29results about How to "Realize automatic flipping" patented technology

The invention provides stamping equipment for automobile engine oil pan production, and belongs to the technical field of oil pan stamping equipment. Which comprises a stamping equipment body and is characterized in that a lower die and an upper die are installed on the stamping equipment body, a first supporting frame is installed on one side of the stamping equipment body, and a second supporting frame is installed on the other side of the stamping equipment body; an automobile oil pan material plate is placed on the top of the first supporting frame. By arranging the auxiliary feeding mechanism and the auxiliary discharging mechanism, the auxiliary feeding mechanism can be utilized, workers do not need to make direct contact with an automobile oil pan material plate, the automobile oil pan material plate can be rapidly and stably transferred to the position between the lower die and the upper die, and accurate alignment can be achieved after transferring, and the automobile oil pan material plate can be reliably placed on the top of the lower die; and compared with a traditional manual handheld plate feeding mode, the feeding device is safer and more reliable.

The utility model discloses a kind of printing device of packaging box convenient to position, it is related to packaging box printing technical field.The utility model includes: box, recess is set in left and right side wall in box, driving assembly is connected in recess, driving assembly is connected with connecting block, connecting block is connected with fixed plate by adjusting assembly;Driving assembly includes the rotation gear that is rotatably connected with recess, driving gear is meshed and connected below rotation gear, motor is connected with driving gear;Top end is connected with printing assembly in box.The utility model is driven by setting driving assembly, the meshing transmission of rotation gear and driving gear in driving assembly, cooperate the rotation design of connecting block, realize packaging box single-side printing after automatic turning, without manual disassembly and reinstallation, greatly shorten process link time, compared with traditional printing mode, greatly improve production efficiency.

The application provides a smart polishing equipment workbench, which comprises a table body; a protective cover is installed on the top of the table body, and a polishing mechanism is arranged in the protective cover; an entrance and exit is formed in one side of the protective cover, a door body is arranged at the entrance and exit, and an observation window is arranged on the door body; a blow strip cover is arranged on one side of the observation window in the protective cover, one side of the blow strip cover is provided with a blow port for blowing and cleaning the observation window; a translation mechanism is connected to the top of the blow strip cover; a turnover position adjusting mechanism and a gas supply mechanism are connected to the bottom of the blow strip cover; the turnover position adjusting mechanism is used for driving the blow strip cover to turn over, so that the blowing direction of the blow strip cover is consistent with the movement direction of the blow strip cover. By arranging the movable blow strip cover on the inner side of the observation window, the observation window is cleaned by airflow in a non-contact manner, dust and debris attached to the observation window can be effectively removed, the operator can clearly observe the polishing working condition in the protective cover, and dust blocking affects work monitoring can be avoided.

This utility model relates to the field of thermal spraying technology and discloses an adjustable welding spraying device, including a base shell, a first motor, a rotary table, a top plate, a first cylinder, a lifting plate, a first electric slide rail, a second electric slide rail, a spray gun body, a clamping and flipping mechanism, and an angle adjustment mechanism. The first motor is fixed inside the base shell, and the upper end of the output shaft of the first motor is fixed on the lower surface of the rotary table. The guide post is fixed between the base shell and the top plate. This adjustable welding spraying device clamps materials by controlling the operation of the first or second electric cylinder through a program. It is suitable for materials of different shapes, saves time and effort, and improves the clamping efficiency of materials. In addition, it can realize automatic flipping of materials, so that the materials can be sprayed from all directions, saving time and effort and improving the spraying efficiency of materials.

The present application relates to tray processing technical field, and discloses a tray nailing equipment, which relates to tray processing technical field.The equipment is provided with a nailing station and two assembly stations, and comprises two tray conveying lines, a jig driving assembly and a nailing device.The tray conveying line comprises a tray jig and a motion control assembly, and the motion control assembly controls the tray jig to have a first path, a turnover path, a turnover return path and a second path.Through the unique turnover path, the tray is automatically turned over in the movement process.The jig driving assembly drives the tray jigs of the two tray conveying lines to move simultaneously, so that they are alternately moved to the nailing station.The present application realizes the automatic turnover of the tray in the conveying process and the double-station alternate nailing, does not need manual turnover of the tray, can effectively reduce the labor intensity of the staff, eliminates the waiting time of the nailing device, and can significantly improve the production efficiency of the tray.

