104results about How to "Precisely control the rotation angle" patented technology

The invention belongs to the technical field of industrial automation, and discloses an actuator calibration equipment mechanism which comprises a working panel, a main support is fixedly installed at the right end of the top of the working panel, a calibration assembly is movably installed on the front face of the upper portion of the main support, and a downward pressing air cylinder is fixedly installed at the top of the main support. The output end of the downward pressing air cylinder is connected with a calibration assembly, and a marking assembly is installed at the bottom end of the calibration assembly. Compared with a traditional manual calibration mode, the automatic actuator calibration system based on angle calibration has the advantages that the calibration efficiency is remarkably improved, the calibration accuracy is enhanced, the production flexibility and adaptability are improved, the calibration efficiency, accuracy, flexibility and safety are improved, and the automatic actuator calibration system based on angle calibration is suitable for popularization and application. And quality control and management are optimized, remarkable beneficial effects are brought to industrial automatic production, and the method is an important technical means for promoting industrial automatic upgrading.

The acupuncture and moxibustion auxiliary operation device comprises an outer shell, an inner shell and a controller, a fixing assembly is installed on the outer side wall of the outer shell, a rotating assembly is installed on the inner top wall of the outer shell, an opening is formed in one end of the inner shell, a first pressure sensor is installed at the opening, and a connecting rod is fixedly connected to the inner top wall of the inner shell; the connecting rod is provided with a plurality of leaking holes and connected with a power part, a force storage shell is installed outside the power part, a strain gauge is embedded in the side wall of the force storage shell, the bottom of the force storage shell is communicated with a needle pushing assembly, the needle pushing assembly comprises a shell, a needle clamping device is in sliding fit with one end of the shell, a pushing plate is in sliding fit with the interior of the shell, and the space between the pushing plate and the needle clamping device is filled with liquid. And a liquid level sensor is embedded in the shell. The problems that in the traditional acupuncture treatment process, the dependence on the skills of doctors is high, operation is tedious, and the control over the needle inserting depth and the needle twisting angle is inaccurate are solved.

The pair of novel biopsy hemostatic forceps comprises a forceps head assembly, a rotating seat and a sliding ring assembly, the forceps head assembly comprises a first forceps head, a second forceps head and a forceps head frame, the first forceps head is hinged to the forceps head frame, the second forceps head is hinged to the first forceps head, the rotating seat comprises a fixed seat and a clamping ring, and the sliding ring assembly comprises a push-pull part and an electrode part. One end of the electrode is connected with an external power supply. The bipolar biopsy haemostatic forceps are formed through the first forceps head, the second forceps head and the slip ring assembly, a negative plate is prevented from being pasted on a patient during diagnosis and treatment, and compared with single-stage biopsy haemostatic forceps, the bipolar biopsy haemostatic forceps are safer, so that the surgical risk is reduced, and when the rotation angle of the forceps head assembly needs to be adjusted, the rotation angle of the forceps head assembly is adjusted by rotating the rotating seat; the rotating seat rotates to drive the forceps head assembly to rotate, so that the rotating angle and the opening and closing direction of the jaws of the first forceps head and the second forceps head are accurately controlled, the operation difficulty of a doctor is reduced, and the operation risk is further reduced.

The utility model discloses a mechanism utilizing a stepping motor to accurately adjust a die lip gap, which comprises a control mechanism, a mounting seat, a bolt adjusting rod, an indexing dial, a stepping motor and a transmission mechanism, the bolt adjusting rod, the indexing dial, the stepping motor and the transmission mechanism are arranged on the mounting seat, the upper end of the bolt adjusting rod is fixed on the indexing dial, and the lower end of the bolt adjusting rod is connected with a die head gap bolt. The control mechanism controls the rotating speed and the rotating angle of the stepping motor, the stepping motor drives the bolt adjusting rod to rotate through the transmission mechanism, and the indexing dial is provided with a calibration adjusting part. According to the utility model, the stepping motor is connected with the worm and gear speed reducer, so that the screwing torque of the bolt can be controlled, the stepping motor can accurately control the number of rotation turns and the rotation angle, and after the reduction ratio of the worm and gear speed reducer, the rotation angle of the indexing dial at each time can be more accurately controlled.

