1589results about How to "Improve assembly accuracy" patented technology

The invention provides an automatic assembling method and system for an automobile safety belt pretensioner based on machine vision, and relates to the technical field of automatic assembly.The method comprises the steps that firstly, images of standard parts of the pretensioner are collected, geometrical characteristic parameters are extracted, and the mapping relation from two-dimensional image coordinates to three-dimensional space coordinates is established; calculating coordinates of an assembly reference point and an assembly path point; acquiring a real-time image of a to-be-assembled part, extracting feature data, matching the feature data with a standard part, calculating a position deviation value and an angle deviation value, and updating an assembly path point coordinate; and controlling the robot to execute assembly, and dynamically adjusting the assembly speed and the assembly strength of the robot based on the assembly state evaluation index after data fusion of the force sensor and the displacement sensor until automatic assembly is completed.

The invention provides an intelligent assembling and welding manufacturing method and system for an open-type pressure machine tool body, and relates to the technical field of open-type pressure machine tool body assembling and welding. The method comprises the steps that according to the structural characteristics of the open-type pressure machine tool body, the machine tool body is divided into a plurality of independent functional modules, and the functional modules are positioned and clamped; the assembled open type pressure machine tool body is obtained; the method comprises the steps that a welding sequence optimization model of welding seams is established according to a key stress structure of an open type pressure machine tool body, and the optimal welding sequence of the welding seams is obtained by solving the welding sequence optimization model; welding the assembled open-type pressure machine tool body by utilizing the optimal welding sequence, and in the welding process, identifying a welding seam type and defect characteristics by adopting a phased array ultrasonic imaging technology, outputting a welding defect ultrasonic imaging result, predicting an expansion evolution behavior of the defect according to an intelligent detection result, and forming a quantitative defect evaluation system; and multi-information fusion intelligent evaluation of the welding quality is realized.

The invention provides a micropore machining method capable of adjusting a laser incidence angle in real time. The micropore machining method comprises the steps that S1, parameters such as the type of a micropore material, the micropore size and the depth-diameter ratio are determined according to the specific application environment and the use performance requirement; s2, according to the type and the characteristic parameters of the microporous material, a machining path drawing file is written, and a laser beam is controlled to conduct punching layer by layer according to the drawing file path in a spiral line mode; s3, when each layer is machined, laser scans in a spiral line mode according to a drawing and file path, and then trimming is conducted at the edge position in a concentric circle mode; s4, fitting a function relationship between the incident angle and the taper through an experiment, adjusting the incident angle of each layer of laser processing, determining layer-by-layer decreasing compensation of the compensation amount of the incident angle of each layer through the function, and eliminating the positive taper of the through hole; s5, circulation is conducted in this way, and machining of all layers is completed according to the mode; and S6, after machining of the last layer is finished, bottom-to-top and top-to-bottom reciprocating trimming is conducted in a concentric circle mode, and high-quality machining of the micropores is achieved.

The invention discloses automatic detection and assembly production equipment for a PCB (Printed Circuit Board) and a use method of the automatic detection and assembly production equipment, and solves the problems that an existing device is not accurate in pause when detecting angle adjustment of a camera and image distortion is caused by blurred sight when detecting movement of the camera. The device comprises a device main body, an automatic feeding assembly, at least one group of combined detection mechanisms and an auxiliary detection assembly, and the device main body comprises a device base, a detection base and an assembly base; the combined detection mechanism is arranged, the combined detection part does not interfere with operation of the automatic feeding assembly, the detection efficiency is improved, the combined detection part is driven by the monitoring driving part and the detection linkage part, the detection range can be flexibly adjusted, automatic pause is achieved during detection, and therefore a camera is allowed to have more time for focusing, and the detection efficiency is improved. And each part is ensured to be in a clear focus state.

