34 results about "Mold testing" patented technology

The invention provides a stamping process diagram optimization design method and system based on Autoform simulation. The stamping process diagram optimization design method comprises the steps of data input and preprocessing; preliminarily generating a process diagram; carrying out Autoform simulation analysis; automatically optimizing parameters; dynamic process diagram output and knowledge base integration are carried out, defects such as wrinkling and cracking are warned in advance through Autoform multi-physical field simulation, the mold testing frequency is reduced by more than or equal to 50%, and the mold testing cost is greatly reduced; the blank holder force and the draw bead resistance coefficient are automatically adjusted through algorithms such as a gradient descent method, the blank holder force precision is improved to be within + / -5%, and manual experience dependence is reduced; through simulation-design closed-loop iteration, the mold debugging period is shortened to 1-2 weeks from traditional 4-5 weeks, and the design efficiency is improved; simulation data are directly embedded into the dynamic process diagram, version control and difference comparison are supported, and design traceability is ensured; a knowledge graph is constructed through historical simulation data, initial parameters of similar workpieces are recommended through machine learning, the repeated simulation workload is reduced by more than or equal to 30%, and the design reusability is improved.

The invention provides a foaming injection molding process optimization and product performance prediction method based on artificial intelligence, and aims to realize process optimization of product appearance and performance in a foaming injection molding process through an artificial intelligence algorithm. According to the method, light transmittance is used for indirectly representing the mechanical performance of a product, and the method comprises the following steps: performing mold testing analysis through an orthogonal experiment to obtain a process parameter-microstructure parameter-performance parameter data set; an LSTM model and an XGBoost model are adopted to construct correlation models of the technological parameters and the microstructures and correlation models of the microstructures and the product performance respectively; an optimization algorithm of LSTM-EGA and an optimization algorithm of XGboost-SEGA are constructed respectively, and the optimization algorithms are used for reversely deducing technological parameters according to the target parameters; the light transmittance of the product is adjusted according to the requirement for the mechanical performance of the product, and the optimal forming process is reversely solved through a model algorithm; and performing on-machine mold testing, adjusting a model structure based on a test result, and re-recommending a process. According to the prediction method, high equipment investment is avoided, and the test process is greatly simplified, so that the test cost can be remarkably reduced.

The utility model provides a high-precision mold testing machine which comprises a machine frame, a working table, a mounting top plate, a mounting support and a lifting driving assembly, the lifting driving assembly comprises a rotating motor, a crank, a driving rod assembly, a hinge seat, a lifting support and a first driving block, and the rotating motor is fixed at the upper end of the mounting support; the crank is rotatably mounted on the mounting support, one end of the crank is connected with the power output end of the rotating motor, a driving arm is arranged in the middle of the crank, a center shaft of the driving arm is arranged on a rotating shaft of the power output end of the rotating motor in an offset mode, and the middle of the lifting support is slidably connected with the mounting top plate. The upper end and the lower end of the driving rod assembly are hinged to the driving arm and the hinge seat correspondingly. The first driving block is fixed to the lower end of the lifting support. The design has the advantages that the running stroke of the mold can be more accurately controlled, the mold can still keep the original position without moving during power failure, the safety of equipment is improved, and the mold can be prevented from being damaged.

The invention relates to the technical field of injection mold testing, in particular to an injection mold pressure testing device which comprises a frame and further comprises a clamping assembly arranged on one side of the frame and a pressure equalizing plate, a moving assembly arranged at one end of the clamping assembly, a detecting assembly arranged at the upper end of the moving assembly and an adjusting assembly arranged on one side of the detecting assembly. The adjusting assembly comprises a first supporting frame, the transmission assembly is arranged on one side of the fixing plate, and the displacement sensor is fixedly installed on the surface of one side of the fixing plate. According to the device, after the mold is clamped and fixed through the clamping assembly, the detection assembly is inserted between the movable mold and the fixed mold, specific force is applied, the detection assembly is driven to move through the moving assembly, the detection assembly detects the pressure at the edges of the movable mold and the fixed mold, the detection range is widened, and meanwhile when it is detected that the pressure is abnormal, the detection assembly is started to detect the pressure at the edges of the movable mold and the fixed mold. Multiple positions of the abnormal area can be conveniently detected, the range of the abnormal point location is further narrowed, and the detection precision is improved.

