44results about How to "Realize synchronized motion" patented technology

The invention relates to the technical field of bolt mounting equipment, in particular to an angle steel tower bolt perforation mounting method. By means of autonomous navigation of the installation robot and flexible operation of the mechanical arm, rapid positioning and taking-out of bolts and nuts are achieved, and the risk of manual climbing and operation is reduced. Accurate insertion and preliminary positioning of the bolt are ensured through accurate control of the mechanical arm, then the fastening effect is enhanced by combining impact tightening with the intermittent hammering technology, the fit clearance between the angle steel is effectively eliminated, and the bolt is prevented from loosening. The whole process is highly automatic, personal errors are reduced, and the mounting quality and the working safety are improved.

The invention provides a sunshade curtain assembly, a glass assembly and a vehicle. The sunshade curtain assembly comprises a rolling assembly, curtain cloth, two first synchronous wheels, two synchronous belts, two sliding blocks and two synchronous parts. One end of the curtain cloth is fixed to the winding assembly, the two first synchronous wheels are arranged at the two opposite ends of the winding assembly, and the two first synchronous wheels can rotate relative to the winding assembly. Each synchronous belt is arranged on the corresponding first synchronous wheel in a sleeving mode, each sliding block is fixed to the corresponding synchronous belt, and the two sliding blocks are fixed to the two opposite sides of the other end of the curtain cloth. According to the sunshade curtain assembly provided by the invention, the operation difficulty of adjusting the relative position of the pulley is reduced through the arrangement of the synchronizing piece. Meanwhile, the stability of the curtain cloth in the opening and closing process is improved, and noise generated when the curtain cloth is opened and closed is reduced.

The invention relates to the technical field of bolt mounting equipment, in particular to an angle steel tower bolt perforation mounting tool, fastening equipment and a mounting robot. The hammering part is responsible for hammering the head of the bolt in the nut tightening process so that the head of the bolt can be attached to angle steel more tightly; and then the nut is gradually fastened on the bolt in an impact tightening manner by matching with the tightening part. The tightening part continuously rotates the nut to apply pre-tightening force, the hammering part hammers the head of the bolt in time, the tightening part and the hammering part jointly act to gradually reduce the fit clearance between the angle steel, so that the effect of fastening the angle steel through the bolt is achieved, and the stability of bolt connection is effectively improved.

The invention discloses cable sheath thermal aging test equipment, and relates to the field of aging test equipment. According to the cable sheath thermal aging test equipment, through the ingenious structural design, the replacement efficiency of the sheath is greatly improved, when the sheath is replaced by traditional thermal aging test equipment, a user needs to manually take down clamps one by one, then the clamps with the clamped sheath are hung again, operation is tedious, and consumed time is long; the power rod is rotatably mounted at the bottom of the storage rack, the positioning rack on the power rod is matched with the sleeve rods to fix cable sheaths in advance, the sheaths do not need to be mounted one by one when replaced, follow-up detection can be carried out only by placing the sleeve rods with the mounted sheaths on the positioning rack, the sheath replacement time is effectively shortened, and meanwhile, the cable sheaths can be conveniently replaced. The multiple sets of power rods rotate synchronously through the second chain wheel and the second chain, it is ensured that the multiple sets of positioning frames act synchronously, the replacement efficiency is further improved, and great convenience is brought to detection work of the cable sheath.

The invention discloses multifunctional foam processing equipment, and relates to the technical field of material conveying. Comprising a rack, a transfer mechanism and a detection turnover mechanism, an electric control cabinet is arranged at the lower end of a middle frame body, the transfer mechanism comprises a horizontal transfer module and a vertical transfer module, the vertical transfer module is hung on the horizontal transfer module, two material taking devices are arranged at the bottom of the vertical transfer module, the rack is used for bearing the transfer mechanism, and the detection turnover mechanism is arranged on the rack. The vertical transferring module is arranged on the horizontal transferring module in a suspended mode, synchronous movement of the horizontal transferring module and the vertical transferring module is achieved, the occupied area is reduced, the stroke speed is high, the operation efficiency is high, the two material taking devices are arranged and used for taking different flexible pipe and hard pipe foam pipe products respectively, material taking and conveying are stable, and the material taking precision is high. And the detection turnover mechanism detects the position of the foam pipe and adjusts the direction of the foam pipe, so that material grabbing of the material taking device is facilitated.