The invention provides a motor and application, and the motor comprises a first housing which is provided with a main control circuit board; the second shell is positioned in the first shell and is provided with a driving circuit board and a motor body; wherein the driving circuit board is electrically connected with the main control circuit board and the motor body, the main control circuit board is used for outputting a control signal to the driving circuit board, and the driving circuit board is used for outputting a driving signal to the motor body based on the received control signal; wherein the driving circuit board is located at the end of the motor body, the driving circuit board is provided with two opposite surfaces, one surface is provided with a driving circuit, the other surface is provided with a sensing element, and the driving circuit is electrically connected with a main control circuit of the main control circuit board and the motor body. The sensing element is used for detecting the position of the motor body and outputting a detection signal to the driving circuit. The stability and reliability of the motor are improved.

The invention belongs to the technical field of welding machining, and particularly discloses an auxiliary welding device for automobile part production and machining, which comprises supporting plates, a sliding rail is horizontally and fixedly arranged between the supporting plates, two sliding tables are symmetrically clamped and slidably arranged on the sliding rail, and a positive and negative tooth screw rod is rotatably arranged between the supporting plates. Two sections of symmetrically arranged threads on the positive and negative tooth screw rod are in threaded connection with the two sliding tables respectively, a mounting rod is fixedly arranged on the upper side of each sliding table, a radial clamping coaxial positioning mechanism is fixedly arranged on each mounting rod, and a self-adaptive synchronous rotating mechanism is arranged on one side of each radial clamping coaxial positioning mechanism; a rotation driving mechanism is arranged between the self-adaptive synchronous rotation mechanism and the sliding table, and a positioning driving mechanism is arranged on the radial clamping coaxial positioning mechanism. Coaxial positioning and rotation adjustment at any angle of the exhaust pipe to be welded can be achieved, so that accurate butt joint of pipe openings is rapidly achieved, the scheme of driving the exhaust pipe to rotate is adopted, and the power load of a driving motor is remarkably reduced while continuous welding is guaranteed.

The intelligent flexible clamping system for creep age forming of the large thin-walled workpiece comprises a base, a base table is arranged at the upper end of the base, and extending holes are distributed in the base table in a matrix mode; the lifting driving mechanism is mounted on the base, and the upper end is provided with a lifting movable end aligned with the extending hole; the flexible clamping assembly comprises a base frame, a rotating table, a first rotating driving mechanism, a pitching table, a second rotating driving mechanism and a supporting module. The rotating table is rotatably and movably installed on the base frame along the vertical axis, the first rotating driving mechanism is installed on the base frame and connected with the rotating table so as to drive the rotating table to rotate and move along the vertical axis relative to the base frame, the pitching table is rotatably and movably installed on the rotating table along the horizontal axis, and the second rotating driving mechanism is installed on the rotating table and connected with the pitching table; the supporting module is detachably installed at the upper end of the pitching table. According to the method, the flexibility, the accuracy and the efficiency of creep age forming of the large thin-wall part are remarkably improved. And the requirements of multiple varieties, small batch and customization can be met.

The invention relates to a printing mechanism, a printing system and imaging equipment. The printing mechanism can comprise a printing module and a printing driving module. The printing module comprises a rotating frame, and an ink jet structure is arranged on the rotating frame; the printing driving module comprises a pivot and a printing driving device; the printing driving device is used for driving the rotating frame to rotate and swing around the pivot; and the printing module is used for performing ink-jet printing when the rotating frame rotates and swings. According to the technical scheme provided by the invention, the structure of the printing mechanism can become compact, the size of the printing mechanism is reduced, and meanwhile, the part complexity of the printing mechanism is avoided; and the rotating frame can be accurately controlled to swing around the pivot in a reciprocating mode, printing flexibility is improved, the printing position can be adjusted according to printing requirements, and printing efficiency is improved.

