93results about How to "Reduce rework rate" patented technology

The invention discloses a laser marking quality automatic evaluation method based on machine vision. The method comprises the following steps of S1, collecting a laser marking image and performing preprocessing; s2, inputting the preprocessed image into an image segmentation network constructed based on FastSAM to generate a segmentation mask image; s3, extracting a marking area communication block according to the segmented mask image, and constructing an image sub-area set; s4, normalizing the sizes of the image sub-regions, constructing three-channel enhanced input, inputting the three-channel enhanced input into an image coding network constructed based on the OfficientViT, and extracting an image-level feature vector; s5, inputting the image-level feature vector into an ArcFace angle interval classification module, and outputting a defect type classification result; s6, calculating a multi-dimensional quality scoring index; and S7, inputting the multi-dimensional quality scoring indexes into a weighting function to generate a comprehensive scoring result, comparing the comprehensive scoring result with a qualified threshold, and outputting an evaluation result. According to the method, a region perception image segmentation strategy and a lightweight feature coding mechanism are combined, and automatic identification and quality evaluation of character defects in the laser marking image are realized.

The utility model relates to a hollow plate hot mark pressing device which is suitable for the field of hollow plate processing. The device comprises a support, two hot-pressing rollers rotating relatively are arranged on the support, a plurality of protruding annular hot-pressing teeth are evenly distributed on the hot-pressing rollers in the radial direction, a hot-pressing mark channel is formed, a motor drives a chain to conduct transmission, continuous machining of the hollow plate is achieved, and efficiency is improved. The hot-pressing roller is hollow to form a heat-conducting oil cavity, the hollow rotating shaft serves as an oil inlet and outlet channel, heat-conducting oil is circularly heated under the action of the conveying pump, the temperature is maintained at 180-220 DEG C, and it is ensured that the indentation quality is stable. A protective shell is arranged at the top of the device, and a feeding port and a discharging port are provided with height-adjustable L-shaped pressing plates, so that the device is suitable for plates with different thicknesses. According to the device, by optimizing the structural design, efficient and accurate hot-pressing mark machining is achieved, the machining quality of the hollow plate is remarkably improved, the service life of the hollow plate is remarkably prolonged, the production cost is reduced, and good market application prospects are achieved.

The utility model discloses a parallel correction device of an exposure machine. The parallel correction device comprises a mask assembly, a correction assembly arranged on the mask assembly and a moving assembly, the correction assembly comprises an air cylinder, a correction plate arranged on the air cylinder and a plurality of correction balls arranged on the correction plate; the air cylinder controls the correction plate to enter and exit between the moving assembly and the mask assembly, one end of the correction ball abuts against the side, close to the correction plate, of the mask assembly, and the moving assembly drives a film source to move in the direction close to the mask assembly through torsion control. Therefore, the film source abuts against the plurality of correction balls. According to the utility model, the moving assembly drives the film source to move towards the correction balls, and the torsion-controlled moving assembly ensures that the uniformly distributed correction balls respectively abut against the photomask and the film source, so that the photomask and the film source are arranged in parallel, the alignment time is shortened, the productivity is improved, the exposure effect of the film source is improved, and the rework rate of products is reduced.

The present application relates to the technical field of light pipe assembly, and discloses an X-ray light pipe flange packaging process, which comprises the following steps: placing a light pipe module in a vacuum environment; using an automatic grabbing mechanism to complete assembly; using an automatic screwing mechanism to tighten the flange bolts in a diagonal cross and step-by-step pre-tightening sequence, and monitoring the vacuum degree in real time; using a sensor group to collect multi-dimensional process parameters such as torque, angle, vacuum degree change rate, flange vibration and temperature in real time; a central control system judges the thread state according to the torque-angle curve, judges the sealing state according to the vacuum degree change rate, analyzes the contact uniformity according to the vibration characteristics, and corrects the target torque value according to the temperature data; when the judgment result exceeds the threshold value, an automatic alarm is given and a correction instruction is executed; through multi-parameter real-time monitoring and closed-loop control, the present application realizes instant identification of bolt tightening abnormalities, temperature compensation correction of torque, online early warning of vacuum leakage and full-process data tracing.