The utility model discloses a mold test fixture and a mold test system, the mold test fixture is used for testing whether a vacuum hole of a mold is blocked, the mold test fixture comprises a test main body, the test main body is provided with a plurality of through holes, and one end of at least part of the through holes is used for communicating with one end of the vacuum hole; the other ends of at least part of the through holes are correspondingly provided with airflow indicating pieces, and the airflow indicating pieces can generate position changes under the action of airflow. When the other end of the vacuum hole of the mold is subjected to an air blowing test, whether the vacuum hole of the mold is blocked or not can be determined by observing whether the position of the airflow indicator in the mold test jig provided by the utility model is changed or not, so that the test accuracy and efficiency are improved.

The utility model discloses a metal mold testing tool, which relates to the technical field of metal molds and comprises a bottom plate, two carrier plates are symmetrically arranged on the upper surface of the bottom plate in a sliding manner, two supporting blocks and a motor are fixedly arranged on the inner side of each carrier plate, a bidirectional lead screw is rotatably arranged between the two supporting blocks, and a clamping groove is formed in the middle of each bidirectional lead screw. The metal mold testing tool comprises a support plate, a bidirectional lead screw and a motor, the support plate is arranged on the support plate, two moving blocks are slidably arranged on the inner side of the support plate, a limiting rod is fixedly arranged between the two moving blocks, and the output end of the motor penetrates through the support block and is fixedly connected with the bidirectional lead screw. Through cooperation of the telescopic sleeve and the insertion column structure, the tool can flexibly adapt to metal molds of different sizes and specifications, one set of tool can meet the opening and closing test requirements of various molds, and the cost that various special tools need to be arranged due to mold size differences is reduced.

This invention relates to the field of injection mold testing technology, specifically to a pressure-type injection mold sealing performance testing device. It includes a testing component, which comprises a support mechanism. A sealing element is provided on the outer wall of the contact area between the fixed mold body and the movable mold body. A pressure injection mechanism is sealed and installed at the injection port of the fixed mold body, and the other side of the pressure injection mechanism is installed on the inner wall of the support mechanism. This invention receives a signal from a pressure sensor, causing the gas injection head to stop gas delivery. External force is then used to push the movable mold body to perform a re-closing operation. During the closing process, the connecting rod can exert a squeezing effect on the sealing element. By calculating the total gas delivery volume and the amount of gas remaining in the sealing element, the capacity of the cavity in a sealed state can be determined. In subsequent use, as long as the injected gas volume does not exceed this capacity, the mold body can maintain a sealed state.

The invention provides a split type acetabulum filling cushion block driving-in tool, and belongs to the technical field of medical instruments. Performing main body mold testing; the tooth structure is fixedly connected to one side end of the main body test mold; the notch is formed in the lower end of the main body test mold; the acetabular cup prosthesis test mold is positioned in the notch; the striking head is positioned in the acetabular cup prosthesis test mold; the main body test mold adopts an L-shaped design and is preliminarily fixed through the sliding nail holes, so that fine adjustment can be performed in an operation to reach an optimal position, and accurate placement of the acetabulum filling cushion block is ensured. Due to the design that the tooth peak of the tooth structure is gradually thinned from the root to the head, the tooth structure can be embedded into the acetabular fossa of the host bone more smoothly, the operation difficulty is reduced, and the stability is improved.

The present application relates to a kind of encapsulation mold test and production data processing and prediction method.The method includes: setting sensor group in each detection position;At least one preset test condition is executed to obtain test data;According to test data, obtain the multi-condition strain correlation prediction model of each detection position in preset test condition;Sample production data obtained by each sensor group;Compare the comparison value of production data and test data under the same test parameter in preset test condition, obtain model error;Update model error to multi-condition strain correlation prediction model, in multiple preset production cycle, the model error attenuation value under the same test parameter is calculated, the performance attenuation value of the packaging mold to be measured in each preset production cycle is predicted;According to performance attenuation value, the production quality failure threshold of the packaging mold to be measured is calculated.The present application predicts mold performance attenuation and calculates production quality failure threshold, effectively improves production stability and mold service life.