The utility model relates to a protective device, belongs to the technical field of central air conditioners, and particularly relates to a drip-proof central air conditioner protective device which comprises a frame, a connecting frame, a dovetail groove, a dovetail block, a water collecting box and a collecting box, a sliding unit is arranged on the inner wall of the collecting box, and an extrusion block and an extrusion plate are arranged in the collecting box through the sliding unit. A sponge block is installed on one side of the extrusion block, an avoiding hole is formed in the inner wall of one side of the frame, a sliding rod is fixedly connected to one side of the extrusion plate, the surface of the sliding rod is sleeved with a spring, and the surface of the sliding rod is slidably connected with the inner wall of the avoiding hole; by means of the collecting assembly, water drops caused by condensation can be collected, the use safety of the air conditioner is improved, and the problems that when an existing air conditioner conducts refrigeration, when the temperature of fed cold air is lower than the indoor dew point temperature, condensed water drops can be generated on the wall of an air pipe, the periphery of an air opening and blades, the water drops can drop out along the air opening, and the use safety of the air conditioner is affected are solved. And unsafe hidden dangers are caused to the equipment.

The application provides a novel freight elevator structure, wherein the lifting device comprises two motors arranged on the top of the left and right side walls of a freight elevator body; a screw rod fixedly connected with one end of a motor output shaft through a shaft coupling; two threaded sleeves threadedly connected with the surfaces of the two screw rods; a supporting rod connecting the two threaded sleeves; a U-shaped fixing frame arranged on the top surface of the supporting rod and opening towards the front wall of the freight elevator body; a storage plate embedded in the inner wall of the U-shaped fixing frame and connected with the U-shaped fixing frame through a sliding rail mechanism; a mounting groove arranged on the front end surface of the storage plate and penetrating through the storage plate; and a supporting mechanism arranged in the mounting groove. The lifting device of the application is symmetrical in arrangement of two groups of motors, screw rods and threaded sleeves on the opposite sides of the elevator, and the two threaded sleeves are connected together through the supporting rod, so that the storage plate is supported, the synchronous movement of the two threaded sleeves is realized, and the problem of low reliability of the lifting device and the placing assembly in the prior art in long-time use is solved.

The utility model discloses a flat wire motor I-PIN flaring mechanism which comprises a fixed base plate, a movable plate is movably arranged on the fixed base plate, an air cylinder, an adjusting screw and a guide seat are connected between the fixed base plate and the movable plate, flaring structures are oppositely arranged on the two sides of the upper end of the fixed base plate, and the upper end of the fixed base plate is provided with an opening. The flaring structure comprises a wedge block, a cam follower, a guide block and a pusher dog, and a sliding groove is formed in the surface of the wedge block. According to the I-PIN flaring mechanism of the flat wire motor, synchronous movement of the inner pusher dog and the outer pusher dog is effectively achieved, the air cylinder is used in cooperation with the adjusting screw, the consistency of flaring displacement can be achieved, mechanical adjustment can be achieved, occupied space is greatly reduced, more operation space is provided for the mechanism or an operator, and the flaring efficiency is improved. The copper wire insulation layer is prevented from being scratched in the assembling process due to the additionally arranged guide groove, rapid model changing is achieved through harting, machine types can be rapidly switched, and convenience is brought to production and maintenance.

