU. The over-current protection current detection module includes a control circuit of a current source, and a current detection circuit passing across a battery protection board. The five-path external connection power supply concretely includes the first path external connection power supply, the second path external connection power supply, the third path external connection power supply, the fourth path external connection power supply, and the fifth path external connection power supply. By means of the apparatus, over-charge protection voltage, over-charge recovery voltage, over-discharge protection voltage and over-discharge recovery voltage of the battery protection board for each of batteries can be automatically detected, the self-consuming current of the whole battery protection board can be detected, and the over-current protection current of the battery protection board when all the batteries are discharging can be detected.

The invention discloses a static-pressure sealing detection device of an automobile water pump water seal. The static-pressure sealing detection device comprises a support mechanism, an opening / closing mechanism, a material pushing mechanism and a detection mechanism, wherein the opening / closing mechanism and the material pushing mechanism are both connected to the support mechanism, the material pushing mechanism is connected under the opening / closing mechanism, and the detection mechanism is connected with an opening / closing film mechanism. By adopting the structure, since the water pump water seal is subjected to the static-pressure sealing performance detection through the static-pressure sealing detection device, the outgoing quality of the water pump water seal is ensured, the abandonment of the whole water pump caused by the water leakage of the water pump water seal can be avoided, the service life of the water pump can be ensured, and the cost can also be greatly lowered.

The invention relates to an assembling method of a rear flange cover of a servo motor, and mainly solves the problems of low efficiency, poor assembling quality and low reliability when the rear flange cover of the servo motor is manually assembled in the prior art. An assembling device of the rear flange cover of the servo motor includes a rack, an operation panel, an electrical cabinet and a characteristic mechanism; the operation panel is mounted at the top of the rack, and the electrical cabinet is mounted at the bottom of the rack; and the characteristic mechanism is mounted above the electrical cabinet, and the characteristic mechanism comprises a bearing feeding assembling mechanism, an O-ring feeding assembling mechanism, an O-ring detecting mechanism, a bearing assembling and detecting mechanism and a rotating working table mechanism. According to the technical scheme, the bearing feeding assembling mechanism, the O-ring feeding assembling mechanism, the O-ring detecting mechanism, the bearing assembling and detecting mechanism are arranged on the rotating working table mechanism in the rotating direction, so that the problems are solved well, and assembly for the rear flange cover of the servo motor can be achieved.

The invention discloses a firebrick measuring system based on machine vision, and the system includes a firebrick measuring device based on machine vision and a firebrick measuring method based on machine vision. An outline form geometry size of the firebrick can be detected without painting a measured end face, and surface scratch information, depth defect information and a surface inclination angle of the firebrick can be obtained by the firebrick measuring system based on the machine vision.

The invention discloses a method and device for testing phase detection automatic focusing performance, a storage medium and electronic equipment, and relates to the technical field of product performance test. The method comprises the following steps: respectively determining comparison test points on the left side and the right side of a target focusing position returned by a camera module; andthen comparing the modulation degree MTF corresponding to the comparison test point with the modulation degree MTF value corresponding to the target focusing position to obtain a position relationshipbetween the target focusing position and the optimal focusing position, thereby obtaining a test result of the phase detection automatic focusing performance of the camera module. The phase detectionautomatic focusing performance of the camera module can be tested, so that the delivery quality of the camera module is ensured, and the influence of the quality problem of the camera module on the use experience of a user and the public praise of a product is avoided.

The invention discloses a mechanical drying device for biomass particle production. The mechanical drying device comprises a supporting frame, wherein a drying and screening device capable of uniformly drying straw particles gathered into a cluster is arranged at the top of the supporting frame; the drying and screening device comprises an outer drying cylinder located at the top of the supportingframe; a feeding and screening device is arranged inside the outer drying cylinder; a supporting plate is arranged on the outer side of one end of the supporting frame; a drying device is arranged atthe top of the supporting plate; the bottom of the outer drying cylinder is an inclined surface; and a discharging port is formed in the inclined angle position of one end of the outer drying cylinder. According to the drying device for biomass straw particle production, the drying and screening device is additionally arranged on an original drying device so that the biomass straw particles can be uniformly dried, the dried straw particles can be screened, the shape after processing can be kept, and the outgoing quality of the straw particles is guaranteed; and the straw particles can be screened while being uniformly dried, and the shape integrity of the straw particles is guaranteed.

The invention discloses a production process of a shielding cover for electronic products, and relates to the technical field of electromagnetic shielding. The production process comprises the steps of base metal preprocessing, coating printing, baking, cooling and the like; in the baking process, the baking temperature is 180-220 DEG C and the baking time length is 3-5 min; from the beginning tothe end, the baking process comprises four stages in sequence: a first intermediate temperature stage, a high temperature stage, a second intermediate temperature stage and a secondary high temperature stage; and a baking temperature difference between any two adjacent stages is at least 10 DEG C. The production process of the shielding cover for electronic products is not only capable of improving the using performance of the metal shielding cover and prolonging the service life of the metal shielding cover, but also beneficial for improving the production efficiency and the product outgoingquality.

The invention discloses a simple and convenient, effective and practical method for checking the synthetic accuracy of a digital controlled machine tool, firstly cutting the testing material in a transverse cutting mode to manufacture a concave ball with steps, wherein as cutting, it can adopt three modes of cutting in the 45 deg. direction between X / Y axes, in the X-axis direction and in the Y-axis direction and also combine the threes modes for using; then obtaining the synthetic accuracy of the machine tool, according to the distribution of cutting lines and vibrating lines and the outline definition of step planes and transition circles. The method can accurately judge the actual processing accuracy and fineness of manufactured surface for the digital controlled machine tool, and has an extremely great value in the delivery inspection or acceptance inspection of the user for the digital controlled machine tool.

