387results about How to "Avoid scrapping" patented technology

The invention provides a superlattice infrared detector chip manufacturing method, and belongs to the technical field of infrared detector manufacturing. The problem that the product performance or the product yield is low due to the fact that the precision fluctuation of the photoetching technology when the hard mask is removed is not considered in the current hard mask removing scheme is solved; comprising the following steps: forming a hard mask: growing the hard mask with a certain thickness on the surface of a wafer made of a superlattice material; photoetching an upper electrode table top; etching a hard mask: taking the photoresist as a mask, and etching the hard mask by adopting an ICP (Inductively Coupled Plasma) technology to obtain an upper electrode mesa mask pattern; degumming and cleaning an upper electrode table board; photoetching a lower electrode table board: adopting photoresist as a mask of a lower electrode table board area, and manufacturing the lower electrode table board area through a photoetching technology; carrying out ICP etching on the table board; performing wet etching on the table board; degumming and cleaning a lower electrode table board; forming a passivation layer film; opening holes in the passivation layer; manufacturing a gold electrode; the method is applied to preparation of the superlattice infrared detector chip.

The invention relates to a low-voltage cable with a protection structure applied to the technical field of cables, and the low-voltage cable comprises a low-voltage cable body and an anti-pull-damage protection mechanism, the anti-pull-damage protection mechanism comprises an anti-damage buffer box, a semi-cylindrical curved cable column is movably arranged in the anti-damage buffer box, and a pull detection supporting cylinder is embedded in the anti-damage buffer box in a penetrating manner; the anti-pulling-damage protection mechanism can provide a buffering protection effect for the low-voltage cable body, when the low-voltage cable body is subjected to large pulling force, the low-voltage cable body can be protected to a great extent, the low-voltage cable body is prevented from being deformed and damaged, the anti-pulling-damage protection mechanism further has an alarm function, and when the low-voltage cable body is subjected to large pulling force, the low-voltage cable body is prevented from being damaged. When the low-voltage cable body is pulled, the loss prevention intelligent alarm device starts the alarm to make an alarm sound to warn and remind related personnel and promote the related personnel to stop pulling the low-voltage cable body, so that the low-voltage cable body can be further prevented from being deformed and damaged due to large pulling force, and the safety of the low-voltage cable is greatly improved.

The invention discloses an intelligent capacitance measurement and control instrument, which comprises a measurement and control instrument body, a measurement and control mainboard, a split circuit board, a sensor group, a split assembly hole, an electric connection female seat, an electric connection pin, an electric connection sub-seat, a preliminary positioning structure, a locking structure and an internal guide electric structure. The invention has the following advantages and effects: through the design of the split circuit board, the current sensor, the voltage sensor, the temperature sensor and the humidity sensor can be respectively configured on the independent split circuit board, so that each sensor can be independently replaced and upgraded, and the maintainability and the expansibility of the system are improved; meanwhile, through a convenient and rapid fixing structure, the connection between the split circuit board and the measurement and control mainboard can be easily realized, and the flexibility of overall installation and the convenience of a user are improved.

The invention belongs to the technical field of weak-rigidity thin-wall component machining, and particularly relates to a composite material cutting device and method. The device comprises a machine tool, a clamp, a three-dimensional movement mechanism, a follow-up beam, a cutter feeding mechanism, a heating module and a follow-up supporting mechanism, the clamp is connected with a main shaft of the machine tool and used for fixing a thin-wall workpiece, the three-dimensional movement mechanism and the cutter feeding mechanism are both arranged on the machine tool, and the cutter feeding mechanism is used for cutting the thin-wall workpiece. The three-dimensional movement mechanism is located at the end of the fixed thin-wall workpiece, the output end of the three-dimensional movement mechanism is connected with the follow-up beam, the follow-up beam is parallel to the main shaft, the tail end of the follow-up beam is connected with the follow-up supporting mechanism, and the follow-up supporting mechanism is used for supporting a cutting part on the inner side of the thin-wall workpiece. The heating module is used for preheating a to-be-machined area of the thin-wall workpiece. The follow-up supporting mechanism is used for carrying out follow-up supporting, part deformation in the machining process is reduced, the machining precision is improved, and good universality and part adaptability are achieved.

