180results about How to "Versatile and strong" patented technology

The invention discloses an airfoil model force measurement system comprising a pair of supports, a pair of connecting bases, a drag measurement scale, a drag and pitch moment measurement scale, a pair of connecting rods, and a pair of lift measurement devices. The supports are arranged vertically. The connecting bases are respectively arranged on the supports in such a way that the connecting bases can slide along the supports without friction loss. The drag measurement scale is connected to one connecting base. The drag and pitch moment measurement scale is connected to the other connecting base. One end of one connecting rod is connected to the drag measurement scale, one end of the other connecting rod is connected to the drag and pitch moment measurement scale, and the other ends of the connecting rods are connected to the front end of an airfoil model to support the airfoil model between the supports. The lift measurement devices are respectively arranged on the supports, and the lift transfer components of the lift measurement devices are respectively connected to the connecting bases. A double-support system is adopted, and the airfoil model is supported between the supports. The system is of high support rigidity, and the airfoil model has little deformation under the action of gravity and wind load.

The invention discloses a laser radar is based upon lame light source difference absorption process to test thickness of NO2 in the atmosphere, it includes lame light source, light incept and spectrum components, photo-detection and control transaction components, the characteristic is that the light incept and spectrum components accepts the scattered light from atmosphere backward by telescope tube of incept light, after coupling of light fiber, making the light to lay in the focal plane of lens, ripping into the raster by collimation lens, after section out the wave length of light 354.71nm and 360.00nm,recepted by the two emergent light fiber on the focal plane of lens. The raster is blazed grating, it has definite included angle with lens; the photo-detection and control transaction part includes microcomputer, data acquisition card, chronotron, enlarge shaping circuit, photomultiplier and photo-electricity probe. The invention has the beneficial purpose of easy structure, low cost, high diffraction efficiency, good flexibility, convenient using and vindicate etc.

The invention discloses a universal simulated flight simulation environment evaluating system. Aiming at studying driving experience of an aviator, a simulation flight driving platform is constructed by employing flight simulation technology. The system includes a simulation experiment table hardware system, a simulated flight simulation analysis system, a simulated flight driving system. A distributed design is adopted and each sub system adopts distributed modular design. Functions of simulation experiment management, simulation parameter monitoring and simulation data record and analysis are realized. Except a main control sub system, the sub systems are in independent operation and do not affect each other. System integration is achieved through cross fusion of a reflective memory network and an Ethernet. Therefore, data transmission real time performance is ensured and the universality and expandability of the system are enhanced. The system can be suitable for high speed or low speed occasions requiring data visualization and data record and analysis.

The invention discloses a method for automatically judging a dress code through a surveillance video, and is mainly used for judging whether the dressing of the head of an operator is normative or not. The method comprises the following steps that: through a camera, collecting the head characteristics of the operator on line, and generating an image; and through a deep learning training model, extracting image characteristics, judging whether the dressing of the head of the operator is normative or not, and if the dressing of the head of the operator is not normative, outputting alarm information. By use of a deep learning method, features are automatically extracted, the extracted features exhibit better robustness so as to greatly improve a detection result, working efficiency is improved, supervision cost is saved, a supervision dimension is expanded, and supervision accuracy is improved.

The invention provides an underwater rope saw cutting machine which comprises a feeding mechanism, a clamping mechanism arranged at the lower part of the feeding mechanism, and a cutting mechanism arranged on the feeding mechanism. Compared with various rope saw cutting machines in the prior art, the rope saw cutting machine of the invention has the most remarkable advantages that the underwater rope saw cutting machine utilizes the triangularly fixed feeding mechanism, thus enhancing working stability, measuring a tensioning mechanism of resultant force and changing buoyancy under the water by a pontoon, cutting away a damaged submarine pipeline in a manner of speed changing, being adapted to the requirements of various pipelines and causing the rope saw cutting machine to be more universal and operable; meanwhile, due to the adoption of a tensioning device of a force sensor, the tensioning force can be adjusted, no tensioning insufficiency or over-tensioning happens, and the safety is also ensured.

