160results about How to "Realize automatic feeding" patented technology

The invention relates to the technical field of badge assembly, and discloses an automatic badge assembly line which comprises a lower cover feeding mechanism, an upper cover feeding assembly mechanism and an upper and lower cover press fitting module. The upper cover feeding and assembling mechanism comprises an upper cover feeding mechanism, an upper cover transferring mechanism and an accessory feeding mechanism; the upper and lower cover press-fitting module comprises a lower cover transferring mechanism, a press-fitting mechanism and a discharging mechanism. The press-fitting mechanism comprises a rotating body, a press-fitting driving assembly and a press-fitting mold, and through the arrangement of the lower cover feeding mechanism, the upper cover feeding and assembling mechanism and the upper and lower cover press-fitting module, automation of the whole process of feeding of upper and lower covers of badges, assembling of the upper covers, press-fitting of the upper and lower covers and detection of products is achieved; the badge assembling production operation can be completed without manual participation, the labor cost is reduced, the badge assembling production efficiency is improved, and the stability of the product quality is better.

The utility model provides an automatic feeding mechanism for a square magnetic sheet array, and belongs to the technical field of magnetic product machining. The split type material frame comprising the first frame body and the second frame body is arranged on the machine frame, the first frame body is provided with the material falling opening, the second frame body is provided with the multiple partition plates and the compensation plates blocking the material falling opening, meanwhile, the material pushing assembly is arranged at the end, provided with the material falling opening, of the material frame, and one end of the material conveying assembly extends to the position below the material falling opening. When the square magnetic sheets are stacked, the second frame body can be combined to the first frame body firstly, and the cavity of the first frame body is regularly separated by the partition plates of the second frame body, so that the square magnetic sheets can be stacked conveniently to form a plurality of rows of magnetic sheet groups, matrix arrangement of the square magnetic sheets is realized, and the disordered problem that the square magnetic sheets topple over and the like is prevented; subsequently, after the second frame body is detached, the multiple rows of magnetic sheet sets are gathered to the material pushing assembly, the square magnetic sheets of each row of magnetic sheet sets are sequentially pushed out of the material falling opening through the material pushing assembly and then fall onto the feeding assembly, and the automatic feeding requirement is met.

The utility model discloses high-speed pipe cutting equipment which comprises a pipe cutting assembly, the pipe cutting assembly can cut a suction pipe belt at equal intervals, and the pipe cutting assembly comprises a second power device; the second pipe winding barrel is driven by a second power device to rotate in the circumferential direction of the second pipe winding barrel, the outer surface of the second pipe winding barrel is provided with multiple sets of arc grooves capable of partially containing the suction pipe, the arc grooves extend in the axis direction of the roller, and the multiple sets of arc grooves are arranged in the circumferential direction of the second pipe winding barrel at equal angles; and the cutting blade is driven by a second power device to do reciprocating motion so as to cut the suction pipe belt driven by the second pipe winding barrel. According to the straw belt cutting device, the straw is clamped in the arc groove of the second pipe winding roller, so that the rotating second pipe winding roller drives the straw belt to move in the rotating direction of the second pipe winding roller, meanwhile, the cutting blade reciprocates to cut the straw belt, automatic cutting of the straw belt is achieved, the straw belt is cut into single straws, and working efficiency is improved.

The temperature limiter feeding mechanism comprises a feeding unit and a distributing unit, the feeding unit comprises a vibration assembly and a guide rail assembly, the guide rail assembly is arranged between the vibration assembly and the distributing unit, and the vibration assembly drives temperature limiters to vibrate so as to achieve automatic arrangement feeding. The guide rail assembly adjusts the temperature limiters to be in a unified posture and conveys the temperature limiters to the material distributing unit, the material distributing unit separates the temperature limiters from the material supplying unit, and material distributing is achieved. The vibration assembly is arranged to drive the temperature limiters to move, automatic feeding is achieved, the temperature limiters are further limited and conveyed through the guide rail assembly, the temperature limiters are arranged in order, the material distribution unit takes the temperature limiters for material distribution, automatic feeding of the temperature limiters is achieved, manual temperature limiter taking operation is replaced, and therefore labor force is released, the labor intensity of workers is relieved, and the production efficiency is improved. The feeding efficiency is improved, the product competitiveness is improved, and the automation degree of a production line is improved.