The invention discloses a stirring friction additive manufacturing device with a continuous feeding function. The stirring friction additive manufacturing device comprises a stirring mechanism, a pressing mechanism, a feeding mechanism and a control system. The stirring mechanism comprises a stirring head and a discharging hole in the stirring head, a shaft shoulder is formed at the lower end of the stirring head, and the cross section of the discharging hole and the cross section of the bar are both square. The pressing mechanism comprises two charging barrels and a moving mechanism, and a switching hydraulic cylinder of the moving mechanism is used for driving the two charging barrel sets to reciprocate in the horizontal direction. A pressing piston cylinder is fixed at the top of each charging barrel; the feeding mechanism is used for feeding bars into the charging barrel, and the control system is used for controlling the movement of the moving mechanism; the invention further discloses an additive manufacturing method adopting the friction stir additive manufacturing device. The two charging barrels are alternately used, the time for a next bar to enter the discharging hole is shortened, switching of the two charging barrels can be completed within a short time under the condition that automatic control is adopted, and continuous work can be achieved.

The invention discloses a rattan-plaited product quality control system, and the system comprises an input unit which collects the data information of the quality of a rattan-plaited product in the production process; the calculation unit obtains the data information collected by the input unit and calls an association formula to calculate and obtain quality evaluation data of the rattan plaited product; and the display processing unit is used for acquiring the quality evaluation data output by the calculation unit and carrying out corresponding display alarm according to the quality evaluation data. According to the rattan plaited product quality control system, information of the product is collected through the input unit arranged on each production process, quality detection is carried out on the product after the current process is completed, data are collected, and quality evaluation data are calculated according to an association formula to achieve quality monitoring of the whole link. And the problem of product scrapping or multi-channel repair caused by quality problems of quality detection after complete production of the product can be avoided.

The invention discloses a circuit board hole copper metal heat treatment method and metal heat treatment equipment, the circuit board hole copper metal heat treatment method specifically adopts a laser beam to heat a conductive copper column so as to carry out metal heat treatment, and when the laser beam heats the conductive copper column, the metal heat treatment is carried out on the conductive copper column. The thermal field temperature of the side wall of the conductive copper column is lower than the melting point temperature of the conductive copper column, so that the conductive copper column on the circuit board can be independently heated by using the laser beam so as to carry out metal heat treatment on the conductive copper column, and the metal characteristic of the conductive copper column can be improved on the premise that the structure of the circuit board is not damaged; the conductive copper cylinder can meet the performance requirements of a high-calorific-value, high-frequency and high-speed circuit board, and particularly can improve the mechanical reliability performance such as flexibility and compactness of the conductive copper cylinder and the high-frequency and high-speed electric signal transmission performance, thereby improving the thermal stability and the electric signal transmission performance of the circuit board.

The invention discloses an intermediate double-gear axial correction value measuring device, a measuring method and a grouping matching method, and the measuring device comprises a bottom plate, and a first support device, a second support device, a helical gear positioning tooth, a straight gear positioning tooth, a gauge stand device and a contact indicating device which are disposed on the bottom plate. The first support device, the second support device, the bevel gear positioning tooth and the straight gear positioning tooth are respectively provided with a contact indicating device, and the first support device, the second support device, the bevel gear positioning tooth and the straight gear positioning tooth are completely attached to the matching face of the measured middle double gear to form a circuit loop. According to the invention, the measurement efficiency can be ensured, the measurement stability can be enhanced, the measurement difficulty is reduced, the measurement efficiency is improved, the measurement repeatability and consistency are improved, and the condition that the vibration value of the whole machine exceeds the standard or the meshing part is abnormally damaged or even scrapped due to poor meshing of gears caused by inaccurate measurement is effectively avoided.