The invention discloses a light emitting diode (LED) constant current driver and an illuminating system, belonging to the field of illumination. The LED constant current driver comprises a direct current (DC) power supply, a dimming circuit and a pulse width modulation (PWM) control circuit, wherein the DC power supply is used for supplying power for the dimming circuit and the PWM control circuit; the dimming circuit is used for sending a control signal to the PWM control circuit; and the PWM control circuit is used for adjusting a preset voltage according to the control signal to drive an LED light source to work at a constant current state. The illuminating system comprises the LED constant current driver and the LED light source for illumination connected with the LED constant current driver in series. In the invention, the PWM control circuit and the dimming circuit are arranged in the LED driver to adjust the power of the LED light source, and the LED driver has wide adaptable voltage rang and strong universality.

The invention relates to a method for controlling the surface stress-strain field of a casing part based on a constant cutting force, and belongs to the technical field of aerospace numerical controlmachining. The control method includes the following steps: (1) importing a part model into a computer; (2) importing an original numerical control program into the computer; (3) importing machine tool information into the computer; (4) setting cutter parameters; (5) simulating a cutting force; (6) analyzing simulation data; (7) judging the stability of the cutting process; (8) judging whether thecutting process belongs to local run-out; (9) adjusting the original numerical control program: (10) interrupting the original numerical control program adaptively; (11) optimizing the cutting parameters of the numerical control program by segments; (12) outputting an optimal numerical control program; and (13) applying the optimal numerical control program for processing verification. The methodof the invention can be applied to the surface stress-strain field control of various integral casing parts, and has huge economic and social benefits.

The invention discloses a method for detecting multiple targets based on nucleic acid aptamer fluorescence sensor, which applies polypyrrole nanoparticles and DNA silver nanoclusters for the first time and establishes an aptamer sensing platform based on a steric hindrance effect.In addition, the invention obtains a good detection result based on the low non-specific adsorption characteristic ofthe polypyrrole nanoparticles, and realizes the detection of multiple targets based on the specific recognition characteristic of the aptamer sequence, improving the universal performance of the invention.The method for detecting multiple targets based on nucleic acid aptamer fluorescence sensor, provided by the invention, has the advantages of label-free property, no enzyme and high sensitivity,and can realize high-efficiency detection in biological samples.

The present invention includes AMD Opteron central processing unit, HT bus controller, periphery expansion slot, wherein HT bus controller including three AMD 8131 HT bus bridging chip and one AMD 8111 HT bus I / O hub; periphery expansion slot including twelve PCI-X sockets, two PCI sockets, eight DDR memory sockets, and a series of slow speed peripheral interface equipment. The present invention supported all I / O interface adopts universal PCI-X and PCI socket with strong versatility; said invention can support most twelve 64 bit 133MHz PCI-X socket, capable of satisfying different kinds of IO request need with fine expansibility, and according to obligate 8-bite HT bus interface to cascade other HT bus equipment and further enhancing mainboard extended capability. Said invention overcomes a lot of IO request server process bottleneck in current technology, raising server mainboard performance in processing IO request.

The invention discloses a urea injection control method capable of meeting NOx emission control of an in-use vehicle. According to the method, an air inlet flow sensor is arranged on an air inlet pipeline of an engine, an upstream NOx sensor, and an upstream exhaust temperature sensor are sequentially arranged on an upstream exhaust pipe of an SCR catalyst, a downstream NOx sensor and a downstreamexhaust temperature sensor are arranged on a downstream exhaust pipe of the SCR catalyst, an SCR controller calculates the basic urea required injection amount according to signals of the sensors andthe set target NOx conversion rate, and a urea pump and a nozzle are controlled to execute urea injection. Relevance between the SCR control and an ECU is completely decoupled, the SCR system can work completely independent of an engine, generality is high, an engine rack or complete vehicle test can be reduced, a large amount of manpower and material resources are saved, the efficiency of end in-use vehicle modification is improved, and the environment treatment pace is quickened.

The invention discloses a 3D printing method and device for a hierarchical porous material. The patent is based on a brazil-nut effect, namely, particle mixtures in various sizes are placed in a container, an external force is applied to the container to oscillate the particle mixtures, particles with large sizes can float up while small particles can sink, and therefore, graded distribution in the height direction is implemented. On the basis of the effect, an oscillating device is added in a 3D printing process of a power bed. The 3D printing method comprises the following steps: before pavement of materials, orderly layering pore forming particles by oscillation according to sizes; after every layer of pore forming particles is paved, paving a corresponding layer of liquid photosensitive resin materials on the layer of pore forming particles; carrying out selective photocuring by using a digital mask technology; carrying out layer-by-layer stacking and curing molding; and removing the pore forming particles by aftertreatment technologies including heating or dissolving and the like to form the hierarchical porous material. The aperture size of the porous material obtained by the method is orderly changed in the layer thickness direction, gradient mechanical and acoustical properties can be generated, and the hierarchical porous material is used in fields of artificial biological tissue scaffolds, sound absorption materials, cushioning materials and the like.