The utility model relates to an automatic feeding and conveying device for niobium ingot production raw materials. The automatic feeding and conveying device comprises a supporting frame composed of a base, a vertical plate and a top frame, and a material carrying box connected to the supporting frame in a sliding mode. A lifting driving assembly is arranged on the vertical plate to drive the loading box to lift, a feeding port of the loading box is movably connected with a flashboard, and automatic lifting opening is achieved through a reset spring and a guide column; the flashboard is hinged to the material guide plate, and the material guide plate is automatically unfolded when the flashboard moves through the transmission assembly. The stroke control mechanism is integrated in a guide hole of the vertical plate, and the lifting stroke of the material loading box is accurately controlled through cooperation of a fixed block, a sliding block, a buffer spring and a contact. According to the device, automatic feeding of niobium ingot production raw materials is achieved, manual intervention is reduced through a mechanical linkage structure, the feeding efficiency and accuracy are improved, raw material scattering is effectively avoided, the production safety and stability are improved, and the device is suitable for continuous and intelligent operation scenes of niobium ingot production.

The utility model belongs to the technical field of welding tools, and discloses a turnover welding tool with buffers and double locking devices, which comprises a base, four telescopic cylinders are arranged at the top end of the base, a lifting table is arranged at the telescopic ends of the four telescopic cylinders, and check blocks are arranged on two sides of the top end of the lifting table; the overturning assembly is pushed to move upwards through cooperation of a telescopic air cylinder, a lifting table, a check block and a guide groove, so that the height of an automobile part is increased, an electric push rod drives an overturning block and a clamping assembly to rotate through a transmission frame, a guide block, two transmission frames, two racks and two gears, automatic overturning of the automobile part is achieved, the requirement for welding of the front face and the back face is met, and the welding efficiency is improved. And the rotating angle of the automobile part is adjusted by controlling the extending distance of the telescopic end of the electric push rod, the multi-angle welding requirement is met, and practicability is enhanced.

The utility model discloses an automatic carton cigarette turnover device which comprises a conveyor, a turnover assembly is installed on the conveyor, and the turnover assembly comprises two vertical plates, two linear modules, a supporting frame, an installation plate, two contact plates, a rotating disc, a clamping air cylinder, a turnover motor, a driving gear and an outer gear ring. The two linear modules are symmetrically installed on a machine frame of the conveyor through the two vertical plates. The clamping air cylinders push the contact plates, the two contact plates cooperate to stably clamp cigarettes, meanwhile, the linear module drives the supporting frame to move upwards, the cigarettes are separated from a conveying belt of the conveyor, at the moment, the overturning motor drives the driving gear to rotate, and overturning operation on the cigarettes is achieved; through cooperation of the driving gear, the linear module, the clamping air cylinder, the overturning motor and other structures, automatic overturning of cigarettes is achieved, the automation degree of cigarette production is improved, and automatic detection is achieved.

The utility model provides an indexable multi-station gear deburring device, and relates to the technical field of gear machining, the indexable multi-station gear deburring device comprises a machining table, symmetrically distributed supporting legs are fixedly mounted on the two sides of the bottom of the machining table, a supporting plate is fixedly mounted on the supporting legs, and a rotating shaft is rotatably mounted at the top of the supporting plate; the top end of the rotating shaft penetrates through the machining table and extends to the position above the top of the machining table, and a controller is fixedly installed on one supporting leg. The gear is accurately grabbed through the cooperative action of the clamping plate and the two-way lead screw, automatic face turning is achieved through 180-degree rotation of the vertical rail, and then the gear is sent back to the clamping groove for machining of the other face. Automatic continuous operation of gear double-face machining is achieved, process interruption and repeated positioning errors caused by manual face turning are thoroughly eliminated, and the machining efficiency, precision and production line continuity are remarkably improved.

This utility model relates to the field of high-density fiberboard (HDF) inspection technology, specifically to an HDF defect inspection device. It includes a machine tool with a flipping mechanism in its center. The flipping mechanism comprises two fixed frames, with a rotating shaft rotatably mounted in the center of each frame. Limiting guide grooves are provided at both ends of the rotating shaft's center. Turntables are slidably engaged at both ends of the rotating shaft's center. Multiple slots are evenly distributed around the center of each of the two turntables, and a sleeve is fixedly installed at one end of each turntable's center. This utility model allows for flexible adjustment of the turntable spacing through the meshing transmission of a handwheel, gears, and gear plates, adapting to HDF boards of different widths. Simultaneously, the multiple slots on the turntables, combined with their rotation, enable automatic flipping of the HDF boards, completing the inspection process for both sides of the HDF board in one operation, significantly improving inspection efficiency.