The utility model relates to the technical field of assembly jigs, and particularly discloses an assembly jig of an extraction tool, which comprises a main body seat, a plurality of processing slots are arranged on the main body seat, the processing slots comprise a first slot and a second slot which are communicated with each other, the first slot is used for placing the extraction tool to be assembled, and the second slot is used for placing the extraction tool to be assembled. A sliding block and an elastic piece which are connected with each other are detachably installed in the second groove position, the elastic piece is located on the side, facing the first groove position, of the sliding block, and a pushing piece is detachably arranged on the side, away from the first groove position, of the sliding block and used for pushing the sliding block to slide in the direction of the first groove position so that the extraction tool can be pressed and assembled. According to the utility model, the quick assembly of the extraction tool can be realized, a plurality of products can be synchronously assembled, the assembly time and the labor cost are saved, and the assembly precision is high, so that the product quality is ensured.

The invention discloses a shear-type piezoelectric acceleration sensor structure with adjustable sensitivity, and belongs to the technical field of piezoelectric acceleration sensors, the shear-type piezoelectric acceleration sensor structure comprises a base, the base is provided with a first platform surface and a second platform surface, and the first platform surface and the second platform surface are different in height. The high second platform surface is provided with a polarized piezoelectric element, the short first platform surface is provided with unpolarized piezoelectric elements, the tops of the unpolarized piezoelectric elements and the polarized piezoelectric elements are provided with mass blocks, the mass blocks are fixedly connected with the base through screws, and the mass blocks are used for generating inertia force after sensing measured acceleration. And the inertia force is transmitted to the polarized piezoelectric element and the unpolarized piezoelectric element in a static friction mode. Adjustment and distribution of static friction force can be achieved by adjusting the tightening force of the screw, so that sensitivity adjustment of the acceleration sensor is achieved, the adjustment process is convenient and fast, the acceleration sensor does not need to be disassembled, and breakage and scrapping of piezoelectric elements caused by structural disassembly are avoided.

The utility model relates to the technical field of fan dismounting, in particular to a tool and a component for dismounting a fan impeller, and the tool for dismounting the fan impeller comprises a fixed seat, a connecting rod, a supporting seat, a jack and a top column. Firstly, the fixing base is installed on a hub of the impeller. Then, the jacking column is inserted into the guide hole; then, the base of the jack abuts against the supporting seat, and the screw abuts against one end of the ejector rod; and finally, an operator enables the screw rod to extend by operating the jack, so that the ejector rod moves, and the hub of the impeller is separated from the rotating shaft of the fan. Compared with a traditional dismounting mode, the dismounting task can be completed by one person through the tool for dismounting the fan impeller, the dismounting efficiency is improved, and manpower is saved. In addition, the hub is not prone to damage in the dismounting process, and the impeller is prevented from being returned to a factory to be repaired and scrapped. The whole structure is simple, manufacturing cost is low, and use is flexible.

The utility model discloses a cutter wear detector which is characterized in that the cutter wear detector comprises a shell, and the shell is provided with a blue laser emitting port and a blue laser receiving port; a blue laser transmitter, a blue laser receiver, a detector control unit and a built-in battery are arranged in the shell, and a blue laser diode is arranged in the blue laser transmitter; and the detector control unit is connected with the blue laser transmitter and the blue laser receiver. The beneficial effects of the utility model lie in that the detection dimension precision and the detection speed are improved, the time cost is reduced, and the product quality is improved; the tool wear detection efficiency is improved, meanwhile, the labor cost is reduced, and product scrapping and collision caused by manual tool setting errors are avoided.