The invention discloses an AC load, and is designed for providing an AC load with continuously regulated load. The invention comprises a current-limiting resistance which connected with a rectification circuit, wherein, a filter circuit is connected between the positive terminal and the negative terminal of the rectification circuit in parallel; and also comprises a voltage waveform sampling and current signal generating circuit and an electronic resistance which are connected between the positive terminal and the negative terminal of the filter circuit in parallel. The AC load provided by the invention has the characteristics of high reliability, convenient remote control, simple operation, continuous regulation of the load, strong universality, etc; meanwhile, the characters of the invention are the same as the regulation of YDT / 1095 of Ministry of Posts and Tele Communication, and can fulfill the requirements of the research and development, testing and production of all UPS, inverters and other uninterruptible power systems.

The invention discloses an electroencephalogram evaluation system based on an electroencephalogram-based simulation aircraft. The system comprises a simulation flight simulation analysis system, a simulation piloting system and an electroencephalogram experiment system. The purpose of the invention is to study the driving experience of a pilot. Electroencephalogram technology and the flight simulation technology are used, and a set of simulated piloting platforms combining an electroencephalogram system is built. A tested person generates a series of electroencephalogram signals by operating asimulated piloting system and receiving feedback from the system, and the electroencephalogram signals are collected, displayed and recorded by an electroencephalogram experiment system. A simulationflight simulation analysis system processes and stores the electroencephalogram event data generated by the simulated piloting system and real-time stamps. After the flight test is finished, the tested person carries out mental load evaluation on each task, and then the mental load of the operator is analyzed in combination with the electroencephalogram data. The system platform provides a good experiment and training platform for researching the problems of pilot mental load and mental fatigue.

The present invention relates to a restructurable digital control module which can be used in the field of computer digital control technology. Said invention utilizes restructurable interface module, state coordinator module and control module to form a modular open structure, the restructurable interface module, state coordinator module and control module are coupled by means of shared internal memory, and the state coordinateor module and control module can utilize respective COM interface to retain mutual communication between both them. the use of said invention can restructure numerical control module, and can meet the concrete requirements of various types of numerically-controlled products.

The invention relates to a single power source-based variable stiffness flexible joint. A joint driving end comprises a joint support, a reducer support, an interlocking clutch structure, a harmonic reducer and a joint driving motor with an encoder, wherein the joint support is a U-shaped structure component, and the harmonic reducer is connected with the left end of the joint support through thereducer support; the output end of the joint driving motor is connected with a stiffness adjustment mechanism through the interlocking clutch structure, and the reducer support is of a hollow cylindrical shell; one end of the reducer support is provided with a mounting hole for connecting the harmonic reducer, and the other end of the reducer support is provided with a threaded hole for connectingthe left end of the joint support; a shaft shoulder is also arranged on the reducer support, and the interlocking clutch structure is positioned in a cavity of the reducer support. The joint uses thesingle motor to achieve joint drive and stiffness adjustment, and has the advantages of compact structure, high integration, high positioning accuracy, substantially continuous linear accurate adjustment of stiffness, and various stiffness adjustment modes.

The invention relates to an adjustable polishing head mechanism for magnetic compound fluid. The adjustable polishing head mechanism comprises a magnet rotating mechanism and a liquid carrying plate rotating mechanism. A permanent magnet in the magnet rotating mechanism is eccentrically fixed to the lower portion of a magnet disc. The magnet disc is connected with a first motor through a main shaft. The first motor drives the main shaft to drive the permanent magnet to rotate, and a high-speed rotating magnetic field is produced. A connecting bracket in the liquid carrying plate rotating mechanism is a round sleeve and is installed on the outer side of the magnet rotating mechanism. A liquid carrying plate serves as an end cover of the connecting bracket and is installed below the permanent magnet. A V-shaped belt is connected to a V-shaped belt wheel and the connecting bracket in a sleeving mode. A second motor is connected with the V-shaped belt wheel through a coupler and drives the connecting bracket and the liquid carrying plate on the connecting bracket to rotate through the V-shaped belt wheel, so that the magnetic compound fluid on the liquid carrying plate rotates, and thus polishing removing of a workpiece is achieved. The adjustable polishing head mechanism for the magnetic compound fluid has the characteristics of being simple in structure, high in material removing efficiency, wide in applicable magnetic cluster size range and the like.