The utility model relates to a mold testing device which comprises a shell, a transmission shaft, a first sliding block, a second sliding block, two supporting blocks and a connecting assembly. A mounting opening is formed in the peripheral side of the shell; the transmission shaft is located in the shell and rotationally connected with the shell, the transmission shaft is provided with a first thread and a second thread, and the second thread is opposite to the first thread; the first sliding block is connected with the transmission shaft through a first thread; the second sliding block is connected with the transmission shaft through a second thread; the two supporting blocks are located on the two sides of the shell correspondingly. The connecting assembly comprises two connecting ribs, the connecting ribs are movably connected with the first sliding blocks, and the connecting ribs can rotate and slide relative to the first sliding blocks; the connecting rib is movably connected with the second sliding block and can rotate and slide relative to the second sliding block; the connecting rib is movably connected with the two supporting blocks, and the end of the connecting rib can rotate and slide relative to the supporting blocks. The distance between the supporting blocks can be adjusted, the requirements of different environments can be met, and the product cost and the management cost are reduced.

This utility model relates to the field of wheel rim mold testing technology and discloses a wheel rim mold product airtightness testing device. It includes a base plate for supporting an upper component, and an inner support mechanism for supporting different wheel rim molds is fixedly installed on one side of the top of the base plate. The inner support mechanism includes a power component for adjusting the inner support spacing and an inner support assembly for providing inner support to different wheel rim molds. A testing mechanism for testing different wheel rim molds is fixedly installed on the side of the top of the base plate away from the inner support mechanism. The advantages of the inner support mechanism are that the power component drives the telescopic rod to extend and retract via a cylinder, allowing for flexible adjustment of the inner support spacing; in the inner support assembly, a first connecting plate transmits motion, and three sets of circumferentially symmetrical inner support plates can evenly provide inner support to different wheel rim molds. The surface coating increases friction and prevents slippage. The second connecting plate makes the inner support more stable. The device is adaptable to various molds, ensuring mold stability during testing and improving testing accuracy.

A system for mold examination, comprising: a portable autofocus microscope comprising a housing, a pressure switch, a power supply module, a circuit arrangement and an optical lens module, wherein the pressure switch is attached to the housing, the power supply module is located inside the housing, the circuit arrangement is located inside the housing and includes a wireless communication module, wherein the optical lens module is located at the bottom of the housing and has an autofocus function and an illumination source;as well as a display device that communicates wirelessly with the portable autofocus microscope via the wireless connection module to receive the images captured by the portable autofocus microscope, on which a special application is installed that, when run on the display device, displays the images in real time and analyzes these images using artificial intelligence (AI) to provide results for mold investigation.

The invention belongs to the technical field of mold pressure testing, and discloses a tire mold pressure testing mold testing machine which comprises a bottom carrying table, a top frame is installed at the top end of the bottom carrying table, a main hydraulic cylinder is installed at the center of the top end of the top frame, and a multi-point pressure detection assembly is fixedly installed at the lower end of a piston rod of the main hydraulic cylinder. A chain roller conveyor is installed at the top end of the bottom carrying table, a lower mold centering assembly used for enabling a tire lower mold on the chain roller conveyor and the main hydraulic cylinder to be kept in a coaxial state is installed at the top of the bottom carrying table, and upper mold feeding and moving assemblies used for bearing a tire upper mold are installed on the left outer wall and the right outer wall of the chain roller conveyor. The upper mold feeding and moving assembly is used for moving a tire upper mold to the position under the multi-point-position pressure detection assembly, the left position and the right position of the top end of the bottom carrying table are each provided with a double-shaft picking assembly, and the double-shaft picking assemblies are used for clamping the tire upper mold on the upper mold feeding and moving assembly and completing mold closing operation with the centered tire lower mold; the upper and lower molds of the tire can be automatically closed and detected.

This invention discloses a hot runner mold testing device for acoustic component processing, relating to the field of mold testing technology. It includes a base plate with circular holes at its four corners. A processing table is fixedly connected to the center of the top surface of the base plate. A control panel is fixedly mounted on the surface of the processing table. A shelf is fixedly connected to the center of the top surface of the processing table. Clamping plates are slidably connected to both sides of the inner side of the shelf. An upward-opening through groove is formed in the center of the clamping plates. This invention has a reasonable structure. The hot runner mold inside the shelf is fixed on both sides by a positioning component and a driving component. Then, the bottom of the sampling hopper on the testing component aligns with the nozzle of the hot runner mold to complete the sampling and testing work.