The utility model relates to welding equipment technical field, concretely relates to a kind of intelligent gantry submerged arc automatic welding machine, it includes: piece platform, top is equipped with multiple piece grooves along length direction, and both sides are equipped with machine tool track respectively;Welding machine tool, welding machine tool is transversely placed above piece platform, and two ends are respectively equipped with with machine tool track cooperation walking mechanism, welding machine tool top is respectively equipped with welding machine power supply corresponding each piece groove;Movable crossbeam, movable crossbeam is horizontally arranged in welding machine tool middle part, and movable crossbeam is equipped with with each piece groove corresponding cross slide;Telescopic arm, respectively with each cross slide corresponding each cross slide connection, bottom end is respectively equipped with welding torch, welding torch is connected with corresponding welding machine power supply;Controller, controller is set in one side of welding machine tool, and walking mechanism, telescopic arm, welding machine power supply and welding torch are respectively electrically connected with controller.The utility model is integrated, and automation design has significantly improved the efficiency and quality of I-shaped steel structure welding.

The application provides an old residential area intelligent updating method and system based on spatial anchor point crowd portrait, and relates to the field of urban planning. The method comprises the following steps: constructing an urban renewal strategy database, determining a spatial anchor point of an old residential area problem space, collecting spatial anchor point resident information, intelligently matching an updating strategy, and intelligently updating the old residential area. The method realizes the intelligent updating of the old residential area by collecting crowd portrait data of the old residential area problem space, matching urban renewal strategy items, and connecting to a concrete 3D printer and a hoisting mechanical arm. The application can cope with the updating of old residential areas in the field of urban planning, realize the matching of updating strategies based on resident crowd portraits, collect more data on the current problems of old residential areas, have higher accuracy of updating strategy matching, have a shorter cycle of "research-design-construction", and have higher qualified rates of standardized operations in updating construction.

The utility model relates to a bottle and can material channel system which comprises a material channel and a separating structure which divides the material channel into a plurality of areas, each area is provided with a temperature monitoring device used for monitoring temperature, and the areas comprise an upper flame area and a bottom material conveying area. According to the utility model, the main material channel and the branch material channels are divided into a plurality of independent areas, and the thermocouple is arranged in each area for accurate temperature measurement and independent temperature control, so that the defects of glass stripes, bubbles, knots and the like caused by abnormal temperature of the material channels can be effectively avoided; the molten glass is enabled to enter a product machine to be molded in a stable and appropriate temperature environment, so that the quality and the yield of glass bottle tank products are greatly improved, and the competitiveness of the products in the market is enhanced.

The invention provides a high-strength complex-section cavity product cutting device which comprises a height adjusting mechanism, a radian adjusting mechanism, a follow-up mechanism and a cutting unit which are sequentially arranged from bottom to top. The cutting-off unit comprises a vertical cutting-off mechanism used for cutting off material belts on the two sides of the cavity product and a horizontal cutting-off mechanism used for cutting off a reinforcing rib structure in the middle of the cavity product. The invention further provides a cutting-off method which comprises the following steps: pre-punching and cutting off a process hole in advance in a material belt before rolling forming, and integrally cutting off a cavity product by adopting a regional secondary cutting-off mode after rolling forming. Follow-up continuous cutting of high-strength complex section type cavity products can be achieved on a rolling line, the cutting efficiency is high, the quality is good, the product rework rate is greatly reduced, and the service life of a cutter is remarkably prolonged; the device is flexible to use and high in universality, and can be adapted to cold-bending profiles with various different section types through replacement of the standard cutting head.

The application discloses a novel fuel cell graphite bipolar plate with anti-overflowing glue, wherein the inner and outer sides of the sealing groove structure are provided with first glue overflow grooves parallel to the sealing groove; the inner side of the bipolar plate edge is provided with a second glue overflow groove; the second glue overflow groove surrounds the bipolar plate edge; a third glue overflow groove is arranged between the first glue overflow groove on the outer side of the sealing groove and the second glue overflow groove and close to the bipolar plate edge; a fourth glue overflow groove is arranged between the second glue overflow groove and the bipolar plate edge; one end of the fourth glue overflow groove is communicated with the second glue overflow groove, and the other end is provided with a glue overflow opening; the first glue overflow groove, the third glue overflow groove, the second glue overflow groove and the fourth glue overflow groove form a buffer extension path; when the excess glue passes through the glue overflow grooves, the flow resistance is increased, and the glue discharge speed is significantly slowed down. This avoids the rapid flow of the glue out of the bipolar plate, reduces the pollution of the glue overflow to the production environment and other components, and reduces the production interruption and material waste caused by cleaning the glue overflow.