The utility model relates to the technical field of drilling machines, in particular to an automatic feeding and discharging drilling machine which comprises a turnover device, a laser drilling machine, a first feeding and discharging unit and a second feeding and discharging unit. Each of the first feeding and discharging unit and the second feeding and discharging unit comprises a feeding and discharging tray device, a feeding and discharging device, a first manipulator and a second manipulator, the first manipulator is movably arranged above the feeding and discharging device and the feeding and discharging tray device, and the second manipulator is movably arranged above the feeding and discharging tray device and the laser drilling machine; the turnover device is located on one side of the feeding and discharging device of the second feeding and discharging unit, and a third mechanical arm is movably arranged above the turnover device and the corresponding feeding and discharging device. According to the double-sided drilling machine, automatic feeding, drilling and discharging of materials are achieved, the materials can be turned over through the turning device and then drilled, double-sided drilling of the materials is achieved, the materials subjected to double-sided drilling can be stacked, and production efficiency is greatly improved.

The present invention discloses a bonding device for photovoltaic solar panel processing, and relates to the technical field of solar photovoltaic panels. The present invention includes a workbench, and a pressing device is arranged on the top surface of the workbench; the pressing device includes a lifting cylinder, a pressure cover, a distance adjusting block and a bolt, the lifting cylinder is fixed to the bottom surface of the inner wall of the operation chamber on the top surface of the workbench, the pressure cover is fixed to the telescopic end, and rectangular grooves are provided at both ends of the bottom surface of the pressure cover, and the distance adjusting block is slidably installed on the inner wall of the rectangular groove. The present invention makes the lifting cylinder, the pressure cover, the distance adjusting block and the bolt cooperate through the setting of the pressing device, and the bolt is adjusted to control the protruding distance of the distance adjusting block by using the bolt, and the downward pressing contact surface of the pressure cover is controlled to be displaced as needed, and when the battery cell can be pasted to the back plate, the downward pressing contact surface of the pressure cover is controlled to rise as much as possible to avoid damage and breakage of the battery cell during the downward pressing process, thereby improving the yield rate.

The invention discloses a circuit breaker production line, and belongs to the technical field of low-voltage apparatuses, and the circuit breaker production line comprises a first station and a second station which are arranged at an interval in the vertical direction; an injection molding device is arranged at the first station, N first conveying lines and N assembling devices are arranged at the second station, the first conveying lines and the assembling devices are arranged in a one-to-one correspondence mode, and M first spiral conveying lines are arranged between the first station and the second station; the injection molding equipment is used for injection molding to form a shell, the first spiral conveying line is used for conveying the shell to at least one first conveying line, the first conveying lines are used for conveying the shell to the corresponding assembling equipment, and the assembling equipment is used for assembling a thermal system and a magnetic system in the shell. According to the circuit breaker production line provided by the invention, automatic feeding of a plurality of assembling devices can be realized, the situation of insufficient feeding of shells is effectively prevented, the production efficiency is improved, the structure of the whole circuit breaker production line is compact, and the space utilization rate is effectively improved.

This utility model discloses a multifunctional poultry farming platform with cleaning and feeding functions, including a feed storage box. A first electric telescopic rod is fixedly connected to the front of the feed storage box, and a first bracket is fixedly connected to the telescopic end of the first electric telescopic rod. A second electric telescopic rod is fixedly connected to the rear end of the bottom of the first bracket, and a second bracket is fixedly connected to the telescopic end of the second electric telescopic rod. A first motor is fixedly connected to the left end of the top of the second bracket, and a fourth bracket is fixedly connected to the output shaft of the first motor. A hollow cylinder is movably connected to the right end of the inner surface of the fourth bracket. This utility model controls the retraction of a third electric telescopic rod to release the baffle plate from blocking the feed outlet. Then, controlling the extension of the fourth electric telescopic rod and the retraction of the first electric telescopic rod allows the scraper to level the feed, thereby achieving automatic feeding.