The utility model relates to the technical field of insulator production, in particular to a synchronous mold opening device for insulator molding, which comprises an upper mold and a lower mold, a molding cavity is arranged between the upper mold and the lower mold, and a material injection port is arranged on the upper mold; the forming mold is composed of a mold base and sliding mold cores, a pair of sliding mold cores are arranged on the mold base in a sliding opening and closing mode, the opening and closing process of the forming mold is completed through opening and closing of the sliding mold cores, and a mounting cavity used for containing an insulator mold blank is formed between the mold base and the pair of sliding mold cores; the lower mold is provided with two mold feeding guide rails, the forming mold is slidably placed on the inner sides of the two mold feeding guide rails, and opening and closing assemblies are arranged at the ends, away from the lower mold, of the two mold feeding guide rails and located on the outer side of the forming mold. According to the utility model, the two sliding mold cores on the forming mold can be automatically and synchronously opened and closed through the opening and closing assembly, and the high consistency and reliability in the opening and closing process of the mold can be effectively ensured, so that the forming precision and the product quality of an insulator are remarkably improved.

The utility model discloses a massage chair of back frame and lower limbs bracket linkage, including seat frame, back frame and lower limbs bracket, and back frame is configured in seat frame by a first pivot pivot connection, and lower limbs bracket is configured in seat frame by a second pivot, and the massage chair still includes a linkage component, and the linkage component is configured in back frame by a third pivot pivot connection and is configured in lower limbs bracket by a fourth pivot pivot connection, wherein the axis of first pivot and the axis of second pivot jointly define first imaginary plane, and the axis of third pivot and the axis of fourth pivot jointly define second imaginary plane different from first imaginary plane, when one of back frame and lower limbs bracket is driven to swing in fixed angle range, first imaginary plane and second imaginary plane are far away or close to each other, to drive the other synchronous swing through linkage component, and the scheme can complete posture switching without independent driving mechanism relative to prior art.

The utility model discloses a swing type rotating gun welding machine which comprises a supporting frame, a swing mechanism is arranged on the supporting frame, the swing mechanism comprises a rotating shaft, an installation frame, a swing frame, a sliding sleeve, a large rack, an air cylinder and a large gear, and a bunching mechanism is arranged on the swing frame. The bunching mechanism comprises a connecting seat, a bunching sleeve, a screw sleeve, screws, bunching clamps, a tension spring, a push plate, a pinion, a transmission sleeve, a pinion rack and a limiting mechanism, the connecting seat is fixed in the swing frame, the combined design of the connecting seat, the bunching sleeve and the screw sleeve is adopted, the distribution of the screws and the bunching clamps is matched, a reliable cable management system is formed, and the service life of the cable management system is prolonged. Through meshing transmission of the small gear, the transmission sleeve and the small rack, synchronous movement of the multiple sets of bunching clamps is achieved, the surface of the air pipe is protected through the design of the soft cushion, the limiting plate provides a stable movement track for the bunching clamps, and the whole bunching system can effectively manage various cables and prevent winding and damage.

The invention relates to the field of combined processing equipment, and in particular to a special processing equipment for super-long thermocouples; the equipment comprises a processing platform, a conveying component, a thermocouple placement component, a transmission component, a thermocouple arrangement component, a welding and fixing component and a molding component; the invention can install an adjustable telescopic rod by arranging a mounting plate, and can drive an adjusting frame to move by arranging the adjustable telescopic rod, so that the adjusting frame can be used to drive a connecting belt to move, so that the connecting belt is at different positions on a first conical wheel and a second conical wheel, so as to change the transmission ratio between the first conical wheel and the second conical wheel, so that patch thermocouples are placed at different intervals, so that the patch thermocouples can be placed at different intervals according to requirements, and the installation position of the patch thermocouples is more accurate.

The present application discloses a hydraulic vibration system, which belongs to the field of hydraulic vibration technology. The system includes an oil supply module, a power module, a hydraulic module, an execution module and a control module, wherein the control module is electrically connected to the oil supply module, the power module, the hydraulic module and the execution module respectively; the oil supply module is connected to the power module, and the oil supply module is used to supply oil to the power module; the power module is connected to the hydraulic module, and the power module and the hydraulic module jointly control the vibration amplitude of the execution module; the hydraulic module is connected to the execution module, and the hydraulic module is integrated with a switch valve group, an electro-hydraulic reversing valve, a relief valve and a diverter and collector valve; the vibration frequency and period of the execution module can be adjusted by opening and closing the switch valve group. The main purpose of the present application is to provide a vibration amplitude, a vibration frequency and a vibration period that meet the processing requirements when processing pipeline workpieces or similar products.

