3345 results about "Motor shaft" patented technology

The invention relates to the technical field of motor shaft machining, in particular to a cold forging step-by-step extruding and stretching method for motor shaft preparation, which comprises the following steps: acquiring forward extrusion approximate average force, and calculating initial deformation resistance of a workpiece based on the forward extrusion approximate average force, obtaining a target parameter increment of a reverse extrusion process and an average inner diameter of a reverse extrusion target hollow part to determine a target volume deformation amount, and determining a process difficulty evaluation index based on the initial deformation resistance and the target volume deformation amount; the adjusting strength of the set value of the punching force is obtained, and the correlation between the process difficulty evaluation index and the follow-up process adjusting strength is determined based on the multiple adjusting strength of the current batch of workpieces and the process difficulty evaluation index; and in response to the correlation adjustment, determining a difficulty threshold of a difficulty state in which the workpiece is machined based on the process difficulty evaluation index. According to the invention, the stamping force and speed of the subsequent process are adaptively adjusted through the initial resistance and annealing softening effect of the material.

The invention relates to the technical field of logistics warehouse storage equipment, in particular to a speed reduction control method for a high-speed motor driven hydraulic system, which comprises the following steps: S1, the output torque of a high-speed motor is transmitted to a gear pump through a motor shaft, a planetary reducer and a planet carrier in sequence to drive the gear pump to work; s2, acquiring a three-phase current instantaneous signal and a direct current bus voltage signal, and performing preprocessing and frequency spectrum conversion to determine a current frequency spectrum; s3, in the current frequency spectrum, extracting an energy value in a preset frequency band with the meshing frequency and harmonic waves of the planetary gear as the center, and calculating to obtain a disturbance characterization value of the planetary gear; s4, determining a torque smooth adjustment coefficient according to the planet wheel disturbance characterization value; and S5, dynamically adjusting a dynamic response parameter of a torque control ring of the high-speed motor according to the torque smooth adjustment coefficient. The problems that in the prior art, a high-rotating-speed motor and a hydraulic pump are not matched in rotating speed, and mechanical disturbance is difficult to restrain are solved.

The invention relates to the technical field of driving control of symmetrical vacuum pressure control valves, in particular to a zero-point-free zero returning method of a double-position synchronous motor for a symmetrical vacuum pressure control valve, which is suitable for scenes needing high-precision pressure control, such as semiconductor manufacturing, vacuum coating, precision vacuum detection and the like. The problems that in the prior art, the vacuum sealing performance is damaged by depending on a special sensor, cost is high, abrasion of a sealing ring is aggravated due to zero point fixation, and double-shaft synchronization precision and load distribution are disjointed are solved. According to the method, the position where the sealing ring reaches the sealing pre-tightening force serves as a dynamic non-fixed zero point, an additional zero point sensor or a collision sensor or a horizontal sensor is not needed, the current-torque coupling characteristic of a motor is utilized, and full-process automatic control is achieved through a high-precision Hall current sensor and an incremental encoder. The method comprises the following specific steps: initializing motor parameters, establishing a T = K * I mapping relation, calibrating a current overload threshold value, calibrating a current detection module, synchronously starting and operating double motor shafts, identifying a collision state based on current detection, locking and verifying a zero returning position, and judging zero point uniqueness based on torque uniformity. The double-shaft zero returning repetition precision is high, zero point uniqueness judgment fits the actual working condition, uneven abrasion of the sealing ring can be reduced, the service life of the sealing ring and the maintenance period of the valve are prolonged, meanwhile, the equipment manufacturing cost and the maintenance difficulty are reduced, and the vacuum sealing stability and the pressure control precision of the symmetric vacuum pressure control valve are effectively improved.

