488 results about "Calipers" patented technology

The invention discloses a hydraulic machine with a safety protection function, and relates to the technical field of hydraulic machines. Auxiliary stand columns are installed on the periphery of the outer surface of the supporting column set, springs are arranged on the outer surfaces of the auxiliary stand columns in a sleeving mode, fixing blocks and four-column frame assemblies are fixedly connected to the outer surfaces of the bottoms of the supporting columns, when the supporting columns operate downwards to apply pressure, a protection plate can slide downwards rapidly, and the outer surface of the protection plate is protected by irregular rubber bodies; when the supporting columns are extruded, scattered small parts can absorb kinetic energy through the irregular colloid on the outer surface of the protection plate, and the service life of the protection plate is effectively prolonged. The working table and the control table are arranged at the bottom of the supporting column assembly, the working table and the control table are integrated and detachable, and space is effectively saved. The safety of operators and a machine is guaranteed through the guard plate, the irregular rubber body and the brake when the hydraulic machine works, and normal operation of the hydraulic machine is guaranteed.

The present application relates to the technical field of vehicle braking, and provides an electric parking control method and system, an electronic device, and a storage medium. According to the solution, a vehicle driving signal is measured on the basis of the current vehicle state; when the current vehicle state is a parking obstruction state, the system determines, on the basis of a vehicle door signal, a vehicle speed signal, and a caliper signal, whether a state switching condition occurs; if the state switching condition has occurred, the vehicle state is switched to a vehicle sliding state; and when the vehicle state is switched from the parking obstruction state to the vehicle sliding state, it indicates that the driver has a get-off intention and a parking operation is not being performed or cannot be performed on a vehicle at this time, an electric parking instruction is sent to control calipers to clip so as to perform parking control on the vehicle. In this way, the vehicle can be actively parked in situ when the driver forgets to press an electric parking brake button, so that the vehicle sliding phenomenon is effectively avoided, thereby improving the safety of the vehicle, and improving the driving experience of the driver.

Systems and methods described herein relate to a string measurement system including a gauge body including a string opening configured to receive a string of an instrument. An electronic gauge is coupled to the gauge body, and is configured to: engage the string disposed in the string opening to measure a width of the string, and generate a first signal indicative of the width. The system may include a display configured to generate a display a width of the string. The electronic gauge may include a pair of calipers that are configured to engage the string of the instrument for determining a width of the string.

The present invention relates to the field of mechanical technology, and discloses a four-axis hydraulic double-station tooling for brake calipers based on continuous operation, including a bridge plate, a hydraulic fixing part is symmetrically installed on the top of the bridge plate, a clamp is symmetrically fixedly connected to the bottom of the bridge plate, and processing parts are arranged at the clamp and the hydraulic fixing part, the bridge plate is connected to an external driving device, a ratchet group is symmetrically installed on the outside of each hydraulic fixing part, and a gear group is installed on the outside of the hydraulic fixing part. The tooling greatly simplifies the operation process in the installation and disassembly of the processing parts. When contacting and installing the processing parts, the operator only needs to pull the turning rod to drive the fixed rack to achieve simultaneous clamping or loosening of multiple processing parts. Compared with the traditional tooling that needs to operate the clamps one by one, this centralized operation method greatly saves time and labor costs, significantly improves work efficiency, and makes the entire processing process smoother and more convenient.

The invention discloses a numerical control vertical lathe with a detachable clamping mechanism, and relates to the technical field of machining, the numerical control vertical lathe comprises a turning frame, a first electric guide rail, a second electric guide rail and a machining table, the first electric guide rail and the second electric guide rail are used for controlling the turning frame to move, and the machining table is used for bearing a workpiece; the lathe turntable is driven after being decelerated by a motor through a speed reducer, a workpiece chuck is clamped to the top of the lathe turntable and used for off-line centering adjustment of workpieces, worm calipers are arranged at the top of the workpiece chuck and used for clamping the workpieces, and an air pressure locking device and a magnetic floating positioning device are arranged on the lathe turntable. The pneumatic locking device is used for locking the lathe turntable and the workpiece chuck, and the magnetic floating positioning device is used for positioning and guiding the lathe turntable and the workpiece chuck. Workpiece centering operation which consumes long time is completed off line, the machine tool shutdown clamping time is greatly shortened, and the equipment utilization rate is increased.