The invention relates to the technical field of pipe bending, in particular to a pipe bending mechanism for overhauling a steam turbine of a thermal power plant, which comprises a workbench, a clamping assembly, a center assembly and a bending assembly are sequentially arranged on the workbench along the length direction of the workbench, one end of a to-be-bent pipe is clamped on the clamping assembly, and the other end of the to-be-bent pipe penetrates through the center assembly and is arranged on the bending assembly. Wherein the bending center of the pipe fitting corresponds to the center assembly; by means of the clamping assembly, the bending assembly and the center assembly which are ingenious in structure, accurate clamping and bending of pipe fittings with different diameters are achieved, it is ensured that the bending center position of the pipe fittings is accurate, and the situation that the bending center deviates due to sliding of the pipe fittings in the bending process is prevented; according to the clamping assembly, the penetrating pipe with the adjustable diameter and the clamping sliding rails on the two sides are adopted and matched with the arc-shaped clamping plates, it can be guaranteed that the pipe fitting is stably fixed in the bending operation process, meanwhile, the double-shaft lead screw and the synchronous part are arranged, synchronous movement between the two clamping parts is achieved, and it is guaranteed that the two ends of the pipe fitting are clamped at the same time and synchronously.

The present application discloses a three-section synchronous slide rail and a drawer, wherein the three-section synchronous slide rail includes a movable rail, a middle rail, a fixed rail, a gear assembly, an upper rack and a lower rack assembly; the upper rack is fixed in the movable rail, the middle rail is embedded in the movable rail movably along the length direction, the lower rack assembly is arranged in the middle rail movably along the length direction, and the lower rack assembly is connected to the fixed rail movably along the length direction; the gear assembly is arranged on the middle rail and passes through the top surface of the middle rail, the gear assembly is located between the upper rack and the lower rack assembly, the gear assembly includes a bevel gear, and the upper rack and the lower rack are respectively meshed with the bevel gear. According to the inclination of the bevel gear and the module or pitch of the upper rack and the lower rack, the speed ratio required for the movement of the upper rack and the lower rack is achieved. Compared with the existing two relatively rotating spur gears, the bevel gear is an integral body, which avoids the misalignment between the rack and the bevel gear, and improves the synchronous stability of the movement of the slide rail.

The invention discloses a base plate polishing, feeding and discharging device which comprises a side frame, a first stroke mechanism is assembled and connected to the side frame, a grabbing and feeding mechanism is assembled and connected to the first stroke mechanism, and after the grabbing and feeding mechanism grabs a base plate, the base plate is fed into the side frame. The first stroke mechanism pushes the grabbing and feeding mechanism and the base plate to horizontally move to the final position of a first stroke; the base plate polishing feeding and discharging device further comprises a second stroke mechanism, the second stroke mechanism comprises a sliding rail rod, the base plate slides on the sliding rail rod, and the second stroke mechanism is used for continuously pushing the base plate to the polishing jig table. The base plate polishing and feeding and discharging device further comprises a discharging mechanism, and the discharging mechanism is used for discharging the polished base plates. The invention further discloses a method for polishing the base plate based on the device. The method comprises the first stroke movement process, the second stroke movement process and the discharging process. By means of the device and the machining method, automatic feeding, pushing and discharging are achieved, and the machining production efficiency of the base plate is greatly improved.

The invention discloses a paper cup barrel returning device for a paper cup forming machine, relates to the technical field of paper cup processing equipment, and aims to provide the paper cup barrel returning device for the paper cup forming machine, which can return and convey a cup barrel remotely and can freely and quickly adjust the conveying distance. According to the technical scheme, the paper cup feeding device is characterized by comprising a mounting plate, a supporting frame is arranged on the mounting plate, a paper cup mold is arranged on the side face of the supporting frame, a material returning barrel is arranged at the position, corresponding to the paper cup mold, of the mounting plate, and rotary driving components are arranged at the positions, located on the two sides of the paper cup mold, of the mounting plate. During working, the rotation driving part drives the rubber flywheel to rotate at a high speed, the opening and closing part pushes the rotation driving part to rotate towards the paper cup mold, the rotation driving part drives the rubber flywheel to be attached to the paper cup mold, and a cup cylinder on the paper cup mold is thrown out through the rubber flywheel rotating at the high speed.