This utility model discloses a tempering device for fixture parts, belonging to the field of fixture parts manufacturing technology. It includes a tempering furnace body with a protective door hinged to one side. The furnace body has multiple storage mechanisms within its inner cavity, dividing the furnace cavity into several independent spatial areas. This allows for the orderly placement of different types of fixture parts, avoiding stacking and significantly improving the utilization rate of the furnace space. Simultaneously, the storage mechanisms, in conjunction with a top transmission mechanism, drive the fan blades to rotate, promoting the circulation of hot air within the furnace and reducing uneven heating caused by workpiece stacking. This ensures that the hot airflow evenly contacts the workpieces in each area. Furthermore, the categorized storage design facilitates quick workpiece retrieval by operators, reducing time waste, and the uniform heating effect reduces workpiece rework rates, further optimizing the operation process and improving production efficiency.

The utility model relates to the technical field of coating die precision control, specifically relates to an actuating mechanism and coating machine. An actuating mechanism, include: integrated seat body, displacement piece, be located integrated seat body one side, displacement sensor, displacement sensor be located integrated seat body, displacement sensor is equipped with elastic probe, elastic probe with displacement piece is connected, elastic probe with displacement piece same side setting, displacement piece is driven ground to move towards or away from integrated seat body, displacement probe follows displacement piece movement, displacement sensor senses displacement piece's movement distance. The utility model provides an actuating mechanism and coating machine to solve in traditional actuating mechanism, multiple installation error's superposition leads to the overall assembly error of screw rod and displacement sensor between big, influence the whole mechanism's assembly precision problem.

The utility model provides a kind of screw cap device, to improve the technical problem of traditional screw cap operation. The device includes support frame, and be located on the pressing assembly of support frame, connecting frame and positioning assembly;Among them, connecting frame is vertically slidably connected in support frame, pressing assembly is located above connecting frame, for controlling connecting frame moves along vertical direction;Rotary module is rotatably connected to the lower end of connecting frame, positioning assembly is located below rotary module, for placing product;Rotary module lower end is provided with the connecting groove matched with product cover body part, can drive cover body part relative to product main body part rotation, to realize screw cap operation, especially suitable for intelligent power failure indicator and other products that need to protect cover body.

The utility model discloses an adjustable supporting arm structure for an electric tricycle, and relates to the technical field of tricycle supporting arms, the adjustable supporting arm structure comprises a fixing arm, the outer wall of the fixing arm is fixedly connected with a connecting structure, the inner wall of the connecting structure is slidably connected with a fixing bolt, and the outer wall of the fixing bolt is in threaded connection with a locking nut. A telescopic cavity is slidably connected to the outer wall of the fixed arm, a telescopic arm is slidably connected to the outer wall of the telescopic cavity, and an adjusting structure is fixedly connected to the outer wall of the telescopic arm. And long-distance adjustment depends on sliding adjustment of the telescopic arm and the telescopic cavity, and angle adjustment depends on cooperation of various structures, so that different vehicle types can be adapted, the assembly problem is effectively solved, the assembly speed is increased, the rework rate is reduced, and the production process is optimized.

The present application relates to the technical field of aluminum strip electroplating, and particularly relates to a continuous extrusion and electroplating integrated preparation method for aluminum strip. The present application is characterized by the following aspects: a full-process continuous process design is adopted, including continuous extrusion, continuous electroplating pretreatment, continuous electroplating of composite coating, and continuous post-plating treatment; a differentiated process connection scheme is set for 1 series and 6 series aluminum alloy substrates; a nickel functional layer deposition thickness quantitative regulation and control model is adopted, in which a turbulence correction coefficient is introduced; and a copper-nickel composite coating structure, segmented current density control, plating solution temperature matching concentration matching regulation and control technology are adopted. The present application realizes integrated continuous production of aluminum strip forming and surface modification, greatly improves the adhesion, thickness uniformity and corrosion resistance of the coating, and balances the production efficiency and product performance, and can be widely applied to the preparation of conductive aluminum strips in high-end fields such as new energy vehicles.

The application relates to a water-rich complex geological highway tunnel excavation and primary support construction method and system, and belongs to the technical field of tunnel construction, which comprises the following steps: a geological prediction and pretreatment step: obtaining multi-modal geological exploration data, performing geological modeling and intelligent analysis based on the multi-modal geological exploration data, generating a water gushing grade prediction result, and performing stratum grouting reinforcement based on the water gushing grade prediction result; a dynamic excavation and support step: performing tunnel excavation in the area after grouting reinforcement, dynamically determining current excavation parameters and support parameters of the primary support structure based on surrounding rock disturbance monitoring data collected in real time during the excavation process, and constructing the primary support structure based on the support parameters; an intelligent monitoring and feedback step: performing multi-parameter monitoring on the primary support structure, and performing closed-loop feedback adjustment on the grouting strategy of the stratum grouting reinforcement and the support parameters of the primary support structure based on the monitoring result. The application has the beneficial effects of improving the safety, progress and quality of construction.