The invention provides an injection speed determination method and device, an injection molding method and device and electronic equipment, and belongs to the field of intelligent manufacturing, and the method comprises the steps that an injection molding machine is controlled to conduct injection according to multiple different set injection speeds, the actual filling time and the actual injection pressure peak value at each set injection speed are obtained, and a relative viscosity index is obtained through calculation; and determining the change trend characteristics of the relative viscosity index along with the set injection speed based on the relative viscosity index, and determining the target injection speed of the injection molding machine. The physical principle that the injection pressure and the filling time represent the viscosity under the constant volume is utilized, a rheology curve can be constructed without an external rheometer, the optimal process point is automatically locked by identifying the stable trend of the curve, the problems that traditional injection molding depends on empirical machine adjustment, and the flowability cannot be objectively quantified are solved, and the production efficiency is improved. And accurate and automatic setting of scientific mold testing and process parameters is realized.

The invention discloses an extrusion molding process parameter intelligent setting method based on scientific mold testing, and belongs to the technical field of plastic extrusion molding processing. A momentum optimization algorithm is introduced in the training process of a classic BP neural network, and after the neural network is verified to be reasonable, online process parameter adjustment is performed; a particle swarm algorithm is adopted to replace a traditional manual trial and error method, automatic and global intelligent optimization of process parameters is achieved, a process parameter combination is recommended by comparing the maximum pressure of an outlet section predicted by a neural network with the actual maximum pressure of the outlet section, the simulation efficiency is improved, real-time adjustment of the process parameters is achieved, and the process parameters are optimized. According to the method, in the actual industrial production period, analysis simulation and prediction can be conducted through computer data, remote calculation and online process parameter adjustment can be achieved only by uploading product and mold data to the cloud end by an operator, and good universality and convenience are achieved in industrial production.

The utility model relates to the technical field of upper mold plate pressure bearing, and discloses an upper mold plate structure which comprises an upper mold plate arranged in a cuboid structure, mold locking holes are evenly distributed in the four corners of the upper mold plate, an injection molding through hole and a stress ring are arranged in the center of the upper mold plate, the injection molding through hole is used for allowing an external injection molding head to penetrate through, and the stress ring is arranged in the injection molding through hole. The stress ring is used for enhancing the pressure bearing capacity of the upper die plate, and a pressure bearing column used for receiving external pressure is arranged on the upper die plate. Through the arrangement of the pressure-bearing column, the upper mold plate can receive external pressure conveniently, the pressure-bearing capacity of the upper mold plate can be enhanced through the stress ring, and therefore the upper mold plate structure is provided, the pressure-bearing capacity of the upper mold plate is enhanced, and the actual mold testing requirement is met.

The utility model provides a pressure testing mechanism for die design, which relates to the technical field of die testing equipment and comprises a frame. The sliding groove frame is fixedly connected to the side end of the frame; the sliding block is connected into the sliding groove frame in a sliding mode, and the side end of the sliding block is fixedly connected with a lead screw nut block. The first connecting seat is fixedly connected to the upper end of the lead screw nut block; the first rotating rod is connected to the side end of the frame, and the first rotating rod is connected with the first connecting seat; according to the scheme, the sliding groove frame with the sliding block and the lead screw nut block is arranged, and a linkage structure of the first rotating rod and the two-way lead screw is combined, so that the clamping mechanism can be flexibly adjusted according to molds of different sizes and shapes in the testing process; and meanwhile, through the design of a second rotating rod and a chain wheel and chain transmission system, overturning control over the angle of the clamped mold is achieved, and therefore pressure testing on the upper face and the side face of the mold is supported.

The utility model discloses a resistance ceramic tensile testing device, and belongs to the technical field of ceramic resistors. The resistor ceramic comprises a resistor ceramic substrate, an upper pressing cap and a lower pressing cap; the device further comprises a mold, a test assembly and a translation assembly, the mold comprises a lower mold and an upper mold which are oppositely arranged, the lower mold is provided with a plurality of first hole bodies used for inserting lower pressing caps, and the upper mold is provided with a second hole body used for inserting upper pressing caps; the first hole body and the second hole body can magnetically attract a pressing cap with a nickel-plated layer; the testing assembly comprises an elastic force measuring unit and a lifting unit, the upper die is connected with the lifting unit through the elastic force measuring unit, and the elastic force measuring unit can relatively extend and measure real-time drawing force; the lifting unit can change the elastic deformation quantity of the elastic force measuring unit. The translation assembly is connected with the lower die and can adjust the lower die to move in the horizontal plane. According to the utility model, the tensile test can be carried out aiming at the size and tensile coefficient of the resistance ceramic.