The utility model discloses a building construction scaffold and a building construction bearing frame, and particularly relates to the technical field of building construction, the building construction scaffold comprises a supporting plate, and an adjusting piece used for adjusting the height of the supporting plate is installed at the bottom of the supporting plate; the adjusting part comprises four supporting columns arranged at the bottom of the supporting plate, a supporting groove is formed in the top of each supporting column, and a movable column is arranged in each supporting groove. The driving gear and the driven gear are meshed to drive the four gears driven by the toothed belt to rotate, so that synchronous movement of the four fixing rings can be achieved, the fixing rings are in threaded connection with the moving column, the fixing rings can drive the moving column limited by the positioning plate and the positioning groove to move up and down, and the moving column can move up and down. The effect of adjusting the height of the supporting plate is achieved, synchronous adjustment is achieved, the situation of distortion caused by the height difference can be effectively avoided, and meanwhile the efficiency of adjusting the height of the supporting plate can be improved.

The utility model discloses a quick assembling and positioning device for a sofa modular frame, and relates to the technical field of sofa modular frames. Guide assemblies are arranged on the two sides of the top of the base plate, sliding tables are slidably mounted above the guide assemblies, and an opening and closing mechanism is arranged in the center of the top of the base plate and at least used for synchronous opening and closing movement of the sliding tables on the two sides; a rotating mechanism is arranged in the middle of the upper portion of the sliding table, jacking assemblies are arranged on the two sides of the top of the sliding table, a storage table is installed above the rotating mechanism, the rotating mechanism is at least used for driving the storage table to rotate, the jacking assemblies are at least used for driving the storage table to ascend and descend, and the modular sofa frame is placed above the storage table. And an opening and closing mechanism is adopted, synchronous movement of the two sliding tables can be achieved, opening and closing of the sliding tables can be achieved, the modular frames on the storage table can be driven to be close to each other, splicing of the modular frames is achieved, and people can more conveniently position and use the modular frame assembly.

The utility model discloses a packer kink gear signal detection device, which relates to the technical field of packer detection, and is characterized in that a packer worker places an annular article to be packed at the upper end of an electric turntable and then starts a servo motor, the servo motor drives a transmission rod to rotate, and the transmission rod drives a kink gear to rotate; therefore, when the kinking gear rotates, a first auxiliary gear, a second auxiliary gear and a third auxiliary gear can be driven to rotate synchronously, the first auxiliary gear, the second auxiliary gear and the third auxiliary gear can conduct auxiliary rotation and limiting on the kinking gear, and when the kinking gear rotates, a winding roller arranged at the upper end can continuously follow the kinking gear to move; a worker only needs to place a packaged material between the winding roller and a packaged object, the winding roller is twisted, the gear can continuously do planetary motion around the electric rotating disc, and therefore packaging is completed.

The application discloses an industrial internet monitoring device, which comprises a base, a fixed rod is fixedly arranged on the upper end face of the base, a supporting rod is arranged on the upper end face of the fixed rod, a movable rod is arranged above the supporting rod, a screw rod is rotatably arranged on the upper end face of the supporting rod and is screwed with the movable rod, the supporting rod is further provided with a stabilizing mechanism matched with the movable rod, an installation block is fixedly arranged on the end of the movable rod, a supporting ring is arranged above the base, the installation block and the supporting ring are connected through a plurality of connecting rods, an installation frame is arranged at the bottom of the installation block, a monitoring device is arranged in the installation frame through an angle mechanism, and a bottom groove is arranged on the bottom wall of the installation block. Through the arrangement of the movable rod, the screw rod and the stabilizing rod and other components, the height of the movable rod relative to the supporting rod and other components can be quickly adjusted by the screw rod, the maintenance, replacement and other operations of the monitoring device in the installation frame can be conveniently realized, and the overall use convenience of the device is ensured.