The invention discloses a vehicle hub threaded hole size automatic detection device, and relates to the technical field of detection equipment, the vehicle hub threaded hole size automatic detection device comprises a base and a hub member, the top of the base is rotatably connected with a rotating disc, the axis of one side of the rotating disc is provided with a detection assembly, and the outer side of the detection assembly is provided with a clamping block for clamping and fixing the hub member. According to the automatic detection equipment for the size of the threaded hole of the vehicle hub, by introducing an alarm lamp and a circuit closing mechanism, when the size of the threaded hole of the hub does not meet a preset standard, a movable rod moves to an inclined area, so that a connecting copper sheet is in contact with a fixed copper sheet, a closed circuit is formed, and the alarm lamp is activated; the real-time alarm function can find and process unqualified hub parts in time, and the problem in the subsequent assembly or use process caused by the unqualified size of the threaded hole is avoided.

The invention discloses slow wire cutting equipment which comprises a machine body, a liquid storage pool is arranged on the machine body, a movable frame is slidably connected to the machine body, multiple sets of guide wheels are installed on the machine body and the movable frame, the slow wire cutting equipment further comprises a protection assembly, the protection assembly comprises a communication block, a protection column is inserted into the communication block, and the communication block is fixedly connected with the protection column. A through groove is formed in the center of a column body of the protection column and penetrates through the protection column, and a second water guide groove is formed in the lower end face of the protection column and located between the outer wall of the protection column and the through groove. According to the slow wire cutting equipment, a thin copper wire can be effectively protected, the situation that oxide skin and carbon residues generated in the workpiece cutting process change a discharging gap between the thin copper wire and a workpiece is avoided, and therefore the stable discharging state between the thin copper wire and the workpiece is guaranteed; fracture of the fine copper wire caused by change of the discharge gap when the workpiece is cut is effectively prevented, scrapping of the workpiece is avoided, and the machining quality and the working efficiency can be improved.

The present invention discloses a grooving device and a grooving method for furniture manufacturing plates, and relates to the technical field of plate grooving devices. It solves the problem that when grooving two sides of a plate, it is necessary to first process one side and then flip the processed side and process it again. After flipping, the position of the previously dug groove cannot be accurately located, which leads to deviations in the grooves on both sides of the plate, and the depth of the grooves cannot be accurately controlled, resulting in inaccurate groove dimensions and even the plate being scrapped due to excessively deep grooves. A grooving device and a grooving method for furniture manufacturing plates, comprising a frame, the frame comprising an upper top plate, a lower bottom plate and four support columns, and the four support columns are respectively located on the upper top plate. The present invention can simultaneously groove the plate, so that there will be no positional deviation in the grooves on both sides of the plate, and the depth of the grooves can be determined by a depth protection component before grooving, thereby ensuring the dimensional accuracy of the grooves after processing and avoiding the scrapping of the plate due to excessively deep grooves.

The present invention relates to the field of chip packaging technology, and discloses a quantum chip packaging device and a packaging process thereof, including a slide rail, wherein a cross frame is fixedly arranged inside the slide rail for supporting the bottom of a circuit board to be packaged, a support foot is fixedly arranged below the slide rail, a fixed plate is fixedly arranged on the side of the support foot away from the slide rail, a plurality of ammeters are fixedly arranged on the side of the fixed plate close to the slide rail for detecting current, a current transformer is fixedly arranged on one end of the multiple ammeters close to the slide rail for sensing the current in the circuit board to be packaged, a fixed rod is fixedly arranged on one side of each current transformer, a plurality of electric push rods are fixedly arranged on the side of the fixed rod close to the current transformer, and a controller is fixedly arranged on one end of the fixed plate. The invention detects the state of the pins after each welding through the current transformer, selects the faulty chip in time, reduces the effort of later detection, improves production efficiency, purifies the air in the workshop through the exhaust pipe, and is beneficial to the working environment of the staff.

The invention provides a hydraulic servo oil cylinder trunnion positioning and repairing method and a positioning device, which are used for carrying out in-situ welding and repairing on a fractured oil cylinder trunnion, and the method comprises the following control conditions: (1) heating an oil cylinder barrel before welding and carrying out heat preservation on the oil cylinder barrel after welding; (2) the tensile strength of the selected welding rod is higher than that of an oil cylinder barrel matrix; and (3) the welding rod is baked and heated before welding.

