87results about How to "Save man hours" patented technology

The utility model discloses a prefabricated diaphragm wall type assembled subway entrance and exit structure which comprises side wall structures, a prefabricated top plate and a prefabricated bottom plate are arranged between the side wall structures of the entrance and exit, the prefabricated top plate and the prefabricated bottom plate are both connected with the side wall structures through ultrahigh concrete, and the side wall structures are formed by integrating an enclosure structure and a main body structure. The side wall structure comprises prefabricated underground diaphragm walls, and underground diaphragm wall inter-amplitude connecting assemblies are arranged between the adjacent prefabricated underground diaphragm walls. The foundation pit support structure, the waterproof curtain and the side wall of the main body structure are integrated, so that working hours and manufacturing cost are saved. According to the utility model, the connection scheme of the waterstop strip bags, the C / T inter-width connectors and the UHPC concrete wet joints is adopted between the prefabricated underground diaphragm walls, so that the waterproof and guiding effects are achieved. According to the utility model, the longitudinal tensioning connection scheme of the inter-width concave-convex tenons, the elastic sealing gaskets and the prestressed steel bars is adopted between the prefabricated plate widths, so that not only can shearing force be effectively transmitted, but also a water stopping effect can be achieved.

The utility model discloses a device and a system for manufacturing a self-adhesive coating motor iron core. The system comprises a feeding unit, a pressing unit, a moving unit, a heating unit, a cooling unit and a discharging unit. And in the moving unit, the pressing mechanism is used for pushing and lowering the laminated iron core, so that the laminated iron core moves from the feeding port of the feeding pipeline to the discharging port of the feeding pipeline, the heating module and the cooling module are arranged outside the feeding pipeline, and meanwhile, the heating module is located above the cooling module, so that the laminated iron core can be cooled, and the laminated iron core can be cooled. And the laminated iron core is produced through vertical continuous thermocuring, so that the operation time is shortened.

The embodiment of the utility model discloses a clamping tool for a left frame and a right frame of a liquid cooling cabinet, which comprises a first clamping mechanism, a second clamping mechanism and a third clamping mechanism, the first clamping mechanism comprises a support, a first clamping cylinder, a mounting seat, a second clamping cylinder and a third clamping cylinder, the support is used for supporting a cross rod on the frame, the first clamping cylinder is used for clamping and fixing the cross rod, and the mounting seat is used for mounting the cross rod on the frame; the second clamping air cylinder is fixedly installed on the installation base and used for clamping and fixing the wiring plate, and the third clamping air cylinder is used for clamping and fixing the second supporting rod. And the second clamping mechanism is used for fixing the first supporting rod. According to the clamping tool for the left frame and the right frame of the liquid cooling cabinet, through accurate positioning and multi-point clamping, the deformation risk in the welding process is reduced, the welding size consistency and the structural stability of the frames are improved, meanwhile, the production efficiency and the assembly quality are improved, and the follow-up correction working time is shortened.

The invention provides integrated packaging equipment before lamination of a solar photovoltaic panel, which comprises a main conveying channel formed in the X-axis direction on a machine table and used for arranging a plurality of composite material processing areas at intervals, a bottom glass feeding platform and a back glass feeding platform are assembled on the main conveying channel in a sliding manner, and the main conveying channel is connected with a glue film operation area; a bottom glass driver is arranged between the main conveying channel and the bottom glass feeding platform and used for driving bottom glass to move in and out of the composite material machining area. The adhesive film operation area is provided with an adhesive film driver which is used for carrying the adaptive adhesive film to be compounded on the bottom glass along the X-axis direction; the back glass feeding platform is provided with a back glass driver used for driving the back glass to be attached to the bottom glass, so that the configuration space of equipment is saved, and the machining time is shortened.

The utility model discloses a quick replacement mechanism for a small insert of a plastic mold, and relates to the technical field of plastic molds. The mold comprises an injection molding base, an injection molding mold is installed on the injection molding base, an installation groove is formed in the injection molding mold, an insert is movably arranged in the installation groove, through grooves which are communicated are formed between the injection molding mold and the injection molding base, a positioning groove and an ejection groove are formed in one side of the injection molding base, and a positioning rod is arranged in the through groove. A mounting seat is mounted at the end, close to the insert, of the positioning rod, the insert is mounted on the mounting seat, a positioning hole is formed in the positioning rod, an insertion rod is mounted in the positioning groove, one end of the insertion rod can be inserted into the positioning hole, and the mounting portion of the insertion rod can be replaced from the positioning groove to an ejection groove. According to the utility model, the insert replacement time is greatly shortened, the disassembly and assembly working hours are saved, the working efficiency of production operation is remarkably improved, and a powerful guarantee is provided for quick mold replacement and continuous and efficient operation of injection molding production.