The utility model relates to the technical field of lead screw blank machining, in particular to a lead screw blank cutting machine with an automatic feeding function, which comprises a cutting platform and two mounting seats at the bottom of the cutting platform, a driving rotating roller is rotatably connected between the two mounting seats, and a plurality of driven rotating rollers are rotatably connected between the two mounting seats. The outer wall of the driving rotating roller is sleeved with a conveying belt, the outer wall of the driving rotating roller is sleeved with a metal net conveying belt, a scraping plate is fixedly connected between the two mounting bases, a collecting box is slidably connected between the two mounting bases, and a cutting machine is fixedly connected to the side, away from the first sliding groove, of a connecting plate. The conveying belt conveys a lead screw blank to be cut to the position between the two sets of arc-shaped clamping pieces, the two sets of arc-shaped clamping pieces clamp and fix the lead screw blank to be cut, metal chippings generated by cutting fall onto the metal net conveying belt on the lower portion through the square groove, and the metal chippings generated by cutting are conveyed while automatic feeding of the lead screw blank is achieved.

This invention provides a self-limiting conveying device for processing automotive flywheels, comprising a base plate, a wheel, a push block, a positioning block, a positioning mechanism, an output component, and an input component. The operator places the flywheel to be processed on the input component. Driven by a belt, the flywheel enters the channel. The operator rotates the rocker counterclockwise, causing the wheel to rotate, which in turn causes the push block to propel the flywheel forward to the processing station and then back. During the return process, the positioning block swings and positions the flywheel at the processing station. At this point, the flywheel is in a fixed state, and the processing equipment begins operation. After processing is completed, the operator continues to rotate the rocker, causing the positioning block to retract, and the flywheel to be in a free state. The push block then propels newly arrived unprocessed flywheels forward and pushes out the processed flywheel. The pushed-out flywheel enters the output component and is transported to the next station. This device solves the problem of low work efficiency in traditional flywheel processing where the operator must both move and position the flywheel.

This utility model discloses an auxiliary feeding device for a press, including a base plate, a positioning plate fixedly connected to the top of the base plate, a vertical plate fixedly connected to the inner side of the positioning plate, a second motor fixedly installed on the outer side of the vertical plate, a second threaded rod fixedly connected to the output end of the second motor, and movable plates threadedly connected to both sides of the surface of the second threaded rod. This utility model drives the second threaded rod to rotate via the second motor, causing the movable plates to move along the second threaded rod. A limiting plate on the inner side of the movable plate can position and clamp the material, ensuring the accuracy of the material's position during feeding and processing, preventing displacement of the material under the action of the press, and improving processing precision. A first motor drives the first threaded rod to rotate, and a sliding plate threadedly connected to the first threaded rod moves along the sliding rod. A feeding pusher plate at the top of the sliding plate pushes the material towards the pressure mold, achieving automatic feeding, reducing manual operation, and improving work efficiency.

The utility model relates to paperboard processing technical field discloses corrugated paperboard crease processing frock, including base one, the base one inside is provided with the discharge groove, the base one side wall is fixedly connected with base two, the base two between sliding connection has the slide, the slide lower surface fixedly connected with the guide post, the guide post side wall is equipped with the spring, the spring one end fixedly connected with the fixed column, the spring other end fixedly connects in the slide side wall, the guide post sliding connection is in the fixed column inside, the fixed column bottom fixed connection bottom plate, the bottom plate upper surface fixedly connected with hydraulic pressure rod, hydraulic pressure rod output fixedly connected with the link block. In the utility model, when intermittent conveying, paperboard is placed in the base one inside, and starts motor one and drives the link column rotation, so that the belt makes the push block move, and the paperboard is conveyed to the inside of base two, can realize automatic feeding, improve production efficiency, reduce production cost.

The utility model relates to an automatic deburring equipment, including feed channel, pushover device, processing channel, deburring device, the feed channel and processing channel all are provided with the material groove of adaptation with material bottom bulge, pushover device sets up between the feed channel and processing channel, deburring device sets up in processing channel one side, the feed channel and processing channel set up on two parallel straight lines of a inclined plane, pushover device includes mobile seat and pushover cylinder, pushover cylinder is connected with mobile seat and promotes mobile seat and moves between the end of feed channel and the top of processing channel, mobile seat also is provided with material groove. The utility model discloses the feed channel and processing channel are inclined to set up, and the feed channel and processing channel are limited to material through material groove, and through the dead weight of material lets material along with material groove from top to bottom movement, realizes the automatic feeding of non - power.