The invention discloses an integral pure aluminum electric vehicle frame. The integral pure aluminum electric vehicle frame comprises threshold beams arranged on the two sides of a battery pack in a mirror image structure and used for bearing the battery pack, one ends of the threshold beams are in threaded connection with a front longitudinal beam assembly through a longitudinal beam fixing seat,and the other ends of the threshold beams are in threaded connection with a rear longitudinal beam assembly through a longitudinal beam fixing seat; the front longitudinal beam assembly is provided with mounting brackets, wherein the mounting brackets are in riveted connection with the front longitudinal beam assembly, and are arranged in a symmetrical structure, and provided with shock absorbersand upper control arms which are integrated; and the rear longitudinal beam assembly is provided with shock absorber brackets, wherein the shock absorber brackets are in riveted connection with the rear longitudinal beam assembly and are arranged in a symmetrical structure. The beneficial effects of the integral pure aluminum electric vehicle frame are mainly embodied in that a production technology is simple, an assembly mode of small-range welding and large-range assembling is adopted to ensure assembly precision and connecting strength, and the production efficiency is greatly improved while safety is ensured; and in addition, the integral pure aluminum electric vehicle frame has high universality and is wide in applicability.

The invention discloses an electro-hydraulic fully variable air distribution device and a control method, and belongs to the technical field of engine air valves. The electro-hydraulic fully variable air distribution device comprises a buffer control valve, a lift range control valve, a low-pressure oil box, a filter, a hydraulic motor, an energy accumulator, an overflow valve, a solenoid directional valve, an electro-hydraulic fully variable air distribution executor, an electronic control system, and attached components like an oil pipe. A high-pressure oil port, a lift range control port, a buffer control oil port, a cylinder body orifice and five hydraulic cavities (A, B, C, D and E) are formed in the electro-hydraulic fully variable air distribution executor, and by controlling pressure of hydraulic oil in the five hydraulic cavities, movement like the opening and seating of one engine air valve can be realized. By changing power losing and power obtaining hours of a two-position three-way valve, the lift range control valve and the buffer control valve, the opening phase and the opening lift range of the engine air valve can be changed, and soft adjustment on the lift range and the phase of the air valve, and the duration of the opening of the air valve are realized, so that fully variable movement of the air valve is realized.

The invention provides an automatic soft power-on rectifying circuit including five power diodes PD1-PD5, a unidirectional thyristor, an electrolytic capacitor, a thermosensitive resistor, a voltage-stabilizing diode, resistors R1-R6, and capacitors C1-C3. When a single-phase alternating current power supply is switched on, a rectifying bridge formed by the four power diodes PD1-PD4 charges the electrolytic capacitor EC1. The electrolytic capacitor EC1 and the thermosensitive resistor form a resistance-capacitance charging branch circuit. The voltage of the electrolytic capacitor EC1 rises slowly. When the voltage of the electrolytic capacitor EC1 rises and approaches a net voltage peak, a divider resistor R3 gets enough voltage. After rear stage voltage stabilization and current limitation, the current is formed and sent to a place between a gate pole and a negative pole of the thyristor TY1. The thyristor is conducted to short out the power-on current-limiting thermosensitive resistor. The rectifying circuit enters the full and natural rectifying state, and finishes the soft power-on. The automatic soft power-on rectifying circuit can be applied to the field in which an AC-DC convertor is used as a preceding stage circuit, and can simultaneously realize the automatic soft power-on process and the single-phase rectification process.