The utility model relates to a kind of speaker box wire outlet structure, comprising: loudspeaker;Silica gel cover, its sleeve is equipped in the outside of loudspeaker;Wire rod, one end is connected with loudspeaker, and the other end of wire rod is threaded through silica gel cover, the outer wall of wire rod and silica gel cover contact is wrapped with sponge, the sponge is clamped on silica gel cover, and sponge is used for balancing the air pressure between loudspeaker and silica gel cover inner and outer cavities.The utility model's speaker box wire outlet structure, wire rod is wrapped with sponge, wire outlet mode clamped in wire outlet position, both can fix wire rod, and can reduce the process of glue fixing wire rod, make assembly more simple and fast, and have the effect of deflation and balancing air pressure in speaker box, satisfy the structure requirement of customer while satisfying the sound quality demand.

The utility model discloses a tool box cover installation structure, tool box cover body and electric motor car relates to electric motor car technical field, and tool box cover installation structure includes screw joint structure, and one end of screw joint structure tool box cover is connected with the inside of tool box cover body through screw joint structure, and the other end of tool box cover is connected with the inside of tool box cover body through the combination structure of setting up the combination structure of screw joint structure and card joint structure, has reduced the bolt fixed point, has reduced the installation cost of tool box cover, and the cost of tool box cover body and electric motor car can further reduce, has the effect of reducing cost and increasing benefit.

The utility model discloses an adjustable unit type transverse floating plate structure, and relates to the technical field of transverse floating plates, the transverse floating plate structure comprises a mounting frame and a movable floating plate, the movable floating plate is movably clamped outside the mounting frame, the rear end of the movable floating plate is open, the mounting frame is mounted on the outer side surface of a wall body, and the movable floating plate is mounted on the outer side surface of the wall body. A window is mounted in the wall body, and the mounting frame is located above the window; the first electric push rod is mounted in the mounting frame, a first through groove is formed in the surface of the front end of the mounting frame and communicates with the interior of the mounting frame, the electric push rod is arranged in the mounting frame, and a telescopic rod at the front end of the electric push rod penetrates through the mounting frame to be connected with the movable floating plate; therefore, the movable floating plate can be driven by the electric push rod to stretch and retract, the stretching and retracting position of the movable floating plate can be adjusted according to actual needs, and the multifunctional requirement is met.

This utility model relates to a spliced ​​stator winding connection structure, comprising: a stator core; a stator wire frame disposed within the stator core and forming a plurality of stator slots; coils disposed within the stator slots, each coil having a wire start and a wire end; a front PCB board disposed at the front end of the stator core; and a rear PCB board disposed at the rear end of the stator core; one of the wire start and the wire end of each coil is connected to the front PCB board and the other is connected to the rear PCB board to form a complete winding, and the side of the rear PCB board facing away from the front PCB board is provided with a plurality of first terminals.

The utility model provides a battery pack, comprising: a box body comprising a plurality of side box plates, and the plurality of side box plates enclose to form an accommodating space; the battery cell group module is arranged in the accommodating space; the battery cell group module comprises a plurality of battery cell stacking bodies, a plurality of connecting beams and two side plate groups; the plurality of battery cell stacking bodies are arranged along a first direction, and each battery cell stacking body comprises a plurality of battery cells stacked along a second direction; connecting beams are arranged at the two ends, distributed in the first direction, of each battery cell stacking body; the two side plate groups are located on the two sides, distributed in the second direction, of the battery cell stacking body, and the two side plate groups are connected through the connecting beam and clamp the battery cell stacking body; and in the second direction, the distance between the two side plate sets is adjustable, so that the two side plate sets can be matched with the corresponding side box plates for limiting. In the battery pack provided by the invention, the side plate groups and the side box plates are matched for limiting, so that the material cost of the battery pack is reduced, and the assembly process of the battery pack is simplified.