The invention discloses an enhanced straight line detection method and system based on gradient pooling. The method comprises the following steps: defining a detection area in an image and dividing the detection area into a plurality of sampling calipers; carrying out average pooling processing on the data to generate a noise-reduced and dimension-reduced low-dimensional feature map; on the low-dimensional feature map, coarse positioning edge points are screened out based on double constraints of gradient amplitude and direction consistency; then, returning to the original pixel gray data, and carrying out sub-pixel-level interpolation positioning along the normal direction of the gradient direction of the coarse positioning edge point to obtain a high-precision fine positioning edge point; and finally, after outliers are eliminated by adopting a random sampling consistency algorithm, fitting is carried out on inner points through a least square method, and a final straight line parameter is obtained.According to the method, through the synergistic effect of pooling noise reduction, gradient constraint screening, sub-pixel fine positioning and robust fitting, the contradiction in precision, efficiency and noise resistance in the prior art is effectively solved, and the accuracy, efficiency and noise resistance of the system are improved. And the comprehensive performance of straight line detection is obviously improved.

The invention discloses a caliper rectangular ring assembling device which comprises a pressing rod and a clamping device, the pressing rod comprises a rod body internally provided with an air passing channel and a cover plate fixed to one end of the rod body, and a mounting gap communicated with the air passing channel is formed between the cover plate and the rod body and used for containing a rectangular ring; and the air pump assembly communicates with the end, away from the mounting gap, of the air passing channel so as to exhaust or ventilate the mounting gap through the air passing channel. According to the caliper rectangular ring assembling device provided with the mounting gap and the air passing channel, after an operator completes insertion connection of a pressing rod and calipers, a rectangular ring is just flatly clamped into a rectangular ring mounting groove, the whole mounting process is simple and convenient, the operator does not need to take the rectangular ring to press the rectangular ring into the rectangular ring mounting groove, and the working efficiency is improved. The rectangular ring is prevented from falling into the concave position of the calipers in the manual installation process, the problem that the rectangular ring cannot be pressed flat due to the fact that the rectangular ring is not aligned with the rectangular ring installation groove is also avoided, the assembly difficulty is reduced, the assembly time is saved, and the assembly efficiency is improved.

The invention relates to the technical field of electromagnetic brakes, in particular to an electromagnetic hydraulic braking structure and electric control electromagnetic hydraulic braking calipers. The electromagnetic hydraulic braking structure comprises a combined piston assembly, the combined piston assembly comprises a piston cylinder, the piston cylinder is provided with a first piston cavity and a second piston cavity which are communicated with each other, the first piston cavity is provided with a combined outer piston and a combined inner piston in a penetrating mode, and the second piston cavity is provided with a pressurizing small plunger in a penetrating mode; an oil storage cavity is formed outside the piston cylinder, and a plurality of oil holes are formed in the side wall of the piston cylinder and are communicated with the first piston cavity and the oil storage cavity; the electromagnet assembly comprises an armature, and the armature abuts against the combined inner piston; and the hydraulic braking assembly is internally provided with an oil way and communicates with the second piston cavity, and multi-stage pressure amplification is achieved through double-cavity linkage. Gap fluctuation between the brake pad and the brake disc in the braking process can be effectively controlled, the characteristic of large suction force of the tail end of the electromagnet is efficiently utilized, and meanwhile the stable braking effect is achieved.

The invention relates to the technical field of metal bar drawing, in particular to metal bar drawing production equipment which comprises two platforms, drawing mechanisms are mounted at the tops of the two platforms, each drawing mechanism comprises a first motor, the first motors are fixedly mounted on the side portions of the two platforms, and the second motors are fixedly mounted on the side portions of the two platforms. A first threaded rod is fixedly installed at the output end of the first motor, the sliding grooves are formed in the two platforms, the first threaded rod is rotatably installed in the sliding grooves, the fixing block is installed on the surface of the first threaded rod in a threaded mode, and three-jaw calipers are fixedly installed on the side portion of the fixing block. The mold frame is arranged between the two platforms, and a mounting groove is formed in the mold frame. Through the arrangement of the drawing mechanism, the drawing die can be automatically replaced, multiple deformation is completed by sequentially passing through the drawing holes with different diameters, and the tedious steps of multiple times of rod unloading and die penetrating again in the traditional process are reduced.