The invention discloses an automatic testing platform for electromagnetic flow meter circuit boards. The automatic testing platform comprises an analog signal generator, a signal acquisition module and an industrial personal computer. One end of the analog signal generator is connected to a to-be-tested circuit board, and the other end of the to-be-tested circuit board is connected with the signalacquisition module. The signal acquisition module is connected with the industrial personal computer through a RS485 bus. The invention further provides an automatic testing method for the electromagnetic flow meter circuit boards. The method includes steps: the to-be-tested circuit board sends a constant-current excitation signal to the analog signal generator, and a signal conversion circuit inthe analog signal generator converts the constant-current excitation signal into a different-mode signal; after the to-be-tested circuit board receives the different-mode signal, the different-mode signal is converted into a current signal through a signal processing and converting module; the current signal of the to-be-tested circuit board is converted into a RS485 signal which is then transmitted to the industrial personal computer; the industrial personal computer receives the RS485 signal and processes the RS485 signal prior to storage, analysis or displaying. By the automatic testing platform and method for the electromagnetic flow meter circuit boards, the to-be-tested circuit board in abnormal operation can be quickly detected out.

The invention discloses a useless electric mosquito mat detection system and method. The system comprises a voltage-stabilized source module, a synchronous signal collection module, a useless electric mosquito mat detection module, a single-chip microcomputer and a control alarming system module, wherein the input end of the voltage-stabilized source module is externally connected with the electric supply; the output end of the voltage-stabilized source module is connected with the power input ends of the synchronous signal collection module, the useless electric mosquito mat detection module, the single-chip microcomputer and the control alarming system module; the output ends of the synchronous signal collection module and the useless electric mosquito mat detection module are connected with the input end of the single-chip microcomputer; the output end of the single-chip microcomputer is connected with the input end of the control alarming system module. The useless electric mosquito mat detection system and method can automatically and effectively detect the phenomenon of useless electric mosquito mats in the production process; when an electric mosquito mat is missing or a useless one exists, an alarm is given out, the position is displayed, the yield of electric mosquito mats is greatly improved, waste of liquid is avoided, the outgoing quality of the electric mosquito mats is ensured, and good application prospects are achieved.

The invention relates to a method for preparing functional yoghourt capable of reducing blood fat through fermentation of lactobacillus paracasei, and belongs to the technical field of yoghourt preparation. The functional yoghourt is characterized by being prepared from the following raw materials in parts by weight: 1 part of lactobacillus paracasei, 1 part of yoghourt lactic acid bacteria, 100 parts of milk and 8 parts of white granulated sugar. The method comprises the following steps of: heating milk to 60 DEG C in a fermentation premixing device in a waterproof heating manner, adding the white granulated sugar, heating to 95 DEG C after the white granulated sugar is fully dissolved, staying for 5 minutes under the temperature condition, and cooling to 43 DEG C; and putting the mixture in the fermentation premixing device into a fermentation device, adding the lactobacillus paracasei and the yoghourt lactic acid bacteria into the fermentation device through a quantitative feeder, performing static fermentation for 8-10 hours, and performing packaging. According to the invention, due to scientific proportioning and process, lactobacillus casei is used for fermentation to prepare the functional yoghourt capable of reducing blood fat; in addition, by improving equipment for fermentation preparation, automatic implementation operation of fermentation operation can be achieved; and the production efficiency and the yield are improved.

The invention discloses an insulating layer detection device for crosslinked polyethylene cable processing. The device comprises a detection table; transfer tables are arranged on the two sides of thedetection table; and rectangular notches are formed in the front side and the rear side of the end, close to the detection table, of each transfer table. Supporting plates are fixedly connected to the bottom ends of the rectangular notches; mounting blocks are slidably connected to the top surfaces of the supporting plates; a reciprocating lead screw is connected between the two supporting plateson the same side through threads; first servo motors are arranged on the rear sides of the mounting blocks at the rear ends; the output ends of the first servo motors are fixedly connected with the reciprocating lead screw; air cylinders are fixedly connected to the top faces of the mounting blocks through screws; rectangular blocks are fixedly connected to the output ends of the air cylinders through screws; circular holes are formed in the middles of the rectangular blocks; and rolling bearings are fixedly connected to the inner walls of the circular holes. The device is reasonable in design and high in detection precision, can achieve the detection of the compressive strength, temperature resistance and appearance of the cross-linked polyethylene cable, and well guarantees the deliveryquality of the cross-linked polyethylene cable.

The invention discloses a tank body used for storing printing ink. A sealing cover plate is arranged at the upper end of a main tank body. A stirring motor is fixedly connected to the center area of the sealing cover plate. A stirring shaft is arranged at the inner axis position of the main tank body. The upper end of the stirring shaft rotationally penetrates the sealing cover plate and is connected with the output end of the stirring motor. A pair of connecting beams are fixedly connected to the same side of the stirring shaft in a spaced manner in the up-down direction. The left ends of thepair of connecting beams are fixedly connected with the inner side of a scraping plate which is vertically arranged, the scraping plate is arranged close to the side wall of the main tank body, and the outer side face of the scraping plate is connected with multiple hard bristles A in the length direction of the scraping plate. The hard bristles A are matched with the side wall of the main tank body in a contact manner. An arc stirring rod is fixedly connected to the bottom end of the stirring shaft, the stirring rod is arranged close to a bottom plate, multiple hard bristles B are connectedto the lower portion of the stirring rod in the length direction of the stirring rod, and the hard bristles are matched with a bottom plate in a contact manner. By means of the tank body, the phenomenon of precipitation or agglomeration which is likely to happen due to long-term storage can be effectively dealt with, and in addition, the labor load of workers can be reduced.