The invention relates to a high-energy quasi monoenergetic electronic beam ground calibration system of a detector. The system comprises an electronic linear accelerator, a quadrupole magnet set composed of multiple quadrupole magnets I, a pair of dipolar magnets, a pair of quadrupole magnets II and the detector to be calibrated. A thin target is arranged between the electronic linear acceleratorand the quadrupole magnet set; a slit A is arranged between the quadrupole and the pair of dipolar magnets; the pair of quadrupole magnets II and a slit B are arranged between the pair of dipolar magnets; the pair of quadruple magnets II, the pair of dipolar magnets and the slit B are sequentially and dissymetrically placed to form an energy selection deflection structure; the slit A and the energy selection deflection structure are sequentially arranged between the quadrupole magnet set and the detector to be calibrated. Electronic beams supplied by the accelerator are attenuated to quasi monoenergetic electronic beams within the acceptable flux range of the detector, the energy of the calibrated electronic beams is adjustable, the flux is controllable, the system can be used for electronic beam ground calibration of the spaceflight detector, and therefore the gap for the national detector ground electronic beam calibration high-energy region is filled.

The invention discloses a highly integrated general programmable industrial remote controller, which mainly comprises the remote controller, a remote controller base and a remote controller expansion panel. The highly integrated general programmable industrial remote controller has the advantages of high integration level, strong generality, detachability and capability of being separate or matched with the remote controller expansion panel to commonly control a target body, carries out signal transmission with the target body in a wired connecting mode or a wireless connecting mode, and is convenient, safe and reliable and wide in application range; and input points are saved.

The invention discloses a measuring instrument testing fixture for a length measuring machine. The measuring instrument testing fixture for the length measuring machine comprises a base, a cushion block, a support, a clamping assembly and a measuring head fixing base, wherein the bottom of the base is matched with a rail of the length measuring machine; concentric screw holes are formed in the base, the cushion block, the support and the measuring head fixing base respectively; the base, the cushion block and the support, or the base, the cushion block and the measuring head fixing base are tightly fixed by long screws; a sliding rail is arranged on the side surface of the support; the clamping assembly comprises a clamping base, and a clamping plate which is detachably fixed with the clamping base; one end of the clamping base is arranged on the sliding rail of the support in a fixable and slidable way; clamping slots forming a complete clamping hole are formed in opposite surfaces of the clamping base and the clamping plate; an instrument rod hole is formed in the upper end part of the measuring head fixing base; a screw hole V which is communicated with the instrument rod hole is formed in the upper end surface of the measuring head fixing base; and a locking bolt E is installed in the screw hole V. When the length measuring machine uses the measuring instrument testing fixture, a workpiece size measuring instrument is tested or calibrated on the premise of not changing the original performance of the length measuring machine, and multiple functions of the length measuring machine are realized.

The invention belongs to the technical field of impregnated carbon, and particularly relates to efficient impregnated carbon capable of effectively purifying multiple industrial toxic and harmful gases in a complex environment. The efficient impregnated carbon adopts broken coconut shell activated carbon as carrier framework material, and the carrier framework material is loaded with 13wt%-20wt% of Cu, 2wt%-6wt% of Mo, 0.1wt%-3wt% of Zn, 0-7wt% of CO3<2-> and 5wt%-10wt% of SO4<2->. The impregnated carbon provided by the invention is high in generality, good in universality and wide in protection spectrum, can meet the purification demand and the protection demand of the complex environment, is capable of effectively purifying gases in time especially under the condition that the types of the toxic and harmful gases can not be figured out in time and the varieties of the toxic and harmful gases are complicated, and is in accordance with the demand of market development.

The invention relates to a universal clinical test electronic data acquisition system and method. A random number of a testee and a drug number are generated through a client system, and test stage information acquisition and post-test follow-up data acquisition are finished, so that the data acquisition throughout the whole test process is electronized, a large amount of labor work is reduced, the test data acquisition efficiency and precision are greatly improved, and the universality is high.

The invention discloses a method for distinguishing electric bicycles and motorcycle through videos, and mainly aims at distinguishing license plates of the electric bicycles and motorcycles. The method comprises the following steps of: acquiring license plate features of electric bicycles and motorcycles on roads through a camera and generating an image; extracting features of the images througha deep learning-based training model and judging whether the motorcycles exist in the image or not; and if motorcycles are detected, outputting alarm information. According to the method, deep features of objects are extracted by adoption of a deep learning manner, and the extracted features have strong robustness, so that interferences of various environments can be overcome, the recognition correctness is greatly improved and the investment of manual supervision is greatly decreased; and compared with tradition recognition method, the precision of the method is greatly improved.