A vehicle latch, including: a drive assembly, wherein the drive assembly includes a power release gear, a reset lever secured to one side of the power release gear and a gear lock lever located on an opposite side of the power release gear, the gear lock lever rotatably mounted to the power release gear and the reset lever; a switch link operably coupled to the gear lock lever; a clutch mechanism operably coupling the switch link to the reset lever; and a motor operably coupled to the drive assembly via a worm secured to a shaft of the motor, wherein rotation of the drive assembly by the worm performs one of a locking function and a power release of the vehicle latch.

The invention belongs to the technical field of coaxiality detection, and provides a motor shaft coaxiality detection device and method based on a contact displacement sensor. The detection device adopts a modular design, and is integrated with a shaft supporting and positioning system which can be magnetically attracted and locked in a sliding manner, a rotation driving system with magnetic force assistance, and a sensing measurement system with adjustable angle and height. During detection, a motor shaft to be detected is placed on the supporting bearing, and the measuring heads of the two contact type displacement sensors are in contact with the surfaces of different shaft sections of the motor shaft respectively; the driving system drives the shaft to rotate, and the sensor collects radial run-out data; and the data processing system adopts a two-channel difference algorithm to calculate the range of the radial deviation of the two measuring points in a circle of rotation, and the range is used as a coaxiality error. According to the invention, rapid, high-precision and low-cost detection of the coaxiality of the motor shaft is realized, the method is especially suitable for batch automatic application in a production field, and the method has the outstanding advantages of simple operation, strong adaptability and high efficiency.

The invention provides a grid-side current harmonic suppression method and device for a motor driving system without an electrolytic capacitor. The method comprises the following steps: determining first and second bus voltage harmonics based on bus voltage obtained by sampling and inverter switching frequency; correcting the bus voltage according to the first bus voltage harmonic wave and the second bus voltage harmonic wave so as to determine a reconstructed bus voltage; according to the second bus voltage harmonic, the reconstructed bus voltage, an inverter output three-phase duty ratio and a motor three-phase current, first and second network side current harmonic regulation and control voltages are determined based on a self-defined closed-loop controller; and adopting a motor alpha-axis correction voltage and a motor beta-axis correction voltage determined according to the first and second grid-side current harmonic regulation and control voltages to participate in motor SVPWM modulation to output the three-phase duty ratio of an inverter so as to suppress grid-side input current harmonics. According to the method and the device, factors such as motor operation conditions, bus voltage harmonic waves and digital control delay are comprehensively considered, the quality of grid-side input electric energy is improved, and disturbance to machine-side rotating speed and torque is reduced.

The present disclosure relates to a deflector for an electric machine, the electric machine comprising a stator, the stator comprising a stator body having an end face in the axial direction of the machine and at least one end winding (4) formed on the end face of the stator body, the fluid director comprises a first fluid director ring body (1), a second fluid director ring body (2) and an annular fluid director part (3) connected with the first fluid director ring body (1) and the second fluid director ring body (2), the fluid director is of a semi-closed structure and is used for at least partially surrounding an end winding (4), and the first fluid director ring body (1) is located on the radial outer side of the second fluid director ring body (2) and surrounds the second fluid director ring body (2). A plurality of flow guide holes (11) are distributed in the circumferential annular face of the first flow guide ring body (1), and at least one opening (31) is formed in the annular flow guide part (3). The disclosure also relates to an electric machine, an electric drive assembly system and a vehicle comprising such a deflector.

The invention belongs to the technical field of mixing equipment, and particularly relates to a non-intrusive homogenizer operation process abnormity monitoring method and system, and the method comprises the steps: calculating the mechanical angular acceleration according to the real-time rotating speed of a motor shaft end; on the basis of a pre-constructed inverse dynamic model, according to the motor orthogonal axis current, the motor shaft end real-time rotating speed and the mechanical angular acceleration, a rheological resistance characteristic index is calculated; processing the rheological resistance characteristic index by using a singular spectrum analysis algorithm, and extracting a trend line of the rheological resistance characteristic index through construction of a trajectory matrix, singular value decomposition and diagonal averaging operation; the information entropy of the first-order difference sequence of the trend line is calculated to serve as the mixing stability entropy, and the mixing end point of the operation process of the homogenizer is judged according to the convergence condition of the mixing stability entropy relative to the reference entropy, so that anomaly monitoring of the operation process of the non-intrusive homogenizer is achieved. According to the invention, abnormity monitoring and end point determination of the mixing process of the homogenizer are realized.