The utility model provides a plasma bag protection device. The plasma bag protection device comprises a plasma separator body, a weighing scale arranged on the plasma separator body and used for hanging a plasma bag, a blocking and protecting mechanism arranged on the plasma separator body and a tray mechanism. The blocking and protecting mechanism comprises a bracket located below the weighing scale, a barrel arranged on the bracket and provided with an opening in the top, a first blocking and protecting piece and a second blocking and protecting piece, the first blocking and protecting piece and the second blocking and protecting piece are arranged in the barrel and are both in an annular shape, and the blocking and protecting mechanism at least has a storage state and an unfolding state. The first blocking and protecting part and the second blocking and protecting part are sequentially contained in the barrel in the height direction of the plasma separator body in the unfolded state, and the first blocking and protecting part and the second blocking and protecting part sequentially stretch out of the barrel in the height direction of the plasma separator body in the unfolded state and form protection on the plasma bag. And the tray is driven by the driving part to lift and is used for fixing the plasma bag, and the safety usability of the whole plasma bag protection device can be improved.

The utility model provides a roller coaster wheel train and a roller coaster. The roller coaster wheel train comprises a left wheel train support, a right wheel train support, a left wheel train arranged on the left wheel train support, a right wheel train arranged on the right wheel train support and a connecting rod device connected with the left wheel train and the right wheel train. The connecting rod device comprises a left swing plate arranged on the left wheel train, a right swing plate arranged on the right wheel train and a telescopic connecting rod movably connected with the left swing plate and the right swing plate. The telescopic connecting rod is matched with the left swing plate and the right swing plate and used for enabling the left wheel train and the right wheel train to move synchronously. The synchronous change of the angles of the wheel trains on the two sides of the train can be achieved, the wheel trains can make contact with a rail more conveniently, operation is smoother, and therefore the riding experience of a user is improved.

The present application relates to the technical field of air conditioning pipeline detection equipment, and in particular to a check fixture for automobile air conditioning pipeline assembly, comprising a plurality of positioning posts, an open slot for detecting the air conditioning pipeline assembly is provided on the top wall of the positioning posts, an adjustment plate and at least two sets of limiting mechanisms for connecting the adjustment plate and each positioning post, the limiting mechanism comprising a limiting rod and an adjustment component for driving the limiting rod to slide along the length direction, an embedding groove for inserting the positioning post is provided on the adjustment plate, the positioning post is arranged perpendicular to the top wall of the adjustment plate along the length direction, a sliding groove for sliding the limiting rod is provided on the adjustment plate, a sliding groove connected to the embedding groove is provided on the installation section of the positioning post extending into the embedding groove, a limiting hole for inserting the limiting rod is provided; the designed check fixture for automobile air conditioning pipeline assembly facilitates the clamping of the positioning post and the adjustment plate through the limiting mechanism, thereby improving the installation efficiency of the positioning post; and the air conditioning pipeline assembly is conveniently detected through the open slot.

The present application relates to the technical fields of disassembly, in particular to a carbon sleeve roller disassembly device, which comprises a carbon sleeve roller body, a snap ring arranged outside the carbon sleeve roller, a fixing ring arranged outside the carbon sleeve roller body, and a fixing device arranged on the fixing ring; the pull rod is inserted into the bolt hole to be clamped, the electric wrench is aligned with the threaded opening, the electric wrench drives the first rotating block to rotate through the threaded opening, the first rotating block drives the threaded rod to rotate, the threaded rod drives the bracket and the rotating rod to move towards the end close to the carbon sleeve roller, the length of the connecting rod is adjusted, the threaded rod is in contact with the carbon sleeve roller body, the electric wrench continues to rotate, the electric wrench drives the threaded rod to rotate through the threaded opening, the threaded rod drives the bracket and the rotating rod to move towards the end away from the carbon sleeve roller, the rotating rod drives the pull rod to move in the movement process, the pull rod pulls the snap ring through the threaded bolt hole to be disassembled, which not only prolongs the service life of the carbon sleeve device, but also effectively improves the operation efficiency.