The application discloses an axle head and axle housing body assembly press-fitting tool, which comprises a right axle head point fixing tool and a left axle head point fixing tool, the right axle head point fixing tool comprises a first bottom plate, a first V-shaped block rotatably installed on the first bottom plate, a first front adjusting block and a first rear adjusting block installed on the first V-shaped block; the left axle head point fixing tool comprises a second bottom plate, a second V-shaped block rotatably installed on the second bottom plate, a second front adjusting block and a second rear adjusting block installed on the second V-shaped block; an angle adjusting cylinder is connected to the first V-shaped block, and the angle adjusting cylinder is suitable for adjusting the angle of the first V-shaped block relative to the first bottom plate. The V-shaped block is matched with the front and rear staggered adjusting blocks (the first front adjusting block, the first rear adjusting block, the second front adjusting block and the second rear adjusting block), so that the axle head can be kept stable during the press-fitting process, the deviation or inclination is reduced, and the assembly coaxial degree and precision are improved.

The application discloses a CAD track turnout multi-stage intelligent linkage connection and adjustment method, comprising the following steps: S1, integrating structured parameters of various turnout types, generating a turnout basic parameter library, and generating an association mapping table recording the logical relationship between turnouts; S2, automatically calling the turnout basic parameter library, calculating the optimal turnout angle and endpoint coordinates, and automatically generating a connecting line; S3, when the position or angle of the reference turnout is adjusted, based on the association mapping table, the adjustment information is transmitted to all associated secondary turnouts, and the secondary turnouts and their connecting lines are driven to be synchronously adapted; S4, real-time collection of the adjusted data, combination of the turnout parameter threshold and the association mapping relationship, recalculation of the optimal connecting path, and generation of a new connecting line. The application can greatly shorten the time consumption of single-group turnout docking, solve the problems of line mispositioning and fracture, guarantee engineering safety, reduce the dependence on the experience of designers, greatly shorten the design cycle and reduce the rework rate.

The utility model discloses a kind of laser devices convenient to patch package, including support, laser chip, metal pipe cap, the support includes concave table, metallized pad and annular step part, metal heat sink is fixedly embedded in the concave table, the laser chip is fixed on the metal heat sink upper surface by eutectic solder, the metal pipe cap is the tubular structure of one end opening one end airtight, the edge of the opening end of the metal pipe cap is sealed and fixed with the annular step part, the problems such as high cost, low production efficiency, poor fault tolerance, heavy weight of traditional TO packaging equipment are solved by structural innovation, under the premise of guaranteeing the performance of laser device, production economy and process adaptability are significantly improved.

This invention relates to the field of capacitor aging discharge technology, and more particularly to a discharge device for secondary aging of aluminum electrolytic capacitors. The device includes a discharge cabinet, a fixed base fixedly connected inside the cabinet, a fixed sleeve fixedly connected to the fixed base, a turntable rotatably connected through the fixed sleeve, two symmetrically rotatably connected flip frames on the turntable, a capacitor positioning adjustment mechanism fixedly connected to the flip frames, and two symmetrically rotatably connected push-pull mechanisms on the turntable. Each push-pull mechanism has a capacitor pin correction mechanism. By using the capacitor pin correction mechanism, the pins can be automatically corrected, ensuring precise alignment with circuit board holes, reducing assembly errors caused by pin tilting or bending, and improving insertion accuracy. The capacitor pin correction mechanism effectively improves production efficiency and capacitor performance, ensuring stable and reliable operation of the capacitor in the secondary aging discharge device.

This invention relates to the field of PCB manufacturing technology, specifically disclosing a PCB drilling method based on differentiated processing of the same hole diameter. The method includes the following steps: acquiring hole position information and integrating measured data from the board surface for condition prediction; assigning virtual tool diameter codes to different hole positions according to the evaluation results and coordinating manufacturability for high-risk hole positions; using codes to drive two-layer parameter decision-making, generating Pareto optimal parameters through multi-objective optimization; during processing, decoupling thermo-mechanical-vibration interaction errors in real time through a multi-source sensor fusion model and generating multi-dimensional compensation instructions; and finally, achieving self-learning directional fine-tuning and iterative closed-loop of processing parameters through the linkage analysis of online hole wall quality assessment and tool life prediction. This invention achieves comprehensive intelligent processing from inter-hole differentiated parameter matching to dynamic precision feedback control within the hole, significantly improving hole wall quality and processing efficiency while effectively reducing overall processing costs, and has good industrial promotion value.