The invention relates to the technical field of automobile production process optimization, in particular to an automobile pipe clamp injection molding production process optimization method and system and a storage medium. Two-dimensional partitioning is performed by extracting key structural characteristics of the pipe clamp and combining wall thickness difference and functional requirements to ensure that the partitions fit the actual structure and functional requirements of the pipe clamp, adaptive partition temperature control and injection molding parameters are calculated in advance through multiple rounds of filling, cooling, stress simulation and quantitative evaluation, the mold testing frequency and the research and development period are greatly reduced, and the production efficiency is improved. Meanwhile, parameter stability is verified by simulating temperature fluctuation of a cooling system, production data are detected in real time, stress is detected through a solvent soaking method, CAE simulation results are compared, deviation reasons are analyzed, technological parameters are adjusted in a targeted mode, the batch quality problem caused by equipment fluctuation of traditional parameters is avoided, and the stability of the production process is improved.

The utility model relates to the technical field of lower die plate pressure bearing, and discloses a lower die plate structure which comprises a lower die plate, the lower die plate is of a cuboid structure, die locking holes are evenly distributed in the four corners of the lower die plate, the center of the lower die plate is provided with an installation position used for installing an external ejection mechanism, and the lower die plate is provided with an upper die plate and a lower die plate. The bottom of the lower die plate is provided with a stress ring used for improving the pressure bearing capacity of the lower die plate, the lower die plate is provided with an installation groove adjacent to the installation position, and the installation groove is used for installing an external oil cylinder in an embedded mode. The external oil cylinder is installed in the installation groove, pressing force can be conveniently provided for the mold, the stress ring improves the pressure bearing capacity of the lower mold plate, then the lower mold plate structure is provided, the pressure bearing capacity of the lower mold plate is improved, and the actual mold testing requirement is met.

The application discloses a mold detection method, device, system and storage medium, and relates to the technical field of process control. The method comprises the following steps: collecting first image information in a mold through a collecting device; comparing the first image information with a preset template image through a controller of an upper computer to detect a first residual state in the mold; wherein the preset template image comprises a normal template image and an abnormal template image, and the first residual state comprises a no-residual state and a residual state; if the mold is in the residual state, displaying first prompt information through an operation interface and processing the residual state of the mold, wherein the first prompt information is used for prompting the residual state in the mold; if the mold is in the no-residual state, outputting an ejection control signal to an executing device through the controller; and in response to the control signal, ejecting the mold through the executing device, thereby improving the detection accuracy and process stability of the injection molding machine in the part taking and mold closing process.

The utility model relates to the technical field of mould processing, and provides a mould testing device for mould processing, which comprises a base, two sides of the base are fixedly connected with fixing frames, the surface of the base is provided with a beating mechanism, the beating mechanism comprises a mounting frame and a first motor, the left side of the first motor is fixedly connected with the right side of the base, and the left side of the first motor is fixedly connected with the right side of the base. The output end of the first motor is fixedly connected with a first rotating rod, one end of the first rotating rod penetrates through the inner cavity of the base and is sleeved with a cam, and by arranging the beating mechanism, the cam can be driven to rotate to make a push plate move up and down in a reciprocating mode only by controlling the first motor to be started; the push plate can drive the first beating block to move up and down to beat the bottom of the mold, the elastic rope and the second beating block can be driven to rotate by controlling a second motor to be started, the second beating block can continuously beat the back face of the mold through rotation, the mold is vibrated in multiple modes, bubbles in the mold are eliminated, and the mold testing quality is improved.

The utility model belongs to the technical field of test dies, and relates to an induction assembly, a test die and a test device. The induction assembly comprises an inductor, an induction support and a height adjusting structure. The induction support is suitable for being connected with a mold assembly. The height adjusting structure is installed on the induction support and connected with the inductor, and the height adjusting structure is used for driving the inductor to reciprocate in the axial direction of the height adjusting structure. According to the induction assembly, height fine adjustment can be achieved without disassembling the inductor, and the debugging difficulty is lowered.