The application provides a gas turbine sleeve shaft nut dismounting method, comprising the following steps: S1, installing a low vortex rotor support disc; S2, installing a front casing hoisting disc; S3, disassembling a low pressure casing; S4, installing a rotor auxiliary support plate; S5, installing a low pressure part sleeve limiting block; S6, disassembling a bolt; S7, disassembling a low pressure assembly; S8, cutting a sleeve shaft nut; and S9, installing a transition section adapter disc. In the vertical state of the front casing of the unit, the low pressure casing is dismounted, the connecting piece of the rear shaft neck of the low pressure rotor is dismounted, the low pressure part is separated from the unit as a whole, the sleeve shaft nut is exposed from the deep rotor, the operable space is expanded, the stability is increased, the remaining components are not damaged, and the normal maintenance and inspection of the gas turbine are ensured.

The embodiment of the application discloses a misfire detection data processing method, a test device, a medium and a calibration equipment; the method adopts a preset data structure, under the engine operating condition, through activating the adaptive detection function, the engine condition and operation data are synchronously acquired by online scanning and according to the ignition phase, and then the corresponding detection threshold or calibration data is calculated online through the statistical method; the method or product of the application does not need to deliberately control the engine speed and load in the implementation or operation, each working parameter of the working condition point experienced in the engine operation process is automatically detected and analyzed, and then the misfire detection threshold data is automatically obtained; the method and product of the application can be realized by upgrading the engine control unit ECU software, so that the data acquisition process is simplified, the working hours are significantly shortened, the misfire detection threshold is obtained in real time, and the development efficiency is significantly improved.

This application provides a heat exchange module assembly and a vehicle, relating to the field of vehicle heat dissipation technology. The heat exchange module assembly provided by this application includes a radiator and a shroud. The radiator has a snap-fit ​​component, and the shroud has snap-fit ​​holes into which the snap-fit ​​component is inserted. A connecting block is provided on the radiator, located outside the shroud, and has an insertion groove facing the shroud. An insertion plate is provided on the shroud, inserted into the insertion groove. By integrating the snap-fit ​​component onto the radiator and the insertion plate onto the shroud, a two-stage fixing mechanism is formed, improving stability. The shroud can be detachably assembled onto the radiator without the need for bolts and external tools, simplifying the connection structure between the shroud and the radiator and improving the ease of assembly and disassembly.

The application discloses a new energy charging gun head automatic assembling equipment and method, which comprises a control box, an automatic assembly line machine, a carrier, an injection molding machine, a six-axis robot, a carrier taking-out device, a product shaping device and a discharging device. A rotating disc with a plurality of first positioning seats is rotatably arranged on a first rack, a plurality of storage bins, a plurality of flexible vibration discs and a plurality of material visual inspection devices are arranged on the periphery of the rotating disc, a plurality of four-axis robots are movably arranged between the rotating disc and corresponding flexible vibration discs and corresponding material visual inspection devices, a mixed assembly visual inspection device and a mixed assembly taking-out device are arranged on the first rack, the injection molding machine is arranged beside the automatic assembly line machine, and the six-axis robot, the carrier taking-out device, the product shaping device and the discharging device are sequentially arranged from front to back. The structure can realize full-automatic production and assembly of the production process of the charging gun head, machine is used to replace manual work, production efficiency is improved, and production cost is reduced.

This invention relates to the field of concrete repair robot technology, belonging to the intelligent manufacturing equipment industry, and particularly to a robot suitable for repairing shallow defects in concrete structures; it addresses the problem of poor results in manual repair of shallow concrete defects; the robot includes a cleaning mechanism connected to a robotic arm, a drive mechanism connected to the cleaning mechanism, and a drying mechanism, a detection and repair mechanism, and a coating mechanism connected to the drive mechanism; when the robotic arm drives the cleaning mechanism to move on the concrete surface, the detection and repair mechanism detects shallow defects in the concrete; when the detection and repair mechanism detects defects on the concrete surface, the drive mechanism drives the cleaning mechanism, drying mechanism, detection and repair mechanism, and coating mechanism to operate sequentially, thereby repairing the shallow defects in the concrete; this robot can automatically identify and repair concrete defects, saving labor time.