The invention relates to the technical field of motor shaft turning, and discloses a motor shaft production turning device which comprises a machine base, a machine shell is installed on the machine base, a turning assembly used for turning a motor shaft is arranged on the machine base, and a guide rail block is fixedly connected to the top inner wall of the machine shell. The control assembly drives the two moving arms to be matched with the conical clamping heads to be clamped in prefabricated holes in the two ends of the motor shaft, centering clamping is achieved, then the stabilizing devices on the two moving arms can achieve multi-position self-adaptive clamping and supporting of different positions of the motor shaft, center clamping is achieved when the two ends are turned, and two-end clamping is achieved when the center is turned. A machining area avoids a supporting point, rotation of the motor shaft and radial run-out in the turning process can be effectively limited, it is guaranteed that the motor shaft is machined in place at a time in the turning process, time loss and errors caused by multiple times of clamping are reduced, the machining efficiency is remarkably improved, and meanwhile the machining cost is reduced. And the dimensional precision and the coaxiality consistency of all the machining parts of the motor shaft are guaranteed.

The invention discloses a motor bearing fault diagnosis method and system based on multi-modal fusion and few-sample learning, and relates to the field of motor bearing fault diagnosis, and the method comprises the steps: constructing a multi-modal time sequence signal sample set and a motor bearing fault diagnosis model based on multi-modal fusion and few-sample learning; performing Riemannian metric-based quality weighted element training on the motor bearing fault diagnosis model by using the multi-modal time sequence signal sample set; performing rapid fine adjustment on the trained motor bearing fault diagnosis model by using a small number of marked multi-mode time sequence signals of the target motor bearing; and performing fault diagnosis on the to-be-detected multi-mode time sequence signal of the target motor bearing by using the finely-adjusted motor bearing fault diagnosis model. The method can effectively improve the diagnosis accuracy and robustness.

The utility model provides a rain sewage pipe network clean-up shunting device which comprises a shunting box and a box cover, an adjusting plate is movably installed in the shunting box through a driving mechanism, first rubber strips are symmetrically and fixedly arranged at the two ends of the adjusting plate, and a first filter screen and a second filter screen are symmetrically and fixedly arranged on one side of the adjusting plate. Impurities in front-section rainwater and sewage can be filtered through a first filter screen and a second filter screen, when the amount of rainwater is large, the water level in the device is detected through a water level gauge, and an adjusting plate is rotationally adjusted through a servo motor and a shaft rod, so that the adjusting plate can seal the top of a blow-off pipe, and the top of the blow-off pipe is prevented from being blocked. Middle-section rainwater can be conveniently discharged into a river channel through the adjusting plate and the rainwater pipe, and rainwater and sewage can be separated; and the sundries can be moved to the upper end of the device through an adjusting plate, a first filter screen and a second filter screen, so that the sundries can be conveniently cleaned by opening the box cover, and the practicability is high.

The invention discloses an ultra-high-speed motor bearing anti-deformation crown-shaped retainer and a manufacturing method, and belongs to the technical field of motor bearings. The super-high-speed motor bearing anti-deformation crown-shaped retainer is formed by printing functionally graded materials, the functionally graded materials comprise a hard-phase material and a soft-phase material, the hard-phase material is glass fibers, and the soft-phase material is nylon 66; the equivalent elastic modulus of the functionally graded material is continuously and gradually changed in the axial direction from the bottom of the pocket to the tail end of the lock claw, so that the elastic modulus of the bottom area of the pocket is higher than that of the tail end area of the lock claw, and elliptical deformation of the pocket and centrifugal deformation of the lock claw are cooperatively restrained. And active reconstruction of a rigidity field of the crown-shaped retainer is achieved, specifically, a tough phase is constructed in a locking claw area to absorb collision energy, a strengthening phase is formed in a pocket area to weaken stress concentration, a rigidity gradient is established at a connecting part to restrain the umbrella-shaped effect, and the crown-shaped retainer with the high toughness-gradient-high strength characteristics and the design method of the crown-shaped retainer are provided.