The utility model provides an adjustable automobile inhaul cable mechanism. The adjustable automobile inhaul cable mechanism comprises an input movement mechanism and an output movement mechanism which are movably installed on a support. The at least one input inhaul cable is connected between the input movement mechanism and the input mechanism; the at least one output inhaul cable is connected between the output movement mechanism and the output mechanism; the clutch structure is connected with the input movement mechanism and the output movement mechanism and is arranged to be switched between a coupling state and a disengagement state; when the clutch structure is in the coupling state, the input movement mechanism can drive the output movement mechanism to move synchronously, and when the clutch structure is in the disengagement state, the input movement mechanism can move relative to the output movement mechanism, and therefore the input inhaul cable and the output inhaul cable can have different movement strokes. The problem that in the prior art, when the movement strokes of the input end and the output end of the inhaul cable are inconsistent, the inhaul cable is prone to over-pulling damage is solved.

The multi-oil-cylinder synchronous guide mechanism comprises a plurality of oil cylinders, an oil inlet and an oil outlet at the upper end of each oil cylinder are sequentially connected with a pressure reducing valve and a throttling valve through pipelines, all branches are jointly merged into a connector of a three-position four-way reversing valve, and a group of one-way valves and electromagnetic switch valves which are connected in series are connected to each group of pressure reducing valves and throttling valves in parallel. Oil inlets and outlets in the lower ends of all the oil cylinders are jointly merged into another same-side interface of the three-position four-way reversing valve, one interface on the other side of the three-position four-way reversing valve is sequentially connected with an oil pump and an oil tank, and the last interface of the three-position four-way reversing valve is connected with the oil tank. According to the multi-oil-cylinder synchronous guide mechanism, the oil outlet quantity of the oil inlet and the oil outlet in the upper portion of the hydraulic oil cylinder is controlled through the simple hydraulic element, then the initial positions of all the oil cylinders are unified, the stretching speed is consistent, and synchronous movement is achieved.

The invention relates to a scissor type unfolding mechanism driving device which comprises a driving unit assembly, a gear rope wheel shaft assembly, a bottom supporting shaft assembly, a rope supporting assembly, a supporting bottom plate, a bottom supporting rod assembly, a bottom supporting rod linkage assembly and a driving rope. A driving rope starts from the gear rope wheel shaft assembly, bypasses a driving rope guide wheel and is fixed to a driving rope fixing wheel of the bottom supporting rod assembly on the other side, the bottom supporting shaft assemblies on the two sides are connected through the bottom supporting rod linkage assembly, and synchronous reverse movement is achieved. Rotation of the driving unit assembly is converted into rotation of the supporting rod at the bottom of the scissor type unfolding mechanism, and therefore the scissor type unfolding mechanism is driven to be unfolded, and the advantages of being light in weight, high in reliability and large in driving force are achieved.

The utility model discloses a kind of clamping mechanisms for hardware machining, comprising: processing table, the upper end of the processing table is fixedly connected with placing table, the upper end of the placing table is provided with expansion assembly, the inner wall of the placing table is provided with clamping assembly, the expansion assembly includes shell, the upper end of the placing table is fixedly connected with shell, the inner wall of the shell is provided with connecting block, the inner wall of the connecting block is fixedly connected with connecting rod, and the number of connecting rod is four symmetrically arranged, the end of the connecting rod away from connecting block is rotatably connected with expansion arm by pivot, the outer side wall of the shell is provided with through-hole, and the number of through-hole is four symmetrically arranged, the inner wall of the through-hole is fixedly connected with limit shaft, the inner wall of the shell is rotatably connected with transmission shaft. The utility model cooperates through expansion assembly and clamping assembly, effectively solve the problem that traditional plane clamping plate is not firmly clamped when facing inner cylindrical hardware.