The utility model discloses a plug and a household electrical appliance. The plug comprises a plastic package housing; the circuit board is positioned in the plastic package shell; the plug pin is provided with a first end part exposed out of the plastic package shell and a second end part located in the plastic package shell, and the second end part is electrically connected with the circuit board; the cable is provided with a connecting end part which is electrically connected with the second end part of the pin; the low-pressure injection molding body wraps the circuit board, the second end part of the pin and the outer side of the connecting end part of the cable; wherein the plastic package shell wraps the outer side of the low-pressure injection molding body. The plug provided by the utility model is relatively simple in structure and relatively convenient to assemble.

By providing a system and method capable of easily grasping an abnormality that can occur in a partition wall for aseptic filling, maintenance costs of an aseptic filling device are suppressed, and productivity is helped to be improved. The partition wall abnormality detection system is provided with: an aseptic area in which discharge portions of respective filling valves are located; a non-aseptic area; a functional unit selected from at least one of a plurality of closure devices, a plurality of filling valves, and a plurality of head caps; and a medium supply portion configured to supply a detection medium for detecting a related abnormality of a partition wall included in the functional unit to the plurality of functional units. A closed space constituted by the partition wall retains the detection medium supplied by the medium supply portion in the absence of an abnormality and causes the detection medium to leak in the presence of an abnormality.

The utility model provides a multifunctional forge piece upsetting leaking disc and a forge piece forging system, and relates to the technical field of forging equipment, the multifunctional forge piece upsetting leaking disc comprises a leaking disc body, the leaking disc body is provided with a through hole structure along the axial direction, and the through hole structure is configured to allow a riser end of a steel ingot blank to extend into. The ingot body of the steel ingot blank is used for abutting against the first end face in the axial direction of the drain plate body; two arc-shaped notches are symmetrically formed in the second end face in the axial direction of the leakage disc body and used for being matched with two roll necks of a forge piece blank in a lap joint mode respectively. Compared with the prior art, the multifunctional forge piece upsetting leakage disc can meet the upsetting procedure of the forge piece and can also meet the straight bending procedure of the forge piece, the whole process is easy and convenient to operate, manufacturing of auxiliary forging tools is reduced, the working hours of equipment are reduced, the operation labor intensity of a forging worker is reduced, and the forging efficiency of the forge piece is improved.

The utility model relates to bathroom product technical field, especially a shower pipe convenient to installation, including positioning cylinder, shower pipe body and quick -witted subassembly, both ends of positioning cylinder are rotatably connected with the clamping position cylinder, each clamping position cylinder is fixedly connected with the locating plate, each locating plate is hinged with the clamping position cover, the clamping position cover and the locating plate far away hinged one end are detachably fixedly connected, the shower pipe body fixedly connected between the locating plate and the clamping position cover, both ends of shower pipe body are rotatably connected with the clamping position nut, the quick -witted subassembly sets up at one side of positioning cylinder, is used for to the position fixed of positioning cylinder. The utility model technical scheme, aims at more convenient worker to the installation of shower pipe fitting, improves the installation efficiency of pipe fitting.

The utility model provides a chip rolling machine which comprises a machine frame, a conveying belt is arranged on the machine frame, material pushing plates are arranged on the conveying belt at intervals, a waste chip guiding assembly is arranged at the discharging end of the conveying belt and comprises a recycling box, the recycling box is used for recycling cutting fluid, and a net plate inclining downwards is arranged at the upper end of the recycling box. The upper end of the net plate abuts against the material pushing plate, the lower end of the net plate is a discharging end, the discharging end is hinged to the end, away from the material pushing plate, of the recycling box, an elastic supporting piece is arranged between the lower side of the net plate and the recycling box, and a waste scrap baffle is arranged in front of the upper side of the net plate. When the scraps are discharged, residual cutting fluid is recovered, so that the loss of the cutting fluid is reduced, and meanwhile, the working hours of a production line are saved.

The utility model relates to a multi-station rotary table type cleaning machine which comprises a machine frame, five stations are arranged on the machine frame at equal intervals, and the five stations are arranged in a circular shape. The tool clamping plates are provided with a plurality of clamp assemblies which are used for placing a plurality of different spare and accessory parts respectively; the rotating device is connected with the five tool clamping plates and used for enabling the tool clamping plates to circularly pass through the five stations; the feeding device is arranged on the rack and used for conveying the spare and accessory parts to the corresponding clamp assemblies; the cleaning device is arranged on the rack and used for cleaning corresponding parts; the air blowing device is arranged on the rack and used for blowing air to the corresponding parts; the drying device is arranged on the rack and used for drying the corresponding parts; and the discharging device is arranged on the rack and used for taking away the corresponding parts. The cleaning, blowing and drying processes of spare and accessory parts are simultaneously achieved through multiple stations, automatic feeding and discharging can be achieved, and full automation is achieved.