The invention discloses a universal limited-angle motor working angle measuring device which comprises a base, a sliding table and a mounting table are arranged on the base, a positioning key and a positioning block are arranged on the mounting table, a flat plate is horizontally connected to the sliding table, an annular angle scale is mounted on the flat plate, and after a motor is positioned on the mounting table through the positioning key, the motor is positioned on the mounting table through the positioning key. A motor shaft of the motor is coaxial with the through hole and the annular angle scale; the part of the motor shaft extending out of the annular angle scale is provided with a pointer. The measuring device can ensure that the measuring datum is uniform, the testing efficiency is improved, and meanwhile the problem that an existing clinometer is difficult to deploy is solved. By arranging the movable positioning key and the positioning block, the motor to be measured and the annular angle scale can be coaxially assembled, so that the accuracy of a measured value is improved. Furthermore, the movable positioning key and the positioning block are matched with the lifting of the sliding table, so that the device can be suitable for the assembly and measurement of various motor specifications, and the applicability of the measurement device is improved.

This invention provides a hybrid power drive device and a vehicle having the same. The hybrid power drive device includes an engine, a first motor, a second motor, and a compound planetary gear set. The output end of the engine is driven to the motor shaft of the first motor. The motor shaft of the second motor drives the wheels to rotate. A first sun gear meshes with a first planetary gear, and both the second sun gear and the first planetary gear mesh with a second planetary gear. The second planetary gear meshes with a ring gear, and the ring gear is driven to the wheels. A brake controls the operating state of the second sun gear, a first clutch controls the engagement or disengagement of the engine output end with the first sun gear, and a second clutch controls the engagement or disengagement of the engine output end with the planetary carrier. The technical solution provided in this application solves the problem in related technologies where hybrid power drive devices struggle to simultaneously achieve efficiency and compactness across multiple operating modes, as well as flexible drive switching.

The invention relates to the technical field of motor shaft grinding, in particular to a multi-specification applicable motor shaft grinding device for motor production, which comprises a worktable and a control cabinet, a clamping mechanism and a driving mechanism are arranged on the upper side of the worktable, and a fine grinding assembly and a coarse grinding assembly are arranged on the side surface of the driving mechanism; the clamping mechanism comprises a first linear module, a first tip, a first electric push rod and a supporting block are arranged on the upper side of the first linear module, and a matching shaft, a first motor and a second tip are arranged on the side face of the first tip. By arranging the clamping mechanism, the driving mechanism, the accurate grinding assembly and the rough grinding assembly, the full-process machining from rough grinding, accurate grinding to grooving and deburring on the shaft is completed on single equipment, automation, flexibility and high precision of machining of motor shafts of multiple specifications are achieved, the production efficiency and the product consistency are remarkably improved, synchronous control operation is centralized and intelligent, and the production efficiency is improved. And automatic continuous processing can be realized.