The invention discloses a household electric energy router, which relates to the field of electric energy routers and aims to meet the energy router requirements in medium and small power applicationoccasions. According to the invention, the DC end of an AC interface is connected with a 360V DC bus, the AC end of the AC interface is connected with an AC power grid or an external electric energy router, the input end of a load interface is connected with the 360V DC bus, the output end of the load interface is connected with a load, the output end of a distributed generation interface is connected with the 360V DC bus, the input end of the distributed generation interface is connected with a power supply, and energy storage equipment is connected with the 360V DC bus through an energy storage interface; the AC interface, the load interface, the distributed generation interface and the energy storage interface are all implemented by adopting converters, and two ends of each converter are connected with a signal coupler in parallel; and a control module is used for sensing and controlling the state of the AC interface, the load interface, the distributed generation interface and theenergy storage interface. The household electric energy router is applicable to the medium and small power application occasions.

The invention provides a method and a device for carrying out prediction on a predicted object. The method comprises the steps of acquiring a plurality of historical data values of the predicted object in a predetermined historical period; searching a plurality of influence factors related with the predicted object from a database, and acquiring one or more data sources corresponding to each influence factor and a predetermined algorithm; searching text information of each influence factor from the one or more data sources, and converting the text information into a plurality of pieces of structured data according to the predetermined algorithm; acquiring a correlation coefficient of each influence factor and the predicted object according to the plurality of historical data values and the plurality of pieces of structured data, and taking out part of the influence factors whose correlation coefficients meet a predetermined condition from the plurality of influence factors; acquiring the length of a prediction period which is immediately after the predetermined historical period according to the plurality of historical data values, and calculating the weights of part of the influence factors respectively; and acquiring a plurality of prediction data values of the predicted object in the prediction period according to the length of the prediction period and the respective weights.

The invention relates to the field of printing equipment, in particular to a rotary workbench for printing equipment. The rotary workbench comprises a support table, a workbench, a plurality of stations and a rotating member, wherein the upper end of the rotating member can be rotated; the rotating member is vertically mounted in the support table, and the upper end of the rotating member extends out the top of the support table; the workbench is arranged above the support table and connected with the upper end of the rotating member, and the workbench is driven by the upper end of the rotating member to circumferentially rotate; the stations are respectively connected with the upper surface of the workbench through extensible members and are driven by the extensible members to move up and down on the workbench. The rotary workbench has the beneficial effects that due to a plurality of stations, the rotary workbench can rotate and vertically move, and the practicality and the universality are stronger.

The invention discloses a device for automatic material stripping for LEDs, in particular to a device for automatic material stripping and automatic Bin splitting for serial flaky LEDs. The device ofthe invention is characterized by comprising an automatic material stripping mechanism, a sequential material discharging escapement mechanism, an X / Y automatic material transferring mechanism, a swinging material receiving box, a classified material collecting box, a classified material collecting mechanism and a detecting system, wherein the automatic material stripping mechanism is positioned on a worktable plate of a stand, and the serial flaky LEDs comprise a plurality of LEDs which are positioned on a mold of the automatic material stripping device. The invention has the advantages of greatly improving the compatibility and the universality of the device and reducing the technological requirements for the products of manufacturers, and meanwhile, the device has small impact and shockand can be operated and maintained conveniently, thereby greatly reducing the assembly cost of the devices of the manufacturers. The device of the invention can be widely used for the manufacturers producing or using LEDs.

The invention discloses a combined tool clamp for automobile door ring laser tailor-welded plates. The combined tool clamp comprises a fixed chuck assembly (10), a gap adjusting chuck assembly (20) and a round hole base (30); the round hole base comprises a substrate (31) providing with a plurality of round holes (34); the fixed chuck assembly comprises two positioning parts, a first chuck supporting seat (16), a first supporting rod (17) and a first height adjusting nut (18); the gap adjusting chuck assembly comprises a gap adjusting sheet (21), a third cylinder (22), a second chuck supporting seat (23), a second supporting rod (26) and a second height adjusting nut (27); and the first supporting rod and the second supporting rod are arranged on the substrate through the round holes, thefixed chuck assembly is adjusted up and down through the first supporting rod by means of the first height adjusting nut, and the gap adjusting chuck assembly is adjusted up and down through the second supporting rod by means of the second height adjusting nut. The combined tool clamp can adapt to all types of door rings, reduces the mold cost, meets the requirements of testing and batch production and shortens the production period.