This invention provides a split-type cold screen for an infrared detector and its assembly method. The split-type cold screen for the infrared detector includes a cold screen body and matte fins. The assembly method includes: applying a black coating to both the cold screen body and the matte fins, pre-baking them, then initially assembling the pre-baked cold screen body and the matte fins, and finally baking the pre-assembled cold screen to complete the assembly. This invention places the cold screen assembly step after pre-baking and before baking, using the bonding force of the black coating to connect the cold screen body and the matte fins. This eliminates the adhesive bonding step in the split-type cold screen assembly process, solving the problem of using adhesives to bond the cold screen body and matte fins in the split-type cold screen assembly process. This ensures good mechanical reliability of the cold screen assembly in low-temperature vibration environments and also improves the performance of the detector components and the efficiency of the cold screen assembly process.

The utility model relates to the technical field of municipal construction, concretely is a kind of granite paving joint positioning device, including cross-shaped bearing frame, joint positioning mechanism being located on bearing frame, joint positioning mechanism includes respectively being located on the two-way synchronous drive assembly of bearing frame horizontal direction side and longitudinal side, two telescopic positioning components being symmetrically located on two-way synchronous drive assembly, joint assembly being located on telescopic positioning component;Two-way synchronous drive assembly and two telescopic positioning components transmission connection drive two positioning components to each other close or far away. Through the two-way synchronous drive assembly of horizontal direction and longitudinal direction symmetry arrangement, drive two telescopic positioning components synchronous reverse movement, cooperate the scale line on bearing frame, expansion plate and joint board, solve the problem of traditional manual visual non-quantitative standard, ensure the straightness of horizontal direction, longitudinal joint and spacing consistency;Joint assembly adopts gear and rack transmission structure, realizes the trace sliding adjustment of joint board, improves positioning accuracy.

The utility model belongs to the technical field of notebook computer long foot pad production, and particularly relates to a long foot pad suction cup type taking-out jig which comprises a combination plate and a plurality of grabbing plates fixedly installed at the bottom of the combination plate, suction cups which suck long foot pads and are attached to the bottoms of the grabbing plates are installed in the grabbing plates, an upper plate is arranged above the combination plate, and a lower plate is arranged above the upper plate. A connecting plate is fixed on the upper plate, and a positioning pin is fixedly mounted at the lower end of the combined plate; the long foot pad grabbing device is installed on a mechanical arm, the grabbing plate is driven to be precisely attached to the long foot pad under the action of the mechanical arm, an air source externally connected with the external connector sucks air, the long foot pad is adsorbed to the bottom of the grabbing plate through the suction cups and then taken out through the mechanical arm, compared with manual operation, the efficiency is effectively improved, and the advantages of reducing working hours, reducing cost and improving the working efficiency are achieved. And the product yield is ensured.

The utility model provides a welding-free grounding flat steel connecting device, which comprises a connecting main body and a locking and fastening mechanism, the connecting main body comprises a circular upper clamping sheet and a circular lower clamping sheet, the opposite surfaces of the upper clamping sheet and the lower clamping sheet are coated with alloy conducting layers, and the locking and fastening mechanism comprises an anti-loosening bolt. The nuts are arranged at the two ends of the lock bolt; corresponding through holes are formed in the upper clamping piece and the lower clamping piece, an anti-loosening bolt penetrates through the through holes and tightens a nut so as to lock flat steel arranged between the upper clamping piece and the lower clamping piece, and the flat steel can be clamped between the upper clamping piece and the lower clamping piece by arranging the circular upper clamping piece and the circular lower clamping piece and then through a locking and fastening mechanism. Therefore, original flat steel welding connection is replaced, compared with welding connection, operation is easy, and the circular upper clamping piece and the circular lower clamping piece are arranged so that grounding flat steel can be inserted in all directions for connection.