The invention discloses a dexterous hand finger based on connecting rod transmission, a bionic mechanical arm and a humanoid robot, belongs to the field of bionic mechanical arms, solves the problem that a transmission mechanism of an existing dexterous hand is low in response speed, and adopts the technical scheme that the dexterous hand finger mainly comprises a finger base and a finger body, a driver and a transmission mechanism in transmission connection with the driver are arranged on the finger base, the driver drives the finger body to bend and / or swing through the transmission mechanism, the transmission mechanism comprises a guide piece and a sliding block installed on the guide piece in a sliding mode, and the sliding block is in transmission connection with the finger body. A traction rope connected with the sliding block is wound on an output shaft of the driver, the driver controls the output shaft to rotate forwards and backwards so as to drag the sliding block to slide back and forth along the guiding piece through the traction rope, and then the finger body is controlled to bend and / or swing. The finger is mainly used for driving the sliding block to move through the pulling rope so as to control the finger body to bend and swing, and the response efficiency of the finger body can be improved.

The invention discloses a machine tool assembly consistency evaluation method and device, and belongs to the field of machine tool assembly.The machine tool assembly consistency evaluation method includes the steps of component dynamic stiffness testing, whole machine dynamic stiffness testing, frequency response function analysis, characteristic frequency range determination, dynamic stiffness data statistics, dynamic stiffness evaluation theoretical value acquisition, dynamic stiffness evaluation and the like. Quality of key components is controlled from subassembly to final assembly, assembly consistency testing is carried out in all links of assembly, if assembly quality problems or assembly consistency problems are found, earlier-stage processing can be carried out, troubleshooting time is shortened, assembly efficiency is improved, assembly precision and efficiency of a machine tool can be improved, and quality and performance of products can be guaranteed.

The invention provides an assembly structure of a bumper and a through-type vehicle lamp and a vehicle. The assembly structure of the bumper and the through type vehicle lamp comprises a bumper assembly, a vehicle lamp assembly arranged above the bumper assembly, a grating mounting frame and two fender front supports. The grille mounting frame is connected to the inner side of the middle of the bumper assembly; the two fender front supports are arranged on the left side and the right side of the grille installation frame respectively and connected to the inner side of the end of the bumper assembly. The vehicle lamp assembly comprises a middle vehicle lamp arranged on the grille mounting frame and corner vehicle lamps arranged on the two fender front supports correspondingly, and the middle vehicle lamp and the two corner vehicle lamps are arranged in the left-right direction of the vehicle in a penetrating mode. According to the assembly structure of the bumper and the through-type vehicle lamp, the assembly precision between the vehicle lamp assembly and the bumper assembly can be effectively improved, the gap and the surface difference size between the vehicle lamp assembly and the bumper assembly are effectively controlled, and therefore the purpose of improving the assembly effect between the through-type vehicle lamp and the bumper assembly is achieved.

The invention discloses an electric cylinder long shaft piece three-dimensional position adjusting and supporting device, and relates to the technical field of electric cylinder assembling, the electric cylinder long shaft piece three-dimensional position adjusting and supporting device comprises a rack, two sets of supporting mechanisms used for supporting an electric cylinder long shaft piece are movably arranged on the rack side by side, and the distance between the two sets of supporting mechanisms can be adjusted; the supporting mechanism is movably provided with a supporting frame, the supporting frame is provided with a clamping and supporting station used for clamping the long shaft part of the electric cylinder, and the supporting frame is provided with a moving executing mechanism used for adjusting the clamping and supporting station in the X direction, the Z direction and the Y direction; the moving execution mechanism comprises an X-direction moving execution assembly, a Y-direction moving execution assembly and a Z-direction moving execution assembly. The clamping and supporting stations of the two sets of supporting mechanisms are matched to drive the electric cylinder long shaft part to be subjected to position adjustment in a three-dimensional space, adjustment of the central axis of the part in the electric cylinder part assembling process is facilitated, and the assembling efficiency and precision are improved.

The invention discloses a precision adjusting method of a rotary coiling machine. The precision adjusting method comprises the following steps: arranging target point units at at least three calibration positions of a coiling block; measuring the coordinates of the target ball by adopting a laser tracker, then rotating the winding drum for at least two times, and measuring the coordinates of the target ball; obtaining a circle center coordinate of the calibration position; based on the circle center coordinates, the coaxiality of the winding drum is obtained; after the coaxiality is adjusted, the rotation device is controlled to rotate, and the circle center coordinates of the calibration position are determined again; and determining a rotation surface of the rotation device based on the circle center coordinates of the calibration position determined for multiple times to obtain the perpendicularity of the winding drum, and carrying out assembly adjustment until the perpendicularity of the winding drum is smaller than a second threshold value. The precision adjusting efficiency of the rotary recoiling machine is improved, and the assembling efficiency, the production efficiency and the assembling precision of the recoiling machine are improved.