The invention discloses a double-helix digital oscillating cylinder applied to a deep sea manipulator, and belongs to the technical field of hydraulic cylinders. After the piston rod, the piston and the guide sleeve are sleeved with sealing pieces, the piston rod is installed in the cylinder body and then matched with the piston and the guide sleeve, the piston rod, the guide sleeve and the cylinder body are connected together through a threaded gland, and after hydraulic oil is input into the two cavities respectively, the guide sleeve and the piston rod can synchronously swing relative to the cylinder body to output the rotation angle and the rotation torque in a double-end mode. Or the guide sleeve and the piston rod are fixed to swing the cylinder body to output the rotation angle and the rotation torque. A built-in angle sensor is used for collecting angle signals, and the rotation angle of the swing cylinder is accurately controlled; an external pressure sensor is used for collecting pressure signals, and the purpose of accurately outputting torque is achieved by accurately controlling the pressure difference of the two cavities of the swing cylinder. The invention has the characteristics of good deep sea environment adaptability, high control precision, low processing difficulty, small damage to the sealing element, high production efficiency, long service life and the like.

The utility model relates to the technical field of welding quality detection, in particular to an integrated rapid welding detection device for pore analysis and automatic interpretation, which comprises a detection table, a controller, a detection mechanism and an adjusting disc, an adjusting plate is arranged between the adjusting disc and the detection table, a rotating mechanism is arranged between the adjusting plate and the adjusting disc, and the rotating mechanism is connected with the detection table. A displacement mechanism is arranged between the adjusting plate and the detection table, a fastening plate is arranged on the adjusting disc, a T-shaped groove is formed in one side of the fastening plate, an iron plate is arranged on the T-shaped groove, a T-shaped block is arranged on the T-shaped groove, a clamping assembly is arranged at one end of the T-shaped block, an electromagnet is embedded into the other end of the T-shaped block, and a clamping assembly is arranged on the other end of the clamping assembly. According to the structure, the adjusting disc can rotate by 360 degrees in the detection process through the rotating mechanism, it is ensured that each angle of the welding position can be comprehensively detected, and detection blind areas possibly existing in a traditional method are avoided.

The utility model discloses a rotary electric heating towel rack which comprises an installation base, a rotating frame and a towel rod detachably connected to the rotating frame, the opposite sides of the rotating frame and the installation base are matched in a concave-convex mode and provided with a damping unit, and the damping unit comprises a fastener and two damping gaskets arranged on the fastener in a sleeved mode. A connecting hole penetrates through the mounting seat, a rotating ring is arranged on the rotating frame, the rod part of the fastener penetrates through the rotating ring and is fixedly connected with the inner wall of the connecting hole, the rotating ring is rotatably and movably arranged between the two damping gaskets, and the opposite sides of the two damping gaskets abut against the rotating ring. According to the rotating electric heating towel rack, the resistance borne by the rotating frame is uniform when the rotating frame rotates relative to the mounting base, so that it is guaranteed that the towel rod rotates more smoothly and stably, a user can conveniently rotate the towel rod to a proper angle position, and user experience is improved.

The application belongs to the field of coating detection, and specifically discloses a detection equipment for coating production, which comprises a sampling mechanism, wherein the sampling mechanism is connected with a base, a stirring tank is installed at the upper end of the base, the stirring tank is communicated with the sampling mechanism, the sampling mechanism comprises a stepping motor, the stepping motor is connected with a glass frame, a spectrometer is installed at one end of the glass frame, the output end of the stepping motor is in transmission connection with a lead screw, the lead screw is in threaded connection with a sliding rod, the sliding rod is in sliding connection with the glass frame at both ends, the sliding rod is connected with three sample cups which are arranged at equal intervals at the top of the sliding rod, and the sliding rod is in contact with a quantitative control mechanism. The stepping motor is used for driving the sliding rod to translate and trigger the quantitative control mechanism, the multi-angle test pieces arranged in an interlaced mode are combined with the spectrometer, the full-process automatic detection from layered sampling, sedimentation observation to coating optical performance analysis is realized, and the problems of sample cross contamination and low detection efficiency in the prior art are solved.