The utility model relates to a steel casting continuous casting machine, which belongs to the technical field of casting equipment and comprises a machining table, a fixing frame, a waste cleaning component and a cooling component are arranged at the top of the machining table, and a rotating mechanism is arranged at the bottom of the machining table. The beneficial effects of the utility model are that through the arrangement of the rotating mechanism, when in use, a switch of the motor is turned on, so that the rotating shaft drives the rotating seat to rotate, and then the rotating shaft rotates by taking the vertical center line of the rotating seat as the circle center; when a gear is meshed with a first tooth holder, the casting groove can be turned over from top to bottom, then a casting mold falls into a collecting groove to be collected in a centralized mode, automatic discharging of a casting piece is facilitated, and the working efficiency of the device is greatly improved.

The application discloses a filter bag inner frame pre-assembly machine, which comprises a positioning and bag opening device, a turnover device, a gantry and a material taking and clamping device which is installed on the gantry and can move along three axes of XYZ. The mouth of the filter bag is opened through the positioning and bag opening device, the filter bag is rotated through the turnover device so that the mouth faces upward, and the inner frame is clamped and pressed on the inner side of the mouth of the filter bag through the material taking and clamping device. The application can realize automatic grabbing, automatic positioning, automatic opening and automatic turnover of the filter bag, and can realize automatic material taking of the inner frame and automatic clamping and pressing of the inner frame and the mouth of the filter bag, so that the pre-assembly of the filter bag and the inner frame is realized, manual work is reduced, the automation degree and efficiency of the above process are improved, and the pace of automation of the whole filter assembly process is accelerated.

This invention provides a laser welding device for processing plate heat exchangers, belonging to the technical field of laser welding machines. The laser welding device for processing plate heat exchangers includes a main unit housing. A first support frame is fixedly mounted on the top surface of the main unit housing. A first guide rail frame is provided on one side of the first support frame. A second guide rail frame is provided on one side of the first guide rail frame. A laser welding head is mounted on one side of the second guide rail frame. Two third guide rail frames are mounted on the top surface of the main unit housing. A flipping assembly is provided on the top surface of the main unit housing. This invention, by setting up the flipping assembly, can achieve the purpose of automatically flipping the plates, which is safer than existing manual flipping and can greatly improve welding efficiency, thus greatly improving the overall practicality of the device. Furthermore, the flipping process relies solely on the device's own power, without an external power source, further enhancing the overall practicality of the device.

The invention provides PCB circuit board processing equipment, and relates to the technical field of circuit board manufacturing, the PCB circuit board processing equipment comprises a feeding assembly and a main body assembly, one side of the main body assembly is provided with the feeding assembly, the feeding assembly comprises an equipment rack, and the top of the equipment rack is provided with a top plate; a belt conveying assembly is fixedly installed on the surface of the top of the top plate, the main body assembly comprises a machine box, a rotating disc is installed on the surface of the top of the machine box, a servo motor is installed in the top end of the machine box, and an output shaft of the servo motor is in transmission connection with the bottom of the rotating disc through a hinge. According to the full-automatic coating machine, manual intervention is not needed in the whole process from automatic feeding to coating, drying, overturning and material collecting, the labor cost is greatly reduced, and personal errors are reduced; according to the invention, multiple stations are driven to synchronously work through the rotating disc, all procedures are circulated in parallel, and the production efficiency of single equipment is improved by more than 30% compared with that of traditional dispersion equipment.

The utility model belongs to glass cleaning technical field especially relates to a kind of cleaning device for glass cover plate, including frame, support plate, conveying belt, conveying roller and first motor etc., two support plates are installed in the upper portion of frame and are distributed side by side, two conveying rollers are rotationally arranged between two support plates and are distributed side by side, the conveying belt of porous structure is rotationally arranged between the outside of two conveying rollers, its two sides are in rotational contact with two support plates respectively, the right part front side of one of support plates is installed with first motor, its output shaft is towards back, and is fixedly connected with one end of one of conveying rollers by passing one of support plates. By setting turnover subassembly, the automatic turnover of glass cover plate can be realized, so that both sides of glass cover plate can be fully cleaned, effectively solve the problem that traditional cleaning device can only be single-sided cleaning, need manual intervention, improve cleaning effect and product quality, ensure that both sides of glass cover plate can reach high standard cleanliness.