This invention discloses a BIM-based architectural engineering design method and system, relating to the field of architectural engineering design technology. The method includes: extracting the geometric features of each component of the target building, including bounding box coordinates, center point, dimensions, and principal direction vectors; calculating the average bounding box side length based on the geometric features; dividing the building space into grid cells and marking dense grid cells; offsetting components within the dense grid cells along three-dimensional directions to generate extended feature vectors; performing principal component rotation and multiple orthogonal projection on the extended feature vectors to generate a two-dimensional hash index; mapping components to index buckets and neighboring buckets; combining components pairwise within the index buckets; analyzing three-dimensional overlapping intervals to identify conflicting component pairs; statistically analyzing the overlapping volume of conflicting component pairs and their coefficient of variation; and marking component pairs with abnormal volumes to form conflict marker objects for BIM-driven component position adjustment. This solves the problem of missed detection of conflict candidate pairs in highly overlapping areas of the building space.

The invention discloses a fabricated building component guiding and positioning device. The device comprises a bottom plate; the mounting seat is slidably provided with a bearing plate used for bearing the light wallboard, and the mounting seat is connected with the bottom plate through a lifting assembly and used for adjusting the height between the bearing plate and the ground; and the adjusting assembly is arranged on the mounting seat and is connected with the bearing plate. The height between the bearing plate and the ground is adjusted through the lifting assembly, the position of the bearing plate in the length direction is adjusted through the adjusting assembly, the light wallboard can be accurately aligned to the preset position of the ground, manual visual inspection adjustment is converted into mechanical accurate positioning, and the problems of hole deviation, steel bar dislocation and the like are effectively solved. The light wallboard can be rapidly and accurately in place at a time, repeated hoisting adjustment is avoided, the rework rate is reduced, the construction rhythm of a fabricated building is guaranteed, the wallboard position adjustment is more labor-saving and convenient, the labor cost is reduced, and the construction safety is improved.

The utility model relates to a filter box for reducing the pouring and drying amount of aluminum alloy melt, and belongs to the technical field of melt filtering. The filter box comprises a filter box body; a filling block is arranged in the filter box body and is suspended in the center of the interior of the filter box body; a lifting lug is arranged at the top of the filling block; a winch is arranged on a wall body above the filter box body; a hook is fixed at one end of the bottom of a cable in the winch; the lifting lug is detachably connected with the hook; a filter plate is arranged at the lower part of the filter box body; and a liquid outlet is formed below the filter plate. The filling block is additionally arranged in the aluminum alloy melt filter box provided by the utility model and is placed in the center of the filter box, so that the constant temperature of each part of the flowing aluminum liquid can be effectively ensured, the flow speed in the filter box is stable, the drying amount is reduced, the consumption of the aluminum alloy solution is reduced, and meanwhile, the production efficiency and the stability in the casting process are improved; and defects are reduced, so that the rework rate and the rejection rate are reduced.

The embodiment of the application discloses a heterogeneous texture vamp generation method based on an artificial intelligence content model, an end-to-end intelligent generation of design parameters to a vamp image is realized through an encoder and a diffusion model, a traditional design period of several weeks is shortened to minutes, and design efficiency is significantly improved; through a built-in process constraint module, weaving rules are pre-verified, non-weavable structures are avoided from the source, and the rework rate is greatly reduced; through a scoring module, aesthetic and process feasibility are quantitatively scored in two dimensions, intelligent optimization of a scheme is realized, and the problem of relying on artificial subjective screening is solved; meanwhile, with editable design parameters as input, a series of schemes with unified and differentiated styles can be quickly generated by adjusting keywords only, and the series design efficiency is greatly improved. In summary, the application realizes the technical effects of process constraint preposition, intelligent generation and multi-dimensional optimization, breaks through the information fault of design to production, and realizes end-to-end efficient cooperation.