This invention discloses a novel cup rim measuring instrument, belonging to the field of measuring instrument technology. It aims to solve problems encountered when using conventional calipers to measure the rim of paper cups, such as significant influence from sample molding, substantial human error, insufficient accuracy, and the inability to avoid seam errors. The measuring instrument includes a base, a measuring cup pan, a dial, a steel bar, a calibration block, a turntable, a digital micrometer, an adjusting block, a locking structure, and an elastic reset component. High-precision measurement is achieved by using a flexible steel bar to conform to the cup rim contour, combined with the digital micrometer. A tension spring provides uniform preload, and the locking structure fixes the length of the steel bar. The mating structure between the adjusting block and the measuring head ensures accurate data. This measuring instrument offers precise and stable measurements, is easy to operate, and is suitable for various types of paper cups, especially for paper cup production quality inspection scenarios with high requirements for measurement accuracy and consistency.

The invention discloses a self-adaptive fixing and calibrating system for various calipers, which comprises a caliper fixing measuring jaw support base, a caliper push-pull button fixing unit, a caliper body tail movable support end unit and a sounding ruler calibration unit, and is characterized in that a caliper fixing measuring jaw support end is arranged on the caliper fixing measuring jaw support base; a caliper body tail supporting end is arranged on a movable assembly of the caliper body tail movable supporting end unit, and a caliper fixed measuring jaw and a caliper body tail of a calibrated caliper are arranged on the caliper fixed measuring jaw supporting end and the caliper body tail supporting end respectively. The caliper fixed measuring jaw and the tail portion of the caliper body are pressed tightly through movement of the movable assembly towards the caliper fixed measuring jaw, the caliper push-pull button fixing unit is used for fixing the caliper push-pull button, and the depth ruler calibration unit is arranged on the base and comprises a measuring block and a first driving mechanism. The first driving mechanism is used for driving the gauge block to move in the caliper body direction and driving the gauge block to move away from or close to the caliper depth gauge.

The utility model discloses an assembly type wheel structure for a toy, which comprises a support body, a tire, a brake disc, calipers and a decorative cover, the end face of the outer end of the support body is inwards provided with a mounting cavity, the support body and the brake disc are arranged in a relative rotation manner, and the inner side of the brake disc is provided with a connecting convex column; the end of the connecting protruding column sequentially penetrates through the mounting cavity and the inner end of the supporting body and is connected with the building block vehicle bottom in an inserted mode so that the brake disc can be fixedly arranged in the mounting cavity, the calipers are arranged on the periphery of the brake disc in an inserted mode, and the decorative cover is arranged at the opening end of the mounting cavity in an inserted mode. Compared with the prior art, the wheel structure disclosed by the utility model can present a better simulation decoration effect.

1. Name of the designed product: adapter code for four calipers (scooter). 2. Use of the designed product: adapter code for calipers of the rear brake system of a scooter. 3. Design points of the designed product: in shape. 4. Picture or photo that best indicates the design points: perspective view.

The utility model provides a self-service haircut cover which comprises a cover body, the cover body comprises a supporting plate and a plurality of caliper strips, each caliper strip comprises a connecting section and a bent section, the connecting sections are connected to the supporting plate, the bent sections extend in the direction close to the center of the cover body, and the connecting sections are connected to the supporting plate. The caliper strips surround the supporting plate and are arranged at intervals in the circumferential direction, so that a cavity for containing the head of a user is defined by the caliper strips, a first opening is formed in the bottom of the cavity, silica gel sheets are arranged on the caliper strips, and the sides, facing the center of the cover body, of the silica gel sheets are of arc structures; the haircut cover can improve the symmetry and uniformity of haircut.

The utility model discloses a machine tool for brake production relates to brake production technical field, including processing machine tool and servo electric jar, the processing machine tool inside chamber both sides are equipped with clamping assembly, the servo electric jar fixed mounting is in the processing machine tool inside chamber upper end, the servo electric jar output is connected with support plate through first rotation subassembly, be connected with mounting plate through adjusting assembly on the support plate, be equipped with high frequency sound wave sensor on the mounting plate, be equipped with the nozzle on the mounting plate, be equipped with the first servo motor of fixed mounting on the mounting plate, the first servo motor output is connected with the rotary rod, the rotary rod is connected with the connecting rod through the clamping mechanism, the cutting tool is equipped with on the other end of connecting rod, the utility model discloses the setting through the clamping mechanism, is convenient for cutting tool to dismantle replacement, through the setting of high frequency sound wave sensor, realizes the intelligent, accurate monitoring of cutting tool state.