The invention belongs to the field of mechanical precision detection, and relates to a ram five-shaft head spigot and direct drive motor spigot assembly coaxiality detection method. According to the technical scheme, the method comprises the following steps that (1) a ram is fixed to a ram fixing tool, a direct drive motor is installed in the ram, and a direct drive motor spigot in the ram is used for positioning; 2) fixedly connecting the detection rod with a motor shaft of the direct drive motor by using a coupler; 3) installing a wheel meter tool on the motor shaft, and detecting the coaxiality of the swing head installation hole and the motor shaft and the run-out precision of the swing head installation end face through the wheel meter tool; (4) a magnetic gauge stand is attracted to a five-axis head spigot of the ram, a dial indicator is installed on the magnetic gauge stand, and a measuring head of the dial indicator is made to be perpendicular to the outer circle surface of the detection rod; and 5) slowly rotating the detection rod, and detecting the coaxiality of a plurality of positions of the detection rod through the dial indicator. According to the invention, the coaxiality of the spigot can be rapidly and accurately detected in the equipment assembling process, the detection efficiency and precision are improved, and the dependence on the technical level of detection personnel is reduced.

The invention discloses a traction motor bearing fault online detection method and system, a medium and equipment. The method comprises the steps that S1, a working condition signal and a leakage current signal of a traction motor under a stable working condition are acquired; s2, performing adaptive decomposition on the leakage current signal, and capturing a sensitive mode corresponding to the state change of the bearing, namely a corresponding high-frequency mode component of the traction motor bearing in the leakage current signal; s3, extracting a peak-to-peak value Apeak of a main wave crest in the high-frequency modal component time domain waveform, a fluctuation period Ta, a resonant frequency fc of a high-frequency modal component frequency spectrum and energy Ef corresponding to the resonant frequency fc; and S4, inputting the Apeak, Ta, fc, Ef and working condition signals into a pre-constructed and trained bearing fault multi-feature fusion diagnosis model, and outputting a motor bearing diagnosis result. The method has the advantages that the fault features of the motor bearing can be effectively and sensitively obtained, and accurate traction motor bearing fault early warning is achieved.

The invention relates to the technical field of motor bearing production detection, in particular to motor bearing automatic visual inspection equipment which comprises an auxiliary treatment box and a mounting frame, the mounting frame is fixedly arranged at the top of the auxiliary treatment box, a workpiece inlet is formed in the left side of the mounting frame, and a workpiece delivery frame is fixedly arranged on the right side of the mounting frame. Through the multi-dimensional self-adaptive positioning and clamping structure, the clamping distance and the limiting force can be automatically adjusted according to the sizes of bearings of different specifications, it is ensured that the bearings are stable and free of deviation in the detection process in combination with auxiliary limiting of the upper end face and the lower end face, meanwhile, multi-angle rotation and overturning of the bearings are achieved in cooperation with the rotation driving structure, and the detection precision is improved. The limitation of single angle of traditional detection equipment is broken through, all-directional visual coverage of key parts such as inner and outer rings, a raceway and an end face of the bearing is realized, and the comprehensiveness of detection is improved.

A cutting tool includes a trunk assembly, an electric motor, a second housing for accommodating the electric motor, an output shaft for mounting a cutting piece, a transmission assembly connected between a motor shaft and the output shaft, and a third housing for accommodating at least part of the transmission assembly. In a process of the cutting piece cutting a workpiece, the third housing has a first contact surface and a second contact surface with the workpiece; when the first contact surface or the second contact surface is in contact with the workpiece, the cutting piece has a maximum cutting depth; and the angle between the first contact surface and the second contact surface is greater than or equal to 50° and less than or equal to 85°, and the maximum cutting depth is greater than or equal to 20 mm.

The invention discloses a computer case intelligent welding device based on multi-axis linkage, comprising: a machine table, the upper end of which is provided with an X-axis guide rail, the X-axis guide rail is provided with a Y-axis guide rail, the Y-axis guide rail is provided with a Z-axis guide rail, the Z-axis guide rail is provided with a C-axis motor, the C-axis motor is provided with a B-axis motor, and the B-axis motor is provided with a laser welding head located on a vertical plane; the supporting mechanism is arranged on the inner side of the X-axis guide rail; the clamping mechanism is arranged on the peripheral side of the supporting mechanism; the conveying belts are arranged in the direction of the X-axis guide rail and arranged on the two sides of the supporting mechanism.