The present invention discloses a high-precision and flexible truck welding line conveying sled, including a sled frame, at least one sliding positioning device for cooperating with the front end of the longitudinal beam of the vehicle body is respectively arranged on the left and right sides of the front end of the sled frame, and a supporting positioning device for supporting and positioning the rear end of the vehicle body floor is respectively arranged on the left and right sides of the rear end of the sled frame; the sliding positioning device includes a positioning device support fixed on the sled frame, a slider positioning mechanism arranged on the positioning device support, which includes a sliding sleeve fixed on the positioning device support and a slider slidably arranged in the sliding sleeve, a positioning pin for cooperating with the vehicle body for positioning is fixed on the slider, and the slider can be positioned in the sliding sleeve through a positioning rod structure. Through the sliding positioning device and the supporting positioning device, the conveying sled can be applied to the precise conveying of various varieties and differentiated vehicle bodies, and has good practicality and market application value.

The utility model relates to the technical field of hub casting molds, and discloses a split type top mold structure which comprises a top mold body, the top mold body is divided corresponding to a rim part of a hub casting to form a split type structure comprising an upper mold and a lower mold, and isolation tables used for supporting the upper mold are arranged on the upper end face of the lower mold at intervals in the circumferential direction. And an exhaust gap for exhausting is formed between the upper die and the lower die. The top die is arranged in a split mode, the upper die and the lower die can be machined and manufactured independently, manufacturing of cooling structures such as an air pipe and a water way is facilitated, and the manufacturing cost of the hub die is reduced; the arrangement of the exhaust seam is beneficial to smooth exhaust of air at the rim part, and the defects of air holes, insufficient casting, flow marks and the like at the rim part of the hub casting are avoided; the positioning structure improves the assembly precision of the top die, ensures the casting quality, ensures the accurate alignment of a bolt hole and a threaded hole, and improves the assembly efficiency; and due to the arrangement of the negative pressure cavity, the exhaust efficiency is improved, and gas in the cavity is exhausted more thoroughly.

The utility model relates to the technical field of door and window processing, and provides a square window frame assembly table which comprises a base assembly, a first cross beam assembly and a second cross beam assembly, the first cross beam assembly and the second cross beam assembly are sequentially arranged on the base assembly in the Y direction, the first cross beam assembly is fixed to the base assembly, and the second cross beam assembly is fixed to the base assembly. The second cross beam assembly is arranged on the base assembly in a sliding mode through a first driving assembly, the first cross beam assembly is sequentially provided with one-to-one clamping machine heads and one-to-two clamping machine heads in the Y direction, the second cross beam assembly is sequentially provided with two-to-one clamping machine heads and two-to-two clamping machine heads in the Y direction, and the one-to-one clamping machine heads and the two-to-one clamping machine heads are fixedly arranged. And the first and second clamping machine heads and the second and second clamping machine heads are movably arranged. According to the assembly table, the square window frame can be quickly assembled by adjusting the position and action of the machine head, and the assembly table is easy to operate, high in assembly precision, high in efficiency, stable in positioning and safe to operate.

The invention discloses a motor stator and rotor assembling device which comprises a workbench, a support is installed on the workbench, and a clamping and fixing assembly used for clamping and positioning a motor stator assembly is installed on the support. Two conveying rails arranged side by side are arranged on the table top of the workbench, the two conveying rails support the edge of the end of a gearbox shell of a motor rotor assembly and convey the motor rotor assembly to the position under a motor stator assembly, a motor rotor is located above the two conveying rails, and the output end of the motor rotor is located between the two conveying rails. A first limiting assembly matched with the bottom end face of the output end of the motor rotor for limiting and a second limiting assembly matched with the side face of the output end of the motor rotor for limiting are arranged on the table top of the workbench. The linear movement driving assembly is connected with the clamping and fixing assembly. The rotor shaft is fixed on a single side, the stator and the rotor are assembled simply, efficiently and accurately, and the rotor shaft assembling device can adapt to rotor shafts and shells with different assembling modes and different shapes and sizes.