The utility model discloses an auxiliary positioning device for a workpiece bending machine, which comprises a processing platform used for placing a workpiece to be processed and provided with a semicircular scale groove; the positioning rod is rotationally arranged on the top face of the machining platform, the rotating center of the positioning rod coincides with the circle center of the semicircular scale groove, and the end, close to the bending die, of the positioning rod is further provided with a beacon used for indicating the angle. The transmission part is arranged in the machining platform, one end of the transmission part is connected with the positioning rod, and the transmission part is used for driving the positioning rod to rotate by a corresponding angle; the positioning rod is controlled to rotate through the transmission part, the rotating angle of the positioning rod can be known in real time through matching between the positioning rod and the scale groove, and when one side of the workpiece abuts against the positioning rod, the rotating angle of the workpiece is consistent with that of the positioning rod, so that the rotating angle of the positioning rod can be accurately controlled, and production efficiency is greatly improved even in batch production. And machining errors can also be reduced.

The utility model relates to the technical field of sheet metal working, in particular to sheet metal working turnover equipment which comprises a workbench, a first fixing frame is fixedly installed at one end of the upper end face of the workbench, and a second fixing frame is installed at the end, away from the first fixing frame, of the upper end face of the workbench through a sliding mechanism. The second fixing frame is connected with a movement control mechanism, fixing plates are vertically and fixedly installed on the upper end face of the first fixing frame and the upper end face of the second fixing frame respectively, round plates are vertically arranged on the opposite faces of the two fixing plates respectively, and the round plates are connected with fixing mechanisms. A connecting shaft rotationally penetrating through the fixing plate is transversely and fixedly installed on the outer side wall of the circular plate, a gear is fixedly installed at the end of the connecting shaft, and first electric push rods are vertically and fixedly installed on the inner top face of the first fixing frame and the inner top face of the second fixing frame respectively.

The application discloses an axial flux motor and a stepping control method thereof, and adopts a stepping control mode to realize accurate control of the motor. By acquiring operation parameters of the axial flux motor, initial angle and stepping angle of the axial flux motor are determined, and then the energization period of the axial flux motor is determined, a stator excitation waveform image is drawn, three-phase current for controlling the axial flux motor is generated, and the PWL function is used to realize stepping rotation of the axial flux motor. The technical scheme has the advantages of high precision, the rotation angle and speed of the axial flux motor are accurately controlled by controlling the number and frequency of current pulses, high-precision position positioning and motion control are realized, and the axial flux motor is suitable for application occasions such as communication and data transmission gimbals as a driving motor.

The utility model provides a torsion spring forced twisting device for an automobile seat, which belongs to the technical field of automobile accessory production equipment and comprises a machine table, a mounting seat for placing a spring is arranged in the machine table, a driving structure is arranged at the bottom of the machine table, and an output end of the driving structure is fixedly connected with the mounting seat to drive the mounting seat to rotate. And a first clamping position is arranged on the mounting seat. An auxiliary locking structure is further arranged on the machine table, and a second clamping position is arranged on the auxiliary locking structure. The spring is arranged in an annular mode and provided with an inner coiling end and an outer extending end, the inner coiling end is connected with the first clamping position in a clamped mode, and the outer extending end is connected with the second clamping position in a clamped mode. A torque sensor is arranged below the machine table, one end of the torque sensor is connected with the output end of the driving structure, and the other opposite end of the torque sensor is connected with a spring on the installation base. The device can accurately monitor the torque in the strong torsion process of the torsion spring through the torque sensor, so that the strong torsion effect of the torsion spring is improved, and the quality of the torsion spring is ensured.

The utility model provides a brushless direct current motor for an electric toothbrush, and relates to the technical field of electric toothbrushes, the brushless direct current motor comprises a stator iron core, an end cover and a rotor position feedback assembly, the rotor position feedback assembly comprises an induction magnet and a hall plate, and the stator iron core is internally provided with a rotor iron core; a vibration shaft is arranged in the rotor core; the outer part of the stator core is connected with a shell in a sleeving manner; one end of the shell is connected with a mounting plate in an assembling manner; one end of the machine shell is connected with a plate support in an assembled mode, one end of the vibration shaft is connected with a magnet support in a sleeved mode, a sensing assembly is arranged in the plate support, an annular groove is machined in the inner wall of the plate support, and two magnetic Hall components are arranged on one side of the Hall plate. The technical key points are as follows: the position of a motor rotor is detected in real time through an induction magnet and a hall plate at the tail end of a vibration shaft, and FOC logic control is performed, so that the rotation angle and direction of the brushless motor are accurately controlled, and the tooth brushing action of a human body can be simulated in combination with actual working conditions.