The present application belongs to the technical field of nodular cast iron production, and particularly relates to a vibrating ebullition cooler for producing nodular cast iron well lid, which comprises a hot air generating device located at the lower layer and a nodular cast iron well lid clamping device located at the upper layer; the nodular cast iron well lid clamping device comprises a rotating plate, a rotating shaft, an arc-shaped sealing cover, a mechanical clamp jaw mounting seat, a mechanical clamp jaw, a steam guide pipe, a gas passing slip ring and a condenser connecting pipe; the rotating shaft is installed at the center of the rotating plate; the two ends of the rotating plate are provided with the arc-shaped sealing covers; the inner side of the arc-shaped sealing cover is provided with the mechanical clamp jaw through the mechanical clamp jaw mounting seat; one end of the rotating shaft is connected with the output shaft of a servo motor, and the other end is connected with the condenser connecting pipe through the gas passing slip ring. The device has a reasonable structure design, and the components are cooperated with each other, so that the automatic feeding and discharging of the nodular cast iron well lid can be realized, and the continuous batch drying treatment requirement can be met; meanwhile, the blowing pipe and the steam guide pipe have Tesla pipe cavities, so that the steam reverse flow situation can be effectively prevented.

The application relates to the field of pipe processing equipment, and discloses a pipe cutting machine which comprises a rack, a first sliding rail, a pushing assembly, a chuck assembly, a pipe cutting assembly and a blanking plate. The first sliding rail, the pipe cutting assembly and the blanking plate are respectively installed on the rack, the first sliding rail extends along the length direction of the pipe, the pushing assembly is in sliding connection with the first sliding rail, the chuck assembly is in sliding connection with the first sliding rail, the pipe cutting assembly is used for cutting the pipe, the chuck assembly is located between the blanking plate and the pipe cutting assembly, and the blanking plate is obliquely arranged and used for receiving the tail of the pipe. The pipe cutting machine disclosed by the application separates the finished pipe after cutting from the tail, the tail falls to the obliquely arranged blanking plate under the action of gravity, and slides out of the equipment along the blanking plate, so that the remaining tail is prevented from being randomly scattered on the ground.

This invention discloses a high-speed tube cutting device and method, including a tube cutting assembly that can cut a suction strip at equal intervals. The tube cutting assembly includes a second power unit; a second tube roll, which is driven by the second power unit to rotate circumferentially. An arcuate groove, capable of partially accommodating the suction strip, is formed on the outer surface of the second tube roll, extending along the axis of the roll. The arcuate groove has an array of arrays arranged at equal angles along the circumference of the second tube roll; and a cutting blade, driven by the second power unit to reciprocate, to cut the suction strip driven by the second tube roll. This invention achieves automatic cutting of the suction strip by securing the suction strip within the arcuate groove of the second tube roll, causing the rotating second tube roll to move the suction strip along its rotation direction. Simultaneously, the cutting blade reciprocates, cutting the suction strip, thus dividing the suction strip into individual suction strips and improving work efficiency.

The utility model is suitable for the technical field of steel pipe cutting, and provides a steel pipe cutting device convenient to position, which comprises an operation table, a cutting main body and a positioning mechanism, the positioning mechanism comprises a limiting table, and a through hole is formed in the middle of the limiting table; the assembling seat slides above the operation table; the hydraulic rods are symmetrically arranged on the inner side of the matching seat; clamping plates are arranged at the output ends of the two hydraulic rods; according to the utility model, by arranging the positioning mechanism, the precise fixation of the pipe body and one end of the steel pipe is realized, and the displacement is avoided in the subsequent cutting process; by means of the positioning mode, cutting accuracy and working efficiency are remarkably improved, and operation risks and errors are reduced. In addition, the two clamping plates with the adjustable distance can be suitable for machining and fixing of steel pipes with different sizes; according to the design, the machining requirements of steel pipes of different specifications are considered, and the use range and flexibility of the device are remarkably improved; and various different cutting requirements are met.