The utility model relates to the technical field of assembling equipment, in particular to an assembling machine with a posture adjusting function, which comprises an assembling platform, a component moving device and a visual positioning and recognizing device. The component moving device is arranged above the assembling platform and used for moving the first component and / or the second component and adjusting the posture of the first component and / or the second component so that the posture of the first component can correspond to the posture of the second component, and the visual positioning and recognizing device is used for positioning the first component and the second component and recognizing the posture of the first component and the posture of the second component. The visual positioning and recognition device is arranged to determine the relative positions of the first component and the second component, the relative postures of the first component and the second component are recognized before assembly, the postures of the first component and / or the second component are finely adjusted according to the relative postures to make the postures of the first component and / or the second component correspond, the assembly precision is improved, and the assembly efficiency is improved. And the possibility that the first component and / or the second component are / is damaged due to non-corresponding postures is reduced.

A counter weight positioning tool is used for positioning a counter weight part of engineering machinery and comprises a tool platform used for bearing the counter weight part. And the plurality of positioning assemblies are used for limiting the position of the counterweight piece. The positioning assembly comprises an upper positioning plate, a lower positioning plate and at least one positioning support arranged between the upper positioning plate and the lower positioning plate. The positioning support comprises a top plate, a bottom plate and a supporting plate connected between the top plate and the bottom plate. The upper positioning plate is detachably arranged on the top plate of the positioning support closest to the upper positioning plate, the lower positioning plate is detachably arranged on the bottom plate of the positioning support closest to the lower positioning plate, and the upper positioning plate and the lower positioning plate are both used for being matched with the outer contour of the balance weight part so as to limit the position of the balance weight part. Through the counter weight positioning tool, the counter weight assembly efficiency is improved, the universality of the counter weight is improved, interchange of the counter weight with the same outer contour is achieved, and the use cost of customers is reduced.

The invention discloses a high-precision digital display hydraulic self-centering bearing assembling device which comprises a base (1), a bearing seat positioning device (2) is assembled in the middle of the base (1), a fixed plate (9) is assembled above the base (1), a driving part is installed on the fixed plate (9), a movable plate (7) is assembled below the fixed plate (9), and a bearing pressing plate (6) is assembled on the bottom face of the movable plate (7). And a telescopic rod (17) of the driving piece drives the movable plate (7) to move up and down. The device is reasonable in design, the assembly precision is improved, and potential quality hazards caused after the bearing is obliquely pressed in are avoided; the operation difficulty and the labor intensity are reduced; a pressure value is automatically recorded, a pressure curve can be observed, and abnormity during bearing assembly can be found in time according to the pressure curve and the pressure value, such as over-tight or over-loose fit between a bearing chamber and a bearing, so that potential quality hazards are eliminated; and during product model changing, frequent replacement of the bearing seat positioning device is avoided.

The invention discloses a connector terminal automatic assembling device and an assembling method thereof, and belongs to the technical field of connector production. An automatic connector terminal assembling device comprises a terminal installation assembly, and the terminal installation assembly is matched with the horizontal position of a positioning hole used for installing a terminal in a connector body. The conveying assembly is used for conveying the connector body; the positioning assembly is arranged above the conveying assembly and is used for positioning the connector body at the moment when the terminal is installed; the connector body conveying structure provided by the invention is stable, the alignment precision of the terminal and the connector body is high, and the terminal assembling precision is improved; the connector body is limited and pressed, so that the acting force of the pressing rod can be kept stable, the connector body is pressed at the moment when the terminal is mounted in the connector body, the assembly precision is ensured, and the reject ratio is reduced; air flow can be triggered, dust blowing treatment is carried out, and the assembling quality of the connector is guaranteed.