This invention discloses an automatic material stacking system for shaft components in a mesh belt isothermal normalizing furnace, relating to the technical field of shaft component stacking equipment. It includes a stacking platform with a hinge structure. The two halves of the hinge are rotatably connected by a rotating shaft. The two ends of the rotating shaft slide up and down along second guide rails. Two second guide rails are fixedly connected to both sides of the stacking frame. Each half of the hinge is fixedly connected to two traction ropes. The two traction ropes of the left half of the hinge are wound around two third rollers, and the two traction ropes of the right half of the hinge are wound around two first rollers. A third motor drives the two first rollers and the two third rollers to rotate synchronously. The rotating shaft is connected to two traction ropes, which are wound around two second rollers. A second motor drives the two second rollers to rotate synchronously. The stacking platform opens, closes, and rises and falls under the action of the traction ropes. A material frame is located below the stacking platform. This invention has a simple structure, is easy to operate, can replace manual stacking, save labor, and improve production efficiency.

The present invention discloses a tungsten chemical vapor deposition method, comprising: step 1, providing a bottom structure with a first adhesion layer and a second barrier layer formed on the surface. Step 2, performing tungsten chemical vapor deposition on the surface of the second barrier layer to form a tungsten layer. The tungsten layer is formed by superposition of a tungsten seed layer and a tungsten main layer. During the deposition of the tungsten seed layer, the process gas is introduced into the reaction chamber in the following steps: step 21, introducing a tungsten-containing precursor and introducing a first reducing agent gas at the same time. Step 22, introducing a second reducing agent gas after a first delay, and forming a tungsten seed layer by a nucleation reaction between the tungsten-containing precursor and the second reducing agent gas. The activity of the first reducing agent gas is less than that of the second reducing agent gas, and is used to prevent the ions of the tungsten-containing precursor from corroding the first adhesion layer when a switching operation failure occurs in the second reducing agent gas. The present invention can prevent abnormal nucleation and thus avoid product scrapping caused by abnormal nucleation, and finally improve the product yield.

The utility model belongs to the technical field of building materials, and particularly relates to a novel semi-hidden frame type building glass curtain wall which comprises a frame and a glass plate, the frame is composed of transverse rods and longitudinal rods, the glass plate is composed of a first glass sheet, a second glass sheet and an inner support, and the inner support is installed between the first glass sheet and the second glass sheet. The first glass sheet and the second glass sheet are located on the outer side of the inner support to form a clamping groove used for being connected with a frame, a plurality of guide grooves are distributed in the surface of the side, used for being connected with the transverse rod, of the inner support at equal intervals, the guide grooves are filled with adhesive glue, and a movable part is slidably installed in each guide groove. The adhesive in the guide groove is extruded into the guide groove through the movement of the guide moving part, so that the adhesive can be uniformly and fully distributed between the cross rod and the inner bracket, the adhesive coating work is automatically completed, the adhesive coating difficulty is reduced, the mounting efficiency and convenience are improved, and the sealing performance of the cross rod and the inner bracket can be fully ensured.

The application discloses a visual-tactile sensor, which comprises a touch module, a visual module and a first sealing element, wherein the touch module is an elastomer, and an internal part of the touch module is provided with a pattern layer so that the touch module produces pattern deformation when contacting with an external object; the visual module comprises a visual component and a shell, the shell is provided with an accommodating space and a first opening communicated with the accommodating space, the touch module is detachably arranged at the first opening, and the visual component is arranged in the accommodating space and used for collecting images of the deformation of the touch module; and the first sealing element is arranged at a connecting position of the touch module and the shell. In this way, the visual-tactile sensor of the application effectively realizes the sealing protection of the key interface part by arranging the first sealing element at the connecting position of the touch module and the shell, so as to protect the visual component and other precise elements arranged in the accommodating space from being polluted or damaged.