This utility model discloses a multi-station synchronous clamping device for CNC machining, including a base. A pusher roller is fixedly connected to the top of the base. A drive motor is installed inside the base. The output shaft of the drive motor is fixedly connected to a threaded rod via a coupling. A limit rail is threadedly connected to the outer wall of the threaded rod. A base is slidably mounted on the top of the limit rail. A clamping assembly is mounted on the top of the base. An angle adjustment assembly is mounted on the top of the clamping assembly. This utility model provides a multi-station synchronous clamping device for CNC machining. By adjusting the steering shaft in conjunction with the pointer on the bushing and the angle scale line on the steering shaft, the rotation angle of the steering clamping block can be precisely controlled to meet the machining requirements of different workpiece angles. It eliminates the need for re-disassembly and clamping, making operation convenient. After adjustment, the adjusting steering shaft can be fixed by locking bolts to ensure the stability of the angle during machining.

This utility model relates to the field of water spraying devices, and more particularly to a high-pressure fine water mist spraying device, including a water tank; it also includes a cleaning seat and a nozzle. A filter screen is fixedly connected inside the water tank, and a cleaning seat is provided between the water tank and the filter screen. A water pump is fixedly connected to the upper end of the inner wall of the water tank and inside the filter screen. A support base and a controller are fixedly connected to the upper end of the water tank, and an internal toothed ring is rotatably connected to the inner wall of the support base. Through the use of the cleaning seat, external water is filtered through the filter screen, effectively intercepting impurities in the liquid, preventing nozzle clogging, and improving atomization efficiency. The water pump pumps the filtered water in the water tank to the distribution pipe, and the water is sprayed out by the nozzle for water spraying. After a period of use, the cleaning seat moves up and down to thoroughly remove the sediment on the outer wall of the filter screen and the inner wall of the water tank. Regular cleaning is performed, which has a high degree of automation, improves the cleaning effect and efficiency, reduces the maintenance frequency, and extends the service life of the nozzle.

The utility model relates to the technical field of mold fixing, and discloses a convenient fixing device based on mold manufacturing, which comprises a fixed seat, a movable plate is slidably connected in the fixed seat, a mounting plate is fixedly connected to the bottom of the fixed seat, and a hydraulic cylinder is fixedly connected to the right part of the mounting plate. A fixed block is fixedly connected to the output end of the hydraulic cylinder, a movable plate is fixedly connected to the upper portion of the fixed block, a motor frame is fixedly connected to the bottom of the fixed block, a second motor is fixedly connected to the interior of the motor frame, a rotating shaft is fixedly connected to the output end of the second motor, and a rotating table is fixedly connected to the upper portion of the rotating shaft; the bottom of each rotary table is fixedly connected with a limiting assembly. According to the utility model, the die can be effectively driven to rotate, the position and the rotation angle of the die can be accurately controlled, the die can be quickly pressed and fixed, and the stability of the die in the machining process can be ensured.

The invention relates to the technical field of synchronous motors, and discloses an efficient busbar connection permanent magnet synchronous motor which comprises a motor stator, a busbar and a connection module, the section of the motor stator is in a circular ring shape, the motor stator is arranged in the motor, the inner side of the motor stator is used for placing a motor rotor, and a stator winding is arranged in the motor stator and is a winding coil; two coils with different diameters are arranged in the stator winding, the two coils are uniformly arrayed along the circumference of the motor stator, the motor can generate different rated powers to drive the rotor to move under the condition that the coils with different diameters work independently, connecting end pins are arrayed on the busbar, and the connecting end pins are connected with the stator winding. The ends of different stator windings are connected with different connecting end pins, the other ends of the connecting end pins are connected with a connecting module, the connecting module is provided with a power supply interface connected with a power supply end, and the connecting module can control a power supply to flow into different connecting end pins in the busbar so as to realize power-on and power-off of coils with different diameters in the stator windings.