The utility model discloses a spraying device for a casting part surface treatment process, and belongs to the technical field of surface coating. The material collecting device comprises a material collecting platform, a rotary positioning table and a clamp, wherein a material collecting box is arranged on the material collecting platform; the rotary positioning tables are arranged in a row and comprise rotary tables, first sliding grooves are formed in the rotary tables, T-shaped sliding blocks matched with the first sliding grooves are arranged on the first sliding grooves, clamping blocks are arranged at the bottoms of the rotary tables, and the clamping blocks are arranged on the material collecting box; the number of the clamps is two, each clamp comprises a supporting column, a first hole is formed in the upper portion of the supporting column, a rotating rod is arranged on the first hole, a clamping hand is arranged at one end of the rotating rod, the bottom of one supporting column is arranged on the T-shaped sliding block, and the other clamping hand is arranged on the rotary table. Through the structural design of the rotary positioning table and the clamp, accurate positioning and constant-speed rotation of a casting are achieved, the multi-axis adjustable spray gun array is matched, it is guaranteed that a coating is evenly covered, the device is suitable for corners, grooves and other areas difficult to spray of the casting of a complex structure, and the thickness deviation of the coating is reduced.

The utility model relates to the technical field of Chinese high-speed railway catenary equipment, and discloses a portable preassembling table for a high-speed railway catenary positioning device, which comprises a positioning fixing table and a double-lug sleeve fixing table which are matched for use, the positioning fixing table comprises a positioning pipe fixing piece and a positioner fixing piece, and the positioning pipe fixing piece comprises two positioning pipe fixing grooves which are oppositely arranged and a positioning pipe fixing clamp arranged between the two positioning pipe fixing grooves. The positioner fixing piece comprises two positioner fixing grooves and a positioner fixing clamp, the two positioner fixing grooves are oppositely arranged, the positioner fixing clamp is arranged between the two positioner fixing grooves, and the distance between the groove bottom of the positioning pipe fixing groove and the first fixing bottom plate is smaller than the distance between the groove bottom of the positioner fixing groove and the first fixing bottom plate. The central axes of the positioning pipe and the positioner in the horizontal direction are located on the same horizontal plane and are parallel to the first fixing bottom plate. The device is accurate in positioning.

The invention relates to the technical field of shoe materials, in particular to a polyurethane component connecting process which comprises the following steps: S1, manufacturing at least one male mold with a convex shape; s2, mounting the male mold on an injection molding machine, pouring thermoplastic elastomer TPE / TPR particles into the injection molding machine, heating and melting the thermoplastic elastomer TPE / TPR particles by the injection molding machine, then pouring the thermoplastic elastomer TPE / TPR particles into the male mold at high pressure, manufacturing a mold with a cavity matched with the convex shape of the male mold, and producing the mold in a large scale; s3, the rubber material in the molten state is poured into a cavity of at least one mold, redundant rubber material is removed through scraping, and the rubber material is a polyurethane rubber material or a two-component polyurethane rubber material; s4, placing a mold and waiting for the glue material to be cured and shaped to obtain a glue block; s5, blanking a hot melt adhesive film with a shape similar to that of the adhesive block; s6, the base cloth, the blanked hot melt adhesive film and the adhesive block are subjected to hot pressing combination; and S7, blanking the combined base cloth, and cutting off redundant base cloth to obtain a finished product.

The utility model relates to the technical field of steel bending, in particular to a multi-angle adjustable steel bending device which is characterized in that one end of a rotating rod is sleeved with a bending plate, one side of the bending plate is fixedly connected with a side plate, one side of the side plate is fixedly connected with a limiting frame, and one side of the bottom of a base is fixedly connected with a second motor through a bolt; the bottom end of the rotating rod penetrates through the base to be in transmission connection with an output shaft of the second motor, one side of the top of the base is slidably connected with an annular gear, and one side of the base is fixedly connected with a fixing plate. The bending angle is accurately adjusted and effectively limited, the phenomenon of excessive bending or angle deviation caused by out-of-control of the angle is avoided, and the machining precision is remarkably improved.

The application discloses a kind of construction hoist standard section rack automatic positioning installation combination mechanism, more specifically related to machine tool combined machining technical field, including machine tool table, two side tables, two lifting strips and end checking assembly, the upper surface of machine tool table is fixed with two side tables;Two lifting strips are installed between two side tables;End checking assembly is installed on the side of lifting strip.The application has double checking of rack and standard section end, and multi-dimensional comprehensive checking of hole position, tooth groove and side surface position in the middle of rack and standard section, effectively avoids rework caused by end size inconsistency, reduces rework rate in later processing, reduces rework installation cost of machine tool combined machining, thereby solve the high error rate of installation combination, directly lead to rework rate in later processing greatly increases, greatly improve the combined machining cost of machine tool.