The utility model relates to the technical field of blanking and trimming dies, in particular to a blanking and trimming die for automobile parts, which comprises an upper die, a lower die, a cutter, a stamping device and a workbench, the lower die is mounted at the top of the workbench, and the stamping device is mounted at the top of the workbench. By arranging the pressure sensor, the vibration sensor, the infrared thermal imager, the laser displacement sensor, the display and the like, the pressure sensor is used for collecting the blanking load of the cutter in real time, the vibration sensor is used for monitoring abnormal vibration, the infrared thermal imager captures the temperature change of the cutting edge, and the laser displacement sensor is used for detecting the abrasion loss of the cutter. All kinds of data are synchronously transmitted to the displayer to be visually displayed, full-dimension real-time detection of the working state of the cutter is achieved, hidden dangers such as slight abrasion and hidden cracks of the cutter can be recognized in advance, die damage or material scrapping caused by sudden tipping during high-speed punching is avoided, and the stability and reliability of the machining process are remarkably improved.

The invention provides a turbine disc mortise side edge rounding model construction method. The turbine disc mortise side edge rounding model construction method comprises the steps that a part mortise structure model is constructed; building a model of the mortise structure according to design requirements; a mortise fillet is constructed according to the middle difference; performing mortise rounding establishment on a computer, and performing construction according to a median error; extracting the rounding surface in a sheet body mode to form a plurality of sheet bodies; rounding center virtual lines of the straight line segments are sequentially extracted along the groove type; constructing a rounding straight line of the straight line segment and other related lines; forming a trimmed rounded curved surface; constructing an envelope sweeping surface between adjacent straight line segments and trimming a curved surface; sewing the newly constructed swept surface to form a complete transition envelope surface by using a sewing function; sewing the middle-difference inverted round sheet body; sewing the rounding surface at one time along the groove shape to form a new rounding surface; and generating a program to finish numerical control machining of the part. The method has the advantages that the processing risk of over-cutting and under-cutting in the processing can be solved from the source, the high surface integrity of mortise side edge rounding is improved, 100% qualification is achieved, and higher value is created.

The utility model discloses an embedded buoy vibration monitoring device, and relates to the buoy vibration monitoring device technology field, the embedded buoy vibration monitoring device comprises a buoy, the buoy is formed by splicing four fan-shaped buoys, the center position of the buoy is provided with an installation through hole, the installation through hole is internally provided with an installation column, and the installation column is provided with a through hole. A positioning column is mounted on the side, close to the direction of the mounting through hole, of the fan-shaped buoy, positioning springs are mounted at the two ends of the other side of the positioning column, a positioning plate is mounted at the other end of each positioning spring, a telescopic rod is mounted in each positioning spring, and first positioning grooves are formed in the two sides and the two ends of the outer wall of the mounting column; according to the scheme, the problems that in the using process of an existing buoy, the movement of the ocean cannot be monitored according to the movement of the buoy, real-time data cannot be transmitted to a research station or a ship, environment changes cannot be coped with conveniently in time, and ocean and environment phenomena cannot be better predicted and evaluated are solved.

The invention discloses a semi-solid die-casting mold for manufacturing a shock-absorbing tower, comprising a die seat and a punch seat, wherein the punch seat is provided with a punch core, the die seat is provided with a die core, a cavity is provided between the punch core and the die core, a gate sleeve and a gate sleeve locking plate are provided on the die seat, the gate sleeve is communicated with the middle part of the cavity, a fixing plate is provided on the upper side of the die seat, a gate sleeve docking seat is provided on the fixing plate, a direct current channel is provided on the gate sleeve docking seat, a water cutting nozzle assembly is provided on the upper side of the die seat, a die foot, an ejector plate and an ejector bottom plate are provided at the bottom of the punch seat, an ejector is provided between the ejector plate and the ejector bottom plate, and a plurality of groups of buckle machine assemblies are provided between the fixing plate, the die seat and the punch seat, so that when opening the mold, the die seat and the punch seat are separated only after the fixing plate and the die seat are separated for a distance; the central feeding method is adopted to greatly shorten the travel of the flow channel, reduce the energy loss of aluminum liquid in the filling process, and the die-cast product can be directly used without any treatment.