This invention discloses a multi-way valve and its control method, a thermal management system, and a vehicle. The multi-way valve includes a drive motor, a valve body, a valve core, a micro switch, and a triggering structure. The valve body has multiple spaced-apart valve ports and a mounting cavity. The valve core is located in the mounting cavity and has multiple sets of spaced-apart flow channels. The drive motor is located in the valve body and connected to the valve core to drive the valve core to rotate relative to the valve body, thereby switching the multi-way valve between multiple connected states. One of the micro switch and the triggering structure is located on the valve body, and the other is located on the valve core. During the rotation of the valve core relative to the valve body, the triggering structure intermittently triggers the micro switch to determine the rotation angle of the valve core. The micro switch communicates with the drive motor. Thus, by rotating the valve core relative to the valve body, the triggering structure can intermittently trigger the micro switch to obtain the current angular position of the valve core. The micro switch can also feed back a signal to the drive motor, facilitating precise control of the valve core's rotation angle.

The utility model relates to a rotary clamp platform which comprises a base, an installation support, an electric control system and a rotary platform, the rotary clamp platform is arranged on the base, the rotary platform is arranged on the installation support through first rotary shafts on the two sides and is in electric signal connection with the electric control system, and at least one rotary clamp is arranged on the rotary platform. The rotating platform is connected with a first rotating shaft, the rotating clamp is connected with a second rotating shaft, the driving mechanism is connected with the first rotating shaft and the second rotating shaft and is in electric signal connection with the electric control system, the electric control system controls the rotating platform and the rotating clamp to rotate, and the rotating clamp platform has the advantage of being high in flexibility. And through the design of the rotating platform and the rotating clamp, the rotating platform and the rotating clamp can rotate around the first rotating shaft and the second rotating shaft, so that the equipment has very high flexibility and can meet the machining requirements of different angles and directions.

The microphone directivity test system is arranged in an anechoic chamber and comprises a placement table, a microphone, a microphone, a microphone, a microphone, a microphone and a loudspeaker, the sound source device is arranged on the placement table and is used for emitting sound waves; the microphone is arranged on the placing table and is used for receiving sound waves; the supporting device is arranged on the placing table and is used for movably supporting the microphone; and the calibration device is arranged on the upper side of the placement table and is used for calibrating the position of the microphone. According to the main technical scheme and the main effects, the system can accurately control the relative positions of the microphone, the sound source and the rotating seat by installing the laser and the marking line and controlling the movement of the rotating seat, the positioning accuracy of the microphone is ensured in each test, and the accuracy reduction caused by positioning errors in a traditional method is avoided.

The technical problem to be solved by the utility model is to provide a motorcycle wheel hub laser etching jig which can be used for obliquely placing a motorcycle wheel hub, is convenient to carry out laser, controls the rotation angle of the wheel hub through a driving motor, is high in automation degree, not only meets the laser etching precision requirement, but also greatly improves the working efficiency, and comprises a bottom plate, a support bottom plate is connected to the surface of the bottom plate in a sliding mode, and a support base is arranged on the support bottom plate. A motor connecting plate which is obliquely distributed is arranged at the top of the support base, a driving motor is installed on the motor connecting plate, a supporting shaft is installed at the output end of the driving motor, and a cavity where the outer side of a middle hub of a hub can be embedded is formed in the top face of the supporting shaft. The center position of the cavity is connected with a fixing rod capable of penetrating through a hub shaft hole, and the outer end of the fixing rod is connected with a detachable pressing head cover.

The invention discloses a positioning device for notebook computer processing in the technical field of notebook computer processing equipment. The positioning device comprises a rack, a fixing block internally provided with a cavity is fixedly arranged on the rack, a sliding groove is formed in the side face of the fixing block, a sand discharging groove is formed in the bottom of the fixing block, and the sliding groove and the sand discharging groove both communicate with the cavity; the fixing block is fixedly provided with a motor, the movable end of the motor drives a rotating disc located in the cavity, driving blocks are symmetrically arranged on the periphery of the rotating disc, the sliding grooves are symmetrically and slidably connected with clamping plates abutting against the corresponding driving blocks, springs are fixedly arranged between the clamping plates and the sliding grooves, and the fixing block is further fixedly provided with an air cylinder. A sealing cover for sealing the sliding groove is driven by the movable end of the air cylinder, a groove for containing the clamping plate is formed in the bottom of the sealing cover, and the sealing cover is provided with a first air spraying head. And the polishing sand is blown out through the sand discharging groove by the first air spraying head, so that cleaning is realized, and the problem that the clamp is not smooth in sliding is solved.