This invention provides a method and apparatus for calibrating calipers with dial indicators. The method includes: Step S1, adjusting the tailstock of the length measuring instrument to a position exceeding the range of the dial indicator caliper, and installing the dial indicator caliper onto the worktable; Step S2, adjusting the tailstock of the length measuring instrument to a predetermined position, with the two measuring ends of the dial indicator caliper contacting the measuring caps on the tailstock and headstock respectively; Step S3, adjusting the state of the worktable until the reading of the dial indicator caliper is at an inflection point; Step S4, reading the reading of the dial indicator caliper, and comparing the distance from the tailstock position with the reading of the dial indicator caliper to calculate the difference. If the difference is within the allowable error range, it meets the requirements; Step S5, after completing the calibration at one calibration distance, changing the position of the tailstock to another calibration distance, and repeating Step S4 to perform the calibration at the other calibration distance. This invention solves the problem of the complex and cumbersome calibration process of dial indicator calipers in the prior art.

The invention provides an EPB redundancy control method and system, and belongs to the technical field of vehicle control. The method comprises the following steps: acquiring states of a main controller and an auxiliary controller; in the non-EPB operation process, the main controller or the auxiliary controller is switched to control the EPB electronic calipers according to the states of the main controller and the auxiliary controller; in the EPB operation process of the main controller, when it is confirmed that the main controller fails according to the state of the main controller, the auxiliary controller is switched to control the EPB electronic calipers. The two independent controllers are used for independently and simultaneously controlling the two paths of EPB electronic calipers respectively, and real redundant parking is achieved.

The utility model relates to the technical field of milling tools, in particular to a brake caliper multi-angle positioning milling tool which comprises a mounting frame, a driving assembly is arranged in the mounting frame, the driving assembly comprises a lateral sliding assembly and a double-shaft sliding assembly, the mounting frame is of an L-shaped structure, the lateral sliding assembly is arranged on the side wall of the mounting frame, and the double-shaft sliding assembly is arranged on the side wall of the mounting frame. The double-shaft sliding assembly is arranged at the bottom of the mounting frame, a connecting plate is fixed to the top end of the double-shaft sliding assembly, a debugging assembly is fixed to the top end of the connecting plate, and the debugging assembly comprises a frame, an angle scale arranged in the middle of the frame in a sleeving mode and a rotating rod arranged in the angle scale; according to the brake caliper butt-joint plate, the four butt-joint plate bodies are arranged, the inclined faces formed by the four butt-joint plate bodies are fixedly connected with the brake caliper, due to the fact that the inclined faces and the brake caliper form a unified structure, the caliper and the butt-joint plate bodies can be fixedly connected, the four butt-joint plate bodies can conduct personalized angle deflection according to the angle requirement for caliper machining, and the machining requirement is met.

The utility model discloses surface polishing equipment for ceramic handicraft production, which comprises a ceramic and further comprises a self-adaptive polishing assembly, the self-adaptive polishing assembly comprises an inner caliper and an outer caliper which are symmetrically distributed on the inner side and the outer side of the ceramic, rotating shafts are arranged at the ends of the inner caliper and the outer caliper, polishing balls are installed on the outer sides of the rotating shafts, and the polishing balls are arranged on the outer sides of the inner caliper and the outer caliper. A tension spring is connected and installed between the inner caliper and the outer caliper, a rotating rod is arranged at the end of the inner caliper and the end of the outer caliper, a base is installed on the outer side of the rotating rod, the rotating rod is rotatably installed in the base, a support is fixed to one side of the base, and a motor is installed on one side of the support in a transmission mode. And the lifting assembly comprises a lifting plate fixed to one side of the motor, a guide rail is slidably installed in the lifting plate, a bottom plate is installed on one side of the guide rail, an air cylinder is installed on one side of the bottom plate, and the output end of the air cylinder is connected to one side of the lifting plate. The self-adaptive polishing assembly can achieve the effect of polishing the internal and external positions of the porcelain at the same time, and meanwhile damage caused by rigid contact between a polishing ball and the porcelain is avoided.

The invention discloses a brake control method for a multi-axle commercial vehicle. The method comprises the following steps: determining whether a PV characteristic value updating condition is met or not; if yes, calculating an actual PV characteristic value; determining the number of calipers according to the actual PV characteristic value and the braking process; and PID control parameters corresponding to the number of the calipers are determined, wherein the PID control parameters are used for the next braking process. According to the method, the actual PV characteristic value is calculated on line, whether the system controlled by the current motor corresponds to 2 calipers or 4 calipers is automatically recognized, then the PID parameters corresponding to the number of the calipers are selected, vehicle type arrangement does not need to be distinguished, on the basis that unified software is adopted for different vehicle type arrangement, respective better control parameters can be achieved, and the control efficiency is improved. And the software management and control cost and the risk caused by a software flashing error can be reduced.