The invention relates to a cone ring installation structure and method suitable for a 10-150 MW generator, and belongs to the technical field of steam turbine generators, the cone ring installation structure is of a ground bearing type structure, the cone ring installation structure comprises a stand column, a mechanical arm main machine and a clamp structure, the stand column is provided with the mechanical arm main machine, the mechanical arm main machine comprises two mechanical arm joints capable of rotating by 360 degrees, and the lower end of the mechanical arm main machine is connected with the clamp structure; and the conical ring is quickly butted and fixed by using a quick connector on the clamp structure. The operation mode of cone ring assembly is changed into mechanical operation from manual operation, manpower resources are saved, and the assembly precision and the operation efficiency are greatly improved.

The invention belongs to the technical field of precision equipment assembly, and discloses a human-in-the-loop precision equipment assembly precision regulation and control method and related device.The method comprises the steps that parameter input and precision output are obtained according to data obtained through actual measurement and adjustment of precision equipment, and a high-precision sample set database is established in combination with geometric parameters and physical parameters; obtaining empirical data, and constructing an empirical model and a preference learning model based on the empirical data; bayesian optimization is carried out based on a high-precision sample set database, a digital twinborn model is established in combination with a human-in-the-loop, optimization is carried out through the digital twinborn model, an empirical model and a preference learning model are combined, and an assembly adjustment scheme meeting the assembly precision and performance is selected. According to the method, empirical data are introduced into optimization regulation and control of complex precision equipment assembly, an effective method is provided for achieving rapid and accurate regulation and control of complex precision equipment, and the method has great significance in greatly improving the assembly precision of the complex precision equipment.

The invention discloses an electrically-driven rotor assembling tool and a using method thereof, and belongs to the technical field of rotor assembling tools, the electrically-driven rotor assembling tool comprises a driving motor, a servo press, an X-Y direction adjusting mechanism and an angular direction adjusting mechanism, the driving motor can drive the servo press and the tool to integrally move up and down, a rotor clamping air cylinder carries a rotor assembly to descend to a designated position, and the X-Y direction adjusting mechanism is used for adjusting the X-Y direction adjusting mechanism. The Z-direction pressure sensor feeds back a pressure value to the controller, the controller judges and recognizes whether the angular adjustment mechanism needs to anticlockwise rotate by a specific angle or not, after rotation, the controller calculates and drives the direction dynamic positioning of the linear motor in real time according to the number of cycles and whether the servo press needs to continue press fitting or not according to detection values of the X-direction sensor, the Y-direction sensor and the Z-direction sensor in the whole process; the device is simple in structure and low in cost, has pressure feedback dynamic positioning, and can effectively improve the assembly precision and reduce the abnormal stress alarm frequency, thereby improving the production line efficiency and the assembly quality.

The utility model relates to a motor and electric equipment, the motor comprises a motor shaft and a protection ring, the protection ring comprises a ring body and a plurality of conductive fiber bundles, the plurality of conductive fiber bundles are fixed in the ring body, the plurality of conductive fiber bundles are arranged at intervals along the circumferential direction of the ring body, and the same end of each conductive fiber bundle extends out of the ring body so as to be suitable for being in contact with the motor shaft; in the radial direction of the ring body, the length L of each conductive fiber bundle extending out of the ring body ranges from 1.5 mm to 3 mm, and the width W of the gap between the ring body and the motor shaft meets the condition that W is larger than or equal to 0.7 L-0. 1 mm and smaller than or equal to 0.8 L + 0.05 mm. The working performance and the service life of the motor can be improved.

The invention provides a water pump assembling device, and belongs to the technical field of water pump assembling. A mandrel and an impeller are assembled together through the water pump assembling device, a first key groove is formed in one end of the mandrel, and a second key groove is formed in the impeller. The water pump assembling device comprises a workbench, a supporting frame, a supporting seat, a first translation mechanism, a translation plate, a first clamping rotating mechanism, a lifting positioning mechanism, a lifting press-fitting mechanism, a second clamping rotating mechanism, a positioning mechanism, a second translation mechanism, a translation table, a lifting mechanism and a clamping turnover mechanism. The lifting positioning mechanism is embedded into the first key groove, and the positioning mechanism is embedded into the second key groove, so that the core shaft and the impeller are positioned, the relative position of the core shaft and the impeller is determined, and therefore when the core shaft is sleeved with the impeller, it is ensured that the first key groove can be opposite to the second key groove; therefore, the connecting key can be simultaneously embedded into the first key slot and the second key slot, so that the assembly precision of the mandrel and the impeller is improved.