The utility model discloses a numerical control bending device for an environment-friendly ventilating duct, which relates to the technical field of environment-friendly ventilating ducts and comprises a housing, supporting legs, a sliding chute, a motor, a lead screw, a first bearing, a movable plate, a fixed seat, a clamping sleeve, a guide rod, a limiting block, a second bearing, a screw rod, a hand wheel, a mounting platform, a reinforcing rib, a bending component and the like. The servo motor is adopted to drive the lead screw, the rotating angle and speed of the lead screw can be accurately controlled, and then the moving distance and speed of the moving plate are accurately controlled. In this way, in the bending process of the ventilation pipeline, control over the bending position and angle is more accurate, the problem that it is difficult for traditional manual bending or simple mechanical bending equipment to guarantee the consistency of the bending precision is effectively solved, the bending quality of the ventilation pipeline is greatly improved, it is guaranteed that the product is tightly connected and good in sealing performance when installed and used, and the product quality is improved. The overall performance of the ventilation system is improved.

The present invention belongs to the technical field of torsion fatigue testing, and in particular, relates to a torsion fatigue testing device, including a frame, a test bench, a lifting device, a first driving mechanism, a driving head, a first locking structure, a second locking structure and a second driving mechanism, wherein the first locking structure and the second locking structure are arranged at intervals, the first locking structure locks one end of the headband, the second locking structure locks the other end of the headband, the second driving structure can drive the second locking structure to move in a direction away from the first locking structure, the first driving mechanism is connected to the lifting device, the driving head is connected to the first driving mechanism, the lifting device can drive the first driving mechanism and the driving head to move in a direction close to or away from the test bench, the driving head is used to be connected to an adjustment knob on the headband, and the first driving mechanism drives the driving head to rotate so that the driving head drives the headband to twist. The torsion angle of the adjustment knob can be accurately controlled to improve the accuracy of the measured torsion limit times.

This utility model relates to a fixing fixture for machining starter stators, belonging to the field of starter stator machining technology. It includes a fixture base and a positioning table, with fixture components mounted on the positioning table. The positioning table includes a frustum mounted on the fixture base. This fixing fixture for machining starter stators has three positioning fixtures evenly distributed circumferentially. Through synchronous transmission via gears and racks, it ensures that the center of the stator base coincides with the rotation center of the frustum. An M-shaped rubber pad accommodates minor deformations on the stator base surface, preventing indentations or damage caused by rigid clamping. A rotary cylinder enables rapid clamping or releasing. A dual-brake motor, in conjunction with a control system, precisely controls the rotation angle of the frustum, reducing manual adjustment time. The fixture components and drive components are installed independently, allowing for adaptation to different stator base specifications by replacing the positioning fixtures, thus offering strong versatility. The motor has a built-in brake function, locking the frustum position during power failure to prevent accidental rotation during machining, improving safety.

The utility model provides a deviation rectifying device of composite drainage network production equipment, which belongs to the technical field of composite drainage network production equipment and comprises a support frame, a driving motor is arranged on the outer side wall of the support frame, and a rotating shaft is arranged at the output end of the driving motor. The end of the rotating shaft penetrates through the side wall of the supporting frame and is connected with a two-way screw located on the inner side of the supporting frame, the other end of the two-way screw is arranged on the inner side wall of the supporting frame, the two-way screw is symmetrically sleeved with driving blocks, electric telescopic push rods are arranged at the bottoms of the driving blocks, and deviation rectifying plates are arranged at the ends of output shafts of the electric telescopic push rods. The deviation rectifying device can fix the position of the drainage net, the situation that the quality of finished drainage net products is affected by drainage net folding caused by deviation of the drainage net during winding is effectively prevented, the position of the deviation rectifying plate can be adjusted, and the deviation rectifying device is suitable for winding deviation rectifying of drainage nets of various sizes.