The utility model discloses a kind of press quenching tool for synchronous device sliding sleeve with positioning boss, belong to the technical field of synchronous device sliding tooth cover, press quenching tool includes press quenching core shaft and feeding mechanism;The end of press quenching core shaft is provided with guide cone surface, the side surface of press quenching core shaft is formed with core shaft working surface, and the core shaft working surface is provided with several positioning boss grooves, and the other end of press quenching core shaft is provided with quenching oil circuit;Feeding mechanism includes feeding cylinder, and the lateral wall of feeding cylinder is provided with several positioning grooves, and the bottom of feeding cylinder is connected with mounting column;Feeding mechanism is installed in the feeding carousel of press quenching equipment by mounting column, and press quenching core shaft is installed in the press quenching station of press quenching equipment;Positioning groove is correspondingly arranged with positioning boss groove, so that the positioning boss of synchronous device sliding sleeve with positioning boss is transferred from feeding mechanism to press quenching core shaft, and correspondingly falls into positioning boss groove.The utility model can guarantee the effect of controlling thermal distortion of part in quenching process, realize automatic press quenching, and guarantee production efficiency.

The invention discloses a coal sample division agent feeding and discharging structure, and belongs to the technical field of coal sample detection auxiliary equipment.The coal sample division agent feeding and discharging structure comprises a feeding pipe, an outer frame, a coal sample division storage module, an adjusting air cylinder, a material discarding module and a collecting barrel; according to the laser burning ash content detection device disclosed by the invention, a coal sample downwards enters the coal sample division storage module through the feeding pipe by virtue of the miniaturized feeding, discharging and division device, and the coal sample division receiving hopper is horizontally separated outwards and enters the existing laser burning ash content detection device by adjusting the air cylinder; and transferring is carried out through an internal mechanism. And the coal sample division receiving hopper resets to guide the residual coal samples back to the filling division hopper, and the discharging air cylinder drives the connecting rod to loosen the gate, so that the coal sample waste materials of the batch penetrate through the collecting pipeline to enter the collecting barrel. The automatic feeding, splitting and discarding operation of the coal sample can be realized, and the coal sample can be quickly, effectively and automatically provided for a measuring position.

The utility model discloses a mixed type feed additive crushing and mixing device, and relates to the technical field of feed additive treatment. The device comprises a mixing box body and a crushing bin, the crushing bin is fixedly arranged at the upper end part of the mixing box body, and a storage hopper is fixedly arranged on the upper end surface of the crushing bin; according to the utility model, the feeding mechanism is arranged, a half gear in the feeding mechanism is intermittently matched with a driven gear, the feeding groove is driven to correspond to the opening in the bottom of the storage hopper, and the feeding groove is driven to vertically face downwards, so that a feed additive in the storage hopper automatically falls into the temporary storage bin through the feeding groove in the period; and the feed additive in the temporary storage bin automatically falls into the crushing bin through the feeding groove to be crushed by the crushing mechanism, so that automatic feeding in the crushing processing process of the feed additive is conveniently realized, the convenience of feeding operation is effectively improved, and the operation intensity of workers is reduced.

The utility model provides a battery crushing device and a battery recycling system. A feeding channel of the battery crushing device is used for receiving a to-be-crushed material; the crushing cavity communicates with the feeding channel, and the feeding channel is obliquely arranged relative to the crushing cavity; the crushing cutter is arranged in the crushing cavity; the material pressing piece is movably arranged in the feeding channel or the crushing cavity. On the basis, the battery crushing device has high feeding efficiency and abnormal feeding efficiency, and the working efficiency of the battery crushing device is higher.

This invention provides an automatic feeding and cutting device and method for lucky bamboo. The device includes a feeding component, a vision detection component, a cutting component, and a controller. The feeding component includes a rotating disk, a fixed cam, a feeding tube, and a connecting frame. The device uses the rotating disk to drive the feeding tube to rotate. During the feeding process, the fixed cam causes the feeding tube to be tilted, allowing the lucky bamboo in the feeding tube to be conveyed to the output end of the feeding tube under the action of gravity. The vision detection component determines the cutting position by detecting the position of the first node at the end of the lucky bamboo at the head-removing station. The cutting component at the head-removing station can cut the lucky bamboo at the cutting position to remove excess bamboo ends. The cutting component at the segmenting station can cut the lucky bamboo again to cut bamboo segments of a fixed length. This device can realize automatic feeding and automatic segment cutting of lucky bamboo with high segment cutting efficiency.