The application provides a shaped ham transfer conveying equipment and relates to the technical field of conveying equipment. The equipment comprises two groups of conveying belt bodies, supporting rollers and fixing boxes. The inside of each supporting roller is provided with a positioning table. The surface of each positioning table is fixedly installed with a convex cone ring. The outside of each convex cone ring is provided with a friction strip. Each connecting assembly comprises a supporting seat, a sealing side plate, a shaft cylinder and a drainage cylinder. The surface of each drainage cylinder is fixedly installed with a plurality of pressure bearing frames. The inside of each pressure bearing frame is slidingly installed with an upper bearing plate. The surface of each upper bearing plate is fixedly installed with a base plate. The surface of each base plate is provided with a flexible lining. The sealing side plate is rubbed with the friction strip in the conveying belt body. The flexible lining is rotated around the shaft cylinder under resistance. The cleaning liquid is continuously conveyed to the flow collecting box through the water inlet pipe and the second expansion joint sleeve and is uniformly sprayed from the nozzle body, so that the flexible lining is automatically turned over and accurately cleaned.

The invention relates to the technical field of thin-wall bearing press-fitting, in particular to an automatic stainless steel thin-wall bearing sealing ring press-fitting machine which comprises a base, and a bearing feeding assembly used for conveying thin-wall bearings in the middle at equal intervals and two sealing ring feeding assemblies used for positioning and feeding sealing rings are arranged at the top of the base. The double-station press-fitting assembly is matched with the corresponding sealing ring feeding assembly to grab and press-fit the sealing rings; the bearing feeding assembly can achieve automatic centering and equal-interval conveying of bearings with different diameters, the sealing ring feeding assembly can accurately position sealing rings with different sizes and maintain the axis uniformity, and a special tool does not need to be replaced. The double-station press-fitting assembly can accurately grab sealing rings of multiple specifications, lossless press-fitting is achieved through secondary positioning and arc extrusion, press-fitting of the sealing rings on the two sides is synchronously completed in combination with the automatic turn-over function, and the equipment universality, the press-fitting efficiency and the assembling quality are remarkably improved.

The utility model discloses an efficient shot blasting semi-automatic production line which comprises a double-channel shot blasting machine, one end of the double-channel shot blasting machine is connected with a magnetic turnover machine, the lower portion of the magnetic turnover machine is connected with an S-bend conveyor, a first conveying driving mechanism is arranged below one side of the S-bend conveyor, and a second conveying driving mechanism is arranged below the other side of the S-bend conveyor. One end of the double-channel shot blasting machine is connected with the oil immersion machine, the other end of the double-channel shot blasting machine is connected with the feeding conveyor, the feeding conveyor is connected with the oil immersion machine, a lifting machine is arranged at the top of the double-channel shot blasting machine, the double-channel shot blasting machine comprises a shot blasting machine rack, and transmission rollers are arranged in the two sides of the upper portion of the shot blasting machine rack respectively. According to the utility model, the two-channel shot blasting machine, the magnetic turnover machine, the S-bend conveyor, the feeding conveyor, the oil immersion machine and the elevator are matched to realize semi-automatic shot blasting production of workpieces, so that the intelligence of shot blasting of the workpieces is improved, and manpower is saved.

The utility model discloses an aircraft with a tilt rotor structure, which comprises an aircraft, four tilt rotors and a supporting mechanism are arranged at the top of the aircraft, the supporting mechanism comprises four fixing blocks fixedly connected to the front side and the rear side of the bottom of the aircraft, the inner walls of the fixing blocks are movably connected with round rods through bearings, and the round rods are connected with the tilt rotors through bearings. A supporting frame is fixedly connected to the surface of the round rod, pulleys are installed on the left side and the right side of the bottom of the supporting frame, the supporting frame can turn over backwards through the round rod, and a driving mechanism is arranged at the bottom of the aircraft. When the aircraft is used, under the action of the supporting mechanism, the driving mechanism and the hanging mechanism, the bottom of the aircraft can hang goods and the supporting frame can be automatically folded, and the supporting mechanism and the driving mechanism share one power source, so that energy waste is reduced, and inconvenience in use caused by the fact that the aircraft cannot hang goods and the supporting frame is prone to hooking obstacles is avoided; therefore, the device has the advantage of being convenient to use.