The utility model discloses a kind of light-weighted layer boards with wooden assembling structure belong to shelf layer board technical field, including lower panel and upper panel, lower panel and upper panel between being provided with edge strip, two groups of vertical strips and two groups of horizontal strips are set in the inner side of edge strip, two groups of vertical strips and two groups of horizontal strips are connected head to tail between, three groups of several profiled plates are set on lower panel and located in the inner side of edge strip, plug-in hole is set in the both sides of upper panel, fixed piece is set on upper panel and located at two groups of plug-in hole, positioning hole is also set in the both sides of upper panel, positioning piece is set on upper panel and located at two groups of positioning hole, injection hole is set in the middle position of one group of horizontal strips, the utility model, it reduces weight 60% (6kg / m 2 ) than solid wood layer board, density control is at 0.35g / cm 3 ;Bearing capacity reaches 120kg / m, bending coefficient is promoted to 18MPa;Wood utilization rate is increased by 40%, 100% degradable is realized without metal connecting piece.

This utility model provides a device for blade polishing, comprising: a loading mechanism and a unloading mechanism capable of respectively moving a material tray to a material tray loading station and a material tray unloading station; a turntable mechanism having a positioning seat and capable of moving the positioning seat to a turntable loading station, a polishing station, or a turntable unloading station; a rod gripping mechanism with grippers, the grippers being able to move between the material tray loading station, the turntable loading station, the polishing station, the turntable unloading station, and the material tray unloading station, and gripping and releasing the rod; and at least two material trays with positioning posts for mounting the rod. The purpose of this utility model is to provide a convenient and quick blade polishing device.

The utility model discloses a quick cooling device for a desktop injection molding machine mold, which comprises an upper metal cooling plate, a first containing cavity is arranged on one side of the upper metal cooling plate, a material injection port is arranged on the other side of the upper metal cooling plate, a first channel assembly is arranged in the upper metal cooling plate and comprises a plurality of first channels arranged at intervals, and the first channels horizontally penetrate through the upper metal cooling plate; the first channel located at the head end communicates with a first water inlet pipe, the first channel located at the tail end communicates with a first water outlet pipe, and a first connecting hose communicates between every two adjacent first channels. A second containing cavity is formed in one side of the lower metal cooling plate, a second channel assembly is arranged in the lower metal cooling plate and comprises a plurality of second channels arranged at intervals, the second channel located at the head end communicates with a second water inlet pipe, and the second channel located at the tail end communicates with a second water outlet pipe; and a second connecting hose is communicated between the adjacent second channels. The utility model has the advantages of simple processing, smooth opening and closing, lower cost and labor-hour saving.

The application provides a quick sleeve pressing device and method for a drill template type tire, which comprises a pressing fixing assembly and a sleeve pressing assembly. The pressing fixing assembly is used for fixing the drill template type tire to avoid movement of the drill template type tire during sleeve pressing. The sleeve pressing assembly comprises a mandrel, sleeve pressing guide columns and locking cross pins. The main body of the sleeve pressing guide column is a guide column, and a mounting plate is fixed to the lower end of the sleeve pressing guide column. The bottom surface of the mounting plate is fixed with the sleeve pressing guide column through the locking cross pins. The number and position of the sleeve pressing guide columns correspond to drill template holes on the drill template type tire, and the sleeve pressing guide columns are axially perpendicular. The sleeve pressing guide columns are used for mounting the bushings to be pressed. The application no longer needs to knock each drill sleeve for sleeve pressing, and all drill sleeves can be pressed into the drill template type tire by one-time knocking.

The application discloses a titanium alloy bogie beam forming device and forming method, the forming device comprises a platform; a guide rail is arranged along the Y-axis direction; supports are distributed along the length direction of the platform; support platforms are symmetrically distributed on both sides of the supports and are slidably connected with the platform through the guide rail; a centering and jacking device is fixedly connected with the support, and both ends of the centering and jacking device can abut against and contact the bottom end of the B surface of the beam; a supporting device is arranged above the centering and jacking device, and both ends of the supporting device can abut against and contact the top end of the B surface of the beam; a plurality of beam jacking devices are arranged on the support platform and are distributed on the A end, the B end and the A surface of the beam; a beam pressing device is arranged on the A surface side of the beam and is arranged on the support platform; a longitudinal beam pressing device is arranged on the C surface side of the small longitudinal beam and is arranged on the support; a plurality of longitudinal beam jacking devices are distributed on both sides of the small longitudinal beam and are arranged on the support and the longitudinal beam pressing device, and the application has the effects of accurate positioning, high precision and improved product quality.