The invention discloses a grounding device for a motor shaft, and belongs to the technical field of grounding devices, the grounding device comprises a fixing ring and conductive fibers, the fixing ring comprises a pressing plate, a bottom plate and an annular shell, the pressing plate and the bottom plate are both arranged in the annular shell, the bottom plate is located on the side, away from the annular shell, of the pressing plate, and the conductive fibers are arranged in the annular shell. And the conductive fibers are arranged between the pressing plate and the bottom plate. According to the scheme, the conductive fibers can conveniently form a uniform and stable contact ring belt, and the grounding effect of the grounding device is ensured.

A steering drive for a steering axle of a steerable vehicle includes an electric motor with a motor shaft. A steering lever is rotatable about a pivot axis that is parallel to the electric motor. First and second planetary stages each have a sun gear, planet gears, and a planet carrier. The steering drive is configured such that a force flow runs from the first sun gear via the first planet gears to the first planet carrier. The force flow furthermore runs via the second sun gear and via the second planet gears to the second planet carrier, and furthermore runs to the steering lever. The steering drive has a spur gear stage and is configured such that a force flow from the motor shaft to the first sun gear runs via the spur gear stage. Also disclosed is a steering axle and an industrial truck.

The utility model belongs to the technical field of hardware fitting machining, and discloses a hardware fitting portable vertical grinding device which comprises a machine shell, a grinding assembly is installed at the position of an opening in the top of the machine shell, a cleaning assembly is correspondingly arranged below the grinding assembly, the cleaning assembly is installed on the machine shell, and the grinding assembly is connected with the machine shell. The cleaning assembly comprises two symmetrically-arranged roller brushes, one ends of the roller brushes are connected with the inner wall of the machine shell through bearings, the other ends of the roller brushes penetrate through the machine shell to be fixedly connected with chain wheels, the chain wheels are connected through a chain, and one chain wheel is connected with a first motor through a motor shaft. And extension plates are symmetrically arranged on the two sides of the opening position of the top end of the machine shell, the extension plates are connected with the machine shell through hinges, chippings adhering to the grinding belt are removed, the situation that the chippings adhere to the grinding belt to interfere with grinding of the hardware fittings is avoided, the grinding effect of the hardware fittings is better improved, and grinding work of the hardware fittings is facilitated.

Disclosed are a non-contact rotary transformer and a motor comprising same. A non-contact rotary transformer according to the present invention is a device for connecting a rotor of a motor with an external power source in a non-contact manner, and is characterized by comprising: a core part disposed inside a hollow motor shaft in a coaxial structure with the motor shaft; a primary coil part installed on the outer circumferential surface of the core part; a secondary coil part which is installed on an inner main surface of the motor shaft and surrounds the primary coil part at a predetermined interval (air gap) therefrom; and a rectifier circuit part which is coupled to the motor shaft and rotates in synchronization therewith, and which is electrically connected to the secondary coil part.

An electric brake device includes an actuator section. The actuator section applies a braking force to a wheel according to rotation of an electric motor transmitted by a transmission mechanism. The electric brake device includes a circuit section that controls the actuator section. The electric brake device includes a rotation angle sensor configured by a detected section attached to a motor shaft member and a detecting section provided to the circuit section. The electric brake device includes a partition wall that defines a first space in which the transmission mechanism is arranged and a second space in which the circuit section is arranged. The partition wall is provided with a through-hole. The detected section is arranged in the through-hole.

The utility model discloses a gas booster pump driven by a lead screw motor, which relates to the technical field of gas compression and comprises a booster pump body formed by connecting a gas pressure cylinder part and a lead screw motor driving part. The gas pressure cylinder part comprises a compression cavity which is provided with a gas inlet, a gas outlet and a one-way valve, and a piston is arranged in the cavity; and a screw rod motor shaft capable of stretching and retracting in a reciprocating manner is arranged in the screw rod motor driving part and is fixedly or floatingly connected with the piston. A stator and a rotor nut are coaxially sleeved in the lead screw motor shell, and a lead screw motor shaft is provided with an anti-rotation structure. During working, the rotor nut rotates to drive the lead screw motor shaft to move to push the piston to compress gas. The air compressor has the beneficial effects that the screw rod motor is used for driving the booster pump to work, the noise is low during air boosting work, and the efficient and accurate air compression requirement is met.