The utility model relates to dust collection and treatment equipment after sand blasting of a large titanium plate, and belongs to the technical field of sand blasting processes. The equipment comprises a base platform, the top of the base platform is provided with a plurality of vertical collecting channels and a transverse centralizing channel, and the collecting channels are communicated with the centralizing channel. A U-shaped sliding frame is arranged in the collecting channel in a sliding mode, and a plurality of scraping plates are rotationally connected to the sliding frame. A plurality of groups of regulation and control parts are further arranged in the collecting channel and comprise vertical rods and baffles, and the baffles are mounted on the vertical rods through torsional springs. And a spiral conveying blade is arranged in the centralized channel. After dust falls into the collecting channel through the grid net, the air cylinder drives the U-shaped sliding frame to drive the scraping plate to reciprocate. The scraper pushes the dust to move towards the concentration channel when being pushed, and the baffle is stirred to rotate to give way; and during resetting, the baffle is limited and cannot rotate reversely, and the scraping plate overturns upwards to cross the pushed dust, so that one-way pushing is realized. And dust is uniformly discharged by the spiral conveying blade after entering the centralizing channel. The equipment can automatically and continuously collect dust, avoids residues, and improves the collection efficiency.

The utility model discloses a heating bar material transfer into extruding machine device for aluminum profile machining belongs to aluminum profile machining technical field. Including shearing machine and the workstation of connecting installation on shearing machine, and the workstation is rotationally connected and installed with first skip, and the workstation downside rotationally connected and installed with first telescopic link, and first telescopic link stretches out the end and is rotationally connected and installed with first skip downside, still including the base of shearing machine one side, and the base one side is equipped with slide rail, and the other side is connected and installed with second telescopic link, and second telescopic link telescopic end and slide rail slidingly connected, and the both sides of base top are equipped with the sliding slot, and the sliding slot is slidably connected and installed with the moving frame, and the moving frame downside rotationally connected and installed with the third telescopic link of second telescopic link telescopic end rotationally connected and installed, and the moving frame upside rotationally connected and installed with second skip, and second skip is equipped with automatic turnover mechanism. The device realizes the automatic transfer of hot aluminum bar through the transfer between skip, avoids the danger of manual operation, and reduces the labor intensity.

The utility model relates to a drying treatment device technical field, especially to a kind of for konjak seed ball's drying treatment device.Its technical scheme includes mounting bracket, motor one, support net and motor two, the support net is arranged in mounting bracket inside, the support net one end is provided with equidistant distribution's connecting rope, the mounting bracket front end is provided with motor one, the motor one output is provided with pivot, the support net one end is provided with equidistant distribution and is connected with the connecting rope of pivot, the mounting bracket upper end is provided with symmetric distribution's side guide rail and upper rail, the side guide rail and upper rail outer wall are all slidably sleeved with slider one, the slider one upper end is all provided with the waterproof membrane of one end and the connection of mounting bracket.This utility model is suspended by support net and can be moved in small amplitude position, drive the konjak seed ball of drying to tumble, in rainy weather, timely to the konjak seed ball that is not received is shielded protection, suitable for large-scale konjak seed ball's drying, reduce the possibility of being contaminated and damaged in drying process.

The utility model discloses a bar code printer overturning support which comprises a support body, the support body is of an integrated flat plate structure, and the support body is divided into a left area, a middle area and a right area. Through holes are formed in the left area, the middle area and the right area, and cross rods are arranged on the through holes. The side, extending in the arrangement direction of the left area, the middle area and the right area, of the support body is a long side, and the two sides adjacent to the long side are short sides. According to the utility model, the plurality of cross bars are arranged, and the label medium is wound on the cross bars, so that the double-sided or single-sided printing of the label can be realized at the same time.