The utility model relates to the technical field of positioning stamping, and discloses special-shaped metal sheet positioning stamping equipment which comprises an operation table, an electric push rod is fixedly connected into the operation table, a sliding plate is fixedly connected to the top of the electric push rod, and two supporting columns are fixedly connected to the top of the sliding plate. The top of each supporting column is fixedly connected with a sliding block, the sides, far away from each other, of the sliding blocks are fixedly connected with two first square sliding blocks, the exteriors of the first square sliding blocks are slidably connected with triangular sliding blocks, the exteriors of the triangular sliding blocks are slidably connected with supporting frames, and the tops of the triangular sliding blocks are fixedly connected with clamping plates. According to the stamping die, it is guaranteed that the position of a thin plate is fixed without deviation during stamping, stamping size errors or workpiece scrapping caused by positioning deviation are avoided, vibration and shaking are reduced, the stamping die is particularly suitable for stamping scenes with complex shapes or high-precision requirements, and the consistency of machining quality is improved.

The application discloses a slow wire cutting equipment, which comprises a machine body, a liquid storage pool arranged on the machine body, a moving frame in sliding connection with the machine body, a plurality of guide wheels arranged on the machine body and the moving frame, and a protection assembly. The protection assembly comprises a communication block, a protection column is inserted into the communication block, a through groove is arranged in the center of the column body of the protection column, the through groove penetrates through the protection column, and a second water guide groove is arranged in the lower end surface of the protection column and located between the outer wall of the protection column and the through groove. The slow wire cutting equipment can effectively protect the thin copper wire, avoid the change of the discharge gap between the thin copper wire and the workpiece caused by the oxide skin and carbon residue generated in the workpiece cutting process, ensure the stable discharge state between the thin copper wire and the workpiece, effectively prevent the thin copper wire from being broken due to the change of the discharge gap during the workpiece cutting, avoid the workpiece from being scrapped, and further help to improve the machining quality and the working efficiency.

The utility model relates to the technical field of battery manufacturing, and discloses an electrode assembly which comprises a first pole piece, a second pole piece, a first diaphragm, a second diaphragm and a supporting assembly, when the electrode assembly works, the battery cell body expands, and the first supporting layer attached to the inner wall surface of the accommodating space supports the battery cell body, so that expansion and displacement of the battery cell body towards the accommodating space are inhibited, interface contact is improved, and lithium precipitation is improved; the second supporting layer is arranged in the first supporting layer, and the elastic modulus of the second supporting layer is smaller than that of the first supporting layer, so that the first supporting layer can contract towards the interior of the first supporting layer under a relatively high pressure to adapt to relatively high expansion of the battery cell body, and interface contact is guaranteed; therefore, the normal use of the electrode assembly at the end of the battery cell circulation is ensured.

The invention relates to an online dragging detection mechanism for a brake caliper. The online dragging detection mechanism comprises an air pressure pressurization module, a dragging detection module, an online control module and a feedback and alarm module, the air pressure pressurization module is used for applying air pressure to the brake caliper and simulating pressure change in the braking process; the dragging detection module is connected with the air pressure pressurization module and is used for evaluating the dragging condition; the online control module receives the air pressure value of the air pressure increasing module and the dragging torque analysis result of the dragging detection module, automatically judges the detection result and outputs the judgment result to the feedback and alarm module. By adopting the air pressure pressurization module and the on-line detection module, 100% detection of dragging of the brake caliper is realized, the detection frequency and efficiency are improved, hydraulic pressurization is replaced by air pressure, the problem that a brake is scrapped after hydraulic detection is avoided, the detection cost is reduced, and the utilization rate of a production line is improved.