A power tool for cleaning includes: a cleaning device including a working accessory for cleaning; a driving device, where the driving device includes a motor for driving the working accessory to rotate, and the motor includes a motor shaft rotating about a first straight line; an operation device for a user to operate so as to control the power tool; a power supply device for supplying power to the driving device; and a connecting device for connecting the driving device to the operation device. The operation device includes a main handle for the user to hold. The power supply device is disposed between the main handle and the driving device. The fatigue degree of the user is reduced when the user operates the power tool.

An electric drive axle of a new energy automobile comprises a drive motor, a speed reducer, a controller and a differential mechanism, the drive motor, the speed reducer, the controller and the differential mechanism are installed in a shared shell, a drive motor installation cavity is formed in the middle of the shared shell, a speed reducer installation cavity is formed in one side of the drive motor, and a controller installation cavity is formed in the other side of the drive motor. A differential mounting cavity is formed in the front side of the speed reducer, axle tube connecting parts are arranged on the left side and the right side of the differential mounting cavity respectively, the two ends of a motor shaft of the driving motor are supported on the shared shell through bearings respectively, and one end of the motor shaft extends into the speed reducer mounting cavity to form a cantilever end; the cantilever end is provided with a driving bevel gear which is meshed with a driven bevel gear on the intermediate shaft of the speed reducer.

The invention belongs to the technical field of turning, and particularly relates to a turning device for motor shaft machining, which comprises a lathe body and a slide rail arranged on the lathe body, a splash-proof door is slidably arranged on the lathe body, a three-jaw chuck is rotatably arranged on the lathe body, a tool apron and a moving part are slidably arranged on the slide rail, and the moving part comprises a containing seat. An avoiding groove and a limiting groove are formed in the accommodating seat; according to the turning device for machining the motor shaft, when a solid motor shaft blank is machined, a conical structure composed of the sharp claws can be directly utilized to abut against a center hole of the motor shaft blank to achieve positioning, and when a hollow motor shaft blank is machined, inner supporting and fixing can be achieved only by driving the sharp claws to expand in the radial direction through an adjusting mechanism; the embedded seat of the limiting mechanism can be matched with the limiting groove of the containing seat to lock the position of the mounting column, when workpieces of the same model are machined, the second handle is pulled to enable the sharp claw to be separated from the workpieces after locking of the mounting column is removed, rapid unloading of the workpieces is achieved, and when a new workpiece is clamped again, only the mounting column needs to be reset, and the original positioning precision can be restored.

The utility model discloses a joint module and a robot. The joint module comprises a speed reducer, a motor assembly, an encoder assembly and a driving plate which are sequentially distributed in the axial direction of the joint module. The motor assembly comprises a motor rotor fixed to the periphery of the motor shaft and a motor stator fixed to the inner ring of the motor shell. An input shaft of the speed reducer is fixedly connected with the motor shaft, an output shaft of the speed reducer penetrates through an axial center hole of the motor shaft and is connected with an output end encoder rotor, and the motor shaft is connected with an input end encoder rotor; the encoder assembly comprises an encoder support, an input end encoder rotor, an encoder stator and an output end encoder rotor which are sequentially distributed in the axial direction of the motor shaft. The encoder support is installed at one end of the motor shell, and the encoder stator is fixed to the end, away from the motor shell, of the encoder support. The two ends of the encoder stator are respectively provided with an induction coil. According to the utility model, the position distribution of the encoder stator and the encoder rotor is optimized, so that the encoder assembly outputs high-precision position signals.