The application discloses a bearing seat assembly device and assembly method of an air compressor, which comprises a rack, a plurality of trays, a conveying line and a seat body feeding mechanism. An oil seal feeding mechanism, a filter screen feeding mechanism, a bearing feeding mechanism and a plurality of pin feeding and pressing mechanisms are sequentially arranged on one side of the conveying line. The seat body feeding mechanism is used for transferring the bearing seat to the tray on the conveying line. The oil seal feeding mechanism is used for providing the oil seal for the bearing seat in the tray. The filter screen feeding mechanism is used for providing the filter screen for the bearing seat in the tray. The bearing feeding mechanism is used for providing the bearing for the seat body in the tray. The pin feeding and pressing mechanism is used for assembling the pin on the bearing seat in the tray. The various stations of the whole device are connected through the conveying line, the integration degree between the various mechanisms is high, the assembly of the oil seal and the bearing seat, the filter screen and the bearing seat, the bearing and the bearing seat and the bearing seat and the pin is automatic operation, and the assembly precision and efficiency can be ensured.

The utility model relates to the technical field of indentation for carton processing solves the technical problem of long and tedious processing process, especially relates to: a kind of indentation device for packaging carton processing, including as the push support frame of supporting base, indentation support frame is placed in the one side of push support frame for supporting carton, push support frame and indentation support frame top are provided with the feeding mechanism for pushing the carton being conveyed, push support frame and indentation support frame between are provided with the conveying mechanism for conveying carton, indentation support frame is provided with the indentation mechanism for being used as carton indentation. The utility model is because the setting of feeding mechanism, can cooperate with conveying mechanism, push the carton being conveyed to indentation support frame, to be able to realize the automatic feeding of carton, also can avoid the situation that carton directly on conveying belt because of insufficient supporting force and cannot continue indentation operation to carry out, and still can according to the size of carton accurately push carton to indentation mechanism below, to make the position of indentation on carton more accurate.

The present application relates to the technical field of tire production equipment. Aiming at the problem of inconvenient feeding of the cold material extruder of the tire tread winding processing production line, a tire tread winding processing production line is proposed, including a cold material extruder, a molding machine, a drum cooler, a conveying device and a winding main machine; the cold material extruder includes a feeding funnel; the feeding funnel is also provided with an automatic feeding mechanism, the feeding mechanism includes a storage component, a grabbing component and an auxiliary conveying component; the storage component includes two storage parts for storing rubber material strips; the grabbing component is used to grab the end of the rubber material strip located on the storage part and move it to the feeding funnel; the auxiliary conveying component is used to assist in conveying the rubber material strip into the feeding funnel. The present application has the effect of improving the feeding efficiency of the cold material extruder.

The invention, which belongs to the technical field of motor processing, discloses a terminal standardized feeding device capable of automatically breaking a carrier tape, comprising a frame, and a terminal feeding assembly, a terminal transfer assembly, a first terminal carrier tape breaking assembly, a second terminal carrier tape breaking assembly and a mechanical arm carrying mechanism which are installed on the frame. The first terminal carrier tape breaking assembly comprises a direction adjusting overturning table, a terminal positioning assembly and a terminal reciprocating breaking assembly. Through cooperation of a terminal feeding assembly, a terminal transferring assembly, a direction adjusting overturning table, a terminal positioning assembly, a terminal reciprocating breaking assembly, a second terminal carrier tape breaking assembly, a mechanical arm carrying mechanism and a terminal positioning jig, automatic feeding of iron core terminals and automatic finishing operation of two extending ends of the iron core terminals can be achieved. Standardized feeding requirements of terminals required by the motor iron core are met, and the machining efficiency and the machining precision are effectively improved.

The invention discloses a feeding device for child toy car accessory machining, and belongs to the technical field of toy car accessory machining. The feeding device for child toy car accessory machining comprises a mounting frame, the top and the bottom of the mounting frame are each provided with an opening a, and the two ends of the mounting frame are symmetrically and movably provided with pushing assemblies; the pushing assembly comprises sliding seats which are symmetrically and movably arranged at the two ends of the mounting frame, clamping assemblies are movably arranged on the sides, close to each other, of the two corresponding sliding seats, a moving assembly connected with the clamping assemblies is connected between the two sliding seats, and a rotating assembly connected with the moving assembly is connected between the two sliding seats; the two clamping assemblies conduct clamping and centering positioning treatment on the two ends and the corresponding side walls of the workpiece to be machined in the mode that the two clamping assemblies get close to each other, shaft accessories of different specifications of child toy cars can be clamped conveniently, and the problem that when the shaft accessories of the child toy cars of different specifications are machined, a whole set of jig needs to be replaced is solved.