The invention relates to the technical field of AR equipment, and provides a product assembly method and device, electronic equipment, a storage medium and a program product. The method comprises the following steps: displaying assembly operation information corresponding to a current assembly process; the assembly operation information is used for guiding a correct operation mode of the current assembly process; based on a user operation instruction for the current assembly process, an assembly equipment operation instruction is sent to target assembly equipment; the assembly equipment operation instruction is used for indicating target assembly equipment to execute corresponding assembly operation; receiving an assembly quality detection result sent by the server; the assembly quality detection result is obtained by performing assembly quality detection on the assembly operation real-time image of the current assembly process by the server; displaying prompt information corresponding to the assembly quality detection result; the prompt information is used for prompting to enter the next assembly process or prompting to improve the current assembly process of which the assembly operation is completed. The product assembling accuracy can be improved, and the product percent of pass is finally improved.

The invention provides a new energy electric heavy truck frame assembly and an assembling method thereof.The new energy electric heavy truck frame assembly comprises a truck frame body, truck frame mounting cross beams, a left battery frame and a right battery frame, and the multiple truck frame mounting cross beams are arranged between the middle of a left longitudinal beam of the truck frame body and the middle of a right longitudinal beam of the truck frame body; the frame mounting cross beams are distributed in the length direction of the frame main body; the left battery frame is arranged on the left side face of the middle of the left longitudinal beam, and the right battery frame is arranged on the right side face of the middle of the right longitudinal beam and is symmetrical to the left battery frame. The frame assembly can be conveniently assembled, meanwhile, during assembling, the assembling precision of the frame assembly can be effectively improved through the cross beam installation auxiliary tool and the frame installation auxiliary tool, the assembling time is saved, and the assembling efficiency is improved.

The invention relates to the technical field of non-standard automation, in particular to an injection molding mechanism and a machining method, by arranging a molding device, a material taking and assembling device and a discharging device, the procedures of injection molding, injection molding blanking, clamping and positioning and assembling can be fully automatically operated; interference of manual factors is reduced, labor intensity is reduced, transformation and upgrading of a production line can be achieved, and production efficiency and rotation speed are improved. The first mechanical arm and the second mechanical arm are arranged, the upper shell and the lower shell can be taken at the same time, the upper shell and the lower shell can be assembled in the conveying and discharging process, and the production process is simplified. The material taking and assembling device comprises a material taking module, and the material taking module is integrated with a product adsorption assembly, a water gap shearing assembly and a product clamping assembly, so that the production steps are met, and meanwhile, the size of the material taking module is reduced; the product clamping assembly can clamp the upper shell and the lower shell, shaking during assembling is avoided, and the assembling precision is improved.

The invention discloses a motor rotor assembly tool and an assembly method.The motor rotor assembly tool comprises a supporting base, an inner positioning ring, an outer positioning ring, an axial positioning module, an axial adjusting module and a radial adjusting module, the inner positioning ring and the outer positioning ring provide coaxial positioning for a rotor shaft system and a supporting framework respectively, and in the assembly process, the axial adjusting module and the radial adjusting module are arranged on the supporting base; the axial adjusting module is fixedly connected to the supporting seat and the supporting framework so as to adjust the axial position of the supporting framework; then the axial positioning module is fixedly connected with the rotor shaft system and the supporting framework, and the axial position of the supporting framework is positioned and fixed; after the axial position of the supporting framework is positioned and fixed, the radial adjusting module is inserted between the rotor shaft system and the supporting framework, the coaxiality of the rotor shaft system and the supporting framework is finely adjusted, and finally the rotor shaft system and the supporting framework are assembled, so that the assembling difficulty of the rotor shaft system and the supporting framework can be remarkably reduced, and the assembling efficiency is improved. And the assembly precision of the rotor shaft system and the supporting framework is improved.