The utility model relates to the field of fishing articles, and discloses an inverted conical fishing rod handle convenient to disassemble and replace, which comprises a support rod, a handle body is slidably mounted on the outer wall of the support rod, a fixing bolt is mounted at the bottom end of the inner wall of the support rod in a threaded manner, and the outer diameter of the fixing bolt is equal to the diameter of the inner wall of the handle body. Fixing blocks are fixedly connected to the bottom ends of the front side and the rear side of the fixing bolt correspondingly, buttons are slidably connected to the opposite ends of the fixing blocks correspondingly, second grooves are connected to the opposite ends of the buttons through caliper assemblies correspondingly, the second grooves are formed in the left side and the right side of the handle body correspondingly, and first grooves are formed in the front side and the rear side of the handle body correspondingly. According to the utility model, the handle body can extend downwards along the long groove and can be switched between double holding formed by matching with the supporting rod and single holding formed by clamping into the short groove, so that the use experience of a fisherman is improved, and the handle body can be conveniently disassembled under the action of the fixing bolt.

1. The name of the design product: caliper (CBA-13-84-P2). 2. The use of the design product: brake caliper for motorcycle. 3. The design features of the design product: in shape. 4. The picture or photo that best indicates the design features: perspective view 1.

A computer-implemented method trains an artificial intelligence model based on neural networks to predict physical features of a brake caliper from a geometric representation, such as a mesh. The method provides for receiving geometric representations of brake calipers, each comprising local regions such as vertices and faces, and local information relating to the geometry. The artificial intelligence model is trained using input data comprising the received local information and output data relating to physical features of the brake caliper, including fields of stresses due to the pressure of brake fluid and the friction force, and the integral of the elastic deformation energy. The system comprises an input interface to access training data and a processor module configured to train the artificial intelligence model. The trained artificial intelligence model predicts physical features of a brake caliper from the geometric representation, providing output data such as stress fields and deformation energy.

The utility model discloses a pair of open type Rogowski coil discharge detection calipers, relates to the field of alternating current detection, and aims to solve the problems that an existing Rogowski coil cannot be installed remotely to reduce the risk of electric shock and the measurement precision is not up to the standard due to the fact that the Rogowski coil is easy to deform due to extrusion during measurement. The clamp comprises a clamp body, a fixed clamp and a movable clamp, the fixed clamp is fixed to the upper end of the clamp body, and the movable clamp is slidably connected to the clamp body; a Rogowski coil I is installed in the fixed clamp, a fixed contact is arranged at the upper end of the fixed clamp, the Rogowski coil I is connected with the fixed contact, a Rogowski coil II is installed in the movable clamp, a movable contact is arranged at the upper end of the movable clamp, the Rogowski coil II is connected with the movable contact, and the movable contact can be connected with the fixed contact in an inserted mode. The method is used for detecting the current of the alternating current line.

The invention provides an electronic mechanical brake clamping force compensation system and a control method.The electronic mechanical brake clamping force compensation system comprises a brake pedal, a brake controller and electronic mechanical calipers arranged at the wheel ends of four wheels, each electronic mechanical caliper comprises a caliper body, a caliper motor, a transmission mechanism and a caliper controller, a brake force requirement calculation module is arranged in the brake controller, and a brake force requirement calculation module is arranged in the brake controller. A target clamping force correction module, a wheel edge braking force control module, a brake disc temperature calculation module, a caliper abrasion calculation module and a wheel speed estimation module are arranged in the caliper controller. According to the method, the target clamping force and the clamping force estimated value of the electronic mechanical calipers are compensated and corrected by adopting the working parameters of the actuator in the electronic mechanical braking system and other system parameters which are easily obtained on the whole vehicle, so that the control precision under various complex working conditions is improved, the braking smoothness is favorably improved, and the user experience is improved.