The invention is suitable for the field of finite element simulation technology improvement, and provides a pulp molding finite element simulation and experimental data benchmarking method, which comprises the following steps of: firstly, carrying out a drop experiment at the height of 760mm to obtain an acceleration mean value G1; through four types of parameter adjusting strategies, the elastic modulus / tangent modulus is adjusted independently or in a linkage mode, the deviation between the simulation value g1 and G1 is smaller than or equal to 5%, and a candidate parameter set is recorded; and performing secondary experiment at the height of 860mm to obtain G2, and screening a unique parameter meeting the condition that the deviation is less than or equal to 5% as a calibration value. The problem of parameter multiplicity is solved by adopting a double-height verification mechanism, and the data reliability is improved by combining mean value processing and outlier elimination. Calibration parameters can be stored in a material library for subsequent calling, so that the pulp molding drop simulation error is controlled within 5%, and the mold testing cost is reduced by more than 70%.

The application relates to the technical field of pipeline testing equipment, in particular to a pipe diameter simulation loading device which comprises a loading device for simulating the pipe diameter of a pipeline to be expanded and a moving device for moving the loading device; the loading device comprises a loading support base and a pipe diameter simulation structure; the loading support base is connected to the moving device for movement; a plurality of pipe diameter simulation structures are connected to the loading support base to form a simulation pipe diameter test cavity for the entry of an expanding die; the pipe diameter simulation structure comprises a pipe diameter simulation block and a pipe diameter adjusting structure; the pipe diameter simulation block is connected to the pipe diameter adjusting structure; the pipe diameter adjusting structure drives the pipe diameter simulation block to move radially relative to the loading support base; and the size of the simulation pipe diameter test cavity is adjusted to simulate different pipe diameters. The adjustable pipe diameter mode structure setting improves the convenience of expanding die testing, saves testing cost and enhances the flexibility of real-time working data testing of the expanding die.

The utility model relates to the technical field of injection mold testing, in particular to an injection mold cooling water channel flow testing device which comprises a water tank, the top end of the water tank is detachably connected with a testboard through bolts, and a fixing mechanism is arranged in the middle of the testboard. The water conveying pipe and the return pipe are symmetrically and vertically fixed to the inner walls of the two sides of the water tank, and the top ends of the water conveying pipe and the return pipe extend out of the test board and are provided with connecting mechanisms; the measuring pipe is vertically fixed to the side, close to the backflow pipe, of the water tank, and a flow testing mechanism is arranged in the measuring pipe. According to the utility model, the liquid level detection of the floating plate is matched with the distance sensor for use, so that non-contact flow measurement is realized, the problem of pressure drop deviation caused by mechanical resistance of a traditional impeller type flow meter is solved, the actual flow characteristics of a mold cooling water channel are truly reflected by test data, and the measurement precision and reliability are improved.

The invention relates to the field of injection mold testing, in particular to an injection mold testing device and a testing method.The injection mold testing device comprises a connecting pipe, one end of the connecting pipe is rotationally connected with a sealing valve matched with a mold waterway port in a sealed mode, and the other end of the connecting pipe is communicated with an external water pump waterway; the pressure gauge is used for detecting the pressure in the water path; the sealing shell slides on the surface of the connecting pipe; the pushing adjusting assembly is used for pushing the sealing shell, so that the sealing shell is close to the outer wall of the mold and is in contact with the outer wall of the mold; the sealing shell, the humidity sensor and the alarm are arranged, the mold waterway port is sealed through the sealing shell, if water leaks from the waterway port, leaked water can enter the sealing shell, so that the humidity parameter in the sealing shell is increased, the humidity sensor detects that the humidity exceeds a threshold value, and the alarm gives an alarm; no human eye is needed to observe whether the waterway port leaks water, and the measurement difficulty is reduced.

An embodiment of the utility model provides a universal test fixture, which comprises a base, a test support, a pressing mechanism, an upper die and a lower die, the test support comprises a support transverse plate, a support rod is arranged between the support transverse plate and the base, a mounting plate is arranged on the support rod, a lifting spring is arranged between the base and a linear bearing, and the lower die is arranged on the mounting plate. The device has the beneficial effects that the mounting plate arranged on the test bracket is synchronously pressed down by pressing the pressing mechanism on the test bracket, and the upper die arranged on the mounting plate is in contact with the lower die, so that a test product arranged between the upper die and the lower die is not required to be pressed down, and the test efficiency is improved. The upper die and the lower die are detachably arranged on the mounting plate and the base, the dies can be designed according to the types of produced products, the product testing is more convenient through the design, and the production efficiency is improved.