The utility model discloses a kind of PC raw material container unloading equipment, belong to PC granular raw material conveying technical field, including substrate, the upper end right end of substrate is fixedly installed with belt conveyor;The upper end left side of substrate is fixedly installed with lifting plate;The upper end middle part of substrate is installed with adjustable collection mechanism;The adjustable collection mechanism includes driving assembly and movable assembly;Movable assembly is also installed with follow-up material-rolling mechanism;Driving assembly is also installed with auxiliary door opening mechanism.By the above-mentioned mode, the device can collect materials in a larger range and push them to the belt conveyor, avoiding material accumulation, and the follow-up material-rolling mechanism can also break up the PC raw materials that have formed clumps during transportation, improving the practicality of the device.

The invention provides a tilting gear for finishing a steel wire coil. The tilting gear comprises a conveying mechanism, a tilting mechanism and a transferring mechanism. Compared with the prior art, the tilting gear for finishing the steel wire coil, provided by the invention, has the advantages that the linear conveying part of the conveying mechanism can horizontally and stably convey the steel wire coil to the tilting mechanism from a previous link of a finishing procedure; the lifting part of the steel overturning mechanism can automatically receive the steel wire coil conveyed by the linear conveying part and drive the lifting part to overturn towards the outside of the linear conveying part under the driving effect, automatic overturning of the steel wire coil is achieved, and manual auxiliary overturning is not needed. The overturned steel wire coil can be automatically arranged in a sleeving mode through the hanging part of the transferring mechanism, automatic transferring of the overturned steel wire coil is achieved, and tedious operation in the manual transferring process is avoided. In the whole process, workers do not need to make direct contact with the heavy steel wire coil, the labor intensity of operators is reduced, the overall efficiency of steel turnover operation is greatly improved, and the defect that in the prior art, the steel turnover efficiency is low is overcome.

This utility model provides an axle box disassembly and force-breaking flipping device, which cooperates with a hoist to disassemble axle boxes located on both sides of a wheelset. It includes: a support mechanism, a rotating mechanism, and a force-breaking disassembly mechanism; the support mechanism is connected to the hoist; the rotating mechanism is connected to the support mechanism and can rotate relative to the support mechanism; the force-breaking disassembly mechanism is mounted on the rotating mechanism and is used to clamp the axle box and disassemble it from the wheelset. The rotating mechanism includes: a drive motor, a first gear, a fixed shaft, a second gear, and a second support frame; the drive motor is mounted on the support mechanism, and its output end has a rotating shaft; the first gear is fixed to the rotating shaft; one end of the fixed shaft is fixed to the support mechanism and extends in the same direction as the rotating shaft; the second gear is sleeved on the fixed shaft; and the second gear meshes with the first gear; the second support frame is fixed to one side surface of the second gear, and its bottom end is fixed to the force-breaking disassembly mechanism.

The utility model belongs to the technical field of insert production equipment, and discloses an insert processing device for a die-casting die, which comprises a table top, the left side and the right side of the top end of the table top are respectively and fixedly connected with a supporting plate and a connecting plate, and a movable shaft is movably arranged in the supporting plate. The right end of the movable shaft penetrates through the supporting plate and extends out of the right side of the supporting plate. By arranging the gear, the first motor, the connecting block and the toothed plate, an operator starts the first motor, a rotating shaft and a long rod can rotate, so that a moving rod pulls the connecting block and the toothed plate to move forwards, and the outer surface of the toothed plate can be meshed with the outer surface of the gear at the moment; and then the gear drives the whole first pneumatic cylinder, the two clamping blocks and the movable shaft to rotate, so that automatic overturning can be achieved, the operation process that an operator needs to relieve the fixing effect first and then conduct manual overturning on the first pneumatic cylinder is avoided, and convenience is brought to use of the operator.

The utility model provides flat grinding equipment. The flat grinding equipment comprises a feeding mechanism, a flat grinding mechanism, a transferring mechanism and an overturning mechanism. The feeding mechanism is provided with a jig, the jig is used for bearing a product, and the to-be-ground surface of the product is exposed to the top side of the jig; the flat grinding mechanism is used for grinding the to-be-ground surface of the product; the transferring mechanism is used for transferring the jig; the turnover mechanism comprises a turnover driving part, a turnover platform, a first assembly and a second assembly, the turnover driving part is connected with the turnover platform, the turnover platform is provided with a through hole, the through hole is provided with a first opening and a second opening which are opposite, the first assembly is arranged in the first opening, and the second assembly is arranged in the second opening. On one hand, the jig can be automatically turned over. And on the other hand, the risk that the product falls off from the jig can be reduced.