The utility model discloses a casting model structure for reducing sand slag defects of large calipers, which comprises a pouring cup, a liquid outlet of the pouring cup is communicated with a transverse pouring gate, the transverse pouring gate is connected with a vertical pouring gate, and one end of the vertical pouring gate close to the transverse pouring gate is provided with an inclined section for buffering the flow velocity of molten iron. The end, away from the cross gate, of the vertical gate is connected with a wedge-shaped water inlet piece, the end, away from the vertical gate, of the wedge-shaped water inlet piece is connected with a casting, the cross gate communicates with a first overflow block, the first overflow block is located between the filter piece and the sprue cup, and the end, away from the filter piece, of the vertical gate communicates with a second overflow block; according to the utility model, the inclined section can effectively avoid the phenomenon that molten iron impacts the sand core, so that the molten iron flows stably, the phenomenon of poor sand washing during casting of large calipers is effectively improved, the first overflow block and the second overflow block can fully absorb solid phase impurities and a small amount of sand slag in the molten iron, and the service life of the sand core is prolonged. The problem of internal defects of large calipers is solved.

The utility model relates to the technical field of measuring calipers, in particular to a special caliper for measuring the symmetry degree of a circular mould keyway, which comprises a caliper body, a short clamping foot piece and a long clamping foot piece are arranged on the caliper body in a sliding manner, a fine adjustment assembly is arranged on one side of the short clamping foot piece and is arranged on the outer side of the caliper body in a sliding manner, and a clamping pin is arranged on the long clamping foot piece. The utility model aims to solve the problems that the diameter of a circular mold is large, the weight is heavy, and the circular mold is difficult to move to a three-coordinate measuring machine, and the caliper is light and portable, is convenient to carry, is convenient to carry, and is convenient to use. The device can be directly used on a production line site, does not need to move the ring mold, meets the actual detection requirements of the production site, and reduces the detection cost and the operation complexity.

This utility model discloses an irregularly shaped caliper for measuring the wall thickness of low-carbon steel radiators, relating to the field of irregularly shaped vernier calipers. It aims to solve the problem that conventionally structured vernier calipers cannot measure the wall thickness of installed radiators. The technical solution involves an L-shaped fixed measuring head, comprising a horizontal and a vertical section. The horizontal section has an arc-shaped structure suitable for measuring low-carbon steel radiators of different structures. A fixed claw is mounted on the vertical section. A sliding measuring head is equipped with a sliding claw, which is coaxially arranged with the fixed claw. The L-shaped fixed measuring head has upper and lower arc-shaped surfaces on the horizontal section, which can be adapted to the irregularly shaped structures of low-carbon steel radiators, such as arc protrusions and grooves, enabling the measurement of radiator wall thickness without cutting the radiator. A protective tube is also provided on the sliding measuring head, increasing the structural strength of the sliding claw and protecting both the sliding and fixed claws.

The utility model relates to the technical field of diesel engine piston rings, and discloses diesel engine piston ring dismounting calipers which comprise a guide rail and clamping plates arranged on the two sides of the center position of the front face and the back face of the guide rail, and the guide rail is movably connected with the clamping plates. The handle is arranged under the inner end of the bottom of the clamping plate, and the clamping plate is movably connected with the handle. According to the calipers for disassembling and assembling the piston ring of the diesel engine, after the piston ring is fixed through the clamping plate, the piston ring is expanded in the arc direction of the guide rail through rotation of the handle, it is ensured that the piston is not excessively expanded to affect the performance of the piston ring, and the piston ring is conveniently and reliably installed on a piston ring groove. Therefore, the installation piston ring is simple in structure, small in size and light in weight, and operation can be completed with one hand.

The invention discloses a detection device and a detection method for electronic control mechanical braking. The detection device comprises a detection frame; the detection frame is provided with a detection plate and a top plate; a multidirectional adjusting assembly; the multidirectional adjusting assembly is arranged on the detection plate; mounting a bracket; the mounting bracket is arranged on the multidirectional adjusting assembly; a rotatable brake disc is arranged on the mounting bracket; a lifting assembly; a connecting plate is arranged on the lifting assembly; the connecting plate is used for driving the electric control mechanical brake calipers to descend; the lifting assembly is arranged on the top plate; the beneficial effects of the invention are that the above scheme depends on the detection plate and the top plate of the detection frame to provide a stable installation reference, and the brake disc on the installation support is driven by the multidirectional adjustment assembly to accurately adjust the position, thereby achieving the high-precision alignment of the electronic control mechanical brake calipers on the connection plate. The technical defects that an existing detection device is large in alignment error and inconsistent in detection benchmark due to limitation of an alignment mode are effectively overcome.