The utility model belongs to the technical field of permanent magnet motors, and particularly relates to magnetizing and demagnetizing integrated equipment for a permanent magnet motor, so as to solve the problems that the traditional magnetizing, demagnetizing and magnetism supplementing processes of the permanent magnet motor are complicated, the rejection rate of a permanent magnet under the traditional thermal demagnetizing treatment is high, and energy conservation and environmental protection are not realized. The power supply system is used for outputting pulse waveform current or alternating current with attenuated amplitude, the coil is used for being electrically connected with the power supply system, and the reinforcing structure is used for reinforcing the coil. The reinforcing structure is used for reinforcing the coil, and the rotating platform is used for driving the permanent magnet motor to rotate and adjust. The magnetizing and demagnetizing integrated equipment for the permanent magnet motor has the effect of integrating magnetizing, demagnetizing and magnetism supplementing of the permanent magnet motor on the basis of not changing the structure of the permanent magnet motor, and is simple and effective in treatment process, energy-saving and environment-friendly.

The invention relates to the technical field of sheet metal part machining, in particular to a scraper sheet metal part scraping device with a positioning mechanism, which comprises a base, a placing groove is formed in the upper end of the base, and two groups of symmetrical fixing blocks are fixedly connected to two sides of the placing groove in the upper end of the base; third sliding rods are jointly and fixedly connected between the two sets of fixing blocks, an adjusting mechanism is jointly installed on the outer sides of the two sets of third sliding rods, the adjusting mechanism comprises an installation block, two sets of symmetrical grinding mechanisms are installed at the positions, close to the lower end, of the front end of the installation block, and the adjusting mechanism further comprises a sliding block; the punching mechanism is installed at the lower end of the sliding block, the adjusting mechanism can enable the sliding block to move left and right while moving up and down, so that the comprehensive angle of the boring blade is adjusted, the grinding mechanism grinds the edge of the scraper cutting board, burrs left on the edge of the scraper cutting board are cleaned, and holes can be cleaned when the punching mechanism punches holes.

The invention provides a double-output air cylinder which comprises a cylinder body, a cylinder cover, a piston, a piston rod and a piston rod. A cavity is formed in the cylinder body, a partition plate is arranged in the cavity, and the partition plate divides the cavity into a front cavity and a rear cavity; the piston assembly comprises a first piston arranged in the front cavity in a sliding fit mode and a piston rod arranged on the head portion of the first piston, and the piston rod extends out of the cylinder body and serves as a first output end. The rotating assembly comprises a rotating assembly body arranged in the rear cavity, a driving shaft is arranged on the rotating assembly body, and the driving shaft penetrates through the partition plate, is in rigid connection with the first piston and can drive the piston rod to rotate in the radial direction. The double-output air cylinder is compact in structure, small in size, capable of adjusting the output shaft at any angle, high in adjusting precision, reliable and stable to use, particularly suitable for mechanical arms of non-standard equipment, and wide in application range, and has a self-locking effect.

The invention discloses an assembly type building stair mold, and relates to the technical field of stair molds, the assembly type building stair mold comprises a mold mechanism, the side face of the mold mechanism is provided with a transverse steel bar limiting mechanism, and the transverse steel bar limiting mechanism is used for limiting and fixing transverse steel bars in a prefabricated stair. According to the longitudinal reinforcement limiting mechanism, the height of a clamping head is accurately adjusted through a third mounting bolt, the clamping head can be flexibly selected according to the diameter of a longitudinal reinforcement, the mounting height and position of the longitudinal reinforcement can be accurately controlled, the overall positioning accuracy of a reinforcement framework is guaranteed, and then the mechanical property of the prefabricated stair is improved; the sleeve plays a role in protecting the end, inserted into the mold mechanism, of the third mounting bolt, it is avoided that concrete adhesion affects bolt disassembly, meanwhile, due to the detachable design of the third mounting bolt and the modular structure of the steel bar limiting mechanism, the demolding difficulty is lowered, damage to stairs after a component is formed is reduced, and the demolding efficiency and the finished product quality are improved.